Liquid crystal display panel

Patent metadata

Field	Value
Publication number	US-9964819-B2
Application number	US-201514893966-A
Country	US
Kind code	B2
Filing date	Aug 20, 2015
Priority date	Aug 18, 2015
Publication date	May 8, 2018
Grant date	May 8, 2018

Abstract

A liquid crystal display panel is disclosed. The liquid crystal display panel comprises a testing region, which comprises testing lines. The testing lines comprise data short lines and scan short lines and a static-electron-protection circuit. The static-electron-protection circuit is disposed between the testing lines and the common welding lead wires. The static-electricity-protection circuit is used to release the static electrons generated on the data lines or the scan lines through the common lines, when static electrons during the liquid crystal display manufacturing process of the data lines or the scan lines are generated.

First claim

What is claimed is:

1. A liquid crystal display panel, which comprising:
a display region, used to perform image display, the display region comprising:
a plurality of data lines, used to input with data signals;
a plurality of scan lines, used to input with scan signals; and
a plurality of common lines, used to input common signals;
a testing region, used to test the display region, the testing region comprising:
transmitting lines, which comprises a plurality of data welding lead-wires, a plurality of scan welding lead-wires, a plurality of common welding lead-wires; the data welding lead-wires being used to transmit the data signals to the data lines, the scan welding lead-wires being used to transmit the scan signals to the scan lines, the common welding lead-wires being used to transmit the common signals to the scan lines;
testing lines, which comprise data short lines and scan short lines, the data welding lead wires being connected with the data short lines, the scan welding lead wires being connected with the scan short lines;
a static-electron-protection circuit, disposed between the testing lines and the common welding lead wires, used to release the static electrons generated on the data lines or the scan lines through the common lines, when static electrons during the liquid crystal display manufacturing process of the data lines or the scan lines being generated;
the static-electricity-protection circuit comprises a first input terminal and a first output terminal, the first input terminal inputs the static electrons generated on the data lines or the scan lines, the first output terminal releases the static electrons generated on the data lines or the scan lines, the first input terminal connects with the testing lines, the first output terminal connects with the common welding common lead-wires;
when the static-electricity-protection circuit being disposed between the scan short lines and the common welding lead wires, at least one of the common welding lead-wires connect with the scan short lines through the static-electricity-protection circuit;
wherein the static-electricity-protection circuit comprises a first diode, a second diode, and a transistor;
wherein the transistor comprises a second input terminal, a second output terminal, and a control terminal;
wherein an anode of the first diode connects with the first input terminal, and a cathode of the first diode connects with a cathode of the second diode;
wherein an anode of the second diode connects with the first output terminal;
wherein the second input terminal of the transistor connects with the anode of the first diode; the second output terminal of the transistor connects with the anode of the second diode; the control terminal of the transistor connects with the cathode of the first diode; and
wherein when the data lines or the scan lines accumulate negative static electrons, the positive static electrons are released to the common lines by the second diode.

2. The liquid crystal display panel according to claim 1 , wherein when the data lines or the scan lines accumulate positive static electrons, the positive static electrons are released to the common lines by the first diode.

3. The liquid crystal display panel according to claim 1 , wherein:
the scan welding lead-wires comprise a first scan welding lead-wire set and a second scan welding lead-wire set, the scan short lines comprise a first scan short line and a second scan short line;
the first scan welding lead-wire set is constituted by scan welding lead-wires of (2K)th columns, the scan welding lead-wires of (2K)th columns electrically connect with each other by the first scan short line;
the second scan welding lead-wire set is constituted by scan welding lead-wires of (2K+1)th columns, the scan welding lead-wires of (2K+1)th columns electrically connect with each other by the second scan short line, where K is a positive integer.

4. The liquid crystal display panel according to claim 1 , wherein the liquid crystal display panel comprises a plurality of pixel units which are restrictively constituted by the data lines and the scan lines, the pixel units comprise red pixel units, green pixel units, and blue pixel units;
the data welding lead-wires comprise a first data welding lead-wire set, a second data welding lead-wire set, and a third data welding lead-wire set; the data short lines comprise a first data short line, a second data short line, and a third data short line;
the first data welding lead-wire set is constituted by data welding lead-wires which are connected with the red pixel units, all of the data welding lead-wires which are connected with the red pixel units electrically connect with each other by the first data short line;
the second data welding lead-wire set is constituted by data welding lead-wires which are connected with the green pixel units, all of the data welding lead-wires which are connected with the green pixel units electrically connect with each other by the second data short line;
the third data welding lead-wire set is constituted by data welding lead-wires which are connected with the blue pixel units, all of the data welding lead-wires which are connected with the blue pixel units electrically connect with each other by the third data short line.

5. The liquid crystal display panel according to claim 4 , wherein the pixel units further comprise white pixel units; the data short lines further comprise a fourth data short line; the data welding lead-wires further comprise a fourth data welding lead-wire set;
the fourth data welding lead-wire set is constituted by data welding lead-wires which are connected with the white pixel units, all of the data welding lead-wires which are connected with the white pixel units electrically connect with each other by the fourth data short line.

6. The liquid crystal display panel according to claim 1 , wherein when the static-electricity-protection circuit is disposed between the data short lines and the common welding lead wires, at least one of the common welding lead-wires connects with the data short lines through the static-electricity-protection circuit.

7. A liquid crystal display (LCD) panel, which comprising:
a display region, used to perform image display, the display region comprising:
a plurality of data lines, used to input with data signals;
a plurality of scan lines, used to input with scan signals; and
a plurality of common lines, used to input common signals;
a testing region, used to test the display region, the testing region comprising:
transmitting lines, which comprise a plurality of data welding lead-wires, a plurality of scan welding lead-wires, and a plurality of common welding lead-wires; the data welding lead-wires being used to transmit the data signals to the data lines, the scan welding lead-wires being used to transmit the scan signals to the scan lines, the common welding lead-wires being used to transmit the common signals to the scan lines;
testing lines, which comprise data short lines and scan short lines, the data welding lead wires being connected with the data short lines, the scan welding lead wires being connected with the scan short lines;
a static-electron-protection circuit, being disposed between the testing lines and the common welding lead wires, the static-electricity-protection circuit being used to release the static electrons generated on the data lines or the scan lines through the common lines, when static electrons during the liquid crystal display manufacturing process of the data lines or the scan lines being generated;
wherein the static-electricity-protection circuit comprises a first input terminal and a first output terminal, the first input terminal inputs the static electrons

Assignees

• Shenzhen China Star Optoelect

Inventors

• Huang Shishuai

Classifications

• G02F1/136204 Primary

  Arrangements to prevent high voltage or static electricity failures · CPC title

• G02F1/1309

  Repairing; Testing · CPC title

• G02F1/13452

  Conductors connecting driver circuitry and terminals of panels · CPC title

• G02F1/136286

  Wiring, e.g. gate line, drain line · CPC title

• G02F2001/136254

  Physics · mapped topic