IP Library Patent Application 12869235
Patent Application
App. No. 12/869,235

LIQUID CRYSTAL DISPLAY DEVICE

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Quick Facts
Patent No.
US None
App. No.
12/869,235
Abstract

A liquid crystal display device includes a first substrate having pixel regions and a second substrate having color filters and a light shielding film, wherein a region where ends of the color filters adjacent to each other are not overlapped with each other is formed in a crossing region of a first light shielding film formed by overlapping the color filters and a second light shielding film formed of a black layer, and a spacer is formed in the non-overlapped region so as to stride over a boundary portion of the adjacent color filters.

Claims (46)

1 . A liquid crystal display device comprising:

a first substrate which has pixel regions each surrounded by drain lines and gate lines; and

a second substrate which is disposed to face the first substrate and on which color filters corresponding to pixels, a light shielding film, and a spacer maintaining the gap between the first substrate and the second substrate at a predetermined gap are formed, wherein

the light shielding film has a first light shielding film formed by overlapping the color filters and a second light shielding film formed of a black resin or a metal material,

the first light shielding film extends in a first direction, the second light shielding film extends in a second direction crossing the first light shielding film,

a region where ends of the color filters adjacent to each other are not overlapped with each other is formed in a crossing region of the first light shielding film and the second light shielding film, and

the spacer is disposed so as to stride over a boundary portion of the adjacent color filters in the region where the ends of the adjacent color filters are not overlapped with each other in the crossing region of the first light shielding film and the second light shielding film.

2 . A liquid crystal display device comprising:

a first substrate which has pixel regions each surrounded by drain lines and gate lines; and

a second substrate which is disposed to face the first substrate and on which color filters corresponding to pixels, a light shielding film, and a spacer maintaining the gap between the first substrate and the second substrate at a predetermined gap are formed, wherein

the light shielding film has a first light shielding film formed by overlapping the color filters adjacent to each other and a second light shielding film formed of a black resin or a metal material,

the first light shielding film extends in a first direction, the second light shielding film extends in a second direction crossing the first light shielding film,

a region where side surfaces of the adjacent color filters on the adjacent side are in contact with each other along the extending direction of the first light shielding film is provided in a crossing region of the first light shielding film and the second light shielding film, and

the spacer is formed above the color filters so as to stride over a boundary portion of the adjacent color filters in the region where the side surfaces are in contact with each other.

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

the light shielding film includes a first light shielding film extending in the extending direction of the drain line and arranged in parallel in the extending direction of the gate line and a second light shielding film extending in the extending direction of the gate line and arranged in parallel in the extending direction of the drain line.

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

the light shielding film includes a first light shielding film extending in the extending direction of the drain line and arranged in parallel in the extending direction of the gate line and a second light shielding film extending in the extending direction of the gate line and arranged in parallel in the extending direction of the drain line.

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

in the region where the ends of the adjacent color filters are not overlapped with each other, respective surfaces of the adjacent color filters at the ends are contained in an identical plane.

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

in the region where the ends of the adjacent color filters are not overlapped with each other, respective surfaces of the adjacent color filters at the ends are contained in an identical plane.

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

in the region where the ends of the adjacent color filters are not overlapped with each other, the adjacent color filters are formed so as not to generate unevenness at a boundary between the ends of the adjacent color filters.

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

in the region where the ends of the adjacent color filters are not overlapped with each other, the adjacent color filters are formed so as not to generate unevenness at a boundary between the ends of the adjacent color filters.

9 . The liquid crystal display device according to claim 7 , wherein

the region where the adjacent color filters are not overlapped with each other is smaller than the width of the second light shielding film.

10 . The liquid crystal display device according to claim 8 , wherein

the region where the adjacent color filters are not overlapped with each other is smaller than the width of the second light shielding film.

11 . The liquid crystal display device according to claim 9 , wherein

the region where the adjacent color filters are not overlapped with each other is larger than the width of the spacer.

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

the region where the adjacent color filters are not overlapped with each other is larger than the width of the spacer.

13 . The liquid crystal display device according to claim 11 , wherein

the color filters having the same color are formed in a stripe shape in the extending direction of the drain line, the first light shielding film is formed in the extending direction of the drain line, and the second light shielding film is formed in the extending direction of the gate line.

14 . The liquid crystal display device according to claim 12 , wherein

the color filters having the same color are formed in a stripe shape in the extending direction of the drain line, the first light shielding film is formed in the extending direction of the drain line, and the second light shielding film is formed in the extending direction of the gate line.

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

the color filters having the same color are formed in a stripe shape in the extending direction of the drain line, the first light shielding film is formed in the extending direction of the drain line, and the second light shielding film is formed in the extending direction of the gate line.

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

the color filters having the same color are formed in a stripe shape in the extending direction of the drain line, the first light shielding film is formed in the extending direction of the drain line, and the second light shielding film is formed in the extending direction of the gate line.

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

the region where the adjacent color filters are not overlapped with each other is larger than the width of the spacer.

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

the region where the adjacent color filters are not overlapped with each other is larger than the width of the spacer.

Assignments (3)
COMPANY SPLIT PLAN TRANSFERRING FIFTY (50) PERCENT SHARE IN PATENT APPLICATIONS Recorded Oct 20, 2011
From: HITACHI DISPLAYS, LTD.
To: IPS ALPHA SUPPORT CO., LTD.
Reel/Frame 027092/0684 →
MERGER Recorded Oct 20, 2011
From: IPS ALPHA SUPPORT CO., LTD.
To: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
Reel/Frame 027093/0937 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 26, 2010
From: SATO, TOSHIO
To: HITACHI DISPLAYS, LTD.
Reel/Frame 024893/0724 →