IP Library Granted Patent US 10,473,988
Granted Patent B2
US 10,473,988 · App. 15/843,532 · Granted Nov 12, 2019

Display device, electronic apparatus, and method of manufacturing display device

Inventor: Toshiharu Matsushima (Kanagawa, JP)
Assignee: Japan Display Inc.
G02F1/134363G02F2001/134318G02F2001/134372
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Quick Facts
Patent No.
US 10,473,988
App. No.
15/843,532
Granted
Nov 12, 2019
Kind
B2
Abstract

A display device includes an electrode layer and a liquid crystal layer. The electrode layer has a first electrode and a second electrode. The second electrode is opposed to the first electrode and having a plurality of openings extending in a same extending direction. The liquid crystal layer is disposed on the electrode layer. The liquid crystal molecules of the liquid crystal layer in a region in proximity to one side of the opening and liquid crystal molecules of the liquid crystal layer in a region in proximity to another side of the opening, the sides of the opening being opposed to each other in a width direction of the opening, are rotated in opposite directions from each other and aligned.

Claims (37)

1. A display device comprising:

an electrode including a plurality of openings, wherein

in a plan view perspective, each of the openings has a width extending in a width direction and a length extending in an extending direction, the length being greater than the width,

respective ones of the openings each have a first side and a second side that are opposed to each other in the width direction,

adjacent ones of the openings in the width direction have a communicating part in the width direction, and

each communicating part communicates the openings adjacent to each other in the width direction; and

a liquid crystal layer including liquid crystal molecules and disposed on the electrode,

wherein the openings adjacent to each other in the extending direction are displaced from each other in the width direction and arranged in a staggered form,

wherein, for a corresponding one of the openings, in the plan view perspective, respective ones of the liquid crystal molecules in a first region in proximity to the first side of the opening are aligned and rotated in a first direction, and respective ones of the liquid crystal molecules in a second region in proximity to the second side of the opening are aligned and rotated in a second direction that is opposite to the first direction,

wherein each of the openings has a first end and a second end in the extending direction, and

wherein the communicating part is arranged at a position closer to the first end than to the second end in the extending direction.

2. The display device according to claim 1 , wherein

respective ones of the openings include a corner part disposed at a point of intersection of the opening and the communicating part, and

the liquid crystal molecules from an end of the opening to the corner part in the extending direction are rotated in a same rotation direction.

3. The display device according to claim 1 , wherein an upper side part and a lower side part of the opening are displaced from each other in the width direction and arranged in a staggered form with the communicating part interposed between the upper side part and the lower side part of the opening.

4. The display device according to claim 1 , wherein the openings are divided into a first opening and a second opening in the extending direction with the communicating part as a boundary, and the first opening and the second opening are disposed so as to be displaced from each other in the width direction.

5. The display device according to claim 1 , wherein the openings have a rectangular shape.

6. The display device according to claim 1 , wherein the openings have a substantially rhombic shape.

7. A display device comprising:

an electrode including a plurality of openings, wherein

in a plan view perspective, each of the openings has a width extending in a width direction and a length extending in an extending direction, the length being greater than the width,

respective ones of the openings each have a first side and a second side that are opposed to each other in the width direction,

adjacent ones of the openings in the width direction have a communicating part in the width direction, and

each communicating part communicates the openings adjacent to each other in the width direction; and

a liquid crystal layer including liquid crystal molecules and disposed on the electrode,

wherein the openings adjacent to each other in the extending direction are displaced from each other in the width direction and arranged in a staggered form,

wherein, for a corresponding one of the openings, in the plan view perspective, respective ones of the liquid crystal molecules in a first region in proximity to the first side of the opening are aligned and rotated in a first direction, and respective ones of the liquid crystal molecules in a second region in proximity to the second side of the opening are aligned and rotated in a second direction that is opposite to the first direction,

wherein each of the openings has a first length that is the length extending in the extending direction,

wherein the communicating part has a second length in the extending direction, and

wherein the openings adjacent to each other in the extending direction are displaced from each other in the width direction and arranged in the staggered form such that the opening having the first length and the communicating part having the second length shorter than the first length are alternately arranged in the extending direction.

8. The display device according to claim 7 , wherein

respective ones of the openings include a corner part disposed at a point of intersection of the opening and the communicating part, and

the liquid crystal molecules from an end of the opening to the corner part in the extending direction are rotated in a same rotation direction.

9. The display device according to claim 7 , wherein an upper side part and a lower side part of the opening are displaced from each other in the width direction and arranged in a staggered form with the communicating part interposed between the upper side part and the lower side part of the opening.

10. The display device according to claim 7 , wherein the openings are divided into a first opening and a second opening in the extending direction with the communicating part as a boundary, and the first opening and the second opening are disposed so as to be displaced from each other in the width direction.

11. The display device according to claim 7 , wherein the openings have a rectangular shape.

12. The display device according to claim 7 , wherein the openings have a substantially rhombic shape.

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