Liquid crystal display having an opening in a light shielding pattern and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-10126586-B2
Application number	US-201815881499-A
Country	US
Kind code	B2
Filing date	Jan 26, 2018
Priority date	Aug 21, 2015
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

Abstract

A liquid crystal display is provided. A liquid crystal display comprising a first substrate which comprises a display area and a non-display area, a second substrate which faces the first substrate, a sealing member which is disposed in the non-display area between the first substrate and the second substrate, wherein the first substrate comprises a light-shielding pattern, a column spacer which is protruded from the light-shielding pattern toward the second substrate to maintain an interval between the first substrate and the second substrate, an opening which is disposed in the light-shielding pattern, and overlapping the sealing member.

First claim

What is claimed is:

1. A display device comprising:
a substrate which comprises a display area and a non-display area; and
a sealing member which is disposed on the substrate and overlaps the non-display area
wherein the substrate comprises:
a light-shielding pattern;
a protrusion pattern which is protruded from the light-shielding pattern; and
an opening which is disposed in the light-shielding pattern, and overlapping the sealing member,
wherein the opening does not overlap with the protrusion pattern, and
wherein the non-display area comprises a light-shielding area in which the sealing member is not disposed, and a sealing area which surrounds the light-shielding area, and the opening is disposed in the sealing area.

2. The display device of claim 1 , wherein the opening extends in a thickness direction of the light-shielding pattern, and a depth of the opening is the same as a thickness of the light-shielding pattern.

3. The display device of claim 1 , wherein the sealing area has a shape of a closed curve.

4. The display device of claim 3 , wherein the opening includes a plurality of openings which have a regularly spaced interval.

5. The display device of claim 4 , wherein the openings have a same shape and a same size.

6. The display device of claim 3 , wherein the light-shielding pattern overlapping the sealing area has a thickness thinner than that of the light-shielding pattern disposed in the light-shielding area.

7. The display device of claim 6 , wherein the light-shielding pattern has an inclined surface between the sealing area and the light-shielding area.

8. The display device of claim 1 , wherein the interior of the opening is completely filled by the sealing member.

9. The display device of claim 1 , wherein a dummy wiring is further included at the bottom of the light-shielding pattern disposed on the sealing area.

10. The display device of claim 9 , wherein the dummy wiring is formed by extension of wirings disposed on the display area.

11. The display device of claim 9 , wherein, the wiring of the dummy wiring disposed on the display area has a disconnected portion at a boundary between the display area and the non-display area.

12. The display device of claim 1 , wherein an upper portion of the opening is wider than a lower portion of the opening and the opening has an inclined surface between the upper portion and the lower portion.

13. A display device comprising:
a substrate which comprises a display area and a non-display area; and
a sealing member which is disposed on the substrate and overlaps the non-display area; wherein the first substrate comprises:
a light-shielding pattern;
a protrusion pattern which is protruded from the light-shielding pattern; and
an opening which is disposed in the light-shielding pattern, and overlapping the sealing member,
wherein the opening comprises at least one or more openings having shapes different from each other.

14. The display device of claim 1 , wherein the height of the sealing member is higher than the height of the protrusion pattern.

15. The display device of claim 1 , wherein the light-shielding pattern, the protrusion pattern and the sealing member are made of a black material.

16. The display device of claim 1 , wherein the light-shielding pattern and the protrusion pattern are photosensitive materials and formed of a same material through a same process, and the sealing member is made of a non-photosensitive material.

Assignees

• Samsung Display Co Ltd

Inventors

• Yu Sang Hee
• Kim Byung Chul
• Yoon Won Gap
• Park Jae Hong
• Jeon Young Joo
• Tak Kyung Seon

Classifications

• G02F1/1337

  Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers · CPC title

• G02F1/1339

  Gaskets; Spacers; Sealing of cells · CPC title

• G02F1/133512 Primary

  Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title

• G02F1/13394

  spacers regularly patterned on the cell subtrate, e.g. walls, pillars (G02F1/133377 takes precedence) · CPC title

• H05K999/99

  Electricity · mapped topic