Display device

Patent metadata

Field	Value
Publication number	US-10636864-B2
Application number	US-201916360993-A
Country	US
Kind code	B2
Filing date	Mar 21, 2019
Priority date	Dec 8, 2016
Publication date	Apr 28, 2020
Grant date	Apr 28, 2020

Abstract

A display is provided. The display device includes a display area and a non-display area located around the display area; a base layer; an organic light-emitting diode (OLED) that is located on the base layer in the display area; and a first crack detection line that is located on the base layer in the non-display area; wherein the first crack detection line comprises a first line that extends substantially in a first direction along a first edge of the display area, a second line that is separated from the first line and extends substantially in the first direction, and a third line that is connected to an end of the first line and an end of the second line, wherein a cross-sectional shape of the first line in a second direction crossing the first direction is inversely tapered.

First claim

What is claimed is:

1. A display device comprising:
a display area and a non-display area located around the display area, the non-display area including a first bending area;
a base layer;
an organic light-emitting diode that is located on the base layer in the display area; and
a first detection line that is located on the base layer in the first bending area;
wherein the first detection line comprises a first line that extends substantially in a first direction along a first edge of the display area, a second line that is separated from the first line and extends substantially in the first direction, and a third line that is connected to an end of the first line and an end of the second line,
wherein a cross-sectional shape of the entire first line in a second direction crossing the first direction is inversely tapered.

2. The display device of claim 1 , wherein a cross-sectional shape of the second line in the second direction is inversely tapered.

3. The display device of claim 1 , further comprising:
a first test pad that is located in the non-display area and connected to the other end of the first line; and
a second test pad that is located in the non-display area and connected to the other end of the second line.

4. The display device of claim 3 , wherein a cross-sectional shape of the first test pad or a cross-sectional shape of the second test pad is inversely tapered.

5. The display device of claim 1 , further comprising a second detection line that is located on the base layer in the non-display area and separated from the first detection line,
wherein the non-display area further includes a second bending area opposite to the first bending area,
wherein the second detection line is disposed in the second bending area in the second direction,
wherein the second detection line comprises a fourth line that extends substantially in the first direction along a second edge of the display area that faces the first edge, a fifth line that is separated from the fourth line and extends substantially in the first direction, and a sixth line that is connected to an end of the fourth line and an end of the fifth line, wherein a cross-sectional shape of the fourth line in the second direction crossing the first direction is inversely tapered.

6. The display device of claim 1 , further comprising:
a semiconductor layer that is located on the base layer in the display area;
a gate insulating layer that is located on the base layer and the semiconductor layer;
a gate electrode that is located on the gate insulating layer;
a first interlayer insulating film that is located on the gate electrode and the gate insulating layer; and
a source electrode and a drain electrode that are located on the first interlayer insulating film,
wherein the first detection line is located on the first interlayer insulating film and made of the same material as the source electrode and the drain electrode.

7. The display device of claim 1 , further comprising a power supply line that is located on the base layer in the non-display area and positioned between the display area and the first detection line.

8. The display device of claim 7 , wherein the first detection line is made of the same material as the power supply line.

9. The display device of claim 1 , further comprising:
a first inorganic film pattern disposed directly on the first line; and
a second inorganic film pattern disposed directly on the second line,
wherein the first inorganic film pattern and the second inorganic film pattern are spaced apart from each other in the second direction.

10. A display device comprising:
a display area and a non-display area located around the display area, the non-display area including a bending area;
a base layer;
a thin-film transistor that is located on the base layer in the display area;
a pad which is located on the base layer in the non-display area;
a data line that is located on the base layer, extends substantially in a first direction, is electrically connected to the thin-film transistor in the display area, and is electrically connected to the pad in the non-display area; and
a detection pattern that is located between an edge of the base layer and the data line in the non-display area and separated from the data line,
wherein a portion of the detection pattern is disposed in the bending area, and
wherein a cross-sectional shape of the detection pattern in a second direction crossing the first direction is inversely tapered.

11. The display device of claim 10 , wherein the detection pattern comprises a first pattern that extends substantially in the first direction, a second pattern that is separated from the first pattern and extends substantially in the first direction, and a connection pattern that connects the first pattern and the second pattern, wherein a cross-sectional shape of the first pattern in the second direction is inversely tapered.

12. The display device of claim 11 , wherein a cross-sectional shape of the second pattern in the second direction is inversely tapered.

13. The display device of claim 10 , further comprising:
an interlayer insulating film that is located on the thin-film transistor;
an organic light-emitting diode that is located on the interlayer insulating film and electrically connected to the thin-film transistor; and
a thin-film encapsulation layer that is located on the organic light-emitting diode and seals the organic light-emitting diode,
wherein the crack detection pattern does not contact the thin-film encapsulation layer.

14. The display device of claim 10 , further comprising:
a detection line that is located on the base layer in the non-display area and separated from the detection pattern;
wherein the detection line is made of the same material as the detection pattern.

15. The display device of claim 14 , wherein the detection line comprises a first line that extends substantially in a first direction along a first edge of the display area, a second line that is separated from the first line and extends substantially in the first direction, and a third line that is connected to an end of the first line and an end of the second line,
wherein a cross-sectional shape of the entire first line in a second direction crossing the first direction is inversely tapered.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Hun
• Kim Yong Jin
• Wang Soon Jung
• Lee Keun Soo
• Lee Jae Ho
• Chae Kyung Chan

Classifications

• H01L27/3276 Primary

  Electricity · mapped topic

• H01L51/0031

  Electricity · mapped topic

• H01L51/5253

  Electricity · mapped topic

• H01L27/3262

  Electricity · mapped topic

• H01L27/3246

  Electricity · mapped topic