WO2017107273A1 - 导光板、背光模块及液晶显示器 - Google Patents

导光板、背光模块及液晶显示器 Download PDF

Info

Publication number
WO2017107273A1
WO2017107273A1 PCT/CN2016/071369 CN2016071369W WO2017107273A1 WO 2017107273 A1 WO2017107273 A1 WO 2017107273A1 CN 2016071369 W CN2016071369 W CN 2016071369W WO 2017107273 A1 WO2017107273 A1 WO 2017107273A1
Authority
WO
WIPO (PCT)
Prior art keywords
guide plate
light guide
backlight module
light
boss
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.)
Ceased
Application number
PCT/CN2016/071369
Other languages
English (en)
French (fr)
Inventor
程艳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
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 Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US14/910,276 priority Critical patent/US20180031754A1/en
Publication of WO2017107273A1 publication Critical patent/WO2017107273A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • G02B6/0031—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
    • G02B6/0035—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
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
    • 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
    • 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
    • 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
    • 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
    • G02F1/133603—Direct backlight with LEDs
    • 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

Definitions

  • the invention belongs to the technical field of liquid crystal display, and in particular to a light guide plate, a backlight module and a liquid crystal display.
  • the development trend of the market is to pursue the thin and light portable products.
  • mobile phones, tablet computers, notebook computers, etc. which require liquid crystal displays, are becoming thinner and thinner, so the thickness of the liquid crystal display needs to be thinner and thinner.
  • the backlight module in addition to the liquid crystal panel, the backlight module constitutes its main thickness. The most effective way to reduce the thickness of the product is to make the thickness of the backlight module thin.
  • the existing backlight module is divided into a side-in type backlight module and a direct-type backlight module according to different incident positions of the light source.
  • the side-lit backlight module is configured to set a light source, such as an LED light bar, on the edge of the back plate, and the light emitted by the LED light bar enters the light guide plate from the light incident surface of the light guide plate (LGP). After being reflected and diffused, it is emitted from the light-emitting surface of the light guide plate, and then supplied to the liquid crystal panel through the optical film to form a surface light source.
  • a light source such as an LED light bar
  • the bottom surface of the light guide plate mostly adopts concave or convex geometric mesh points, wherein the uniformity of the surface light source is satisfied by adjusting the size and density of the dot.
  • the surface is emitted and reflected back into the light guide plate through the reflective sheet to improve the light efficiency; however, the reflective sheet cannot achieve 100% reflection efficiency, and it will absorb some of the light, which reduces the light utilization efficiency of the light guide plate, and also It is not conducive to the thinning of the backlight module.
  • an object of the present invention is to provide a light guide plate including a flat body and a plurality of bosses, the flat body including oppositely disposed top and bottom surfaces, and the plurality of bosses are disposed On the bottom surface, wherein the convex surface of the boss is composed of a plurality of pyramids.
  • the light guide plate further includes: a wedge body extending from one side of the flat body, wherein a thin end surface of the wedge body smoothly engages with one end of the flat body.
  • the boss is coated on the bottom surface.
  • the boss is made of a highly reflective material.
  • the number of the pyramids constituting the convex surface is gradually increased or gradually decreased in a specific direction.
  • a backlight module including: a light guide plate including a flat body and a wedge body extending from one side of the flat body, wherein the thick end surface of the wedge body is light entering a thinner end surface of the wedge body smoothly engaging with one end of the flat body, the flat body comprising oppositely disposed light emitting surfaces and a bottom surface; and a plurality of bosses disposed on the bottom surface, wherein The convex surface of the boss is composed of a plurality of pyramids; a light source is disposed adjacent to the light incident surface.
  • the number of the pyramids constituting the convex surface gradually increases in a direction away from the light incident surface.
  • the boss is coated on the bottom surface.
  • the boss is made of a highly reflective material.
  • Still another object of the present invention is to provide a liquid crystal display comprising the above-described backlight module.
  • the total reflection thereof is destroyed, so that a part of the light is emitted from the top of the light guide plate.
  • the surface is emitted, and another part of the light is emitted from the bottom surface of the light guide plate and reflected back into the light guide plate via the boss.
  • the bumps are used to replace the dot and the reflection sheet in the prior art, thereby reducing the thickness of the backlight module, facilitating the development of the thin and light of the backlight module, and improving the light utilization efficiency of the light guide plate, and at the same time reducing the manufacturing process and thereby reducing the process. Cost of production.
  • FIG. 1 is a schematic structural view of a liquid crystal display according to an embodiment of the present invention.
  • FIG. 2 is a side view of a backlight module in accordance with an embodiment of the present invention.
  • FIG. 3 is a bottom view of the backlight module of FIG. 2.
  • FIG. 1 is a schematic structural view of a liquid crystal display according to an embodiment of the present invention.
  • a liquid crystal display according to an embodiment of the present invention includes a liquid crystal panel 100 and a backlight module 200 disposed opposite to each other, wherein the backlight module 200 provides a uniform surface light source to the liquid crystal panel 100 to cause the liquid crystal panel 100 to display an image.
  • the gist of the present invention is directed to the backlight module 200, the specific structure of the liquid crystal panel 100 will not be described in detail herein. Those skilled in the art can refer to the specific structure of the liquid crystal panel disclosed in the prior art.
  • the backlight module 200 according to an embodiment of the present invention will be described in detail below.
  • 2 is a side view of a backlight module in accordance with an embodiment of the present invention.
  • 3 is a bottom view of the backlight module of FIG. 2.
  • a backlight module 200 includes a light source 210 , a light guide plate 220 , and an optical film 230 . It should be understood that the backlight module 200 may further include other components such as a backboard, a plastic frame, and the like. Since the gist of the present invention is directed to the light guide plate 220 of the backlight module 200, these components are selectively omitted. Those skilled in the art can refer to the related prior art.
  • the light guide plate 220 includes: a flat body 221, and a wedge body 222 extending along one end of the flat body 221 And a plurality of bosses 223.
  • the thicker end surface of the wedge body 222 is the light incident surface 222a, and the thin end surface of the wedge body 222 is smoothly joined to one end of the flat body 221 .
  • the flat body 221 includes a top surface 2211 and a bottom surface 2212 that are oppositely disposed.
  • a plurality of bosses 223 are arranged on the bottom surface 2212 in a specific rule.
  • a plurality of bosses 223 are arranged in an array on the bottom surface 2212.
  • the convex surface of the boss 223 is composed of a plurality of pyramids 2231; however, the present invention is not limited thereto.
  • the convex surface of the boss 223 may also be a plurality of cylinders, a plurality of square bodies or a plurality of shapes of any suitable type.
  • the convex composition is composed of a plurality of cylinders, a plurality of square bodies or a plurality of shapes of any suitable type.
  • the number of the pyramids 2231 constituting the convex surface of the boss 223 is gradually increased or gradually decreased in a specific direction.
  • the number of the pyramids 2231 constituting the convex surface of the boss 223 is gradually increased along the direction away from the light incident surface 222a; and the pyramid forming the convex surface of the boss 223 in the column direction
  • the number of 2231 is the same. It should be noted that, as another embodiment of the present invention, the number of the pyramids 2231 constituting the convex surface of the boss 223 may be different in the column direction.
  • the boss 223 is made of a highly reflective material such as barium sulfate high reflective material, but the invention is not limited thereto.
  • a plurality of bosses 223 may be coated on the bottom surface 2212 by a coating process, but the present invention is not limited thereto.
  • a plurality of bosses 223 may be disposed by printing printing or the like. On the bottom surface 2212.
  • the light source 210 may be, for example, a light bar composed of a plurality of light emitting diodes (LEDs), but the invention is not limited thereto.
  • the light source 210 may also be a cold cathode fluorescent tube (CCFL).
  • CCFL cold cathode fluorescent tube
  • a plurality of optical films 230 are disposed on the top surface 2211 for improving the optical quality of the light emitted by the top surface 2211.
  • these optical films 230 may include brightness enhancing films, diffusing films, etc., which are capable of improving the optical quality of the light emitted by the top surface 2211.
  • the bumps 223 are used to replace the dots and the reflection sheets in the prior art, which reduces the thickness of the backlight module 200, facilitates the thinning and development of the backlight module 200, and improves the light utilization efficiency of the light guide plate 220, and can reduce the production. Process to reduce production costs.

Landscapes

  • 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

一种导光板（220）、背光模块（200）和液晶显示器，所述导光板（220）包括平板体（221）及若干凸台（223），所述平板体（221）包括相对设置的顶表面（2211）和底表面（2212），所述若干凸台（223）设置于所述底表面（2212）上，所述凸台（223）的凸面由多个棱锥（2231）构成。由入光面（222a）入射到导光板（220）内的光线照射到凸台（223）之后，其全反射会被破坏，其中一部分光线会从导光板（220）的顶表面（2211）出射，另一部分光线会从导光板（220）的底表面（2212）射出并经由凸台（223）反射回导光板（220）中。

Description

导光板、背光模块及液晶显示器 技术领域
本发明属于液晶显示技术领域，具体地讲，涉及一种导光板、背光模块及液晶显示器。
背景技术
市场的发展趋势是追求便携式产品的轻薄化，如现在的手机、平板电脑、笔记本电脑等需要液晶显示器的设备越做越薄，因此液晶显示器的厚度也需要越做越薄。在整个液晶显示器中，除了液晶面板外，背光模块就构成了它的主要厚度。要减小产品的厚度最有效的方法就是将背光模块的厚度做薄。
现有的背光模块依照光源入射位置的不同分成侧入式背光模块和直下式背光模块两种。其中，侧入式背光模块是将光源，诸如LED灯条(Light bar)设于背板边缘，LED灯条发出的光线从导光板(LGP，Light Guide Plate)一侧的入光面进入导光板，经反射和扩散后从导光板出光面射出，再经由光学膜片以形成面光源提供给液晶面板。
导光板的底表面大都采用凹或凸的几何网点，其中，依靠调节网点的大小及密度来满足面光源的均一性。从LED灯条出射并经由入光面入射到导光板内的光线照射到网点之后，其全反射会被破坏，这样，一部分光线会从导光板顶表面出射，另一部分光线会从导光板的底表面射出并经由反射片反射回导光板中来提高光效；但是反射片并不能达到百分之百的反射效率，其还是会吸收会透过部分光，这就降低了导光板的光利用率，同时也不利于背光模块的薄型化。
发明内容
为了解决上述现有技术存在的问题，本发明的目的在于提供一种导光板，其包括平板体和若干凸台，所述平板体包括相对设置的顶表面和底表面，所述若干凸台设置于所述底表面上，其中，所述凸台的凸面由多个棱锥构成。
进一步地，所述导光板还包括：由所述平板体一侧延伸形成的楔形体，其中，所述楔形体较薄的端面与所述平板体的一端平滑衔接。
进一步地，所述凸台涂布于所述底表面上。
进一步地，所述凸台由高反射材料制成。
进一步地，沿一特定方向，构成所述凸面的所述棱锥的数量逐渐增多或者逐渐减少。
本发明的另一目的还在于提供一种背光模块，其包括：导光板，包括平板体及由所述平板体一侧延伸形成的楔形体，其中，所述楔形体较厚的端面为入光面，所述楔形体较薄的端面与所述平板体的一端平滑衔接，所述平板体包括相对设置的出光面和底表面；若干凸台，设置于所述底表面上，其中，所述凸台的凸面由多个棱锥构成；光源，邻近于所述入光面设置。
进一步地，沿远离所述入光面的方向，构成所述凸面的所述棱锥的数量逐渐增多。
进一步地，所述凸台涂布于所述底表面上。
进一步地，所述凸台由高反射材料制成。
本发明又一目的又在于提供一种液晶显示器，其包括上述的背光模块。
本发明的有益效果：在本发明中，从光源出射并经由入光面入射到导光板内的光线照射到凸台之后，其全反射会被破坏，这样，其中一部分光线会从导光板的顶表面出射，另一部分光线会从导光板的底表面射出并经由凸台反射回导光板中。这样，以凸台代替了现有技术中的网点和反射片，降低了背光模块的厚度，利于背光模块的轻薄化发展，并能够提高导光板的光利用率，同时能够减少制作流程，从而降低生产成本。
附图说明
通过结合附图进行的以下描述，本发明的实施例的上述和其它方面、特点和优点将变得更加清楚，附图中：
图1是根据本发明的实施例的液晶显示器的结构示意图；
图2是根据本发明的实施例的背光模块的侧视图；
图3是图2的背光模块的仰视图。
具体实施方式
以下，将参照附图来详细描述本发明的实施例。然而，可以以许多不同的形式来实施本发明，并且本发明不应该被解释为限制于这里阐述的具体实施例。相反，提供这些实施例是为了解释本发明的原理及其实际应用，从而使本领域的其他技术人员能够理解本发明的各种实施例和适合于特定预期应用的各种修改。
在附图中，为了清楚起见，夸大了层和区域的厚度。相同的标号在整个说明书和附图中可用来表示相同的元件。
图1是根据本发明的实施例的液晶显示器的结构示意图。
参照图1，根据本发明的实施例的液晶显示器包括相对设置的液晶面板100和背光模块200，其中，背光模块200提供均匀的面光源给液晶面板100，以使该液晶面板100显示影像。
由于本发明的发明要点是针对背光模块200，所以为了避免赘述，液晶面板100的具体结构在此不再详细介绍，本领域的技术人员可参照现有技术中公开的液晶面板的具体结构。
以下将对根据本发明的实施例的背光模块200进行详细的描述。图2是根据本发明的实施例的背光模块的侧视图。图3是图2的背光模块的仰视图。
参照图2和图3，根据本发明的实施例的背光模块200包括：光源210、导光板220、光学膜片230。应当理解的是，背光模块200还可以包括背板、胶框等其他必要的元器件，由于本发明的发明要点是针对背光模块200的导光板220，因此这些元器件被选择性的省略，本领域的技术人员可参照相关的现有技术。
导光板220包括：平板体221、沿该平板体221一端延伸的楔形体222以 及若干凸台223。这里，该楔形体222较厚的端面为入光面222a，该楔形体222较薄的端面与平板体221的一端平滑衔接。
平板体221包括相对设置的顶表面2211和底表面2212。若干凸台223以特定规则布置于底表面2212上。例如，在本实施例中，优选地，若干凸台223以阵列方式布置于底表面2212上。这里，凸台223的凸面由多个棱锥2231构成；但本发明并不限制于此，例如，凸台223的凸面也可以由多个圆柱体、多个方体或者多个任何合适类型形状的凸起构成。
沿一特定方向，构成凸台223的凸面的棱锥2231的数量逐渐增多或者逐渐减少。在本实施例中，优选地，在行方向上，沿着远离入光面222a的方向，构成凸台223的凸面的棱锥2231的数量逐渐增多；在列方向上，构成凸台223的凸面的棱锥2231的数量相同。应当说明的是，作为本发明的另一实施方式，在列方向上，构成凸台223的凸面的棱锥2231的数量也可以不相同。
在本实施例中，优选地，凸台223由高反射材料制成，例如硫酸钡高反射材料，但本发明并不限制于此。此外，在本实施例中，可利用涂布工艺将若干凸台223涂布在底表面2212上，但本发明并不限制于此，例如也可以通过打印印刷等工艺将若干凸台223设置在底表面2212上。
光源210可例如是由多个发光二极管(LED)构成的灯条(Light Bar)，但本发明并不限制于此，例如光源210也可以是冷阴极荧光灯管(CCFL)。光源210邻近于该楔形体222的入光面222a设置。
多张光学膜片230设置于顶表面2211上，用于改善由顶表面2211出射的光线的光学品质。在本实施例中，这些光学膜片230可包括增亮膜、扩散膜等，它们能够改善由顶表面2211出射的光线的光学品质。
综上，从光源210出射并经由入光面222a入射到导光板220内的光线照射到凸台223之后，其全反射会被破坏，这样，其中一部分光线会从导光板220的顶表面2211出射，另一部分光线会从导光板220的底表面2212射出并经由凸台223反射回导光板220中。这样，以凸台223代替了现有技术中的网点和反射片，降低了背光模块200的厚度，利于背光模块200的轻薄化发展，并能够提高导光板220的光利用率，同时能够减少制作流程，从而降低生产成本。
虽然已经参照特定实施例示出并描述了本发明，但是本领域的技术人员将理解：在不脱离由权利要求及其等同物限定的本发明的精神和范围的情况下，可在此进行形式和细节上的各种变化。

Claims (13)

  1. 一种导光板，包括平板体，所述平板体包括相对设置的顶表面和底表面，其中，所述导光板还包括若干凸台，所述若干凸台设置于所述底表面上，其中，所述凸台的凸面由多个棱锥构成。
  2. 根据权利要求1所述的导光板，其中，所述导光板还包括：由所述平板体一侧延伸形成的楔形体，其中，所述楔形体较薄的端面与所述平板体的一端平滑衔接。
  3. 根据权利要求1所述的导光板，其中，所述凸台涂布于所述底表面上。
  4. 根据权利要求1所述的导光板，其中，所述凸台由高反射材料制成。
  5. 根据权利要求1所述的导光板，其中，沿一特定方向，构成所述凸面的所述棱锥的数量逐渐增多或者逐渐减少。
  6. 根据权利要求2所述的导光板，其中，沿一特定方向，构成所述凸面的所述棱锥的数量逐渐增多或者逐渐减少。
  7. 一种背光模块，其中，包括：
    导光板，包括平板体及由所述平板体一侧延伸形成的楔形体，其中，所述楔形体较厚的端面为入光面，所述楔形体较薄的端面与所述平板体的一端平滑衔接，所述平板体包括相对设置的出光面和底表面；
    若干凸台，设置于所述底表面上，其中，所述凸台的凸面由多个棱锥构成；
    光源，邻近于所述入光面设置。
  8. 根据权利要求7所述的背光模块，其中，沿远离所述入光面的方向，构成所述凸面的所述棱锥的数量逐渐增多。
  9. 根据权利要求7所述的背光模块，其中，所述凸台涂布于所述底表面上。
  10. 根据权利要求8所述的背光模块，其中，所述凸台涂布于所述底表面上。
  11. 根据权利要求7所述的背光模块，其中，所述凸台由高反射材料制成。
  12. 根据权利要求8所述的背光模块，其中，所述凸台由高反射材料制成。
  13. 一种液晶显示器，包括相对设置的液晶面板和背光模块，其中，所述背光模块包括：
    导光板，包括平板体及由所述平板体一侧延伸形成的楔形体，其中，所述楔形体较厚的端面为入光面，所述楔形体较薄的端面与所述平板体的一端平滑衔接，所述平板体包括相对设置的出光面和底表面；
    若干凸台，设置于所述底表面上，其中，所述凸台的凸面由多个棱锥构成；
    光源，邻近于所述入光面设置。
PCT/CN2016/071369 2015-12-22 2016-01-19 导光板、背光模块及液晶显示器 Ceased WO2017107273A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/910,276 US20180031754A1 (en) 2015-12-22 2016-01-19 Light Guide Plate, Backlight Module And Liquid Crystal Display

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510976234.4A CN105511009A (zh) 2015-12-22 2015-12-22 导光板、背光模块及液晶显示器
CN201510976234.4 2015-12-22

Publications (1)

Publication Number Publication Date
WO2017107273A1 true WO2017107273A1 (zh) 2017-06-29

Family

ID=55719115

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/071369 Ceased WO2017107273A1 (zh) 2015-12-22 2016-01-19 导光板、背光模块及液晶显示器

Country Status (3)

Country Link
US (1) US20180031754A1 (zh)
CN (1) CN105511009A (zh)
WO (1) WO2017107273A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109212654A (zh) * 2017-06-30 2019-01-15 苏州璨宇光学有限公司 导光板

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101261338A (zh) * 2007-03-06 2008-09-10 鸿富锦精密工业（深圳）有限公司 导光板及其制备方法
US20120257412A1 (en) * 2011-04-11 2012-10-11 Yeom Dong-Yeol Optical plate, display apparatus having the same, and method of manufacturing the optical plate
WO2013100234A1 (en) * 2011-12-29 2013-07-04 Lg Innotek Co., Ltd. Lamp device and lcd using the same
CN103727454A (zh) * 2012-10-16 2014-04-16 群康科技(深圳)有限公司 导光板、发光模块及显示装置
CN103727455A (zh) * 2012-10-16 2014-04-16 群康科技(深圳)有限公司 发光模块及显示装置
CN103901529A (zh) * 2012-12-26 2014-07-02 欧姆龙株式会社 导光板及面光源装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010074133A (ko) * 2001-03-30 2001-08-04 고경진 백라이트용 도광판
CN1932604A (zh) * 2005-09-16 2007-03-21 群康科技(深圳)有限公司 导光板及使用该导光板的背光模组
JP4500328B2 (ja) * 2007-06-11 2010-07-14 株式会社 日立ディスプレイズ 液晶表示装置
JP2009128647A (ja) * 2007-11-26 2009-06-11 Hitachi Displays Ltd 液晶表示装置
CN101452092A (zh) * 2007-12-07 2009-06-10 比亚迪股份有限公司 一种导光板及其制作方法
CN201210211Y (zh) * 2008-06-16 2009-03-18 亚通光电科技(深圳)有限公司 具有楔形导光结构的背光模组
KR20160105527A (ko) * 2008-07-10 2016-09-06 쓰리엠 이노베이티브 프로퍼티즈 컴파니 점탄성 도광체
TWI375822B (en) * 2008-10-15 2012-11-01 Au Optronics Corp Light guide plate and backlight module using the same
CN102128415A (zh) * 2010-01-19 2011-07-20 奇菱科技股份有限公司 导光板、背光模块及液晶显示装置
KR101034312B1 (ko) * 2010-11-29 2011-05-16 도레이첨단소재 주식회사 면광원장치용 도광판 및 이를 이용한 백라이트 유닛
JP5846631B2 (ja) * 2011-11-02 2016-01-20 株式会社エンプラス 導光板およびこれを備えた光学系
US9207383B2 (en) * 2012-08-31 2015-12-08 Lg Display Co., Ltd. Backlight unit and liquid crystal display device using the same
CN103511930A (zh) * 2013-10-09 2014-01-15 深圳市华星光电技术有限公司 一种led背光模组及相应的液晶显示器
US9921356B2 (en) * 2015-09-23 2018-03-20 Apple Inc. Display Backlight with Light Mixing Structures

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101261338A (zh) * 2007-03-06 2008-09-10 鸿富锦精密工业（深圳）有限公司 导光板及其制备方法
US20120257412A1 (en) * 2011-04-11 2012-10-11 Yeom Dong-Yeol Optical plate, display apparatus having the same, and method of manufacturing the optical plate
WO2013100234A1 (en) * 2011-12-29 2013-07-04 Lg Innotek Co., Ltd. Lamp device and lcd using the same
CN103727454A (zh) * 2012-10-16 2014-04-16 群康科技(深圳)有限公司 导光板、发光模块及显示装置
CN103727455A (zh) * 2012-10-16 2014-04-16 群康科技(深圳)有限公司 发光模块及显示装置
CN103901529A (zh) * 2012-12-26 2014-07-02 欧姆龙株式会社 导光板及面光源装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109212654A (zh) * 2017-06-30 2019-01-15 苏州璨宇光学有限公司 导光板
CN109212654B (zh) * 2017-06-30 2021-06-08 扬昕科技(苏州)有限公司 导光板

Also Published As

Publication number Publication date
CN105511009A (zh) 2016-04-20
US20180031754A1 (en) 2018-02-01

Similar Documents

Publication Publication Date Title
US20220113591A1 (en) Diffusion plate and backlight module
CN101303429B (zh) 光学片及其制造方法以及具有该光学片的显示设备
US9541780B2 (en) Curved surface backlight unit and curved surface display device including the same
TW200411278A (en) Reflective plate and plane light source with the same
US20120120680A1 (en) Backlight module and light guide plate thereof
CN206339809U (zh) 一种背光模组及液晶显示装置
CN101956913A (zh) 背光组件
WO2016019596A1 (zh) 背光模组结构
WO2020000729A1 (zh) 反射片、侧入式背光模组及液晶显示器
CN102472844A (zh) 光学板
TW201514590A (zh) 光源模組
CN108008576A (zh) 一种扩散片及其制作方法、背光模组及显示装置
US20150362653A1 (en) Backlight module
CN101839419A (zh) 直下式背光源模块
CN105137652A (zh) 一种扩散板、背光模组、显示装置
WO2016086534A1 (zh) 导光板及其制作方法
US8049845B2 (en) Optical diffusion device
WO2016106854A1 (zh) 导光板及具有该导光板的背光模块
TW201321861A (zh) 導光板結構及應用其之背光模組
CN204422794U (zh) 一种扩散板、背光模组及显示装置
WO2017107273A1 (zh) 导光板、背光模块及液晶显示器
WO2013189116A1 (zh) 直下式的背光模块及包括其的液晶显示器
CN102444835A (zh) 直下式背光模块与液晶显示模块
TWI799166B (zh) 光擴散片、背光單元、液晶顯示裝置以及資訊機器
TWM602646U (zh) 導光板及光源模組

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: 16877087

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: 16877087

Country of ref document: EP

Kind code of ref document: A1