WO2016183879A1 - 导光板、背光模组及显示器 - Google Patents

导光板、背光模组及显示器 Download PDF

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Publication number
WO2016183879A1
WO2016183879A1 PCT/CN2015/080583 CN2015080583W WO2016183879A1 WO 2016183879 A1 WO2016183879 A1 WO 2016183879A1 CN 2015080583 W CN2015080583 W CN 2015080583W WO 2016183879 A1 WO2016183879 A1 WO 2016183879A1
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WIPO (PCT)
Prior art keywords
light
sub
backlight module
guide plate
board
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Ceased
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PCT/CN2015/080583
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English (en)
French (fr)
Inventor
陈玲艳
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to US14/655,592 priority Critical patent/US9766387B2/en
Publication of WO2016183879A1 publication Critical patent/WO2016183879A1/zh
Anticipated expiration legal-status Critical
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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
    • G02B6/0013—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
    • G02B6/0026—Wavelength selective element, sheet or layer, e.g. filter or grating
    • 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
    • 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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • 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
    • G02B6/0003—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 doped with fluorescent agents
    • 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
    • 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
    • G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light

Definitions

  • the present invention relates to the field of liquid crystal display technologies, and in particular, to a light guide plate, a backlight module, and a display.
  • Liquid crystal displays are the mainstream flat panel display technology on the market today.
  • the display requires a backlight to illuminate the liquid crystal display as a light source.
  • the conventional backlight module comprises a backlight composed of LEDs.
  • the light of the backlight is converted into a surface light source through the light guide plate, and is emitted from the backlight module through the uniformity of the diffusion sheet, and the liquid crystal panel can display us.
  • people are increasingly demanding the quality of displays, and high color gamut has become a hot topic in the field.
  • the quantum dot is a quasi-zero-dimensional nanomaterial composed of a small number of atoms; its particle size is generally between 1 and 10 nm, due to The electrons and holes are quantum confinement, and the continuous band structure becomes a discrete energy level structure with molecular characteristics. After excitation, it can emit fluorescence, thereby changing the color gamut of the injected light.
  • the quantum dot film is used to replace the phosphor, and the quantum dot film is loaded between the light guide plate and the prism sheet to improve the color gamut of the liquid crystal display.
  • the quantum dot film is very thick (the average quantum dot film reaches 210 um or more), and there is a problem of edge failure, which makes it particularly thin in electronic products. Mobile phone applications are limited.
  • the technical problem to be solved by the present invention is to provide a light guide plate that does not affect the thickness of the backlight module and improves the backlight color gamut.
  • the invention also provides a backlight module and a display.
  • the present invention provides a light guide plate for use in a backlight module.
  • the light guide plate includes a main body and a sub-board.
  • the main body includes a light-emitting surface, a back surface opposite to the light-emitting surface, and a first surface connecting the light-emitting surface and the back surface.
  • a plurality of uniformly distributed quantum dots are embedded in the light-emitting surface, and the auxiliary plate body is disposed on the first light-incident surface of the main body and completely covers the first light-incident surface.
  • the surface of the sub-board away from the first light incident surface is a second light incident surface, and the second light incident surface is disposed opposite to the backlight of the backlight module.
  • the quantum dot and the sub-plate body are embedded in the sub-plate body by in-mold molding.
  • the surface of the sub-board opposite to the second light-incident surface is a bonding surface, and the bonding surface is completely adhered to the first light-incident surface, and one end of the sub-board and the back surface Flat, the other end face is above the light exiting surface.
  • the surface of the sub-board opposite to the second light-incident surface is a bonding surface, and the bonding surface is completely adhered to the first light-incident surface, and one end of the sub-board and the back surface Flat, the other end face is flush with the light exit surface.
  • the light emitting surface is provided with a light homogenizing structure
  • the back surface is provided with a light guiding structure.
  • main body body and the sub-board body are connected and fixed by surface chemical treatment.
  • the sizes of the plurality of quantum dots are not completely the same.
  • the present invention provides a backlight module including a plastic frame, a backlight, and an optical film.
  • the backlight module includes the light guide plate, the light guide plate is disposed on the plastic frame, and the optical film is positioned. On the light-emitting surface of the light guide plate, the optical film is stacked on the main body, and the backlight is located on one side of the second light-incident surface.
  • the backlight module further includes a double-sided tape, and the double-sided tape is used for fixing the plastic frame, the sub-board body and the optical film.
  • the present invention provides a display comprising a liquid crystal panel and the backlight module, the liquid crystal panel is disposed on the backlight module, and the liquid crystal panel covers the optical film.
  • the light guide plate of the present invention is formed by the sub-board body and the main body, and a quantum dot capable of changing the color gamut is embedded in the sub-plate body as a light-in part of the incident light, which not only improves the color gamut quality, but also ensures the quantum dot.
  • the light guide plate structure is directly used without being affected by the environment, and the quantum dot package structure with a relatively small thickness is not required, and the thickness dimension of the backlight module is reduced, which provides a basis for the thinning of the display device.
  • FIG. 1 is a schematic structural view of a light guide plate in a preferred embodiment of the present invention.
  • FIG. 2 is a schematic cross-sectional view of a backlight module of the present invention.
  • a preferred embodiment of the present invention provides a light guide plate 10 for use in a backlight module 100.
  • the light guide plate 10 includes a main body 11 and a sub-board 13 .
  • the main body 11 includes a light-emitting surface 111, a back surface 112 opposite to the light-emitting surface 111, and a first light-incident surface 113 connecting the light-emitting surface 111 and the back surface 112.
  • a plurality of uniformly distributed quantum dots 131 are embedded in the sub-plate body 13 .
  • the sub-board 13 is disposed on the first light-incident surface 113 of the main body 11 and completely covers the first light-incident surface 113.
  • the surface of the sub-board 13 away from the first light-incident surface 113 is The second light incident surface 132 is opposite to the backlight 22 of the backlight module 20 .
  • the quantum dots 113 are not exactly the same size. There may be most or a small number of quantum dots of the same size. In other facts, all quantum dots are not the same size.
  • the light guide plate 10 is a rectangular thin plate formed by connecting the main body 11 and the sub-board 13 .
  • the second light incident surface 132 is a light incident surface of the light guide plate 10 .
  • the main body 11 is a rectangular plate, and the first light incident surface 113 is an end surface of the main body 11.
  • the sub-plate body 13 is an elongated thin plate, and the second light incident surface 132 is a side surface of the sub-plate body 13.
  • the material of the main body 11 is the same as the material of the sub-board 13 after removing the quantum dots.
  • the surface of the sub-plate body 13 opposite to the second light-incident surface 132 is a bonding surface 133, and the bonding surface 133 is completely in contact with the first light-incident surface 113.
  • the length of the sub-board 13 is the same as the width of the main body 11, and the length of the second light-incident surface is the same as the length of the first light-incident surface.
  • the sub-plate body The thickness of 13 is the same as the thickness of the main body 11, or the thickness of the sub-board 13 is larger than the thickness of the main body 11.
  • the thickness of the sub-board 13 is the same as the thickness of the main body 11, the one end surface of the sub-board 13 is flush with the back surface 112, and the other end surface is flush with the light-emitting surface 111.
  • the thickness of the sub-board body 13 is greater than the thickness of the main body 11 , one end of the sub-board body 13 is flush with the back surface 112 , and the other end surface is flush with the light-emitting surface 111 .
  • the end surface of the sub-plate body 13 is the two end faces that connect the second light-incident surface 132 and the bonding surface 133.
  • the thickness of the sub-board 13 is greater than the thickness of the main body 11, and a part of the sub-board 13 protrudes from the light-emitting surface 111.
  • the quantum dot 131 and the sub-plate body 13 are embedded in the sub-plate body by in-mold molding.
  • the plurality of quantum dots 131 are simultaneously injected into the mold in the mold, and post-cure is formed, and the temperature of the quantum dot 131 injection ensures that the quantum dots 131 do not undergo a performance change.
  • the plurality of quantum dots 131 are completely covered by the outer sidewall of the sub-plate body 13, and the outer sidewalls are not implanted with quantum dots in a certain thickness direction to ensure the effect of the edge quantum dots.
  • the light-emitting surface 111 is provided with a light-homing structure
  • the back surface 112 is provided with a light-guiding structure
  • the light-guiding structure is a plurality of circles or a trapezoidal surface for assisting light to enter the light guide plate.
  • the light homogenizing structure makes the light guided by the light guide plate 10 uniform.
  • the reflective coating ensures that the optical fiber in the light guide plate is sufficiently emitted from the light-emitting surface 111 to improve the utilization of the light source.
  • a reflective sheet may be disposed under the backlight module having the light guide plate for Reflecting the light exposed on the back side of the light guide back to the light guide plate to improve light utilization.
  • the main body 11 and the sub-board 13 are connected by surface chemical treatment.
  • the surface of the bonding surface 133 and the first light incident surface 113 are mainly chemically treated, and the bonding surface 133 is completely adhered to the first light incident surface 113, and the bonding surface 133 is ensured.
  • the first light incident surface 113 is not deformed.
  • the invention provides a backlight module, which comprises a plastic frame 20, a backlight 30 and an optical film 40, and the light guide plate 10.
  • the light guide plate 10 is disposed on the plastic frame 20, the optical film 40 is positioned on the light emitting surface 111 of the light guide plate 10, and the optical film 40 is stacked on the main body 11.
  • the backlight 30 is located on one side of the second light incident surface 132.
  • the plastic frame 20, the backlight 30, the sub-board 13 and the optical film 40 are fixed by a double-sided tape 70.
  • the blue light source emitted by the LED of the backlight 30 enters the second light incident surface 132, the light source passing through the quantum dot 113 forms red light and green light, and the other portion of the LED blue light and the red light from the quantum dot 113 The green light is mixed by the first light incident surface 113 to form white light, and is emitted from the light exit surface 111 through the light guide plate 10.
  • the light guide plate 10 of the present invention has the sub-plate body 13 and the main plate body 11 formed together, and a quantum dot which can change the color gamut is embedded in the sub-plate body 13 as a light-input portion of incident light, and a light source passing through the quantum dot 113 After forming red light and green light, it is mixed with the blue light of the LED to form white light, which is emitted through the light-emitting surface 111, thereby not only improving the color gamut quality, but also directly utilizing the light guide plate structure while ensuring that the quantum dots are not affected by the environment, and the backlight module can also be utilized.
  • the assembly structure can further ensure the sealing of the quantum dots, and it is not necessary to separately provide a quantum dot package structure with a relatively thick thickness, thereby reducing the thickness dimension of the backlight module, and providing a basis for achieving thinning.
  • the backlight module further includes a bottom plate 60.
  • the plastic frame 20 is fixed to the periphery of the bottom plate 60.
  • the plastic frame 20 includes a peripheral side plate.
  • the peripheral side plate encloses a receiving space for receiving the light guide plate 10, the backlight 30, and the optical film 40.
  • the light guide plate 10 and the bottom plate 60 are stacked.
  • the backlight module further includes a double-sided tape 50, and the double-sided tape 50 is adhered to the plastic frame 20, the sub-board 13 and the optical film 40.
  • the sub-board 13 and the optical film 40 are fixed to the side plates 22 of the plastic frame 20 by double-sided tape.
  • the present invention provides a display including a liquid crystal panel and the backlight module 100.
  • the liquid crystal panel is disposed on the backlight module 100, and the liquid crystal panel covers the optical film 40.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

一种导光板（10），背光模组（100）和显示器。导光板（10）包括主板体（11）及副板体（13）。主板体（11）包括出光面（111）、与出光面（111）相反的背面（112）以及连接出光面（111）与背面（112）的第一入光面（113），副板体（13）内嵌设有数个均匀分布的量子点（131），副板体（13）固定于主板体（11）的第一入光面（113）上并完全遮盖第一入光面（113），副板体（13）远离第一入光面（113）的表面为第二入光面（132），第二入光面（132）与背光模组（100）的背光源（22）相对设置。

Description

导光板、背光模组及显示器
本发明要求2015年5月19日递交的发明名称为“导光板、背光模组及显示器”的申请号201510257881.X的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及液晶显示技术领域，特别涉及一种导光板、背光模组及显示器。
背景技术
液晶显示器是当今市场上的主流平板显示器技术。而显示器都需要背光来作为光源点亮液晶显示器。传统的背光模组包括LED组成的背光源，背光源的光线经过导光板将光源转化成面光源射出，经过扩散片的匀光作用，从背光模组出射，经过液晶面板后即可显示出我们所需要的图像。随着科技的进步，人们对显示器的品质需求越来越高，高色域成为该领域内的一个热门话题。
现在市场上一种热点技术是采用量子点(quantum dot)改进背光色域，量子点是准零维的纳米材料，由少量的原子所构成；其粒径一般介于1～10nm之间，由于电子和空穴被量子限域，连续的能带结构变成具有分子特性的分立能级结构，受激后可以发射荧光，进而改变注入光的色域。
背光模组中主要是通过量子点薄膜来替代荧光粉，将量子点薄膜加载在导光板与棱镜片之间，以改进液晶显示器的色域。但是量子点薄膜由于易受水氧等外界条件的影响，封装做得很厚(一般的量子点膜片达到210um以上)，并且存在边缘失效的问题，这样使得其在电子产品特别是薄形化手机的应用中受到限制。
发明内容
本发明所要解决的技术问题在于提供一种导光板，不影响背光模组厚度且提高背光色域。
本发明还提供一种背光模组及显示器。
为了实现上述目的，本发明实施方式提供如下技术方案：
本发明提供一种导光板，用于背光模组中，所述导光板包括主板体及副板体，所述主板体包括出光面、与出光面相反的背面及连接出光面与背面的第一入光面，所述副板体内嵌设有数个均匀分布的量子点，所述副板体设置于所述主板体的第一入光面上并完全遮盖所述第一入光面，所述副板体远离第一入光面的表面为第二入光面，所述第二入光面与背光模组的背光源相对设置。
其中，所述量子点与所述副板体通过模内成型使所述量子点嵌设于所述副板体内。
其中，所述副板体与第二入光面相反的表面为贴合面，所述贴合面与所述第一入光面完全贴合，所述副板体的一个端与所述背面平齐，另一个端面高出所述出光面。
其中，所述副板体与第二入光面相反的表面为贴合面，所述贴合面与所述第一入光面完全贴合，所述副板体的一个端与所述背面平齐，另一个端面与所述出光面平齐。
其中，所述出光面设有均光结构，所述背面设有导光结构。
其中，所述主板体与所述副板体通过表面化学处理进行连接固定。
其中，所述数个量子点的大小不完全相同。
本发明提供一种背光模组，包括胶框、背光源及光学膜片，所述背光模组包括所述的导光板，所述导光板设于所述胶框上，所述光学膜片定位于所述导光板的出光面上，且所述光学膜片与所述主板体层叠设置，所述背光源位于所述第二入光面的一侧。
其中，所述背光模组还包括双面胶，所述双面胶用于固定所述胶框、副板体及所述光学膜片上。
本发明提供一种显示器，所述显示器包括液晶面板及所述的背光模组，所述液晶面板设于所述背光模组上，且所述液晶面板覆盖所述光学膜片。
本发明的导光板由副板体与主板体共同形成，将可改变色域的量子点嵌设于所述副板体内作为入射光的入光部分，不仅提高色域品质，而且在保证量子点不受环境影响下直接利用导光板结构，无需另外设置较厚度的量子点封装结构，减少背光模组的厚度尺寸，为显示装置实现薄型化提供基础。
附图说明
为了更清楚地说明本发明的技术方案，下面将对实施方式中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以如这些附图获得其他的附图。
图1是本发明较佳实施方式中的导光板结构示意图。
图2是本发明的背光模组的截面示意图。
具体实施方式
下面将结合本发明实施方式中的附图，对本发明实施方式中的技术方案进行清楚、完整地描述。
请参阅图1与图2，本发明的较佳实施例提供了一种导光板10，用于背光模组100中。所述导光板10包括主板体11及副板体13。所述主板体11包括出光面111、与出光面111相反的背面112及连接出光面111与背面112的第一入光面113。所述副板体13内嵌设有数个均匀分布的量子点131。所述副板体13设置于所述主板体11的第一入光面113上并完全遮盖所述第一入光面113，所述副板体13远离第一入光面113的表面为第二入光面132，所述第二入光面132与背光模组20的背光源22相对设置。本实施例中，所述量子点113的大小不完全相同。可以有大部分或者小部分量子点的大小相同。其他事实方式中，所有量子点大小均不相同。
本实施例中，所述导光板10为由主板体11与副板体13连接形成的长方形薄板。所述第二入光面132为所述导光板10的入光面。所述主板体11为矩形板薄板，所述第一入光面113为主板体11的一端面。所述副板体13为长条形薄板，第二入光面132为副板体13的一侧面。所述主板体11的材料与所述副板体13除去量子点后的材料相同。
所述副板体13与第二入光面132相反的表面为贴合面133，所述贴合面133与所述第一入光面113完全贴合。所述副板体13的长度与所述主板体11的宽度相同，及第二入光面的长度与所述第一入光面的长度相同。所述副板体 13的厚度与所述主板体11的厚度相同，或者所述副板体13的厚度大于所述主板体11的厚度。
当所述副板体13的厚度与所述主板体11的厚度相同时，所述副板体13的一个端面与所述背面112平齐，另一个端面与所述出光面111平齐。当所述副板体13的厚度大于所述主板体11的厚度时，所述副板体13的一个端与所述背面112平齐，另一个端面与所述出光面111平齐。其中所述副板体13的端面为连接第二入光面132与贴合面133的两个端面。优选的，所述副板体13的厚度大于所述主板体11的厚度，所述副板体13的一部分凸出所述出光面111。
本实施例中，所述量子点131与所述副板体13通过模内成型使所述量子点嵌设于所述副板体内。所述数个量子点131与所述副板体13在模内同时注射，后固化形成，并且量子点131注射温度保证量子点131不发生性能变化。所述数个量子点131被所述副板体13的外侧壁完全包覆，及外侧壁在一定厚度方向内未注入量子点，保证边缘量子点的效果。
本实施例中，所述出光面111设有均光结构，所述背面112设有导光结构，所述导光结构为数个圆、或者梯形形成的面，用于辅助光线进入导光板。所述均光结构使得所述导光板10所导出的光均匀。优选的，所述反射涂层保证导光板内的光纤充分射出出光面111，提高光源的利用率，在其它实施方式中，可以在具有所述导光板的背光模组下方设置反光片，用于将导光板背面露出的光线反射回导光板，从而提高光线利用率。
本实施例中，所述主板体11与所述副板体13通过表面化学处理进行连接。主要是表面化学处理所述贴合面133与所述第一入光面113，使所述贴合面133与所述第一入光面113完全贴合，且保证所述贴合面133与所述第一入光面113不发生形变。
本发明提供一种背光模组，包括胶框20、背光源30及光学膜片40以及所述的导光板10。所述导光板10设于所述胶框20上，所述光学膜片40定位于所述导光板10的出光面111上，且所述光学膜片40与所述主板体11层叠设置，所述背光源30位于所述第二入光面132的一侧。所述胶框20、背光源30、副板体13及光学膜片40通过双面胶70固定。
当所述背光源30的LED发出的蓝光光源进入所述第二入光面132时，经过量子点113的光源形成红光和绿光，LED的其它部分蓝光与由量子点113的红光和绿光由所述第一入光面113并混合形成白光，经过导光板10作用由出光面111射出。
本发明的导光板10有副板体13与主板体11共同形成，将可改变色域的量子点嵌设于所述副板体13内作为入射光的入光部分，经过量子点113的光源形成红光和绿光后与LED的蓝光混合形成白光，经过出光面111射出，如此不仅提高色域品质，而且在保证量子点不受环境影响下直接利用导光板结构，也可以利用背光模组装配结构可以进一步保证量子点的封闭性，无需另外设置较厚度的量子点封装结构，减少背光模组的厚度尺寸，为实现薄型化提供基础。
本实施例中，所述背光模组还包括底板60。所述胶框20固定于底板60周缘。所述胶框20包括周侧板。所述周侧板围成收容空间，用以收容所述导光板10、背光源30及光学膜片40。所述导光板10与所述底板60层叠设置。
本实施例中，所述背光模组还包括双面胶50，所述双面胶50粘贴于所述胶框20、副板体13及所述光学膜片40上。本实施例中，所述副板体13及所述光学膜片40通过双面胶与胶框20的侧板22固定。
本发明提供一种显示器，所述显示器包括液晶面板及所述的背光模组100，所述液晶面板设于所述背光模组100上，且所述液晶面板覆盖所述光学膜片40。
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围。
[根据细则26改正27.07.2015]　
27072015
[根据细则26改正27.07.2015]　

Claims (16)

  1. 一种导光板，用于背光模组中，其特征在于，所述导光板包括主板体及副板体，所述主板体包括出光面、与出光面相反的背面及连接出光面与背面的第一入光面，所述副板体内嵌设有数个均匀分布的量子点，所述副板体设置于所述主板体的第一入光面上并完全遮盖所述第一入光面，所述副板体远离第一入光面的表面为第二入光面，所述第二入光面与背光模组的背光源相对设置。
  2. 如权利要求1所述的导光板，其特征在于，所述量子点与所述副板体通过模内成型使所述量子点嵌设于所述副板体内。
  3. 如权利要求2所述的导光板，其特征在于，所述副板体与第二入光面相反的表面为贴合面，所述贴合面与所述第一入光面完全贴合，所述副板体的一个端与所述背面平齐，另一个端面高出所述出光面。
  4. 如权利要求2所述的导光板，其特征在于，所述副板体与第二入光面相反的表面为贴合面，所述贴合面与所述第一入光面完全贴合，所述副板体的一个端与所述背面平齐，另一个端面与所述出光面平齐。
  5. 如权利要求3或4所述的导光板，其特征在于，所述出光面设有均光结构，所述背面设有导光结构。
  6. 如权利要求5所述的导光板，其特征在于，所述主板体与所述副板体通过表面化学处理进行连接。
  7. 如权利要求6所述的导光板，其特征在于，所述数个量子点的大小不完全相同。
  8. 一种背光模组，包括胶框、背光源及光学膜片，其特征在于，所述背光模组导光板，所述导光板包括主板体及副板体，所述主板体包括出光面、与出光面相反的背面及连接出光面与背面的第一入光面，所述副板体内嵌设有数个均匀分布的量子点，所述副板体设置于所述主板体的第一入光面上并完全遮盖所述第一入光面，所述副板体远离第一入光面的表面为第二入光面，所述第二入光面与背光模组的背光源相对设置；所述导光板设于所述胶框上，所述光学膜片定位于所述导光板的出光面上，且所述光学膜片与所述主板体层叠设置，所述背光源位于所述第二入光面的一侧。
  9. 如权利要求8所述的背光模组，其特征在于，所述量子点与所述副板体通过模内成型使所述量子点嵌设于所述副板体内。
  10. 如权利要求9所述的背光模组，其特征在于，所述副板体与第二入光面相反的表面为贴合面，所述贴合面与所述第一入光面完全贴合，所述副板体的一个端与所述背面平齐，另一个端面高出所述出光面。
  11. 如权利要求9所述的背光模组，其特征在于，所述副板体与第二入光面相反的表面为贴合面，所述贴合面与所述第一入光面完全贴合，所述副板体的一个端与所述背面平齐，另一个端面与所述出光面平齐。
  12. 如权利要求10或11所述的背光模组，其特征在于，所述出光面设有均光结构，所述背面设有导光结构。
  13. 如权利要求12所述的背光模组，其特征在于，所述主板体与所述副板体通过表面化学处理进行连接。
  14. 如权利要求13所述的背光模组，其特征在于，所述数个量子点的大小不完全相同。
  15. 如权利要求8所述的背光模组，其特征在于，所述背光模组还包括双面胶，所述双面胶用于固定所述胶框、副板体及所述光学膜片。
  16. 一种显示器，其特征在于，所述显示器包括液晶面板及如权利要求8至16任一项所述的背光模组，所述液晶面板设于所述背光模组上，且所述液晶面板覆盖所述光学膜片。
PCT/CN2015/080583 2015-05-19 2015-06-02 导光板、背光模组及显示器 Ceased WO2016183879A1 (zh)

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