CN107145868A - Display module - Google Patents
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- CN107145868A CN107145868A CN201710321343.1A CN201710321343A CN107145868A CN 107145868 A CN107145868 A CN 107145868A CN 201710321343 A CN201710321343 A CN 201710321343A CN 107145868 A CN107145868 A CN 107145868A
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- light
- groove
- protective layer
- display module
- backlight
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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Abstract
A kind of display module, including：Protective layer；Light-emitting display panel, the light-emitting display panel is located at below the protective layer；Light can pass through the light-emitting display panel from top to bottom；The protective layer lower surface has upwardly recessed groove, and the groove is located at the oblique upper of the light-emitting display panel；The display module also includes：Optical fingerprint sensor, the optical fingerprint sensor is located at below the light-emitting display panel；Point-like backlight, the point-like backlight is at least partially disposed in the groove, and the light that the point-like backlight is sent enters the protective layer from least one of which surface of the groove.The display module integrated optics fingerprint identification function.
Description
Technical field
Field, more particularly to a kind of display module are recognized the present invention relates to optical finger print.
Background technology
Fingerprint imaging identification technology, is the fingerprint image that human body is collected by fingerprint sensor, then with system
Existing fingerprint imaging information is compared, and whether carrys out correct judgment, and then realize the technology of identification.The side used due to it
Just property, and somatic fingerprint uniqueness, fingerprint identification technology has been widely used in every field.Such as public security bureau, customs
Etc. field of safety check, consumer product area such as the gate control system of building, and PC and mobile phone etc..
The implementation of fingerprint imaging identification technology has the multiple technologies such as optical imagery, capacitance imaging, ultrasonic imaging.Relatively
For, optical finger print imaging technique, its imaging effect is relatively preferable, and equipment cost is relatively low.
In the prior art, the existing integrating fingerprint identification function in display module, but it is typically to use capacitance type fingerprint
Recognition principle.More contents about integrating fingerprint identification function in display module refer to Publication No. CN106024833A's
Chinese invention patent application.
The display module structure of existing integrating fingerprint identification function has much room for improvement, and performance has much room for improvement.
The content of the invention
The present invention solve the problem of be to provide a kind of display module, be better achieved fingerprint identification function is integrated in it is aobvious
Show in module, so as to while display, obtain clearly fingerprint image.
To solve the above problems, the invention provides a kind of display module, including：A kind of display module, including：Protection
Layer；Light-emitting display panel, the light-emitting display panel is located at below the protective layer；Light can pass through institute from top to bottom
State light-emitting display panel；The protective layer lower surface has upwardly recessed groove, and the groove is aobvious positioned at the self-luminous
Show the oblique upper of panel；The display module also includes：Optical fingerprint sensor, the optical fingerprint sensor be located at it is described from
Below light emitting display panel；Point-like backlight, the point-like backlight is at least partially disposed in the groove, the point-like backlight
The light that source is sent enters the protective layer from least one of which surface of the groove.
Optionally, the light-emitting display panel includes the first transparent substrates, the second transparent substrates and the first printing opacity base
Self-luminescence circuit layer between plate and the second transparent substrates；The self-luminescence circuit layer includes multiple display pixel cells；Each
The display pixel cells include at least one alternatively non-transparent district and at least one transparent area.
Optionally, there is filter layer between the optical fingerprint sensor and the light-emitting display panel.
Optionally, it is first surface to the minimum surface of light-emitting display panel distance in the surface of the groove,
The light that the backlight is sent enters the protective layer from the first surface.
Optionally, the top surface of the groove is parallel with the upper and lower surface of the protective layer；Described first
Surface is plane, and the angle of the lower surface of the top surface and the protective layer of the first surface and the groove is all straight
Angle.
Optionally, the top surface of the groove is parallel with the upper and lower surface of the protective layer；Described first
Surface is plane, and the angle of the lower surface of the top surface and the protective layer of the first surface and the groove is all to be blunt
Angle.
Optionally, the first surface is concave curved surface, and the top surface of the top edge of the concave curved surface and the groove connects
Connect, the lower edge of the concave curved surface is connected with the lower surface of the protective layer.
Optionally, the first surface has anti-reflection film, and the light that the anti-reflection film can increase the backlight enters
The ratio of the protective layer.
Optionally, in the upper surface of the protective layer, with the backlight just to part there is light shield layer；Or, institute
Stating the top surface of groove has light shield layer；Or, the upper surface of the protective layer and the backlight just to part have
Light shield layer, and the top surface of the groove also has light shield layer.
Optionally, there is thickening layer between the light-emitting display panel and the protective layer.
Optionally, the point-like backlight is a LED；Or, the point-like backlight is two or more LED,
The groove is multiple, and a LED is located in a groove.
Optionally, the point-like backlight is two or more LED, and described two above LEDs are evenly distributed on same
In the individual groove.
Optionally, the optical fingerprint sensor includes more than two indicative of local optical induction regions, a LED
One indicative of local optical induction region of correspondence；The display module also includes touch-control structure, and the touch-control structure includes two
Local touch area above, one local touch area of indicative of local optical induction region correspondence.
Optionally, the optical fingerprint sensor includes the indicative of local optical induction region of more than three, the LED number
Less than the number of the indicative of local optical induction region；The display module also includes touch-control structure, and the touch-control structure includes three
Local touch area more than individual, one local touch area of indicative of local optical induction region correspondence.
Optionally, each multiple adjacent described indicative of local optical induction region of the LED correspondence；And adjacent two
The corresponding indicative of local optical induction region part of the LED is identical.
Compared with prior art, technical scheme has advantages below：
In technical scheme, protective layer, light-emitting display panel and optical fingerprint sensor are set from top to bottom.
Wherein, light can pass through light-emitting display panel from top to bottom.Protective layer lower surface has groove upwardly recessed upwards, institute
The oblique upper that groove is located at the light-emitting display panel is stated, while the point-like backlight is at least partially disposed at the groove
Interior, the light that the point-like backlight is sent enters the protective layer from least one of which surface of the groove.Therefore, point
The light that shape backlight is sent needs not move through light-emitting display panel and optical fingerprint sensor, is put into protective layer, and
At the contact interface of protective layer and finger, light has carried out the optical phenomenas such as corresponding reflection and refraction, returns again to corresponding anti-
Light-emitting display panel of the light below protective layer is penetrated, these reflection lights pass through arrival optics after light-emitting display panel to refer to
Line sensor, is received by optical fingerprint sensor, so that optical fingerprint sensor obtains corresponding fingerprint image, is collected
Fingerprint image it is clear, display module is integrated with good fingerprint identification function.
In technical scheme, when using display module, corresponding with optical fingerprint sensor first is controlled to show
Show that region, when optical fingerprint sensor carries out fingerprint image acquisition work, is stopped or shown specific picture, and control
Second viewing area shows the information associated with fingerprint image acquisition work, so that display function and fingerprint identification function
Mutual cooperation is got up, and realizes more preferable user experience.
Brief description of the drawings
Fig. 1 is the display module cross-sectional view that one embodiment of the invention is provided；
Fig. 2 is the display module cross-sectional view that another embodiment of the present invention is provided；
Fig. 3 is the display module cross-sectional view that another embodiment of the present invention is provided；
Fig. 4 is the display module cross-sectional view that another embodiment of the present invention is provided；
Fig. 5 is the display module cross-sectional view that another embodiment of the present invention is provided；
Fig. 6 is the display module present invention looks up structural representation that another embodiment of the present invention is provided；
Fig. 7 is the display module present invention looks up structural representation that another embodiment of the present invention is provided.
Embodiment
As described in background, using the aobvious of capacitance type fingerprint imaging technique and light-emitting display panel more than prior art
Show that module is carried out integrated.
Therefore, the present invention is provided in a kind of display module, optical fingerprint sensor is integrated in light-emitting display panel
Together, so that while display is realized, fingerprint identification function can be realized, also, pass through corresponding structure design so that aobvious
Show that module can collect clearly fingerprint image, realize that display function and fingerprint identification function cooperate so that user couple
Display module has more preferable usage experience.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
In this specification, in addition to Fig. 6 and Fig. 7 partial content, the upper and lower relation in other contents is will show mould
Group is placed on below eyes of user, and makes protective layer be located at the orientation of the top to be defined.That is, if
One structure is located at the top of another structure, then illustrates when display module is placed on below eyes of user and protective layer is located at most
During top, this structure, closer to eyes of user, illustrates in this together than another structure.
The embodiment of the present invention provides a kind of display module, refer to Fig. 1.
The display module includes protective layer 110, light-emitting display panel 120, optical fingerprint sensor 130 and the point-like back of the body
Light source 140.Light-emitting display panel 120 is located at the lower section of protective layer 110.Light can pass through light-emitting display panel from top to bottom
120.The lower surface of protective layer 110 has a upwardly recessed groove 111, groove 111 be located at light-emitting display panel 120 it is oblique on
Side.The part of point-like backlight 140 is located in groove 111, and the light that point-like backlight is sent is from one of surface of groove 111
Into protective layer 110, the light is as shown in the arrow in Fig. 1 obliquely.Arrow in Fig. 1 obliquely then represents corresponding anti-
Penetrate light.For ease of showing, in each figure of each embodiment, ignore refraction of the light between different optical medium structures, herein
Illustrate in the lump.
Light-emitting display panel 120 can be located at immediately below protective layer 110, and can directly be laminated in protective layer
110 lower surfaces, i.e. both directly contacts.In the case of other, light-emitting display panel 120 can also be pasted onto guarantor by optical cement
The lower surface of sheath 110.Using optics glue, it can to avoid existing between protective layer 110 and light-emitting display panel 120
Air, further improves the optical property of module.
It is previously noted that light can pass through light-emitting display panel 120 from top to bottom, wherein, " from top to bottom's " is specific
Mode can be straight down, obliquely or it is tortuous downwards.In a word, light can be from direction on light-emitting display panel 120
Lower transmission light-emitting display panel 120, and continue to propagate downwards.Meanwhile, light-emitting display panel 120 is in other directions (as before
Rear to and left and right directions) do not require then on printing opacity, and these directions it is light tight more preferably.
Point-like backlight 140 is that part is located in groove 111.In other embodiments, point-like backlight can be fully located at
In groove, i.e. point-like backlight is at least partially disposed in groove.
To control whole display module that there is good fingerprint recognition performance, and ensure that protective layer 110 possesses enough
Mechanical strength, the depth of groove 111 can be arranged on 0.1mm between 0.5mm.
To enable light to pass through light-emitting display panel 120 from top to bottom, one kind of light-emitting display panel 120 is specific
Structure can be with as shown in figure 1, including the first transparent substrates 121, the second transparent substrates 122 and the first transparent substrates 121 and
Self-luminescence circuit layer 123 between two transparent substrates 122.Self-luminescence circuit layer 123 in light-emitting display panel 120 includes many
Individual display pixel cells 1231.The region of display pixel cells 1231, and each display pixel are illustrated in Fig. 1 with dotted line frame
The neighbouring relations of unit 1231.It should be noted, although dotted line frame includes part the first transparent substrates 121 and the second transparent substrates
122, but this is not only to facilitate display, display pixel cells 1231 include the first transparent substrates 121 and the second printing opacity base
Plate 122.The display pixel cells of other embodiments use identical dotted line frame display mode, illustrate in this together.Each display
Pixel cell 1231 includes at least one alternatively non-transparent district and at least one transparent area.
Light-emitting display panel 120 also includes sealing structure (not marking).Sealing structure also is located at the first transparent substrates 121
And second between transparent substrates 122.Sealing structure is together with the first transparent substrates 121 and the second transparent substrates 122, by self-luminous
Circuit layer 123 is sealed between the first transparent substrates 121 and the second transparent substrates 122.
The material of first transparent substrates 121 and the second transparent substrates 122 can be light transmissive material, and specific material can be nothing
Other plastic products beyond machine glass or lucite or lucite.
Light-emitting display panel 120 can be the display pixel cells of OLED display panel, now self-luminescence circuit layer 123
1231 can include the structures such as anode layer, hole injection layer (HIL), luminescent layer (EML), electron injecting layer (EIL) and cathode layer,
Can also have hole transmission layer (HTL) and electron transfer layer (ETL), driving OLED TFT, driving metal wire can also be included
With the structure such as storage capacitance.The principle of luminosity of OLED display panel is：Under certain voltage driving, electronics and hole are respectively from the moon
Pole layer and anode layer move to luminescent layer, and are met in luminescent layer, form exciton and excite light emitting molecule, light emitting molecule warp
Overshoot relaxation and emit beam.
The structures such as above-mentioned luminescent layer can be located in corresponding alternatively non-transparent district.And on alternatively non-transparent district periphery, display pixel list
Member 1231 has corresponding transparent area.
It should be noted that in other embodiments, the transparent area of a display pixel cells can also be with another display
The transparent area of pixel cell is linked together, and forms the bigger transparent area of a scope, and now, the two display pixel cells are led to
Be often it is adjacent, also, two display pixel cells it is adjacent between region be also a transparent area so that three
Transparent area is connected as a big transparent area.
The present embodiment sets the height of transparent area to be equal to the height of self-luminescence circuit layer 123, as shown in figure 1, so as to ensure
Light can be from transparent area through self-luminescence circuit layer 123 (it should be noted that each position height of self-luminescence circuit layer 123
May slightly have difference, but the height of the self-luminescence circuit of at least part position layer 123 is equal with the height of transparent area).And light
Line can from transparent area through self-luminescence circuit layer 123, it is ensured that light can from lower to lower transmission light-emitting display panel
120, and then ensure that display module can carry out fingerprint image acquisition.As shown in the above, light is obliquely through described
During light-emitting display panel 120, generally comprise through the first transparent substrates 121, transparent area and the second transparent substrates 122.
The luminescent layer of display pixel cells 1231 and driving OLED TFT, the driving structure such as metal wire and storage capacitance are
Metal level is needed, therefore, corresponding alternatively non-transparent district is constituted.And the gap between them could be arranged to transparent area, that is, exist
Ensure on the basis of corresponding construction and function, the other structures of display pixel cells 1231 can use translucent construction system as far as possible
Make, so that more light can pass through OLED display panel, (this passes through the height being often referred to from display pixel cells 1231
Degree is through height is generally alternatively referred to as thickness).
It is not that whole area is all alternatively non-transparent from top to bottom in the alternatively non-transparent district of display pixel cells 1231.But, this
The bottom in a little areas has alternatively non-transparent structure (illustrating in Fig. 1 with the wedged bottom line part in each display pixel cells 1231).I.e. non-
The structure of the superstructures such as transparent area luminescent layer is still printing opacity, for example, the structure printing opacity above luminescent layer, therefore, lights
The light that layer is sent can be up to eyes of user, so as to ensure that OLED display panel is shown.
Optical fingerprint sensor 130 can include fingerprint sensing circuit layer (not shown) and underlay substrate (not shown).
In the case of one kind, the fingerprint sensing circuit layer is located between the second transparent substrates 122 and the underlay substrate, now, optics
Fingerprint sensor 130 can be with TFT (Thin Film Transistor, thin film transistor (TFT)) based on glass or plastic base
The imaging sensor that technique makes, i.e. underlay substrate can be glass or plastics, and optical fingerprint sensor 130 can also be based on
Silicon substrate and the optical sensor for using CMOS technology making, i.e. underlay substrate are silicon substrate；In another case, the lining
Substrate is located between second transparent substrates 122 and the fingerprint sensing electric layer, now, and the underlay substrate is printing opacity material
Matter, such as glass or plastic base, optical fingerprint sensor 130 can be based on glass or plastic base, the back-illuminated of TFT techniques
Formula imaging sensor.
The fingerprint sensing circuit layer of optical fingerprint sensor 130 includes multiple sensitive pixel elements (photosensitive pixel list
Had been mentioned before member, not shown).Each sensitive pixel elements include light sensitive diode or other light-sensitive devices, refer to accordingly
Line reflection light can be received by photo-sensitive cell.
Point-like backlight 140 can be a LED.The light of the LED can be black light, purple light, blueness
Light, green light, sodium yellow, red light, near infrared light or white light.Point-like backlight 140 can also be two or more LED,
Two or more LED can be generally evenly distributed in the different sides of light-emitting display panel 120.
Light-emitting display panel 120 and optical fingerprint sensor 130 can be direct stackings, and " directly stacking " refers to optics and referred to
Line sensor 130 and light-emitting display panel 120 at least part are contacted, when optical fingerprint sensor 130 and self-luminous are shown
Panel 120 it is overall in flat flat structure up and down when, both can be precisely that be laminated form as shown in fig. 1.
It can also be pasted between light-emitting display panel 120 and optical fingerprint sensor 130 using optical cement.Optics
Glue makes to avoid the presence of air as far as possible between the light-emitting display panel 120 and the optical fingerprint sensor 130, further carries
The optical property of high module.
It should be noted that in other embodiments, can have between optical fingerprint sensor and light-emitting display panel
Filter layer, the filter layer can at least partly pass through the light that point-like backlight (such as LED) is sent, while described filter
Metafiltration photosphere can absorb or reflect the light of other wavelength, and to prevent other light, (such as ambient light or self-luminous are shown
The display light of panel) have a negative impact to fingerprint recognition.
Protective layer 110 can be tlat substrate, or the other shapes with flat part.The material of protective layer 110
Can be transparent material, specific material can be other beyond unorganic glass or lucite or lucite
Plastic products.
As shown in figure 1, having interval (not marking) between the surface of point-like backlight 140 and groove 111, this interval is utilized
Size can adjust the light of point-like backlight 140 to the incident angle of protective layer 110.The presence at the interval, illustrates point-like
Usually not directly contacted between the surface of backlight 140 and groove 111.
But in other embodiments, point-like backlight can also be set to be contacted with the surface of groove.
In the present embodiment, the light that point-like backlight 140 is sent enters protective layer 110 from the respective surfaces of groove 111,
Reach behind the upper surface of protective layer 110, the interface that can be formed in finger print and the upper surface of protective layer 110 occurs reflection and rolled over
The optical phenomena such as penetrate, produce corresponding reflection light；Reflection light returns to protective layer 110 obliquely, and through protective layer 110
Light-emitting display panel 120 is reached, light can pass through light-emitting display panel 120 from top to bottom, and therefore, reflection light is final
The optical fingerprint sensor 130 can be reached, and by the sensitive pixel elements (photosensitive pixel in optical fingerprint sensor 130
Elements reference subsequent content) receive, so as to realize fingerprint image acquisition, realize fingerprint identification function.
The light that the present embodiment control point-like backlight 140 is sent has propagation angle (i.e. point-like backlight obliquely
140 light sent are initially up or propagate obliquely, without directly being propagated to light-emitting display panel 120 downwards), from
And ensure that the light that point-like backlight 140 is sent must have passed through " in the upper surface of protective layer 200 and the interface of finger print
The optical phenomena such as reflection and refraction occurs for place " after, enter back into light-emitting display panel 120.That is, the present embodiment avoids depositing
In such a light：This light is sent by point-like backlight 140, and after point-like backlight 140 is sent, without "
The optical phenomena such as reflection and refraction occurs for the upper surface of protective layer 200 and the interface of finger print ", just it is directly entered self-luminous and shows
Show panel 120.This light does not carry information in fingerprint.If this light and other light are together shown through self-luminous
Panel 120 and reach optical fingerprint sensor 130, then be able to can cause optical fingerprint sensor 130 obtain fingerprint image become mould
Paste.Pass through above-mentioned control, it is to avoid this light, then can improve the fingerprint image quality finally obtained.
In the display module that the present embodiment is provided, optical fingerprint sensor 130 and light-emitting display panel 120 are respectively positioned on
The lower section of protective layer 110, protective layer 110 has upwardly recessed groove 111, and point-like backlight 140 is arranged in protective layer 110
In groove 111, so that the integrated model of whole display module is simpler, thickness can be made to thinner.
When the light that point-like backlight 140 is sent enters protective layer 110 by the respective surfaces of groove 111, respective ray of light
It is acute angle with being used to contact angle formed by the region of fingerprint in the upper surface of protective layer 110.Now, point-like backlight 140 is sent
Light can occur to reflect at the upper surface of protective layer 110 and the interface of finger print by corresponding offset and refraction etc. is existing
As, and most of effectively reflection light is irradiated in the photosensitive region of optical fingerprint sensor 130, therefore, entirely show mould
Group does not need the structures such as light guide plate, it becomes possible to realize the identification of fingerprint image, forms clearly fingerprint image, and simplification finishes
Structure, reduces cost.
Point-like backlight 140 is located in the groove 111 in protective layer 110, therefore, and point-like backlight 140 arrives protective layer 110
The distance of upper surface is smaller, when this also make it that the light of point-like backlight 140 reaches 110 upper surface of protective layer, and perpendicular to guarantor
Angle increase between the normal of the upper surface of sheath 110；On the other hand, it can be reflected when light enters first surface, from
And above-mentioned angle can be increased again.The angle increase brings following two advantages again：First, it is reflected into optical finger print biography
The ray regions width increase of sensor, can better profit from the photosensitive region of optical fingerprint sensor, form area bigger
Fingerprint image；Second, it is irradiated to finger print valley and some light at the interface of the upper surface of protective layer 110, Neng Gou
It can be totally reflected in the upper surface of protective layer 110 and the interface of air, and be irradiated to finger print spine and the upper table of protective layer 110
The light at the interface of face contact, then the optical phenomena, now, the different positions of finger print image such as normally reflected and reflected
Putting (i.e. paddy position and ridge position) contrast can be obviously improved, and fingerprint image quality is improved.
Point-like backlight 140 is arranged on the lower section of protective layer 110 by the present embodiment, and is provided in light-emitting display panel
In the groove 111 of 120 oblique uppers, and optical fingerprint sensor 130 is arranged on the lower section of light-emitting display panel 120, therefore, point-like
Backlight 140 is also in the outside of optical fingerprint sensor 130 (oblique upper).In point-like backlight 140 simultaneously positioned at spontaneous
On the premise of light display panel 120 and the side of optical fingerprint sensor 130, set again the light that point-like backlight 140 is sent from
The surface of groove 111 enters protective layer 110, and now, the light that point-like backlight 140 is sent need not pass through light-emitting display panel
120 and optical fingerprint sensor 130 be put into protective layer 110 so that the collection for finger print image, that is, realize opponent
Refer to the collection of fingerprint image, the utilization rate of respective ray of light is improved, and improves what final optical fingerprint sensor 130 can be received
Semaphore, the fingerprint image collected is clear, and therefore, display module is integrated with good fingerprint identification function.
In the display module that the embodiment of the present invention is provided, it can be realized by corresponding application method in display module
Viewing area in gather fingerprint image, so as to reduce the electronic product apparent size using this display panel, improve
The screen accounting of electronic product, improving the appearance looks elegant degree of electronic product (can for example improve the screen accounting of mobile phone productses, improve hand
The appearance looks elegant degree of machine product).For example, by display relative with the optical fingerprint sensor in the light-emitting display panel
Region is defined as the first viewing area, and the viewing area of other parts is defined as the second viewing area；When the optical finger print is passed
When sensor carries out fingerprint image acquisition work, first viewing area is controlled to stop showing work or show specific picture.When
When the optical fingerprint sensor carries out fingerprint image acquisition work, control second viewing area to show and adopted with fingerprint image
Collect the associated information of work.This application method enables to display function and fingerprint identification function to cooperate, real
Existing more preferable user experience.
The application method can also further open up the application scenarios of fingerprint identification function, for example, being passed in optical finger print
Before sensor is not operated, first viewing area is made to show corresponding display icon, instruction user places a digit into figure
In mark.After user places a digit into display figure target area, using existing display panel itself or the touch-control work(of tyre
Can, perceive user and placed a digit into the first viewing area, so as to control optical fingerprint sensor to enter work shape
State, now, the fingerprint image of pressing fingerprint can be gathered by the optical fingerprint sensor below the first viewing area, complete fingerprint image
As acquisition function, and it is possible to further apply to be identified with the existing fingerprint image of internal reservoir, further use
The functions such as row encryption/unblock.
Another embodiment of the present invention provides another display module, refer to Fig. 2.
The display module includes protective layer 210, light-emitting display panel 220, optical fingerprint sensor 230 and the point-like back of the body
Light source 240.Light-emitting display panel 220 is located at the lower section of protective layer 210.Light can pass through light-emitting display panel from top to bottom
220.The lower surface of protective layer 210 has a upwardly recessed groove 211, groove 211 be located at light-emitting display panel 220 it is oblique on
Side.The part of point-like backlight 240 be located at groove 211 in, the light that point-like backlight 240 is sent from groove 211 one of them
Surface enters protective layer 210, and the light is as shown in the arrow in Fig. 2 obliquely.Arrow in Fig. 2 obliquely then represents corresponding
Reflection light.
Light-emitting display panel 220 includes the first transparent substrates 221, the second transparent substrates 222 and the first transparent substrates
221 and the second self-luminescence circuit layer 223 between transparent substrates 222.Optical fingerprint sensor 230 is located at the second transparent substrates
222 lower sections.Self-luminescence circuit layer 223 in light-emitting display panel 220 includes multiple display pixel cells 2231.Each display
Pixel cell 2231 includes at least one alternatively non-transparent district and at least one transparent area.The structure enables light saturating from top to bottom
Cross light-emitting display panel 220.
Apart from minimum surface it is first surface (not marking) to light-emitting display panel 220 in the surface of groove 211,
The light that point-like backlight 240 is sent enters protective layer 210 from the first surface.It should be noted that each surface is to light
The distance of fingerprint sensor is learned, is the centre of surface on each surface to the distance of optical fingerprint sensor.
The top surface of groove 211 is parallel with the upper and lower surface of protective layer 210.The first surface is flat
Face, and the lower surface of the top surface and protective layer 210 of the first surface and groove 211 angle all be obtuse angle, i.e., this
Shi Suoshu first surfaces are clinoplain, as shown in Figure 2.The first surface of this inclined plane more contributes to more light
The upper surface of protective layer 210 is reached with bigger incidence angle, so as to finally enable optical fingerprint sensor 230 utilize Geng great areas
Domain is used for fingerprint image acquisition, and the reflection light obtained is the more obvious light of contrast, therefore, display module
Fingerprint recognition performance is improved.
In the present embodiment, the top surface of groove 211 have with point-like backlight 240 just to light shield layer 250.In the phase
Answer position that light shield layer 250 is set, in order to block point-like backlight 240 and do not realized by user.
Another embodiment of the present invention provides another display module, refer to Fig. 3.
The display module includes protective layer 310, light-emitting display panel 320, optical fingerprint sensor 330 and the point-like back of the body
Light source 340.Light-emitting display panel 320 is located at the lower section of protective layer 310.Light can pass through light-emitting display panel from top to bottom
320.The lower surface of protective layer 310 has a upwardly recessed groove 311, groove 311 be located at light-emitting display panel 320 it is oblique on
Side.The part of point-like backlight 340 be located at groove 311 in, the light that point-like backlight 340 is sent from groove 311 one of them
Surface enters protective layer 310, and the light is as shown in the arrow in Fig. 3 obliquely.Arrow in Fig. 3 obliquely then represents corresponding
Reflection light.
Light-emitting display panel 320 includes the first transparent substrates 321, the second transparent substrates 322 and the first transparent substrates
321 and the second self-luminescence circuit layer 323 between transparent substrates 322.Optical fingerprint sensor 330 is located at the second transparent substrates
322 lower sections.Self-luminescence circuit layer 323 in light-emitting display panel 320 includes multiple display pixel cells 3231.Each display
Pixel cell 3231 includes at least one alternatively non-transparent district and at least one transparent area.The structure enables light saturating from top to bottom
Cross light-emitting display panel 320.
Apart from minimum surface it is first surface (not marking) to light-emitting display panel 320 in the surface of groove 311,
The light that point-like backlight 340 is sent enters protective layer 310 from the first surface.It should be noted that each surface is to light
The distance of fingerprint sensor is learned, is the centre of surface on each surface to the distance of optical fingerprint sensor.
The top surface of groove 311 is parallel with the upper and lower surface of protective layer 310.
The first surface is concave curved surface, and the top edge of the concave curved surface and the top surface of groove are connected, the concave curved
The lower edge in face and the lower surface of protective layer are connected.
This concave curved surface first surface is more prone to processing, and the yield of protective layer 310 is higher, and cost is lower.
In the present embodiment, in the upper surface of protective layer 310, with point-like backlight 340 just to part there is light shield layer
350.Light shield layer 350 is set in the relevant position, in order to block point-like backlight 340 and do not realized by user.
In other embodiments, can the upper surface of the protective layer and the point-like backlight just to part have and hide
Photosphere, and the top surface of the groove also has light shield layer.
Another embodiment of the present invention provides another display module, refer to Fig. 4.
The display module includes protective layer 410, light-emitting display panel 420, optical fingerprint sensor 430 and the point-like back of the body
Light source 440.Light-emitting display panel 420 is located at the lower section of protective layer 410.Light can pass through light-emitting display panel from top to bottom
420.The lower surface of protective layer 410 has a upwardly recessed groove 411, groove 411 be located at light-emitting display panel 420 it is oblique on
Side.The part of point-like backlight 440 be located at groove 411 in, the light that point-like backlight 440 is sent from groove 411 one of them
Surface enters protective layer 410, and the light is as shown in the arrow in Fig. 4 obliquely.Arrow in Fig. 4 obliquely then represents corresponding
Reflection light.
Light-emitting display panel 420 includes the first transparent substrates 421, the second transparent substrates 422 and the first transparent substrates
421 and the second self-luminescence circuit layer 423 between transparent substrates 422.Optical fingerprint sensor 430 is located at the second transparent substrates
422 lower sections.Self-luminescence circuit layer 423 in light-emitting display panel 420 includes multiple display pixel cells 4231.Each display
Pixel cell 4231 includes at least one alternatively non-transparent district and at least one transparent area.The structure enables light saturating from top to bottom
Cross light-emitting display panel 420.
Apart from minimum surface it is first surface (not marking) to light-emitting display panel 420 in the surface of groove 411,
The light that point-like backlight 440 is sent enters protective layer 410 from the first surface.It should be noted that each surface is to light
The distance of fingerprint sensor is learned, is the centre of surface on each surface to the distance of optical fingerprint sensor.
The top surface of groove 411 is parallel with the upper and lower surface of protective layer 410.The first surface is flat
Face, and the lower surface of the top surface and protective layer 410 of the first surface and groove 411 angle all be obtuse angle, i.e., this
Shi Suoshu first surfaces are clinoplain, as shown in Figure 4.The first surface of this inclined plane more contributes to more light
The upper surface of protective layer 410 is reached with bigger incidence angle, so as to finally enable optical fingerprint sensor 430 utilize Geng great areas
Domain is used for fingerprint image acquisition, and the reflection light obtained is the more obvious light of contrast, therefore, display module
Fingerprint recognition performance is improved.
The top surface of groove 411 have with point-like backlight 440 just to light shield layer 450.Set in the relevant position
Light shield layer 450, in order to block point-like backlight 440 and do not realized by user.
The first surface has anti-reflection film 460, and the light that anti-reflection film 460 can increase point-like backlight 440 enters guarantor
The ratio of sheath 410.
There is thickening layer 470 between light-emitting display panel 420 and protective layer 410.Thickening layer 470 can be optical cement,
I.e. light-emitting display panel 420 can be pasted onto the lower section of protective layer 410.The material of the optical cement layer can be specifically temperature-sensitive light
Learn glue-line, Photosensitive optical glue-line or optical double-sided adhesive tape band.The presence of the optical cement can cause protective layer and self-luminous to show
Avoid the presence of air as far as possible between panel, further improve the optical property of module.
In other embodiments, thickening layer can not be optical cement, but other solid substrates, and it is possible to pass through phase again
Thickening layer is bonded together by the glue-line answered with protective layer and light-emitting display panel.Now thickening layer can be without electrical work(
The structure of energy, can also be the touch sensitive layer with transparency electrode.
In other embodiments, light-emitting display panel itself is integrated with touch sensing function.
It should be noted that can also have optical cement between light-emitting display panel and optical fingerprint sensor, that is,
Light-emitting display panel can be pasted together with optical fingerprint sensor by optical cement, now optical fingerprint sensor glues
It is attached to below light-emitting display panel.
Another embodiment of the present invention provides another display module, refer to Fig. 5.
The display module includes protective layer 510, light-emitting display panel 520, optical fingerprint sensor 530 and the point-like back of the body
Light source (is not marked).Light-emitting display panel 520 is located at the lower section of protective layer 510.Light can be aobvious through self-luminous from top to bottom
Show panel 520.The lower surface of protective layer 510 has two upwardly recessed grooves, respectively groove 511 and groove 512, groove
511 and groove 512 be respectively positioned on the oblique upper of light-emitting display panel 520.
In the present embodiment, the point-like backlight is two LEDs, respectively LED 541 and LED 542.LED
541 and LED 542 respectively positioned at the left side and right edge of light-emitting display panel 520, therefore they are evenly distributed.
In other embodiments, the point-like backlight is two or more LED, the LED be evenly distributed on it is described from
The different sides of light emitting display panel.
The part of LED 541 is located in groove 511, and the light that LED 541 is sent enters from one of surface of groove 511
Enter protective layer 510, the light is as shown in the arrow in Fig. 5 obliquely from left to right.Arrow in Fig. 5 from left to right obliquely
Then represent corresponding reflection light.
The part of LED 542 is located in groove 512, and the light that LED 542 is sent enters from one of surface of groove 512
Enter protective layer 510, the light is as shown in the arrow in Fig. 5 obliquely from right to left.Arrow in Fig. 5 from right to left obliquely
Then represent corresponding reflection light.
Light-emitting display panel 520 includes the first transparent substrates 521, the second transparent substrates 522 and the first transparent substrates
521 and the second self-luminescence circuit layer 523 between transparent substrates 522.Optical fingerprint sensor 530 is located at the second transparent substrates
522 lower sections.Self-luminescence circuit layer 523 in light-emitting display panel 520 includes multiple display pixel cells 5231.Each display
Pixel cell 5231 includes at least one alternatively non-transparent district and at least one transparent area.The structure enables light saturating from top to bottom
Cross light-emitting display panel 520.
Apart from minimum surface it is first surface to light-emitting display panel 520 in the surface of groove 511 (groove 512)
(not marking), the light that LED 541 (LED 542) is sent enters protective layer 510 from the first surface.Need explanation
It is, the distance on each surface to optical fingerprint sensor to be the centre of surface on each surface to the distance of optical fingerprint sensor.
The top surface of groove 511 (groove 512) is parallel with the upper and lower surface of protective layer 510.Described first
Surface is plane, and the top surface and the lower surface of protective layer 510 of the first surface and groove 511 (groove 512)
Angle is all right angle, i.e., now the first surface is perpendicular, as shown in Figure 5.This first surface in perpendicular
More light are more contributed to reach the upper surface of protective layer 510 with bigger incidence angle, so as to finally sense optical finger print
Device 530 can utilize bigger region to be used for fingerprint image acquisition, and the reflection light obtained is that contrast is more obvious
Light, therefore, the fingerprint recognition performance of display module are improved.
It is accordingly interior that more structures, property and advantage for providing display module about the present embodiment refer to previous embodiment
Hold.
Another embodiment of the present invention provides another display module, refer to Fig. 6.Different from Fig. 1 to Fig. 5, Fig. 6 is to face upward
Depending on schematic diagram, i.e. Fig. 6 in order to show the structure below protective layer, it is shown that in terms of protective layer following table upwardly surface direction
Schematic diagram, in such manner, it is possible to see corresponding point-like backlight, optical fingerprint sensor, light-emitting display panel and protective layer
Etc. structure.Therefore, Fig. 6 cross-section structure may be referred to Fig. 1 to Fig. 5, in turn, and Fig. 1 to Fig. 5 structure of looking up may be referred to figure
6。
Looked up shown in Fig. 6 in structure：The display module includes protective layer 610, light-emitting display panel 620, optics and referred to
Line sensor 630 and point-like backlight 640；Protective layer 610 is located at bottom, and the top of protective layer 610 is light-emitting display panel
620, the top of light-emitting display panel 620 is optical fingerprint sensor 630, and point-like backlight 640 is equally to be located at protective layer
610 tops, and be positioned at light-emitting display panel 620 and the side of optical fingerprint sensor 630.Have in protective layer 610 recessed
Groove 611, groove 611 is located at the side of light-emitting display panel 620 and optical fingerprint sensor 630.Point-like backlight 640 is located at
In groove 611.
When carrying out cutting to the structure of looking up shown in Fig. 6, and when being put by Fig. 1 to Fig. 5, then it will also be seen that
In the display module that the present embodiment is provided：Light-emitting display panel 620 is located at the lower section of protective layer 610；Optical fingerprint sensor
630 are located at the lower section of light-emitting display panel 620；The lower surface of protective layer 610 has upwardly recessed groove 611, and groove 611 is located at
The oblique upper of light-emitting display panel 620；Point-like backlight 640 is located in groove 611, the light that point-like backlight 640 is sent
Enter protective layer 610 from one of surface of groove 611.It can combine referring to figs. 1 to Fig. 5 corresponding contents.
Light-emitting display panel 620 includes the first transparent substrates (not shown), the second transparent substrates (not shown) and the
Self-luminescence circuit layer (not shown) between one transparent substrates and the second transparent substrates；It is spontaneous in light-emitting display panel 620
Optical circuit layer includes multiple display pixel cells (not shown)；Each display pixel cells are including at least one alternatively non-transparent district and extremely
A few transparent area.It can combine referring to figs. 1 to Fig. 5 corresponding contents.
Please continue to refer to Fig. 6, point-like backlight 640 is four LEDs (not marking), and four LEDs are evenly distributed on institute
State the same side of optical fingerprint sensor.Groove 611 is larger, can cause four LEDs are at least partially disposed at recessed simultaneously
In groove 611, now, four LEDs are generally evenly distributed in groove 611.
The correspondence of optical fingerprint sensor 630 includes the indicative of local optical induction region (not marking) of four, in plane shown in Fig. 6
In, use three dotted lines by 630 points of optical fingerprint sensor for four indicative of local optical induction regions.One LED correspondence one
Indicative of local optical induction region.
Though do not shown in Fig. 6, display module also includes touch-control structure, and the touch-control structure includes the part of four
Touch area, (a local touch area also corresponds to one for a local touch area of indicative of local optical induction region correspondence one
Indicative of local optical induction region).In the bottom plan shown in Fig. 6, if shown, corresponding part touch area drawn game
Portion optical sensor region can be completely superposed.
By said structure, in the display module that the present embodiment is provided, it is possible to use a LED is used as a part
The light source in optical sensor region, meanwhile, judge that finger is contacted in which local Touch Zone using corresponding local touch area
Domain, is controlled corresponding indicative of local optical induction region and LED is operated, and realizes the collection to finger fingerprint image.This
In the mode of kind, due to only using some LED therein, and some indicative of local optical induction region every time, therefore, it is not required to
Want whole optical fingerprint sensor all to carry out fingerprint collecting, not only increase the picking rate of fingerprint image, and reduce power consumption.
It should be noted that above-mentioned touch-control structure can be capacitance type touch-control structure, capacitance type touch-control structure can be position
(protective layer lower surface is for example fitted or is produced on, in another example laminating or making between protective layer and light-emitting display panel
In light-emitting display panel upper surface), capacitance type touch-control structure can also be integrated in inside light-emitting display panel.
In other embodiments, point-like backlight can also be two, three or more than five LEDs, and these LEDs are equal
The even same side for being distributed in optical fingerprint sensor.Accordingly, the number of indicative of local optical induction region and local touch area
It is equal with the number of LED, and specific corresponding to mode is also to correspond.Refer to above-mentioned corresponding contents.
In other embodiment, each indicative of local optical induction region has multiple local touch areas, so as to improve detection hand
Refer to the precision of the position of pressing, improve the degree of accuracy of positioning finger pressing.
It is accordingly interior that more structures, property and advantage for providing display module about the present embodiment refer to previous embodiment
Hold.
Another embodiment of the present invention provides another display module, refer to Fig. 7.Different from Fig. 1 to Fig. 5, Fig. 7 is to face upward
Depending on schematic diagram, i.e. Fig. 7 in order to show the structure below protective layer, it is shown that in terms of protective layer following table upwardly surface direction
Schematic diagram, in such manner, it is possible to see corresponding point-like backlight, optical fingerprint sensor, light-emitting display panel and protective layer
Etc. structure.Therefore, Fig. 7 cross-section structure may be referred to Fig. 1 to Fig. 5, in turn, and Fig. 1 to Fig. 5 structure of looking up may be referred to figure
7。
Looked up shown in Fig. 7 in structure：The display module includes protective layer 710, light-emitting display panel 720, optics and referred to
Line sensor 730 and point-like backlight (point-like backlight is not marked individually, and point-like backlight includes follow-up six LEDs)；Protect
Sheath 710 is located at bottom, and the top of protective layer 710 is light-emitting display panel 720, and the top of light-emitting display panel 720 is light
Fingerprint sensor 730 is learned, and the point-like backlight is equally to be located at the top of protective layer 710, and shown positioned at self-luminous
Panel 720 and the side of optical fingerprint sensor 730.There is groove 711, groove 711 is located at self-luminous display surface in protective layer 710
The side of plate 720 and optical fingerprint sensor 730.The point-like backlight is located in groove 711.
When carrying out cutting to the structure of looking up shown in Fig. 7, and when being put by Fig. 1 to Fig. 5, then it will also be seen that
In the display module that the present embodiment is provided：Light-emitting display panel 720 is located at the lower section of protective layer 710；Optical fingerprint sensor
730 are located at the lower section of light-emitting display panel 720；The lower surface of protective layer 710 has upwardly recessed groove 711, and groove 711 is located at
The oblique upper of light-emitting display panel 720；The point-like backlight is located in groove 711, the light that the point-like backlight is sent
Line enters protective layer 710 from one of surface of groove 711.It can combine referring to figs. 1 to Fig. 5 corresponding contents.
Light-emitting display panel 720 includes the first transparent substrates (not shown), the second transparent substrates (not shown) and the
Self-luminescence circuit layer (not shown) between one transparent substrates and the second transparent substrates；It is spontaneous in light-emitting display panel 720
Optical circuit layer includes multiple display pixel cells (not shown)；Each display pixel cells are including at least one alternatively non-transparent district and extremely
A few transparent area.It can combine referring to figs. 1 to Fig. 5 corresponding contents.
As shown in fig. 7, the point-like backlight is six LEDs, respectively LED a, LED b, LED c, LED
D, LED e and LED f, six LEDs are evenly distributed on the same side of optical fingerprint sensor 730, and are respectively positioned on recessed
In groove 711.
And the correspondence of optical fingerprint sensor 730 includes 14 indicative of local optical induction regions, respectively indicative of local optical senses
Region 1-14.In plane shown in Fig. 7, use 13 dotted lines by 730 points of optical fingerprint sensor for 14 indicative of local optical
Induction region.One LED four indicative of local optical induction region of correspondence.
Specifically, in the present embodiment, LED a correspondence indicative of local optical induction region 1-4, LED b correspondence indicative of local optical senses
Answer region 3-6, LED c correspondence indicative of local optical induction region 5-8, LED d correspondence indicative of local optical induction region 7-10, LED e
Correspondence indicative of local optical induction region 9-7, LED f correspondence indicative of local optical induction region 11-14.LED a to LED f correspondences area
The width in domain is as shown in Ra to Rf in Fig. 7, and these width can prove above-mentioned LED pass corresponding with indicative of local optical induction region
System, i.e., the one continuous four indicative of local optical induction region of LED correspondence.Now, by taking adjacent LED a and LED b as an example,
Their corresponding described indicative of local optical induction region parts are identical, i.e., they all correspond to indicative of local optical induction region 3-4.Meanwhile,
" part is identical " illustrates that each of which also corresponds to different indicative of local optical induction regions, such as LED a correspondence indicative of local optical sensings
Region 1-2, LED b correspondence indicative of local optical induction region 5-6.
Meanwhile, though do not shown in Fig. 7, display module also includes touch-control structure, and the touch-control structure includes 14
Local touch area, indicative of local optical induction region correspondence one local touch area, i.e. indicative of local optical induction region and
Local touch area is corresponded.In the bottom plan shown in Fig. 7, if local touch area is shown, accordingly
Local touch area and local optical sensor region are completely superposed.Correspondence indicative of local optical sense can be controlled using local touch area
The working condition (switching for example worked with the two states of inoperative) in region is answered, previous embodiment corresponding contents are referred to.
By said structure, in the display module that the present embodiment is provided, LED number is less than the number of the indicative of local optical induction region
Mesh, one LED of multiple indicative of local optical induction region correspondences, each multiple adjacent indicative of local optical sense of the LED correspondence
Answer region, and the corresponding indicative of local optical induction region part of adjacent two LEDs is identical.
The present embodiment why so that said structure and region be correspondingly arranged, be because can by the image-forming principle of the present invention
Know：Display module can only use a LED is luminous (to be had if two LEDs are used simultaneously in fingerprint imaging, every time
Interference, makes image blur)；And if part phase is not present in the corresponding indicative of local optical induction region of two adjacent LEDs lamp
Meanwhile, when finger is pressed against the boundary of two indicative of local optical induction regions, then usually require to be imaged twice, acquisition is not
Same partial fingerprint image, then they are synthesized together.But, the present embodiment is by setting more multiple LEDs, so as to reduce
Distance between LED.Meanwhile, by further segmenting indicative of local optical induction region, increase the number of indicative of local optical induction region,
So as to reach：Multiple adjacent indicative of local optical induction region one LED of correspondence, and two adjacent LEDs are corresponding
The indicative of local optical induction region part is identical.Now, according to finger pressing position, only need to open and finger pressing position every time
Put immediate LED and carry out fingerprint image acquisition, and total energy is adopted using some most suitable LED and then fingerprint image
Collection, it is Polaroid with regard to corresponding fingerprint image can be collected therefore, it is possible to realize.Therefore, further increase collecting efficiency and
Collection effect.
In order to which above-mentioned purpose is better achieved, the spacing between LED can also be made wide much smaller than the pressing covering of finger
Spend (can for example make LED is smaller than 5mm).
It is accordingly interior that more structures, property and advantage for providing display module about the present embodiment refer to previous embodiment
Hold.
Have each embodiment of this specification mutually can replacing and being complementary to one another part more.Although present disclosure is as above,
The present invention is not limited to this.Any those skilled in the art, without departing from the spirit and scope of the present invention, can make various
Change with changing, therefore protection scope of the present invention should be defined by claim limited range.
Claims (15)
1. a kind of display module, including：
Protective layer；
Light-emitting display panel, the light-emitting display panel is located at below the protective layer；
Characterized in that,
Light can pass through the light-emitting display panel from top to bottom；
The protective layer lower surface has a upwardly recessed groove, the groove be located at the light-emitting display panel it is oblique on
Side；
The display module also includes：
Optical fingerprint sensor, the optical fingerprint sensor is located at below the light-emitting display panel；
Point-like backlight, the point-like backlight is at least partially disposed in the groove, the light that the point-like backlight is sent
Enter the protective layer from least one of which surface of the groove.
2. display module as claimed in claim 1, it is characterised in that the light-emitting display panel includes the first printing opacity base
Self-luminescence circuit layer between plate, the second transparent substrates and the first transparent substrates and the second transparent substrates；The spontaneous photoelectricity
Road floor includes multiple display pixel cells；Each display pixel cells include at least one alternatively non-transparent district and at least one is saturating
Light area.
3. display module as claimed in claim 1, it is characterised in that the optical fingerprint sensor and the self-luminous are shown
There is filter layer between panel.
4. display module as claimed in claim 1, it is characterised in that in the surface of the groove, shows to the self-luminous
The minimum surface of panel distance is first surface, and the light that the backlight is sent enters the protection from the first surface
Layer.
5. display module as claimed in claim 4, it is characterised in that the top surface of the groove is upper with the protective layer
Surface is parallel with lower surface；The first surface is plane, the top surface of the first surface and the groove and described
The angle of the lower surface of protective layer is all right angle.
6. display module as claimed in claim 4, it is characterised in that the top surface of the groove is upper with the protective layer
Surface is parallel with lower surface；The first surface is plane, the top surface of the first surface and the groove and described
The angle of the lower surface of protective layer is all obtuse angle.
7. display module as claimed in claim 4, it is characterised in that the first surface is concave curved surface, the concave curved surface
Top edge is connected with the top surface of the groove, and the lower edge of the concave curved surface is connected with the lower surface of the protective layer.
8. display module as claimed in claim 4, it is characterised in that the first surface has anti-reflection film, the anti-reflection film
The light that the backlight can be increased enters the ratio of the protective layer.
9. the display module as described in claim 1 any one, it is characterised in that in the upper surface of the protective layer, with institute
State backlight just to part there is light shield layer；Or, the top surface of the groove has light shield layer；Or, the protection
Upper surface and the backlight of layer just to part there is light shield layer, and the top surface of the groove also has light shield layer.
10. display module as claimed in claim 1, it is characterised in that the light-emitting display panel and the protective layer it
Between have thickening layer.
11. the display module as described in claim 1 to 10 any one, it is characterised in that the point-like backlight is one
LED；Or, the point-like backlight is two or more LED, and the groove is multiple, and a LED is located at one
In the groove.
12. the display module as described in claim 1 to 10 any one, it is characterised in that the point-like backlight is two
Above LED, described two above LEDs are evenly distributed in the same groove.
13. display module as claimed in claim 12, it is characterised in that the optical fingerprint sensor includes more than two
Indicative of local optical induction region, one indicative of local optical induction region of a LED correspondence；The display module also includes
Touch-control structure, the touch-control structure includes more than two local touch areas, an indicative of local optical induction region correspondence
One local touch area.
14. display module as claimed in claim 13, it is characterised in that the optical fingerprint sensor includes more than three
Indicative of local optical induction region, the LED number is less than the number of the indicative of local optical induction region；The display module is also wrapped
Touch-control structure is included, the touch-control structure includes the local touch area of more than three, an indicative of local optical induction region pair
Answer a local touch area.
15. display module as claimed in claim 14, it is characterised in that each described multiple adjacent institute of LED correspondence
State indicative of local optical induction region；And the corresponding indicative of local optical induction region part of adjacent two LEDs is identical.
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| CN201710321343.1A CN107145868A (en) | 2017-05-09 | 2017-05-09 | Display module |
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Application publication date: 20170908 |