IP Library Patent Application 12791905
Patent Application
App. No. 12/791,905

LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF

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Quick Facts
Patent No.
US None
App. No.
12/791,905
Abstract

A liquid crystal display panel includes a first substrate, a second substrate, and a liquid crystal layer formed between the first substrate and the second substrate. A pixel area is formed on the first substrate, and a driver is formed on the substrate and electrically connected with the pixel area. A plurality of lines are electrically connected with the driver, and a plurality of pads are electrically connected with the plurality of lines. The plurality of pads are formed in a straight line and are not electrically connected with each other except for the electric connection with the plurality of lines.

Claims (14)

1 . A display device comprising:

a substrate;

a plurality of test pads, including a first group of test pads and a second group of test pads, formed on the substrate;

wherein test pads of the first group are arranged to provide a drain signal for testing said display device.

2 . The display device according to claim 1 , wherein test pads of the second group are arranged to provide a gate signal for testing said display device.

3 . The display device according to claim 1 , wherein said first group of test pads are arranged in a straight line.

4 . The display device according to claim 2 , wherein said second group of test pads are arranged in a straight line.

5 . The display device according to claim 2 , wherein the first group of test pads and the second group of test pads are arranged in a straight line.

6 . The display device according to claim 1 , wherein the first group of test pads are arranged to be used with primary colors displayed by said display device.

7 . The display device according to claim 1 , wherein the first group of test pads are arranged to be coupled to a drain driver of the display device and are located outside of a hidden area where the drain driver is located.

8 . The display device according to claim 2 , wherein the second group of test pads are arranged to be coupled to a gate driver of the display device and are located outside of a hidden area wherein the gate driver is located.

9 . The display device according to claim 7 , wherein the first group of test pads comprises six pads.

10 . The display device according to claim 8 , wherein the second group of test pads comprises three pads.

11 . The display device according to claim 7 , wherein the test pads of the first group of test pads are arranged in an interleaved manner.

Assignments (4)
COMPANY SPLIT PLAN TRANSFERRING FIFTY (50) PERCENT SHARE OF PATENTS AND PATENT APPLICATIONS Recorded Dec 12, 2011
From: HITACHI DISPLAYS, LTD.
To: IPS ALPHA SUPPORT CO., LTD.
Reel/Frame 027362/0466 →
COMPANY SPLIT PLAN TRANSFERRING ONE HUNDRED (100) PERCENT SHARE OF PATENT AND PATENT APPLICATIONS Recorded Dec 12, 2011
From: HITACHI, LTD.
To: HITACHI DISPLAYS, LTD.
Reel/Frame 027362/0612 →
MERGER/CHANGE OF NAME Recorded Dec 12, 2011
From: IPS ALPHA SUPPORT CO., LTD.
To: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
Reel/Frame 027363/0315 →
MERGER Recorded Jun 23, 2011
From: HITACHI DEVICE ENGINEERING CO., LTD.
To: HITACHI DISPLAYS, LTD.
Reel/Frame 026481/0032 →