IP Library Granted Patent US 7,683,376
Granted Patent B2
US 7,683,376 · App. 11/620,302 · Granted Mar 23, 2010

Liquid-crystal display devices and repairing method therefor

Assignee: Toshiba Matsushita Display Technology Co., Ltd.
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Quick Facts
Patent No.
US 7,683,376
App. No.
11/620,302
Granted
Mar 23, 2010
Kind
B2
Abstract

A liquid-crystal display device of OCB mode, comprising: signal and scanning lines arranged on an insulator substrate as the signal lines are intersected by the scanning lines to form intersections; pixel-dot TFTs arranged respectively in vicinity of the intersections and connected respectively with pixel electrodes, with the signal lines and with the scanning lines; and a repair-use construction for each pixel dot, which is convertible to a diode electrically connecting one of the pixel electrodes on the each pixel dot, to one of the signal lines.

Claims (11)

1. A liquid-crystal display device of OCB mode, comprising:

signal and scanning lines arranged on an insulator substrate as the signal lines are intersected by the scanning lines to form intersections;

pixel-dot TFTs arranged respectively in vicinity of the intersections and connected respectively with pixel electrodes, with the signal lines and with the scanning lines; and

a repair-use construction for each pixel dot, which is convertible to a diode electrically connecting one of the pixel electrodes on the each pixel dot, to one of the signal lines,

wherein the repair-use construction is arranged between said one of the pixel electrodes and said one of the signal lines, and is constructed as a TFT construction; and gate and source electrodes of the TFT construction are disconnected with each other and connectable as to form the diode.

2. A liquid-crystal display device of OCB mode, comprising:

signal and scanning lines arranged on an insulator substrate as the signal lines are intersected by the scanning lines to form intersections;

pixel-dot TFTs arranged respectively in vicinity of the intersections and connected respectively with pixel electrodes, with the signal lines and with the scanning lines;

a diode electrically connecting one of the pixel electrodes to one of the signal lines; and

a cut portion disconnecting said one of the pixel electrodes from associated one of the pixel-dot TFTs,

wherein the diode is arranged between said one of the pixel electrodes and said one of the signal lines, and is constructed as a TFT construction, gate and source electrodes of which are connected as short-circuited with each other.

Assignments (4)
CHANGE OF NAME Recorded Jun 8, 2012
From: TOSHIBA MATSUSHITA DISPLAY TECHNOLOGY CO., LTD.
To: TOSHIBA MOBILE DISPLAY CO., LTD.
Reel/Frame 028339/0273 →
CHANGE OF NAME Recorded Jun 8, 2012
From: TOSHIBA MOBILE DISPLAY CO., LTD.
To: JAPAN DISPLAY CENTRAL INC.
Reel/Frame 028339/0316 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S NAME PREVIOUSLY RECORDED ON REEL 018949 FRAME 0929. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Mar 16, 2007
From: FUKAMI, TETSUO; NAKAO, KENJI
To: TOSHIBA MATSUSHITA DISPLAY TECHNOLOGY CO., LTD.
Reel/Frame 019023/0167 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 2, 2007
From: FUKAMI, TETSUO; NAKAO, KENJI
To: TOSHIBA MATSUSHITA DISPLAY TECHOLOGY CO., LTD.
Reel/Frame 018949/0929 →
Priority Claims (1)
JP 2006-005345 · Jan 12, 2006 · national
Continuity (1)
Related Publication 20070159436A1 · Jul 12, 2007