WO2018149025A1 - 一种超薄背光模组 - Google Patents

一种超薄背光模组 Download PDF

Info

Publication number
WO2018149025A1
WO2018149025A1 PCT/CN2017/079207 CN2017079207W WO2018149025A1 WO 2018149025 A1 WO2018149025 A1 WO 2018149025A1 CN 2017079207 W CN2017079207 W CN 2017079207W WO 2018149025 A1 WO2018149025 A1 WO 2018149025A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
lens
hole
guide plate
light guide
Prior art date
Application number
PCT/CN2017/079207
Other languages
English (en)
French (fr)
Inventor
曹文乐
林清云
刘金涌
Original Assignee
广州毅昌科技股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 广州毅昌科技股份有限公司 filed Critical 广州毅昌科技股份有限公司
Publication of WO2018149025A1 publication Critical patent/WO2018149025A1/zh

Links

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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into 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, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into 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, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses

Definitions

  • the invention is used in the technical field of backlight modules, in particular to an ultra-thin backlight module.
  • LED-backlit LCD TVs have become the mainstream of TV due to their long life, wide color gamut and low energy consumption.
  • LED backlighting there are two main ways of LED backlighting, one is side-in type and the other is straight-down type, both of which have advantages and disadvantages.
  • the side-entry backlight is arranged on the side of the light guide plate, and the surface light is achieved by the design of the light guide plate.
  • the advantage is that it is thin and light, but its heat dissipation problem and local light control problem have always been an industry problem.
  • the direct type backlight is arranged at the lower end of the diffusion plate, and the surface of the diffusion plate is diffused to achieve the surface light effect.
  • the advantage is that the LED backlight can be divided into several cells and the switches of each cell can be controlled, which can achieve excellent performance.
  • the downside is that the appearance cannot be ultra-thin.
  • the optical lens occupies a certain thickness, the matching bottleneck with the LED at the same time makes it impossible to reduce the thickness of the backlight to 10 mm or less.
  • the present invention provides an ultra-thin backlight module capable of reducing the thickness of a direct-lit backlight module while maintaining picture quality.
  • an ultra-thin backlight module comprising a light guide plate and a light reflecting structure disposed at the bottom of the light guide plate, wherein the light guide plate is provided with at least one hole-shaped structure, Providing a light source assembly at the hole-shaped structure, an inner wall surface of the hole-shaped structure forming a light incident surface, the light source assembly comprising a light source and being embedded in the hole-shaped structure and capable of feeding light of the light source into the light surface A lens in the light guide plate.
  • the hole-shaped structure is a blind hole or a through hole opened at the bottom of the light guide plate.
  • the light guide plate is provided with a plurality of hole-shaped structures, and the hole-shaped structures are evenly distributed on the light guide plate.
  • the top of the light guide plate forms a light surface, and the light source assembly is not higher than the light exit surface of the light guide plate.
  • a bottom of the lens is provided with a light storage chamber for accommodating the light source, an inner wall surface of the light storage chamber forms a lens light incident surface, and an outer wall surface of the lens opposite to the light incident surface Forming a light exiting surface of the lens, the top of the lens is provided with a concave tapered hole, and the hole wall of the tapered hole forms a lens reflecting surface that can totally reflect the light entering through the light incident surface of the lens to the light exiting surface of the lens.
  • the lens light-emitting surface of the lens is closely assembled with the light-incident surface of the light guide plate without a gap.
  • the lens light-emitting surface of the lens is adhered and fixed to the light-incident optical glue of the light guide plate.
  • the light source comprises a PCB board and LED particles disposed on the PCB board and embedded in the lamp housing, and the lens and the LED particles are mounted on the PCB board to form a light bar.
  • the bottom surface of the light guide plate is provided with a micro convex and/or dimple structure, and the micro convex and/or micro concave structure is distributed around the hole structure, and the micro convex and/or micro concave structure
  • the distribution trend is that the closer the distribution is to the pore structure, the more sparse it is.
  • the improvement of the technical solution of the present invention further includes a backing plate disposed under the light guiding plate, and the light reflecting structure is a reflective sheet disposed on the backing plate or mounted on the bottom plane of the light guiding plate.
  • the light generated by the light source passes through the lens adjustment path and is incident into the light guide plate through the inner wall surface of the hole-shaped structure, and then is reflected by the light guide plate and the light reflection structure to be emitted to achieve a uniform surface light source. Effect.
  • a hole-shaped structure is formed on the light guide plate to accommodate the light source component, and the thickness of the direct type backlight module can be reduced while maintaining the picture quality.
  • Figure 1 is an exploded view of the assembly of the present invention
  • Figure 2 is a plan view of the overall structure of the present invention.
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 2;
  • Figure 4 is a schematic view showing the structure of the lens of the present invention.
  • Figure 5 is a schematic cross-sectional view of a lens of the present invention.
  • Figure 6 is a schematic view showing the structure of the optical path of the present invention.
  • Figure 7 is a schematic illustration of the distribution of the micro-convex and/or dimple structures of the present invention.
  • FIG. 1 there is shown a specific structure of a preferred embodiment of the present invention.
  • the structural features of the various components of the present invention will be described in detail below, and if described in the direction (up, down, left, right, front and back) The description is made with reference to the structure shown in Fig. 3, but the actual use direction of the present invention is not limited thereto.
  • the present invention provides an ultra-thin backlight module, including a light guide plate 1 and a light reflecting structure disposed at the bottom of the light guide plate 1.
  • the light guide plate 1 is provided with at least one hole-shaped structure. 11.
  • a light source assembly is disposed at the hole-shaped structure 11, an inner wall surface of the hole-shaped structure 11 is formed into a light-incident surface 12, and the light source assembly includes a light source and light embedded in the hole-shaped structure 11 and capable of illuminating the light source
  • the lens 2 is fed into the light guide plate 1 through the light incident surface 12.
  • the backing plate 3 is disposed under the light guide plate 1.
  • the light reflecting structure is a reflective sheet 4 disposed on the backing plate 3 or mounted on the bottom plane of the light guiding plate 1.
  • the light generated by the light source passes through the lens 2 to adjust the path, and then enters the light guide plate 1 through the inner wall surface of the hole-shaped structure 11, and then is reflected by the light guide plate 1 and the light reflection structure, thereby achieving the effect of the uniform surface light source.
  • a hole-shaped structure 11 is formed on the light guide plate 1 to accommodate the light source assembly, and the thickness of the direct-lit backlight module can be reduced while maintaining the picture quality.
  • the hole-shaped structure 11 is a blind hole or a through hole formed in the bottom of the light guide plate 1.
  • the specific structure may be a tapered hole (slot) or a cylindrical hole (slot). ), spherical holes (grooves), hemispherical holes (grooves), and the like.
  • a plurality of hole-shaped structures 11 are disposed on the light guide plate 1, and each of the hole-shaped structures 11 is evenly distributed on the light guide plate 1. In order to achieve the effect of a uniform surface light source.
  • the material of the light guide plate 1 includes one of the following materials: high refractive index PMMA, PC, ultra-white optical glass, etc., and the surrounding of the structure is adjusted according to the actual optical effect by ink screen printing, laser spotting, hot pressing or direct injection molding.
  • the top of the light guide plate 1 forms a light surface 13 , and the light source assembly is not higher than the light exit surface 13 of the light guide plate.
  • the bottom of the lens 2 is provided with a lamp housing 21 for accommodating the light source, and an inner wall surface of the lamp housing 21 forms a lens light incident surface 22, and the lens 2 and the light incident surface 12 are formed.
  • the opposite outer wall surface forms a smooth lens light exit surface 23, and the top of the lens 2 is provided with a concave tapered hole, and the hole wall of the tapered hole is formed to totally reflect the light entering through the lens entrance surface 22 to
  • the lens reflection surface 24 of the lens light exit surface 23 and the lens reflection surface 24 have a reflected light quadric structure.
  • the material of the lens includes one of the following materials: high refractive index PMMA, PC, ultra-white optical glass, and the like.
  • the lens light-emitting surface 23 of the lens 2 is closely assembled with the light-incident surface 12 of the light guide plate 1 without gaps, or the lens light-emitting surface 23 of the lens 2 and the light-incident surface of the light guide plate 1 are optically pasted. fixed.
  • the light source includes a PCB board 51 and LED particles 52 disposed on the PCB board 51 and embedded in the lamp housing 21.
  • the lens 2 and the LED particles 52 are mounted on the PCB board 51 to form a light bar assembly.
  • the light guide plate 1 is placed on the back plate 3 in cooperation with the light bar.
  • the design principle is as follows. Light emitted by the LED particles 52 is refracted into the interior of the lens 2 through the lens entrance face 22 of the lens 2. After being reflected by the lens reflecting surface 24, the lens light exiting surface 23 is emitted into the light guide plate 1. The light reflecting structure of the light guiding plate 1 is totally reflected and diffused, and then emitted through the light emitting surface 13 to achieve the effect of a uniform surface light source.
  • the lens 2 can be made of PMMA, PC, optical glass, etc., assuming a refractive index of 1.5. It can be solved according to the principle of total reflection. When the light is emitted from the optically dense medium to the light-diffusing medium, the incident angle is greater than 41.8°, the refracted light completely disappears, and only the reflected light remains, so the reflective surface structure of the lens 2 can be adjusted. The curvature of each point of the curve adjusts the angle of incidence of each ray. When the refractive index of the lens 2 is higher, the height of the curved surface can be smaller, and the backlight module is thinner.
  • the light guide plate 1 can be made of PMMA, PC, optical glass, etc., and the light is incident into the light guide plate 1 through the light incident surface structure, and the incident light is totally emitted on the light reflection structure.
  • the bottom plane 14 of the light guide plate 1 is provided with a micro-convex and/or dimple structure, and the micro-convex and/or dimple structures are distributed around the hole-shaped structure, and the micro-convex and/or dimple structures are arranged.
  • the distribution trend is that the closer the distribution is to the pore structure, the more dense the distribution is. In order to achieve the effect of a uniform surface light source.
  • the total thickness of the backlight portion can be controlled within 10 mm, which is in line with the ultra-thin development trend of the backlight module.

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)

Abstract

一种超薄背光模组，用于背光模组技术领域，包括导光板（1）和设在导光板（1）底部的光反射结构（4），导光板（1）上开设有至少一个孔形结构（11），在孔形结构（11）处设有光源组件，孔形结构（11）的内壁面形成入光面（12），光源组件包括光源和镶嵌在孔形结构（11）内并可将光源的光线经入光面（12）送入导光板（1）内的透镜（2）。光源产生的光线经过透镜（2）调整路径后经孔形结构（11）的内壁面射入导光板（1）内，再通过导光板（1）及光反射结构（4）的反射后射出，以达到均匀面光源的效果。在导光板（1）上开设孔形结构（11）容纳光源组件，可在保持画面质量的同时降低直下式背光模组厚度。

Description

一种超薄背光模组
技术领域
本发明用于背光模组技术领域，特别是涉及一种超薄背光模组。
背景技术
LED背光液晶电视由于寿命高、色域宽、能耗低等特点已成为TV的主流。目前LED背光主要有2种方式，一种是侧入式，一种是直下式，二者各有优劣。
侧入式背光是将LED灯排布在导光板的侧边，通过导光板的设计达到面光的效果，其优点是轻薄，但是其散热问题、局部控光问题等一直是行业的难题。
直下式背光是将LED灯排布在扩散板的下端，通过扩散板的面扩散达到面光的效果，其优点是可将LED背光划分为若干单元格并控制各个单元格的开关，可实现优秀的色彩和明暗对比效果。不足就是外观无法做到超薄。
如何在保持画面质量的同时降低直下式背光模组的厚度已成为直下式背光迫切需要解决的问题，目前行业的解决方法主要有2种：1种是提高二次光学透镜的发光角度，1种是增加LED灯的数量。
但是，由于光学透镜的占据一定的厚度，同时与LED之间的匹配瓶颈导致无法将背光的厚度降低到10mm以下。
发明内容
为解决上述问题，本发明提供一种可在保持画面质量的同时降低直下式背光模组厚度的超薄背光模组。
本发明解决其技术问题所采用的技术方案是：一种超薄背光模组，包括导光板和设在所述导光板底部的光反射结构，所述导光板上开设有至少一个孔形结构，在所述孔形结构处设有光源组件，所述孔形结构的内壁面形成入光面，所述光源组件包括光源和镶嵌在孔形结构内并可将光源的光线经入光面送入导光板内的透镜。
进一步作为本发明技术方案的改进，所述孔形结构为开设在导光板底部的盲孔或通孔。
进一步作为本发明技术方案的改进，所述导光板上设置多个孔形结构，各孔形结构在导光板上均匀分布。
进一步作为本发明技术方案的改进，所述导光板的顶部形成出光面，所述光源组件不高出导光板的出光面。
进一步作为本发明技术方案的改进，所述透镜的底部设有容纳所述光源的灯仓，所述灯仓的内壁面形成透镜入光面，所述透镜与所述入光面相对的外壁面形成透镜出光面，所述透镜的顶部设有内凹的锥形孔，所述锥形孔的孔壁形成可将经透镜入光面进入的光线全反射至透镜出光面的透镜反射面。
进一步作为本发明技术方案的改进，所述透镜的透镜出光面与导光板的入光面无间隙紧密装配。
进一步作为本发明技术方案的改进，所述透镜的透镜出光面与导光板的入光面光学胶粘贴固定。
进一步作为本发明技术方案的改进，所述光源包括PCB板以及设在所述PCB板上且嵌入所述灯仓内的LED颗粒，所述透镜与LED颗粒均贴装于PCB板上组成灯条。
进一步作为本发明技术方案的改进，所述导光板的底部平面上设有微凸和/或微凹结构，微凸和/或微凹结构环绕孔形结构分布，微凸和/或微凹结构的分布趋势为越靠近孔形结构分布越疏。
进一步作为本发明技术方案的改进，还包括设在所述导光板下方的背板，所述光反射结构为设在贴装于背板上或者贴装于导光板底部平面上的反射片。
本发明的有益效果：本发明中，光源产生的光线经过透镜调整路径后经孔形结构的内壁面射入导光板内，再通过导光板及光反射结构的反射后射出，以达到均匀面光源的效果。本发明中采用在导光板上开设孔形结构，容纳光源组件，可在保持画面质量的同时降低直下式背光模组厚度。
附图说明
下面结合附图对本发明作进一步说明：
图1是本发明装配爆炸视图；
图2是本发明整体结构俯视图；
图3是本图2中A-A处截面图；
图4是本发明透镜结构示意图；
图5是本发明透镜横截面示意图；
图6是本发明光路结构示意图；
图7是本发明微凸和/或微凹结构分布示意图。
具体实施方式
参照图1至图7，其显示出了本发明之较佳实施例的具体结构。以下将详细说明本发明各部件的结构特点，而如果有描述到方向( 上、下、左、右、前及后) 时，是以图3所示的结构为参考描述，但本发明的实际使用方向并不局限于此。
参见图1、图3，本发明提供了一种超薄背光模组，包括导光板1和设在所述导光板1底部的光反射结构，所述导光板1上开设有至少一个孔形结构11，在所述孔形结构11处设有光源组件，所述孔形结构11的内壁面形成入光面12，所述光源组件包括光源和镶嵌在孔形结构11内并可将光源的光线经入光面12送入导光板1内的透镜2。还包括设在所述导光板1下方的背板3，所述光反射结构为设在贴装于背板3上或者贴装于导光板1底部平面上的反射片4。本发明中，光源产生的光线经过透镜2调整路径后经孔形结构11的内壁面射入导光板1内，再通过导光板1及光反射结构的反射后射出，以达到均匀面光源的效果。本发明中采用在导光板1上开设孔形结构11，容纳光源组件，可在保持画面质量的同时降低直下式背光模组厚度。
作为本发明优选的实施方式，参见图2，其中，所述孔形结构11为开设在导光板1底部的盲孔或通孔，具体结构可能是锥形孔（槽）、柱形孔（槽）、球形孔（槽）、半球形孔（槽）等。所述导光板1上设置多个孔形结构11，而且，各孔形结构11在导光板1上均匀分布, 以达到均匀面光源的效果。
导光板1材质包含以下材质的一种：高折射率的PMMA、PC、超白光学玻璃等，配合结构的四周根据实际光学效果进行油墨丝印、激光打点、热压或直接注塑成型进行调整。所述导光板1的顶部形成出光面13，所述光源组件不高出导光板的出光面13。
参见图4、图5，所述透镜2的底部设有容纳所述光源的灯仓21，所述灯仓21的内壁面形成透镜入光面22，所述透镜2与所述入光面12相对的外壁面形成光滑的透镜出光面23，所述透镜2的顶部设有内凹的锥形孔，所述锥形孔的孔壁形成可将经透镜入光面22进入的光线全反射至透镜出光面23的透镜反射面24，透镜反射面24采用反射光二次曲面结构。透镜其材质包含以下材质的一种：高折射率的PMMA、PC、超白光学玻璃等。
本实施例中，所述透镜2的透镜出光面23与导光板1的入光面12无间隙紧密装配，或者所述透镜2的透镜出光面23与导光板1的入光面光学胶粘贴固定。所述光源包括PCB板51以及设在所述PCB板51上且嵌入所述灯仓21内的LED颗粒52，所述透镜2与LED颗粒52均贴装于PCB板51上组成灯条装配时，导光板1与灯条配合放置于背板3上。
参见图6，其设计原理如下，由LED颗粒52发出的光线通过透镜2的透镜入光面22折射进透镜2内部。在透镜反射面24反射后通过透镜出光面23射出进入导光板1内，在导光板1的光反射结构进行全反射及漫反射后，通过出光面13射出，从而达到均匀面光源的效果。
透镜2可采用PMMA、PC、光学玻璃等材料，假设其折射率为1.5， 可根据全反射原理求解得出，当光从光密介质射向光疏介质时，在入射角大于41.8°，折射光完全消失，只剩下反射光线，故可通过调整透镜2的反射面结构的曲线的各点的曲率来调整各个光线的入射角度。当透镜2的折射率越高，其曲面的高度可以越小，背光模组越薄。
导光板1可采用PMMA、PC、光学玻璃等材料，光线经由入光面结构射入导光板1内，入射光线在光反射结构上发生全发射。
如图7所示，所述导光板1的底部平面14上设有微凸和/或微凹结构，微凸和/或微凹结构环绕孔形结构分布，微凸和/或微凹结构的分布趋势为越靠近孔形结构分布越疏，越远离分布越密。以达到均匀面光源的效果。
在本发明的实施例中，背光部分的总厚度可控制在10mm以内，符合背光模组的超薄化发展趋势。
当然，本发明创造并不局限于上述实施方式，熟悉本领域的技术人员在不违背本发明精神的前提下还可作出等同变形或替换，这些等同的变型或替换均包含在本申请权利要求所限定的范围内。

Claims (10)

  1. 一种超薄背光模组，其特征在于：包括导光板和设在所述导光板底部的光反射结构，所述导光板上开设有至少一个孔形结构，在所述孔形结构处设有光源组件，所述孔形结构的内壁面形成入光面，所述光源组件包括光源和镶嵌在孔形结构内并可将光源的光线经入光面送入导光板内的透镜。
  2. 根据权利要求1所述的超薄背光模组，其特征在于：所述孔形结构为开设在导光板底部的盲孔或通孔。
  3. 根据权利要求2所述的超薄背光模组，其特征在于：所述导光板上设置多个孔形结构，各孔形结构在导光板上均匀分布。
  4. 根据权利要求1所述的超薄背光模组，其特征在于：所述导光板的顶部形成出光面，所述光源组件不高出导光板的出光面。
  5. 根据权利要求4所述的超薄背光模组，其特征在于：所述透镜的底部设有容纳所述光源的灯仓，所述灯仓的内壁面形成透镜入光面，所述透镜与所述入光面相对的外壁面形成透镜出光面，所述透镜的顶部设有内凹的锥形孔，所述锥形孔的孔壁形成可将经透镜入光面进入的光线全反射至透镜出光面的透镜反射面。
  6. 根据权利要求5所述的超薄背光模组，其特征在于：所述透镜的透镜出光面与导光板的入光面无间隙紧密装配。
  7. 根据权利要求5所述的超薄背光模组，其特征在于：所述透镜的透镜出光面与导光板的入光面光学胶粘贴固定。
  8. 根据权利要求5所述的超薄背光模组，其特征在于：所述光源包括PCB板以及设在所述PCB板上且嵌入所述灯仓内的LED颗粒，所述透镜与LED颗粒均贴装于PCB板上组成灯条。
  9. 根据权利要求1所述的超薄背光模组，其特征在于：所述导光板的底部平面上设有微凸和/或微凹结构，微凸和/或微凹结构环绕孔形结构分布，微凸和/或微凹结构的分布趋势为越靠近孔形结构分布越疏。
  10. 根据权利要求1所述的超薄背光模组，其特征在于：还包括设在所述导光板下方的背板，所述光反射结构为设在贴装于背板上或者贴装于导光板底部平面上的反射片。
PCT/CN2017/079207 2017-02-16 2017-04-01 一种超薄背光模组 WO2018149025A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710083819.2 2017-02-16
CN201710083819.2A CN106886106A (zh) 2017-02-16 2017-02-16 一种超薄背光模组

Publications (1)

Publication Number Publication Date
WO2018149025A1 true WO2018149025A1 (zh) 2018-08-23

Family

ID=59179303

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/079207 WO2018149025A1 (zh) 2017-02-16 2017-04-01 一种超薄背光模组

Country Status (2)

Country Link
CN (1) CN106886106A (zh)
WO (1) WO2018149025A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110824778A (zh) * 2019-11-29 2020-02-21 武汉华星光电技术有限公司 一种背光模组及显示装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107633781A (zh) * 2016-07-18 2018-01-26 比亚迪股份有限公司 换挡发光面板和具有其的汽车
CN107861188B (zh) * 2017-09-29 2020-02-07 广东深越光电技术有限公司 一种导光板及利用其提升暗区的亮度的背光模组
CN111367122A (zh) * 2020-04-03 2020-07-03 深圳市隆利科技股份有限公司 导光led灯板
CN111413826A (zh) * 2020-04-03 2020-07-14 深圳市隆利科技股份有限公司 面光源背光装置
CN114217479B (zh) * 2022-02-09 2024-05-07 深圳创维－Rgb电子有限公司 光学组件、背光模组以及显示装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100033989A1 (en) * 2008-08-08 2010-02-11 Tun-Chien Teng Light guide plate and edge-lighting type backlight module
CN201945776U (zh) * 2010-12-28 2011-08-24 歌尔声学股份有限公司 Led背光源显示设备
CN102287690A (zh) * 2011-04-29 2011-12-21 友达光电股份有限公司 背光模块
CN202274376U (zh) * 2011-10-31 2012-06-13 深圳Tcl新技术有限公司 液晶显示背光模组及液晶显示器
CN202419335U (zh) * 2011-10-28 2012-09-05 Tcl光电科技(惠州)有限公司 液晶显示器及直下式led背光模组
CN104712959A (zh) * 2013-12-16 2015-06-17 富泰华精密电子（郑州）有限公司 背光模组及其光源模组

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101256307A (zh) * 2008-03-14 2008-09-03 上海广电光电子有限公司 直下式背光模组
CN102566139B (zh) * 2010-12-28 2014-12-24 歌尔声学股份有限公司 Led背光源显示设备
CN103017038A (zh) * 2012-12-13 2013-04-03 京东方科技集团股份有限公司 一种直下式背光源及显示装置
CN104748021A (zh) * 2013-12-31 2015-07-01 欧普照明股份有限公司 一种led照明装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100033989A1 (en) * 2008-08-08 2010-02-11 Tun-Chien Teng Light guide plate and edge-lighting type backlight module
CN201945776U (zh) * 2010-12-28 2011-08-24 歌尔声学股份有限公司 Led背光源显示设备
CN102287690A (zh) * 2011-04-29 2011-12-21 友达光电股份有限公司 背光模块
CN202419335U (zh) * 2011-10-28 2012-09-05 Tcl光电科技(惠州)有限公司 液晶显示器及直下式led背光模组
CN202274376U (zh) * 2011-10-31 2012-06-13 深圳Tcl新技术有限公司 液晶显示背光模组及液晶显示器
CN104712959A (zh) * 2013-12-16 2015-06-17 富泰华精密电子（郑州）有限公司 背光模组及其光源模组

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110824778A (zh) * 2019-11-29 2020-02-21 武汉华星光电技术有限公司 一种背光模组及显示装置

Also Published As

Publication number Publication date
CN106886106A (zh) 2017-06-23

Similar Documents

Publication Publication Date Title
WO2018149025A1 (zh) 一种超薄背光模组
WO2012113164A1 (zh) 侧入式导光板组件及背光模块
US20100165619A1 (en) Light diffusing plate and lighting device using it
WO2019019613A1 (zh) 背光模组及显示装置
US20080266902A1 (en) Backlight module
WO2012051767A1 (zh) 背光模块
WO2015024364A1 (zh) 背光模组及包括该背光模组的显示装置
WO2013177967A1 (zh) 面光源装置及侧入式背光模组
WO2014067195A1 (zh) 背光模块及显示装置
KR100813255B1 (ko) 고출력 도광판 및 이를 채용한 백라이트 유닛
WO2019076101A1 (zh) 侧面入射式背光模组和显示装置
KR20070091519A (ko) 직하광식 및 감입광식 백라이트 모듈용 광산란 필름
US7695152B2 (en) Prism sheet and liquid crystal display device using the same
WO2013174032A1 (zh) 背光模组及液晶显示装置
WO2011091674A1 (zh) 一种导光板以及包含该导光板的照明装置与背光模组
WO2015156548A1 (ko) 백라이트 유닛, 및 이를 포함하는 디스플레이 장치
WO2014067192A1 (zh) 背光模块及显示装置
WO2019127754A1 (zh) 复合扩散板及超薄直下式背光模组
TW201939080A (zh) 顯示裝置
WO2021002655A1 (en) Display apparatus and diffuser plate thereof
WO2017173703A1 (zh) 一种背光模组以及液晶显示器
WO2020171506A1 (en) Optical structure for light-emitting diode device and light-emitting diode device for lighting application including the same
WO2015156632A1 (ko) 광학 부재, 및 이를 포함하는 백라이트 유닛
WO2023151599A1 (zh) 光学组件、背光模组以及显示装置
WO2014067194A1 (zh) 背光模块及显示装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17896498

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17896498

Country of ref document: EP

Kind code of ref document: A1