CN104391350A - 一种导光板及背光模组 - Google Patents

一种导光板及背光模组 Download PDF

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CN104391350A
CN104391350A CN201410693229.8A CN201410693229A CN104391350A CN 104391350 A CN104391350 A CN 104391350A CN 201410693229 A CN201410693229 A CN 201410693229A CN 104391350 A CN104391350 A CN 104391350A
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guide plate
light guide
light
angle
exiting surface
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CN104391350B (zh
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周革革
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US14/426,748 priority patent/US9645296B2/en
Priority to PCT/CN2015/070065 priority patent/WO2016082307A1/zh
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • 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
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • 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
    • 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
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
    • 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
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Planar Illumination Modules (AREA)

Abstract

本发明公开了一种导光板，包括靠近入光侧的光导入部和远离入光侧的主体部，所述主体部上表面为出光面，所述光导入部的厚度大于所述主体部，且所述光导入部与所述主体部的连接面与所述出光面之间的第一夹角为钝角。本发明的导光板，将靠近入光侧的导光部厚度设置为大于主体部，增加了光源的光线利用率，提高了导光效率，提高了超薄导光板的背光模组的导光效果和光学品味。本发明还公开了一种具有该导光板的背光模组。

Description

一种导光板及背光模组
技术领域
本发明涉及导光技术领域，尤其涉及一种导光板及背光模组。
背景技术
目前，液晶显示装置作为电子设备的显示部件已经被广泛地应用于各种电子产品中，这些电子产品的边框越来越窄，亮度要求也越来越高，同时还要满足省电的要求；而背光模组则是液晶显示装置中的一个重要部件，消费者对于其光学品味要求也越来越高。
一般情况下，侧入式背光模组内设有导光板和设置于导光板一侧的LED光源组件，出于液晶显示装置超薄化设计和降低产品成本的考虑，背光模组内的导光板的厚度也在设计上进行了减薄处理。但是，与之匹配的LED光源组件的尺寸无法做到更窄，且LED光源组件的发光角度恒定，从而造成LED光源组件发出的光有很大一部分无法射入导光板，光源利用率低；同时，减薄后的导光板导光效率大大下降，背光效果大打折扣。
发明内容
鉴于现有技术存在的不足，本发明提供了一种光源利用率高、导光效率高、背光效果好的导光板及背光模组。
为了实现上述的目的，本发明采用了如下的技术方案：
一种导光板，包括靠近入光侧的光导入部和远离入光侧的主体部，所述主体部上表面为出光面，所述光导入部厚度大于所述主体部，且所述光导入部与所述主体部的连接面与所述出光面之间的第一夹角为钝角。
其中，所述主体部上与所述连接面相邻的两个侧壁相对于所述出光面倾斜设置，且所述侧壁与所述出光面之间的第二夹角为钝角。
其中，所述主体部上与所述连接面相对的另一侧壁相对于所述出光面倾斜设置，且所述另一侧壁与所述出光面之间的第三夹角为钝角。
其中，所述第一夹角的角度范围为120°～150°。
其中，所述第二夹角的角度范围为90°～150°。
其中，所述第三夹角的角度范围为90°～150°。
其中，所述连接面为遮光面。
或者，所述连接面为反射面。
同时，本发明还提供了一种背光模组，包括上述的导光板、设于所述导光板入光侧的LED光源组件和设于所述导光板的所述出光面上的光学膜片。
本发明的导光板，将靠近入光侧的导光部厚度设置为大于主体部，增加了光源的光线利用率，提高了导光效率，提高了超薄导光板的背光模组的导光效果和光学品味。
附图说明
图1为本发明实施例的背光模组的结构示意图。
图2为本发明实施例的导光板的结构示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
参阅图1和图2，本发明实施例的背光模组包括导光板100、设于导光板100入光侧的LED光源组件200和设于导光板100的出光面21上的光学膜片300。LED光源组件200发出的光线经导光板100后从导光板100上表面的出光面21射出至光学膜片300实现背光。
导光板100包括靠近入光侧的光导入部10和远离入光侧的主体部20，其中，主体部20上表面为出光面21，光导入部10的厚度大于主体部20，且光导入部10与主体部20的连接面30与出光面21之间的第一夹角θ1为钝角。选取第一夹角θ1的角度范围为120°～150°为宜，进一步地，本实施例中，优选θ1为120°。
通过将光导入部10的厚度设置为大于主体部20，有利于收纳LED光源组件200发出的光线，从而避免因为超薄的导光板100入光侧的尺寸过小而造成LED光源组件200发出的光线无法全部射入导光板100造成的光线利用率低的现象，有利于背光模组的超薄化设计和成本的降低。
导光板100的下表面设置背板或反射面(图未示)，用于反射射入导光板100下表面的光线。然而，由LED光源组件200发出的光线从导光板100的下表面反射后会有部分反射至两侧的侧壁20a射出，会降低导光板100的出光效率，因此，本实施例中导光板100的主体部20上与连接面30相邻的两个侧壁20a相对于出光面21倾斜设置，且侧壁20a与出光面21之间的第二夹角θ2为钝角。通过这样的设计，使得从LED光源组件200朝导光板100两侧反射的光线的入射角增大，减少了反射至两侧的侧壁20a的光线的泄露。第二夹角θ2的角度范围选取90°～150°为宜，本实施例中，进一步优选第二夹角θ2为150°。
进一步地，主体部20上与连接面30相对的另一侧壁20c也相对于出光面21倾斜设置，且该侧壁20c与出光面21之间的第三夹角θ3为钝角，可以减少该侧面20c上的光线的泄露。优选地，第三夹角θ3的角度范围选取90°～150°，进一步优选第三夹角θ3为150°。
连接面30可以设置成遮光面或者反射面，或者粘贴有遮光层或者反射层，用以防止光损失。
以上所述仅是本申请的具体实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。

Claims (9)

1.一种导光板，其特征在于，包括靠近入光侧的光导入部(10)和远离入光侧的主体部(20)，所述主体部(20)上表面为出光面(21)，所述光导入部(10)的厚度大于所述主体部(20)，且所述光导入部(10)与所述主体部(20)的连接面(30)与所述出光面(21)之间的第一夹角(θ1)为钝角。
2.根据权利要求1所述的导光板，其特征在于，所述主体部(20)上与所述连接面(30)相邻的两个侧壁(20a)相对于所述出光面(21)倾斜设置，且所述侧壁(20a)与所述出光面(21)之间的第二夹角(θ2)为钝角。
3.根据权利要求2所述的导光板，其特征在于，所述主体部(20)上与所述连接面(30)相对的另一侧壁(20c)相对于所述出光面(21)倾斜设置，且所述另一侧壁(20c)与所述出光面(21)之间的第三夹角(θ3)为钝角。
4.根据权利要求1所述的导光板，其特征在于，所述第一夹角(θ1)的角度范围为120°～150°。
5.根据权利要求2所述的导光板，其特征在于，所述第二夹角(θ2)的角度范围为90°～150°。
6.根据权利要求3所述的导光板，其特征在于，所述第三夹角(θ3)的角度范围为90°～150°。
7.根据权利要求1-6任一所述的导光板，其特征在于，所述连接面(30)为遮光面。
8.根据权利要求1-6任一所述的导光板，其特征在于，所述连接面(30)为反射面。
9.一种背光模组，其特征在于，包括权利要求1-8任一所述的导光板(100)、设于所述导光板(100)入光侧的LED光源组件(200)和设于所述导光板(100)的所述出光面(21)上的光学膜片(300)。
CN201410693229.8A 2014-11-26 2014-11-26 一种导光板及背光模组 Active CN104391350B (zh)

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US14/426,748 US9645296B2 (en) 2014-11-26 2015-01-04 Light guide plate and a backlight module
PCT/CN2015/070065 WO2016082307A1 (zh) 2014-11-26 2015-01-04 一种导光板及背光模组

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104793284A (zh) * 2015-04-30 2015-07-22 武汉华星光电技术有限公司 导光板、背光模块及液晶显示器
CN105589126A (zh) * 2016-03-21 2016-05-18 安比斯特殊玻璃（苏州）有限公司 一种复合型导光板及其液晶显示模组
CN108352267A (zh) * 2015-10-09 2018-07-31 卢特龙电子公司 具有带照亮的标记的面板的无线控制设备
CN109613752A (zh) * 2018-12-18 2019-04-12 厦门天马微电子有限公司 背光模组和显示装置
CN113466987A (zh) * 2021-07-20 2021-10-01 拓米(成都)应用技术研究院有限公司 一种导光板结构及其制备方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11133237A (ja) * 1997-10-31 1999-05-21 Sanyo Electric Co Ltd 導光板、その導光板を用いた面光源及び液晶表示装置
KR100756368B1 (ko) * 2002-12-05 2007-09-10 삼성전자주식회사 백 라이트 어셈블리 및 이를 갖는 액정표시장치
CN100395620C (zh) * 2004-12-30 2008-06-18 鸿富锦精密工业（深圳）有限公司 导光板及使用该导光板的背光模组
KR20070060266A (ko) * 2005-12-08 2007-06-13 삼성전자주식회사 백라이트 유닛 및 이를 이용한 액정표시장치
TWI350360B (en) * 2007-06-12 2011-10-11 Omron Tateisi Electronics Co Surface light source device
JP2009199866A (ja) * 2008-02-21 2009-09-03 Hitachi Displays Ltd 液晶表示装置
KR101313653B1 (ko) * 2009-06-24 2013-10-02 엘지디스플레이 주식회사 액정표시장치
JP2012014909A (ja) * 2010-06-30 2012-01-19 Omron Corp 面光源装置
CN201866639U (zh) * 2010-10-26 2011-06-15 Tcl光电科技(惠州)有限公司 一种广视角液晶背光模组
KR20120086112A (ko) * 2011-01-25 2012-08-02 삼성디스플레이 주식회사 백라이트 유닛 및 이를 포함하는 액정 표시 장치
CN202110309U (zh) * 2011-07-04 2012-01-11 北京京东方光电科技有限公司 一种导光板、背光源及显示装置
CN103033872A (zh) * 2011-10-10 2013-04-10 靖江市永盛光电科技有限公司 一种背光源超薄导光板导光结构
TW201323946A (zh) * 2011-12-01 2013-06-16 Hon Hai Prec Ind Co Ltd 導光板和背光模組
US8931943B2 (en) * 2011-12-22 2015-01-13 Minebea Co., Ltd. Spread illuminating apparatus
JP6245431B2 (ja) * 2012-12-26 2017-12-13 オムロン株式会社 面光源装置及びその導光板
CN103901525A (zh) * 2012-12-28 2014-07-02 鸿富锦精密工业（深圳）有限公司 导光板、背光模块及液晶显示装置
KR102137968B1 (ko) * 2014-02-03 2020-07-29 삼성디스플레이 주식회사 도광판, 백라이트 유닛, 표시 장치 및 도광판의 제조 방법

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104793284A (zh) * 2015-04-30 2015-07-22 武汉华星光电技术有限公司 导光板、背光模块及液晶显示器
CN108352267A (zh) * 2015-10-09 2018-07-31 卢特龙电子公司 具有带照亮的标记的面板的无线控制设备
CN105589126A (zh) * 2016-03-21 2016-05-18 安比斯特殊玻璃（苏州）有限公司 一种复合型导光板及其液晶显示模组
CN109613752A (zh) * 2018-12-18 2019-04-12 厦门天马微电子有限公司 背光模组和显示装置
CN113466987A (zh) * 2021-07-20 2021-10-01 拓米(成都)应用技术研究院有限公司 一种导光板结构及其制备方法

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