CN105652517A - 基于激光光源的侧入式背光模组 - Google Patents

基于激光光源的侧入式背光模组 Download PDF

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CN105652517A
CN105652517A CN201610049346.XA CN201610049346A CN105652517A CN 105652517 A CN105652517 A CN 105652517A CN 201610049346 A CN201610049346 A CN 201610049346A CN 105652517 A CN105652517 A CN 105652517A
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laser
light source
light guide
backlight module
strip
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杨光
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Sichuan Changhong Electric Co Ltd
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Sichuan Changhong Electric Co Ltd
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    • 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
    • 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
    • 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
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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
    • G02F1/133628—Illuminating devices with cooling means

Abstract

本发明涉及液晶显示技术领域，提供一种基于激光光源的侧入式背光模组，以解决目前的LED背光模组的散热问题和光利用率较低的，该背光模组包括激光光源、背板、导光板和激光条，激光条包括外壳和设置在外壳内的光导纤维，所述激光光源与激光条内的光导纤维连接，激光条固定安装在背板上并与导光板的侧部正对。本发明提出的技术方案采用激光光源作为发光源，激光光源能效更高且不存在散热问题，一方面可以减小导光板与激光条之间的间隙使光利用率更高，另一方面可以取消散热器，使背光模组的厚度减小。

Description

基于激光光源的侧入式背光模组
技术领域
本发明涉及液晶显示技术领域，特别涉及一种基于激光光源的侧入式背光模组。
背景技术
液晶显示器作为电子设备的显示部件已经广泛的应用于各种电子产品中，随着电子产品轻薄化的发展，液晶显示器的厚度尺寸也越来越小，而背光模组则是液晶显示装置中的一个重要部件，背光模组的厚度决定了液晶显示装置的厚度。
目前，液晶显示器一般使用侧入式LED背光模组，如果采用LED背光模组，温度越高LED的发光效率越低，温度过高还会导致LED失效，因此LED背光模组需要有效的解决LED光源的散热问题，目前使用较多的是LED发光条散热器，随着液晶显示器轻薄化的发展方向，LED发光条散热器已经成为制约背光模组厚度的主要因素，此外，为了解决发热问题，需要在LED光源与导光板之间保留一定的间隙来防止导光板受热熔融，该间隙会导致导光板对LED光源的光的利用率降低，从而使液晶模组的光效降低。
发明内容
【要解决的技术问题】
本发明的目的是提供一种基于激光光源的侧入式背光模组，以解决目前的LED背光模组的散热问题和光利用率较低的问题。
【技术方案】
本发明是通过以下技术方案实现的。
本发明涉及一种基于激光光源的侧入式背光模组，包括激光光源、背板、导光板和激光条，所述激光条包括外壳和设置在外壳内的光导纤维，所述激光光源与激光条内的光导纤维连接，所述激光条固定安装在背板上并与导光板的侧部正对。
作为一种优选的实施方式，所述光导纤维在激光条的外壳内部呈连续分布。
作为另一种优选的实施方式，所述激光条的外壳为凹槽结构，所述光导纤维设置在凹槽结构内。
作为另一种优选的实施方式，所述背板上设置有导热材料。
【有益效果】
本发明提出的技术方案具有以下有益效果：
本发明采用激光光源作为发光源，激光光源能效更高且不存在散热问题，一方面可以减小导光板与激光条之间的间隙使光利用率更高，另一方面可以取消散热器，使背光模组的厚度减小。
附图说明
图1为本发明的实施例一提供的基于激光光源的侧入式背光模组的结构原理图。
图2为本发明的实施例一提供的激光条的结构原理图。
图3为本发明的实施例一提供的激光条的结构原理图。
图中，1-激光条；2-背板；3-导光板；4-光学膜片；5-中框；6-激光器；11-外壳；12-光导纤维。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将对本发明的具体实施方式进行清楚、完整的描述。
实施例一
图1为本发明实施例一提供的基于激光光源的侧入式背光模组的结构原理图。如图1所示，包括激光条1、背板2、导光板3、中框5、激光器6和若干光学膜片4。
导光板3设置在背板2上，光学膜片4设置在导光板3上，中框5设置在光学膜片4上。
激光条1包括外壳11和设置在外壳11内的光导纤维12，激光条1固定安装在背板2上并与导光板3的侧部正对。具体地，本实施例中，激光条1的外壳11为凹槽结构，光导纤维12设置在凹槽结构内，另外，光导纤维12在激光条的外壳11内部呈连续分布。激光器6与激光条1内的光导纤维12连接。
本实施例中，为了增强背板2的导热性能，背板2上设置有导热材料。
下面说明本实施例的工作原理。
激光器6产生激光，由光导纤维把光导入激光条1中，激光条1中的光线通过激光条1中的光导纤维端面由导光板3的侧部射入导光板3。
从以上实施例可以看出，本发明实施例采用激光光源作为发光源，激光光源能效更高且不存在散热问题，一方面可以减小导光板与激光条之间的间隙使光利用率更高，另一方面可以取消散热器，使背光模组的厚度减小。
需要说明，上述描述的实施例是本发明的一部分实施例，而不是全部实施例，也不是对本发明的限制。基于本发明的实施例，本领域普通技术人员在不付出创造性劳动前提下所获得的所有其他实施例，都属于本发明的保护范围。

Claims (4)

1.一种基于激光光源的侧入式背光模组，其特征在于包括激光光源、背板、导光板和激光条，所述激光条包括外壳和设置在外壳内的光导纤维，所述激光光源与激光条内的光导纤维连接，所述激光条固定安装在背板上并与导光板的侧部正对。
2.根据权利要求1所述的基于激光光源的侧入式背光模组，其特征在于所述光导纤维在激光条的外壳内部呈连续分布。
3.根据权利要求1或2所述的基于激光光源的侧入式背光模组，其特征在于所述激光条的外壳为凹槽结构，所述光导纤维设置在凹槽结构内。
4.根据权利要求1所述的基于激光光源的侧入式背光模组，其特征在于所述背板上设置有导热材料。
CN201610049346.XA 2016-01-22 2016-01-22 基于激光光源的侧入式背光模组 Pending CN105652517A (zh)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1629690A (zh) * 2003-12-19 2005-06-22 鸿富锦精密工业（深圳）有限公司 光源装置及其背光模组
KR20060084530A (ko) * 2005-01-20 2006-07-25 충남대학교산학협력단 누설 광섬유를 이용한 액정표시장치용 백라이트
CN1908767A (zh) * 2005-08-04 2007-02-07 安华高科技Ecbuip(新加坡)私人有限公司 适于lcd背光照明显示器的激光光源
CN101382699A (zh) * 2008-06-27 2009-03-11 青岛海信电器股份有限公司 激光背光系统
CN102062331A (zh) * 2010-09-30 2011-05-18 彭竞原 激光背光模组及具有该模组的液晶显示器
CN103791288A (zh) * 2014-01-14 2014-05-14 北京牡丹视源电子有限责任公司 一种激光灯条、由激光灯条构成的背光模组及显示器
CN107450191A (zh) * 2017-09-26 2017-12-08 山西大学 一种消散斑激光背光电视的光学系统

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1629690A (zh) * 2003-12-19 2005-06-22 鸿富锦精密工业（深圳）有限公司 光源装置及其背光模组
KR20060084530A (ko) * 2005-01-20 2006-07-25 충남대학교산학협력단 누설 광섬유를 이용한 액정표시장치용 백라이트
CN1908767A (zh) * 2005-08-04 2007-02-07 安华高科技Ecbuip(新加坡)私人有限公司 适于lcd背光照明显示器的激光光源
CN101382699A (zh) * 2008-06-27 2009-03-11 青岛海信电器股份有限公司 激光背光系统
CN102062331A (zh) * 2010-09-30 2011-05-18 彭竞原 激光背光模组及具有该模组的液晶显示器
CN103791288A (zh) * 2014-01-14 2014-05-14 北京牡丹视源电子有限责任公司 一种激光灯条、由激光灯条构成的背光模组及显示器
CN107450191A (zh) * 2017-09-26 2017-12-08 山西大学 一种消散斑激光背光电视的光学系统

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