WO2015135229A1 - 背板、用该背板的背光模组及液晶显示装置 - Google Patents

背板、用该背板的背光模组及液晶显示装置 Download PDF

Info

Publication number
WO2015135229A1
WO2015135229A1 PCT/CN2014/074008 CN2014074008W WO2015135229A1 WO 2015135229 A1 WO2015135229 A1 WO 2015135229A1 CN 2014074008 W CN2014074008 W CN 2014074008W WO 2015135229 A1 WO2015135229 A1 WO 2015135229A1
Authority
WO
WIPO (PCT)
Prior art keywords
base
backplane
backlight module
liquid crystal
light guide
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.)
Ceased
Application number
PCT/CN2014/074008
Other languages
English (en)
French (fr)
Inventor
萧宇均
李家鑫
俞刚
李全
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.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology 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 Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US14/356,381 priority Critical patent/US9366804B2/en
Publication of WO2015135229A1 publication Critical patent/WO2015135229A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • 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
    • 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
    • G02B6/0091—Positioning aspects of the light source relative 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
    • G02F1/133308—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
    • G02F1/133322—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

Definitions

  • the present invention relates to the field of liquid crystal display, and in particular to a backplane, a backlight module using the same, and a liquid crystal display device. Background technique
  • Liquid Crystal Display has many advantages such as thin body, power saving, no radiation, etc., and is widely used, such as: mobile phones, personal digital assistants (PDAs), digital cameras, computer screens or laptops. Screen, etc.
  • a conventional liquid crystal panel is composed of a color filter substrate, a thin film transistor array substrate (TFT Array Substrate), and a liquid crystal layer disposed between the two substrates.
  • TFT Array Substrate thin film transistor array substrate
  • the working principle is that the rotation of the liquid crystal molecules of the liquid crystal layer is controlled by applying a driving voltage on the two glass substrates, and the light of the backlight module is refracted to generate a picture. Since the liquid crystal panel itself does not emit light, the light source provided by the backlight module needs to be used to display the image normally.
  • the backlight module becomes one of the key components of the liquid crystal display device.
  • the backlight module is divided into a side-in backlight module and a direct-lit backlight module according to different incident positions of the light source.
  • a light source for example, a cathode fluorescent lamp (CCFL) or a light emitting diode (LED)
  • CCFL cathode fluorescent lamp
  • LED light emitting diode
  • the side-lit backlight module has a backlight LED strip (Light bar) disposed at the edge of the back panel behind the liquid crystal panel, and the light emitted by the LED strip is from the side of the light guide plate (LGP).
  • the smooth surface enters the light guide plate, is reflected and diffused, and is emitted from the light exit surface of the light guide plate, and then passes through the optical film group to form a surface light source to be supplied to the liquid crystal panel.
  • curved LCD TVs provide the best viewing performance from the edge to the edge, while ordinary LCD TVs have always been able to display the edge of the screen. Not ideal.
  • the curved design of the entire surface of the curved LCD TV is oriented in the direction of the user, providing a wide panoramic image effect, which can bring the same visual enjoyment both in the center of the screen and around the edge, and is reduced in close-up viewing. Distortion of off-axis viewing.
  • the curved LCD TV will make the user's viewing distance longer. For a better viewing experience. Therefore, compared with ordinary LCD TVs, curved LCD TVs have great advantages: 1. Brand differentiation; 2. Broader viewing angle; 3. Reduce distortion in close-up viewing.
  • a liquid crystal display device using a stepped back plate has a curved back plate structure to fit the curvature of the arc, thereby implementing bending of the backlight module.
  • the liquid crystal display device is specifically The backlight module 100, the plastic frame 300 disposed on the backlight module 100, the liquid crystal display panel 500 disposed on the plastic frame 300, and the front frame 700 disposed on the liquid crystal display panel 500, wherein the backlight module 100
  • the back plate 102 is provided in a combination of a plate shape and a stepped shape, and the curved light guide plate 104 is supported in the back plate 102 to match the curvature of the liquid crystal display panel 500.
  • the object of the present invention is to provide a backboard which uses a backing plate having a stepped structure to effectively support the light guide plate, and a curved mounting portion on the back plate for mounting the circuit board, which has a simple structure and is easy to manufacture. Can effectively reduce production costs.
  • Another object of the present invention is to provide a backlight module, which uses a back plate having a stepped structure to effectively support the light guide plate, and an arc-shaped mounting portion is disposed on the back plate for mounting the circuit board, and the structure thereof is simple. Easy to make, can effectively reduce production costs.
  • Still another object of the present invention is to provide a liquid crystal display device which uses a back plate having a stepped structure to effectively support a light guide plate, and is provided with a curved mounting portion on the back plate for mounting a circuit board, and has a simple structure Easy to make, can effectively reduce production costs.
  • the present invention provides a backboard, comprising: a bottom plate and a plurality of side plates connecting the bottom plates, wherein the bottom plate includes a base portion and a mounting portion connected to one side of the base portion, and the two ends of the base portion are respectively provided with a step
  • the structure is adapted to fit the inner side of the arcuate light guide plate, and the outer surface of the mounting portion is curved for mounting the circuit board.
  • the outer surface of the base is provided with a pair of first reinforcing ribs parallel to each other, which are parallel to the mounting portion.
  • the outer surface of the base is further provided with two second reinforcing ribs parallel to each other, and the second reinforcing rib is located at an intermediate position of the base and is vertically connected between the two first reinforcing ribs, respectively.
  • the stepped structure has a secondary step.
  • the present invention also provides a backlight module, including: a backplane, a light guide plate disposed in the backplane, and a backlight disposed in the backplane, the backplane includes a bottom panel and a plurality of side panels connecting the bottom panel,
  • the bottom plate includes a base portion and a mounting portion connected to one side of the base portion, and two ends of the base portion are respectively provided with a stepped structure to fit the inner side of the arcuate light guide plate, and the outer surface of the mounting portion is curved for mounting Circuit board.
  • the light guide plate is disposed in an arc shape, and the two ends of the light guide plate are respectively supported on the stepped structure.
  • the light guide plate has at least one light incident surface, and the backlight is disposed on the side plate corresponding to the light incident surface.
  • the outer surface of the base is provided with a pair of first reinforcing ribs which are parallel to each other and which are parallel to the mounting portion.
  • the outer surface of the base is further provided with two second reinforcing ribs parallel to each other, and the second reinforcing rib is located at an intermediate position of the base and is vertically connected between the two first reinforcing ribs, respectively.
  • the stepped structure has a secondary step.
  • the present invention also provides a liquid crystal display device, comprising: a backlight module, a plastic frame disposed on the backlight module, a liquid crystal display panel disposed on the plastic frame, a front frame disposed on the liquid crystal display panel, and being mounted on the backlight module
  • the backlight module includes a backplane, a light guide plate disposed in the backplane, and a backlight disposed in the backplane, wherein the backplane includes a bottom panel and a connection backplane
  • the bottom plate includes a base portion and a mounting portion connected to one side of the base portion, and two ends of the base portion are respectively provided with a stepped structure to accommodate the arcuate light guide plate on the inner side thereof, and the outer surface of the mounting portion is Curved to install the board.
  • the light guide plate is disposed in an arc shape, and the two ends of the light guide plate are respectively supported on the stepped structure, the light guide plate has at least one light incident surface, and the backlight is disposed on the side plate corresponding to the light incident surface;
  • the circuit board is attached to the bottom surface.
  • the outer surface of the base is provided with a pair of first reinforcing ribs which are parallel to each other and which are parallel to the mounting portion.
  • the outer surface of the base is further provided with two second reinforcing ribs parallel to each other, and the second reinforcing rib is located at an intermediate position of the base and is vertically connected between the two first reinforcing ribs, respectively.
  • the stepped structure has a secondary step.
  • the back sheet of the present invention, the backlight module using the back sheet, and the liquid crystal display device are provided with an arc-shaped mounting portion on the bottom plate of the back sheet, thereby facilitating the installation of the circuit board.
  • Single, easy to manufacture simplifies the assembly process, reduces the production cost; effectively supports the light guide plate by using the back plate with the step structure, and achieves the matching with the curvature of the liquid crystal display panel to improve the quality of the backlight module;
  • the strength of the backing plate is effectively increased by providing reinforcing ribs on the outer surface of the backing plate.
  • FIG. 1 is a schematic cross-sectional view showing a conventional liquid crystal display device
  • FIG. 2 is a schematic cross-sectional view showing a backlight module and a circuit board in a conventional liquid crystal display device
  • FIG. 3 is a schematic perspective view showing a back panel of the present invention
  • FIG. 4 is a schematic cross-sectional view of a back sheet of the present invention.
  • FIG. 5 is a schematic cross-sectional view of a backlight module of the present invention.
  • FIG. 6 is a schematic cross-sectional view showing a liquid crystal display device of the present invention. detailed description
  • the present invention provides a backboard, including: a bottom plate 2 and a plurality of side plates 4 connecting the bottom plates 2, the bottom plate 2 including a base portion 22 and a mounting portion 24 connected to the side of the base portion 22,
  • the two ends of the base 22 are respectively provided with a stepped structure 222, which cooperates with each other to fit the curvature of the circular arc for adapting to the inner side of the curved light guide plate 40 (see FIG. 5 ), the mounting portion 24
  • the outer surface is curved for mounting the circuit board 240 (see Figure 6).
  • the outer surface 224 of the base portion 22 is provided with a pair of first reinforcing ribs 226 parallel to each other, which are parallel to the mounting portion 24, and the outer surface of the base portion 22 is further provided with two second reinforcing ribs 228 parallel to each other.
  • the second reinforcing ribs 228 are located at an intermediate position of the base 22 and are vertically connected between the two first reinforcing ribs 226, respectively.
  • the combination of the first reinforcing rib 226 and the second reinforcing rib 228 can effectively increase the strength of the backing plate.
  • the step structure 222 has two steps, and correspondingly, the side plate 4 and the base 22 together form a three-step.
  • the back plate can be formed by stamping, has a simple structure, does not need to bend a large sheet metal, and also avoids the use of the existing steel bracket, reduces the production cost, and the curved mounting portion 24 is advantageous. Install the circuit board 240 and place the COF.
  • the present invention further provides a backlight module, including: a back plate 20, a light guide plate 40 disposed in the back plate 20, and a backlight 60 disposed in the back plate 20.
  • the back plate 20 includes a bottom plate 2 and a plurality of side plates 4 connecting the bottom plates 2 .
  • the bottom plate 2 includes a base portion 22 and a mounting portion 24 connected to the side of the base portion 22 , the base portion 22 .
  • the two ends are respectively provided with a stepped structure 222, which cooperates with each other to fit the curvature of the arc to fit the inner side of the arcuate light guide plate, and the outer surface of the mounting portion 24 is curved for mounting the circuit.
  • Board 240 see Figure 6).
  • the outer surface 224 of the base portion 22 is provided with a pair of first reinforcing ribs 226 parallel to each other, which are parallel to the mounting portion 24, and the outer surface of the base portion 22 is further provided with two second reinforcing ribs 228 parallel to each other.
  • the second reinforcing ribs 228 are located at an intermediate position of the base 22 and are vertically connected between the two first reinforcing ribs 226, respectively.
  • the combination of the first reinforcing rib 226 and the second reinforcing rib 228 can effectively increase the strength of the backing plate to better support the optical components such as the light guiding plate.
  • the stepped structure 222 has two steps, and correspondingly, the side plate 4 and the base 22 form a three-step.
  • the light guide plate 40 is disposed in an arc shape, and the two ends of the light guide plate 40 are respectively supported and mounted on the step structure 222.
  • the light guide plate 40 has at least one light incident surface 420, and the backlight 60 corresponds to the The light incident surface 420 is disposed on the side plate 4, and the backlight 60 emits light, enters the light guide plate 40, and is converted into a surface light source via the light guide plate 40.
  • the present invention further provides a liquid crystal display device, including: a backlight module 200, a plastic frame 400 disposed on the backlight module 200, a liquid crystal display panel 600 disposed on the plastic frame 400, and a liquid crystal display.
  • the front frame 800 on the panel 600 and the circuit board 240 mounted on the backlight module 200 and electrically connected to the liquid crystal display panel 600.
  • the backplane provided by the present invention, the backlight module using the backplane, and the liquid crystal display device are provided with an arc-shaped mounting portion on the bottom plate of the backboard to facilitate installation of the circuit board;
  • the back plate effectively supports the light guide plate and realizes the cooperation with the curvature of the liquid crystal display panel to improve the quality of the backlight module.
  • the strength of the back plate can be effectively increased, and the Good support of optical components such as light guide plates makes the back plate structure simple and easy to manufacture, which simplifies the assembly process and reduces the production cost.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种背板（20）、用该背板（20）的背光模组（200）及液晶显示装置。背板（20）包括：底板（2）及连接底板（2）的数个侧板（4），底板（2）包括基部（22）及连接于基部（22）一侧的安装部（24）。基部（22）的两端分布设有阶梯结构（222），以适应安装弧形导光板（40）于其内侧。安装部（24）的外表面呈弧形，用于安装电路板（240）。基部（22）的外表面上设有第一加强筋（226）及与其垂直连接的第二加强筋（228）。这种背板（20）、用该背板（20）的背光模组（200）及液晶显示装置结构简单、易制作，简化了组装工艺，降低了生产成本。

Description

背板、 用该背板的背光模组及液晶显示装置 技术领域
本发明涉及液晶显示领域， 尤其涉及一种背板、 用该背板的背光模组 及液晶显示装置。 背景技术
液晶显示装置 （ Liquid Crystal Display, LCD )具有机身薄、 省电、 无 辐射等众多优点， 得到了广泛的应用， 如： 移动电话、 个人数字助理 ( PDA ) 、 数字相机、 计算机屏幕或笔记本电脑屏幕等。
现有市场上的液晶显示装置大部分为背光型液晶显示装置， 其包括壳 体、 设于壳体内的液晶面板及设于壳体内的背光模组 （ Backlight module ) 。 传统的液晶面板的结构是由一彩色滤光片基板 ( Color Filter ) 、 一薄膜晶体管阵列基板 ( Thin Film Transistor Array Substrate , TFT Array Substrate ) 以及一配置于两基板间的液晶层 （ Liquid Crystal Layer )所构成， 其工作原理是通过在两片玻璃基板上施加驱动电压来控制 液晶层的液晶分子的旋转， 将背光模组的光线折射出来产生画面。 由于液 晶面板本身不发光， 需要借由背光模组提供的光源来正常显示影像， 因 此， 背光模组成为液晶显示装置的关键组件之一。 背光模组依照光源入射 位置的不同分成侧入式背光模组与直下式背光模组。 直下式背光模组是将 发光光源 （例如阴极萤光灯管 （Cold Cathode Fluorescent Lamp, CCFL ) 或发光二极管 （Light Emitting Diode, LED ) )设置在液晶面板后方， 直 接形成面光源提供给液晶面板。 而侧入式背光模组是将背光源 LED 灯条 ( Light bar )设于液晶面板侧后方的背板边缘处， LED 灯条发出的光线从 导光板（Light Guide Plate, LGP )一侧的入光面进入导光板， 经反射和扩 散后从导光板出光面射出， 再经由光学膜片组， 以形成面光源提供给液晶 面板。
近年来， 各大厂商陆续的推出了曲面的液晶电视， 整体而言， 曲面的 液晶电视从边缘到边缘都能提供最佳的观看效果， 而普通的液晶电视在屏 幕边缘方面的呈现能力一直相对不太理想。 曲面液晶电视整片屏幕朝用户 方向包围的弧形设计， 可提供宽阔的全景影像效果， 不论是在屏幕中央还 是边缘四周， 都能够带来同样的视觉享受， 并且在近距离观看时还减少了 离轴观看的失真度。 此外， 曲面的液晶电视会让用户的观赏距离拉长， 达 到更好的观赏体验。 因此， 相比于普通的液晶电视， 曲面的液晶电视有着 很大的优势： 1、 品牌的差异化； 2、 更宽广的可视角度； 3、 减少近距离 观看的失真度。
目前， 市场上已存在的曲面液晶电视是由弯曲的背光模组和弯曲的液 晶面板组装而成。 由于大片的弯曲钣金件比较难制作， 一般都是通过制作 弯曲的钢支架， 再将钢支架锁附到本身为平整的背板上， 将其强制弯曲， 来实现背光模组的弯曲。 这会增加背光模组的成本， 同时使背板的结构变 得很复杂。
针对上述问题， 现有一种釆用阶梯背板的液晶显示装置， 通过阶梯状 的背板结构来拟合圓弧的曲率， 进而实现背光模组的弯曲， 请参照图 1， 该液晶显示装置具体包括： 背光模组 100、 设于背光模组 100 上的胶框 300、 设于胶框 300上的液晶显示面板 500及设于液晶显示面板 500上的 前框 700， 其中， 背光模组 100的背板 102设置为板状与阶梯状相结合的 结构， 弧形导光板 104支撑在背板 102内， 以配合液晶显示面板 500的的 曲率， 然而， 这样的结构导致电路板（X_Board ) 900无法固定在背板 102 的底面上 （如图 2所示） ， 而且该阶梯状背板 102的底面到液晶显示面板 500的 TFT ( Thin Film Transistor, 薄膜场效应晶体管）上表面的各个位置 距离不同， 导致有些位置 COF ( Chip On Film, 薄膜芯片集成） 太短， 无 法绕到该阶梯背板 102的底面， 增加了组装难度。 发明内容
本发明的目的在于提供一种背板， 釆用具有阶梯结构的背板， 有效支 撑导光板， 且在背板上设置弧形的安装部， 用于安装电路板， 其结构简 单、 易制作， 能有效的降低生产成本。
本发明的另一目的在于提供一种背光模组， 釆用具有阶梯结构的背 板， 有效支撑导光板， 且在背板上设置弧形的安装部， 用于安装电路板， 其结构简单、 易制作， 能有效的降低生产成本。
本发明的又一目的在于提供一种液晶显示装置， 釆用具有阶梯结构的 背板， 有效支撑导光板， 且通过在背板上设置弧形的安装部， 用于安装电 路板， 其结构简单、 易制作， 能有效的降低生产成本。
为实现上述目的， 本发明提供一种背板， 包括： 底板及连接底板的数 个侧板， 所述底板包括基部及连接于基部一侧的安装部， 所述基部的两端 分别设有阶梯结构以用于适应安装弧形导光板于其内侧， 该安装部的外表 面呈弧形， 以用于安装电路板。 所述基部的外表面设有相互平行的一对第一加强筋， 其与安装部平 行。
所述基部的外表面还设有两相互平行的第二加强筋， 所述第二加强筋 位于基部的中间位置且分别垂直连接于所述两第一加强筋之间。
具体地， 所述阶梯结构具有二级台阶。
本发明还提供一种背光模组， 包括： 背板、 设于背板内的导光板及设 于背板内的背光源， 所述背板包括底板及连接底板的数个侧板， 所述底板 包括基部、 及连接于基部一侧的安装部， 所述基部的两端分别设有阶梯结 构以适应安装弧形导光板于其内侧， 该安装部的外表面呈弧形， 以用于安 装电路板。
所述导光板呈弧形设置， 其两端分别支撑于所述阶梯结构上， 该导光 板具有至少一个入光面， 所述背光源对应所述入光面设于所述侧板上。
所述基部的外表面设有相互平行的一对第一加强筋， 其与安装部平 行。
所述基部的外表面还设有两相互平行的第二加强筋， 所述第二加强 筋， 位于基部的中间位置且分别垂直连接于所述两第一加强筋之间。
所述阶梯结构具有二级台阶。
本发明还提供一种液晶显示装置， 包括： 背光模组、 设于背光模组上 的胶框、 设于胶框上的液晶显示面板、 设于液晶显示面板上的前框及安装 于背光模组上且电性连接于液晶显示面板的电路板； 所述背光模组包括背 板、 设于背板内的导光板及设于背板内的背光源， 所述背板包括底板及连 接底板的数个侧板， 所述底板包括基部及连接于基部一侧的安装部， 所述 基部的两端分别设有阶梯结构以适应安装弧形导光板于其内侧， 该安装部 的外表面呈弧形， 以安装电路板。
所述导光板呈弧形设置， 其两端分别支撑于所述阶梯结构上， 该导光 板具有至少一个入光面， 所述背光源对应所述入光面设于所述侧板上； 所 述电路板贴附于所述底面上。
所述基部的外表面设有相互平行的一对第一加强筋， 其与安装部平 行。
所述基部的外表面还设有两相互平行的第二加强筋， 所述第二加强 筋， 位于基部的中间位置且分别垂直连接于所述两第一加强筋之间。
所述阶梯结构具有二级台阶。
本发明的有益效果： 本发明的背板、 用该背板的背光模组及液晶显示 装置， 通过在背板的底板上设置弧形的安装部， 方便安装电路板， 结构简 单、 易制作， 简化了组装工艺， 降低了生产成本； 通过釆用具有阶梯结构 的背板， 有效支撑导光板， 并实现与液晶显示面板的曲率的配合， 提高背 光模组的品质； 同时， 通过在背板的外表面上设置加强筋， 有效增加背板 的强度。
为了能更进一步了解本发明的特征以及技术内容， 请参阅以下有关本 发明的详细说明与附图， 然而附图仅提供参考与说明用， 并非用来对本发 明加以限制。 附图说明
下面结合附图， 通过对本发明的具体实施方式详细描述， 将使本发明 的技术方案及其它有益效果显而易见。
附图中，
图 1为现有的液晶显示装置的剖面示意图；
图 2为现有的液晶显示装置中背光模组与电路板配合的剖面示意图； 图 3为本发明背板的立体结构示意图；
图 4为本发明背板的剖面示意图；
图 5为本发明背光模组的剖面示意图；
图 6为本发明液晶显示装置的剖面示意图。 具体实施方式
为更进一步阐述本发明所釆取的技术手段及其效果， 以下结合本发明 的优选实施例及其附图进行详细描述。
请参阅图 3及图 4， 本发明提供一种背板， 包括： 底板 2及连接底板 2的数个侧板 4， 所述底板 2包括基部 22及连接于基部 22—侧的安装部 24, 所述基部 22的两端分别设有阶梯结构 222， 所述阶梯结构互相配合拟 合圓弧曲率， 以用于适应安装弧形导光板 40 (见图 5 ) 于其内侧， 所述安 装部 24的外表面呈弧形， 以用于安装电路板 240 (见图 6 ) 。
所述基部 22的外表面 224设有相互平行的一对第一加强筋 226, 其与 安装部 24 平行， 所述基部 22 的外表面还设有两相互平行的第二加强筋 228, 所述第二加强筋 228位于基部 22的中间位置且分别垂直连接于所述 两第一加强筋 226之间。 第一加强筋 226与第二加强筋 228的组合设置能 够有效提高背板的强度。
具体地， 所述阶梯结构 222具有二级台阶， 相应地， 侧板 4与基部 22 共同形成三级台阶。 所述背板可通过冲压方式制成， 其结构简单， 不需要对大块钣金进行 弯曲， 同时也避免了现有的钢支架的使用， 降低了生产成本， 且弧形安装 部 24有利于安装电路板 240及放置 COF。
请参阅图 5， 本发明还提供一种背光模组， 包括： 背板 20、 设于背板 20内的导光板 40及设于背板 20内的背光源 60。
请参阅图 3及图 4， 所述背板 20包括底板 2及连接底板 2的数个侧板 4， 所述底板 2包括基部 22及连接于基部 22—侧的安装部 24， 所述基部 22 的两端分别设有阶梯结构 222， 所述阶梯结构互相配合拟合圓弧曲率， 以适应安装弧形导光板于其内侧， 所述安装部 24 的外表面呈弧形， 以用 于安装电路板 240 (见图 6 ) 。
所述基部 22的外表面 224设有相互平行的一对第一加强筋 226, 其与 安装部 24 平行， 所述基部 22 的外表面还设有两相互平行的第二加强筋 228, 所述第二加强筋 228位于基部 22的中间位置且分别垂直连接于所述 两第一加强筋 226之间。 第一加强筋 226与第二加强筋 228组合设置能够 有效提高背板的强度， 以更好的支撑导光板等光学元件。
具体地， 所述阶梯结构 222具有二级台阶， 相应地， 侧板 4与基部 22 共同形成三级台阶。
值得一提的是， 所述导光板 40 呈弧形设置， 其两端分别支撑安装于 所述阶梯结构 222上， 该导光板 40具有至少一个入光面 420， 所述背光源 60对应所述入光面 420设于所述侧板 4上， 所述背光源 60发出光线， 进 入导光板 40， 经由导光板 40转换成面光源。
请参阅图 6， 本发明还提供一种液晶显示装置， 包括： 背光模组 200、 设于背光模组 200上的胶框 400、 设于胶框 400上的液晶显示面板 600、 设于液晶显示面板 600上的前框 800及安装于背光模组 200上且电 性连接于液晶显示面板 600的电路板 240。
前面参照图 3-5对背光模组的详细描述适用于此对背光模组 200的描 述， 在此不做重复描述。
综上所述， 本发明提供的背板、 用该背板的背光模组及液晶显示装 置， 通过在背板的底板上设置弧形的安装部， 方便安装电路板； 通过釆用 具有阶梯结构的背板， 有效支撑导光板， 并实现与液晶显示面板的曲率的 配合， 提高背光模组的品质； 同时， 通过在背板的外表面上设置加强筋， 有效增加背板的强度， 能够更好的支撑导光板等光学元件， 使得背板结构 简单、 易制作， 简化了组装工艺， 降低了生产成本。
以上所述， 对于本领域的普通技术人员来说， 可以根据本发明的技术 方案和技术构思作出其他各种相应的改变和变形， 而所有这些改变和变形 都应属于本发明权利要求的保护范围。

Claims

权 利 要 求
1、 一种背板， 包括： 底板及连接底板的数个侧板， 所述底板包括基 部及连接于基部一侧的安装部， 所述基部的两端分别设有阶梯结构， 以用 于适应安装弧形导光板于其内侧， 该安装部的外表面呈弧形， 用于安装电 路板。
2、 如权利要求 1 所述的背板， 其中， 所述基部的外表面上设有相互 平行的一对第一加强筋， 其与安装部平行。
3、 如权利要求 2 所述的背板， 其中， 所述基部的外表面还设有两相 互平行的第二加强筋， 所述第二加强筋位于基部的中间位置且分别垂直连 接于所述两第一加强筋之间。
4、 如权利要求 1所述的背板， 其中， 所述阶梯结构具有二级台阶。
5、 一种背光模组， 包括： 背板、 设于背板内的导光板及设于背板内 的背光源， 所述背板包括底板及连接底板的数个侧板， 所述底板包括基部 及连接于基部一侧的安装部， 所述基部的两端分别设有阶梯结构以适应安 装弧形导光板于其内侧， 该安装部的外表面呈弧形， 以安装电路板。
6、 如权利要求 5 所述的背光模组， 其中， 所述导光板呈弧形设置， 其两端分别支撑于所述阶梯结构上， 该导光板具有至少一个入光面， 所述 背光源对应所述入光面设于所述侧板上。
7、 如权利要求 5 所述的背光模组， 其中， 所述基部的外表面设有相 互平行的一对第一加强筋， 其与安装部平行； 所述基部的外表面还设有两 相互平行的第二加强筋， 所述第二加强筋位于基部的中间位置且分别垂直 连接于所述两第一加强筋之间； 所述阶梯结构具有二级台阶。
8、 一种液晶显示装置， 包括： 背光模组、 设于背光模组上的胶框、 设于胶框上的液晶显示面板、 设于液晶显示面板上的前框及安装于背光模 组上且电性连接于液晶显示面板的电路板， 所述背光模组包括背板、 设于 背板内的导光板及设于背板内的背光源， 所述背板包括底板及连接底板的 数个侧板， 所述底板包括基部及连接于基部一侧的安装部， 所述基部的两 端分别设有阶梯结构以适应安装弧形导光板于其内侧， 该安装部的外表面 呈弧形， 以安装电路板。
9、 如权利要求 8 所述的液晶显示装置， 其中， 所述导光板呈弧形设 置， 其两端分别支撑于所述阶梯结构上， 该导光板具有至少一个入光面， 所述背光源对应所述入光面设于所述侧板上。
10、 如权利要求 8所述的液晶显示装置， 其中， 所述基部的外表面设 有相互平行的一对第一加强筋， 其与安装部平行； 所述基部的外表面还设 有两相互平行的第二加强筋， 所述第二加强筋位于基部的中间位置且分别 垂直连接于所述两第一加强筋之间； 所述阶梯结构具有二级台阶。
PCT/CN2014/074008 2014-03-10 2014-03-25 背板、用该背板的背光模组及液晶显示装置 Ceased WO2015135229A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/356,381 US9366804B2 (en) 2014-03-10 2014-03-25 Backplane and backlight module and liquid crystal display device using same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410086879.6A CN103807814B (zh) 2014-03-10 2014-03-10 背板、用该背板的背光模组及液晶显示装置
CN201410086879.6 2014-03-10

Publications (1)

Publication Number Publication Date
WO2015135229A1 true WO2015135229A1 (zh) 2015-09-17

Family

ID=50704965

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/074008 Ceased WO2015135229A1 (zh) 2014-03-10 2014-03-25 背板、用该背板的背光模组及液晶显示装置

Country Status (3)

Country Link
US (1) US9366804B2 (zh)
CN (1) CN103807814B (zh)
WO (1) WO2015135229A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170086169A (ko) * 2016-01-15 2017-07-26 삼성디스플레이 주식회사 백라이트 유닛, 표시 장치 및 표시 장치의 제조 방법

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102205419B1 (ko) * 2014-02-04 2021-01-21 삼성디스플레이 주식회사 커브드 백라이트 어셈블리 및 이를 갖는 커브드 표시장치
KR102243856B1 (ko) * 2014-04-07 2021-04-26 삼성디스플레이 주식회사 표시 장치
CN104090425A (zh) * 2014-07-02 2014-10-08 深圳市华星光电技术有限公司 液晶显示装置及其曲面背光组件
CN106663395B (zh) * 2014-08-05 2019-11-15 索尼公司 显示装置
CN104297999B (zh) * 2014-09-26 2017-07-04 京东方科技集团股份有限公司 液晶模组和曲面显示装置
TWI522681B (zh) * 2015-02-02 2016-02-21 瑞儀光電股份有限公司 背板及其製作方法與背光模組
CN104613384B (zh) * 2015-02-17 2017-09-01 深圳市华星光电技术有限公司 背光模组
CN105223716A (zh) * 2015-09-24 2016-01-06 深圳市华星光电技术有限公司 液晶显示装置的背板以及液晶显示装置
CN205080340U (zh) * 2015-11-06 2016-03-09 乐视致新电子科技（天津）有限公司 背光模组及显示设备
CN105700214B (zh) * 2016-04-26 2019-03-01 深圳市华星光电技术有限公司 背板结构及曲面显示器
CN112349208B (zh) * 2020-11-12 2022-10-25 京东方科技集团股份有限公司 一种折弯辅助机构及显示装置
CN113763819B (zh) * 2021-09-14 2023-05-16 京东方科技集团股份有限公司 支撑结构及其制备方法、显示装置
CN116305366B (zh) * 2023-05-23 2023-09-15 四川启睿克科技有限公司 液晶电视散热仿真模组的建模方法及简化模型

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004069627A (ja) * 2002-08-09 2004-03-04 Seiko Instruments Inc 液晶表示装置及びこれを用いた電子時計
CN101344651A (zh) * 2007-07-10 2009-01-14 株式会社日立显示器 显示装置
JP2010140831A (ja) * 2008-12-15 2010-06-24 Sharp Corp 面状照明装置および表示装置
CN101915999A (zh) * 2010-07-12 2010-12-15 深圳市华星光电技术有限公司 非平面显示模块及其背框支撑架构造
CN201757332U (zh) * 2010-07-14 2011-03-09 创维液晶器件(深圳)有限公司 一种适用于液晶电视的无后背板式背光模组
CN102759821A (zh) * 2011-04-26 2012-10-31 松下液晶显示器株式会社 液晶显示装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010002487A (ja) * 2008-06-18 2010-01-07 Hitachi Displays Ltd 液晶表示装置
WO2010016317A1 (ja) * 2008-08-07 2010-02-11 シャープ株式会社 表示装置
CN202153541U (zh) * 2011-08-18 2012-02-29 京东方科技集团股份有限公司 一种柔性显示器
CN102384442A (zh) * 2011-10-27 2012-03-21 深圳市华星光电技术有限公司 一种背板、背光模组及液晶显示装置
CN102410508B (zh) * 2011-11-18 2013-12-04 深圳市华星光电技术有限公司 显示装置的拼接式背板结构
CN102392997A (zh) * 2011-11-21 2012-03-28 深圳市华星光电技术有限公司 一种背板、背光模组及液晶显示装置
KR101319543B1 (ko) * 2012-05-17 2013-10-21 삼성디스플레이 주식회사 곡면 디스플레이 장치 및 이를 포함하는 멀티 디스플레이 장치
US9323084B2 (en) * 2012-11-08 2016-04-26 Lg Display Co., Ltd. Curved liquid crystal display device
CN102955220B (zh) * 2012-12-05 2015-05-13 河海大学常州校区 太阳能聚光碟片

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004069627A (ja) * 2002-08-09 2004-03-04 Seiko Instruments Inc 液晶表示装置及びこれを用いた電子時計
CN101344651A (zh) * 2007-07-10 2009-01-14 株式会社日立显示器 显示装置
JP2010140831A (ja) * 2008-12-15 2010-06-24 Sharp Corp 面状照明装置および表示装置
CN101915999A (zh) * 2010-07-12 2010-12-15 深圳市华星光电技术有限公司 非平面显示模块及其背框支撑架构造
CN201757332U (zh) * 2010-07-14 2011-03-09 创维液晶器件(深圳)有限公司 一种适用于液晶电视的无后背板式背光模组
CN102759821A (zh) * 2011-04-26 2012-10-31 松下液晶显示器株式会社 液晶显示装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170086169A (ko) * 2016-01-15 2017-07-26 삼성디스플레이 주식회사 백라이트 유닛, 표시 장치 및 표시 장치의 제조 방법
KR102469764B1 (ko) * 2016-01-15 2022-11-23 삼성디스플레이 주식회사 백라이트 유닛, 표시 장치 및 표시 장치의 제조 방법

Also Published As

Publication number Publication date
CN103807814A (zh) 2014-05-21
CN103807814B (zh) 2016-04-13
US20160109647A1 (en) 2016-04-21
US9366804B2 (en) 2016-06-14

Similar Documents

Publication Publication Date Title
WO2015135229A1 (zh) 背板、用该背板的背光模组及液晶显示装置
KR101807442B1 (ko) 백라이트 모듈 및 상기 백라이트 모듈을 이용한 액정 디스플레이 장치
US8531624B2 (en) LCD device
KR101966739B1 (ko) 곡면 디스플레이 장치
KR101777535B1 (ko) 광학필름 조립체의 설치구조
US9766487B2 (en) Curved liquid crystal display device
CN103838036B (zh) 曲面液晶显示装置
WO2015135228A1 (zh) 背光模组及用该背光模组的液晶显示装置
JP5173640B2 (ja) バックライトユニット及びその組立方法
WO2015085621A1 (zh) 用于曲面液晶显示装置的背光模组以及曲面液晶显示装置
CN105842919A (zh) 一种背光模组、显示模组及显示设备
WO2015139341A1 (zh) 曲面液晶显示装置
WO2014146368A1 (zh) 液晶模组结构
US9274362B2 (en) Curved liquid crystal display device
WO2015161532A1 (zh) 曲面双面液晶显示器
WO2015135240A1 (zh) 背光模组及用该背光模组的液晶显示装置
WO2015135239A1 (zh) 背光模组
US7956955B2 (en) Liquid crystal display module
CN101551534B (zh) 液晶显示装置
WO2013177805A1 (zh) 背光模组
WO2014047979A1 (zh) 背光模组
US9323086B2 (en) Curved liquid crystal display device
CN112068352A (zh) 背光模组及液晶模组
CN203718555U (zh) 一种背光模组和液晶显示装置
KR100786472B1 (ko) 평판표시장치 및 그 제조방법

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 14356381

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14885514

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14885514

Country of ref document: EP

Kind code of ref document: A1