IP Library Granted Patent US 8,964,155
Granted Patent B2
US 8,964,155 · App. 14/056,585 · Granted Feb 24, 2015

Liquid crystal display device

Inventors: Kikuo Ono (Mobara, JP); Makoto Yoneya (Hitachinaka, JP); Tsunenori Yamamoto (Hitachi, JP); Junichi Hirakata (Chiba, JP); Yoshiaki Nakayoshi (Ooamishirasato, JP)
Assignees: Japan Display Inc.; Panasonic Liquid Crystal Display Co., Ltd.
G02F1/134309G02F1/134363G02F1/13458G02F1/133345G02F1/13439G02F1/136286G02F1/1393G02F2201/40
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Quick Facts
Patent No.
US 8,964,155
App. No.
14/056,585
Granted
Feb 24, 2015
Kind
B2
Abstract

A liquid crystal display includes first and second substrates with a liquid crystal layer therebetween, and a plurality of pixel regions defined by drain and gate signal lines of the substrate. The pixel region has a common electrode formed of a transparent conducting layer having a plurality of slits, a pixel electrode formed of a transparent conducting layer and having plane shape, and a first insulating layer interposed between the common electrode and the pixel electrode. The common electrode is arranged between the pixel electrode and the liquid crystal layer, and the pixel electrode is overlapped with a plurality of slits of the common electrode. A thin film transistor is connected to the drain signal line, and the pixel electrode is connected to a source electrode of the thin film transistor. The common electrode overlaps with a connection portion of the pixel and source electrodes on the first insulating layer.

Claims (16)

1. A liquid crystal display comprising:

a first substrate and a second substrate opposed to each other with a liquid crystal layer therebetween, the first substrate having a plurality of drain signal lines and a plurality of gate signal lines; and

a plurality of pixel regions defined by the drain signal lines and the gate signal lines;

the pixel region having:

a common electrode formed of a transparent conducting layer having a plurality of slits;

a pixel electrode formed of a transparent conducting layer and having plane shape; and

a first insulating layer interposed between the common electrode and the pixel electrode;

wherein the common electrode arranged between the pixel electrode and the liquid crystal layer, the pixel electrode is overlapped with a plurality of slits of the common electrode;

wherein a thin film transistor is connected to the drain signal line;

wherein the pixel electrode is connected to a source electrode of the thin film transistor; and

wherein the common electrode is overlapping with a connection portion of the pixel electrode and the source electrode on the first insulating layer.

2. The liquid crystal display according to claim 1 , wherein the pixel electrode is formed on a second insulating layer which overlaps with the thin film transistor; and

wherein the pixel electrode is connected to the source electrode of the thin film transistor via a though hole of the second insulating layer.

3. The liquid crystal display according to claim 1 , wherein the pixel electrode is formed on the same layer of the source electrode of the thin film transistor.

4. The liquid crystal display according to claim 1 , wherein the counter electrode is overlapping with the thin film transistor on the first insulating layer.

5. The liquid crystal display according to claim 1 , wherein at least one of the first insulating layer and the second insulating layer is formed of a resin film.

Priority Claims (1)
JP 11-252763 · Sep 7, 1999 · national
Continuity (12)
Continuation 13827090 · Mar 14, 2013
Continuation 13542771 · Jul 6, 2012
Continuation 13231511 · Sep 13, 2011
Continuation 13094005 · Apr 26, 2011
Continuation 12881507 · Sep 14, 2010
Division 12331597 · Dec 10, 2008
Division 11925078 · Oct 26, 2007
Continuation 11779416 · Jul 18, 2007
Division 11002518 · Dec 3, 2004
Continuation 10939941 · Sep 14, 2004
Continuation 10070538
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