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PCB fixing structure and liquid crystal display device

一种液晶显示装置、固定结构的技术，应用在支撑结构安装、电路装置、安装板安全装置等方向，能够解决PCB与背板接触性不佳、螺丝或卡扣接触性不可控、PCB接地性不到保证等问题，达到良好导电性、提升接地性、防止静电击伤的效果

Active Publication Date: 2016-05-18
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the traditional design, the PCB is fixed on the backplane by screws or buckles, the process is complicated, and because the contact of the screws or buckles is uncontrollable, it is easy to cause poor contact between the PCB and the backplane, making the grounding of the PCB poor. If there is no guarantee, when there is interference from the outside world such as electrostatic discharge to the PCB, the interference cannot be quickly transmitted to the backplane, which may easily cause ESD failure
In order to solve this problem, the traditional design increases the grounding by adding an additional fixed structure, but the production cost also increases

Method used

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  • PCB fixing structure and liquid crystal display device
  • PCB fixing structure and liquid crystal display device
  • PCB fixing structure and liquid crystal display device

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Embodiment Construction

[0034] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0035] see figure 2 , and combined with image 3 , the present invention provides a PCB fixing structure, comprising: a backplane 10, a PCB50 disposed on the backplane 10, an annular conductive foam 30 sleeved on the PCB50, an annular conductive foam 30 and the backplane 10 The conductive glue 20 between them, and the PCB cover 40 covering the PCB50 from above the backplane 10; the PCB50 includes a grounding area, and the annular conductive foam 30 is electrically connected to the grounding area of ​​the PCB50;

[0036] The PCB fixing structure attaches the ring-shaped conductive foam 30 to the back plate 10 through the conductive glue 20, and then fixes the PCB 50 sleeved in the ring-shaped conductive foam 30 on the back plate; this fixing ...

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PUM

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Abstract

The invention provides a PCB fixing structure and a liquid crystal display device. The PCB fixing structure fixes a PCB (50) on a back board (10) through annular conductive foam (30) and conductive glue (20), thereby improving contact performance between the PCB (50) and the back board (10), and improving grounding performance of the PCB. Then the annular conductive foam (30) is squeezed through a PCB housing (40). Enough compression ratio of the annular conductive foam for ensuring high electric conductivity is ensured, and grounding performance of the PCB is further improved, thereby conducting an ESD interference timely and effectively, preventing electrostatic injury, simplifying a PCB fixing process and saving working hour. The liquid crystal display device with the PCB fixing structure has advantages of simplifying the PCB fixing process in the liquid crystal display device, saving working hour, improving grounding performance of the PCB and preventing electrostatic injury.

Description

technical field [0001] The invention relates to the field of display manufacturing, in particular to a PCB fixing structure and a liquid crystal display device. Background technique [0002] Liquid Crystal Display (LCD) has many advantages such as thin body, power saving, and no radiation, and has been widely used, such as: LCD TV, mobile phone, personal digital assistant (PDA), digital camera, computer screen or notebook computer Screens, etc., dominate the field of flat panel displays. [0003] A thin film transistor liquid crystal display (Thin Film Transistor Liquid Crystal Display, TFT-LCD) is one of the main types of flat panel displays. The thin film transistor liquid crystal display controls the input of data signals through a thin film transistor switch, and then controls the screen display. [0004] Specifically, see figure 1 , the main driving principle of the TFT-LCD is that the main board of the system (not shown) is connected to the connector (connector) 100 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K9/00G02F1/1333
CPCG02F1/133308H05K9/0024H05K9/0039H05K9/0096H05K1/0215H05K1/0259H05K3/325H05K2201/0314H05K2201/10136G02F1/1303G02F1/13306H05K3/301H05K3/32H05K7/1417H05K7/1422H05K7/1438H05K9/0079
Inventor 黄笑宇
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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