IP Library Granted Patent US 7,728,935
Granted Patent B2
US 7,728,935 · App. 12/070,399 · Granted Jun 1, 2010

Liquid crystal device and method for manufacturing the same

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Quick Facts
Patent No.
US 7,728,935
App. No.
12/070,399
Granted
Jun 1, 2010
Kind
B2
Abstract

There is provided a liquid crystal device including a first substrate, a second substrate, a liquid crystal being held between the first substrate and the second substrate, a base layer having alternating linear grooves and linear protrusions on at least one of the first substrate and the second substrate, and an alignment layer of an oxide film covering the base layer and having wedge-shaped tops over the linear protrusions of the base layer.

Claims (13)

1. A liquid crystal device comprising:

a first substrate;

a second substrate;

a liquid crystal held between the first substrate and the second substrate;

a base layer provided on both the first substrate and the second substrate, each base layer having alternating linear grooves and linear protrusions; and

an alignment layer of an oxide film covering each base layer, each alignment layer having wedge-shaped tops over the linear protrusions of each base layer.

2. The liquid crystal device according to claim 1 , wherein each alignment layer is formed by high-density plasma chemical vapor deposition.

3. The liquid crystal device according to claim 1 , wherein each base layer is a plurality of linearly arranged base films having a rectangular cross-section.

4. The liquid crystal device according to claim 1 , wherein the first substrate includes pixel electrodes and a common electrode disposed on one insulating film; and

the alignment of liquid crystal molecules is controlled by a lateral electric field between the pixel electrodes and the common electrode.

5. The liquid crystal device according to claim 1 , wherein

the first substrate includes a pixel electrode and a common electrode disposed in different layers with an insulating film interposed therebetween; and

the alignment of liquid crystal molecules is controlled by a lateral electric field between the pixel electrode and the common electrode.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 15, 2018
From: SEIKO EPSON CORPORATION
To: 138 EAST LCD ADVANCEMENTS LIMITED
Reel/Frame 046153/0397 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 19, 2008
From: KAWAKAMI, YASUSHI
To: SEIKO EPSON CORPORATION
Reel/Frame 020574/0357 →