CN104914623A - 发光单元及具有该发光单元的背光光源 - Google Patents

发光单元及具有该发光单元的背光光源 Download PDF

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CN104914623A
CN104914623A CN201510344395.1A CN201510344395A CN104914623A CN 104914623 A CN104914623 A CN 104914623A CN 201510344395 A CN201510344395 A CN 201510344395A CN 104914623 A CN104914623 A CN 104914623A
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light
emitting diode
emitting component
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陈黎暄
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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 PCT/CN2015/087702 priority patent/WO2016201779A1/zh
Priority to US14/780,532 priority patent/US10437100B2/en
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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
    • G02F1/133602—Direct backlight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • 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
    • 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
    • G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/14—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array
    • F21Y2105/16—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F21Y2115/15—Organic light-emitting diodes [OLED]
    • 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
    • G02F1/133613—Direct backlight characterized by the sequence of light sources
    • 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
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Abstract

本发明公开一种发光单元，其包括：第一基板(11)及以特定排布规则布置在第一基板(11)上的多个第一发光元件(12)；第一发光元件(12)为同一种类的发光二极管或有机发光二极管；或者，第一发光元件(12)为不同种类的发光二极管或有机发光二极管。本发明还公开一种发光单元，其包括：第二基板(21)及以特定排布规则布置在第二基板(21)上的多个第二发光元件(22)和多个第三发光元件(23)；第二发光元件(22)为同一种类或不同种类的发光二极管，第三发光元件(23)为同一种类或不同种类的有机发光二极管。本发明还公开一种具有该发光单元的背光光源。本发明的发光单元满足了面板生厂商对能够产生不同频谱的显示光线的背光模块的需求。

Description

发光单元及具有该发光单元的背光光源
技术领域
本发明属于显示技术领域，具体地讲，涉及一种发光单元及具有该发光单元的背光光源。
背景技术
液晶显示器(LCD)通常包括相对设置的液晶面板和背光模块，其中，背光模块向液晶面板提供显示光线，以使液晶面板完成显示。传统的背光模块与液晶面板在尺寸大小、光谱颜色和亮度等方面进行匹配，从而保证液晶面板显示的颜色、亮度等具有良好的效果。
不同的液晶面板的彩色滤光片材料不同、厚度不同，穿透率不同，即使不同的液晶面板具有相同的尺寸大小，也需要不同的背光模块设计。现有的背光模块中，大多以发光二极管(LED)和有机发光二极管(OLED)作为基本发光单元；其中，LED依据不同的荧光粉和发光芯片，发出不同波长的光线；OLED依据不同的材料，发出不同波长的光线。
不同的背光模块产生的显示光线具有不同的波长，液晶面板借用该显示光线显示的画面呈现出不同的颜色。例如，针对全白画面，不同的背光模块和同一彩色滤光片搭配后会出现不同的色度，其中，该色度基于CIE1931系统。
随着市场和行业的发展，现今的面板生厂商以生产和销售液晶面板为主，背光模块往往在整机厂(例如，电视生产商)进行单独采购和组装。对于面板生厂商而言，主要利用背光模块对液晶面板进行可靠性测试或者点亮测试等各类测试。不同尺寸大小的液晶面板之间的差别主要体现在彩色滤光片和穿透率等方面的差别，采用不变的显示光线会导致不同的液晶面板的白点的色度不正确，对各类测试带来不利的影响。
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发光单元，其包括：第一基板、多个第一发光元件；所述多个第一发光元件以特定排布规则布置在所述第一基板上；所述第一发光元件为同一种类的发光二极管或有机发光二极管；或者，所述第一发光元件为不同种类的发光二极管或有机发光二极管。
进一步地，所述多个第一发光元件以阵列排布的方式布置在所述第一基板上。
本发明的另一目的还在于提供一种发光单元，其包括：第二基板、多个第二发光元件、多个第三发光元件；所述多个第二发光元件和所述多个第三发光元件以特定排布规则布置在所述第二基板上；所述第二发光元件为同一种类或不同种类的发光二极管，所述第三发光元件为同一种类或不同种类的有机发光二极管。
进一步地，所述多个第二发光元件和所述多个第三发光元件以阵列排布的方式布置在所述第二基板上。
进一步地，所述同一种类的发光二极管是发光频谱相同且色度相同的发光二极管。
进一步地，所述同一种类的有机发光二极管是发光频谱相同且色度相同的有机发光二极管。
进一步地，所述不同种类的发光二极管是发光频谱不同且色度不同的发光二极管。
进一步地，所述不同种类的有机发光二极管是发光频谱不同且色度不同的有机发光二极管。
本发明的又一目的又在于提供一种背光光源，其包括以特定排布规则布置的多个上述的发光单元。
进一步地，所述多个发光单元以阵列排布的方式布置。
本发明的有益效果：在本发明的发光单元及背光光源中，可以任意调配各种种类的发光元件，使背光模块产生的显示光线具有不同的频谱，满足面板生厂商对能够产生不同频谱的显示光线的背光模块的需求。
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是根据本发明的第一实施例的发光单元的结构示意图；
图2是根据本发明的第一实施例的背光光源的结构示意图；
图3是根据本发明的第二实施例的发光单元的结构示意图；
图4是根据本发明的第二实施例的背光光源的结构示意图。
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，为了清楚器件，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。将理解的是，尽管在这里可使用术语“第一”、“第二”、“第三”等来描述各种元件，但是这些元件不应受这些术语的限制。这些术语仅用于将一个元件与另一个元件区分开来。
图1是根据本发明的第一实施例的发光单元的结构示意图。
参照图1，根据本发明的第一实施例的发光单元10包括：第一基板11、多个第一发光元件12；多个第一发光元件12以阵列排布的方式布置在第一基板11上；第一发光元件12为同一种类的发光二极管(LED)或有机发光二极管(OLED)；或者，第一发光元件12为不同种类的发光二极管或有机发光二极管。
在本发明中，多个第一发光元件12的布置方式并不以图1所示为限，例如，多个第一发光元件12也可以在第一基板11上布置成圆形形状或者其他合适类型的形状。
在本发明的第一实施例中，同一种类的发光二极管指的是发光频谱相同且色度(在CIE1931系统下)相同的发光二极管。
同一种类的有机发光二极管指的是发光频谱相同且色度(在CIE1931系统下)相同的有机发光二极管。
不同种类的发光二极管指的是发光频谱不同且色度(在CIE1931系统下)不同的发光二极管。
不同种类的有机发光二极管指的是发光频谱不同且色度(在CIE1931系统下)不同的有机发光二极管。
图2是根据本发明的第一实施例的背光光源的结构示意图。
参照图2，根据本发明的第一实施例的背光光源包括：以阵列排布的方式布置的多个图1所示的发光单元10。但是，在本发明中，多个发光单元10的布置方式并不以图2所示为限，例如，多个发光单元10也可布置成圆形形状或者其他合适类型的形状。
图3是根据本发明的第二实施例的发光单元的结构示意图。
参照图3，根据本发明的第二实施例的发光单元20包括：第二基板21、多个第二发光元件22、多个第三发光元件23；多个第二发光元件22和多个第三发光元件23以阵列排布的方式布置在第二基板21上；第二发光元件22为同一种类或不同种类的发光二极管(LED)，第三发光元件23为同一种类或不同种类的有机发光二极管(OLED)。在本实施例中，多个第二发光元件22与多个第三发光元件23间隔布置，但本发明并不限制于此。
在本发明中，多个第二发光元件22和多个第三发光元件23的布置方式并不以图3所示为限，例如，多个第二发光元件22和多个第三发光元件23也可以在第二基板21上布置成圆形形状或者其他合适类型的形状。
在本发明的第二实施例中，同一种类的发光二极管指的是发光频谱相同且色度(在CIE1931系统下)相同的发光二极管。
同一种类的有机发光二极管指的是发光频谱相同且色度(在CIE1931系统下)相同的有机发光二极管。
不同种类的发光二极管指的是发光频谱不同且色度(在CIE1931系统下)不同的发光二极管。
不同种类的有机发光二极管指的是发光频谱不同且色度(在CIE1931系统下)不同的有机发光二极管。
图4是根据本发明的第二实施例的背光光源的结构示意图。
参照图4，根据本发明的第二实施例的背光光源包括：以阵列排布的方式布置的多个图3所示的发光单元20。但是，在本发明中，多个发光单元20的布置方式并不以图4所示为限，例如，多个发光单元20也可布置成圆形形状或者其他合适类型的形状。
此外，根据本发明的第一实施例和第二实施例的背光光源可应用于背光模块中，作为背光模块的出光光源，由于可以任意调配背光光源的发光单元中的每个发光元件的种类，因此应用这样的背光光源的背光模块能够产生不同频谱的显示光线。
综上所述，根据本发明的实施例的发光单元及背光光源，可以任意调配各种类型的发光元件，使背光模块产生的显示光线具有不同的频谱，满足面板生厂商对能够产生不同频谱的显示光线的背光模块的需求。
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 (10)

1.一种发光单元，其特征在于，包括：第一基板(11)、多个第一发光元件(12)；所述多个第一发光元件(12)以特定排布规则布置在所述第一基板(11)上；
所述第一发光元件(12)为同一种类的发光二极管或有机发光二极管；或者，所述第一发光元件(12)为不同种类的发光二极管或有机发光二极管。
2.根据权利要求1所述的发光单元，其特征在于，所述多个第一发光元件(12)以阵列排布的方式布置在所述第一基板(11)上。
3.一种发光单元，其特征在于，包括：第二基板(21)、多个第二发光元件(22)、多个第三发光元件(23)；所述多个第二发光元件(22)和所述多个第三发光元件(23)以特定排布规则布置在所述第二基板(21)上；
所述第二发光元件(22)为同一种类或不同种类的发光二极管，所述第三发光元件(23)为同一种类或不同种类的有机发光二极管。
4.根据权利要求3所述的发光单元，其特征在于，所述多个第二发光元件(22)和所述多个第三发光元件(23)以阵列排布的方式布置在所述第二基板(21)上。
5.根据权利要求1至4任一项所述的发光单元，其特征在于，所述同一种类的发光二极管是发光频谱相同且色度相同的发光二极管。
6.根据权利要求1至4任一项所述的发光单元，其特征在于，所述同一种类的有机发光二极管是发光频谱相同且色度相同的有机发光二极管。
7.根据权利要求1至4任一项所述的发光单元，其特征在于，所述不同种类的发光二极管是发光频谱不同且色度不同的发光二极管。
8.根据权利要求1至4任一项所述的发光单元，其特征在于，所述不同种类的有机发光二极管是发光频谱不同且色度不同的有机发光二极管。
9.一种背光光源，其特征在于，包括以特定排布规则布置的多个权利要求1至8任一项所述的发光单元。
10.根据权利要求9所述的背光光源，其特征在于，所述多个发光单元以阵列排布的方式布置。
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