IP Library Granted Patent US 8,760,609
Granted Patent B2
US 8,760,609 · App. 13/927,539 · Granted Jun 24, 2014

Liquid crystal display device, display device and manufacturing method thereof

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Quick Facts
Patent No.
US 8,760,609
App. No.
13/927,539
Granted
Jun 24, 2014
Kind
B2
Abstract

Image display device having an electrode forming layer which includes a plurality of gate lines, a plurality of drain lines, a plurality of switching elements and the a plurality of pixel electrodes, and having reference electrode layer between the electrode forming layer and a substrate where the electrode forming layer formed thereon, and the reference electrode layer and the electrode forming layer are insulated by insulating layer.

Claims (23)

1. A liquid crystal display device comprising:

first and second substrate;

a liquid crystal layer sandwiched between the first and the second substrate;

a gate line formed on the first substrate;

a gate insulation layer formed on the gate line;

a drain line formed on the gate insulation layer;

a switching element comprising a gate electrode connected to the gate line, a first electrode connected to the drain line and formed on the gate insulation layer, and a second electrode formed on the gate insulation layer;

a pixel electrode connected to the second electrode of the switching element and formed on the gate insulation layer;

a first insulation layer formed on the second electrode of the switching element and the pixel electrode; and

a counter electrode overlapped with the pixel electrode and the drain line, and formed between the first substrate and the liquid crystal layer,

wherein the liquid crystal layer is driven by an electric field generated between the pixel electrode and the counter electrode,

wherein the counter electrode is overlapped with a neighboring pixel electrode in a direction of the gate line extending, and the pixel electrode overlaps with the second electrode between the gate insulation layer and the first insulation layer, and

wherein the counter electrode is a planer shape, and the pixel electrode comprises a slit having a first portion and a second portion, and both of the first portion and the second portion are not parallel with the gate line and the drain line.

2. A liquid crystal display device according to claim 1 ,

wherein there is no insulation layer between the pixel electrode and the second electrode, and the pixel electrode is connected to the second electrode without through any contact hole.

3. A liquid crystal display device according to claim 2 ,

wherein the counter electrode is disposed between the pixel electrode and the first substrate.

4. A liquid crystal display device according to claim 1 ,

wherein the counter electrode is overlapped with the gate line and a neighboring pixel electrode in a direction of the drain line extending.

5. A liquid crystal display device according to claim 4 ,

wherein there is no insulation layer between the pixel electrode and the second electrode, and the pixel electrode is connected to the second electrode without through any contact hole.

6. A liquid crystal display device according to claim 5 ,

wherein the counter electrode is disposed between the pixel electrode and the first substrate.

Assignments (6)
CHANGE OF NAME Recorded Nov 11, 2013
From: HITACHI DISPLAYS, LTD.
To: JAPAN DISPLAY EAST INC.
Reel/Frame 031618/0346 →
CHANGE OF NAME Recorded Nov 11, 2013
From: JAPAN DISPLAY EAST INC.
To: JAPAN DISPLAY INC.
Reel/Frame 031618/0613 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 26, 2013
From: NAKAYOSHI, YOSHIAKI; YANAGAWA, KAZUHIKO
To: HITACHI, LTD.
Reel/Frame 030690/0333 →
MERGER Recorded Jun 26, 2013
From: IPS ALPHA SUPPORT CO., LTD.
To: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
Reel/Frame 030690/0476 →
COMPANY SPLIT DOCUMENTS WHICH CONVEY 50% OWNERSHIP TO EACH OF THE RECEIVING PARTIES Recorded Jun 26, 2013
From: HITACHI DISPLAYS, LTD.
To: HITACHI DISPLAYS, LTD.; IPS ALPHA SUPPORT CO., LTD.
Reel/Frame 030695/0001 →
COMPANY SPLIT Recorded Jun 26, 2013
From: HITACHI, LTD.
To: HITACHI DISPLAYS, LTD.
Reel/Frame 030695/0097 →