Liquid crystal display device

Patent metadata

Field	Value
Publication number	US-10495929-B2
Application number	US-201916286767-A
Country	US
Kind code	B2
Filing date	Feb 27, 2019
Priority date	Aug 6, 2014
Publication date	Dec 3, 2019
Grant date	Dec 3, 2019

Abstract

In order to avoid generation of black unevenness caused by the water intrusion into a liquid crystal display device, there is to provide a liquid crystal display device including a display area and a terminal portion, in which a TFT substrate with an organic passivation film formed and an opposite substrate are adhered to each other by a seal portion and a liquid crystal is enclosed there, wherein in the seal portion of the TFT substrate, a groove-shaped through-hole is formed in the organic passivation film to surround the display area, a water absorption layer formed of the same material in the same process as that of the organic passivation film is formed within the groove-shaped through-hole, and the water absorption layer is not covered with the inorganic insulating film.

First claim

What is claimed:

1. A display device comprising:
a first substrate having a first inorganic insulation film, a conductive layer provided on the first inorganic insulating film, an organic insulation film provided on the conductive layer, a second inorganic insulation film provided on the organic insulation film, and a sealing member provided on the second inorganic insulation film,
wherein the organic insulation film has a first portion and a second portion that is separated from the first portion,
the second portion is located closer to an end of the first substrate than the first portion,
the first inorganic insulation film and the second inorganic insulation film are in contact with each other between the first portion and the second portion,
the first portion and the second portion overlap with the sealing member, in a plan view, and
the second portion overlaps with a part where the second inorganic insulation film is not formed, in sectional view.

2. The display device according to claim 1 ,
wherein the second portion is in directly contact with the sealing member.

3. The display device according to claim 1 , further comprising an alignment film provided on the inorganic insulation film,
wherein the alignment film overlaps with the sealing member, in sectional view.

4. The display device according to claim 1 , further comprising a second substrate opposed to the first substrate,
wherein the first substrate and the second substrate are bonded by the sealing member.

5. The display device according to claim 4 ,
wherein the second substrate has a light shield layer, an overcoat layer provided on the light shield layer, and a protrusion provided on the overcoat layer,
the protrusion is located closer to an end of the second substrate than the first portion and the second portion, in a plan view.

6. The display device according to claim 5 ,
wherein the protrusion overlaps with the sealing member, in sectional view.

7. The display device according to claim 6 ,
wherein the protrusion overlaps with the light shield layer, in sectional view.

8. The display device according to claim 5 ,
wherein the first portion and the second portion overlap with the light shield layer, in sectional view.

9. A display device comprising:
a first substrate having a conductive layer, an organic insulation film provided on the conductive layer, an inorganic insulation film provided on the organic insulation film, and a sealing member provided on the inorganic insulation film,
wherein the organic insulation film has a first portion and a second portion that is separated from the first portion,
the second portion is located closer to an end of the first substrate than the first portion,
the first portion overlaps with the conductive layer, the inorganic insulation film and the sealing member, in a plan view,
the second portion overlaps with the sealing member in a plan view, and has a part in contact with the sealing member.

10. The display device according to claim 9 ,
wherein the part of the second portion is in directly contact with the sealing member.

11. The display device according to claim 9 ,
wherein the first portion is covered by the inorganic insulation film, and
the inorganic insulation film is between the first portion and the sealing member.

12. The display device according to claim 9 , further comprising an alignment film provided on the inorganic insulation film,
wherein the alignment film overlaps with the sealing member, in sectional view.

13. The display device according to claim 9 , further comprising a second substrate opposed to the first substrate,
wherein the first substrate and the second substrate are bonded by the sealing member.

14. The display device according to claim 13 ,
wherein the second substrate has a light shield layer, an overcoat layer provided on the light shield layer, and a protrusion provided on the overcoat layer,
the protrusion is located closer to an end of the second substrate than the first portion and the second portion, in a plan view.

15. The display device according to claim 14 ,
wherein the protrusion overlaps with the sealing member, in sectional view.

16. The display device according to claim 15 ,
wherein the protrusion overlaps with the light shield layer, in sectional view.

17. The display device according to claim 14 ,
wherein the first portion and the second portion overlap with the light shield layer, in sectional view.

Assignees

• Japan Display Inc

Inventors

• Nishino Tomonori
• Shimura Masato
• Ishikawa Tomokazu
• Kuramoto Yuki
• Hashimoto Satoshi

Classifications

• G02F1/133345

  Insulating layers (G02F1/1335, G02F1/1337, G02F1/135, G02F1/136 take precedence) · CPC title

• G02F1/1368

  in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} · CPC title

• G02F1/1339 Primary

  Gaskets; Spacers; Sealing of cells · CPC title

• G02F2001/133311

  Physics · mapped topic

• G02F2001/13396

  Physics · mapped topic