IP Library Granted Patent US 12,353,098
Granted Patent B2
US 12,353,098 · App. 18/499,832 · Granted Jul 8, 2025

Liquid crystal device and electronic apparatus

Inventors: Takao Atarashiya (Tokyo, JP); Hayato Kurasawa (Tokyo, JP)
Assignee: Japan Display Inc.
G02F1/134363G02F1/133345G02F1/133512G02F1/13439G02F1/1368G02F1/134345G02F1/134372G02F2201/40
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Quick Facts
Patent No.
US 12,353,098
App. No.
18/499,832
Granted
Jul 8, 2025
Kind
B2
Abstract

A liquid crystal includes first and second substrates, the first substrate including intersecting data lines and scan lines. A liquid crystal layer is sandwiched therebetween. Also, a plurality of sub-pixels districted by data lines and gate lines, and arranged along the long-axis and the short-axis directions in a matrix. A pixel electrode in the sub-pixels includes a central portion. A common electrode including linear electrodes arranged along the data lines and disposed with gaps therebetween. Sub-pixels are bent at the center portion, such that the linear electrodes or the gaps in both sides of the sub-pixels are inclined in opposite directions with respect to the long-axis direction. At least one of the linear electrodes or at least one of the gaps has a bent portion at the central portion of the respective pixel electrode. The common electrode is provided on liquid crystal layer side over the pixel electrode.

Claims (43)

1. A liquid crystal device, comprising:

a first substrate and a second substrate that are disposed to face each other, the first substrate including a plurality of data lines and a plurality of scan lines intersecting the data lines;

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

a first electrode that is provided on a liquid crystal layer side of the first substrate;

an insulating layer that is provided on the liquid crystal layer side of the first electrode; and

a second electrode that is provided on the liquid crystal layer side of the insulating layer,

wherein:

sub-pixels are formed at regions surrounded by the data lines and the scan lines,

the second electrode has a plurality of gaps,

the plurality of gaps have a first bent portion, a second bent portion, a third bent portion, a fourth bent portion, a first linear portion, and a second linear portion, and the gaps include a first gap and a second gap, the first gap having the first bent portion, the third bent portion, and the first linear portion, and the second gap having the second bent portion, the fourth bent portion, and the second linear portion,

the first bent portion is connected to one end of the first linear portion, the third bent portion is connected to another end of the first linear portion, the second bent portion is connected to one end of the second linear portion, the fourth bent portion is connected to another end of the second linear portion,

the first bent portion and the third bent portion are inclined with respect to the first linear portion,

the second bent portion and the fourth bent portion are inclined with respect to the second linear portion,

the first bent portion faces the second bent portion in a long-axis direction of the sub-pixels,

the first linear portion extends from the first bent portion in a first direction,

the second linear portion extends from the second bent portion in a second direction different from the first direction,

the plurality of gaps is surrounded by an outermost material of the second electrode, the outermost material of the second electrode is one continuous material,

an end of the third bent portion faces one of the scan lines, and an end of the fourth bent portion faces another one of the scan lines adjacent to the one of the scan lines, and

the end of the third bent portion is closed with the second electrode, and the end of the fourth bent portion is closed with the second electrode.

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

the second electrode has linear electrodes with the gaps therebetween, and

each of the linear electrodes is linearly symmetric about a short-axis direction of the sub-pixels.

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

the second electrode has linear electrodes with the gaps therebetween,

two adjacent linear electrodes included in the linear electrodes each include a bent portion, and

a region disposed between the bent portions of the two linear electrodes in a short-axis direction of the sub-pixels is one of the gaps that is between the two adjacent linear electrodes.

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

the second electrode has linear electrodes with the gaps therebetween,

two adjacent linear electrodes included in the linear electrodes each include a bent portion, and

a connection portion is provided to a region disposed between bent portions of the two linear electrodes in a short-axis direction of the sub-pixels so as to connect the two adjacent linear electrodes with each other.

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

the second electrode has linear electrodes with the gaps therebetween,

the data lines or the scan lines extend in the first direction and are bent in the first direction in plan view, and

among the linear electrodes and the gaps alternately arranged in a short-axis direction of the sub-pixels, the linear electrode and the gap disposed at a region located close to one of the bent data lines or one of the bent scan lines respectively have widths larger than widths of the linear electrode and the gap disposed at a region located distant from the bent data line or the bent scan line.

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

the second electrode has linear electrodes with the gaps therebetween,

the data lines or the scan lines extend in the first direction and are bent in the first direction in plan view, and

among the linear electrodes arranged in a short-axis direction of the sub-pixels, the linear electrode disposed at a region located close to one of the bent data lines or one of the bent scan lines has a width larger than a width of the linear electrode disposed at a region located distant from the bent data line or the bent scan line.

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

the data lines or the scan lines extend in the first direction and are bent in the first direction in plan view, and

among the gaps arranged in a short-axis direction of the sub-pixels, the gap disposed at a region located close to one of the bent data lines or one of the bent scan lines has a width larger than a width of the gap disposed at a region located distant from the bent data line or the bent scan line.

8. The liquid crystal device according to claim 1 , wherein a light shielding film is arranged to extend in parallel with the gaps.

9. The liquid crystal device according to claim 8 , wherein the light shielding film is formed so as not to overlap with the gaps.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 2, 2023
From: ATARASHIYA, TAKAO; KURASAWA, HAYATO
To: EPSON IMAGING DEVICES CORPORATION
Reel/Frame 065437/0839 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 2, 2023
From: EPSON IMAGING DEVICES CORPORATION
To: SONY CORPORATION
Reel/Frame 065437/0868 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 2, 2023
From: SONY CORPORATION
To: JAPAN DISPLAY WEST INC.
Reel/Frame 065437/0905 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 2, 2023
From: JAPAN DISPLAY WEST INC.
To: JAPAN DISPLAY INC.
Reel/Frame 065445/0459 →
Priority Claims (2)
JP 2008-055867 · Mar 6, 2008 · national
JP 2009-009615 · Jan 20, 2009 · national
Continuity (7)
Continuation 17459439 · Aug 27, 2021
Continuation 16509206 · Jul 11, 2019
Continuation 15683335 · Aug 22, 2017
Continuation 15064169 · Mar 8, 2016
Continuation 14549189 · Nov 20, 2014
Continuation 12397408 · Mar 4, 2009
Related Publication 20240061294A1 · Feb 22, 2024
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