IP Library Granted Patent US 8,243,243
Granted Patent B2
US 8,243,243 · App. 12/190,831 · Granted Aug 14, 2012

Display device

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Quick Facts
Patent No.
US 8,243,243
App. No.
12/190,831
Granted
Aug 14, 2012
Kind
B2
Abstract

An embodiment of the invention provides a display device having a common electrode and pixel electrodes disposed in an insulating state on one of a pair of substrates between which a liquid crystal layer is held, in which each of the pixel electrodes includes a plurality of electrode portions disposed in parallel with one another, each of the electrode portions has a flat surface shape in which each of the electrode portions is bent approximately at a central portion in an extension direction, and each of the pixel electrodes also includes a bridge portion through which corresponding ones of the electrode portions are connected to one another in the bending portion.

Claims (18)

1. A display device:

a pair of opposing substrates;

a common electrode carried on one of the substrates;

a plurality of pixel electrodes also carried on the one substrate; and

a liquid crystal layer between the substrates,

wherein each of said pixel electrodes comprises

(a) a plurality of electrode portions disposed in parallel with one another, each of the electrode portions having a single bend at approximately a central portion thereof relative to an extension direction thereby imparting a V-shape to each of the electrode portions,

(b) respective end edge bridges connecting the electrode portions to one another at respective end portions of the electrode portions, each of the electrode portions having two end portions disposed respectively about the central portion thereof, and the respective end edge bridges connecting the electrode portions to one another at both respective end portions of the electrode portions, and

(c) a central bridge portion connecting the electrode portions to one another at the bending portions, the central bridge portion disposed in parallel with the end edge bridges, the central bridge portion having a plurality of lateral edges at which the plurality of electrode portions connect to the central bridge portion, the lateral edges of the central bridge portion being angled relative to a direction along which the central bridge portion extends so that each of the electrode portions connects to a respective lateral edge of the central bridge portion at approximately a right angle.

2. The display device according to claim 1 , wherein a space portion surrounded by corresponding ones of the electrode portions and the central bridge portion is structured to have approximately a rectangular flat surface shape.

3. The display device according to claim 1 , including a light shielding portion which overlaps the central bridge portion.

4. The display device according to claim 1 , wherein the pixel electrodes are positioned on a liquid crystal layer side of the common electrode and an insulating film is positioned between the pixel electrodes and the common electrode.

5. The display device according to claim 1 , wherein a sensor portion is provided in each display region in which the pixel electrodes are disposed, respectively.

6. A pixel electrode for a liquid crystal display device in which the pixel electrode is disposed over a common electrode in an manner insulated therefrom, wherein the pixel electrode comprises:

(a) a plurality of electrode portions disposed in parallel with one another, each of the electrode portions having a single bend at approximately a central portion thereof relative to an extension direction thereby imparting a V-shape to each electrode portion;

(b) respective end edge bridges connecting the electrode portions to one another at respective end portions of the electrode portions, each of the electrode portions having two end portions disposed respectively about the central portion thereof, and the respective end edge bridges connecting the electrode portions to one another at both respective end portions of the electrode portions; and

(c) a central bridge portion connecting the electrode portions to one another at the bending portions, the central bridge portion disposed in parallel to the end edge bridges, the central bridge portion having a plurality of lateral edges at which the plurality of electrode portions connect to the central bridge portion, the lateral edges of the central bridge portion being angled relative to a direction along which the central bridge portion extends so that each of the electrode portions connects to a respective lateral edge of the central bridge portion at approximately a right angle.

7. The pixel electrode of claim 6 , wherein the pixel electrode is sinking comb shaped.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 11, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072398/0001 →
MERGER AND CHANGE OF NAME Recorded Jul 24, 2025
From: JAPAN DISPLAY EAST INC.; JAPAN DISPLAY WEST INC.
To: JAPAN DISPLAY INC.
Reel/Frame 071935/0063 →