WO2015051556A1 - 背光模组及液晶显示器 - Google Patents

背光模组及液晶显示器 Download PDF

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Publication number
WO2015051556A1
WO2015051556A1 PCT/CN2013/085232 CN2013085232W WO2015051556A1 WO 2015051556 A1 WO2015051556 A1 WO 2015051556A1 CN 2013085232 W CN2013085232 W CN 2013085232W WO 2015051556 A1 WO2015051556 A1 WO 2015051556A1
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WO
WIPO (PCT)
Prior art keywords
back frame
bracket
hole
side wall
bottom plate
Prior art date
Application number
PCT/CN2013/085232
Other languages
English (en)
French (fr)
Inventor
李全
Original Assignee
深圳市华星光电技术有限公司
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 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to RU2016113121A priority Critical patent/RU2633802C2/ru
Priority to KR1020167000797A priority patent/KR101778899B1/ko
Priority to JP2016520034A priority patent/JP6226442B2/ja
Priority to GB1600607.4A priority patent/GB2535012B/en
Priority to US14/116,130 priority patent/US9239482B2/en
Publication of WO2015051556A1 publication Critical patent/WO2015051556A1/zh

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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
    • G02F1/133308—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
    • 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
    • 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
    • G02F1/133325—Assembling processes
    • 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
    • G02F2201/46—Fixing elements

Definitions

  • the present invention relates to the field of liquid crystal display; and more particularly, to a backlight module and a liquid crystal display.
  • LCDs liquid crystal displays
  • advantages such as thin body, low power consumption, low radiation, soft picture and no eye injury.
  • the introduction of liquid crystal displays with a resolution of 4K currently brings unprecedented high-definition visual enjoyment to consumers, and this high-definition liquid crystal display is also receiving more and more welcome. Therefore, in order to introduce higher resolution liquid crystal displays, some manufacturers are working on liquid crystal displays with resolutions up to 8K.
  • an object of the present invention is to provide a backlight module, wherein the backlight module includes a back frame and a bracket, wherein the back frame is disposed on the bracket And a fixed connection with the bracket, and a receiving cavity is formed between the back frame and the bracket, the receiving cavity is for accommodating a flexible circuit board and a printed circuit board connected to the flexible circuit board. Further, the receiving cavity is formed between a sidewall of the bracket and a sidewall of the back frame. Further, a portion of the bottom plate of the bracket adjacent to the side wall of the back frame protrudes in a direction away from the bottom plate of the back frame to form the receiving cavity.
  • a portion of the bottom plate of the bracket that is away from the side wall of the back frame is attached to the bottom plate of the back frame, and a portion of the bottom plate of the bracket that is away from the side wall of the back frame is provided with a second portion.
  • a through hole, a fixing hole is formed on a bottom plate of the back frame corresponding to the second through hole, wherein the fixing member is in turn Fixing the bottom plate of the bracket and the bottom plate of the back frame through the second through hole and the fixing hole
  • a first through hole is further disposed on a portion of the bottom plate of the bracket away from the side wall of the back frame, and a connecting hole is disposed on a bottom surface of the back frame corresponding to the first through hole.
  • the second through hole communicates with the first through hole, the direction of the second through hole to the first through hole is perpendicular to a plane where the sidewall of the back frame is located, and the first The through hole is closer to the side wall of the back frame, and the movable connecting member sequentially connects the bottom plate of the bracket to the bottom plate of the back frame through the first through hole and the connecting hole, and the bracket is at the slave The side walls of the back frame move in the direction of the side walls of the bracket.
  • the movable connecting member is a stepped screw, wherein a middle portion of the stepped screw is not provided with a thread, and a height of a middle portion of the stepped screw is greater than a thickness of a bottom plate of the bracket.
  • the backlight module further includes a plastic frame, wherein a sidewall of the plastic frame is disposed in the receiving cavity and is fixedly connected to a sidewall of the back frame, and a sidewall of the plastic frame The end portion extends along a direction from a side wall of the back frame to a side wall of the bracket to form a support table for supporting the flexible circuit board and printing connected to the flexible circuit board Circuit board.
  • Another object of the present invention is to provide a liquid crystal display comprising the above backlight module, a liquid crystal panel disposed on the backlight module, and an outer frame, wherein a frame edge of the outer frame is The liquid crystal panel is pressed on the backlight module, and the sidewall of the outer frame is fixedly connected to the sidewall of the bracket in the backlight module, thereby fixing the liquid crystal panel and the backlight module. .
  • the side wall of the outer frame and the side wall of the bracket are fixedly connected by screws.
  • a hook is disposed on a side wall of the bracket, and a card hole is disposed on a sidewall of the outer frame corresponding to the hook, and the hook is correspondingly fixed to the card hole.
  • the side wall of the outer frame is fixedly connected to the side wall of the bracket.
  • FIG. 1 is a schematic structural view of a liquid crystal display device according to Embodiment 1 of the present invention.
  • 2 is a schematic structural view of a bottom plate of a stent according to Embodiment 1 of the present invention.
  • 3 is a schematic structural view of a liquid crystal display device according to Embodiment 2 of the present invention.
  • 4 is a schematic structural view of a liquid crystal display device according to Embodiment 3 of the present invention.
  • FIG. 1 is a schematic structural view of a liquid crystal display device according to Embodiment 1 of the present invention. Referring to FIG.
  • a liquid crystal display provided by Embodiment 1 of the present invention mainly includes a liquid crystal panel 10 and a backlight module 20 , wherein the liquid crystal panel 10 is disposed on the backlight module 20 or the backlight module 20 is opposite to the liquid crystal panel 10 .
  • the backlight module 20 provides a display light source to the liquid crystal panel 10, so that the liquid crystal panel 10 displays images by the light provided by the backlight module 20.
  • the specific fixing manner of the liquid crystal panel 10 and the backlight module 20 will be below the backlight mode.
  • the group 20 will be explained together in the detailed description.
  • the liquid crystal panel 10 may be a liquid crystal panel in the prior art. For details, please refer to the relevant knowledge of the related art of the liquid crystal panel, and details are not described herein again.
  • a backlight module 20 includes a light guide plate 21, a light source unit 22, a back frame 24, a reflection plate 25, an optical film 26, and a bezel 27.
  • the light guide plate 21 is disposed in the back frame 24, and includes a light incident surface 211, a light exit surface 212 connected to the light incident surface 211, and a bottom surface 213 opposite to the light exit surface 212.
  • the light source unit 22 is adjacent to the light incident surface.
  • the 211 is disposed such that the light emitted from the light source unit 22 enters the light guide plate 21 through the light incident surface 211, and is uniformly diffused in the light guide plate 21 to be emitted from the light exit surface 212;
  • the reflective plate 25 is disposed on the bottom surface 213 and the back frame 24.
  • the optical film 26 is disposed on the light exit surface 212 for improving the uniformity of the light emitted from the light exit surface 212, brightness, The chromaticity or the like;
  • the plastic frame 27 is fixedly coupled to the back frame 24, and the optical film 26, the light guide plate 21, and the reflection plate 25 are fixed in the back frame 24.
  • the liquid crystal display of the present invention since the liquid crystal display of the present invention has a high definition display (such as a resolution of up to 4K, or even up to 8K), it drives a flexible circuit board (for example, COF, Chip On Film) 30 and printing of the liquid crystal panel 10 display.
  • the number of circuit boards (PCB boards) 40 may be multiplied.
  • the backlight module 20 according to Embodiment 1 of the present invention
  • the bracket 23 is further included, and the back frame 24 is disposed on the bracket 23 and fixedly connected to the bracket 23, and a receiving cavity 50 is formed between the side wall 241 of the back frame 24 and the side wall 231 of the bracket 23, and the receiving cavity 50 is formed.
  • the side wall 271 of the plastic frame 27 is disposed in the accommodating cavity 50 and fixedly connected to the side wall 241 of the back frame 24, and the glue
  • the end of the side wall 271 of the frame 27 extends along the direction from the side wall 241 of the back frame 24 to the side wall 231 of the bracket 23 (ie, the X direction in FIG. 1) to form a support table 272 for the support table 272.
  • the flexible circuit board 30 and the printed circuit board 40 connected to the flexible circuit board 30 are supported.
  • a second through hole 233 may be disposed on the bottom plate 232 of the bracket 23, and fixed on the bottom plate 242 of the back frame 24 at a position corresponding to the second through hole 233.
  • the hole 243 can be fixedly connected to the bottom plate 242 of the back frame 24 by the fixing member 80 through the second through hole 233 and the fixing hole 243.
  • the fixing member 80 is preferably a screw, but in the present invention, it is not limited thereto, and may be, for example, a rivet, a bolt fitting nut or the like. Referring to FIG. 1 and FIG.
  • the first through hole 234 is disposed on the bottom plate 232 of the bottom plate 232, and the connecting hole 244 is disposed at a position corresponding to the first through hole 234 on the bottom plate 242 of the back frame 24; wherein the second through hole 233 and the first through hole 234 pass through And the direction of the second through hole 233 to the first through hole 233 (ie, the X direction in FIG. 1) is perpendicular to the plane of the side wall 241 of the back frame 24, and the first through hole 234 is more than the second through hole 233.
  • the bottom plate 232 and the back frame of the bracket 23 can be sequentially passed through the first through hole 234 and the connecting hole 244 by using the movable connecting member 60.
  • the bottom plate 242 of the 24 is movably connected such that the bracket 23 is from the side wall 241 of the back frame 24
  • the side wall 231 of the bracket 23 moves in the direction (i.e., the X direction in Fig. 1).
  • the movable connecting member 60 can be a stepped screw, wherein the front portion 61 of the stepped screw is provided with a thread, the middle portion 62 is not provided with a thread, and the middle portion 61 of the stepped screw has a height greater than that of the bracket.
  • the front portion 61 is screwed to the connecting hole 244 by a thread, and the area of the head portion 63 is larger than the area of the first through hole 234, and the head portion 63 is
  • the cooperation with the front portion 61 can connect the bottom plate 232 of the bracket 23 with the bottom plate 242 of the back frame 24, and the height of the middle portion 61 is greater than the thickness of the bottom plate 232 of the bracket 23, so that the bottom plate 232 of the bracket 23 and the bottom plate 242 of the back frame 24 are not Being fastened, the bracket 23 can be moved in the X direction relative to the back frame 24, thereby allowing the bracket 23 to move rightward in the X direction relative to the back frame 24 to give space for the printed circuit board 40 to follow the flexible circuit board.
  • the liquid crystal display further includes an outer frame 70 , wherein the frame edge 71 of the outer frame 70 presses the liquid crystal panel 10 on the backlight module 20 , and
  • the side wall 72 of the outer frame 70 and the side wall 231 of the bracket 23 in the backlight module 20 can be fixedly connected, for example, by a screw, and the liquid crystal panel 10 and the backlight module 20 are fixedly combined to form the liquid crystal display.
  • Embodiment 2 is a schematic structural view of a liquid crystal display device according to Embodiment 2 of the present invention. Referring to FIG.
  • the liquid crystal display further includes an outer frame 70, wherein the frame edge 71 of the outer frame 70 will The liquid crystal panel 10 is pressed on the backlight module 20, and the side wall 72 of the outer frame 70 is provided with a card hole 721.
  • the side wall 231 of the bracket 23 is provided with a hook 2311 at a position corresponding to the card hole 721, and the hook 2311 is
  • the card hole 721 is fixedly coupled to the side wall 72 of the outer frame 70 and the side wall 231 of the bracket 23, and the liquid crystal panel 10 and the backlight module 20 are fixedly combined to form the liquid crystal display.
  • Example 3 4 is a schematic structural view of a liquid crystal display device according to Embodiment 3 of the present invention.
  • Embodiment 3 differs from Embodiment 1 in that: in order to accommodate the multiplied flexible circuit board 30 and the printed circuit board 40 connected to the flexible circuit board 30, the backlight according to Embodiment 3 of the present invention
  • the module 20 further includes a bracket 23 such that the back frame 24 is disposed above the bracket 23 and fixedly coupled to the bracket 23, and a portion of the bottom plate 232 of the bracket 23 adjacent to the side wall 241 of the back frame 24 is along a portion away from the back frame 24.
  • FIG. 5 is a schematic structural view of a liquid crystal display device according to Embodiment 4 of the present invention. Referring to FIG.
  • Embodiment 4 differs from Embodiment 1 in that: in order to accommodate the multiplied flexible circuit board 30 and the printed circuit board 40 connected to the flexible circuit board 30, the backlight according to Embodiment 3 of the present invention
  • the module 20 further includes a bracket 23 such that the back frame 24 is disposed above the bracket 23 and fixedly coupled to the bracket 23, and a portion of the bottom plate 232 of the bracket 23 adjacent to the side wall 241 of the back frame 24 is along a portion away from the back frame 24.
  • the direction of the bottom plate 242 (the direction opposite to the y direction in the figure) is convex to form a receiving cavity 50 which can be used to accommodate the multiplied flexible circuit board 30 and the printed circuit board 40.
  • the liquid crystal display further includes an outer frame 70, wherein the frame edge 71 of the outer frame 70 presses the liquid crystal panel 10 on the backlight module 20, and the side of the outer frame 70
  • the wall 72 is provided with a hole 721.
  • the side wall 231 of the bracket 23 is provided with a hook 2311 at a position corresponding to the hole 721.
  • the hook 2311 is engaged with the hole 721 to be fixedly connected to the side wall of the outer frame 70.
  • 72 is fixedly connected to the side wall 231 of the bracket 23, and the liquid crystal panel 10 and the backlight module 20 are fixedly combined to form the liquid crystal display.

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

Abstract

一种背光模组（20）及液晶显示器。背光模组（20）包括背框（24）和支架（23），背框（24）设置在支架（23）之上并与支架（23）固定连接，且背框（24）与支架（23）之间形成一容留腔（50），容留腔（50）用于容置柔性电路板（30）以及与柔性电路板（30）连接的印刷电路板（40）。通过在背框（24）外侧增加支架（23），使得背框（24）与支架（23）之间形成容留腔（50）来容置成倍增加的柔性电路板（30）和印刷电路板（40），在实现液晶显示器高清显示的同时提高液晶显示器的机械可靠性。

Description

背光模组及液晶显示器 技术领域
本发明涉及液晶显示领域；更具体地讲，涉及一种背光模组及液晶显示器。 背景技术 液晶显示器（Liquid Crystal Display, LCD) 由于具有机身薄、 省电、 低辐 射、 画面柔和不伤眼等众多优点而得到越来越广泛的应用。 随着人们不断追求 高清晰的画质的需求， 目前分辨率达到 4K的液晶显示器的推出给消费者带来 空前的高画质视觉享受， 并且这种高画质的液晶显示器也越来越受到欢迎。 因 此，为了推出更高分辨率的液晶显示器，部分厂商正在着手进行分辨率高达 8K 的液晶显示器的研究。
随着技术的不断发展， 将会有更高分辨率的液晶显示器产生。 随着分辨率 的成倍提高， 作为驱动液晶显示器的液晶面板显示的柔性电路板的数目也会成 倍增加，以至于柔性电路板会密布于液晶面板的源极，造成机构设计受到限制， 例如螺钉的分布设置等。
发明内容 为了解决上述现有技术存在的问题， 本发明的目的在于提供一种背光模 组， 其中， 所述背光模组包括背框和支架， 其中， 所述背框设置在所述支架之 上并与所述支架固定连接， 且所述背框与所述支架之间形成一容留腔， 所述容 留腔用于容置柔性电路板以及与所述柔性电路板连接的印刷电路板。 进一步地， 所述支架的侧壁与所述背框的侧壁之间形成所述容留腔。 进一步地，所述支架的底板的靠近所述背框的侧壁的部分沿着远离所述背 框的底板的方向凸起而形成所述容留腔。 进一步地，所述支架的底板的远离所述背框的侧壁的部分贴合所述背框的 底板， 且所述支架的底板的远离所述背框的侧壁的部分上设有第二贯穿孔， 所 述背框的底板上与所述第二贯穿孔相应的位置设有固定孔， 其中， 固定件依次 通过所述第二贯穿孔、 固定孔后将所述支架的底板与所述背框的底板固定连
进一步地，所述支架的底板的远离所述背框的侧壁的部分上还设有第一贯 穿孔， 所述背框的底板上与所述第一贯穿孔相应的位置设有连接孔， 其中， 所 述第二贯穿孔与所述第一贯穿孔相通， 所述第二贯穿孔到所述第一贯穿孔的方 向垂直于所述背框的侧壁所在的平面， 且所述第一贯穿孔更靠近所述背框的侧 壁， 活动连接件依次通过所述第一贯穿孔、 连接孔后将所述支架的底板与所述 背框的底板连接， 且使所述支架在从所述背框的侧壁到所述支架的侧壁的方向 上移动。 进一步地， 所述活动连接件为台阶式螺钉， 其中， 所述台阶式螺钉的中部 不设螺紋， 且所述台阶式螺钉的中部的高度大于所述支架的底板的厚度。 进一步地， 所述背光模组还包括胶框， 其中， 所述胶框的侧壁设在所述容 留腔中并与所述背框的侧壁固定连接， 且所述胶框的侧壁的端部沿着从所述背 框的侧壁到所述支架的侧壁的方向沿伸而形成支撑台， 所述支撑台用于支撑所 述柔性电路板以及与所述柔性电路板连接的印刷电路板。 本发明的另一目的还在于提供一种液晶显示器， 其包括上述的背光模组、 设置在所述背光模组之上的液晶面板以及外框， 其中， 所述外框的框边将所述 液晶面板按压在所述背光模组之上， 且所述外框的侧壁与所述背光模组中的所 述支架的侧壁固定连接， 进而将所述液晶面板与所述背光模组固定。 进一步地， 所述外框的侧壁与所述支架的侧壁通过螺钉锁附固定连接。 进一步地， 所述支架的侧壁上设有卡钩， 所述外框的侧壁上与所述卡钩对 应的位置设有卡孔， 所述卡钩与所述卡孔对应卡合固定， 以使所述外框的侧壁 与所述支架的侧壁固定连接。
本发明通过在背框外侧增加支架， 使得背框与支架之间形成容留腔来容置 成倍增加的柔性电路板和印刷电路板， 在实现了液晶显示器高清显示的同时提 高了液晶显示器的机械可靠性。 附图说明 图 1是根据本发明的实施例 1的液晶显示器的结构示意图。 图 2是根据本发明的实施例 1的支架的底板的结构示意图。 图 3是根据本发明的实施例 2的液晶显示器的结构示意图。 图 4是根据本发明的实施例 3的液晶显示器的结构示意图。
图 5是根据本发明的实施例 4的液晶显示器的结构示意图。 具体实施方式 现在对本发明的实施例进行详细的描述， 其示例表示在附图中， 其中， 相 同的标号始终表示相同部件。下面通过参照附图对实施例进行描述以解释本发 明。 在附图中， 为了清晰起见， 可以夸大层和区域的厚度。 在下面的描述中， 为了避免公知结构和 /或功能的不必要的详细描述所导致的本发明构思的混淆， 可省略公知结构和 /或功能的不必要的详细描述。 实施例 1 图 1是根据本发明的实施例 1的液晶显示器的结构示意图。 参照图 1，本发明的实施例 1提供的液晶显示器主要包括液晶面板 10和背 光模组 20， 其中， 液晶面板 10设置在背光模组 20之上或者说背光模组 20与 液晶面板 10相对设置， 背光模组 20是向液晶面板 10提供显示光源， 使得液 晶面板 10借由背光模组 20提供的光而显示影像， 而液晶面板 10与背光模组 20的具体固定方式将在下面对背光模组 20进行详细的描述时一起进行说明。 由于在本发明中， 液晶面板 10可是采用现有技术中的液晶面板， 具体请査阅 关于液晶面板的现有技术的相关知识内容， 在此不再赘述。 下面将对本实施例的背光模组 20进行详细的说明。 继续参照图 1， 根据本发明的实施例 1的背光模组 20包括导光板 21、 光 源单元 22、 背框 24、 反射板 25、 光学膜片 26以及胶框 27。 具体而言， 导光 板 21设置在背框 24之中，其包括入光面 211、与入光面 211连接的出光面 212 以及与出光面 212相对的底面 213; 光源单元 22邻近于入光面 211设置， 以使 光源单元 22发出的光通过入光面 211进入导光板 21中， 并在导光板 21中进 行均匀扩散后从出光面 212出射； 反射板 25设置在底面 213与背框 24之间， 用于将从底面 213射出的光反射回导光板 21， 以提高光的利用率； 光学膜片 26设置在出光面 212之上， 用于改善从出光面 212发出的光的均匀度、 亮度、 色度等； 胶框 27与背框 24固定结合， 进而将光学膜片 26、 导光板 21和反射 板 25固定在背框 24中。 诚如背景技术中的描述， 由于本发明的液晶显示器具备高清显示（诸如分 辨率高达 4K, 甚至高达 8K) , 其驱动液晶面板 10显示的柔性电路板 （例如 COF， Chip On Film) 30和印刷电路板 （PCB板） 40的数目会成倍增加， 为了 容置成倍增加的柔性电路板 30以及与柔性电路板 30连接的印刷电路板 40，根 据本发明的实施例 1的背光模组 20还包括支架 23，这样将背框 24设置在支架 23之上并与支架 23固定连接， 且背框 24的侧壁 241与支架 23的侧壁 231之 间形成一容留腔 50，该容留腔 50则可用于容置成倍增加的柔性电路板 30和印 刷电路板 40。 为了支撑容置在容留腔 50中的柔性电路板 30和印刷电路板 40， 优选的， 胶框 27的侧壁 271设在容留腔 50中并与背框 24的侧壁 241固定连接， 且胶 框 27的侧壁 271的端部沿着从背框 24的侧壁 241到支架 23的侧壁 231的方 向 （即图 1中的 X方向） 沿伸而形成支撑台 272， 该支撑台 272用于支撑柔性 电路板 30以及与柔性电路板 30连接的印刷电路板 40。 为了实现支架 23与背框 24的固定， 优选地， 可在支架 23的底板 232上 设置第二贯穿孔 233，并在背框 24的底板 242上与第二贯穿孔 233相对应的位 置设置固定孔 243， 在第二贯穿孔 233与固定孔 243对位后， 可使用固定件 80 依次通过第二贯穿孔 233和固定孔 243后将支架 23的底板 232与背框 24的底 板 242固定连接。 这里， 为了在组装拆卸过程中方便， 固定件 80优选为螺钉， 但在本发明中， 并不限于此， 例如也可为铆钉、 螺栓配合螺母等。 一并参照图 1和图 2， 为了使支架 23相对于背框 24实现相对移动， 进而 使柔性电路板 30和印刷电路板 40置于容留腔 50的过程操作简易化， 优选地， 可在支架 23的底板 232上设置第一贯穿孔 234， 并在背框 24的底板 242上与 第一贯穿孔 234相对应的位置设置连接孔 244; 其中， 第二贯穿孔 233与第一 贯穿孔 234贯通， 并且第二贯穿孔 233到第一贯穿孔 233的方向 （即图 1中的 X方向）垂直于背框 24的侧壁 241所在的平面，而且第一贯穿孔 234比第二贯 穿孔 233更靠近背框 24的侧壁 241 ; 在第一贯穿孔 234与连接孔 244对位后， 可使用活动连接件 60依次通过第一贯穿孔 234、 连接孔 244后将支架 23的底 板 232与背框 24的底板 242活动连接， 使支架 23在从背框 24的侧壁 241到 支架 23的侧壁 231的方向上 （即图 1中的 X方向） 移动。 在本实施例中， 优选的， 活动连接件 60可为台阶式螺钉， 其中， 该台阶 式螺钉的前部 61设置螺紋， 中部 62不设螺紋， 且该台阶式螺钉的中部 61的 高度大于支架 23的底板 232的厚度。当该台阶式螺钉依次通过第一贯穿孔 234、 连接孔 244后， 其前部 61通过螺紋与连接孔 244螺紋连接， 其头部 63的面积 大于第一贯穿孔 234的面积， 则头部 63与前部 61的配合可将支架 23的底板 232与背框 24的底板 242连接，而中部 61的高度大于支架 23的底板 232的厚 度，使得支架 23的底板 232与背框 24的底板 242未被紧固， 则可使得支架 23 可相对于背框 24在 X方向上移动， 进而使得支架 23相对于背框 24在 X方向 上右移后给出空间便于印刷电路板 40沿着柔性电路板 30绕折。 参照图 1， 为了实现液晶面板 10与背光模组 20的固定， 所述液晶显示器 还包括外框 70， 其中， 外框 70的框边 71将液晶面板 10按压在背光模组 20 之上， 且外框 70的侧壁 72与背光模组 20中的支架 23的侧壁 231可例如通过 螺钉锁附固定连接， 进而将液晶面板 10与背光模组 20固定组合形成所述液晶 显示器。 本实施例通过在背框外侧增加支架， 使得背框与支架之间形成容留腔来容 置成倍增加的柔性电路板和印刷电路板， 在实现了液晶显示器高清显示的同时 提高了液晶显示器的机械可靠性。 实施例 2 在本实施例中， 只描述与实施例 1的不同之处， 与实施例 1相同的内容在 此不再赘述。 图 3是根据本发明的实施例 2的液晶显示器的结构示意图。 参照图 3， 实施例 2与实施例 1的不同之处是： 为了实现液晶面板 10与背 光模组 20的固定， 所述液晶显示器还包括外框 70， 其中， 外框 70的框边 71 将液晶面板 10按压在背光模组 20之上， 外框 70的侧壁 72上设有卡孔 721， 支架 23的侧壁 231上与卡孔 721对应的位置设有卡钩 2311，卡钩 2311与卡孔 721对应卡合固定连接，以使外框 70的侧壁 72与支架 23的侧壁 231固定连接， 进而将液晶面板 10与背光模组 20固定组合形成所述液晶显示器。 实施例 3 图 4是根据本发明的实施例 3的液晶显示器的结构示意图。 参照图 4， 实施例 3与实施例 1的不同之处是： 为了容置成倍增加的柔性 电路板 30以及与柔性电路板 30连接的印刷电路板 40， 根据本发明的实施例 3 的背光模组 20还包括支架 23， 这样将背框 24设置在支架 23之上并与支架 23 固定连接， 且支架 23的底板 232的靠近背框 24的侧壁 241的部分沿着远离背 框 24的底板 242的方向 （图中与 y方向相反的方向） 凸起而形成容留腔 50， 该容留腔 50则可用于容置成倍增加的柔性电路板 30和印刷电路板 40。 此外， 由于容留腔 50被形成在背框 24的底板 242与支架 23的底板 232 之间， 为了便于安装， 在本实施例中， 胶框 27的侧壁 271的端部没有形成如 图 1所示的支撑台 272。 实施例 4 图 5是根据本发明的实施例 4的液晶显示器的结构示意图。 参照图 5， 实施例 4与实施例 1的不同之处是： 为了容置成倍增加的柔性 电路板 30以及与柔性电路板 30连接的印刷电路板 40， 根据本发明的实施例 3 的背光模组 20还包括支架 23， 这样将背框 24设置在支架 23之上并与支架 23 固定连接， 且支架 23的底板 232的靠近背框 24的侧壁 241的部分沿着远离背 框 24的底板 242的方向 （图中与 y方向相反的方向） 凸起而形成容留腔 50， 该容留腔 50则可用于容置成倍增加的柔性电路板 30和印刷电路板 40。 此外， 由于容留腔 50被形成在背框 24的底板 242与支架 23的底板 232 之间， 为了便于安装， 在本实施例中， 胶框 27的侧壁 271的端部没有形成如 图 1所示的支撑台 272。 为了实现液晶面板 10与背光模组 20的固定， 所述液晶显示器还包括外框 70， 其中， 外框 70的框边 71将液晶面板 10按压在背光模组 20之上， 外框 70 的侧壁 72上设有卡孔 721， 支架 23的侧壁 231上与卡孔 721对应的位置设有 卡钩 2311， 卡钩 2311与卡孔 721对应卡合固定连接， 以使外框 70的侧壁 72 与支架 23的侧壁 231固定连接， 进而将液晶面板 10与背光模组 20固定组合 形成所述液晶显示器。
尽管已经参照其示例性实施例具体显示和描述了本发明， 但是本领域的技 术人员应该理解， 在不脱离权利要求所限定的本发明的精神和范围的情况下， 可以对其进行形式和细节上的各种改变。

Claims

权利要求书
1、 一种背光模组， 其中， 所述背光模组包括背框和支架， 所述背框设置 在所述支架之上并与所述支架固定连接， 且所述背框与所述支架之间形成一容 留腔， 所述容留腔用于容置柔性电路板以及与所述柔性电路板连接的印刷电路
2、 根据权利要求 1所述的背光模组， 其中， 所述支架的侧壁与所述背框 的侧壁之间形成所述容留腔。
3、 根据权利要求 1所述的背光模组， 其中， 所述支架的底板的靠近所述 背框的侧壁的部分沿着远离所述背框的底板的方向凸起而形成所述容留腔。
4、 根据权利要求 1所述的背光模组， 其中， 所述支架的底板的远离所述 背框的侧壁的部分贴合所述背框的底板， 且所述支架的底板的远离所述背框的 侧壁的部分上设有第二贯穿孔， 所述背框的底板上与所述第二贯穿孔相应的位 置设有固定孔， 固定件依次通过所述第二贯穿孔、 固定孔后将所述支架的底板 与所述背框的底板固定连接。
5、 根据权利要求 4所述的背光模组， 其中， 所述支架的底板的远离所述 背框的侧壁的部分上还设有第一贯穿孔， 所述背框的底板上与所述第一贯穿孔 相应的位置设有连接孔， 所述第二贯穿孔与所述第一贯穿孔相通， 所述第二贯 穿孔到所述第一贯穿孔的方向垂直于所述背框的侧壁所在的平面， 且所述第一 贯穿孔更靠近所述背框的侧壁， 活动连接件依次通过所述第一贯穿孔、 连接孔 后将所述支架的底板与所述背框的底板连接， 且使所述支架在从所述背框的侧 壁到所述支架的侧壁的方向上移动。
6、 根据权利要求 5所述的背光模组， 其中， 所述活动连接件为台阶式螺 钉， 所述台阶式螺钉的中部不设螺紋， 且所述台阶式螺钉的中部的高度大于所 述支架的底板的厚度。
7、 根据权利要求 2所述的背光模组， 其中， 所述背光模组还包括胶框， 所述胶框的侧壁设在所述容留腔中并与所述背框的侧壁固定连接， 且所述胶框 的侧壁的端部沿着从所述背框的侧壁到所述支架的侧壁的方向沿伸而形成支 撑台， 所述支撑台用于支撑所述柔性电路板以及与所述柔性电路板连接的印刷 电路板。
8、 一种液晶显示器， 包括背光模组、 设置在所述背光模组之上的液晶面 板以及外框， 所述外框的框边将所述液晶面板按压在所述背光模组之上， 且所 述外框的侧壁与所述背光模组中的所述支架的侧壁固定连接， 进而将所述液晶 面板与所述背光模组固定， 其中， 所述背光模组包括背框和支架， 所述背框设 置在所述支架之上并与所述支架固定连接， 且所述背框与所述支架之间形成一 容留腔， 所述容留腔用于容置柔性电路板以及与所述柔性电路板连接的印刷电 路板。
9、 根据权利要求 8所述的液晶显示器， 其中， 所述支架的侧壁与所述背 框的侧壁之间形成所述容留腔。
10、 根据权利要求 8所述的液晶显示器， 其中， 所述支架的底板的靠近所 述背框的侧壁的部分沿着远离所述背框的底板的方向凸起而形成所述容留腔。
11、 根据权利要求 8所述的液晶显示器， 其中， 所述支架的底板的远离所 述背框的侧壁的部分贴合所述背框的底板， 且所述支架的底板的远离所述背框 的侧壁的部分上设有第二贯穿孔， 所述背框的底板上与所述第二贯穿孔相应的 位置设有固定孔， 固定件依次通过所述第二贯穿孔、 固定孔后将所述支架的底 板与所述背框的底板固定连接。
12、 根据权利要求 11所述的液晶显示器， 其中， 所述支架的底板的远离 所述背框的侧壁的部分上还设有第一贯穿孔， 所述背框的底板上与所述第一贯 穿孔相应的位置设有连接孔， 所述第二贯穿孔与所述第一贯穿孔相通， 所述第 二贯穿孔到所述第一贯穿孔的方向垂直于所述背框的侧壁所在的平面， 且所述 第一贯穿孔更靠近所述背框的侧壁， 活动连接件依次通过所述第一贯穿孔、连 接孔后将所述支架的底板与所述背框的底板连接， 且使所述支架在从所述背框 的侧壁到所述支架的侧壁的方向上移动。
13、 根据权利要求 12所述的液晶显示器， 其中， 所述活动连接件为台阶 式螺钉， 所述台阶式螺钉的中部不设螺紋， 且所述台阶式螺钉的中部的高度大 于所述支架的底板的厚度。
14、根据权利要求 9所述的液晶显示器，其中，所述背光模组还包括胶框， 所述胶框的侧壁设在所述容留腔中并与所述背框的侧壁固定连接， 且所述胶框 的侧壁的端部沿着从所述背框的侧壁到所述支架的侧壁的方向沿伸而形成支 撑台， 所述支撑台用于支撑所述柔性电路板以及与所述柔性电路板连接的印刷 电路板。
15、 根据权利要求 8所述的液晶显示器， 其中， 所述外框的侧壁与所述支 架的侧壁通过螺钉锁附固定连接。
16、 根据权利要求 8所述的液晶显示器， 其中， 所述支架的侧壁上设有卡 钩， 所述外框的侧壁上与所述卡钩对应的位置设有卡孔， 所述卡钩与所述卡孔 对应卡合固定， 以使所述外框的侧壁与所述支架的侧壁固定连接。
PCT/CN2013/085232 2013-10-12 2013-10-15 背光模组及液晶显示器 WO2015051556A1 (zh)

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