IP Library Granted Patent US 10,353,250
Granted Patent B2
US 10,353,250 · App. 15/683,335 · Granted Jul 16, 2019

Liquid crystal device and electronic apparatus

Inventors: Takao Atarashiya (Tottori, JP); Hayato Kurasawa (Matsumoto, JP)
Assignee: JAPAN DISPLAY INC.
G02F1/134363G02F1/1368G02F1/13439G02F1/133345G02F1/133512G02F2001/134345G02F2001/134372G02F2201/40
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Quick Facts
Patent No.
US 10,353,250
App. No.
15/683,335
Granted
Jul 16, 2019
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 (46)

1. A liquid crystal device comprising:

a first substrate and a second substrate opposing each other, the first substrate including a plurality of data lines and a plurality of scan lines which intersect each other;

a liquid crystal layer between the first and second substrates; and

a plurality of sub-pixels including at least a first sub-pixel and a second sub-pixel, wherein

the first sub-pixel includes a first upper electrode and a first lower electrode,

the second sub-pixel includes a second upper electrode and a second lower electrode,

the first upper electrode and the second upper electrode are disposed closer to the liquid crystal layer than the first lower electrode and the second lower electrode,

the plurality of data lines include at least a first data line and a second data line,

the first sub-pixel is surrounded by two data lines and two scan lines, the two data lines being adjacent to each other and including at least the first data line,

the second sub-pixel is surrounded by two data lines and two scan lines, the two data lines being adjacent to each other and including at least the second data line,

the first upper electrode includes a first slit, and the second upper electrode includes a second slit,

a center portion of the first slit extends along the first data line,

a center portion of the second slit extends along the second data line,

an end portion of the first slit in the first upper electrode for the first sub-pixel is bent in a direction different from a direction in which the first data line extends,

an end portion of the second slit in the second upper electrode for the second sub-pixel is bent in a direction different from a direction in which the second data line extends, and

a direction in which the first slit extends is different from a direction in which the second slit extends.

2. The liquid crystal device according to claim 1 , further comprising a light shielding film configured to overlap with at least one of the data lines or at least one of the scan lines which is at least bent in plan view, the light shielding film being provided on the second substrate,

wherein the light shielding film is configured to overlap with at least one of the first upper electrode and the second upper electrode which is bent in plan view.

3. The liquid crystal device according to claim 1 , wherein among a plurality of the slits arranged in a short-axis direction of the sub-pixels, the slit disposed at a region located close to one of the data lines has a width larger than a width of the slit disposed at a region located distant from the data line.

4. The liquid crystal device according to claim 1 wherein each of the plurality of data lines has a first portion and a second portion, and a first direction in which the first portion extends is opposite to a second direction in which the second portion extends with respect to an arrangement direction in which the scan lines are arranged.

5. The liquid crystal device according to claim 1 , wherein a direction in which the center portion of the first slit extends is different from a direction in which the center portion of the second slit extends.

6. A liquid crystal device comprising:

a first substrate and a second substrate opposing each other, the first substrate including a plurality of data lines and a plurality of scan lines which intersect each other;

a liquid crystal layer between the first and second substrates; and

a plurality of sub-pixels including at least a first sub-pixel and a second sub-pixel, wherein

the first sub-pixel includes a first upper electrode and a first lower electrode,

the second sub-pixel includes a second upper electrode and a second lower electrode,

the first upper electrode and the second upper electrode are disposed closer to the liquid crystal layer than the first lower electrode and the second lower electrode,

the plurality of data lines include at least a first data line and a second data line,

the first sub-pixel is surrounded by two data lines and two scan lines, the two data lines being adjacent to each other and including at least the first data line,

the second sub-pixel is surrounded by two data lines and two scan lines, the two data lines being adjacent to each other and including at least the second data line,

the first upper electrode includes first slits, and the second upper electrode includes second slits,

center portions of the first slits extend along the first data line,

center portions of the second slits extend along the second data line,

end portions of the first slits in the first upper electrode for the first sub-pixel are bent in a direction different from a direction in which the first data line extends,

end portions of the second slits in the second upper electrode for the second sub-pixel are bent in a direction different from a direction in which the second data line extends, and

a direction in which the first slits extend is different from a direction in which the second slits extend.

7. The liquid crystal device according to claim 6 , further comprising a light shielding film configured to overlap with at least one of the data lines or at least one of the scan lines which is at least bent in plan view, the light shielding film being provided on the second substrate,

wherein the light shielding film is configured to overlap with at least one of the first upper electrode and the second upper electrode which is bent in plan view.

8. The liquid crystal device according to claim 6 , wherein among a plurality of the slits arranged in a short-axis direction of the sub-pixels, the slit disposed at a region located close to one of the data lines has a width larger than a width of the slit disposed at a region located distant from the data line.

9. The liquid crystal device according to claim 6 , wherein each of the plurality of data lines has a first portion and a second portion, and a first direction in which the first portion extends is opposite to a second direction in which the second portion extends with respect to an arrangement direction in which the scan lines are arranged.

10. The liquid crystal device according to claim 6 , wherein a direction in which the center portions of the first slits extend is different from a direction in which the center portions of the second slits extend.

11. The liquid crystal device according to claim 1 , wherein the first upper electrode and the second upper electrode are pixel electrodes, and the first lower electrode and the second lower electrode are common electrodes.

12. The liquid crystal device according to claim 11 , wherein the first lower electrode and the second lower electrode are connected.

13. The liquid crystal device according to claim 1 , wherein the first upper electrode and the second upper electrode are common electrodes, and the first lower electrode and the second lower electrode are pixel electrodes.

14. The liquid crystal device according to claim 13 , wherein the first upper electrode and the second upper electrode are connected.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 4, 2017
From: ATARASHIYA, TAKAO; KURASAWA, HAYATO
To: EPSON IMAGING DEVICES CORPORATION
Reel/Frame 043780/0041 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 4, 2017
From: EPSON IMAGING DEVICES CORPORATION
To: SONY CORPORATION
Reel/Frame 043780/0080 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 4, 2017
From: SONY CORPORATION
To: JAPAN DISPLAY WEST INC.
Reel/Frame 043780/0112 →
CHANGE OF NAME Recorded Oct 4, 2017
From: JAPAN DISPLAY WEST INC.
To: JAPAN DISPLAY INC.
Reel/Frame 044129/0845 →
Priority Claims (2)
JP 2008-055867 · Mar 6, 2008 · national
JP 2009-009615 · Jan 20, 2009 · national
Continuity (4)
Continuation 15064169 · Mar 8, 2016
Continuation 14549189 · Nov 20, 2014
Continuation 12397408 · Mar 4, 2009
Related Publication 20170371214A1 · Dec 28, 2017
Cited By (1)
US 12,353,098