CN106681052B - A kind of backlight module and display device - Google Patents
A kind of backlight module and display device Download PDFInfo
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- CN106681052B CN106681052B CN201611022015.3A CN201611022015A CN106681052B CN 106681052 B CN106681052 B CN 106681052B CN 201611022015 A CN201611022015 A CN 201611022015A CN 106681052 B CN106681052 B CN 106681052B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention provides a kind of backlight module and display device, belongs to field of display technology, can solve the problems, such as that existing backlight module not can be implemented simultaneously narrow frame and ultra-thin display.Light source is embedded inside the first lens arrangement in backlight module of the invention, first lens arrangement is set in the first face of plate body, second lens arrangement is set on plate body light-emitting surface, such first lens arrangement is in conjunction with the second lens arrangement: the first lens arrangement covers light source point from positive angle and breaks up the light of light source to expand light visual angle out, second lens arrangement scatters the light of plate body outgoing, so that light carries out last time scattering in plate body after superrefraction at the second lens arrangement of light-emitting surface, the homogeneity of light-emitting surface light intensity is improved.Backlight module light source of the invention is not necessarily to occupy the lateral location of display device, while being effectively compressed optical cavity height, the thickness for reducing backlight module is maximized, to realize slimming, narrow frame design.
Description
Technical field
The invention belongs to field of display technology, and in particular to a kind of backlight module and display device.
Background technique
Existing liquid crystal display device (LCD, Liquid Crystal Display) is largely backlight liquid crystal display
Device comprising liquid crystal display panel and backlight module (backlight module).Liquid crystal display panel itself does not shine, and needs
The light source to provide by backlight module normally shows image, and therefore, backlight module becomes crucial group of liquid crystal display device
One of part.
Backlight module can be divided into side entrance back module and down straight aphototropism mode set two according to the difference of light source incidence position
Kind.As shown in Figure 1, side entrance back module is usually that light source, such as LED light bar 12 are set to liquid crystal display panel side rear
Back plate edges at, light that LED light bar 12 issues is from the incidence surface of the side light guide plate 11 (LGP, Light Guide Plate)
Into light guide plate 11, projected after spreading from 11 light-emitting surface of light guide plate, then form area source via optical diaphragm, to be supplied to
Liquid crystal display panel.As shown in Fig. 2, down straight aphototropism mode set is by backlight such as cathodouminescence fluorescent tube (CCFL, Cold
Cathode Fluorescent Lamp) or the light sources 22 (generally point light source) such as LED light the back at liquid crystal display panel rear is set
On plate 23, light forms area source after the homogenization of diffuser plate 21 and is supplied to liquid crystal display panel.
At least there are the following problems in the prior art for inventor's discovery: the design and process conditions of backlight module have at present
Limit, side entrance back module is as shown in Figure 1, since the position that LED light bar 12 occupies side is difficult to accomplish ultra-narrow frame design, together
When be difficult to accomplish oversize and compatible highlighted design；Down straight aphototropism mode set is as shown in Fig. 2, certain optical cavity height need to be reserved
H increases light mixing distance and cannot achieve slimming design.
Summary of the invention
The present invention provides a kind of back aiming at the problem that existing backlight module not can be implemented simultaneously narrow frame and ultra-thin display
Optical mode group and display device.
Solving technical solution used by present invention problem is:
A kind of backlight module, comprising:
The plate body of light-permeable, wherein the light-emitting surface of plate body is the second face, with the second face phase
Pair face be the first face；
The first lens arrangement in the first face of plate body；
The light source being embedded inside first lens arrangement；
The second lens arrangement on the second face of plate body.
Preferably, first lens arrangement includes total reflection lens, and second lens arrangement includes by concavees lens
The concave-convex lens to be formed is combined with convex lens.
Preferably, where perpendicular to the plate body on the direction in face, the section of the total reflection lens is that isosceles are straight
Angle triangle, the bevel edge of the isosceles right triangle are parallel to the face where the plate body, the isosceles right triangle
Right angle is arranged compared to the bevel edge closer to the second face of the plate body；The light source is embedded at the isosceles right triangle
Bevel edge on.
Preferably, the recess portion of the concave-convex lens corresponds at the right-angled apices position of isosceles right triangle, described recessed
The protrusion of convex lens corresponds at the right-angle side position of isosceles right triangle.
Preferably, the height of the isosceles right triangle is h1, where perpendicular to the plate body on the direction in face,
The plate body is having a size of h2, h1: h2Range be (3-4.5): 5.
Preferably, the light source includes LED light, and the LED light is equipped with reflecting layer far from the side in second face.
Preferably, first lens arrangement includes being totally reflected cylindrical lenses, in every total reflection cylindrical lenses
Interval is embedded with multiple LED light.
Preferably, first face of plate body is equipped with reflector plate far from the side in the second face.
Preferably, the plate body includes light guide plate or diffuser plate, is equipped with diffusion particle in the plate body.
The present invention also provides a kind of display devices, including above-mentioned backlight module.
Wherein, the second face of the present invention is the light-emitting surface of plate body, and the first face is the face opposite with the second face.The present invention
The total reflection prism refers to that cross section is the prism of isosceles right triangle.
Light source is embedded inside the first lens arrangement in backlight module of the invention, the first lens arrangement is set to plate body
In first face, the second lens arrangement is set on plate body light-emitting surface, and such first lens arrangement is in conjunction with the second lens arrangement: the
One lens arrangement covers light source point from positive angle and breaks up the light that goes out of light source to expand light visual angle out, and the second lens arrangement dissipates
The light for penetrating plate body outgoing, so that light carries out last at the second lens arrangement of light-emitting surface after superrefraction in plate body
Secondary scattering, to improve the homogeneity of light-emitting surface light intensity.Backlight module light source of the invention is not necessarily to occupy the side of display device
Position, while it being effectively compressed optical cavity height, the thickness for reducing backlight module is maximized, realizes slimming, narrow frame design.This
The backlight module of invention is suitable for various display devices.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing side entrance back module；
Fig. 2 is the structural schematic diagram of existing down straight aphototropism mode set；
Fig. 3 is the structural schematic diagram of the backlight module of the embodiment of the present invention 1；
Fig. 4-6 is the structural schematic diagram of the backlight module of the embodiment of the present invention 2；
Fig. 7 is the structural schematic diagram of the backlight module of the embodiment of the present invention 3；
Fig. 8 is the curve of light distribution figure of the light source of the embodiment of the present invention 3；
Fig. 9 is the curve of light distribution figure of the backlight module of the embodiment of the present invention 3；
Figure 10-11 is the picture stimulated effect picture of backlight module of the embodiment of the present invention 3；
Figure 12 is the light-source structure schematic diagram of the embodiment of the present invention 2；
Figure 13-15 is that the light of the embodiment of the present invention 2 propagates schematic diagram；
Wherein, appended drawing reference are as follows: 11, light guide plate；12, LED light bar；21, diffuser plate；22, light source；221, LED light；222,
Reflecting layer；31, plate body；32, the first lens arrangement；33, the second lens arrangement；34, reflector plate；35, printed circuit board.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party
Present invention is further described in detail for formula.
Embodiment 1:
The present embodiment provides a kind of backlight modules, as shown in figure 3, including the plate body 31 of light-permeable, wherein plate body goes out light
Face is the second face, and the first face is the face opposite with the second face.The first lens arrangement 32 is equipped in 31 first face of plate body, and (i.e. first thoroughly
Mirror structure 32 is really embedded in plate ladder 31)；Light source 22 is embedded with inside first lens arrangement 32；Second face of plate body 31
On be additionally provided with the second lens arrangement 33.
The backlight module of the present embodiment is combined the first lens arrangement 32 with the second lens arrangement 33, wherein the first lens
Structure 32 wraps up light source 22 to cover light source 22, i.e., breaks up the light that light source 22 issues, so that light source when watching from positive visual angle
22 points invisible, expands visual angle；Second lens arrangement 33 scatters the light that plate body 31 is emitted, so that light passes through in plate body 31
Last time scattering is carried out after refraction at the second lens arrangement 33 of light-emitting surface, to improve the homogeneity of light-emitting surface light intensity.
Backlight module light source 22 of the invention is not necessarily to occupy the lateral location of display device, while being effectively compressed optical cavity height
Degree maximizes the thickness for reducing backlight module, realizes slimming, narrow frame design.The backlight module is filled suitable for various displays
It sets.
Embodiment 2:
The present embodiment provides a kind of backlight modules, as shown in figure 4, including the plate body 31 of light-permeable, are set to plate body 31 first
The first lens arrangement 32 in face；The light source 22 being embedded inside first lens arrangement 32；On 31 second face of plate body
The second lens arrangement 33.Wherein, the first lens arrangement 32 is total reflection lens, meanwhile, the second lens arrangement 33 is by recessed
Mirror and convex lens combine the concave-convex lens to be formed.
The material of plate body 31 can be optical resin material, such as polymethyl methacrylate (PMMA), polycarbonate
(PC), polystyrene (PS) etc.；The material of first lens arrangement 32 is also similar optical resin material.It should be noted that
The refractive index of the material and the material of plate body 31 of first lens arrangement 32 can be different, and be also possible to identical, work as the two
When refractive index difference, specific material, which can according to need, to be selected, and there is no particular limitation, but when both be identical material and
When refractive index is identical, need to form air layer or coating optics liquid optical cement (OCR) in the two contact surface.
It compares in conjunction with Fig. 2, Fig. 3, Fig. 4 it can be seen that showing that there are design limitations in structure, need to reserve one shown in Fig. 2
Fixed optical cavity height H increases light mixing distance to achieve the effect that secondary light mixing, while also needing to increase LED number, LED lens
(secondary lens) are to cover the lamp shadow of LED itself to improve picture homogeneity.
And the present embodiment total reflection lens, Formation cross-section is being all-trans for isosceles right triangle on 31 first face of plate body
Lens arrangement is penetrated, i.e., insertion is arranged in plate body 31 after total reflection lens bevel edge package light source 22, can hide in this way from positive visual angle
22 points of light-blocking source is directly entered in plate body 31 so that the light of the sending of light source 22 is loss-free.
Specifically, referring to Figure 13: the light that adjacent light source 22 is emitted is incident on entirely from the direction in face where parallel plates
One right-angle side of mirror lens (is shown in the figure incident from the left side i.e. side A, it is to be understood that the light of the right incidence
Propagation condition is similar) where face when, refraction and reflection can occur in total reflection prism, and in the another of total reflection prism
Face where one right-angle side (right side, that is, side B) changes the original loss-free generation birefringence in the direction of propagation of light and penetrates
Out.
Referring to Figure 14: when the light that adjacent light source 22 is emitted enters perpendicular to the right-angle side place face of total reflection prism
When penetrating, being equivalent to light with respect to the incidence angle in face where plate body is 45 °, and light free of losses deflects 90 °, in another right-angle side institute
It is reflected in face, this is in the process also without fiber-loss；Other angles light is according to refraction and reflection law in total reflection rib
Birefringence occurs for face where another right-angle side of mirror.
In addition, as shown in figure 15, some light of the light source 22 inside total reflection prism is incident from the side the A inclined-plane of prism,
By the working principle of total reflection prism --- the reflection law and the law of refraction of light, light is propagated in same media when reflecting
Angle of reflection and incidence angle are equal, what light will not reflect when being incident on another medium by a kind of vertical two medium plane of medium
Characteristic, light lossless can reverse 180 °, at this time can be in 22 light-emitting surface of light source or total reflection prism incidence surface (isosceles right angle trigonometry
The bottom edge of shape or bevel edge) reflecting layer scatter, light is redistributed；And the light of other angles can be in total reflection rib
The right-angle side of mirror is reflected, as shown in figure 4, light carries out birefringence in the light-emitting surface of plate body 31, to realize total reflection
Bridging effect of the prism to the light source 22 of exactly angle, the halation of 22 points of light source of desalination, evades 22 bring brightness unevenness of light source
The problem of.
Be equivalent to light that 32 one side of the first lens arrangement issues light source 22 can in lossless importing plate body 31,
Light can be spread out of in the case where the transmission direction of light is constant again simultaneously, to increase substantially light extraction efficiency.Meanwhile from
It can be seen that the structure has been effectively compressed optical cavity height in figure, the thickness for reducing backlight module is maximized.And collocation concave-convex lens
The light that plate body 31 is emitted is scattered into all angles, improves the uniformity of light-emitting surface light intensity.
Preferably, on the direction perpendicular to the 31 place face of plate body, the section of the total reflection lens is isosceles
Right angled triangle, the bevel edge of the isosceles right triangle are parallel to the face where the plate body 31, the isosceles right angle trigonometry
The right angle of shape is arranged compared to the bevel edge closer to the second face of the plate body 31；It is straight that the light source 22 is embedded at the isosceles
On the hypotenuse of angle.
Preferably, the recess portion of the concave-convex lens corresponds at the square position of isosceles right triangle, described concave-convex saturating
The protrusion of mirror corresponds at the right-angle side position of isosceles right triangle.
That is, as shown in figure 4, the section of total reflection lens is isosceles right triangle, wherein isosceles right angle trigonometry
The bevel edge of shape is located at 31 bottom of plate body, and light source 22 is embedded in its bevel edge, in this way, the light that light source 22 issues is from the straight of total reflection lens
Arm of angle outgoing, is equivalent to the center position at the top of 31 inside right angle of plate body without light out, thus by the yin at 22 position of light source
Shadow covers.It is understood that the light that goes out of the plate body 31 in this way at face square position wants weak compared to the light that goes out of right-angle side, In
This collocation concave-convex lens scatters to the light intensity at face right-angle side position at square position, specifically, to correspond to isosceles straight for recess portion
Light is converged at the square position of angle triangle, protrusion corresponds to light at the right-angle side position of isosceles right triangle
Diverging, to play the role of improving light-emitting surface light intensity uniformity.
Preferably, the light source 22 includes LED light 221, and the LED light is equipped with reflection far from the side in second face
Layer 222.
That is, 221 point light source of LED light is used in this light source 22, since the light direction of point light source itself is four sides
All directions, choose the point light source that bottom as shown in figure 12 has reflecting layer 222, it is possible to reduce the light at the first face (i.e. back)
Loss.
Preferably, first lens arrangement 32 includes total reflection cylindrical lenses, every total reflection cylindrical lenses
Interior interval is embedded with multiple LED light.
That is, every complete as shown in figure 5, the first lens arrangement 32 is the total reflection cylindrical lenses of more root long strips
Reflection cylindrical lenses are embedded in multiple light sources 22, are conducive in this way by the outgoing light uniformization of multiple light sources 22.It can certainly be such as
Shown in Fig. 6, the total reflection lens that light source 22 is wrapped up only are set at the position of each light source 22, in the side for being parallel to plate body 31
Upwards, the size of lens can be changed according to actual needs.
Embodiment 3:
The present embodiment provides a kind of backlight modules, have the structure similar with the backlight module of embodiment 2, with implementation
The difference of example 2 is that 22 back side areflexia layer of light source, 31 first face of plate body is externally provided with reflector plate 34.
That is, as shown in fig. 7, reflector plate is arranged outside 31 first face of plate body to reduce the light at the first face (i.e. back)
Line loss is lost, and the utilization rate of light is improved, and enhances light efficiency.It should be noted that being also shown in figure for providing letter to light source 22
Number printed circuit board 35 (pcb board), usual pcb board is set to the lower section of light source 22, the shade for the masking light source 22 being mentioned above
Shade including pcb board.
Preferably, the height of the isosceles right triangle is h1, in the direction perpendicular to the 31 place face of plate body
On, the plate body 31 is having a size of h2, h1: h2Range be (3-4.5): 5.Wherein, work as h1: h2Range be (3-4.5):, can when 5
So that light-out effect is more evenly.
A kind of specific embodiment is provided herein:
As shown in fig. 7, choosing thickness h2It include to be spaced apart in the first face (i.e. incidence surface) for the plate body 31 of 2.5mm
Columnar total reflection lens, section are isosceles right triangle, height h1For 2.0mm, be equivalent to total reflection lens right angle away from
The distance in 31 second face (i.e. light-emitting surface) of plate body is 0.5mm, the bevel edge embedded with LED light source 22 of total reflection lens.
Commercially available LED PKG7030 is chosen in the present embodiment is illustrated that (other commercially available LED light sources 22 also can reach identical
Effect), the longitudinal direction of LED PKG7030 and the setting direction of cylindrical lenses are parallel.Wherein, the LED PKG7030 light of purchase
Strong distribution curve is as shown in Figure 8, it can be seen that its light emitting angle is about in 120 °, and it is most strong to face angle light intensity, the bigger light in visual angle
It is strong weaker.
After LED PKG7030 is used for the backlight module of the present embodiment, distribution curve flux is as shown in Figure 9, it can be seen that concave-convex
Light intensity at the position of corresponding isosceles right triangle right-angle side is scattered to other angles by the protrusion of lens, is equivalent to the position
Locate the opposite decrease of light intensity, whole big visual angle light intensity enhancing, to realize the effect for improving light-emitting surface light intensity uniformity.And pass through
The percent reflectivity of sunykatuib analysis, the light inside the total reflection prism of the present embodiment is about 15%, and total reflection prism is at two
The percentage that right-angle surface reflects accounts for about 85%.
Preferably, the plate body 31 includes light guide plate or diffuser plate, and diffusion particle is equipped in the plate body 31 or is dissipated
Air layer is penetrated, diffusion particle selects optical resin PMMA particle, is dispersed in plate as scattering particles or air alveolar layer and respectively sets
Refer between layer, light XIAN when by diffusion layer can the continuous Propagation different in two refractive index, occur many refractions,
The phenomenon that reflection is with scattering strengthens the effect of light homogeneity to generate optics diffusion.
Wherein, diffusion particle can make light further dissipate, and increase the homogeneity of light out.It should be noted that light
Source 22 can be selected from diffuser plate or light guide plate, and Figure 10, Figure 11 are respectively that diffuser plate, light guide plate are arranged in pairs or groups the recessed of LED PKG7030 respectively
Lens visual simulates effect, it is seen that the structure Picture Showing of light guide plate is micro- to be better than diffusion board structure, but two kinds of design structures
To meet picture requirement.Specifically, can according to 22 concrete model of light source, light distribution, light guide plate incidence surface scattering netted dot
The different concave-convex lens of the collocation such as design carry out light distribution and obtain optimal matching structure so that the light that issues of LED can be with
It is lossless to enter in diffuser plate or light guide plate, while can pass to light far in the case where the transmission direction of light is constant again
End, to increase substantially light extraction efficiency.
Preferably, the concave-convex lens is that heat rolling or coating optical resin are formed on 31 second face of plate body.
That is, a kind of specific formation concave-convex lens method is provided herein, specifically, rolling in diffuser plate light-emitting surface heat
One layer of optical resin raw material of pressure or coating is formed by curing meniscus configuration.It is simple and convenient using this method preparation step,
The recess portion of obtained concave-convex lens and the position of protrusion are accurate.
Embodiment 4:
The present embodiment provides a kind of display devices, including above-mentioned backlight module.The display device can be with are as follows: liquid crystal
Show any tool such as panel, Electronic Paper, mobile phone, tablet computer, television set, display, laptop, Digital Frame, navigator
There are the products or components of display function.
Obviously, also many modifications may be made to for the specific embodiment of the various embodiments described above；Such as: the first lens arrangement,
The specific size of two lens arrangements, which can according to need, to be selected, light source spacing, h1With h2Size etc. can according to need progress
Adjustment.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (8)
1. a kind of backlight module characterized by comprising
The plate body of light-permeable, wherein the light-emitting surface of plate body is the second face, and the face opposite with the second face is the first face；
The first lens arrangement in the first face of plate body；
The light source being embedded inside first lens arrangement；
The second lens arrangement on the second face of plate body；
First lens arrangement includes total reflection lens, and second lens arrangement includes combining shape by concavees lens and convex lens
At concave-convex lens；
Where perpendicular to the plate body on the direction in face, the section of the total reflection lens is isosceles right triangle, described
The bevel edge of isosceles right triangle is parallel to the face where the plate body, and the right angle of the isosceles right triangle is compared to described
Bevel edge is arranged closer to the second face of the plate body；The light source is embedded on the bevel edge of the isosceles right triangle.
2. backlight module according to claim 1, which is characterized in that the recess portion of the concave-convex lens corresponds to isosceles right angle three
At angular square position, the protrusion of the concave-convex lens is corresponded at the right-angle side position of isosceles right triangle.
3. backlight module according to claim 1, which is characterized in that the height of the isosceles right triangle is h1, hanging down
Directly where the plate body on the direction in face, the plate body is having a size of h2, h1: h2Range be (3-4.5): 5.
4. backlight module according to claim 1, which is characterized in that the light source includes LED light, and the LED light is separate
The side in second face is equipped with reflecting layer.
5. backlight module according to claim 4, which is characterized in that first lens arrangement includes that total reflection column is saturating
Mirror, the interior interval of every total reflection cylindrical lenses are embedded with multiple LED light.
6. backlight module according to claim 1, which is characterized in that first face of plate body is set far from the side in the second face
There is reflector plate.
7. backlight module according to claim 1, which is characterized in that the plate body includes light guide plate or diffuser plate, described
Diffusion particle is equipped in plate body.
8. a kind of display device, which is characterized in that including the described in any item backlight modules of claim 1-7.
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| CN201611022015.3A CN106681052B (en) | 2016-11-16 | 2016-11-16 | A kind of backlight module and display device |
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| CN201611022015.3A CN106681052B (en) | 2016-11-16 | 2016-11-16 | A kind of backlight module and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109681792A (en) * | 2017-10-18 | 2019-04-26 | 鸿富锦精密工业（深圳）有限公司 | LED backlight mould group |
| CN110094640B (en) * | 2018-01-27 | 2021-10-22 | 深圳市绎立锐光科技开发有限公司 | Light source system and lighting device |
| CN108845461B (en) * | 2018-08-31 | 2023-06-30 | 武汉华星光电技术有限公司 | Backlight module and liquid crystal display device |
| TWI656367B (en) * | 2018-12-12 | 2019-04-11 | 大陸商光寶電子〈廣州〉有限公司 | Optical lens and light source module |
| CN109491008A (en) * | 2019-01-05 | 2019-03-19 | 靖江市永盛光电科技有限公司 | A kind of direct backlight source structure with Integral secondary lens |
| CN110906279A (en) * | 2019-12-26 | 2020-03-24 | 珠海市唯能车灯实业有限公司 | Lens capable of uniformly distributing light |
| CN114217479B (en) * | 2022-02-09 | 2024-05-07 | 深圳创维－Rgb电子有限公司 | Optical assembly, backlight module and display device |
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| CN204164945U (en) * | 2014-10-11 | 2015-02-18 | 广州毅昌科技股份有限公司 | The LED lens that a kind of hot spot uniformity is high |
| CN104456301B (en) * | 2014-11-15 | 2018-02-16 | 青岛歌尔声学科技有限公司 | A kind of LED light source module, LED light bar and down straight aphototropism mode set |
| TWI546489B (en) * | 2014-11-25 | 2016-08-21 | 揚昇照明股份有限公司 | Light source module and light source unit |
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| CN101116014A (en) * | 2005-12-09 | 2008-01-30 | 索尼株式会社 | Surface light emission device and liquid crystal display |
| CN102705777A (en) * | 2012-06-29 | 2012-10-03 | 冠捷显示科技（厦门）有限公司 | Secondary lens with bottom of curved surface structure |
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