CN111290522A - Fingerprint module under screen, display driving chip and mobile terminal - Google Patents
Fingerprint module under screen, display driving chip and mobile terminal Download PDFInfo
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- CN111290522A CN111290522A CN201811503520.9A CN201811503520A CN111290522A CN 111290522 A CN111290522 A CN 111290522A CN 201811503520 A CN201811503520 A CN 201811503520A CN 111290522 A CN111290522 A CN 111290522A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/94—Hardware or software architectures specially adapted for image or video understanding
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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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- 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
- G06V40/1365—Matching; Classification
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Abstract
The utility model discloses a fingerprint module, display driver chip and mobile terminal under screen belongs to the mobile terminal field. Fingerprint module under the screen includes: the fingerprint identification device comprises a display screen, a display driving chip and a fingerprint identification component; the display screen is electrically connected with the display driving chip, and the display driving chip is arranged below the display screen; the fingerprint identification component is arranged below the display driving chip; the display driving chip is provided with a first opening; the fingerprint identification component is configured to receive the light rays passing through the display screen and the first opening in sequence and then carry out fingerprint identification. This is disclosed through setting up first trompil on showing drive chip, sets up the fingerprint identification subassembly in the below of first trompil, because show drive chip and be close to mobile terminal's bottom in the long direction along mobile terminal, consequently set up the fingerprint identification subassembly under showing drive chip and be close to mobile terminal's bottom, make mobile terminal can set up the great high capacity battery of volume.
Description
Technical Field
The disclosure relates to the field of mobile terminals, in particular to a fingerprint module under a screen, a display driving chip and a mobile terminal.
Background
The fingerprint identification technology has been widely applied to services such as application unlocking and mobile payment of mobile terminals. Mobile terminal accessible sets up the fingerprint identification subassembly in it and realizes fingerprint identification, and the fingerprint identification subassembly can divide into optics fingerprint identification subassembly, electric capacity fingerprint identification subassembly and pressure fingerprint identification subassembly etc. according to the principle.
The fingerprint under the screen is a technology that a fingerprint identification component is arranged below a display screen of the mobile terminal, and the fingerprint under the screen can be identified by arranging an optical fingerprint identification component below the display screen of the mobile terminal. After the user touches the display screen of the terminal, light generated in the display screen can irradiate the fingerprint texture of the user and is reflected to the fingerprint identification assembly located below the display screen to identify the fingerprint of the user.
Generally, a Flexible Printed Circuit (FPC) for connecting the display screen and a main Circuit board of the mobile terminal is further disposed below the display screen, and in order to enable the fingerprint identification module to collect light irradiating fingerprint textures, a hole needs to be formed in the Flexible Circuit board so that the light can penetrate through the hole to irradiate onto the fingerprint identification module, and therefore, the fingerprint identification module is generally disposed below the hole formed in the Flexible Circuit board.
Because the trompil on the flexible circuit board is far away from the bottom of mobile terminal, consequently need set up the fingerprint identification subassembly of the trompil below of flexible circuit board far away from the bottom of mobile terminal, occupied more inner space of mobile terminal.
Disclosure of Invention
The embodiment of the disclosure provides a fingerprint module under a screen, a display driving chip and a mobile terminal, which are used for solving the problems of low battery capacity and poor cruising ability of the mobile terminal provided with the fingerprint module under the screen in the related art. The technical scheme is as follows:
on one hand, the embodiment of the disclosure provides an underscreen fingerprint module, which is characterized in that the underscreen fingerprint module comprises a display screen, a display driving chip and a fingerprint identification component;
the display screen is electrically connected with the display driving chip, and the display driving chip is arranged below the display screen;
the fingerprint identification component is arranged below the display driving chip;
a first opening is formed in the display driving chip;
the fingerprint identification component is configured to perform fingerprint identification after receiving light rays which sequentially pass through the display screen and the first opening.
In an optional embodiment, the under-screen fingerprint module further comprises a flexible circuit board;
the display screen, the flexible circuit board and the display driving chip are electrically connected in a Chip On Film (COF) packaging mode;
a second opening is formed in the position, relative to the first opening, of the flexible circuit board;
the fingerprint identification component is configured to perform fingerprint identification after receiving light rays which sequentially pass through the display screen, the second opening and the first opening.
In an optional embodiment, a light shielding layer is arranged below the display screen, and the display driving chip and the fingerprint identification component are sequentially arranged below the light shielding layer;
a third opening is formed in the position, relative to the second opening, of the light shielding layer;
the fingerprint identification component is configured to perform fingerprint identification after receiving light rays which sequentially pass through the display screen, the third opening, the second opening and the first opening.
In an optional embodiment, the position of the display screen relative to the first opening is provided with a first area;
at least one fourth opening is arranged in the first area;
the fingerprint identification component is configured to perform fingerprint identification after receiving light rays passing through the display screen provided with the fourth opening, the third opening, the second opening and the first opening.
In an optional embodiment, the display screen and the display driver chip are electrically connected in a chip-on-screen COP (chip on film) packaging manner.
In an optional embodiment, a light shielding layer is arranged below the display screen;
a fifth opening is formed in the position, relative to the first opening, of the light shielding layer;
the fingerprint identification component is configured to perform fingerprint identification after receiving the light rays sequentially passing through the display screen, the fifth opening and the first opening.
In an alternative embodiment, the display screen includes a display area and a folding area that folds under the display area;
the display area is provided with a second area relative to the position of the first hole, and the folding area is provided with a third area relative to the position of the first hole;
at least one sixth opening is arranged in the second area and/or the third area;
the fingerprint identification component is configured to perform fingerprint identification after receiving light rays sequentially passing through the display area and/or the folding area provided with the sixth opening, the fifth opening and the first opening.
In one aspect, an embodiment of the present disclosure provides a display driver chip, where a first opening is formed in the display driver chip, and the first opening enables a fingerprint identification component disposed below the display driver chip to receive light.
In one aspect, the embodiment of the present disclosure provides a mobile terminal, where the mobile terminal includes the underscreen fingerprint module, a glass cover plate, and a housing;
the fingerprint module under the screen is arranged in a cavity formed by the glass cover plate and the shell.
In an optional embodiment, the under-screen fingerprint module comprises a fingerprint identification component and a display driving chip;
the fingerprint identification component is arranged below the display driving chip;
the fingerprint identification component and the battery are sequentially arranged at the bottom of the shell along the long direction of the mobile terminal.
Through setting up first trompil on showing drive chip, set up the fingerprint identification subassembly in the below of first trompil, because show drive chip and be close to mobile terminal's bottom in the long direction along mobile terminal, consequently set up the fingerprint identification subassembly under the first trompil that shows drive chip and be close to mobile terminal's bottom in the long direction along mobile terminal, thereby can save the volume in the mobile terminal, make mobile terminal can set up the great high capacity battery of volume, and then the duration of the mobile terminal has been promoted to a certain extent.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic front view of a mobile terminal provided with an underscreen fingerprint module in the related art;
fig. 2 is a schematic side view of a mobile terminal provided with an underscreen fingerprint module in the related art;
FIG. 3 is a schematic view of an elevation structure of an underscreen fingerprint module according to an exemplary embodiment of the disclosure;
FIG. 4 is a schematic diagram of a side view structure of an underscreen fingerprint module according to an exemplary embodiment of the present disclosure;
FIG. 5 is a schematic diagram of a side view structure of an underscreen fingerprint module according to an exemplary embodiment of the present disclosure;
FIG. 6 is a schematic view of an elevation structure of an underscreen fingerprint module provided in an exemplary embodiment of the present disclosure;
fig. 7 is a schematic side view of a mobile terminal according to an exemplary embodiment of the present disclosure;
FIG. 8 is a schematic diagram illustrating a side view structure of an underscreen fingerprint module according to an exemplary embodiment of the present disclosure;
FIG. 9 is a schematic diagram illustrating a side view structure of an underscreen fingerprint module according to an exemplary embodiment of the disclosure;
fig. 10 is a schematic side view of a mobile terminal according to an exemplary embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic front view illustrating a mobile terminal provided with an underscreen fingerprint module in the related art. As shown in fig. 1, the mobile terminal 100 will be described with the width direction of the mobile terminal 100 as the x-axis, the length direction of the mobile terminal 100 as the y-axis, and the thickness direction of the mobile terminal 100 as the z-axis.
The under-screen fingerprint module includes a display screen 110, a display driver chip 120, a flexible circuit board 130, and a fingerprint identification component 140.
The flexible circuit board 130 is electrically connected to the display driver chip 120 and the display screen 110, so that the display driver chip 120 is electrically connected to the display screen 110 through the flexible circuit board 130, and the display driver chip 120 controls the display screen 110 in a power-on state.
The display screen 110 is provided with a fingerprint identification area 111, and the flexible circuit board 130 is provided with an opening 131 at a position corresponding to the fingerprint identification area 111 along the z-axis direction. After the user touches the fingerprint identification area 111, the light generated by the display screen 110 irradiates the fingerprint texture of the user, the light irradiated to the fingerprint texture of the user sequentially passes through the display screen 110 and the opening 131 and then irradiates the photosensitive element of the fingerprint identification component 140, the photosensitive element generates an optical signal after receiving the light and transmits the optical signal to the image processing chip of the fingerprint identification component 140, and the image processing chip realizes the identification of the fingerprint texture of the user according to the optical signal.
Fig. 2 is a side view of a mobile terminal using an underscreen fingerprint technology in the related art. As shown in fig. 2, one end of the flexible circuit board 130 is electrically connected to the display screen 110, and is disposed below the display screen 110 along the z-axis direction after being folded. The fingerprint identification component 140 is disposed along the z-axis relative to the fingerprint identification region 111 and the opening 313. Since the fingerprint recognition assembly 140 has a thick thickness, it is difficult for the battery 150 of the mobile terminal 100 to be disposed below the fingerprint recognition assembly 140 in the z-axis direction in order to secure the thickness of the mobile terminal 100. Typically, the battery 150 is disposed on one side of the fingerprint recognition assembly 140 along the y-axis direction.
Generally, the capacity of the battery has a positive correlation with the volume of the battery, and for the mobile terminal, the cruising ability is an important index influencing the performance, and the capacity of the battery is directly related to the cruising ability of the mobile terminal. Because the trompil that corresponds the fingerprint identification region sets up on going deep into the inside flexible circuit board of mobile terminal along the y axle direction among the correlation technique, lead to setting up the position that the fingerprint identification subassembly under the trompil is located also to go deep into mobile terminal's inside along the y axle direction, interval D1 between fingerprint identification subassembly and the bottom of mobile terminal is great, has compressed the space along the y axle direction to make mobile terminal be difficult to set up the battery of great volume on the basis that keeps thickness, and then reduced mobile terminal's duration.
Fig. 3 shows a schematic front view structure diagram of an underscreen fingerprint module according to an exemplary embodiment of the present disclosure. As shown in fig. 3, the underscreen fingerprint module is disposed in the mobile terminal 300, and is described with the width direction of the mobile terminal 300 as an x-axis, the length direction of the mobile terminal 300 as a y-axis, and the thickness direction of the mobile terminal 300 as a z-axis.
The under-screen fingerprint module includes a display screen 310, a display driver chip 320 and a fingerprint identification component 330. Optionally, the under-screen fingerprint module further includes a flexible circuit board 340.
The display screen 310 is electrically connected to the display driver chip 320, and the display driver chip 320 is configured to drive the display screen 310.
Optionally, as shown in fig. 4, the underscreen fingerprint module further includes a flexible circuit board 340, and the flexible circuit board 340 is disposed below the display screen 310 in a folded manner along the z-axis direction; the display driving chip 320 is disposed on the flexible circuit board 340, and the display driving chip 320 is electrically connected to the display screen 310 through the flexible circuit board 340.
Optionally, the display driving chip 320 is disposed on the display screen 310 and electrically connected to the display screen 310 through an electrical contact point on the display screen 310.
Along the z-axis, the fingerprint identification component 330 is disposed below the display driver chip 320.
The display driver chip 320 is provided with a first opening 321, so that the fingerprint identification component 330 can receive light (as indicated by an arrow in fig. 4) passing through the first opening 321 of the display screen 310 for fingerprint identification.
Optionally, the fingerprint identification component 330 includes a photosensitive element 331 and an image processing chip 332. The photosensitive element 331 is electrically connected to the image processing chip 332. The image processing chip 332 is configured to process the light signal generated by the photosensitive element 331 to obtain a fingerprint image.
Along the z-axis, the photosensitive element 331 is disposed below the display driving chip 320, and generates a corresponding light signal by receiving light (as indicated by an arrow in fig. 4) passing through the first opening 321.
Because the display driver chip 320 is closer to the bottom of the mobile terminal 300 along the y-axis direction, the photosensitive element 331 disposed below the first opening 321 of the display driver chip 320 is closer to the bottom of the mobile terminal 300 along the y-axis direction, so that the fingerprint identification component 330 is closer to the bottom of the mobile terminal 300 along the y-axis direction, the distance D2 between the fingerprint identification component 330 and the bottom of the mobile terminal 300 is smaller, thereby saving the space along the y-axis direction, increasing the length of the battery of the mobile terminal along the y-axis direction, and further improving the capacity of the battery.
Illustratively, when a user touches the display screen 310, light generated by the display screen 310 irradiates a finger of the user to press a fingerprint portion of the display screen 310, and irradiates the photosensitive element 331 of the fingerprint identification component 330 after passing through the display screen 310 and the first opening 321 in sequence to generate an optical signal, and transmits the optical signal to the image processing chip 332, and the image processing chip 332 processes the optical signal to identify a fingerprint image.
In summary, in the embodiment of the present disclosure, the first opening is formed in the display driving chip, the fingerprint identification component is disposed below the first opening, and the display driving chip is close to the bottom of the mobile terminal in the long direction along the mobile terminal, so that the fingerprint identification component disposed below the first opening of the display driving chip is close to the bottom of the mobile terminal in the long direction along the mobile terminal, thereby saving the volume in the mobile terminal, enabling the mobile terminal to be capable of providing a large-volume high-capacity battery, and further improving the cruising ability of the mobile terminal to a certain extent.
The display driving chip can be electrically connected with the display screen in two ways: the display driving chip is electrically connected with the display screen through the flexible circuit board which is electrically connected with the display driving chip and the display screen respectively, and the display driving chip is arranged on the display screen and is electrically connected with the display screen through an electric contact point on the display screen.
In order to improve the screen occupation ratio of the mobile terminal, for the first mode, the flexible circuit board and the display driver Chip disposed On the flexible circuit board may be folded and disposed below the display screen, so as to save the occupied position of the display driver Chip. The fig. 5 embodiment will illustrate an underscreen fingerprint module of a mobile terminal employing COF packaging.
In order to increase the screen occupation ratio of the mobile terminal, according to the second mode, the area of the display screen where the display driver Chip is disposed may be folded and disposed below the display area, so that the position occupied by the display driver Chip is saved. The embodiment of fig. 8 will be described with respect to an underscreen fingerprint module of a mobile terminal employing COP encapsulation.
Fig. 5 shows a schematic side view of an underscreen fingerprint module according to an exemplary embodiment of the present disclosure. As shown in fig. 5, the underscreen fingerprint module is disposed in the mobile terminal 500, and is described with the direction of the width of the mobile terminal 500 as an x-axis, the direction of the length of the mobile terminal 500 as a y-axis, and the direction of the thickness of the mobile terminal 500 as a z-axis.
The under-screen fingerprint module includes a display screen 510, a display driver chip 520, a fingerprint identification component 530, a flexible circuit board 540, and a light shielding layer 550. The fingerprint identification component 530 includes a photosensitive element 531 and an image processing chip 532. The photosensitive element 531 is electrically connected to the image processing chip 532. The image processing chip 532 is configured to process the light signal generated by the photosensitive element 531 to obtain a fingerprint image.
The display driving chip 520 is configured to drive the display screen 510 in an operating state of the display screen 510, and a first opening 521 is disposed on the display driving chip 520.
Along the z-axis, the photosensitive element 531 is disposed below the display driving chip 520, and generates a corresponding light signal by receiving light (as indicated by an arrow in fig. 5) passing through the first opening 521.
Along the z-axis direction, the flexible circuit board 540 is folded and arranged below the display screen 510, the display driving chip 520 is arranged on the flexible circuit board 540, and the display driving chip 520 is electrically connected with the flexible circuit board 540 through the connection of the encapsulated pins and the electric contact points of the flexible circuit board 540; the electrical connection between the flexible circuit board 540 and the display screen 510 is realized by connecting the electrical contact points of the flexible circuit board 540 with the electrical contact points of the display screen 510, so that the display driving chip 520 is electrically connected with the display screen 510 through the flexible circuit board 540.
The flexible circuit board 540 is provided with a second opening 541 at a position corresponding to the first opening 521, so that the light sensing element 531 receives light rays passing through the display screen 510, the second opening 541 and the first opening 521 in sequence and then generates a light signal.
Along the z-axis direction, a light shielding layer 550 is disposed below the display screen 510 to prevent light generated by the display screen 510 from leaking. Since the light-shielding layer 550 is usually made of opaque or less transparent material, the light-shielding layer 550 is provided with a third opening 551 at a position opposite to the first opening 521, so that the light-sensing element 531 receives light passing through the third opening 551, the second opening 541 and the first opening 521 to generate a light signal.
To address this problem, the embodiments of the present disclosure may reduce the attenuation of the light energy by the display screen 510 in the following manner, because the light energy is attenuated when the light is irradiated onto the photosensitive element 531 through the display screen 510.
Alternatively, as shown in fig. 6, the display screen 510 is provided with a first region 511 at a position opposite to the first opening 521. The first region 511 is provided with at least one fourth opening 512, so that the photosensitive element 531 receives light sequentially passing through the display screen 510, the third opening 551, the second opening 541 and the first opening 521, which are provided with the fourth opening 512, to generate a light signal. Due to the fact that the at least one fourth hole 512 is formed in the first area 511, energy attenuation of light rays passing through the display screen 510 can be reduced, accuracy of light ray numbers generated by the photosensitive element 531 is improved, and accuracy of fingerprint identification is improved.
Fig. 7 shows a side view schematic structure diagram of an exemplary mobile terminal of the present disclosure. As shown in fig. 7, the mobile terminal 700 includes a glass cover 710, a housing 720, and an underscreen fingerprint module. The under-screen fingerprint module in the embodiment of fig. 5 or fig. 6 includes a display screen 510, a display driver chip 520, a fingerprint identification component 530, a flexible circuit board 540, and a shading layer 550; the underscreen fingerprint module is disposed in a cavity formed by the glass cover 710 and the housing 720.
Optionally, the housing 720 includes a middle frame and a rear cover; the flexible circuit board 540 is electrically connected with the display screen 510, the display driving chip 520, the fingerprint identification component 530 and the main circuit board 740 respectively; optionally, a main circuit board 740 and a battery 750 are sequentially disposed on one side of the fingerprint recognition assembly 530 along the y-axis direction.
In the embodiment of the present disclosure, the areas of the first region 511 and the first opening 521 may be the same or different, and are not limited herein.
In summary, in the embodiment of the present disclosure, the first opening is formed in the display driving chip, the fingerprint identification component is disposed below the first opening, and the display driving chip is close to the bottom of the mobile terminal in the long direction along the mobile terminal, so that the fingerprint identification component disposed below the first opening of the display driving chip is close to the bottom of the mobile terminal in the long direction along the mobile terminal, thereby saving the volume in the mobile terminal, enabling the mobile terminal to be capable of providing a large-volume high-capacity battery, and further improving the cruising ability of the mobile terminal to a certain extent.
Optionally, in the embodiment of the present disclosure, the first region is disposed at a position of the display screen corresponding to the first opening, and the at least one fourth opening is disposed in the first region, so that energy attenuation of light passing through the display screen is reduced, accuracy of a light number generated by the photosensitive element is improved, and accuracy of fingerprint identification is improved.
Fig. 8 is a schematic side view illustrating a structure of an under-screen fingerprint module according to an exemplary embodiment of the present disclosure. As shown in fig. 8, the underscreen fingerprint module is disposed in the mobile terminal 800, and is described with the width direction of the mobile terminal 800 as an x-axis, the length direction of the mobile terminal 800 as a y-axis, and the thickness direction of the mobile terminal 800 as a z-axis.
The under-screen fingerprint module includes a display screen 810, a display driver chip 820, a fingerprint identification component 830 and a light shielding layer 840. The fingerprint recognition component 830 includes a photosensitive element 831 and an image processing chip 832. The photosensitive element 831 is electrically connected to the image processing chip 832. The image processing chip 832 is configured to process the light signals generated by the light sensing element 831 to obtain a fingerprint image.
The display driving chip 820 is configured to drive the display screen 810 in an operating state of the display screen 310, and the display driving chip 820 is provided with a first opening 821.
The display driving chip 820 is disposed on the display screen 810 and electrically connected to the display screen 810 through an electrical contact point on the display screen 810; the display screen 810 sets an area where the driving chip is displayed as a folding area 811, and the other area except the folding area 811 is a display area 812, and the folding area 811 is folded and disposed below the display area 812 in the z-axis direction.
Along the z-axis direction, the photosensitive element 831 is disposed below the display driving chip 820, and generates a corresponding light signal by receiving light (as indicated by an arrow in fig. 8) passing through the first opening 821.
Along the z-axis direction, a light shielding layer 840 is disposed below the display screen 810 to prevent light generated by the display screen 810 from leaking. Since the light shielding layer 840 is usually made of opaque or less transparent material, the light shielding layer 840 is provided with a fifth opening 841 at a position opposite to the first opening 821, so that the light sensing element 831 generates an optical signal after receiving light passing through the fifth opening 841 and the first opening 821.
To address this problem, the embodiments of the disclosure may reduce the attenuation of the light energy by the display screen 810 in the following manner, because the light energy is attenuated when the light irradiates the photosensitive element 831 through the display screen 810.
Alternatively, as shown in fig. 9, the display area 811 is provided with a second area 813 at a position opposite to the first opening 821; the location of the fold region 812 relative to the first aperture 821 is provided with a third region 814. At least one sixth opening 815 is disposed in the second region 813 and/or the third region 814, so that the light sensing element 831 generates a light signal after receiving light rays sequentially passing through the display 810, the fifth opening 841 and the first opening 821, which are disposed with the sixth opening 815. Due to the fact that the second area 813 and/or the third area 814 are/is provided with the at least one sixth opening 815, energy attenuation of light rays passing through the display screen 810 can be reduced, accuracy of light ray numbers generated by the light sensing element 831 is improved, and accuracy of fingerprint identification is improved.
Fig. 10 shows a side view schematic structure diagram of an exemplary mobile terminal of the present disclosure. As shown in fig. 10, the mobile terminal 1000 includes a glass cover 1010, a housing 1020, and an underscreen fingerprint module. The underscreen fingerprint module in the embodiment of fig. 8 or 9 includes an underscreen fingerprint module, which includes a display screen 810, a display driver chip 820, a fingerprint identification component 830, and a light shielding layer 840; the underscreen fingerprint module is disposed in a cavity formed by the glass cover plate 1010 and the housing 1020.
Optionally, the housing 1020 includes a middle frame and a rear cover; the display screen 810 is electrically connected to the display driving chip 820 and the main circuit board 1040 respectively; optionally, a main circuit board 1040 and a battery 1050 are sequentially disposed on one side of the fingerprint recognition assembly 830 along the y-axis direction.
In the embodiment of the present disclosure, the areas of the second region 813, the third region 814 and the first opening 821 may be the same or different, and are not limited herein.
In summary, in the embodiment of the present disclosure, the first opening is formed in the display driving chip, the fingerprint identification component is disposed below the first opening, and the display driving chip is close to the bottom of the mobile terminal in the long direction along the mobile terminal, so that the fingerprint identification component disposed below the first opening of the display driving chip is close to the bottom of the mobile terminal in the long direction along the mobile terminal, thereby saving the volume in the mobile terminal, enabling the mobile terminal to be capable of providing a large-volume high-capacity battery, and further improving the cruising ability of the mobile terminal to a certain extent.
Optionally, in the embodiment of the present disclosure, the second area and the third area are disposed at positions of the display screen corresponding to the first opening, and at least one sixth opening is disposed in the second area and/or the third area, so that energy attenuation of light passing through the display screen is reduced, accuracy of a light number generated by the photosensitive element is improved, and accuracy of fingerprint identification is improved.
In the above embodiment, the position of the first opening on the display driver chip can be determined according to the overall design of the mobile terminal, and the routing of the display driver chip avoids the first opening.
The first opening on the display driving chip can be processed in the following way: (1) the shell and the first opening of the display driving chip are formed in one step when the display driving chip is punched and cut into a sheet from a coiled material; (2) and cutting the first opening by secondary punching or laser, wherein the cutting outline of the first opening is reserved with a certain avoiding distance from the display driving chip wiring according to the process requirement.
It should be understood that reference to "a plurality" herein means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
The above-mentioned serial numbers of the embodiments of the present disclosure are merely for description and do not represent the merits of the embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (10)
1. The under-screen fingerprint module is characterized by comprising a display screen, a display driving chip and a fingerprint identification component;
the display screen is electrically connected with the display driving chip, and the display driving chip is arranged below the display screen;
the fingerprint identification component is arranged below the display driving chip;
a first opening is formed in the display driving chip;
the fingerprint identification component is configured to perform fingerprint identification after receiving light rays which sequentially pass through the display screen and the first opening.
2. The underscreen fingerprint module of claim 1 further comprising a flexible circuit board;
the display screen, the flexible circuit board and the display driving chip are electrically connected in a Chip On Film (COF) packaging mode;
a second opening is formed in the position, relative to the first opening, of the flexible circuit board;
the fingerprint identification component is configured to perform fingerprint identification after receiving light rays which sequentially pass through the display screen, the second opening and the first opening.
3. The under-screen fingerprint module of claim 2, wherein a light-shielding layer is disposed below the display screen, and the display driver chip and the fingerprint identification component are sequentially disposed below the light-shielding layer;
a third opening is formed in the position, relative to the second opening, of the light shielding layer;
the fingerprint identification component is configured to perform fingerprint identification after receiving light rays which sequentially pass through the display screen, the third opening, the second opening and the first opening.
4. The set of underscreen fingerprints of claim 3, wherein the display screen is provided with a first region relative to the position of the first opening;
at least one fourth opening is arranged in the first area;
the fingerprint identification component is configured to perform fingerprint identification after receiving light rays passing through the display screen provided with the fourth opening, the third opening, the second opening and the first opening.
5. The underscreen fingerprint module of claim 1, wherein the display screen and the display driver chip are electrically connected by a chip-on-screen COP (chip on film) package.
6. The underscreen fingerprint module of claim 5, wherein a light shielding layer is disposed below the display screen;
a fifth opening is formed in the position, relative to the first opening, of the light shielding layer;
the fingerprint identification component is configured to perform fingerprint identification after receiving the light rays sequentially passing through the display screen, the fifth opening and the first opening.
7. The set of infra-screen fingerprints of claim 6, wherein the display screen comprises a display area and a fold area folded under the display area;
the display area is provided with a second area relative to the position of the first hole, and the folding area is provided with a third area relative to the position of the first hole;
at least one sixth opening is arranged in the second area and/or the third area;
the fingerprint identification component is configured to perform fingerprint identification after receiving light rays sequentially passing through the display area and/or the folding area provided with the sixth opening, the fifth opening and the first opening.
8. The display driving chip is characterized in that a first hole enabling a fingerprint identification component arranged below the display driving chip to receive light is formed in the display driving chip.
9. A mobile terminal, characterized in that the mobile terminal comprises the underscreen fingerprint module, the glass cover plate and the housing according to any one of claims 1 to 7;
the fingerprint module under the screen is arranged in a cavity formed by the glass cover plate and the shell.
10. The mobile terminal of claim 9, wherein the underscreen fingerprint module comprises a fingerprint identification component and a display driver chip;
the fingerprint identification component is arranged below the display driving chip;
the fingerprint identification component and the battery are sequentially arranged at the bottom of the shell along the long direction of the mobile terminal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811503520.9A CN111290522B (en) | 2018-12-10 | 2018-12-10 | Fingerprint module under screen, display driving chip and mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811503520.9A CN111290522B (en) | 2018-12-10 | 2018-12-10 | Fingerprint module under screen, display driving chip and mobile terminal |
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| CN111290522A true CN111290522A (en) | 2020-06-16 |
| CN111290522B CN111290522B (en) | 2022-02-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12142071B2 (en) | 2021-10-07 | 2024-11-12 | Samsung Electronics Co., Ltd. | Electronic device including fingerprint sensor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008137287A1 (en) * | 2007-04-30 | 2008-11-13 | Validity Sensors, Inc. | Apparatus and method for protecting fingerprint sensing circuitry from electrostatic discharge |
| CN107102693A (en) * | 2017-04-27 | 2017-08-29 | 广东欧珀移动通信有限公司 | Display screen, display device and mobile terminal |
| CN206741370U (en) * | 2017-05-15 | 2017-12-12 | 华显光电技术（惠州）有限公司 | Display screen module and touch control terminal |
| CN107526953A (en) * | 2016-06-15 | 2017-12-29 | 三星电子株式会社 | Support the electronic installation and its operating method of finger print identifying function |
| CN107705716A (en) * | 2017-10-27 | 2018-02-16 | 京东方科技集团股份有限公司 | A kind of OLED modules and display device |
| CN107863370A (en) * | 2017-09-30 | 2018-03-30 | 昆山国显光电有限公司 | Display device |
| CN108734119A (en) * | 2018-05-14 | 2018-11-02 | 维沃移动通信有限公司 | A kind of display module and electronic equipment |
-
2018
- 2018-12-10 CN CN201811503520.9A patent/CN111290522B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008137287A1 (en) * | 2007-04-30 | 2008-11-13 | Validity Sensors, Inc. | Apparatus and method for protecting fingerprint sensing circuitry from electrostatic discharge |
| CN107526953A (en) * | 2016-06-15 | 2017-12-29 | 三星电子株式会社 | Support the electronic installation and its operating method of finger print identifying function |
| CN107102693A (en) * | 2017-04-27 | 2017-08-29 | 广东欧珀移动通信有限公司 | Display screen, display device and mobile terminal |
| CN206741370U (en) * | 2017-05-15 | 2017-12-12 | 华显光电技术（惠州）有限公司 | Display screen module and touch control terminal |
| CN107863370A (en) * | 2017-09-30 | 2018-03-30 | 昆山国显光电有限公司 | Display device |
| CN107705716A (en) * | 2017-10-27 | 2018-02-16 | 京东方科技集团股份有限公司 | A kind of OLED modules and display device |
| CN108734119A (en) * | 2018-05-14 | 2018-11-02 | 维沃移动通信有限公司 | A kind of display module and electronic equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12142071B2 (en) | 2021-10-07 | 2024-11-12 | Samsung Electronics Co., Ltd. | Electronic device including fingerprint sensor |
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| CN111290522B (en) | 2022-02-08 |
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