Discharge apparatus and display panel preparation system based thereon

Patent metadata

Field	Value
Publication number	US-9775224-B2
Application number	US-201414500379-A
Country	US
Kind code	B2
Filing date	Sep 29, 2014
Priority date	Jun 10, 2014
Publication date	Sep 26, 2017
Grant date	Sep 26, 2017

Abstract

A discharge device and a display panel preparation system based thereon are disclosed. The discharge device includes a conductive contact terminal electrically connected with an electrostatic discharge contactor of a substrate to be processed; and a voltage controller electrically connected to the contact terminal for adjusting a voltage on the contact terminal. The discharge device is able to eliminate (e.g., neutralize) the static electricity on the substrate to be processed.

First claim

The invention claimed is:

1. An apparatus comprising a contact terminal and a voltage controller,
wherein the contact terminal is a conductor operable to directly connect with an electrostatic discharge contactor on a substrate to be processed, with the contact terminal being independent of any portion of the substrate to be processed, and
wherein the voltage controller is electrically connected to the contact terminal and operable to adjust a voltage on the contact terminal,
whereby static electricity on the substrate to be processed is neutralized,
wherein the voltage controller is a voltage source outside of the substrate to be processed whose output voltage is capable of being adjusted.

2. The apparatus of claim 1 , wherein the contact terminal is operable to shield the electrostatic discharge contactor.

3. The apparatus of claim 1 , wherein the contact terminal is plate-shaped.

4. A display panel preparation system comprising:
a substrate to be processed with a static electricity releasing line and an electrostatic discharge contactor disposed thereon;
a conductive contact terminal operable to directly connect with the electrostatic discharge contactor on the substrate to be processed, with the conductive contact terminal being independent of any portion of the substrate to be processed; and
a voltage controller electrically connected to the contact terminal, the voltage controller operable to adjust a voltage on the contact terminal, to neutralize the static electricity on the substrate to be processed,
wherein at least one display panel including metal lines therein is disposed on the substrate to be processed, and
wherein the static electricity releasing line is electrically connected to the metal lines and the electrostatic discharge contactor,
wherein the voltage controller is a voltage source outside of the substrate to be processed whose output voltage is capable of being adjusted.

5. The display panel preparation system of claim 4 , wherein the static electricity releasing line is disposed in a cutting region outside the display panel on the substrate to be processed, and
wherein the metal lines extend to the cutting region to connect with the static electricity releasing line.

6. The display panel preparation system of claim 5 , wherein the electrostatic discharge contactor is positioned in the cutting region.

7. The display panel preparation system of claim 6 , wherein the electrostatic discharge contactor is disposed at an edge of the substrate to be processed.

8. The display panel preparation system of claim 4 , wherein a width of the electrostatic discharge contactor is larger than a width of the static electricity releasing line.

9. The display panel preparation system of claim 4 , wherein the voltage controller provides a predetermined voltage to neutralize the static electricity.

10. The display panel preparation system of claim 4 , wherein the contact terminal is at least one of shaped and sized to shield the electrostatic discharge contactor during a manufacturing process of the display panel,
whereby the contact terminal prevents insulating material from covering the electrostatic discharge contactor.

11. The display panel preparation system of claim 4 , wherein the static electricity releasing line comprises at least one layer, and
wherein each layer of the static electricity releasing line corresponds to one layer of metal lines within the display panel.

12. The display panel preparation system of claim 11 , wherein a plurality of electrostatic discharge contactors are provided and connected to static electricity releasing lines of different layers, and
wherein the electrostatic discharge contactors are one of mutually independent or connected to each other.

13. The display panel preparation system of claim 12 , wherein a plurality of display panels are distributed in at least one of rows and columns on the substrate to be processed, and
wherein the corresponding static electricity releasing lines electrically connected to the metal lines within the display panels are distributed in at least one of rows and columns.

14. The display panels preparation system of claim 12 , wherein each layer of the static electricity releasing line includes a plurality of static electricity releasing lines.

15. The display panel preparation system of claim 14 , wherein the static electricity releasing lines are cross-distributed in one or more rows and one or more columns.

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Display Tech Co

Inventors

• Zhang Zhichao
• Guo Zongjie
• Liu Zheng
• Ding Xiangqian
• Liu Mingxuan

Classifications

• H05K9/0067 Primary

  Devices for protecting against damage from electrostatic discharge · CPC title

• H05F3/04 Primary

  by means of spark gaps or other discharge devices (devices providing for corona discharge per se H01T19/00) · CPC title