WO2017015976A1 - 一种驱动电路板固定结构及液晶显示装置 - Google Patents

一种驱动电路板固定结构及液晶显示装置 Download PDF

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Publication number
WO2017015976A1
WO2017015976A1 PCT/CN2015/085806 CN2015085806W WO2017015976A1 WO 2017015976 A1 WO2017015976 A1 WO 2017015976A1 CN 2015085806 W CN2015085806 W CN 2015085806W WO 2017015976 A1 WO2017015976 A1 WO 2017015976A1
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Prior art keywords
circuit board
driving circuit
main body
fixing structure
body portion
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PCT/CN2015/085806
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English (en)
French (fr)
Inventor
萧宇均
李全
唐国富
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深圳市华星光电技术有限公司
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Priority to US14/769,807 priority Critical patent/US9645425B2/en
Publication of WO2017015976A1 publication Critical patent/WO2017015976A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • 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
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • 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 display technologies, and in particular, to a driving circuit board fixing structure and a liquid crystal display device.
  • COF Chip On Flex or Chip On Film, often referred to as flip chip
  • a driver IC integrated circuit
  • a chip carrier that bonds gold bumps on a chip to internal pins on a flexible substrate circuit by thermal compression bonding.
  • the flexible substrate circuit of the COF has pins designed with an input end and an output end, the output pin is used for bonding with the liquid crystal display glass substrate, and the input terminal pin is used for bonding with the driving circuit board for generating the control signal. .
  • the same size panel will be matched with different lengths of COF and different size drive boards.
  • the backlight module in order to reduce the development of the mold, reduce the development cost, and shorten the development cycle, it is generally desired that the backlight module be compatible with liquid crystal panels of different external dimensions. Therefore, how to design the connection structure between the COF and the driving board, so that different backlight modules can be compatible with different liquid crystal panels has become a technical problem to be solved.
  • the present invention provides a driving circuit board fixing structure and a liquid crystal display device, so that the backlight module can be compatible with different liquid crystal panels.
  • a driving circuit board fixing structure comprising a plate-shaped main body portion and a plurality of convex portions provided on a surface of the main body portion, wherein the plurality of convex portions are spaced apart on the main body portion, and the convex portion is The protruding height increases from the first end to the second end of the main body portion one by one.
  • the convex portion is a strip-shaped convex rib, and the plurality of convex portions are parallel to each other.
  • the convex portion is a bump or a protrusion, and the convex portion is arranged in a row in a direction from the first end to the second end, and each of the rows is provided with a plurality of the convex portions.
  • the second end of the main body portion is provided with a first fixing hole.
  • the driving circuit board fixing structure further includes a base provided at the second end of the main body portion.
  • the base comprises a partition spaced apart from the main body.
  • the partition plate is provided with a second fixing hole.
  • the first end of the main body portion is provided with a guiding portion that is the same as the protruding direction of the convex portion, and an outer surface of the guiding portion is inclined toward the second end.
  • Another object of the present invention is to provide a liquid crystal display device including a liquid crystal panel, a backlight module, a driving circuit board, a COF connected between the liquid crystal panel and the driving circuit board, and the driving circuit board fixing structure.
  • the driving circuit board fixing structure is disposed on one side of the backlight module, and the bottom of the driving circuit board is placed on the convex portion of the driving circuit board fixing structure.
  • the liquid crystal display device further includes a front frame, and the driving circuit board fixing structure is fixed on a sidewall of the front frame.
  • the present invention provides a fixing structure which can be used for fixing a driving circuit board in a liquid crystal display device, a plurality of convex portions provided on a surface of a plate-shaped main body portion, and the heights of the convex portions are set from top to bottom Increasingly, the COF of different lengths and the drive boards of different sizes can be fixed, so that different backlight modules can be compatible with different liquid crystal panels, thereby reducing the development cost of the backlight module.
  • FIG. 1 is a schematic perspective structural view of a driving circuit board fixing structure according to an embodiment of the present invention.
  • FIG. 2 is a side view showing the structure of a driving circuit board fixing structure according to an embodiment of the present invention.
  • FIG. 3 is another schematic structural diagram of a driving circuit board fixing structure according to an embodiment of the present invention.
  • FIG. 4 is still another schematic structural view of a driving circuit board fixing structure according to an embodiment of the present invention.
  • FIG. 5 is a schematic view showing a state of use of a driving circuit board fixing structure of a liquid crystal display device according to an embodiment of the present invention.
  • FIG. 6 is a schematic view showing another use state of a driving circuit board fixing structure of a liquid crystal display device according to an embodiment of the present invention.
  • the driving circuit board fixing structure of the present invention includes a plate-shaped main body portion 11 and a plurality of convex portions 12 provided on the surface of the main body portion 11, and the plurality of convex portions 12 are in the height direction of the main body portion 11 (i.e., The longitudinal direction of 1 is spaced apart, and in the longitudinal direction, the convex height of the convex portion 12 with respect to the main body portion 11 is increased from top to bottom.
  • the boss portion 12 is a strip-shaped rib, and a step-shaped support portion is formed on the side surface of the main body portion 11 to support the driving circuit board.
  • a plurality of ribs 12 are provided on the same side of the main body portion 11, and a plurality of ribs are disposed in parallel with each other. Since the height of the protrusions of the ribs increases from top to bottom, the driving circuit board can be selectively supported by the ribs of the corresponding height according to the situation, and at the same time, the inner side of the driving circuit board is attached to the other rib of the upper part. In this way, the driving circuit board is restrained in both the lateral direction and the longitudinal direction to achieve support.
  • the boss portion 12 may also be a bump or a stud
  • FIG. 3 is a form in which the boss portion 12 is provided as a bump
  • FIG. 4 is a form in which the boss portion 12 is provided as a stud.
  • the protrusions 12 may be arranged in a row in the height direction of the main body portion 11, and each row is provided with a plurality of horizontally spaced protrusions 12, and the protrusion height of each row of the bumps or protrusions The same, and the height of the bump or the stud is increased from top to bottom, and can also achieve the same supporting effect.
  • the bottom of the main body portion 11 is further provided with a base 14 whose top portion is provided with a guide portion 17 which is convex in the same direction as the convex portion 12.
  • the base 14 includes a plate body portion connected to the bottom of the main body portion 11 and a partition plate 15 spaced apart from the main body portion 11.
  • the plate body portion and the partition plate 15 of the base portion 14 connected to the bottom portion of the main body portion 11 are disassembled and provided with a pair of first fixings.
  • the driving circuit board fixing structure can be fixed to other structures of the liquid crystal display device by sequentially threading the screw fasteners in the first fixing holes 13 and the second fixing holes 16.
  • the top surface of the guiding portion 17 is inclined obliquely downward. When the driving circuit board is inserted from the top to the bottom of the boss portion 12 of the driving circuit board fixing structure, the inclined structure of the guiding portion 17 can function as a guide insertion. After the driving circuit board is fully inserted, the guiding portion 17 can also limit the driving circuit board block The role of the board prevents the drive board from jumping out of the top.
  • the driving circuit board fixing structure of the embodiment of the present invention may be integrally formed or may be formed by splicing a plurality of structures.
  • the driving circuit board fixing structure is applied to a liquid crystal display device.
  • the liquid crystal display device includes a liquid crystal panel 1, a backlight module 2, a driving circuit board 3, a COF 4 connected between the liquid crystal panel 1 and the driving circuit board 3, and a fixing structure of the driving circuit board.
  • the liquid crystal panel 1 is disposed in the backlight module 2.
  • the driving circuit board fixing structure is disposed on one side of the backlight module 2, the driving circuit board 3 is inserted into the driving circuit board fixing structure, and the bottom portion thereof is placed on a row of the convex portion 12 of the driving circuit board fixing structure, The inner side surface is closely attached to the outer surface of the upper row of the convex portions 12, and the front frame 5 is disposed on the outer surface of the liquid crystal panel 1 and the backlight module 2 for protection.
  • the driving circuit board fixing structure can be fixed by the threaded fasteners.
  • the base 14 is fixed to the side wall of the front frame 5. With such an arrangement, the drive circuit board 3 is restrained both in the lateral direction and the longitudinal direction, and does not come out of the drive circuit board fixing structure in the longitudinal direction. As shown in FIG.
  • the driving circuit board 3 when the driving circuit board 3 is long, the driving circuit board 3 can be continuously inserted, and supported by a certain level of the boss portion 12 at the bottom, so that the driving circuit board 3 is completely inserted into the driving circuit board fixing structure. Inside. When the drive circuit board 3 is longer, it can also be inserted into the gap between the partition 15 of the base 14 and the main body portion 11. In this way, even if the size of the COF and the driving circuit board changes, the backlight module and the liquid crystal panel are not redesigned, so that different backlight modules can be compatible with different liquid crystal panels, thereby reducing the development cost of the backlight module.

Abstract

一种驱动电路板固定结构，包括板状的主体部（11）和主体部（11）表面设置的多个凸起部（12），多个凸起部（12）在主体部（11）上间隔设置，凸起部（12）的凸出高度从主体部（11）的第一端向第二端逐个增大。还提供了一种液晶显示装置。通过驱动电路板固定结构，可以对不同长度尺寸的COF和不同大小尺寸的驱动板进行固定，使得不同的背光源模组能够兼容不同的液晶面板，降低了背光模组的开发成本。

Description

一种驱动电路板固定结构及液晶显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种驱动电路板固定结构及液晶显示装置。
背景技术
COF(Chip On Flex或Chip On Film，常称覆晶薄膜)是将驱动IC(integrated circuit，集成电路)固定于柔性线路板上晶粒软膜构装技术，是运用软质附加电路板作为封装芯片载体，透过热压合将芯片上的金凸块与软性基板电路上的内引脚接合的技术。
通常COF的软性基板电路上会有设计有输入端及输出端的引脚，输出端引脚用于与液晶显示器玻璃基板接合，而输入端引脚则用于与产生控制信号的驱动电路板接合。
在液晶面板的开发过程中，由于差异化需求的考量，同一尺寸的面板会搭配不同长度尺寸的COF和不同大小尺寸的驱动板。而在背光源模组的开发中，为减少模具的开发，降低开发成本，缩短开发周期，通常希望背光源模组兼容不同外观尺寸的液晶面板。因此，如何设计COF与驱动板的连接结构，使不同的背光源模组能够兼容不同的液晶面板成为亟待解决的技术问题。
发明内容
鉴于现有技术存在的不足，本发明提供了一种驱动电路板固定结构及液晶显示装置，使得背光源模组能够兼容不同的液晶面板。
为了实现上述的目的，本发明采用了如下的技术方案：
一种驱动电路板固定结构，包括板状的主体部和所述主体部表面设置的多个凸起部，多个所述凸起部在所述主体部上间隔设置，所述凸起部的凸出高度从所述主体部的第一端向第二端逐个增大。
其中，所述凸起部为条状的凸筋，多个所述凸起部相互平行。
或者，所述凸起部为凸块或凸柱，所述凸起部在所述第一端至所述第二端的方向上成排设置，每一排设有多个所述凸起部。
其中，所述主体部的所述第二端开设有第一固定孔。
其中，所述驱动电路板固定结构还包括设于所述主体部的所述第二端的底座。
其中，所述底座包括与所述主体部间隔设置的隔板。
其中，所述隔板上开设有第二固定孔。
其中，所述主体部的所述第一端设有与所述凸起部凸出方向相同的导向部，所述导向部的外表面朝所述第二端倾斜。
本发明的另一目的在于提供一种液晶显示装置，包括液晶面板、背光模组、驱动电路板、连接在所述液晶面板和所述驱动电路板之间的COF以及上述驱动电路板固定结构，所述驱动电路板固定结构设于所述背光模组的一侧，所述驱动电路板的底部放置在所述驱动电路板固定结构的所述凸起部上。
其中，所述液晶显示装置还包括前框，所述驱动电路板固定结构固定在所述前框的侧壁。
本发明通过设计一种可用于液晶显示装置内对驱动电路板进行固定的固定结构，在板状的主体部表面设置的多个凸起部，并将这些凸起部高度设置为自上而下逐个增大，可以对不同长度尺寸的COF和不同大小尺寸的驱动板进行固定，使得不同的背光源模组能够兼容不同的液晶面板，降低了背光模组的开发成本。
附图说明
图1为本发明实施例的驱动电路板固定结构的立体结构示意图。
图2为本发明实施例的驱动电路板固定结构的侧视结构示意图。
图3为本发明实施例的驱动电路板固定结构的另一种结构示意图。
图4为本发明实施例的驱动电路板固定结构的又一种结构示意图。
图5为本发明实施例的液晶显示装置的驱动电路板固定结构的一种使用状态示意图。
图6为本发明实施例的液晶显示装置的驱动电路板固定结构的另一种使用状态示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
参阅图1，本发明的驱动电路板固定结构包括板状的主体部11和主体部11表面设置的多个凸起部12，多个凸起部12在主体部11的高度方向上(即图1的纵向上)间隔设置，且在纵向上，凸起部12相对于主体部11的凸出高度自上而下逐个增大。
如图2，较佳地，凸起部12为条状的凸筋，在主体部11的侧面形成台阶形的支撑部，可用于支撑驱动电路板。多根凸筋12设在主体部11的同一个侧面，且多根凸筋相互平行设置。由于凸筋的凸起高度自上而下逐个增大，驱动电路板可以根据情况选择性地由相应高度的凸筋进行支撑，同时，驱动电路板的内侧面与上部的另一凸筋进行贴合，这样驱动电路板在横向和纵向上均受到限制而实现支撑。
凸起部12也可以为凸块或凸柱，图3是将凸起部12设置成凸块的形式，图4是将凸起部12设置成凸柱的形式。具体可以在主体部11的高度方向上成排设置凸起部12，且每一排均设有多个水平方向上间隔的凸起部12，每一排的凸块或凸柱的凸出高度相同，且凸块或凸柱的高度自上而下逐排增大，也能起到相同的支撑效果。
主体部11的底部还设有底座14，其顶部设有与凸起部12凸出方向相同的导向部17。
其中，底座14包括与主体部11底部连接的板体部分和与主体部11间隔设置的隔板15，底座14与主体部11底部连接的板体部分和隔板15分解开设有一对第一固定孔13和一对第二固定孔16。可通过将螺纹紧固件依次穿设在第一固定孔13和第二固定孔16内将该驱动电路板固定结构固定在液晶显示装置的其他结构上。导向部17的顶面朝斜下方倾斜，当驱动电路板从上至下插入到驱动电路板固定结构的凸起部12时，该导向部17的倾斜结构可以起到引导插入的功能，同时，驱动电路板完全插入后，该导向部17还能起到限制驱动电路板挡 板的作用，防止驱动电路板从顶部跳出。
需要说明的是，本发明实施例的驱动电路板固定结构可以为一体成型，也可以是由多个结构拼接而成。
结合图5，为该驱动电路板固定结构应用在液晶显示装置内的情形。液晶显示装置包括液晶面板1、背光模组2、驱动电路板3、连接在液晶面板1和驱动电路板3之间的COF4以及该驱动电路板固定结构，液晶面板1设于背光模组2的上方，驱动电路板固定结构设于背光模组2的一侧，驱动电路板3插入到驱动电路板固定结构上，且其底部放置在驱动电路板固定结构的一排凸起部12上，其内侧面紧贴于上面的一排凸起部12外表面，前框5设在液晶面板1和背光模组2的外表面，起到保护作用，通过螺纹紧固件可将驱动电路板固定结构的底座14固定到前框5的侧壁。通过这样的设置，驱动电路板3在横向和纵向上均受到约束，而且不会在纵向上脱出驱动电路板固定结构。如图6，当驱动电路板3较长时，可以将驱动电路板3继续插入，改为由底部的某一级凸起部12进行支撑，使驱动电路板3完全插入到驱动电路板固定结构内。当驱动电路板3更长时，还可以插入到底座14的隔板15和与主体部11之间的间隙内。这样，即使COF和驱动电路板的尺寸发生变化，也不用重新设计背光模组和液晶面板，使得不同的背光模组能够兼容不同的液晶面板，降低了背光模组的开发成本。
以上所述仅是本申请的具体实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。

Claims (20)

  1. 一种驱动电路板固定结构，其中，包括板状的主体部和所述主体部表面设置的多个凸起部，多个所述凸起部在所述主体部上间隔设置，所述凸起部的凸出高度从所述主体部的第一端向第二端逐个增大。
  2. 根据权利要求1所述的驱动电路板固定结构，其中，所述凸起部为条状的凸筋，多个所述凸起部相互平行。
  3. 根据权利要求1所述的驱动电路板固定结构，其中，所述凸起部为凸块或凸柱，所述凸起部在所述第一端至所述第二端的方向上成排设置，每一排设有多个所述凸起部。
  4. 根据权利要求1所述的驱动电路板固定结构，其中，所述主体部的所述第二端开设有第一固定孔。
  5. 根据权利要求1所述的驱动电路板固定结构，其中，还包括设于所述主体部的所述第二端的底座。
  6. 根据权利要求5所述的驱动电路板固定结构，其中，所述底座包括与所述主体部间隔设置的隔板。
  7. 根据权利要求6所述的驱动电路板固定结构，其中，所述隔板上开设有第二固定孔。
  8. 根据权利要求2所述的驱动电路板固定结构，其中，还包括设于所述主体部的所述第二端的底座。
  9. 根据权利要求8所述的驱动电路板固定结构，其中，所述底座包括与所述主体部间隔设置的隔板。
  10. 根据权利要求9所述的驱动电路板固定结构，其中，所述隔板上开设有第二固定孔。
  11. 根据权利要求1所述的驱动电路板固定结构，其中，所述主体部的所述第一端设有与所述凸起部凸出方向相同的导向部，所述导向部的外表面朝所述第二端倾斜。
  12. 一种液晶显示装置，其中，包括液晶面板、背光模组、驱动电路板、连接在所述液晶面板和所述驱动电路板之间的COF以及驱动电路板固定结构， 所述驱动电路板固定结构包括板状的主体部和所述主体部表面设置的多个凸起部，多个所述凸起部在所述主体部上间隔设置，所述凸起部的凸出高度从所述主体部的第一端向第二端逐个增大；所述驱动电路板固定结构设于所述背光模组的一侧，所述驱动电路板的底部放置在所述驱动电路板固定结构的所述凸起部上。
  13. 根据权利要求12所述的液晶显示装置，其中，还包括前框，所述驱动电路板固定结构固定在所述前框的侧壁。
  14. 根据权利要求12所述的液晶显示装置，其中，所述凸起部为条状的凸筋，多个所述凸起部相互平行。
  15. 根据权利要求12所述的液晶显示装置，其中，所述凸起部为凸块或凸柱，所述凸起部在所述第一端至所述第二端的方向上成排设置，每一排设有多个所述凸起部。
  16. 根据权利要求12所述的液晶显示装置，其中，所述主体部的所述第二端开设有第一固定孔。
  17. 根据权利要求12所述的液晶显示装置，其中，所述驱动电路板固定结构还包括设于所述主体部的所述第二端的底座。
  18. 根据权利要求17所述的液晶显示装置，其中，所述底座包括与所述主体部间隔设置的隔板。
  19. 根据权利要求18所述的液晶显示装置，其中，所述隔板上开设有第二固定孔。
  20. 根据权利要求12所述的液晶显示装置，其中，所述主体部的所述第一端设有与所述凸起部凸出方向相同的导向部，所述导向部的外表面朝所述第二端倾斜。
PCT/CN2015/085806 2015-07-27 2015-07-31 一种驱动电路板固定结构及液晶显示装置 WO2017015976A1 (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002077677A (ja) * 2000-09-05 2002-03-15 Fuji Photo Film Co Ltd デジタルカメラ
JP2007334244A (ja) * 2006-06-19 2007-12-27 Sony Corp 表示装置
CN101996533A (zh) * 2009-08-24 2011-03-30 深圳市奥力兴光电科技有限公司 一种led显示单元模组及其配件
US20120134123A1 (en) * 2010-11-25 2012-05-31 Samsung Mobile Display Co., Ltd. Pcb fixing device and flat panel display including the same
CN204090401U (zh) * 2014-09-03 2015-01-07 深圳Tcl新技术有限公司 电路板固定结构、液晶显示器及液晶电视机
CN204143110U (zh) * 2014-09-01 2015-02-04 青岛海信电器股份有限公司 一种用于固定Source Board的支架

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002077677A (ja) * 2000-09-05 2002-03-15 Fuji Photo Film Co Ltd デジタルカメラ
JP2007334244A (ja) * 2006-06-19 2007-12-27 Sony Corp 表示装置
CN101996533A (zh) * 2009-08-24 2011-03-30 深圳市奥力兴光电科技有限公司 一种led显示单元模组及其配件
US20120134123A1 (en) * 2010-11-25 2012-05-31 Samsung Mobile Display Co., Ltd. Pcb fixing device and flat panel display including the same
CN204143110U (zh) * 2014-09-01 2015-02-04 青岛海信电器股份有限公司 一种用于固定Source Board的支架
CN204090401U (zh) * 2014-09-03 2015-01-07 深圳Tcl新技术有限公司 电路板固定结构、液晶显示器及液晶电视机

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