IP Library Granted Patent US 9,954,198
Granted Patent B2
US 9,954,198 · App. 15/136,430 · Granted Apr 24, 2018

Display device

Inventors: Toshihiro Sato (Tokyo, JP); Tetsuya Nagata (Tokyo, JP); Tohru Sasaki (Tokyo, JP)
Assignee: Japan Display Inc.
H01L51/5246G02F1/1339H01L27/15H01L27/3244H01L51/52H01L51/525H01L27/322H01L27/3276
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Quick Facts
Patent No.
US 9,954,198
App. No.
15/136,430
Granted
Apr 24, 2018
Kind
B2
Abstract

A display device includes a circuit substrate that is formed of a plurality of layers including a light control element; a counter substrate that faces a surface of the circuit substrate on which the light control element is disposed, with a gap therebetween; a seal that is disposed between the circuit substrate and the counter substrate to surround the light control element; and a filler with which a sealed space surrounded by at least the circuit substrate, the counter substrate, and a sealing surface of the seal is filled. The sealing surface includes internal angle corner surfaces formed by an inner surface of the seal, and a convex surface formed adjacent to the corner surfaces from at least one of the circuit substrate, the counter substrate, and the seal.

Claims (18)

1. A display device comprising:

a circuit substrate including a display area;

a counter substrate facing a surface of the circuit substrate on which the display area is located, with a gap therebetween;

a seal between the circuit substrate and the counter substrate which surrounds the display area, and has an inner surface facing the display area; and

a filler filling a region surrounded by the circuit substrate, the counter substrate and the inner surface of the seal, wherein

the inner surface has a first side and a second side that are adjacent to each other, and has an inner angle between the first side and the second side in plan view as seen in a direction perpendicular to the surface of the circuit substrate, and

the inner angle is smaller than 90 degrees.

2. A display device comprising:

a circuit substrate including a display area; a counter substrate facing a surface of the circuit substrate on which the display area is located, with a gap therebetween; a seal between the circuit substrate and the counter substrate which surrounds the display area, and has an inner surface facing the display area; and a filler filling a region surrounded by the circuit substrate, the counter substrate and the inner surface of the seal, wherein the seal has a protruding portion which protrudes from the inner surface, the inner surface has a first side and a second side that are adjacent to each other, and has an inner angle between the first side and the second side, one of the first side and the second side is along the protruding portion, and the inner angle is equal to or smaller than 90 degrees.

3. The display device according to claim 1 , wherein

the seal has a protruding portion which protrudes from the inner surface, and

one of the first side and the second side is along the protruding portion.

4. The display device according to claim 2 , wherein

the seal has an outer surface opposite to the inner surface, and

a width between the outer surface and the inner surface including the protruding portion is equal to or greater than another width between the outer surface and the inner surface excluding the protruding portion.

5. The display device according to claim 3 , wherein

the seal has an outer surface opposite to the inner surface, and

a width between the outer surface and the inner surface including the protruding portion is equal to or greater than another width between the outer surface and the inner surface excluding the protruding portion.

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 2012-254120 · Nov 20, 2012 · national
Continuity (2)
Continuation 14071949 · Nov 5, 2013
Related Publication 20160240814A1 · Aug 18, 2016