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LCD device with electro-static discharge protection function

A technology for electrostatic discharge protection and liquid crystal display devices, applied in circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, emergency protection circuit devices, etc., can solve the problem of increasing the layout and manufacturing process of flexible printed circuit boards Complexity, increased layout area and other issues, to achieve the effect of reducing the complexity of circuit design and manufacturing process, reducing the layout area

Active Publication Date: 2009-11-25
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, on the flexible printed circuit board, in addition to laying out multiple light source units, multiple electrostatic discharge protection units must be laid out, which will significantly increase the layout and process complexity of the flexible printed circuit board, and all The required layout area is thus increased

Method used

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  • LCD device with electro-static discharge protection function
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  • LCD device with electro-static discharge protection function

Examples

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Embodiment Construction

[0052] In order to make the present invention more clear and complete, the liquid crystal display device with electrostatic discharge protection function according to the present invention will be described in detail below with reference to the accompanying drawings, but the provided examples are not intended to limit the scope of the present invention.

[0053] image 3 It is a schematic diagram of the first embodiment of the liquid crystal display device of the present invention. Such as image 3 As shown, the liquid crystal display device 300 includes a liquid crystal display panel 310 and a flexible printed circuit board 350 . The liquid crystal display panel 310 includes a first ESD protection unit 320 and a second ESD protection unit 330 . A light source module 360 ​​is disposed on the flexible printed circuit board 350 . The light source module 360 ​​can be an LED module, and the LED module includes one LED unit or a plurality of LED units connected in parallel, and ...

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Abstract

The invention discloses a liquid crystal display device with electrostatic discharge protection function, which comprises a flexible printed circuit board, a liquid crystal display panel, a light source module, a first electrostatic discharge protection unit and a second electrostatic discharge protection unit. The light source module is arranged on the flexible printed circuit board, the first electrostatic discharge protection unit is arranged in the liquid crystal display panel, and the first electrostatic discharge protection unit is coupled between the first end of the light source module and the ground end of the flexible printed circuit board Meanwhile, the second electrostatic discharge protection unit is arranged in the liquid crystal display panel, and the second electrostatic discharge protection unit is coupled between the second end of the light source module and the ground end of the flexible printed circuit board. The present invention provides the electrostatic discharge protection required by the light source module by using the electrostatic discharge protection unit included in the liquid crystal display panel to reduce the circuit design and process complexity of the flexible printed circuit board by setting the light source module on the flexible printed circuit board. Reduce the layout area of ​​the flexible printed circuit board.

Description

technical field [0001] The present invention relates to a liquid crystal display device with electrostatic discharge (ESD) protection function, in particular to a liquid crystal display device using the electrostatic discharge protection mechanism of the liquid crystal display panel to protect the light source module. Background technique [0002] A liquid crystal display (Liquid Crystal Display, LCD) is a flat panel display widely used at present, and it has the characteristics of light and thin appearance, power saving and no radiation pollution. The working principle of the liquid crystal display device is to change the arrangement state of the liquid crystal molecules in the liquid crystal layer by changing the voltage difference between the two ends of the liquid crystal layer, so as to change the light transmittance of the liquid crystal layer, and cooperate with the light source provided by the light source module to display images. [0003] figure 1 It is a schemati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/133H02H9/00H05F3/04
Inventor 李素贞蔡沧祥
Owner AU OPTRONICS CORP
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