CN105785499B - Edge-type light guide plate component, side entrance back module and display device - Google Patents
Edge-type light guide plate component, side entrance back module and display device Download PDFInfo
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- CN105785499B CN105785499B CN201610331040.3A CN201610331040A CN105785499B CN 105785499 B CN105785499 B CN 105785499B CN 201610331040 A CN201610331040 A CN 201610331040A CN 105785499 B CN105785499 B CN 105785499B
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- guide plate
- light guide
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0056—Means for improving the coupling-out of light from the light guide for producing polarisation effects, e.g. by a surface with polarizing properties or by an additional polarizing elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
- G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
- G02B6/0048—Tapered light guide, e.g. wedge-shaped light guide with stepwise taper
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0075—Arrangements of multiple light guides
- G02B6/0076—Stacked arrangements of multiple light guides of the same or different cross-sectional area
-
- 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
- G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention relates to technical field of liquid crystal display, provide a kind of edge-type light guide plate component and the side entrance back module including the edge-type light guide plate component and display device.The edge-type light guide plate component includes the first light guide plate, polarization beam splitter and the second light guide plate being bonded successively, it converts the light being injected into the first light guide plate to the linearly polarized light reflected by polarization beam splitter by polarization generator, by the first reflective surface after light propagation arrival terminal surface, and pass through quarter wave plate back and forth, it is changed into the linearly polarized light transmitted by polarization beam splitter, thus may pass through polarization beam splitter and inversely propagate and projected successively from the site on the second light guide plate reflecting surface.Since the light projected from site at least all have passed through the mixing of the length of first light guide plate, light source spacing can be increased in design, realize the purpose for reducing quantity of light source under conditions of not generating heat spot, and the integral thickness of light guide plate assembly will not be increased.
Description
Technical field
The present invention relates to technical field of liquid crystal display, a kind of edge-type light guide plate component, side entrance back are specifically provided
Module and display device.
Background technology
In field of liquid crystal display, routine side-edge type backlight scheme is as shown in Figure 1, to avoid incident side from generating overheat at present
Point, the distance of the effective display area domain AA of LED light-emitting surfaces to light guide plate L and the ratio of LED spacing d have to be larger than a certain specific
Value, i.e., LED spacing d can not be too small, and otherwise incident side LED light radiating area mixed light is insufficient, will produce heat spot.Therefore,
LED particle arrangement in side-edge type backlight lamp bar is usually very close, thus can lead to following problem：(1) it determines in design
LED quantity is other than considering luminance factor, it is necessary to consider LED spacing, so LED quantity cannot be very little, can not effectively reduce
LED costs；(2) LED arranging densities are big, poor radiation, influence product reliability.
Based on above-mentioned technical problem, patent US20150268479A1 discloses a kind of light guide plate L, as shown in Figure 2.
For this light guide plate L lower surface designs at step type, the light that LED is sent out enters light guide plate through incidence surface, leans on upper and lower light guiding surface
Total reflection propagate forward, if lower surface step inclined plane e angles setting it is proper, light will not reach step inclined plane e, this propagation
In the process without beam projecting.Light depends on step inclined plane e through changing the direction of propagation after reflective surface in reverse communication process
Light extraction.Such leaded light scheme can realize the purpose for reducing LED quantity, even if a LED can also reach requirement, as shown in Figure 3.
But the shortcomings that this scheme is that light guide plate lower surface is ladder-like, and light guide plate monnolithic case is slope shape, increases entire liquid crystal mould
The thickness of group, is unfavorable for the lightening of display device.
Invention content
(1) technical problems to be solved
The object of the present invention is to provide one kind reducing LED quantity under conditions of not generating heat spot, and does not increase module
Edge-type light guide plate component, side entrance back module and the display device of thickness.
(2) technical solution
To achieve the above object, the present invention provides a kind of edge-type light guide plate component, which includes successively
The first light guide plate, polarization beam splitter and the second light guide plate of fitting, the side of first light guide plate have incidence surface and with
The opposite terminal surface of the incidence surface；The incidence surface is equipped with polarization generator, and the polarization generator is used for will be described in directive
The light of incidence surface is converted into the linearly polarized light reflected by polarization beam splitter；The terminal surface is equipped with quarter wave plate；The quarter wave plate
Outside be equipped with the first reflecting surface；The one side of second light guide plate far from the polarization beam splitter is equipped with several and is used for light extraction
Site.
Preferably, on by the terminal surface to the direction of the incidence surface, the density of the site gradually increases.
Preferably, the quarter wave plate is fitted on the terminal surface.
Preferably, first reflecting surface is fitted on the quarter wave plate.
Preferably, first reflecting surface is reflective mirror.
Preferably, the polarization generator includes polarization spectro layer, the second reflecting surface and half-wave plate；The polarization spectro layer
Be arranged between light source and the incidence surface and with the incidence surface angle at 45 °；Second reflecting surface setting it is described enter
The outside of smooth surface is simultaneously parallel with the polarization spectro layer, and the light for reflecting the polarization spectro layer is reflected towards described
Incidence surface；The half-wave plate is arranged between second reflecting surface and the incidence surface.
Preferably, the polarization spectro layer is formed in a rectangular prism.
Preferably, second reflecting surface is a polarization spectro layer.
Preferably, second reflecting surface is formed in a rectangular prism.
The present invention also provides a kind of side entrance back module, the side entrance back module include light source and as described above
Edge-type light guide plate component.
Preferably, the light source is laser.
The present invention also provides a kind of display device, which includes edge-type light guide plate component as described above
(3) advantageous effect
A kind of edge-type light guide plate component provided by the invention, the light projected by site at least all have passed through one first
The mixing of the length of light guide plate, therefore light source spacing can be increased in design, realization is reduced under conditions of not generating heat spot
The purpose of quantity of light source can reduce cost, heat radiation performance, and will not increase the integral thickness of light guide plate assembly.In addition, adopting
The backlight module and display device designed with above-mentioned edge-type light guide plate component also has manufacturing cost low, and heat dissipation durability is good,
The more frivolous advantage of integral thickness.
Description of the drawings
Fig. 1 is the schematic diagram of side-edge type backlight in the prior art.
Fig. 2 is a kind of schematic diagram of edge-type light guide plate in the prior art.
Fig. 3 is the vertical view of edge-type light guide plate described in Fig. 2.
Fig. 4 is a kind of schematic diagram of edge-type light guide plate component of the embodiment of the present invention.
Fig. 5 is the schematic diagram of the polarization generator of the embodiment of the present invention.
Reference numeral：
1, the first light guide plate；2, the second light guide plate；21, site；3, polarization beam splitter；4, light source；5, polarization generator；
51, polarization spectro layer；52, the second reflecting surface；53, half-wave plate；6, quarter wave plate；7, the first reflecting surface；8, anti-by polarization beam splitter
The linearly polarized light penetrated；9, the linearly polarized light transmitted by polarization beam splitter；10, light guide plate；L, light guide plate；AA, effectively display
Region；D, LED spacing；E, step inclined plane.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is described in further detail.Implement below
Example is not limited to the scope of the present invention for illustrating the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connection " should be done
It broadly understood, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be directly connected,
It can also be indirectly connected through an intermediary.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
As shown in figure 4, a kind of edge-type light guide plate component provided in an embodiment of the present invention, including what is be bonded successively first lead
The side of tabula rasa 1, polarization beam splitter 3 and the second light guide plate 2, the first light guide plate 1 has incidence surface and the end opposite with incidence surface
End face；Incidence surface is equipped with polarization generator 5, and polarization generator 5 is for converting by polarization beam splitter the light of directive incidence surface to
The linearly polarized light 8 of reflection, the polarization generator 5 can both be arranged in the outside of incidence surface, can also be fitted on incidence surface, very
To the first light guide plate 1 being embedded on the inside of incidence surface；Terminal surface is equipped with quarter wave plate 6, likewise, the quarter wave plate can both be set
It sets in the outside of terminal surface, can also be fitted on terminal surface, or be embedded in the first light guide plate 1 on the inside of terminal surface；1/4
The outside of wave plate is equipped with the first reflecting surface 7, which can be reflective mirror, and terminal surface, quarter wave plate 6 and first reflect
Face 7 is preferably affixed successively, and the decaying for avoiding light path from shifting with luminous energy by refraction can also enhance the globality of component；The
Two one sides of the light guide plate 2 far from polarization beam splitter 3 are equipped with several sites 21 for being used for light extraction.
What the light that the LED light source 4 positioned at incidence surface side is sent out was transformed to be reflected by polarization beam splitter through polarization generator 5
Linearly polarized light 8 is simultaneously refracted into the first light guide plate 1, and the linearly polarized light 8 that this is reflected by polarization beam splitter is in the upper of the first light guide plate 1
Surface is totally reflected, is equally reflected through polarization beam splitter 3 in lower surface, thus incident beam in the first light guide plate 1 forward
It propagates, and there is no beam projecting.Light is reflected after propagating arrival terminal surface by the first reflecting surface 7, and passes through quarter wave plate 6 back and forth,
Polarization state is changed, and is changed into the linearly polarized light mutually orthogonal with the linearly polarized light 8 reflected by polarization beam splitter, i.e., by polarization spectro
The linearly polarized light 9 of film transmission, and this linearly polarized light transmitted by polarization beam splitter can be in the first light guide plate 1 and the second light guide plate 2
Assembly in inversely total reflection propagate, in the process, the light inversely propagated passes through the site 21 in the outside of the second light guide plate 2
It projects.
By the above process it is found that the light finally projected by site 21 at least all have passed through the length of first light guide plate 1
Mixing can avoid the generation of heat spot it is possible thereby to realize sufficient light mixing effect.Therefore can increase in design
LED spacing realizes the purpose for reducing LED quantity under conditions of not generating heat spot, reduces cost, improve thermal diffusivity
Energy.Moreover, because the second light guide plate 2 is only to play the role of total reflection and light extraction, therefore its thickness can be arranged thin as possible,
So the integral thickness of light guide plate assembly is approximately equal to the thickness of the first light guide plate 1, i.e. this light guide plate assembly hardly increases
The thickness of backlight module.
Wherein, on the direction by terminal surface to incidence surface, the density of site 21 gradually increases.By the terminal surface extremely
On the direction of the incidence surface, initial segment site 21 is distributed sparse, it is ensured that has enough light to can continue to keep
Reflection is propagated, and has light injection to ensure end stage also；On the other hand, end stage site 21 is distributed comparatively dense, can make to remain
Remaining reflection is propagated light and is all projected as far as possible, does not waste；Moreover, the light intensity that propagation is reflected on the direction of propagation be by
It is decrescence weak, and site 21 can just be formed complementation by sparse to intensive distribution form with this, make the light extraction on entire light-emitting surface
Amount is uniform.
In addition, as shown in figure 5, polarization generator 5 includes polarization spectro layer 51, the second reflecting surface 52 and half-wave plate 53；Partially
The beam splitter layer 51 that shakes be arranged between light source 4 and incidence surface and with incidence surface angle at 45 °, for by light source 4 resolve into two groups it is mutual
For orthogonal linearly polarized light, i.e., the linearly polarized light reflected by polarization beam splitter and the linearly polarized light transmitted by polarization beam splitter,
In, by the linearly polarized light of polarization beam splitter reflection across polarization spectro layer and directive incidence surface, and by polarization beam splitter transmission
Linearly polarized light is reflected；Second reflecting surface 52 is arranged in the outside of incidence surface and parallel with polarization spectro layer 51, for that will polarize
The linearly polarized light transmitted by polarization beam splitter that beam splitter layer 51 reflects is reflected towards incidence surface again；Half-wave plate 53 is arranged second
Between reflecting surface 52 and incidence surface, the polarization state of the linearly polarized light for will be transmitted by polarization beam splitter changes, and becomes being polarized
The linearly polarized light of spectro-film reflection.Incident light source 4 can not only be transformed into and be polarized by the polarization generator 5 of the present embodiment as a result,
The linearly polarized light 8 of spectro-film reflection, and transition process does not have energy loss.
Wherein, polarization spectro layer 51 is preferably formed in a rectangular prism, that is, forms a polarization splitting prism, due to
Polarization spectro layer 51 has the special angle relationship of 45° angle with incidence surface, therefore sets polarization spectro layer 51 to polarization spectro
Prism can be more easily bonded with incidence surface, and can ensure polarization spectro layer 51 steadily with incidence surface angle at 45 °.
Since the effect of the second reflecting surface is to be formed to reflect to linearly polarized light, so the second reflecting surface 52 is either reflective
Mirror can also be a polarization spectro layer, but preferably set the second reflecting surface 52 to a polarization spectro layer, because second is anti-
It penetrates face 52 to need to carry out incident light 45 ° of reflection, if so using planar reflective mirror, the accuracy at angle of inclination is difficult
Control.And set the second reflecting surface 52 to a polarization spectro layer, and the second reflecting surface 52 is formed in a rectangular prism
It is interior, a polarization splitting prism is formed, not only angle of inclination is accurately controlled, but also can be with adjacent polarization point
Light prism and half-wave plate form nature splicing, easy to connect, and overall structure is stablized.
The present embodiment additionally provides a kind of side entrance back module, which includes light source 4 and institute as above
The edge-type light guide plate component stated, wherein since the light mixing distance of above-mentioned edge-type light guide plate component is longer, this side entering type
The quantity positioned at one side light source 4 of light guide plate incidence surface can be greatly decreased in backlight module, not only saved cost in this way, but also
It improves heat dissipation performance, increased the stability for adding product.In addition, since the light mixing distance of edge-type light guide plate component has guarantor
Card, therefore laser can be selected as light source 4, thus make backlight 4 that there is better monochromaticjty and brightness.
The present embodiment additionally provides a kind of display device, which includes edge-type light guide plate group as described above
Part can not only be greatly reduced display device cost, can also promote the resistance to of product since 4 quantity of light source is greatly decreased
The property used.And since the integral thickness of its light guide plate assembly is relatively thin, the thickness of display device will not be increased, it does not influence to show
Device develops towards more frivolous direction, good market prospect.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and replacement can also be made, these improve and replace
Also it should be regarded as protection scope of the present invention.
Claims (12)
1. a kind of edge-type light guide plate component, which is characterized in that including the first light guide plate, the polarization beam splitter and being bonded successively
The side of two light guide plates, first light guide plate has incidence surface and the terminal surface opposite with the incidence surface；It is described enter light
Face is equipped with polarization generator, and the polarization generator is reflected for converting the light of incidence surface described in directive to by polarization beam splitter
Linearly polarized light；The terminal surface is equipped with quarter wave plate；The outside of the quarter wave plate is equipped with the first reflecting surface；Described second is guide-lighting
One side of the plate far from the polarization beam splitter is equipped with several sites for being used for light extraction.
2. edge-type light guide plate component according to claim 1, which is characterized in that by the terminal surface to it is described enter light
On the direction in face, the density of the site gradually increases.
3. edge-type light guide plate component according to claim 1, which is characterized in that the quarter wave plate is fitted in the end
On end face.
4. edge-type light guide plate component according to claim 1, which is characterized in that first reflecting surface is fitted in described
On quarter wave plate.
5. edge-type light guide plate component according to claim 1, which is characterized in that first reflecting surface is reflective mirror.
6. edge-type light guide plate component according to any one of claims 1 to 5, which is characterized in that the polarization generator
Including polarization spectro layer, the second reflecting surface and half-wave plate；The polarization spectro layer is arranged between light source and the incidence surface, simultaneously
With incidence surface angle at 45 °；Second reflecting surface be arranged the outside of the incidence surface and with the polarization spectro layer
Parallel, the light for reflecting the polarization spectro layer is reflected towards the incidence surface；Half-wave plate setting is described the
Between two reflectings surface and the incidence surface.
7. edge-type light guide plate component according to claim 6, which is characterized in that the polarization spectro layer is formed in one
In rectangular prism.
8. edge-type light guide plate component according to claim 6, which is characterized in that second reflecting surface is a polarization
Beam splitter layer.
9. edge-type light guide plate component according to claim 6, which is characterized in that second reflecting surface is formed in one
In rectangular prism.
10. a kind of side entrance back module, including light source and edge-type light guide plate as described in any one of claim 1 to 9
Component.
11. side entrance back module according to claim 10, which is characterized in that the light source is laser.
12. a kind of display device, which is characterized in that including edge-type light guide plate group as described in any one of claim 1 to 9
Part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610331040.3A CN105785499B (en) | 2016-05-18 | 2016-05-18 | Edge-type light guide plate component, side entrance back module and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610331040.3A CN105785499B (en) | 2016-05-18 | 2016-05-18 | Edge-type light guide plate component, side entrance back module and display device |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018181729A (en) * | 2017-04-19 | 2018-11-15 | 株式会社ジャパンディスプレイ | Lighting device |
| CN109031787A (en) * | 2018-08-31 | 2018-12-18 | 京东方科技集团股份有限公司 | A kind of front located light source and display device |
| CN111296899B (en) * | 2018-11-23 | 2024-11-15 | 湖南中烟工业有限责任公司 | Low-temperature smoking device with brightness display function |
| CN109387900A (en) * | 2018-11-27 | 2019-02-26 | 深圳市隆利科技股份有限公司 | Light guide plate, backlight module and the liquid crystal display device of adjustable emergent light angle |
| CN111983835A (en) * | 2020-08-17 | 2020-11-24 | 武汉华星光电技术有限公司 | Display device |
| CN116699900A (en) * | 2023-06-20 | 2023-09-05 | 重庆惠科金渝光电科技有限公司 | Light board assembly, backlight module and display device |
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| US20160091750A1 (en) * | 2014-09-30 | 2016-03-31 | Shenzhen China Star Optoelectronics Technology Co. Ltd. | Liquid crystal display device |
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| US6352350B1 (en) * | 2000-06-01 | 2002-03-05 | Agilent Technologies, Inc. | High efficiency flat illuminator for liquid crystal micro-display |
| CN1908753A (en) * | 2005-08-05 | 2007-02-07 | 鸿富锦精密工业（深圳）有限公司 | Polarized light converter, method for fabrication and backlight component |
| CN101071225A (en) * | 2006-05-11 | 2007-11-14 | 三星电子株式会社 | Illuminating apparatus providing polarized color light and display apparatus including the same |
| CN104089221A (en) * | 2014-07-03 | 2014-10-08 | 京东方科技集团股份有限公司 | Side-type backlight module and display device |
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| CN105785499A (en) | 2016-07-20 |
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