CN107870478B - 液晶显示器 - Google Patents

液晶显示器 Download PDF

Info

Publication number
CN107870478B
CN107870478B CN201710755642.6A CN201710755642A CN107870478B CN 107870478 B CN107870478 B CN 107870478B CN 201710755642 A CN201710755642 A CN 201710755642A CN 107870478 B CN107870478 B CN 107870478B
Authority
CN
China
Prior art keywords
case
guide plate
light guide
liquid crystal
display panel
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.)
Active
Application number
CN201710755642.6A
Other languages
English (en)
Other versions
CN107870478A (zh
Inventor
金在凖
尹炫宇
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 CN107870478A publication Critical patent/CN107870478A/zh
Application granted granted Critical
Publication of CN107870478B publication Critical patent/CN107870478B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • 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
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0028—Light guide, e.g. taper
    • 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
    • G02B6/0075—Arrangements of multiple light guides
    • 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
    • G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
    • 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
    • G02F1/133314—Back frames
    • 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
    • G02F1/13332—Front frames
    • 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
    • G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
    • 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
    • G02F1/133606—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
    • G02F1/133615—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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133322—Mechanical guidance or alignment of LCD panel support components

Abstract

根据本发明的示例性实施方式，提供一种液晶显示器，包括：显示面板；包括发射光的多个LED的LED封装体；安装有所述LED封装体的PCB；包括导光板和后盖的背光单元，所述导光板设置在显示面板的下表面上并且具有与LED封装体相对的光进入面，所述后盖支撑导光板的下表面；壳体，所述壳体的侧表面与所述PCB接触并且所述壳体的上表面与所述后盖的下表面的一个区域接触；和上壳，所述上壳向所述显示面板的上边缘部分和所述壳体的下边缘部分施加力。根据本发明的示例性实施方式，当导光板与显示面板彼此直接接触时，无需使用单独的设备而容易地将导光板和光源对准。

Description

液晶显示器
相关申请的交叉引用
本申请要求于2016年9月22日提交的韩国专利申请第10-2016-0121310号的优先权，为了所有目的，通过引用将上述专利申请结合在此，如同在此完全阐述一样。
技术领域
本示例性实施方式涉及液晶显示器。
背景技术
液晶显示器是平板显示装置之一并且利用液晶来显示图像。液晶显示器因其纤薄、重量轻、功耗低而在整个工业中被广泛应用。液晶显示器通过改变液晶的取向而选择性地透射从背光单元发出的光，从而显示图像。作为液晶显示器的背光单元的光源，可使用发光二极管(LED)、冷阴极荧光灯(CCFL)、热阴极荧光灯(HCLF)。近来，具有优异的光效率和高色彩再现率的发光二极管被广泛用作背光单元的光源。
近来，液晶显示器因移动装置的普及和美学外观而实现更薄更轻。为此，使导光板和显示面板彼此直接接触以实现薄的液晶显示装置。然而，在这种情况下，使用单独的部件来对准和固定光源和导光板的光进入面，因而对实现薄的液晶显示器可能有限制。
发明内容
本发明的示例性实施方式的一个目的是提供一种可容易地调整导光板和光源的对准的液晶显示器。
本发明的示例性实施方式的另一个目的是提供一种薄的液晶显示器。
根据本发明的示例性实施方式的一个方面，提供一种液晶显示器，包括：显示面板；LED封装体，所述LED封装体包括发射光的多个LED；PCB，所述PCB中安装有所述LED封装体；背光单元，所述背光单元包括导光板，所述导光板设置在所述显示面板的下表面上并且具有与所述LED封装体相对的光进入面；后盖，所述后盖支撑所述导光板的下表面；壳体，所述壳体的侧表面与所述PCB接触并且所述壳体的上表面与所述后盖的下表面的一个区域接触；和上壳，所述上壳向所述显示面板的上边缘部分和所述壳体的下边缘部分施加力。
根据本发明的示例性实施方式，液晶显示器可在导光板和显示面板彼此直接接触时，无需使用单独的设备而容易地将导光板和光源对准。
此外，根据本发明的示例性实施方式，通过减少部件的数量可使液晶显示器实现为更薄。
附图说明
从下面结合附图的详细描述中将更加清楚地理解本发明的上述和其他方面、特征和其他优点，其中：
图1A是图解液晶显示器的示例性实施方式的分解透视图；
图1B是图解图1A中所示的上壳的示例性实施方式的平面图；
图1C是图解图1A中所示的上壳的示例性实施方式的底视图；
图2是图解液晶显示器的一侧的第一示例性实施方式的截面图；
图3是图解液晶显示器的一侧的第二示例性实施方式的截面图；
图4是图解液晶显示器的一侧的第三示例性实施方式的截面图；
图5是图解液晶显示器的一侧的第四示例性实施方式的截面图；和
图6是图解图2至图5中使用的PCB的示例性实施方式的透视图。
具体实施方式
下文中，将参照附图详细地描述本发明的一些实施方式。当参考标记表示每幅图的部件时，尽管在不同的附图中示出相同的部件，但尽可能地通过相同的参考标记表示相同的部件。此外，当认为对已知的相关构造或功能的描述会使本公开内容的主旨模糊不清时，将省略该描述。
此外，在描述本发明的部件时，可使用诸如第一、第二、A、B、(a)和(b)之类的术语。术语仅仅用来将一个部件与其他部件区分开，但部件的性质、次序或数量不受这些术语的限制。当描述一个部件“连接”或“耦接”至另一部件时，应理解为该部件直接连接或耦接至其他部件，但另一部件可“连接”或“耦接”在这两个部件之间。
图1A是图解液晶显示器的示例性实施方式的分解透视图，图1B是图解图1A中所示的上壳的示例性实施方式的平面图，图1C是图解图1A中所示的上壳的示例性实施方式的底视图。
参照图1A至图1C，液晶显示器100包括显示面板110、背光单元120、壳体130和上壳140。
显示面板110包括彼此相对以相接合的第一基板(未示出)和第二基板(未示出)，液晶层(未示出)在第一基板和第二基板之间。在第一基板上，多条栅极线和数据线交叉，并且薄膜晶体管设置在每个交叉点处以形成多个像素。此外，薄膜晶体管受控以针对每个像素调整液晶分子的取向。在第二基板上，形成对应于像素的红色、绿色和蓝色滤色器、设置在像素之间的黑矩阵以及公共电极。此外，显示面板110可包括分别贴合在第一基板和第二基板的外表面上的第一偏振器和第二偏振器。
背光单元120可设置在显示面板110下方。背光单元120可包括光源和导光板，导光板将从光源发出的光提供至显示面板110作为面光源。光源可以是发光二极管(LED)。在此，背光单元120被图示为具有预定厚度的矩形形状。然而，这是为了便于描述而示出的，在图2至图5中将示出详细的结构。
壳体130容纳背光单元120和显示面板110，并且调整背光单元120的光源和导光板的对准。光源和导光板的对准是指从光源发射的光的中心线与导光板的光进入面的中心线匹配。然而，本发明并不限于此，光源和导光板可被定位成从光源发射的光以高光效率透射至导光板。光效率可对应于从光源发射的光透射至导光板的量。当光源和导光板没有对准时，透射至显示面板110的光的光效率不利地降低。因此，调整和保持对准很重要。此外，当背光单元120和显示面板110容纳在壳体130中时，光源和导光板的对准是通过壳体130的形状调整的，从而可容易地调整对准。此外，壳体130可不覆盖背光单元120的整个后表面，而是覆盖背光单元120的一部分。具体地说，当直立使用显示装置100时，壳体130可设置在背光单元120的后表面下方。
上壳140被容纳在壳体130中以将背光单元120和显示面板110固定为可抑制光源和导光板的未对准的状态。此外，当从前表面观看上壳140时，上壳140的上表面140a形成为如图1B所示并且覆盖四边形显示面板110的一侧的边缘区域和连接至该侧的两侧的边缘区域的一部分。在此，显示面板110的边缘区域可指在显示面板110的前表面上具有预定宽度的边界。此外，如图1C中所示，当从后表面观看上壳140时，上壳140具有下表面140c，壳体130的边缘区域由下表面140c支撑。显示面板110和背光单元120的结合通过上壳140固定，从而可以抑制通过壳体130对准的导光板和光源因外部冲击和温度改变导致的未对准。
此外，上壳140的侧表面140b弯曲形成台阶。上壳140因台阶而具有弹性力，从而使容纳在壳体130中的背光单元120和显示面板110容易插入上壳140中。此外，尽管导光板由于外部冲击或温度改变而膨胀，但是导光板和光源通过上壳140固定至壳体130，从而抑制了未对准。
图2是图解图1中所示的液晶显示器的一侧的第一示例性实施方式的截面图，图3是图解液晶显示器的一侧的第二示例性实施方式的截面图，图4是图解液晶显示器的一侧的第三示例性实施方式的截面图，图5是图解液晶显示器的一侧的第四示例性实施方式的截面图。图3中由附图标记3XX表示的元件、图4中由附图标记4XX表示的元件以及图5中由5XX表示的元件分别与图2中由附图标记2XX表示的元件相同，因此对于不同附图中的相同元件不再进行重复描述。
参照图2至图5，在显示装置100中，支撑导光板214的下表面的后盖215设置在壳体216上，导光板214设置在后盖215上方。此外，具有包括多个LED的LED封装体217a的PCB217b安装在壳体216的侧表面上，因而LED被设置成与导光板214的光进入面相对。此外，显示面板可设置在导光板214的上表面上。在此，其中安装有LED封装体217a的PCB 217b、导光板214和后盖215可对应于图1的背光单元120。
壳体216形成为具有台阶，从而形成阶梯形卡部(step jaw portion)216a，并且后盖215的一个区域可与阶梯形卡部216a接触。当后盖215的一个区域通过阶梯形卡部216a与壳体216接触时，后盖215与壳体216的接触区域减小，因而从PCB 217b产生的热可不从壳体216传输至后盖215，所述PCB 217b中安装有LED封装体217a且设置在壳体216的侧表面上。如图2所示，阶梯形卡部216a可形成为靠近PCB 217b。壳体216由于阶梯形卡部216a不与后盖215的整个下表面接触，而是仅有阶梯形卡部216a与后盖215的边界接触。
此外，第一突出部216b形成于壳体216的阶梯形卡部216a的端部处，并且第一突出部216b插入后盖215和PCB 217b之间，因而第一突出部216b的上表面可支撑导光板214的边界。此外，PCB 217b接合至壳体216的侧表面，因而PCB 217b被固定至壳体216的侧表面。因此，LED封装体217a中的LED可与导光板214的光进入面对准。
此外，如图3所示，第二突出部316c可形成于壳体316的侧表面下方。第二突出部316c可支撑PCB 317b的下部。PCB 317b的下部被第二突出部316c支撑，因而安装在PCB317b中的LED封装体317a与导光板314的光进入面可更容易地对准。
PCB 217b与壳体216彼此接触的表面可通过粘结固定。在此，尽管粘结是指使用粘合剂固定，但本发明并不限于此，所述表面可利用螺丝钉固定。
此外，如图4所示，阶梯形卡部415a可形成为远离壳体416的与PCB 417b接触的侧表面。
此外，显示面板可设置在导光板214的上表面上。显示面板包括其间具有液晶层(未示出)的彼此相对的第一基板211a和第二基板211b。此外，显示面板可包括分别贴合至第一基板211a的上表面和第二基板211b的下表面上的第一偏振器212a和第二偏振器212b。显示面板的下表面的至少一部分可与导光板214的上表面的至少一部分直接接触。更确切地，贴合在显示面板上的第二偏振器212b的下表面的一部分可与导光板214的上表面的至少一部分直接接触。当导光板214与显示面板直接接触时，显示装置的厚度可实现为更小。
上壳219向显示面板的上表面的边缘区域和壳体216的下表面的边缘区域施加力以固定显示面板和导光板214。此外，在，上壳219被紧固至显示面板110的上边缘区域和壳体216的下边缘区域之中的靠近导光板214的光进入面和光源的边缘区域，从而可通过上壳219维持导光板214的光进入面与光源的对准。尽管导光板214会热膨胀或被施加外力，但由于上壳219压住显示面板，因此可抑制导光板214与LED封装体217a的未对准。此外，上壳219包括覆盖显示面板的上表面的边缘区域的上表面219a、覆盖壳体216的下表面的边缘区域的下表面219c、以及连接上表面219a和下表面219c并且为弯曲的侧表面219b。当上壳219的侧表面219b是弯曲的时，由于弯曲而在上壳219中产生弹性力，上壳219的紧固力由于弹性力可变得更强。
此外，上壳219的下表面219c覆盖壳体216的下表面的一部分，因而壳体216和显示面板可容易地安置在上壳219中。此外，显示装置可进一步包括与显示面板的前表面的边缘区域接触的第三突出部219d，以对与显示面板110的前表面接触的上壳219的上表面施加力。上壳219的上表面219a挤压显示面板的第一基板211a的力通过第三突出部219d得以集中，上壳219的上表面219a挤压显示面板的力通过第三突出部219d垂直地施加，因而上壳219可有效地挤压显示面板110。通过这种方式，可以抑制导光板214因环境温度升高导致的膨胀或外力而向上升起，从而抑制未对准。
此外，在壳体216中，与后盖215的下表面的一个区域接触的阶梯形卡部216a的上表面与由上壳219施加力的显示面板的上边缘部分重叠，因而上壳219的挤压力被传送至壳体216的阶梯形卡部216a，从而提高了由上壳219施加的接合力的效率。
此外，为了抑制由LED封装体217a与导光板214的光进入面之间的间隔产生的光损耗导致的热斑(hot spot)，可在封装体217a与导光板214之间，在靠近导光板214的光进入面的导光板214上表面上设置光屏蔽层218。光屏蔽层218采用绝缘胶带，从而可简单地抑制热斑。因此，可无需使用单独的结构而抑制热斑，因而显示装置100可实现为更薄。
此外，如图5所示，液晶显示器可进一步包括设置在导光板514和显示面板之间的至少一个光学片。扩散片513a、棱镜片513b和保护片513c的至少一个可以是光学片。因此，如图2至图4所示，在液晶显示器中，导光板与显示面板彼此直接接触以实现为更薄。此外，如图5所示，在导光板514与显示面板之间包括光学片，以改善背光单元的光学质量。
图6是图解图2至图5中使用的PCB的示例性实施方式的透视图。
参照图6，在PCB 617b中安装配线(未示出)，从而通过配线提供电力。此外，多个LED 617a在PCB 617b的一端处设置成一行并且连接至配线，因而每个LED 617a被提供电力而发光。在此，设置成一行的多个LED可以是图2至图5中所示的LED封装体。当指定了PCB617b的尺寸和设置在PCB 617b上的LED 617a的位置时，PCB 617b精确地贴合在壳体的侧面上，从而可使LED 617a与导光板的光进入面容易地对准。
应该理解，已通过上面的描述和附图为了举例说明的目的而描述了本公开内容的技术精神，在不背离本公开内容的范围和精神的情况下，本领域的技术人员可对部件作出组合、分离、替换和变化。因此，提供本公开内容的示例性实施方式仅出于说明目的，并不意在限制本公开内容的技术精神。本公开内容的技术精神的范围并不限于此。应当基于以下权利要求来解释本公开内容的保护范围，以及与权利要求等同的范围内的所有技术构思应当解释为落在本公开内容的范围内。

Claims (9)

1.一种液晶显示器，包括：
显示面板；
背光单元，所述背光单元包括具有多个LED的LED封装体、其中安装有所述LED封装体的PCB、和设置在所述显示面板的下表面上并且具有与所述LED封装体相对的光进入面的导光板；
后盖，所述后盖支撑所述导光板的下表面；
壳体，所述壳体的侧表面与所述PCB接触并且所述壳体的上表面与所述后盖的下表面的一个区域接触；和
上壳，所述上壳向所述显示面板的上边缘区域和所述壳体的下边缘区域施加力，
其中所述壳体包括形成于所述壳体的上表面的一端处的第一突出部，所述第一突出部插入所述PCB和所述后盖的侧表面之间，从而使所述第一突出部的一侧与所述PCB的侧表面接触，所述第一突出部的另一侧与所述后盖的侧表面接触，所述第一突出部的上表面与所述导光板的下部接触。
2.根据权利要求1所述的液晶显示器，其中所述壳体包括自所述壳体的侧表面的下部向外突出的第二突出部，所述第二突出部的上表面支撑所述PCB的下表面。
3.根据权利要求1所述的液晶显示器，进一步包括：
光屏蔽层，所述光屏蔽层设置在所述导光板的靠近所述光进入面的上表面上。
4.根据权利要求1所述的液晶显示器，其中所述上壳包括覆盖所述显示面板的上边缘区域的上表面、覆盖所述壳体的下边缘区域的下表面、和连接所述上壳的上表面和所述上壳的下表面并且为弯曲的侧表面。
5.根据权利要求1所述的液晶显示器，其中所述壳体包括与所述后盖的下表面的一个区域接触的阶梯形卡部。
6.根据权利要求4所述的液晶显示器，进一步包括：
设置在所述上壳的上表面下方的第三突出部，所述第三突出部与所述显示面板的上边缘区域接触以施加力。
7.根据权利要求5所述的液晶显示器，其中所述阶梯形卡部与由所述上壳施加力的所述显示面板的上边缘区域重叠。
8.根据权利要求5所述的液晶显示器，其中所述阶梯形卡部远离所述壳体的与所述PCB接触的侧表面。
9.根据权利要求1所述的液晶显示器，进一步包括：
设置在所述导光板和所述显示面板之间的至少一个光学片。
CN201710755642.6A 2016-09-22 2017-08-29 液晶显示器 Active CN107870478B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0121310 2016-09-22
KR1020160121310A KR102542425B1 (ko) 2016-09-22 2016-09-22 액정 표시장치

Publications (2)

Publication Number Publication Date
CN107870478A CN107870478A (zh) 2018-04-03
CN107870478B true CN107870478B (zh) 2020-11-20

Family

ID=61620265

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710755642.6A Active CN107870478B (zh) 2016-09-22 2017-08-29 液晶显示器

Country Status (3)

Country Link
US (1) US10394076B2 (zh)
KR (1) KR102542425B1 (zh)
CN (1) CN107870478B (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102649331B1 (ko) 2018-08-14 2024-03-20 삼성디스플레이 주식회사 표시장치
KR102642344B1 (ko) * 2018-09-28 2024-02-29 삼성디스플레이 주식회사 표시 장치
CN109782484B (zh) * 2019-01-24 2022-02-25 重庆京东方显示照明有限公司 背光源限位结构及背光源模组
KR20200099225A (ko) 2019-02-13 2020-08-24 삼성디스플레이 주식회사 표시 장치

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101178507A (zh) * 2006-11-09 2008-05-14 中华映管股份有限公司 液晶显示器
KR20110039092A (ko) * 2009-10-09 2011-04-15 엘지디스플레이 주식회사 액정표시장치
CN102352991A (zh) * 2011-09-28 2012-02-15 深圳市华星光电技术有限公司 一种led背光模组及液晶显示装置
CN102393578A (zh) * 2011-12-02 2012-03-28 深圳市华星光电技术有限公司 液晶显示装置及其机壳
CN102749738A (zh) * 2012-07-19 2012-10-24 深圳市华星光电技术有限公司 一种液晶显示装置
CN104094336A (zh) * 2012-02-06 2014-10-08 夏普株式会社 显示装置和电视接收装置
CN104715678A (zh) * 2013-12-12 2015-06-17 乐金显示有限公司 显示装置
WO2016139780A1 (ja) * 2015-03-04 2016-09-09 堺ディスプレイプロダクト株式会社 光源装置及び表示装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100656543B1 (ko) * 1999-12-20 2006-12-12 삼성전자주식회사 액정표시장치
KR20080060101A (ko) * 2006-12-26 2008-07-01 엘지디스플레이 주식회사 액정표시장치
KR101728351B1 (ko) * 2010-11-25 2017-04-19 엘지디스플레이 주식회사 액정표시장치
KR101807872B1 (ko) * 2010-12-28 2017-12-12 엘지디스플레이 주식회사 백라이트 유닛 및 이를 구비한 액정표시장치
US20130077014A1 (en) * 2011-09-28 2013-03-28 Shenzhen China Star Optoelectronics Technology Co., Ltd. LED Backlight Module and Liquid Crystal Display Device
US20150212261A1 (en) * 2012-08-08 2015-07-30 Sharp Kabushiki Kaisha Lighting apparatus, display apparatus, and television receiver
KR102169102B1 (ko) * 2013-12-04 2020-10-23 삼성디스플레이 주식회사 표시 장치용 하부 샤시 및 이를 포함하는 표시 장치
CN103823319B (zh) * 2014-03-10 2016-03-09 深圳市华星光电技术有限公司 背光模组及用该背光模组的液晶显示装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101178507A (zh) * 2006-11-09 2008-05-14 中华映管股份有限公司 液晶显示器
KR20110039092A (ko) * 2009-10-09 2011-04-15 엘지디스플레이 주식회사 액정표시장치
CN102352991A (zh) * 2011-09-28 2012-02-15 深圳市华星光电技术有限公司 一种led背光模组及液晶显示装置
CN102393578A (zh) * 2011-12-02 2012-03-28 深圳市华星光电技术有限公司 液晶显示装置及其机壳
CN104094336A (zh) * 2012-02-06 2014-10-08 夏普株式会社 显示装置和电视接收装置
CN102749738A (zh) * 2012-07-19 2012-10-24 深圳市华星光电技术有限公司 一种液晶显示装置
CN104715678A (zh) * 2013-12-12 2015-06-17 乐金显示有限公司 显示装置
WO2016139780A1 (ja) * 2015-03-04 2016-09-09 堺ディスプレイプロダクト株式会社 光源装置及び表示装置

Also Published As

Publication number Publication date
US20180081240A1 (en) 2018-03-22
KR102542425B1 (ko) 2023-06-13
KR20180032705A (ko) 2018-04-02
US10394076B2 (en) 2019-08-27
CN107870478A (zh) 2018-04-03

Similar Documents

Publication Publication Date Title
US9195087B2 (en) Display device and television device
KR101804892B1 (ko) 발광다이오드어셈블리 및 그를 포함한 액정표시장치
CN107870478B (zh) 液晶显示器
US8885350B2 (en) Display device and television receiver
US20120163023A1 (en) Display apparatus having thermally protected backlight assembly
KR101418920B1 (ko) 액정표시장치용 백라이트 유닛
US9423640B2 (en) Display device comprising a first positioning portion opposite to a second positioning portion and television device having the same
US8228459B2 (en) Backlight unit and liquid crystal display device having the same
US10048517B2 (en) Backlight device and liquid crystal display apparatus
KR101942983B1 (ko) 액정표시장치
KR20140082557A (ko) 액정표시장치
KR101442583B1 (ko) 액정표시장치
US9354384B2 (en) Display device comprising a heat dissipation member having a stand-up portion projecting toward a display panel and television device
KR20160073683A (ko) 액정표시장치
US20150234226A1 (en) Display device and television receiver device
KR20160001872A (ko) 액정표시장치
KR20130035120A (ko) 백라이트 유닛 및 이를 포함하는 액정표시장치모듈
US20160102847A1 (en) Lighting device, display device, and television receiving device
KR101803910B1 (ko) 액정표시장치
KR102047223B1 (ko) 엘이디를 사용하는 백라이트유닛 및 이를 포함하는 액정표시장치
US20150146109A1 (en) Display device and television device
US9784906B2 (en) Lighting device, display device, and television device
KR20120042030A (ko) 표시 장치
JP5705701B2 (ja) 液晶表示装置
US20150103259A1 (en) Lighting device, display device and television device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant