IP Library › Granted Patent US 12,306,502
Granted Patent B2
US 12,306,502 · App. 18/508,876 · Granted May 20, 2025

Display device

Inventors: Yoshihiro Sakurai (Kanagawa, JP); Hironao Tanaka (Kanagawa, JP); Hidemasa Yamaguchi (Kanagawa, JP)
Assignee: Japan Display Inc.
G02F1/134363G02F1/13306G02F1/1337G02F1/133707G02F1/136286G02F1/1368G02F1/13373G02F1/134381G02F1/136227G02F2201/122G02F2201/123G02F2201/128
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Quick Facts
Patent No.
US 12,306,502
App. No.
18/508,876
Granted
May 20, 2025
Kind
B2
Abstract

A display device is provided and includes first and second substrates; a liquid crystal layer filled between the first and second substrates; a counter electrode pattern formed on the first substrate; scanning lines extending in a first direction; signal lines; and a first pixel electrode pattern and a second pixel electrode pattern formed on the first substrate, wherein the first pixel electrode pattern and the second pixel electrode pattern are located in line symmetry with respect to a first scanning line of the scanning lines.

Claims (94)

1. A display device comprising:

a first pixel with a first electrode;

a second pixel with a second electrode;

a first scanning line between the first pixel and the second pixel;

a second scanning line, the first pixel being located between the first scanning line and the second scanning line; and

a third scanning line, the second pixel being located between the first scanning line and the third scanning line,

wherein

the first pixel electrode includes a first slit that has a closed shape and a first contact hole,

the second pixel electrode includes a second slit that has a closed shape and a second contact hole,

the first slit has:

a first end at a first scanning line side; and

a second end at a second scanning line side;

the second slit has:

a third end at the first scanning line side; and

a fourth end at the third scanning line side;

the second end of the first slit that has the closed shape does not overlap the second scanning line in a planar view,

the first contact hole is not located between the second end and the second scanning line, and

the second contact hole is not located between the third end and the first scanning line.

2. The display device according to claim 1 , wherein the first end overlaps the first scanning line in a planar view.

3. The display device according to claim 1 , wherein the third end of the second slit that has the closed shape does not overlap the first scanning line in a planar view.

4. The display device according to claim 1 , wherein the fourth end overlaps the third scanning line in a planar view.

5. The display device according to claim 1 , wherein

a direction from the first end to the second end is a first direction,

a direction from the third end to the fourth end is a second direction,

the first pixel and the second pixel are arranged in a third direction,

the first direction is inclined at a first angle relative to the third direction,

the second direction is inclined at a second angle relative to the third direction, and

the second angle is an opposite direction of the first angle.

6. The display device according to claim 1 , wherein the first slit bends between the first end and the second end.

7. The display device according to claim 6 , wherein the second slit bends between the third end and the fourth end.

8. The display device according to claim 1 , wherein the first and second pixel electrodes have a vertical mirror structure with respect to the first scanning line.

9. The display device according to claim 1 , wherein

the first pixel electrode includes a plurality of first slits including the first slit,

the second pixel electrode includes a plurality of second slits including the second slit,

none of the first slits overlap any scanning line at the second end in a planar view, and

all of the second slits overlap the third scanning line at the fourth end in a planar view.

10. A display device comprising:

a first pixel with a first electrode;

a second pixel with a second electrode;

a first scanning line between the first pixel and the second pixel;

a second scanning line, the first pixel being located between the first scanning line and the second scanning line; and

a third scanning line, the second pixel being located between the first scanning line and the third scanning line,

wherein

the first pixel electrode includes a first slit that has a closed shape and a first contact hole,

the second pixel electrode includes a second slit that has a closed shape and a second contact hole,

the first slit has:

a first end at a first scanning line side; and

a second end at a second scanning line side;

the first end overlaps the first scanning line in a planar view,

the second end of the first slit that has the closed shape does not overlap the second scanning line in a planar view, and

the first contact hole is not located between the second end and the second scanning line.

11. The display device according to claim 10 , wherein

the second slit has:

a third end at the first scanning line side; and

a fourth end at the third scanning line side, and

the second contact hole is not located between the third end and the first scanning line.

12. The display device according to claim 11 , wherein

the third end of the second slit that has the closed shape does not overlap the first scanning line in a planar view, and

the fourth end overlaps the third scanning line in the planar view.

13. The display device according to claim 10 , wherein the first slit bends between the first end and the second end.

14. The display device according to claim 10 , wherein the first and second pixel electrodes have a vertical mirror structure with respect to the first scanning line.

15. A display device comprising:

a first pixel with a first electrode;

a second pixel with a second electrode;

a first scanning line between the first pixel and the second pixel;

a second scanning line, the first pixel being located between the first scanning line and the second scanning line; and

a third scanning line, the second pixel being located between the first scanning line and the third scanning line,

wherein

the first pixel electrode includes a first slit that has a closed shape,

the second pixel electrode includes a second slit that has a closed shape,

the first slit has:

a first end at a first scanning line side; and

a second end at a second scanning line side,

the second slit has:

a third end at the first scanning line side; and

a fourth end at the third scanning line side,

the first end overlaps the first scanning line in a planar view,

the second end of the first slit that has the closed shape does not overlap the second scanning line in the planar view,

a direction from the first end to the second end is a first direction,

a direction from the third end to the fourth end is a second direction,

the first pixel and the second pixel are arranged in a third direction,

the first direction is inclined at a first angle relative to the third direction,

the second direction is inclined at a second angle relative to the third direction, and

the second angle is an opposite direction of the first angle.

16. The display device according to claim 15 , wherein

the first pixel electrode includes a first contact hole,

the second pixel electrode includes a second contact hole,

the first contact hole is not located between the second end and the second scanning line, and

the second contact hole is not located between the third end and the first scanning line.

17. The display device according to claim 15 , wherein

the third end of the second slit that has the closed shape does not overlap the first scanning line in the planar view, and

the fourth end overlaps the third scanning line in the planar view.

18. The display device according to claim 15 , wherein the first slit bends between the first end and the second end.

19. The display device according to claim 15 , wherein the first and second pixel electrodes have a vertical mirror structure with respect to the first scanning line.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 30, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 071875/0594 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 15, 2023
From: SAKURAI, YOSHIHIRO; TANAKA, HIRONAO; YAMAGUCHI, HIDEMASA
To: SONY CORPORATION
Reel/Frame 065573/0782 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 15, 2023
From: SONY CORPORATION
To: JAPAN DISPLAY WEST INC.
Reel/Frame 065574/0023 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 15, 2023
From: JAPAN DISPLAY WEST INC.
To: JAPAN DISPLAY INC.
Reel/Frame 065595/0669 →
Priority Claims (1)
JP 2008-324779 · Dec 19, 2008 · national
Continuity (6)
Continuation 18094558 · Jan 9, 2023
Continuation 16586169 · Sep 27, 2019
Continuation 15387141 · Dec 21, 2016
Continuation 14919047 · Oct 21, 2015
Continuation 12642312 · Dec 18, 2009
Related Publication 20240085745A1 · Mar 14, 2024
References Cited (45)
US 6233034B1 · Lee et al. · 2001 [cited by applicant]
US 6522380B2 · Lee et al. · 2003 [cited by applicant]
US 8421986B2 · Chen et al. · 2013 [cited by applicant]
US 9195102B2 · Sakurai et al. · 2015 [cited by applicant]
US 9551909B2 · Sakurai et al. · 2017 [cited by applicant]
US 20010046020A1 · Cho · 2001 [cited by examiner]
US 20020180919A1 · Maeda · 2002 [cited by examiner]
US 20030142260A1 · Asai et al. · 2003 [cited by applicant]
US 20030202146A1 · Sasaki et al. · 2003 [cited by applicant]
US 20050225708A1 · Oke et al. · 2005 [cited by applicant]
US 20060103637A1 · Yamaguchi · 2006 [cited by applicant]
US 20060170846A1 · Ozawa · 2006 [cited by applicant]
US 20070153204A1 · Kim et al. · 2007 [cited by applicant]
US 20080068549A1 · Liao et al. · 2008 [cited by applicant]
US 20080084528A1 · Lu et al. · 2008 [cited by applicant]
US 20080143912A1 · Kim · 2008 [cited by applicant]
US 20080143939A1 · Adachi et al. · 2008 [cited by applicant]
US 20080204614A1 · Aota · 2008 [cited by applicant]
US 20080204648A1 · Tanaka et al. · 2008 [cited by applicant]
US 20080284965A1 · Ryu et al. · 2008 [cited by applicant]
US 20090128727A1 · Yata · 2009 [cited by applicant]
US 20090201455A1 · Murai · 2009 [cited by applicant]
US 20090213290A1 · Ochiai · 2009 [cited by examiner]
US 20100207862A1 · Xu et al. · 2010 [cited by applicant]
US 20170038655A1 · Cheng et al. · 2017 [cited by applicant]
US 20230161204A1 · Sakurai et al. · 2023 [cited by applicant]
US 20240085745A1 · Sakurai · 2024 [cited by examiner]
CN 1435720A · 2003 [cited by applicant]
CN 1991548A · 2007 [cited by applicant]
JP H10123482A · 1998 [cited by applicant]
JP H11202356A · 1999 [cited by applicant]
JP 2000356786A · 2000 [cited by applicant]
JP 2002122876A · 2002 [cited by applicant]
JP 2005196162A · 2005 [cited by applicant]
JP 2008151817A · 2008 [cited by applicant]
JP 2010026287A · 2010 [cited by applicant]
JP 2010101946A · 2010 [cited by applicant]
KR 20060089132A · 2006 [cited by applicant]
KR 20070023997A · 2007 [cited by applicant]
KR 20080079208A · 2008 [cited by applicant]
TW 200923523A · 2009 [cited by applicant]
WO 0118597A1 · 2001 [cited by applicant]
WO 2008038432A1 · 2008 [cited by applicant]
Japanese Office Action issued Dec. 14, 2010, in corresponding Japanese Application No. 2008-324779. [cited by applicant]
Korean Office Action issued Dec. 21, 2015 in corresponding Korean Application No. 10-2009-0110817. [cited by applicant]