Display device and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-9829749-B2
Application number	US-201514745067-A
Country	US
Kind code	B2
Filing date	Jun 19, 2015
Priority date	Nov 28, 2014
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

A display device and a method of manufacturing the display device are provided. The display device includes a display panel having a first substrate and a second substrate bonded to the first substrate and in which a display area displaying an image and a non-display area extending towards the outside of the display area are formed; a sealant arranged between the first substrate and the second substrate and surrounding the display area; wirings arranged on the first substrate; and a black matrix arranged on the second substrate, wherein a heat energy passing portion through which a heat energy applied from the outside towards the sealant passes is formed in the display panel.

First claim

What is claimed is:

1. A display device comprising:
a display panel having a first substrate and a second substrate bonded to the first substrate and in which a display area displaying an image and a non-display area extending towards the outside of the display area, are formed;
a sealant arranged between the first substrate and the second substrate and surrounding the display area;
a plurality of adjacent wires arranged on the first substrate;
a black matrix arranged on the second substrate, at least a portion of the black matrix overlapping the sealant;
a heat energy passing portion through which a heat energy applied from the outside towards the sealant passes, the heat energy passing portion having been formed in the display panel adjacent the sealant, the heat energy passing portion is a space formed by removing a portion of the overlapping portion of the black matrix; and
a heat energy blocking portion is formed on the first substrate in a pathway of the heat energy passing from an upper portion of the second substrate through the heat energy passing portion.

2. The display device of claim 1 , the heat energy blocking portion has a dam shape formed of a polymer resin.

3. The display device of claim 1 , the heat energy blocking portion is a blue photoresist.

4. The display device of claim 1 , further comprised of:
an over-coating layer completely covering the black matrix is further formed on the second substrate, and
a common electrode is formed on the over-coating layer.

5. The display device of claim 1 , the sealant has a black color.

6. The display device of claim 1 , a liquid crystal is formed between the first substrate and the second substrate, and
the display device further comprises a liquid crystal display in which a backlight unit is disposed below the display panel to irradiate light towards the display panel.

7. A method of manufacturing a display device, the method comprising:
preparing a display panel in which a display area and a non-display area extending toward the outside of the display area are formed and which has a first substrate on which wires are arranged and a second substrate on which a black matrix is formed;
forming a sealant between the first substrate and the second substrate and bonding the first substrate and the second substrate, at least a portion of the black matrix overlapping the sealant;
cutting the first substrate and the second substrate by applying a heat energy,
forming a heat energy passing portion through which the heat energy applied from the outside towards the sealant passes, the heat energy passing portion being formed in the display panel adjacent the sealant, the heat energy passes through the heat energy passing portion and is applied to a portion in which the sealant is formed, the heat energy passing portion is a space formed by removing a portion of the overlapping portion of the black matrix, and the heat energy is applied to the sealant by passing from the outside of the second substrate through the formed space; and
forming a heat energy blocking portion on the first substrate in a pathway of the heat energy passing from an upper portion of the second substrate through the heat energy passing portion.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Janghyun
• Kim Minsu
• Cha Taewoon

Classifications

• G02F1/1339 Primary

  Gaskets; Spacers; Sealing of cells · CPC title

• G02F1/133351

  Manufacturing of individual cells out of a plurality of cells, e.g. by dicing · CPC title

• G02F1/133512

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