IP Library Granted Patent US 9,235,094
Granted Patent B2
US 9,235,094 · App. 14/507,442 · Granted Jan 12, 2016

Liquid crystal display device

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Quick Facts
Patent No.
US 9,235,094
App. No.
14/507,442
Granted
Jan 12, 2016
Kind
B2
Abstract

In one embodiment, a liquid crystal display device comprises a pixel electrode including a first main electrode disposed between a first line and a second line and extending like a belt in a first extending direction. A first counter electrode includes a second main electrode extending like a belt in the first extending direction, a second counter electrode having a third main electrode extending like a belt in the first extending direction. The second and third main electrodes are disposed on both sides of the first main electrode, and an initial alignment direction of the liquid crystal molecules is parallel with a direction passing through an interstice between the first end side of the first main electrode and the second line, and through an interstice between the second end side of the first main electrode and the first line.

Claims (9)

1. A liquid crystal display device, comprising:

a first substrate including a first line and a second line extending in directions parallel with each other, a pixel electrode having a first main electrode disposed between the first line and the second line and extending like a belt in a first extending direction, a second main electrode extending like a belt in a second extending direction different from the first extending direction and connected with the first main electrode, a first auxiliary electrode extending from a second end side of the first main electrode toward the second line, a second auxiliary electrode extending from a connected portion of the first main electrode with the second main electrode toward the first line, and a third auxiliary electrode extending from a second end side of the second main electrode toward the second line, and a first alignment layer covering the pixel electrode;

a second substrate including a first counter electrode having a third main electrode extending like a belt in the first extending direction and a fourth main electrode extending like a belt in the second extending direction and connected with the third main electrode, a second counter electrode having a fifth main electrode extending like a belt in the first extending direction and a sixth main electrode extending like a belt in the second extending direction and connected with the fifth main electrode, and a second alignment layer covering the first counter electrode and the second counter electrode; and

a liquid crystal layer including liquid crystal molecules held between the first substrate and the second substrate,

wherein the third main electrode and the fifth main electrode are disposed on both sides of the first main electrode, the fourth main electrode and the sixth main electrode are disposed on both sides of the second main electrode, and an initial alignment direction of the liquid crystal molecules is parallel with a direction passing through an interstice between the second end side of the first main electrode and the first line and an interstice between the second end side of the second main electrode and the first line.

2. The liquid crystal display device according to claim 1 , wherein

the first counter electrode includes a fourth auxiliary electrode extending from a position in the third main electrode which is lined up with the second end side of the first main electrode toward the second counter electrode, and a fifth auxiliary electrode extending from a position in the fourth main electrode which is lined up with the second end side of the second main electrode toward the second counter electrode, and

the second electrode includes a sixth auxiliary electrode extending from a connection portion of the fifth main electrode with the sixth main electrode toward the first counter electrode.

3. The liquid crystal display device according to claim 1 , wherein the liquid crystal molecules are in a state of homogeneous alignment or splay alignment when electric field is not generated among the pixel electrode, the first counter electrode and the second counter electrode.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →