CN104421770A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN104421770A CN104421770A CN201310412311.4A CN201310412311A CN104421770A CN 104421770 A CN104421770 A CN 104421770A CN 201310412311 A CN201310412311 A CN 201310412311A CN 104421770 A CN104421770 A CN 104421770A
- Authority
- CN
- China
- Prior art keywords
- light
- backlight module
- scattering
- light source
- emitting window
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 7
- 238000000149 argon plasma sintering Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- 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
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Landscapes
- 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 invention discloses a backlight module and a display device, relates to the technical field of liquid crystal display, and aims to reduce the thickness of the backlight module without lowering the light-emitting efficiency of a light source. The backlight module comprises a light guide plate and the light source, wherein the light guide plate comprises a scattering surface, a light-emitting surface and a light-entering surface; the light source and the light guide plate are positioned on the same plane; the light source comprises a light outlet; the light outlet is formed towards the light guide plate, and is opposite to the light-entering surface; the light outlet gradually increases along the light ray emitting direction of the light source; the light outlet is formed obliquely towards the scattering surface or the light outlet is formed obliquely towards the light-emitting surface, and the light-emitting surface is provided with a reflecting structure which can be used for reflecting light rays emitted by the light source onto the scattering surface. The backlight module is applied to a liquid crystal display device.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly relate to a kind of backlight module and display unit.
Background technology
Lcd technology has been widely used in the electronic products such as computer screen, mobile phone, digital camera, DV, PDA, liquid crystal panel is crucial display module, but itself is not luminous, need to arrange backlight module just can show, backlight module and liquid crystal panel fit together and form a complete liquid crystal indicator.
As shown in Figure 1, existing backlight module generally comprises light guide plate 1 and light source 2, the light-emitting window 21 of light source 2 is vertically arrange, for improving luminous efficiency, need the light source 2 using light-emitting window 21 larger, need the light guide plate 1 that thickness is larger to coordinate with light source 2 for this reason, this is unfavorable for realizing the lightening of backlight module, if reduce backlight module thickness, then need the light-emitting window 21 reducing light source 2, to coordinate frivolous backlight module, but this can make the reduction of the luminous efficiency of light source 2 cause energy loss, thus affects the display effect of liquid crystal indicator.
Summary of the invention
Embodiments of the invention provide a kind of backlight module and display unit, when not reducing light source light-emitting efficiency, can reduce backlight module thickness.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of backlight module, comprise light guide plate and light source, described light guide plate comprises scattering surface, exiting surface and incidence surface, described light source and described light guide plate are arranged on same plane, described light source comprises light-emitting window, described light-emitting window is arranged towards described light guide plate, relative with described incidence surface, described light-emitting window increases gradually along described source light injection direction, described light-emitting window is obliquely installed to described scattering surface, or described light-emitting window to be obliquely installed and described exiting surface is provided with the backlight module that the light reflection that described light source can be sent provides to the catoptric arrangement embodiment of the present invention on described scattering surface to described exiting surface,
Further, described scattering surface comprises the scattering region be made up of some scattering points.
Further, described catoptric arrangement is located near described light source side on exiting surface, and is arranged at beyond the drop shadow spread of described scattering region on described exiting surface.
Further, the light that described catoptric arrangement reflects covers described scattering region completely.
Particularly, described catoptric arrangement is reflector plate or reflectance coating.
Further, described light-emitting window comprises light-emitting face, and described light-emitting face is parallel with described incidence surface.
Further, described exiting surface is provided with groove near described light source side, and described catoptric arrangement is arranged in described groove.
Further, the upper surface of described catoptric arrangement does not exceed described exiting surface.
The present invention embodiment still provides a kind of display unit on the other hand, comprises the backlight module described in above arbitrary technical scheme.
The backlight module that embodiments of the invention provide, by being obliquely installed to described scattering surface by described light-emitting window, the light that light source can be made to send is radiated on described scattering surface by described incidence surface, through scattering, light is penetrated from described exiting surface, by described light-emitting window being obliquely installed to described exiting surface and arranging the light reflection that described light source can be sent to the catoptric arrangement on described scattering surface on described exiting surface, exiting surface described in the light directive that described light source can be made to send also is reflexed on described scattering surface by described catoptric arrangement, after scattering, make light penetrate from described exiting surface, because light-emitting window is obliquely installed, and described light-emitting window increases gradually along described source light injection direction, making to reduce described light-emitting window just can make the thickness of described light source reduce, thus the thickness of the light guide plate coordinated with described light source also can be reduced, owing to not reducing light-emitting window, the luminous efficiency of described light source does not reduce, thus achieve when not reducing light source light-emitting efficiency, reduce the thickness of backlight module, be conducive to manufacturing more frivolous display unit.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing backlight module;
Fig. 2 is the structural representation of a kind of embodiment that the light-emitting window of embodiment of the present invention backlight module tilts to scattering surface;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is the structural representation of a kind of embodiment that the light-emitting window of embodiment of the present invention backlight module tilts to exiting surface;
Fig. 5 is the structural representation of the another kind of embodiment that the light-emitting window of embodiment of the present invention backlight module tilts to scattering surface.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present invention backlight module, display unit are described in detail.
In describing the invention, it will be appreciated that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
With reference to Fig. 2, Fig. 3, Fig. 4, Fig. 5, backlight module of the present invention, comprise light guide plate 1 and light source 2, light guide plate 1 comprises scattering surface 13, exiting surface 11 and incidence surface 12, light source 2 and light guide plate 1 are arranged on same plane, light source 1 comprises light-emitting window 21, light-emitting window 21 is arranged towards light guide plate 1, relative with incidence surface 12, light-emitting window 21 increases gradually along source light injection direction, light-emitting window 21 is obliquely installed to scattering surface 13, or light-emitting window 21 to be obliquely installed and described exiting surface 11 is provided with the light reflection that described light source 2 can be sent to the catoptric arrangement 4 on described scattering surface 13 to described exiting surface 11.
The backlight module that embodiments of the invention provide, with reference to Fig. 4, by being obliquely installed to described scattering surface 13 by described light-emitting window 21, the light that light source 2 can be made to send is radiated on described scattering surface 13 by described incidence surface 12, through scattering, light is penetrated from described exiting surface 11, with reference to Fig. 2, Fig. 3, Fig. 5, by described light-emitting window 21 being obliquely installed to described exiting surface 11 and arranging the light reflection that described light source 2 can be sent to the catoptric arrangement 4 on described scattering surface 13 on described exiting surface 11, the light directive exiting surface 11 that light source 2 can be made to send also is reflexed on described scattering surface 13 by described catoptric arrangement 4, after scattering, make light penetrate from described exiting surface 11, comparison diagram 1 and Fig. 2 can find out, light-emitting window width in the embodiment of the present invention and light-emitting window width of the prior art are h, because light-emitting window 21 is obliquely installed, and described light-emitting window 21 increases gradually along described light source 2 light injection direction, the length of light-emitting window 21 in the vertical direction be obliquely installed is less than the length of light-emitting window 21 in the vertical direction vertically arranged, and then can when the width h of light-emitting window 21 is constant, the thickness H1 of light source 2 is made to be less than light source thickness H of the prior art, and then make the thickness of the light guide plate 1 coordinated with described light source 2 also can reduce with the thickness of described light source 2 and reduce, owing to not reducing light-emitting window 21, the luminous efficiency of described light source 2 does not reduce, thus achieve when not reducing light source 2 luminous efficiency, reduce the thickness of backlight module, be conducive to manufacturing more frivolous display unit.
The light scattering that light source 2 can send by scattering surface 13 is to exiting surface, penetrated by exiting surface 11 again, scattering surface 13 can be various structures, such as, some scattering points 3 can be set at scattering surface 13, scattering point 3 can be bulge-structure, the cross section of affiliated bulge-structure can be polygon or circular arc type, be arranged on scattering surface 13 in netted, the mode that scattering point 3 can print is imprinted on scattering surface 13, also can with the mode of non-printing by scattering point 3 when light guide plate is shaped direct forming on scattering surface 113, because scattering point 3 can be various shape, and in net distribution on scattering surface 13, described scattering point 3 can scattering from multiple directions light and by light scattering to all directions, and by the scattering between each scattering point, light is transmitted between each scattering point, thus cover scattering surface 13, improve the light utilization that multiple light courcess 2 sends, make the light scattering to exiting surface 11 more even.
In order to improve the illumination effect of backlight module, catoptric arrangement 4 can be located on exiting surface 11 near described light source 2 side, and be arranged at beyond the drop shadow spread of described scattering region on described exiting surface 11, the light scattering to exiting surface 11 from scattering region can be avoided thus to be launched structure 4 reflect, reduce the light-emitting area of exiting surface 11, affect the illumination effect of backlight module.
More even in order to make from the irradiant brightness of exiting surface 11, described scattering region is covered completely by the light adjusting the angle of inclination of light-emitting window 21, the position of light guide plate 1 thickness and catoptric arrangement 4 makes catoptric arrangement 4 reflect, the light that light source sends can be radiated at whole scattering region after catoptric arrangement reflection, whole scattering points 3 of scattering region all can the light that sends of scattering light source 2 thus, makes the light that penetrated by exiting surface 11 after scattering more even.
Catoptric arrangement 4 can be various structures, preferred reflector plate or reflectance coating, and described reflectance coating can be covered in exiting surface 11, because described reflectance coating is only thin film structure, therefore, can reduce the thickness of backlight module; Described reflector plate can be overlapped on exiting surface 11 and light source 2 or one end is arranged at exiting surface 11, and one end is cantilever, easy for installation, is easy to adjusting position.
For making back light module unit structure compact, light-emitting window 21 can comprise light-emitting face 22, light-emitting face 22 can be parallel with incidence surface 12, thus can by light-emitting face 22 and the close setting of incidence surface 12, and make light-emitting face 22 and incidence surface 12 gap uniformity, thus light source near allowing light face arrange, thus can reduce backlight module width, and make back light module unit structure compacter.
With reference to Fig. 4, in order to reduce the thickness of backlight module further, groove 5 can be offered near light source 2 side on exiting surface 11, can catoptric arrangement 4 be arranged in groove 5, can catoptric arrangement 4 be embedded in exiting surface 11 thus, reduce the integral thickness of catoptric arrangement 4 and light guide plate 1, thus backlight module thickness is reduced further.
Preferably, the upper surface of catoptric arrangement 4 can not be arranged higher than exiting surface 11, catoptric arrangement 4 can be made to be embedded in light guide plate 1, the upper surface of catoptric arrangement 4 is not higher than exiting surface 11, avoid because catoptric arrangement 4 has certain thickness and backlight module integral thickness is increased, further reducing the thickness of backlight module thus.
The present invention embodiment still provides a kind of display unit on the other hand, comprises the backlight module described in above arbitrary technical scheme.Because the backlight module used in the display unit of the present embodiment is identical with the backlight module provided in each embodiment of above-mentioned backlight module, therefore the two can solve identical technical problem, and reaches identical Expected Results.
Other formations about the display unit of the embodiment of the present invention wait known by those skilled in the art, no longer describe in detail at this.
In the description of this description, specific features, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (9)
1. a backlight module, comprise light guide plate and light source, described light guide plate comprises scattering surface, exiting surface and incidence surface, described light source and described light guide plate are arranged on same plane, and described light source comprises light-emitting window, and described light-emitting window is arranged towards described light guide plate, relative with described incidence surface, described light-emitting window increases gradually along described source light injection direction, it is characterized in that
Described light-emitting window is obliquely installed to described scattering surface; Or
Described light-emitting window to be obliquely installed and described exiting surface is provided with the light reflection that described light source can be sent to the catoptric arrangement on described scattering surface to described exiting surface.
2. backlight module according to claim 1, is characterized in that, described scattering surface comprises the scattering region be made up of some scattering points.
3. backlight module according to claim 2, is characterized in that, described catoptric arrangement is located near described light source side on exiting surface, and is arranged at beyond the drop shadow spread of described scattering region on described exiting surface.
4. backlight module according to claim 2, is characterized in that, the light that described catoptric arrangement reflects covers described scattering region completely.
5. backlight module according to claim 1, is characterized in that, described catoptric arrangement is reflector plate or reflectance coating.
6. the backlight module according to any one of Claims 1 to 5, is characterized in that, described light-emitting window comprises light-emitting face, and described light-emitting face is parallel with described incidence surface.
7. the backlight module according to any one of Claims 1 to 5, is characterized in that, described exiting surface is provided with groove near described light source side, and described catoptric arrangement is arranged in described groove.
8. backlight module according to claim 7, is characterized in that, the upper surface of described catoptric arrangement does not exceed described exiting surface.
9. a display unit, is characterized in that, comprises the backlight module according to any one of claim 1 ~ 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310412311.4A CN104421770B (en) | 2013-09-11 | 2013-09-11 | A kind of backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310412311.4A CN104421770B (en) | 2013-09-11 | 2013-09-11 | A kind of backlight module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104421770A true CN104421770A (en) | 2015-03-18 |
| CN104421770B CN104421770B (en) | 2018-01-23 |
Family
ID=52971530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310412311.4A Active CN104421770B (en) | 2013-09-11 | 2013-09-11 | A kind of backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104421770B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757533A (en) * | 2016-03-03 | 2016-07-13 | 深圳市华星光电技术有限公司 | Light source, backlight module and display device |
| CN106226951A (en) * | 2016-08-08 | 2016-12-14 | 广州创维平面显示科技有限公司 | A kind of side entrance back module and display device |
| CN107505671A (en) * | 2017-09-25 | 2017-12-22 | 京东方科技集团股份有限公司 | Backlight module, its preparation method and include its display device |
| CN107620880A (en) * | 2017-10-31 | 2018-01-23 | 武汉天马微电子有限公司 | Backlight module and display device |
| CN108254970A (en) * | 2017-12-29 | 2018-07-06 | 宁波东辉光电科技有限公司 | A kind of straight-down negative optics backlight diaphragm structure |
| JP2018181729A (en) * | 2017-04-19 | 2018-11-15 | 株式会社ジャパンディスプレイ | Lighting device |
| CN111650684A (en) * | 2019-03-04 | 2020-09-11 | 光耀科技股份有限公司 | light guide plate |
| WO2020221641A1 (en) * | 2019-04-29 | 2020-11-05 | Signify Holding B.V. | A light emitting device |
| CN112797369A (en) * | 2019-11-14 | 2021-05-14 | 常州星宇车灯股份有限公司 | A light-emitting device for adjusting the light of light guided into the light-end light source |
| CN114624810A (en) * | 2022-05-17 | 2022-06-14 | 深圳市北泰显示技术有限公司 | Backlight unit light source inclined touch screen |
| CN114624811A (en) * | 2022-05-17 | 2022-06-14 | 深圳市北泰显示技术有限公司 | Production method of display screen backlight module |
| WO2025180441A1 (en) * | 2024-02-29 | 2025-09-04 | 深圳引望智能技术有限公司 | Backlight module, display screen, and vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1501138A (en) * | 2002-11-18 | 2004-06-02 | 鸿富锦精密工业（深圳）有限公司 | Light guide plate for backlight module |
| CN101464594A (en) * | 2007-12-19 | 2009-06-24 | 上海天马微电子有限公司 | Backlight module |
| CN201540425U (en) * | 2009-07-24 | 2010-08-04 | 康佳集团股份有限公司 | Back light module device of liquid crystal display |
| JP2011238448A (en) * | 2010-05-10 | 2011-11-24 | Hitachi Consumer Electronics Co Ltd | Backlight, its manufacturing method, and liquid crystal display |
| KR101106176B1 (en) * | 2009-06-29 | 2012-01-20 | 서울반도체 주식회사 | Inclined LED package and backlight unit including the same |
| JP2012053988A (en) * | 2010-08-31 | 2012-03-15 | Hitachi Consumer Electronics Co Ltd | Backlight unit and image display device using the same |
| CN202791686U (en) * | 2012-09-29 | 2013-03-13 | 东莞市亚星半导体有限公司 | A backlight module for an ultra-thin liquid crystal display |
-
2013
- 2013-09-11 CN CN201310412311.4A patent/CN104421770B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1501138A (en) * | 2002-11-18 | 2004-06-02 | 鸿富锦精密工业（深圳）有限公司 | Light guide plate for backlight module |
| CN101464594A (en) * | 2007-12-19 | 2009-06-24 | 上海天马微电子有限公司 | Backlight module |
| KR101106176B1 (en) * | 2009-06-29 | 2012-01-20 | 서울반도체 주식회사 | Inclined LED package and backlight unit including the same |
| CN201540425U (en) * | 2009-07-24 | 2010-08-04 | 康佳集团股份有限公司 | Back light module device of liquid crystal display |
| JP2011238448A (en) * | 2010-05-10 | 2011-11-24 | Hitachi Consumer Electronics Co Ltd | Backlight, its manufacturing method, and liquid crystal display |
| JP2012053988A (en) * | 2010-08-31 | 2012-03-15 | Hitachi Consumer Electronics Co Ltd | Backlight unit and image display device using the same |
| CN202791686U (en) * | 2012-09-29 | 2013-03-13 | 东莞市亚星半导体有限公司 | A backlight module for an ultra-thin liquid crystal display |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017147953A1 (en) * | 2016-03-03 | 2017-09-08 | 深圳市华星光电技术有限公司 | Light source, backlight module and display device |
| CN105757533A (en) * | 2016-03-03 | 2016-07-13 | 深圳市华星光电技术有限公司 | Light source, backlight module and display device |
| CN106226951B (en) * | 2016-08-08 | 2019-12-10 | 广州创维平面显示科技有限公司 | Side-in backlight module and display device |
| CN106226951A (en) * | 2016-08-08 | 2016-12-14 | 广州创维平面显示科技有限公司 | A kind of side entrance back module and display device |
| JP2018181729A (en) * | 2017-04-19 | 2018-11-15 | 株式会社ジャパンディスプレイ | Lighting device |
| CN107505671A (en) * | 2017-09-25 | 2017-12-22 | 京东方科技集团股份有限公司 | Backlight module, its preparation method and include its display device |
| US11340393B2 (en) | 2017-09-25 | 2022-05-24 | Fuzhou Boe Optoelectronics Technology Co., Ltd. | Backlight module including side surface having acute angle manufacturing method thereof and display device and illuminating device comprising the same |
| US10768360B2 (en) | 2017-10-31 | 2020-09-08 | Wuhan Tianma Micro-Electronics Co., Ltd. | Backlight module and display device |
| CN107620880A (en) * | 2017-10-31 | 2018-01-23 | 武汉天马微电子有限公司 | Backlight module and display device |
| CN108254970A (en) * | 2017-12-29 | 2018-07-06 | 宁波东辉光电科技有限公司 | A kind of straight-down negative optics backlight diaphragm structure |
| CN111650684A (en) * | 2019-03-04 | 2020-09-11 | 光耀科技股份有限公司 | light guide plate |
| WO2020221641A1 (en) * | 2019-04-29 | 2020-11-05 | Signify Holding B.V. | A light emitting device |
| CN113710952A (en) * | 2019-04-29 | 2021-11-26 | 昕诺飞控股有限公司 | Light emitting apparatus |
| CN113710952B (en) * | 2019-04-29 | 2024-05-31 | 昕诺飞控股有限公司 | Light emitting device |
| CN112797369A (en) * | 2019-11-14 | 2021-05-14 | 常州星宇车灯股份有限公司 | A light-emitting device for adjusting the light of light guided into the light-end light source |
| CN114624810A (en) * | 2022-05-17 | 2022-06-14 | 深圳市北泰显示技术有限公司 | Backlight unit light source inclined touch screen |
| CN114624811A (en) * | 2022-05-17 | 2022-06-14 | 深圳市北泰显示技术有限公司 | Production method of display screen backlight module |
| CN114624811B (en) * | 2022-05-17 | 2022-08-16 | 深圳市北泰显示技术有限公司 | Production method of display screen backlight module |
| WO2025180441A1 (en) * | 2024-02-29 | 2025-09-04 | 深圳引望智能技术有限公司 | Backlight module, display screen, and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104421770B (en) | 2018-01-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104421770A (en) | Backlight module and display device | |
| US10007051B2 (en) | Backlight module and display device | |
| CN105954933B (en) | Display device and preparation method thereof | |
| CN101571264B (en) | LED backlight module | |
| CN103032766A (en) | Backlight module and display device | |
| CN102081187A (en) | Spliced type light guide plate structure and backlight module | |
| CN103759175B (en) | A kind of backlight and display device | |
| CN102865516A (en) | Backlight module and light-emitting diode (LED) display | |
| CN201954400U (en) | LED mixed light backlight source | |
| CN106019713A (en) | Collimation backlight source and display device | |
| CN109683398A (en) | Backlight module and display device | |
| CN103939799B (en) | A kind of backlight module and liquid crystal indicator | |
| CN209690675U (en) | A kind of backlight module and display device | |
| JP2007258152A (en) | Backlight unit and display device provided with the same | |
| CN103995311A (en) | Light guide plate, backlight module and display device | |
| WO2016169173A1 (en) | Light guide plate, backlight source and display device | |
| CN201803318U (en) | Light guide plate, back light module, and display device employing back light module | |
| CN202303056U (en) | Backlight and display device | |
| CN106154397A (en) | Backlight module and transreflective liquid crystal display module for Transflective display floater | |
| CN205227050U (en) | Backlight module and display | |
| CN103925515A (en) | Backlight module and display device | |
| CN105465738A (en) | Lens, direct-light-type backlight module and liquid crystal display device | |
| CN103256563A (en) | Reflective film, backlight module and display device | |
| CN203349056U (en) | Light-guiding type liquid crystal display backlight module | |
| CN103017037A (en) | Backlight source structure and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |