IP Library Granted Patent US 9,651,830
Granted Patent B2
US 9,651,830 · App. 15/182,254 · Granted May 16, 2017

Liquid crystal display device

Inventor: Atsuko Oono (Saitama-ken, JP)
Assignee: Japan Display Inc.
G02F1/1339G02F1/1337G02F1/1368G02F1/13394G02F1/13439G02F1/133345G02F1/133512G02F1/133514G02F1/134309G02F1/136227G02F2001/13685G02F2001/133519G02F2202/104
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Quick Facts
Patent No.
US 9,651,830
App. No.
15/182,254
Granted
May 16, 2017
Kind
B2
Abstract

In a first substrate, a first organic insulating film is arranged in an active area, and includes a first surface and a first concave portion in a peripheral area outside the active area. The first concave portion is located more close to a substrate end side than the first surface. In a second substrate, a shield layer is arranged in the peripheral area facing the first substrate. A second organic insulating film includes a second surface facing the first surface and a second concave portion facing the first concave portion. The second organic insulating film overlaps the shield layer in the peripheral area. A pillar-shaped spacer is arranged between the first surface and the second surface in the peripheral area. A seal material contains the pillar-shaped spacer and is arranged between the first surface and the second surface, and between the first concave portion and the second concave portion.

Claims (53)

1. A display device, comprising:

an array substrate including:

a first insulating substrate,

an inorganic layer above the first insulating substrate,

an organic layer above the inorganic layer,

a peripheral area arranged around a display area displaying the image, and

a first concave portion of the organic layer penetrating to the inorganic layer in the peripheral area; and

a counter substrate including:

a second insulating substrate,

a shielding layer below the second insulating substrate,

a color filter layer below the shielding layer,

a first region of the color filter layer overlapping the shielding layer in the peripheral area,

a second region of the color filter layer exposing the shielding layer in the peripheral area and facing the first concave portion, and

an overcoat layer formed on the color filter layer in the first region and formed on the shielding layer in the second region, wherein

the overcoat layer comprises a second concave portion in the second region,

the second concave portion is located closer to an end portion of the counter substrate than to the display area in the peripheral area.

2. The display device according to claim 1 , further comprising a spacer located between the array substrate and the counter substrate and formed in the first region.

3. The display device according to claim 1 , wherein a height of the overcoat layer in the second region is greater than a height of the color filter layer in the first region.

4. The display device according to claim 1 , further comprising:

a seal material located between the array substrate and the counter substrate; and

a liquid crystal layer located inside the seal material.

5. The display device according to claim 4 , wherein each of the first concave portion and the second concave portion is filled with the seal material.

6. The display device according to claim 1 , wherein the first concave portion is located closer to an end portion of the array substrate than to the display area in the peripheral area.

7. The display device according to claim 1 , wherein the first region overlaps the organic layer and does not overlap the first concave portion.

8. The display device according to claim 1 , further comprising:

a spacer located between the array substrate and the counter substrate and formed on the array substrate facing the first region; and

a seal material located between the array substrate and the counter substrate,

wherein the spacer is located inside the seal material.

9. A display device, comprising:

an array substrate including:

a first insulating substrate,

an inorganic layer above the first insulating substrate,

an organic layer above the inorganic layer,

a peripheral area arranged around a display area displaying the image, and

a first concave portion of the organic layer penetrating to the inorganic layer in the peripheral area; and

a counter substrate including:

a second insulating substrate,

a shielding layer below the second insulating substrate,

a color filter layer below the shielding layer,

a first region of the color filter layer overlapping the shielding layer in the peripheral area,

a second region of the color filter layer exposing the shielding layer in the peripheral area and facing the first concave portion, and

an overcoat layer formed on the color filter layer in the first region and formed on the shielding layer in the second region,

a spacer located between the array substrate and the counter substrate and formed on the array substrate facing the first region; and

a seal material located between the array substrate and the counter substrate, wherein the spacer is located inside the seal material.

10. The display device according to claim 9 , wherein a height of the overcoat layer in the second region is greater than a height of the color filter layer in the first region.

11. The display device according to claim 9 , wherein the overcoat layer comprises a second concave portion in the second region.

12. The display device according to claim 11 , wherein each of the first concave portion and the second concave portion is filled with the seal material.

13. The display device according to claim 11 , wherein the second concave portion is located closer to an end portion of the counter substrate than to the display area in the peripheral area.

14. The display device according to claim 9 , further comprising:

a seal material located between the array substrate and the counter substrate; and

a liquid crystal layer located inside the seal material.

15. The display device according to claim 9 , wherein the first concave portion is located closer to an end portion of the array substrate than to the display area in the peripheral area.

16. The display device according to claim 9 , wherein the first region overlaps the organic layer and does not overlap the first concave 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 2012-185055 · Aug 24, 2012 · national
Continuity (3)
Continuation 14930328 · Nov 2, 2015
Continuation 13960102 · Aug 6, 2013
Related Publication 20160291362A1 · Oct 6, 2016