IP Library Granted Patent US 12,228,815
Granted Patent B2
US 12,228,815 · App. 18/739,479 · Granted Feb 18, 2025

Display device and color filter substrate

Inventors: Tetsuya Yamamoto (Tokyo, JP); Tatsuaki Kuji (Tokyo, JP); Satoru Kawasaki (Tokyo, JP)
Assignee: Japan Display Inc.
G02F1/133514G02F1/133512
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Quick Facts
Patent No.
US 12,228,815
App. No.
18/739,479
Granted
Feb 18, 2025
Kind
B2
Abstract

According to one embodiment, a display device includes a first substrate including a plurality of pixels, a second substrate opposed comprising a plurality of color filters and a light-shielding layer, and a liquid crystal layer. The plurality of pixels include a plurality of first pixels arranged in an oblique direction and a plurality of second pixels adjacent to each of the plurality of first pixels. The plurality of color filters include a first color filter extending in the oblique direction to overlap with the plurality of first pixels and a second color filter extending in the oblique direction to overlap with the plurality of second pixels. The light-shielding layer extends to overlap with a boundary portion between the first and second color filters.

Claims (33)

1. A display device comprising:

a first substrate comprising a plurality of pixels arranged in a matrix in a first direction and a second direction;

a second substrate opposed to the first substrate and comprising a plurality of color filters corresponding to the plurality of pixels and a light-shielding layer; and

a liquid crystal layer held between the first substrate and the second substrate, wherein

the plurality of pixels include a plurality of first pixels arranged in an oblique direction with respect to the first direction and the second direction and a plurality of second pixels adjacent to each of the plurality of first pixels in the first direction and arranged in the oblique direction,

the plurality of color filters include a first color filter configured to extend in the oblique direction to overlap with the plurality of first pixels and a second color filter configured to extend in the oblique direction to overlap with the plurality of second pixels, and

the light-shielding layer is configured to extend in the oblique direction to overlap with a boundary portion between the first color filter and the second color filter.

2. The display device of claim 1 , wherein

widths of the first and second color filters, which extends in the oblique direction, in a direction intersecting the oblique direction are constant.

3. The display device of claim 2 , wherein

the light-shielding layer is configured to overlap with a part of an aperture formed in each of the plurality of first pixels and a part of an aperture formed in each of the plurality of second pixels.

4. The display device of claim 1 , wherein

each of the plurality of pixels includes a pixel electrode arranged in the pixel and a switching element connected to the pixel electrode,

the first substrate comprises a scanning line configured to extend in the first direction to supply a scanning signal to the switching element, and

the light-shielding layer is configured to farther extend to overlap with the scanning line.

5. The display device of claim 1 , wherein

each of the plurality of pixels includes a pixel electrode arranged in the pixel and a switching element connected to the pixel electrode,

the first substrate comprises a signal line configured to extend in the second direction to supply a video signal to the switching element, and

the light-shielding layer is configured to farther extend to overlap with the signal line.

6. The display device of claim 1 , wherein

each of the plurality of pixels includes a pixel electrode arranged in the pixel and a switching element connected to the pixel electrode,

the first substrate comprises a scanning line configured to extend in the first direction to supply a scanning signal to the switching element and a signal line configured to extend in the second direction to supply a video signal to the switching element, and

the light-shielding layer is configured to farther extend to overlap with the scanning line and the signal line.

7. A color filter substrate for holding a liquid crystal layer between an array substrate comprising a plurality of pixels arranged in a matrix in a first direction and a second direction and the color filter substrate, the color filter substrate, comprising:

a plurality of color filters corresponding to the plurality of pixels; and

a light-shielding layer, wherein

the plurality of pixels include a plurality of first pixels arranged in an oblique direction with respect to the first direction and the second direction and a plurality of second pixels adjacent to each of the plurality of first pixels in the first direction and arranged in the oblique direction,

the plurality of color filters include a first color filter configured to extend in the oblique direction to overlap with the plurality of first pixels and a second color filter configured to extend in the oblique direction to overlap with the plurality of second pixels, and

the light-shielding layer is configured to extend in the oblique direction to overlap with a boundary portion between the first color filter and the second color filter.

8. The color filter substrate of claim 7 , wherein

a display area, in which the color filter substrate or the plurality of pixels are arranged, has a rectangular shape having a first side along the first direction and a second side along the second direction.

9. The color filter substrate of claim 7 , wherein

a display area, in which the color filter substrate or the plurality of pixels are arranged, has a polygonal shape at least having a side along a direction intersecting the first direction and the second direction.

Assignments (2)
CHANGE OF NAME Recorded Aug 27, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 073057/0042 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 11, 2024
From: YAMAMOTO, TETSUYA; KUJI, TATSUAKI; KAWASAKI, SATORU
To: JAPAN DISPLAY INC.
Reel/Frame 067688/0734 →
Priority Claims (1)
JP 2023-101722 · Jun 21, 2023 · national
Continuity (1)
Related Publication 20240427187A1 · Dec 26, 2024
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