Display device and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-9935133-B2
Application number	US-201615072747-A
Country	US
Kind code	B2
Filing date	Mar 17, 2016
Priority date	Mar 17, 2015
Publication date	Apr 3, 2018
Grant date	Apr 3, 2018

Abstract

A display device includes: a first substrate comprising a display area including a plurality of pixels, and a peripheral area around the display area; a plurality of driving signal transmission lines on the first substrate and arranged in the peripheral area; a first insulating layer on the first substrate and arranged under the plurality of driving signal transmission lines; and a second insulating layer on a portion of the plurality of driving signal transmission lines and arranged in the display area, and the first insulating layer includes a trench between two driving signal transmission lines adjacent to each other among the plurality of driving signal transmission lines, and an edge portion of the second insulating layer overlaps the trench.

First claim

What is claimed is:

1. A display device comprising:
a first substrate comprising a display area including a plurality of pixels, and a peripheral area around the display area;
a plurality of driving signal transmission lines on the first substrate and arranged in the peripheral area;
a first insulating layer on the first substrate and arranged under the plurality of driving signal transmission lines; and
a second insulating layer on a portion of the plurality of driving signal transmission lines and arranged in the display area,
wherein the first insulating layer includes a trench between two driving signal transmission lines adjacent to each other among the plurality of driving signal transmission lines, and
wherein an edge portion of the second insulating layer overlaps the trench.

2. The display device of claim 1 , wherein the driving signal transmission lines comprise silver (Ag).

3. The display device of claim 2 ,
wherein each of the driving signal transmission lines includes a first film, a second film on the first film, and a third film on the second film, and
wherein the second film comprises silver (Ag).

4. The display device of claim 3 , wherein the first film and the third film comprise titanium (Ti).

5. The display device of claim 4 , further comprising a data line on the first substrate, wherein a driving signal transmission line of the plurality of driving signal transmission lines is connected to the data line.

6. The display device of claim 1 ,
wherein the trench formed in the first insulating layer is in plural, and
wherein the edge portion of the second insulating layer is in plural and overlaps at least a portion of the plurality of trenches.

7. The display device of claim 6 , wherein the driving signal transmission lines comprise silver (Ag).

8. The display device of claim 7 ,
wherein each of the driving signal transmission lines includes a first film, a second film on the first film, and a third film on the second film, and
wherein the second film comprises silver (Ag).

9. The display device of claim 8 , wherein the first film and the third film comprise titanium (Ti).

10. The display device of claim 9 , further comprising a data line formed on the first substrate, wherein a driving signal transmission line of the plurality of driving signal transmission lines is connected to the data line.

11. A manufacturing method of a display device comprising:
forming a first insulating layer on a first substrate comprising a display area including a plurality of pixels, and a peripheral area around the display area;
forming a plurality of driving signal transmission lines on the first substrate and arranged in the peripheral area, the first insulating layer arranged under the plurality of driving signal transmission lines;
forming a trench in the first insulating layer, the trench between two driving signal transmission lines adjacent to each other among the plurality of driving signal transmission lines; and
forming a second insulating layer on a portion of the plurality of driving signal transmission lines, the second insulating layer arranged in the display area and including an edge portion overlapping the trench.

12. The manufacturing method of claim 11 , wherein the driving signal transmission lines comprise silver (Ag).

13. The manufacturing method of claim 12 ,
wherein each of the driving signal transmission lines includes a first film, a second film on the first film, and a third film on the second film, and
wherein the second film comprises silver (Ag).

14. The manufacturing method of claim 13 , wherein the first film and the third film comprise titanium (Ti).

15. The manufacturing method of claim 14 , further comprising forming a data line on the first substrate, wherein a driving signal transmission line of the plurality of driving signal transmission lines is connected to the data line.

16. The manufacturing method of claim 11 ,
wherein the forming of the trench comprises forming a plurality of trenches in the first insulating layer, and
wherein the second insulating layer is formed to have plural edges overlapping at least a portion of the plurality of trenches.

17. The manufacturing method of claim 16 , wherein the driving signal transmission lines comprise silver (Ag).

18. The manufacturing method of claim 17 ,
wherein each of the driving signal transmission lines includes a first film, a second film on the first film, and a third film on the second film, and
wherein the second film comprises silver (Ag).

19. The manufacturing method of claim 18 , wherein the first film and the third film comprise titanium (Ti).

20. The manufacturing method of claim 19 , further comprising forming a data line on the first substrate, wherein a driving signal transmission line of the plurality of driving signal transmission lines is connected to the data line.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Deuk Jong
• Kim Hyo Jin
• Park Won Mo

Classifications

• H01L27/1244 Primary

  Electricity · mapped topic

• H10D86/443 Primary

  adapted for preventing breakage, peeling or short circuiting · CPC title

• H10D86/60 Primary

  wherein the TFTs are in active matrices · CPC title

• H10D86/021

  of multiple TFTs · CPC title

• G02F1/13458

  Terminal pads · CPC title