IP Library › Granted Patent US 9,488,870
Granted Patent B2
US 9,488,870 · App. 14/245,386 · Granted Nov 8, 2016

Liquid crystal display device and method of manufacturing the same

Inventor: Ayumi Mori (Minato-ku, JP)
Assignee: Japan Display Inc.
G02F1/1339G02F1/13394G02F1/133351G02F2001/13396G02F2001/133388
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Quick Facts
Patent No.
US 9,488,870
App. No.
14/245,386
Granted
Nov 8, 2016
Kind
B2
Abstract

A first organic insulating film is arranged in a circumference area outside an active area on a first substrate. A circumference color filter is arranged in the circumference area on a second substrate. A second organic insulating film covers the circumference color filter. A seal material is arranged between the first and second organic insulating films to attach the first substrate and the second substrate. The seal material extends up to a position in which end portions of the first and second substrates overlap. A first spacer is arranged between the first and second organic insulating films in the circumference area. The first spacer is arranged on an active area side in the seal material. A second spacer is formed between the first and second organic insulating films in a position in which the end portions of the substrates overlap.

Claims (41)

1. A liquid crystal display device, comprising:

a first substrate including;

a first insulating substrate, and

a first organic insulating film arranged on the first insulating substrate in a circumference area outside an active area for displaying images,

a second substrate including;

a second insulating substrate,

a circumference shield layer arranged on the second insulating substrate facing the first substrate in the circumference area,

a circumference color filter formed on the circumference shield layer in the circumference area, and

a second organic insulating film covering the circumference color filter,

a seal material arranged between the first organic insulating film and the second organic insulating film to attach the first substrate and the second substrate, the seal material extending up to a position in which a first substrate end of the first insulating substrate overlaps with a second substrate end of the second insulating substrate;

a first spacer arranged between the first organic insulating film and the second organic insulating film in the circumference area, the first spacer being arranged on an active area side in the seal material;

a second spacer formed in a position in which the first substrate end overlaps the second substrate end and arranged between the first organic insulating film and the second organic insulating film; and

a liquid crystal layer held in a gap surrounded with the seal material between the first substrate and the second substrate,

wherein the first substrate end, the second substrate end, a third end of the second spacer, and a fourth end of the seal material are located in a same plane, and

a fifth end of the first organic insulating film, a sixth end of the circumference shield layer, a seventh end of the circumference color filter, and an eighth end of the second organic insulating film are located in the same plane.

2. The liquid crystal display device according to claim 1 , wherein the first spacer is formed in a dot shape.

3. The liquid crystal display device according to claim 1 , wherein the second spacer is linearly formed along a position in which the first substrate end overlaps the second substrate end.

4. The liquid crystal display device according to claim 1 , wherein the seal material is arranged between the first organic insulating film and the second spacer or between the second organic insulating film and the second spacer.

5. The liquid crystal display device according to claim 1 , wherein the height of the first spacer is taller than the second spacer.

6. The liquid crystal display device according to claim 1 , wherein the first substrate includes a mounting portion arranged at one end of the first substrate for mounting a driving circuit.

7. The liquid crystal display device according to claim 1 , wherein the first and second organic insulating films are formed of transparent resin material.

8. A liquid crystal display device, comprising:

a first substrate including;

a first insulating substrate, and

a first organic insulating film arranged on the first insulating substrate in a circumference area outside an active area for displaying images,

a second substrate including;

a second insulating substrate,

a circumference shield layer arranged on the second insulating substrate facing the first substrate in the circumference area,

a circumference color filter formed on the circumference shield layer in the circumference area, and

a second organic insulating film covering the circumference color filter,

a seal material arranged between the first organic insulating film and the second organic insulating film to attach the first substrate and the second substrate, the seal material extending up to a position in which a first substrate end of the first insulating substrate overlaps with a second substrate end of the second insulating substrate;

a first spacer arranged between the first organic insulating film and the second organic insulating film in the circumference area, the first spacer being arranged on an active area side in the seal material;

a second spacer formed in a position in which the first substrate end and the second substrate end overlap and arranged between the first organic insulating film and the second organic insulating film; and

a liquid crystal layer held in a gap surrounded with the seal material between the first substrate and the second substrate, wherein

the first spacer is formed in a dot shape and the second spacer is linearly formed along a position in which the first substrate end overlaps the second substrate end,

the seal material is arranged between the first organic insulating film and the second spacer or between the second organic insulating film and the second spacer,

the height of the first spacer is taller than the height of the second spacer,

the first substrate includes a mounting portion arranged at one end of the first substrate for mounting a driving circuit,

the first and second organic insulating films are formed of transparent resin material,

the first substrate end, the second substrate end, a third end of the second spacer, and a fourth end of the seal material are located in a same plane, and

a fifth end of the first organic insulating film, a sixth end of the circumference shield layer, a seventh end of the circumference color filter, and an eighth end of the second organic insulating film are located in the same plane.

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 4, 2014
From: MORI, AYUMI
To: JAPAN DISPLAY INC.
Reel/Frame 032605/0824 →
Priority Claims (1)
JP 2013-081070 · Apr 9, 2013 · national
Continuity (1)
Related Publication 20140300848A1 · Oct 9, 2014