IP Library Granted Patent US 10,133,125
Granted Patent B2
US 10,133,125 · App. 15/231,081 · Granted Nov 20, 2018

Liquid crystal display device

Inventors: Junichi Kobayashi (Nomi-gun, JP); Kazuyuki Harada (Nonoichi, JP)
Assignee: JAPAN DISPLAY INC.
G02F1/13394G02F1/1337G02F1/133512G02F1/133514G02F1/134309H01L27/124G02F1/1368G02F1/13306G02F1/13439G02F1/133345G02F1/134363G02F2001/133302G02F2001/134372G02F2201/121G02F2201/123
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Quick Facts
Patent No.
US 10,133,125
App. No.
15/231,081
Granted
Nov 20, 2018
Kind
B2
Abstract

According to one embodiment, a liquid crystal display device includes a first substrate including a common electrode, an insulation film, and a pixel electrode, and a second substrate including a black matrix which includes a first light-shield portion, a second light-shield portion and a third light-shield portion, a first crossing portion at which the first light-shield portion and the second light-shield intersect, a second crossing portion at which the first light-shield portion and the third light-shield portion intersect, and a columnar spacer extending from a position overlapping the first crossing portion toward the first substrate.

Claims (53)

1. A liquid crystal display device comprising:

a first source line;

a second source line adjacent to the first source line;

a third source line adjacent to the second source line;

a gate line crossing the first source line, the second source line and the third source lines;

a first light-shielding portion of a black matrix;

a first color filter between the first source line and the second source line;

a second color filter between the second source line and the third source line, the second color filter being adjacent to the first color filter; and

a spacer, wherein

the first light-shielding portion extends in a first direction and overlaps the gate line,

the first color filter comprises a first edge and a second edge,

the first edge and the second edge are arranged in the first direction,

a first part of the first edge extends in a second direction which obliquely crosses the first direction,

a second part of the first edge extends in a third direction which obliquely crosses the first direction and is different from the second direction,

the first part and the second part are connected at a first bent portion,

the first source line overlaps the first part, the second part, and the first bent portion,

a third part of the second edge extends in the second direction,

a fourth part of the second edge extends in the third direction,

the second edge has a protrusion between the third part and the fourth part,

the third part and the fourth part overlap the second source line,

a tip of the protrusion is located between the second source line and the third source line and protrudes toward the third source line beyond the second source line,

the spacer is located at the protrusion,

the spacer, the first bent portion, and the protrusion overlap the first light-shielding portion, and

the spacer does not overlap the second color filter.

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

the first bent portion protrudes toward a first side of the first direction, and

the protrusion protrudes toward a second side of the first direction.

3. The liquid crystal display device according to claim 2 , wherein

the third part and the protrusion are connected at a second bent portion, and

the fourth part and the protrusion are connected at a third bent portion,

and in a planar view,

the second bent portion and the third bent portion are located at the first side in the first direction,

the tip of the protrusion is located at the second side in the first direction, and

the second bent portion and the third bent portion are located between the first bent portion and the tip of the protrusion in the first direction.

4. The liquid crystal display device according to claim 3 , further comprising:

a second light-shielding portion adjacent to the first light-shielding portion in a direction intersecting the second direction;

a third light-shielding portion overlapping the second source line and connected to the first light-shielding portion and the second light-shielding portion; and

a fifth part of the second edge of the first color filter extending in the third direction, wherein

the fifth part and the third part overlap the third light-shielding portion, and

the fifth part and the third part are connected at a fifth bent portion.

5. The liquid crystal display device according to claim 4 , wherein

the fifth bent portion and the tip of the protrusion protrude toward the second side of the first direction.

6. The liquid crystal display device according to claim 5 , wherein

the spacer overlaps the second source line.

7. The liquid crystal display device according to claim 6 , wherein a width of the first color filter between the first bent portion and the tip of the protrusion is greater than a width of the first color filter between the first part and the third part in the first direction.

8. The liquid crystal display device according to claim 7 , wherein the protrusion has a trapezoidal shape.

9. The liquid crystal display device according to claim 1 , wherein a distance between the first bent portion and the spacer is longer than a distance between the spacer and the tip of the protrusion.

10. The liquid crystal display device according to claim 1 , wherein

the second color filter comprises a third edge and a fourth edge,

the third edge and the fourth edge are arranged in the first direction,

the third edge is in contact with the first color filter,

the fourth edge includes a fourth bent portion on the first light-shielding portion, and

a width of the first color filter between the first bent portion and the tip of the protrusion is greater than a width of the second color filter between the fourth bent portion and the tip of the protrusion in the first direction.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
Priority Claims (1)
JP 2011-141802 · Jun 27, 2011 · national
Continuity (2)
Continuation 13526739 · Jun 19, 2012
Related Publication 20160342004A1 · Nov 24, 2016