CN101907248A - 背光单元及具有该背光单元的液晶显示设备 - Google Patents

背光单元及具有该背光单元的液晶显示设备 Download PDF

Info

Publication number
CN101907248A
CN101907248A CN2009102535522A CN200910253552A CN101907248A CN 101907248 A CN101907248 A CN 101907248A CN 2009102535522 A CN2009102535522 A CN 2009102535522A CN 200910253552 A CN200910253552 A CN 200910253552A CN 101907248 A CN101907248 A CN 101907248A
Authority
CN
China
Prior art keywords
diffusion sheet
lgp
light unit
back light
supportive body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2009102535522A
Other languages
English (en)
Other versions
CN101907248B (zh
Inventor
杨承勋
郑然济
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Display Co Ltd
Original Assignee
LG Display Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Display Co Ltd filed Critical LG Display Co Ltd
Publication of CN101907248A publication Critical patent/CN101907248A/zh
Application granted granted Critical
Publication of CN101907248B publication Critical patent/CN101907248B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • 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
    • 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
    • G02B6/0051—Diffusing 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
    • G02B6/0033—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
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133322—Mechanical guidance or alignment of LCD panel support components
    • 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
    • G02F1/133628—Illuminating devices with cooling 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50—Protective arrangements
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

Abstract

本发明公开了一种用于增强亮度并减少生产时间和成本的背光单元。该背光单元包括上表面敞开的底盖、布置在底盖内侧边缘上的多个发光二极管、与多个发光二极管平行设置的导光板以及设置在导光板上的散射片。散射片具有与支撑主体重叠的重叠区域，该支撑主体与底盖组合。此外，反射材料层形成在散射片的与重叠区域对应的上表面上。

Description

背光单元及具有该背光单元的液晶显示设备
本申请要求2009年6月8日提交的韩国专利申请10-2009-0050508的优先权，在此援引该专利申请的全部内容作为参考。
技术领域
本申请涉及一种背光单元，更具体地，涉及一种适合于增强亮度并减少制造时间和成本的背光单元以及具有该背光单元的液晶显示设备。
背景技术
广泛用于显示设备的阴极射线管(CRT)主要用作电视机或者用作测量仪器或信息终端的显示器。然而，CRT笨重的重量和巨大的尺寸成了制造小型轻量电子产品的主要障碍。
为了解决这个问题，考虑到LCD设备的诸如轻、薄和低功耗的优点，正逐步在大范围领域中使用这些LCD设备。因此，LCD设备被制成具有更大的屏幕和更薄的厚度，并消耗更少的能量。这样的LCD设备通过控制透过液晶的光量来显示图像。
与CRT不同，LCD设备并非自发光显示设备。因此，LCD包括对着LCD面板的背面设置的背光单元。该背光单元包括提供显示图像所必需的光的分立光源。实际上，背光单元使用等离子体型光源，例如冷阴极荧光灯(CCFL)、热阴极荧光灯(HCFL)、外电极荧光灯(EEFL)、外内电极荧光灯(EIFL)等。可选地，背光单元采用白光发光二极管(LED)作为光源。特别是，因为发射白光的白光LED使用寿命长、功耗低、尺寸小、经久耐用等特点，所以这样的白光LED在背光单元中广泛地使用。
图1是示出现有技术的背光单元的截面图。
如图1中所示，现有技术的背光单元包括设置在底盖90内侧边缘上并装载有多个LED 50的印刷电路板(PCB)51。背光单元还包括顺序地容纳在底盖90内的反射片80、导光板40和光学片30。底盖90与支撑主体15组合，以便固定反射片80、导光板40和光学片30。PCB 51通过第一胶带60附着到底盖90侧壁的内表面上。
背光单元包括对着支撑主体15的与导光板40重叠的背面区域设置的反光遮蔽层81。反光遮蔽层81通过第二胶带61附着到支撑主体15的背面区域上。当LED 50发光时，反光遮蔽层81使射向支撑主体15的光所产生的漏光最小化。
现有技术背光单元的这种结构因装配公差在反光遮蔽层81与导光板40之间以及发光遮蔽层81与光学片30之间造成间隙。即使现有技术的背光单元包括反光遮蔽层81，这些间隙也使得改善导光板40的入射部分中的亮度衰减变得困难，该导光板40的入射部分接收来自LED 50的光。此外，属于现有技术背光单元的附加部分的反光遮蔽层81和第二胶带61增加了生产时间和成本。
发明内容
因此，本发明关注于一种基本上克服了由于现有技术的局限和缺点而导致的一个或多个问题的背光单元及具有该背光单元的LCD设备。
本发明的一个目的在于提供一种用于增强亮度的背光单元。
本发明的另一目的在于提供一种用于减少生产时间和成本的背光单元及具有该背光单元的LCD设备。
在下面的描述中将说明本发明的其他特征和优点，这些特征和优点的一部分由下面的描述显而易见，或者可由本发明实施例的实践而领会。通过书面的说明书及权利要求以及附图中特别指出的结构可实现和获得本发明的这些优点。
根据本发明的一个概括方面，背光单元包括：上表面敞开的底盖、布置在底盖内侧边缘上的多个发光二极管、与多个发光二极管平行设置的导光板以及设置在导光板上的散射片。该散射片具有与支撑主体重叠的重叠区域，该支撑主体与底盖组合。此外，反射材料层形成在散射片的与重叠区域对应的上表面上。
本发明的另一方面的LCD设备包括：上表面敞开的底盖、布置在底盖内内侧边缘上的多个发光二极管、与多个发光二极管平行设置的导光板、设置在导光板上的散射片以及设置在散射片上方的液晶显示面板。散射片具有与支撑主体重叠的重叠区域，该支撑主体与底盖组合。此外，反射材料层形成在散射片的与重叠区域对应的上表面上。
参照下面的附图和详细描述，其他系统、方法、特征和优点对于本领域技术人员而言将是或将变得显而易见。所有这些其他的系统、方法、特征和优点都旨在包含在该描述中、在本发明的范围内并由随后的权利要求保护。该描述不应认为是对那些权利要求的限制。下面结合实施例讨论其他的方面和优点。应当理解，本发明前面的一般性描述和下面的详细描述都是示范性的和解释性的，意在对要求保护的内容提供进一步的解释。
附图说明
所包含的附图用于提供对本发明的进一步理解，并组成本申请的一部分，附图图示了本发明的实施例，并与说明书一起用于解释本发明。在附图中：
图1是示出现有技术的背光单元的截面图；
图2是示出具有本发明实施例的背光单元的LCD设备的分解透视图；以及
图3是示出沿着图2中的I-I’线截取的LCD设备的截面图。
具体实施方式
现在将详细描述本发明的实施例，附图中图解了这些实施例的一些例子。以下描述的这些实施例作为例子提供，以给本领域普通技术人员传达这些实施例的精神。因此，这些实施例可以以不同的形式实施，从而并不限于这里所述的这些实施例。此外，为了附图的简便起见，设备的尺寸和厚度可以放大表示。如果可能，在包括附图的整个说明书中将使用相同的参考数字表示相同或相似的部件。
图2是示出具有本发明实施例的背光单元的LCD设备的分解透视图。图3是示出沿着图2中的I-I’线截取的LCD设备的截面图。
参照图2和3，本发明实施例的LCD设备包括显示图像的LCD面板110、支撑LCD面板110边缘的支撑主体115和给LCD面板110提供光的背光单元120。背光单元120对着LCD面板110的背面设置。
尽管在附图中未详细示出，LCD面板110包括薄膜晶体管基板和滤色器基板以及在这两块基板之间的液晶层，薄膜晶体管基板和滤色器基板彼此相对地组合，以在它们之间保持有盒间隙。更具体地，在薄膜晶体管基板上，多条栅极线和多条数据线彼此交叉并限定多个像素，多个晶体管TFT形成在多条栅极线和多条数据线的交叉处。各个薄膜晶体管与各像素的像素电极连接。滤色器基板包括多个红色、绿色和蓝色(RGB)滤色器、黑矩阵和公共电极。各个滤色器形成在各自的像素上。黑矩阵形成在滤色器的边缘上并遮蔽栅极线、数据线和薄膜晶体管。公共电极覆盖所有的滤色器和该黑矩阵。
LCD设备还包括设置在LCD面板110的边缘上的栅极驱动器(未示出)和数据驱动器(未示出)。栅极驱动器电连接到栅极线，而数据驱动器连接到数据线。栅极驱动器将扫描信号施加到栅极线，而数据驱动器将数据信号施加到数据线。
可选地，栅极驱动器和数据驱动器安装在薄片状的带载封装上并连接到LCD面板110。在这种情况下，栅极驱动器和数据驱动器将扫描信号和数据信号施加到在LCD面板110上形成的多条栅极线和多条数据线，从而驱动LCD面板110上的多个像素。
设置在LCD面板110下方的背光单元120包括上表面敞开的盒形底盖190、设置在底盖190内侧边缘上的PCB 151和安装在PCB 151上的多个LED150。背光单元120还包括与多个LED 150平行设置的导光板140、设置在导光板140下方的反射片180和设置在导光板140上的光学片131-133。导光板140把来自LED 150的点入射光转换成二维光。反射片180将从导光板140向下行进的光向LCD面板110反射。光学片131-133对来自导光板140的光进行散射和会聚。
LED 150包括仅由白光LED组成的结构、由红光、绿光和蓝光LED组成的另一结构或者由白光、红光、绿光和蓝光LED组成的再一结构。LED 150安装在PCB 151的一个表面上。PCB可以由导热性能极好的金属材料形成，以使LED 150中产生的热量快速地传递到金属材料的底盖190。PCB 151通过胶带160固定到底盖190侧壁的内表面上。为了将装载有LED 150的PCB 151的热量快速地传递到底盖190，附着到PCB 151的另一表面的胶带160可以包括传导材料。
光学片130包括顺序地层叠在导光板140上的散射片133、会聚片132和保护片131。散射片133与导光板140的整个表面相对。换句话说，散射片133的尺寸能够与导光板140表面的尺寸相同。因此，散射片133具有与支撑主体115的一部分重叠的边缘区域(即重叠区域“a”)。
散射片133和支撑主体115的重叠区域“a”对应于漏光区域，在该漏光区域中，LED 150中产生的光泄露出。为了防止漏光，将反射材料层200覆盖在散射片133的重叠区域“a”上。更具体地，将反射材料层200通过印刷工艺形成在与散射片133和支撑主体115之间的重叠区域“a”对应的散射片133的部分上表面上。
可选地，反射材料层200可形成在散射片133的部分下表面上，该部分下表面与支撑主体115和散射片133的重叠区域“a”对应。在这种情况下，反射材料层200可能会因为LED 150中产生的热量而变形并使光发生折射。这样，导光板140入射部分中的亮度会不均匀。考虑到这些原因，优选地，将反射材料层200形成在散射片133的部分上表面上。
会聚片132和保护片131顺序地设置在散射片133上，与导光板140上表面上的散射片133不同，会聚片132和保护片131无需与支撑主体115重叠。
在本发明实施例的背光单元中，散射片133(更具体地，散射片133的下表面)的尺寸被描述为与导光板140上表面的尺寸相同。但是，本实施例并不限于此。换句话说，只要散射片133与支撑主体115重叠，散射片133的尺寸则可以比导光板140上表面的尺寸小。
如上所述，本发明实施例的背光单元120使导光板140上的散射片133以重叠区域“a”与支撑主体115重叠。此外，背光单元120包括涂覆在散射片133的与重叠区域“a”对应的上表面上的反射材料层200。因此，可以防止导光板140入射部分中的亮度衰减。
此外，本实施例的背光单元120去除了现有技术背光单元中的用于将反光遮蔽层附着到支撑主体的胶带。因此，本实施例的背光单元120可以减少装配时间和成本。
尽管仅仅针对上述实施例有限地解释了本发明，但本领域普通技术人员应当理解，本发明并不限于这些实施例，而是应理解为在不脱离本发明的精神的情况下，各种变化或修改是可能地。因此，本发明的范围应当仅由所附权利要求及其等价物确定。

Claims (8)

1.一种背光单元，包括：
上表面敞开的底盖；
布置在所述底盖内侧边缘上的多个发光二极管；
与所述多个发光二极管平行设置的导光板；以及
设置在所述导光板上的散射片，
其中，所述散射片具有与支撑主体重叠的重叠区域，所述支撑主体与所述底盖组合，反射材料层形成在所述散射片的与所述重叠区域对应的上表面上。
2.根据权利要求1所述的背光单元，其中，所述散射片的尺寸与所述导光板上表面的尺寸相同。
3.根据权利要求1所述的背光单元，还包括顺序地层叠在所述散射片上的会聚片和保护片。
4.根据权利要求3所述的背光单元，其中，所述会聚片和所述保护片不与所述支撑主体重叠。
5.一种液晶显示设备，包括：
上表面敞开的底盖；
布置在所述底盖内侧边缘上的多个发光二极管；
与所述多个发光二极管平行设置的导光板；
设置在所述导光板上的散射片；以及
设置在所述散射片上方的液晶显示面板，
其中，所述散射片具有与支撑主体重叠的重叠区域，所述支撑主体与所述底盖组合，反射材料层形成在散射片的与所述重叠区域对应的上表面上。
6.根据权利要求5所述的液晶显示设备，其中，所述散射片的尺寸与所述导光板上表面的尺寸相同。
7.根据权利要求5所述的液晶显示设备，还包括顺序地层叠在所述散射片和所述液晶显示面板之间的会聚片和保护片。
8.根据权利要求7所述的液晶显示设备，其中，所述会聚片和所述保护片不与所述支撑主体重叠。
CN2009102535522A 2009-06-08 2009-12-08 背光单元及具有该背光单元的液晶显示设备 Active CN101907248B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2009-0050508 2009-06-08
KR1020090050508A KR101585244B1 (ko) 2009-06-08 2009-06-08 백라이트 유닛 및 이를 구비한 액정표시장치

Publications (2)

Publication Number Publication Date
CN101907248A true CN101907248A (zh) 2010-12-08
CN101907248B CN101907248B (zh) 2012-07-18

Family

ID=43262781

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009102535522A Active CN101907248B (zh) 2009-06-08 2009-12-08 背光单元及具有该背光单元的液晶显示设备

Country Status (3)

Country Link
US (1) US8350987B2 (zh)
KR (1) KR101585244B1 (zh)
CN (1) CN101907248B (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106200112A (zh) * 2014-08-22 2016-12-07 三星电子株式会社 模框、背光单元、液晶显示器和光转换片

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101721414B1 (ko) * 2010-06-09 2017-03-31 삼성디스플레이 주식회사 백라이트 어셈블리 및 이를 포함하는 액정표시장치
US8690412B2 (en) 2012-03-15 2014-04-08 Apple Inc. Backlight structures and backlight assemblies for electronic device displays
KR102078808B1 (ko) * 2013-07-11 2020-02-20 삼성디스플레이 주식회사 백 라이트 유닛 및 이를 포함하는 표시 장치
KR20150041324A (ko) * 2013-10-08 2015-04-16 삼성디스플레이 주식회사 도광판 및 이를 구비한 백라이트 어셈블리
KR20150092436A (ko) 2014-02-04 2015-08-13 삼성디스플레이 주식회사 표시 장치
KR102490010B1 (ko) * 2016-05-02 2023-01-19 삼성디스플레이 주식회사 표시 장치
KR20180069975A (ko) * 2016-12-15 2018-06-26 엘지디스플레이 주식회사 표시장치
KR102353696B1 (ko) * 2016-12-28 2022-01-20 레이아 인코포레이티드 반사 지원 구조를 갖는 멀티뷰 디스플레이
CN110515241B (zh) * 2019-08-30 2022-03-01 厦门天马微电子有限公司 一种背光模组、显示装置及制作方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000010095A (ja) * 1998-06-22 2000-01-14 Matsushita Electric Ind Co Ltd バックライトユニット及びそれを用いた液晶表示装置
JP2002133907A (ja) * 2000-10-25 2002-05-10 Seiko Epson Corp 照明装置及びそれを用いた液晶装置
CN100507662C (zh) * 2003-01-08 2009-07-01 友达光电股份有限公司 背光模块
KR100999011B1 (ko) * 2004-04-30 2010-12-09 엘지디스플레이 주식회사 백라이트 유닛과 이를 이용한 액정표시장치
KR100586968B1 (ko) * 2004-05-28 2006-06-08 삼성전기주식회사 Ｌｅｄ 패키지 및 이를 구비한 액정표시장치용 백라이트어셈블리
TWI268388B (en) * 2005-03-11 2006-12-11 Au Optronics Corp Backlight module
JP4006650B1 (ja) * 2006-05-08 2007-11-14 ソニー株式会社 光学フィルムおよびその製造方法ならびに表示装置
JP4962086B2 (ja) * 2007-03-28 2012-06-27 日亜化学工業株式会社 バックライトユニット

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106200112A (zh) * 2014-08-22 2016-12-07 三星电子株式会社 模框、背光单元、液晶显示器和光转换片

Also Published As

Publication number Publication date
KR101585244B1 (ko) 2016-01-13
US20100309410A1 (en) 2010-12-09
US8350987B2 (en) 2013-01-08
CN101907248B (zh) 2012-07-18
KR20100131763A (ko) 2010-12-16

Similar Documents

Publication Publication Date Title
CN101907248B (zh) 背光单元及具有该背光单元的液晶显示设备
CN102086995B (zh) 背光单元及具有该背光单元的液晶显示器
CN1920625B (zh) 显示设备及其制造方法
CN106932958B (zh) 背光单元以及包括其的液晶显示装置
US20100165232A1 (en) Liquid crystal display device
CN102483535A (zh) 背光单元及包括该背光单元的液晶显示器
CN102022673A (zh) 背光单元和具有该背光单元的液晶显示设备
KR101808525B1 (ko) 액정표시장치
US20060193132A1 (en) Backlight assembly and liquid crystal display device using the same
US8264635B2 (en) Liquid crystal display having a top case with first and second frame members that are physically separated
CN101561119B (zh) 背光单元和包括该背光单元的液晶显示模块
CN102095129B (zh) 背光单元及具有该背光单元的液晶显示器
CN101452149B (zh) 液晶显示模块
CN102819139A (zh) 液晶显示装置
KR20120030909A (ko) 백라이트 유닛 및 이를 구비한 액정표시장치
CN102109712A (zh) 光成形膜及包括该光成形膜的液晶显示器
KR20130024148A (ko) 표시 장치
CN100510866C (zh) 液晶显示器
US9057912B2 (en) Backlight unit for display device
CN104061488A (zh) 背光模块及显示装置
KR20070065079A (ko) Ｌｅｄ 램프 유닛, 이를 포함하는 백라이트 어셈블리 및이를 갖는 표시 장치
US20080080209A1 (en) Lamp assembly, backlight assembly including the same and liquid crystal display including the backlight assembly
KR20120047715A (ko) 발광소자와, 이를 구비한 백라이트 및 액정표시장치
KR101807872B1 (ko) 백라이트 유닛 및 이를 구비한 액정표시장치
KR20110024270A (ko) 백라이트 유닛 및 이를 구비한 액정표시장치

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant