CN104763949A - 一种背光模组和显示装置 - Google Patents

一种背光模组和显示装置 Download PDF

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CN104763949A
CN104763949A CN201510207963.3A CN201510207963A CN104763949A CN 104763949 A CN104763949 A CN 104763949A CN 201510207963 A CN201510207963 A CN 201510207963A CN 104763949 A CN104763949 A CN 104763949A
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金起满
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BOE Technology Group Co Ltd
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Priority to US15/141,378 priority patent/US20160320541A1/en
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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
    • 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
    • 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
    • G02B6/0033—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
    • 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
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • 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
    • G02B6/0055—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
    • G02B6/0065—Manufacturing aspects; Material aspects
    • 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
    • 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
    • G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
    • 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

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Abstract

本发明提供了一种背光模组和显示装置，所述背光模组包括：导光板；设置在所述导光板入光侧的单色光源；设置在所述导光板出光面的光栅，其中所述单色光源发出的单色光线经过所述光栅衍射后沿垂直于所述导光板的方向射出；设置在所述导光板出光面的量子点板，所述量子点板将衍射后的所述单色光线转换为白色光线。本发明能够使光源射出的光线经过光栅衍射后沿垂直于导光板的方向射出，从而避免由于观看者视野角度的不同产生较大色差的问题。

Description

一种背光模组和显示装置
技术领域
本发明涉及液晶显示领域，尤其涉及一种背光模组和显示装置。
背景技术
液晶显示装置(liquid crystal display，LCD)作为大众的影像显示装置广泛使用。尤其是最近的移动装置所使用的液晶显示装置，一直尝试提高光效率来减少耗电，以及减小厚度来优化移动性的方案。
其中，为了提高光效率可以在导光板的出光面设置光栅，这样即使不使用额外的聚光板也能够大幅增加垂直方向的光，且结构简单，能够简化LCD的组装和工序。
现有的背光模组，如图1所示，包括白色光源1和设置了光栅3(grating)的导光板2(LGP)。射入光栅3的白光被聚光，因此不需要再设置棱镜板。但是由于光源1发出的白色光线包括多个不同波长的光，经过光栅3后会出现衍射现象，衍射后的光线4-6(分别对应红光、绿光和蓝光)根据其波长的不同而从光栅3的不同角度射出，因此随着观看者视野角度的不同会产生较大的色差，由此也成为了导光板实用化的阻碍。
发明内容
本发明的目的是提供一种背光模组和显示装置，使得光源射出的光线经过光栅衍射后沿垂直于导光板的方向射出，从而避免由于观看者视野角度的不同产生较大色差的问题。
为了实现上述目的，本发明实施例提供了一种背光模组，所述背光模组包括：
导光板；
设置在所述导光板入光侧的单色光源；
设置在所述导光板出光面的光栅，其中所述单色光源发出的单色光线经过所述光栅衍射后沿垂直于所述导光板的方向射出；
设置在所述导光板出光面的量子点板，所述量子点板将衍射后的所述单色光线转换为白色光线。
上述的背光模组，其中，所述单色光源为蓝色光源；
所述蓝色光源发出的光线的波长不超过460纳米。
上述的背光模组，其中，所述光栅的周期为300纳米至390纳米。
上述的背光模组，其中，所述导光板为有机玻璃PMMA导光板或亚克力Acryl导光板。
上述的背光模组，其中，所述背光模组还包括：
设置在所述导光板远离所述量子点板的一面上的反射片。
为了实现上述目的，本发明实施例还提供了一种显示装置，所述显示装置包括上述任一项所述的背光模组。
本发明实施例中的背光模组采用单色光源，单色光源产生的光线经过光栅衍射后沿垂直于导光板的方向射出，再通过量子点板将单色光源的单色光线转换为白色光线，因此使得波长不同的光线均沿垂直于导光板的方向射出，避免了由于观看者视野角度的不同产生较大色差的问题。
附图说明
图1为现有技术中的背光模组的示意图；
图2为本发明实施例提供的一种背光模组的示意图；
图3为本发明实施例提供的另一种背光模组的示意图。
其中，主要组件符号说明：
1：白色光源、2、导光板、3：光栅、4：红光、5：绿光、6：蓝光、7：量子点板、8：反射片、9：单色光源。
具体实施方式
为使本发明实施例要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。
本发明实施例提供了一种背光模组，所述背光模组如图2所示，包括：
导光板2；
设置在所述导光板2入光侧的单色光源9；
设置在所述导光板2出光面的光栅3，其中所述单色光源9发出的单色光线经过所述光栅3衍射后沿垂直于所述导光板2的方向射出；
设置在所述导光板2出光面的量子点板7，所述量子点板7将衍射后的所述单色光线转换为白色光线。
在本发明实施例中，单色光源9发出的单色光线经过光栅3，射出垂直于所述导光板2的光，理论上可以达到从-15度至+15度左右的非常窄的角度分布的光，其中优选地，所述单色光源为蓝色光源，且所述蓝色光源发出的光线的波长不超过460纳米。进一步地，射出的光线发射到量子点板7上，量子点在受到蓝光激发后发出单色光与蓝光混合从而形成白色光，因此使得波长不同的光线均沿垂直于导光板的方向射出，避免了由于观看者视野角度的不同产生较大色差的问题。
为了确保单色光线经过光栅3射出垂直于所述导光板2的光，所述光栅的周期需要为300纳米至390纳米。如果超过以上阈值范围，则射出的光不会沿垂直于导光板2的方向，而是偏向于斜方向，导致聚光效率降低。
其中，导光板为有机玻璃PMMA导光板或亚克力Acryl导光板。一般液晶显示器采用PMMA导光板，手机等终端设备采用Acryl导光板。
对本发明提供的背光模组举例说明如下。
背光模组中使用波长为450nm的蓝色光源，且使用PMMA导光板(其折射率为1.49)。假设射入导光板的蓝光的入射角为65度，光栅的周期(Λ)为330纳米，通过光栅而射出的光根据下面的衍射公式1可以得出，大部分光以1次透过光和1次反射光的形态射出，以0度为基准，具有-15度至+15度左右的窄角度分布。
   (公式1)
其中，Λ为光栅的周期，λ为蓝光的波长，m为衍射次数，θin为衍射入射角，ns为导光板折射率，为射出角度值。
当然，本发明实施例中光栅的衍射效率由光栅的宽度(W)、高度(h)以及形状决定，因此光栅的衍射效率随着光栅与光源之间距离的增加而增加，通过合理设置光栅与光源之间的距离，可以使得背光模组具有均匀的辉度。
在本发明实施例中为了形成高辉度的聚光，如图3所示，可以在导光板2远离量子点板7的一面上设置反射片8。通过反射片8将单色光源9发出的未被散射的单色光线反射进光传导区内，以提高聚光的辉度。
本发明实施例中的上述背光模组采用单色光源，将单色光源产生的光线经过光栅衍射后沿垂直于导光板的方向射出，再通过量子点板将单色光源的单色光线转换为白色光线，因此使得波长不同的光线均沿垂直于导光板的方向射出，避免了由于观看者视野角度的不同产生较大色差的问题。
另外，相比于现有的使用棱镜板的背光模组，本发明实施例提供的背光模组更为聚光，因此不需要设置棱镜板。由于本发明实施例提供的背光模组出射的光理论上可以达到从-15度至+15度左右的非常窄的角度分布，因此，即使不使用3M的隐私膜等附加的膜，本发明的曝光模组也能够使用在需要窄视野角的液晶显示装置上。
本发明实施例还提供了一种显示装置，所述显示装置包括上述的背光模组。
以上所述仅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，这些改进和润饰也应视为本发明的保护范围。

Claims (6)

1.一种背光模组，其特征在于，所述背光模组包括：
导光板；
设置在所述导光板入光侧的单色光源；
设置在所述导光板出光面的光栅，其中所述单色光源发出的单色光线经过所述光栅衍射后沿垂直于所述导光板的方向射出；
设置在所述导光板出光面的量子点板，所述量子点板将衍射后的所述单色光线转换为白色光线。
2.如权利要求1所述的背光模组，其特征在于，所述单色光源为蓝色光源；
所述蓝色光源发出的光线的波长不超过460纳米。
3.如权利要求2所述的背光模组，其特征在于，所述光栅的周期为300纳米至390纳米。
4.如权利要求1所述的背光模组，其特征在于，所述导光板为有机玻璃PMMA导光板或亚克力Acryl导光板。
5.如权利要求1-4任一项所述的背光模组，其特征在于，所述背光模组还包括：
设置在所述导光板远离所述量子点板的一面上的反射片。
6.一种显示装置，其特征在于，所述显示装置包括权利要求1-5任一项所述的背光模组。
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105301841A (zh) * 2015-11-23 2016-02-03 青岛海信电器股份有限公司 一种背光模组和液晶显示设备
WO2017036075A1 (zh) * 2015-08-31 2017-03-09 京东方科技集团股份有限公司 一种液晶显示装置
CN109212655A (zh) * 2017-06-30 2019-01-15 京东方科技集团股份有限公司 背光源及其制造方法、显示装置
CN110119048A (zh) * 2018-02-05 2019-08-13 三星显示有限公司 显示装置
WO2020177522A1 (zh) * 2019-03-05 2020-09-10 京东方科技集团股份有限公司 近眼显示设备及近眼显示系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107357075A (zh) * 2017-08-11 2017-11-17 京东方科技集团股份有限公司 显示面板及显示装置
JP7163804B2 (ja) * 2019-02-01 2022-11-01 株式会社デンソー ヘッドアップディスプレイ用照明ユニット

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101788737A (zh) * 2010-01-26 2010-07-28 友达光电股份有限公司 使用量子点荧光粉的显示装置
WO2012021643A3 (en) * 2010-08-11 2012-05-03 Qd Vision, Inc. Quantum dot based lighting
CN102830539A (zh) * 2012-09-06 2012-12-19 京东方科技集团股份有限公司 液晶显示装置
US20130010229A1 (en) * 2011-07-05 2013-01-10 Shin Jong-Suk Liquid crystal display panel including photo conversion layer and liquid crystal display device
CN104421754A (zh) * 2013-08-27 2015-03-18 信利半导体有限公司 Led光源及包括该led光源的背光源、液晶显示器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040090667A (ko) * 2003-04-18 2004-10-26 삼성전기주식회사 디스플레이용 라이트 유닛
WO2009093452A1 (ja) * 2008-01-23 2009-07-30 Panasonic Corporation 波長分離装置、これを用いた面状照明装置、及びこれを用いた液晶表示装置
US8459855B2 (en) * 2008-07-28 2013-06-11 Munisamy Anandan UV LED based color pixel backlight incorporating quantum dots for increasing color gamut of LCD
RU2011146337A (ru) * 2009-04-16 2013-05-27 Конинклейке Филипс Электроникс Н.В. Световодное устройство
KR101604497B1 (ko) * 2009-12-08 2016-03-17 엘지디스플레이 주식회사 백라이트 유닛 및 이를 구비한 액정표시장치
TWI509330B (zh) * 2010-08-05 2015-11-21 Chi Mei Materials Technology Corp 顯示裝置
WO2012146960A1 (en) * 2011-04-28 2012-11-01 Tissot Yann Waveguide apparatus for illumination systems
US9804316B2 (en) * 2013-12-20 2017-10-31 Apple Inc. Display having backlight with narrowband collimated light sources

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101788737A (zh) * 2010-01-26 2010-07-28 友达光电股份有限公司 使用量子点荧光粉的显示装置
WO2012021643A3 (en) * 2010-08-11 2012-05-03 Qd Vision, Inc. Quantum dot based lighting
US20130010229A1 (en) * 2011-07-05 2013-01-10 Shin Jong-Suk Liquid crystal display panel including photo conversion layer and liquid crystal display device
CN102830539A (zh) * 2012-09-06 2012-12-19 京东方科技集团股份有限公司 液晶显示装置
CN104421754A (zh) * 2013-08-27 2015-03-18 信利半导体有限公司 Led光源及包括该led光源的背光源、液晶显示器

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017036075A1 (zh) * 2015-08-31 2017-03-09 京东方科技集团股份有限公司 一种液晶显示装置
CN105301841A (zh) * 2015-11-23 2016-02-03 青岛海信电器股份有限公司 一种背光模组和液晶显示设备
CN109212655A (zh) * 2017-06-30 2019-01-15 京东方科技集团股份有限公司 背光源及其制造方法、显示装置
CN109212655B (zh) * 2017-06-30 2020-01-24 京东方科技集团股份有限公司 背光源及其制造方法、显示装置
US11391877B2 (en) 2017-06-30 2022-07-19 Boe Technology Group Co., Ltd. Backlight source and manufacturing method thereof, and display device
CN110119048A (zh) * 2018-02-05 2019-08-13 三星显示有限公司 显示装置
CN110119048B (zh) * 2018-02-05 2024-04-30 三星显示有限公司 显示装置
WO2020177522A1 (zh) * 2019-03-05 2020-09-10 京东方科技集团股份有限公司 近眼显示设备及近眼显示系统
US11892631B2 (en) 2019-03-05 2024-02-06 Beijing Boe Display Technology Co., Ltd. Near-eye display device and near-eye display system

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