IP Library › Granted Patent US 11,367,770
Granted Patent B2
US 11,367,770 · App. 16/789,102 · Granted Jun 21, 2022

Display device

Inventors: Ju Chan Park (Seoul, KR); Sun Hee Lee (Hwaseong-si, KR); Sun Ho Kim (Seongnam-si, KR); Hyun Kim (Seoul, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
H01L27/3276H01L27/3262H01L51/0097G09G3/3225H01L27/124H01L27/1218H01L27/323H01L2251/5338
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Quick Facts
Patent No.
US 11,367,770
App. No.
16/789,102
Granted
Jun 21, 2022
Kind
B2
Abstract

Provided is a display device. The display device has a display area and a non-display area disposed around the display area and includes pixels disposed in the display area; and an intra-pixel bending area disposed along a direction of each of the pixels.

Claims (60)

1. A display device having a display area and a non-display area disposed around the display area, the display device comprising:

pixels disposed in the display area, each pixel including a plurality of subpixels with each subpixel including a light emitting element and a plurality of transistors that together cause the light emitting element to emit light of a selectable color based on data from a respective data line; and

an intra-pixel bending area disposed along a direction of the pixels and through a first subpixel of the plurality of subpixels in plan view, the intra-pixel bending area passing between at least two transistors of the first subpixel.

2. The display device of claim 1 , further comprising:

an extra-pixel bending area disposed between at least two immediately adjacent subpixels.

3. The display device of claim 1 , further comprising:

a scan line passing through the pixels, wherein

the intra-pixel bending area extends in a same direction as the scan line.

4. The display device of claim 3 , wherein

each of the subpixels comprises a first transistor and a third transistor, and

the intra-pixel bending area is disposed between the first transistor and the third transistor in plan view.

5. The display device of claim 4 , wherein

the first transistor comprises a first semiconductor layer and a first gate electrode of the scan line, and

the first semiconductor layer is interrupted in the intra-pixel bending area.

6. The display device of claim 5 , wherein the first semiconductor layer comprises:

a first active layer;

a first electrode disposed on a side of the first active layer; and

a second electrode disposed on the other side of the first active layer,

wherein the second electrode is interrupted in the intra-pixel bending area.

7. The display device of claim 5 , further comprising:

a first substrate;

a barrier layer disposed on the first substrate;

a buffer layer disposed on the barrier layer;

the first semiconductor layer disposed on the buffer layer;

an insulating layer disposed on the first semiconductor layer; and

a first bending organic layer, wherein

the first bending organic layer penetrates the insulating layer and the first semiconductor layer in the intra-pixel bending area.

8. The display device of claim 7 , wherein the first bending organic layer further penetrates the buffer layer and is disposed on a surface of the barrier layer.

9. The display device of claim 8 , wherein the first bending organic layer further penetrates the barrier layer and is disposed on a surface of the first substrate.

10. The display device of claim 7 , wherein

the intra-pixel bending area further comprises an intra-pixel connection line disposed on the first bending organic layer, and

the intra-pixel connection line electrically connects the interrupted first semiconductor layer.

11. The display device of claim 10 , wherein the intra-pixel connection line and the scan line comprise different materials.

12. The display device of claim 11 , wherein

the intra-pixel connection line comprises aluminum, and

the scan line comprises molybdenum.

13. The display device of claim 10 , wherein the intra-pixel connection line extends in a direction intersecting the extending direction of the intra-pixel bending area.

14. The display device of claim 2 , wherein

the extra-pixel bending area is disposed around each of the subpixels individually.

15. The display device of claim 14 , wherein the scan line is interrupted in the extra-pixel bending area.

16. The display device of claim 15 , further comprising:

a first substrate;

a barrier layer is disposed on the first substrate;

a buffer layer disposed on the barrier layer;

the scan line disposed on the buffer layer;

an insulating layer disposed on the scan line; and

a second bending organic layer, wherein

the second bending organic layer penetrates the insulating layer and the scan line in the extra-pixel bending area.

17. The display device of claim 16 , further comprising an extra-pixel connection line extending in a same direction as the scan line, wherein the extra-pixel connection line is disposed on the second bending organic layer.

18. The display device of claim 17 , wherein the extra-pixel connection line electrically connects the interrupted scan line.

19. The display device of claim 1 , wherein

the display device is foldable along a folding axis, and

parts of the display area separated by the folding axis overlap each other when the display device is folded along the folding axis.

20. The display device of claim 1 , further comprising:

second pixels disposed in the display area, each second pixel including a plurality of subpixels with each subpixel including a light emitting element and a plurality of transistors that together cause the light emitting element to emit light of a selectable color based on data from a respective data line, wherein

no bending area is disposed within any subpixel of the second pixels.

21. The display device of claim 1 , wherein each of the subpixels comprises:

a first transistor connected to a scan line and a third transistor, and

a drive transistor that provides a drive current for a respective light emitting element, wherein

the intra-pixel bending area is disposed between the first transistor and the drive transistor in plan view.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 12, 2020
From: PARK, JU CHAN; LEE, SUN HEE; KIM, SUN HO; KIM, HYUN
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 051915/0562 →
Priority Claims (1)
KR 10-2019-0086662 · Jul 17, 2019 · national
Continuity (1)
Related Publication 20210020723A1 · Jan 21, 2021
Cited By (2)
US 12,681,535 US 12,720,956