IP Library Granted Patent US 10,831,069
Granted Patent B2
US 10,831,069 · App. 15/947,324 · Granted Nov 10, 2020

Display device

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Quick Facts
Patent No.
US 10,831,069
App. No.
15/947,324
Granted
Nov 10, 2020
Kind
B2
Abstract

According to one embodiment, a display device comprises a first A spacer, a second A spacer, a third A spacer and a fourth A spacer. The first A spacer and the third A spacer are on a first substrate. The second A spacer and the fourth A spacer are on a second substrate. At least one of the first and second substrates is a flexible substrate. The first A spacer and the second A spacer are aligned in a first direction. The third A spacer and the fourth A spacer are aligned in a second direction. Side surfaces of the first A spacer and the second A spacer face in the first direction. Side surfaces of the third A spacer and the fourth A spacer face in the second direction.

Claims (108)

1. A display device, comprising:

scanning signal lines;

video signal lines intersecting the scanning signal lines;

a first A spacer and a third A spacer on a first substrate; and

a second A spacer and a fourth A spacer on a second substrate opposed to the first substrate,

at least one of the first substrate and the second substrate being a flexible substrate,

the first A spacer and the second A spacer being aligned in a first direction in planar view,

the third A spacer and the fourth A spacer being aligned in a second direction intersecting the first direction in planar view,

side surfaces of the first A spacer and the second A spacer facing in the first direction,

side surfaces of the third A spacer and the fourth A spacer facing in the second direction, wherein

one of the first A spacer and the second A spacer is in contact with a substrate on which the other of the first A spacer and the second A spacer is disposed,

the other of the first A spacer and the second A spacer is not in contact with a substrate on which the one of the first A spacer and the second A spacer is disposed,

a pair of the first A spacer and the second A spacer facing each other are disposed at a position corresponding to an intersection area in which the scanning signal lines and the video signal lines intersect, and

a pair of the third A spacer and the fourth A spacer facing each other are disposed at a position corresponding to the intersection area.

2. The display device of claim 1 , further comprising:

a first B spacer on the first substrate; and

a second B spacer on the second substrate,

wherein

the first B spacer and the second B spacer are aligned in the first direction in planar view,

the first direction includes a first A direction and a first B direction opposite to the first A direction,

the first A spacer is aligned in the first A direction with respect to the second A spacer, and

the first B spacer is aligned in the first B direction with respect to the second B spacer.

3. The display device of claim 1 , further comprising:

a third B spacer on the first substrate; and

a fourth B spacer on the second substrate,

wherein

the third B spacer and the fourth B spacer are aligned in the second direction in planar view,

the second direction includes a second A direction and a second B direction opposite to the second A direction,

the third A spacer is aligned in the second A direction with respect to the fourth A spacer, and

the third B spacer is aligned in the second B direction with respect to the fourth B spacer.

4. The display device of claim 1 , wherein

the first A spacer and the second A spacer do not overlap.

5. The display device of claim 2 , wherein

in the first substrate, an end area in the first A direction and an end area in the first B direction are curved, and

if a pair of the first A spacer and the second A spacer facing each other are set as a first set and if a pair of the first B spacer and the second B spacer facing each other are set as a third set, density of the third set is higher than density of the first set in the end area in the first A direction, and the density of the first set is higher than the density of the third set in the end area in the first B direction.

6. The display device of claim 2 , wherein

in the first substrate, an end area in the first B direction is curved, and

if a pair of the first A spacer and the second A spacer facing each other are set as a first set, density of the first set is higher in the end area in the first B direction than a central area.

7. The display device of claim 1 , wherein

the scanning signal lines extend in the first direction, and

if a pair of the first A spacer and the second A spacer facing each other are set as a first set and if a pair of the third A spacer and the fourth A spacer facing each other are set as a second set, density of the first set is higher than density of the second set.

8. The display device of claim 1 , wherein

the first substrate comprises the scanning signal lines, the video signal lines, and a pixel electrode in a display area,

the first direction is a direction of extension of the scanning signal lines,

the second direction is a direction of extension of the video signal lines, and

a direction of extension of the pixel electrode is inclined to the direction of extension of the video signal lines.

9. The display device of claim 1 , further comprising:

a fifth spacer on the first substrate; and

a sixth spacer on the second substrate,

wherein

the fifth spacer and the sixth spacer are aligned in the first direction in planar view,

the fifth spacer is not in contact with the second substrate, and

the sixth spacer is not in contact with the first substrate.

10. A display device, comprising:

scanning signal lines;

video signal lines intersecting the scanning signal lines;

a first A spacer and a third A spacer on a first substrate; and

a second A spacer and a fourth A spacer on a second substrate opposed to the first substrate,

the first A spacer and the second A spacer not overlapping,

the first A spacer and the second A spacer being aligned in a first direction in planar view,

the third A spacer and the fourth A spacer being aligned in a second direction intersecting the first direction in planar view,

side surfaces of the first A spacer and the second A spacer facing in the first direction,

side surfaces of the third A spacer and the fourth A spacer facing in the second direction, wherein

one of the first A spacer and the second A spacer is in contact with a substrate on which the other of the first A spacer and the second A spacer is disposed,

the other of the first A spacer and the second A spacer is not in contact with a substrate on which the one of the first A spacer and the second A spacer is disposed,

a pair of the first A spacer and the second A spacer facing each other are disposed at a position corresponding to an intersection area in which the scanning signal lines and the video signal lines intersect, and

a pair of the third A spacer and the fourth A spacer facing each other are disposed at a position corresponding to the intersection area.

11. The display device of claim 10 , wherein

the scanning signal lines extend in the first direction, and

if a pair of the first A spacer and the second A spacer facing each other are set as a first set and if a pair of the third A spacer and the fourth A spacer facing each other are set as a second set, density of the first set is higher than density of the second set.

12. The display device of claim 10 , wherein

the first substrate comprises the scanning signal lines, the video signal lines, and a pixel electrode in a display area,

the first direction is a direction of extension of the scanning signal line,

the second direction is a direction of extension of the video signal lines, and

a direction of extension of the pixel electrode is inclined to the direction of extension of the video signal lines.

13. The display device of claim 10 , further comprising:

a fifth spacer on the first substrate; and

a sixth spacer on the second substrate,

wherein

the fifth spacer and the sixth spacer are aligned in the first direction in planar view,

the fifth spacer is not in contact with the second substrate, and

the sixth spacer is not in contact with the first substrate.

14. A display device, comprising:

scanning signal lines;

video signal lines intersecting the scanning signal lines;

a first A spacer and a third A spacer on a first substrate;

a second A spacer and a fourth A spacer on a second substrate opposed to the first substrate; and

a transparent conductive film on the first substrate,

the first A spacer and the second A spacer not overlapping,

the first A spacer and the second A spacer being aligned in a first direction in planar view,

the third A spacer and the fourth A spacer being aligned in a second direction intersecting the first direction in planar view,

side surfaces of the first A spacer and the second A spacer facing in the first direction,

side surfaces of the third A spacer and the fourth A spacer facing in the second direction,

the first A spacer and the third A spacer being in contact with the transparent conductive film, wherein

one of the first A spacer and the second A spacer is in contact with a substrate on which the other of the first A spacer and the second A spacer is disposed, and

the other of the first A spacer and the second A spacer is not in contact with a substrate on which the one of the first A spacer and the second A spacer is disposed,

a pair of the first A spacer and the second A spacer facing each other are disposed at a position corresponding to an intersection area in which the scanning signal lines and the video signal lines intersect, and

a pair of the third A spacer and the fourth A spacer facing each other are disposed at a position corresponding to the intersection area.

15. The display device of claim 14 , wherein

the scanning signal lines extend in the first direction, and

if a pair of the first A spacer and the second A spacer facing each other are set as a first set and if a pair of the third A spacer and the fourth A spacer facing each other are set as a second set, density of the first set is higher than density of the second set.

16. The display device of claim 14 , further comprising:

a fifth spacer on the first substrate; and

a sixth spacer on the second substrate,

wherein

the fifth spacer and the sixth spacer are aligned in the first direction in planar view,

the fifth spacer is not in contact with the second substrate, and

the sixth spacer is not in contact with the first substrate.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 6, 2018
From: OKITA, MITSUTAKA
To: JAPAN DISPLAY INC.
Reel/Frame 045462/0621 →