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Device used for preventing display panel paradoxical discharge and display panel preparation system

A display panel and preparation system technology, applied in the direction of protection against damage caused by electrostatic discharge, static electricity, electrical components, etc., can solve problems such as abnormal discharge, ineffective effect, and high production cost

Active Publication Date: 2014-09-17
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, changing the Mask design requires redesigning the mask for each layer, and the production cost is relatively high; changing the production process does not require redesigning the mask, and the production cost does not increase significantly, but it can be solved after changing the production process. The effect of the discharge problem is not obvious
Especially for large-size display screens or high-pixel-density display screens that are widely used now, the discharge problem is more obvious, and the above two methods cannot be solved.
[0004] Based on the above, the existing technology cannot effectively solve the problem of abnormal discharge caused by the failure to eliminate the accumulated charges on the surface of the display panel during the manufacturing process of the display panel.

Method used

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  • Device used for preventing display panel paradoxical discharge and display panel preparation system
  • Device used for preventing display panel paradoxical discharge and display panel preparation system
  • Device used for preventing display panel paradoxical discharge and display panel preparation system

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Embodiment 1

[0028] Based on the above, Embodiment 1 of the present invention proposes a device for preventing abnormal discharge of the display panel, including a contact terminal 70 and a voltage controller 80, the contact terminal 70 is a conductor, and is used to contact the electrostatic discharge contact 60 on the substrate 20 to be processed. To connect, the voltage controller 80 is connected to the contact terminal 70 for adjusting the voltage on the contact terminal 70 to remove static electricity on the substrate 20 to be processed.

[0029] The device is used in the production process of the display panel, wherein the display panel includes an array substrate and a color filter substrate. If the array substrate is taken as an example, it is specifically used to make a metal thin film on a substrate substrate (usually a glass substrate). Forming metal lines (such as grid lines), these metal lines will form charges on the surface of the substrate to be processed. Since the contact ...

Embodiment 2

[0033] Embodiment 2 of the present invention also provides a display panel preparation system, which includes, in addition to the device for preventing abnormal discharge of the display panel in Embodiment 1, a substrate 20 to be processed, on which an electrostatic lead-out line 50 is arranged. There is at least one display panel 30 on the processing substrate 20 , the display panel 30 includes a metal wire 40 , one end of the static electricity lead-out wire 50 is connected to the metal wire 40 , and the other end is connected to the static discharge contact 60 .

[0034] Since the cost of the patterning process is relatively high during the manufacture of the display panel 30, generally a plurality of display panels 30 need to be produced on a substrate 20 with a large area to be processed during the processing process, and the patterning process of the same layer of different display panels 30 is the same. Therefore, a plurality of display panels 30 will be fabricated simul...

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Abstract

The invention discloses a device used for preventing display panel paradoxical discharge and a display panel preparation system based on the device. The device used for preventing the display panel paradoxical discharge comprises a contact terminal and a voltage controller, wherein the contact terminal is a conductor and is used for being connected with an electrostatic discharge contact of a substrate to be processed; the voltage controller is connected with the contact terminal and is used for adjusting the voltage of the contact terminal and removing static electricity on the substrate to be processed. The device and the system are particularly suitable for the manufacturing process of a display panel with large size or high pixel density, a static electricity leading-out line absorb charges to eliminate a large number of charges which are accumulated on the surface of the display panel, when the voltage controller is connected to the electrostatic discharge contact by the contact terminal, the charges on the surface of the display panel are eliminated by adjusting voltage by the voltage controller, the control on the paradoxical discharge of the charges gathered on the surface of the display panel is realized, and the charges on the surface of the display panel and a plasma electric field in a technology reaction cavity are kept balanced.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a device for preventing abnormal discharge of a display panel and a display panel preparation system. Background technique [0002] At present, in the manufacturing process of TFT-LCD (Thin Film Transistor Liquid Crystal Display, Thin Film Transistor Liquid Crystal Display) display panel, due to the laying of various electrode lines such as common electrode lines and pixel electrode lines, it will accumulate on the surface area of ​​the display panel due to static electricity. A large number of charges, or charges that change with the alternating voltage, will attract the plasma in the process reaction chamber, and eventually cause the plasma electric field in the chamber to be disordered, resulting in the occurrence of abnormal discharge problems. The charge accumulated on the surface of the display panel is the main cause of the abnormal discharge problem. [0003] The curren...

Claims

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Application Information

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IPC IPC(8): G02F1/13
CPCH05K9/0067H05F3/04
Inventor 张治超郭总杰刘正丁向前刘明悬
Owner BOE TECH GRP CO LTD
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