IP Library Patent Application 16944541
Patent Application
App. No. 16/944,541

LIQUID CRYSTAL DISPLAY

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Quick Facts
Patent No.
US None
App. No.
16/944,541
Abstract

An array substrate and an opposing substrate of a liquid crystal display are disposed to oppose each other to sandwich a liquid crystal. An alignment film is disposed over the first main surface of the array substrate to align the liquid crystal. A spacer is disposed between the array substrate and the opposing substrate. The spacer includes a base and a spacer body. The base is disposed over the first main surface of the array substrate. The spacer body is disposed over the second main surface of the opposing substrate. A top portion of the spacer body is in contact with the base. A height of the spacer body is compressed by being subjected to stress in a direction to move the array substrate and the opposing substrate towards each other. The base has a height greater than an amount of compression of the height of the spacer body.

Claims (40)

1 . A liquid crystal display comprising:

an array substrate and an opposing substrate disposed to oppose each other to sandwich a liquid crystal; and

a spacer disposed between a first main surface of the array substrate and a second main surface of the opposing substrate to maintain a predetermined cell gap between the array substrate and the opposing substrate, wherein

the array substrate includes

an alignment film disposed over the first main surface to align the liquid crystal in a predetermined alignment processing direction,

the spacer includes:

a base disposed over the first main surface of the array substrate; and

a spacer body disposed over the second main surface of the opposing substrate, a top portion of the spacer body being in contact with the base, a height of the spacer body being compressed by being subjected to stress in a direction to move the array substrate and the opposing substrate towards each other, and

the base has a height greater than an amount of compression of the height of the spacer body.

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

the array substrate includes:

a plurality of first wires extending in a first direction over the first main surface, and arranged at predetermined intervals; and

a plurality of second wires extending in a second direction over the first main surface, and arranged at predetermined intervals,

the plurality of first wires and the plurality of second wires form a plurality of pixels arranged in a matrix to correspond to intersections of the plurality of first wires and the plurality of second wires,

the spacer is disposed outside an opening as a light transmissive region in at least one of the plurality of pixels, and

the alignment film is disposed in the opening.

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

the spacer is disposed on a side of one of the plurality of first wires connected to a transistor disposed in the at least one pixel having the opening, and

the predetermined alignment processing direction of the alignment film in the opening corresponds to the first direction.

4 . The liquid crystal display according to claim 1 , wherein

the spacer further includes a sub-spacer body having a smaller height than the spacer body, and not being in contact with the base.

5 . The liquid crystal display according to claim 2 , wherein

the base has a contact surface in contact with the top portion of the spacer body, and

the contact surface slopes such that a height of the base from the first main surface of the array substrate increases with decreasing distance to the opening.

6 . The liquid crystal display according to claim 2 , wherein

the base has a contact surface in contact with the top portion of the spacer body, and

the contact surface is recessed such that a height of the base from the first main surface of the array substrate increases with decreasing distance to the opening.

7 . The liquid crystal display according to claim 2 , wherein

the array substrate further includes a planarization film to cover the plurality of first wires and the plurality of second wires, and

the base and the alignment film are disposed on the planarization film.

8 . The liquid crystal display according to claim 2 , wherein

the spacer is disposed on a side of one of the plurality of first wires connected to a transistor disposed in the at least one pixel having the opening,

the opening has a first transmissive region and a second transmissive region,

the first transmissive region is disposed closer to the spacer than the second transmissive region is,

the predetermined alignment processing direction of the alignment film in the first transmissive region corresponds to the second direction, and

the predetermined alignment processing direction of the alignment film in the second transmissive region corresponds to the first direction.

9 . The liquid crystal display according to claim 2 , wherein

the array substrate and the opposing substrate are elongated in the first direction.

10 . The liquid crystal display according to claim 9 , wherein

the array substrate and the opposing substrate are curved in the first direction.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 15, 2021
From: MITSUBISHI ELECTRIC CORPORATION
To: TRIVALE TECHNOLOGIES
Reel/Frame 057651/0234 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 31, 2020
From: KUDO, YUKIHIRO; UMEDA, HIROSHI
To: MITSUBISHI ELECTRIC CORPORATION
Reel/Frame 053367/0790 →