Display device

Patent metadata

Field	Value
Publication number	US-10679566-B2
Application number	US-201715843367-A
Country	US
Kind code	B2
Filing date	Dec 15, 2017
Priority date	Dec 20, 2016
Publication date	Jun 9, 2020
Grant date	Jun 9, 2020

Abstract

Provided herein may be a display device. The display device may include a substrate, a base layer, a first protrusion and a second protrusion. The substrate may include a pixel area, and a peripheral area surrounding the pixel area. The base layer may be disposed on the pixel area, and include a plurality of island patterns on which respective pixels are provided, and a plurality of bridge patterns coupling the adjacent island patterns to each other, the plurality of island patterns and the plurality of bridge patterns disposed on the first area. The first protrusion and the second protrusion may be provided on the base layer.

First claim

What is claimed is:

1. A display device comprising:
a substrate including a pixel area, and a peripheral area surrounding the pixel area, the pixel area including a first area and a second area surrounding the first area;
a base layer disposed on the pixel area, comprising a plurality of island patterns on which respective pixels are provided, and comprising a plurality of bridge patterns coupling the adjacent ones of the island patterns to each other, wherein the plurality of island patterns and the plurality of bridge patterns are disposed on the first area; and
conductive lines comprising a plurality of first protrusions and a plurality of second protrusions, wherein the plurality of first protrusions and the plurality of second protrusions protrude toward from the base layer into the second area.

2. The display device of claim 1 , wherein signal lines coupled to the pixels are provided on the plurality of bridge patterns.

3. The display device of claim 1 ,
wherein each of the plurality of island patterns has a rectangular shape, and
wherein respective sides of the plurality of island patterns are coupled with a plurality of corresponding bridge patterns.

4. The display device of claim 1 ,
wherein the conductive lines comprise sensing lines provided on the base layer and configured to measure a degree of elongation of the substrate.

5. The display device of claim 4 , wherein the plurality of first protrusions and the plurality of second protrusions are included in the sensing lines.

6. The display device of claim 5 ,
wherein, when the substrate is not elongated, the plurality of first protrusions and the plurality of second protrusions come into contact with each other, and
wherein, when the substrate is elongated, the plurality of first protrusions and the plurality of second protrusions are spaced apart from each other.

7. The display device of claim 5 ,
wherein the plurality of first protrusions protrude from one side of each of the plurality of island patterns, and
wherein the plurality of second protrusions protrude from one side of the plurality of corresponding bridge pattern so that the plurality of second protrusions are connected with the plurality of first protrusions in the second area.

8. The display device of claim 7 ,
wherein each of the plurality of first protrusions and the plurality of second protrusions comprise a plurality of first sub-protrusions and a plurality of second sub-protrusions provided between each of the plurality of island patterns and the plurality of corresponding bridge pattern coupled with the plurality of island patterns, and
wherein, as the degree of elongation of the substrate is increased, the numbers of the plurality of first sub-protrusions and the plurality of second sub-protrusions in contact with each other are reduced.

9. The display device of claim 5 , further comprising:
a scan driver configured to supply a scan signal to the pixels through scan lines;
a data driver configured to supply a data signal to the pixels through data lines;
a sensing unit configured to measuring the degree of elongation of the substrate with reference to variation in resistance of the sensing lines; and
a data compensation unit configured to compensate for the data signal with reference to the degree of elongation of the substrate.

10. The display device of claim 9 , wherein the sensing lines come into contact with the data lines.

11. The display device of claim 10 ,
wherein the data driver supplies the data signal for displaying an image to the data lines during a first period, and
wherein the data driver supplies a reference data signal to the data lines during a second period, the reference data signal being provided for measuring the degree of elongation of the substrate.

12. The display device of claim 11 , wherein the sensing unit senses current flowing through the data lines during the second period.

13. The display device of claim 1 ,
wherein the conductive lines comprise a drive voltage line and a sub-drive voltage line configured to supply a first power supply to the pixels.

14. The display device of claim 13 , wherein the plurality of first protrusions and the plurality of second protrusions are included in the sub-drive voltage line.

15. The display device of claim 14 ,
wherein, when the substrate is not elongated, the plurality of first protrusions and the plurality of second protrusions are spaced apart from each other, and
wherein, when the substrate is elongated, the plurality of first protrusions and the plurality of second protrusions come into contact with each other.

16. The display device of claim 15 , wherein, when the substrate is elongated, the first power supply is supplied to the pixels through the drive voltage line and the sub-drive voltage line.

17. The display device of claim 14 ,
wherein the plurality of first protrusions protrude from one side of each of the plurality of island patterns, and
wherein the plurality of second protrusions protrude from one side of the plurality of corresponding bridge patterns so that the plurality of second protrusions are connected with the plurality of first protrusions in the second area.

18. The display device of claim 14 ,
wherein each of the plurality of first protrusions protrudes from one side of each of the plurality of island patterns, and
wherein each of the plurality of second protrusions protrudes from one side of another island pattern adjacent to the island pattern from which the each of the plurality of first protrusion protrudes.

19. The display device of claim 14 , further comprising:
a first insulating layer provided on the base layer; and
a second insulating layer provided on the first insulating layer.

20. The display device of claim 19 , wherein the drive voltage line is provided on the second insulating layer.

21. The display device of claim 19 , wherein each of the pixels comprises a transistor and the transistor comprises:
a gate electrode provided on the first insulating layer; and
a source electrode and a drain electrode provided on the second insulating layer.

22. The display device of claim 19 , wherein the plurality of first protrusions and the plurality of second protrusions are provided on the second insulating layer.

23. The display device of claim 19 , wherein the drive voltage line and the sub-drive voltage line are provided on an identical layer.

24. A method of driving a display device, including a substrate and pixels disposed on the substrate, the method comprising:
supplying a reference data signal to data lines;
calculating a degree of elongation of the substrate with reference to current flowing through the data lines;
generating a compensated data signal by compensating for a data signal for displaying an image with reference to the degree of elongation of the substrate; and
supplying the compensated data signal to the pixels through the data lines.

25. The method of claim 24 ,
wherein sensing lines including a first protrusion and a second protrusion are coupled to the data lines, and
wherein, when the substrate is not elongated, the first protrusion and the second protrusion come into contact with each other, and when the substrate is elongated, the first protrusion and the second protrusion are spaced apart from each other.

26. The method of claim 25 , wherein, as the degree of elongation of the subst

Assignees

• Samsung Display Co Ltd

Inventors

• Jeon Jae Hyeon
• Kim Byung Sun
• Kim Ji Hye
• Nam Hui
• Lee Dong Hoon

Classifications

• H01L2251/5338

  Electricity · mapped topic

• H01L27/323

  Electricity · mapped topic

• G09G3/3258

  with pixel circuitry controlling the voltage across the light-emitting element · CPC title

• G09G2380/02

  Flexible displays · CPC title

• G09G3/3266

  Details of drivers for scan electrodes · CPC title