Granted Patent B2

US 12,396,329 · App. 17/704,095 · Granted Aug 19, 2025

Inventors: Youngwan Seo (Yongin-si, KR); Jisun Kim (Yongin-si, KR); Kyunghoe Lee (Yongin-si, KR); Keunhee Choi (Yongin-si, KR)

Assignee: Samsung Display Co., Ltd.

H10K59/1216H10K59/1213H10K59/131

Abstract

Claims (40)

1. A display apparatus comprising:

a substrate including a first area and a second area disposed adjacent to the first area;

a first pixel arranged in the first area;

a first pixel circuit arranged in the first area, electrically connected to the first pixel, and overlapping at least a portion of the first pixel; and

a second pixel arranged in the second area and electrically connected to the first pixel circuit,

wherein the first pixel circuit comprises a first storage capacitor and a second storage capacitor that are connected in parallel to each other between a driving voltage line and a gate electrode of a first thin-film transistor,

wherein the first storage capacitor comprises a first electrode and a second electrode disposed on the first electrode and at least partially overlapping with the first electrode,

wherein the second storage capacitor comprises the second electrode and a third electrode disposed on the second electrode and at least partially overlapping with the second electrode, and

wherein the first pixel circuit comprises:

the first thin-film transistor comprising the first gate electrode and a first semiconductor layer, the first gate electrode being arranged in a same layer as the first electrode and the first semiconductor layer being arranged below the first gate electrode; and

a second thin-film transistor comprising a second gate electrode and a second semiconductor layer, the second gate electrode being arranged in a same layer as the third electrode and the second semiconductor layer being arranged below the second gate electrode.

2. The display apparatus of claim 1 , wherein the first electrode is electrically connected to the third electrode.

3. The display apparatus of claim 2 , wherein the second thin-film transistor further comprises a third gate electrode arranged below the second semiconductor layer.

4. The display apparatus of claim 3 , wherein the first semiconductor layer and the second semiconductor layer are arranged in different layers.

5. The display apparatus of claim 4 , wherein the first semiconductor layer comprises a silicon semiconductor and the second semiconductor layer comprises an oxide semiconductor.

6. The display apparatus of claim 5 , wherein the first pixel circuit further comprises a third storage capacitor, and

wherein the third storage capacitor comprises a fourth electrode and a fifth electrode which overlap each other with at least one insulating layer interposed therebetween.

7. The display apparatus of claim 6 , wherein the fourth electrode is arranged in a same layer as the first electrode and the fifth electrode is arranged in a same layer as the second semiconductor layer.

8. The display apparatus of claim 1 , wherein the third electrode is electrically connected to the second semiconductor layer through a connection electrode.

9. The display apparatus of claim 1 , wherein the second pixel does not overlap the first pixel circuit.

10. The display apparatus of claim 9 , wherein the second pixel is connected to the first pixel circuit through a connection wiring.

11. The display apparatus of claim 1 , further comprising:

a third pixel arranged in the first area; and

a second pixel circuit arranged in the first area, electrically connected to the third pixel, and overlapping at least a portion of the third pixel.

12. A display apparatus comprising:

a substrate including a first area and a second area disposed adjacent to the first area; and

a first pixel circuit arranged in the first area and comprising a first semiconductor layer and a second semiconductor layer arranged in different layers,

wherein the first pixel circuit comprises a first storage capacitor and a second storage capacitor which are connected in parallel to each other between a driving voltage line and a first gate electrode of a first thin-film transistor,

wherein the first storage capacitor comprises a first electrode and a second electrode disposed on the first electrode and at least partially overlapping with the first electrode,

wherein the second storage capacitor comprises the second electrode and a third electrode disposed on the second electrode and at least partially overlapping with the second electrode, and

wherein the first pixel circuit comprises:

the first thin-film transistor comprising the first gate electrode and the first semiconductor layer, the first gate electrode being arranged in a same layer as the first electrode and the first semiconductor layer being arranged below the first gate electrode; and

a second thin-film transistor comprising a second gate electrode and the second semiconductor layer, the second gate electrode being arranged in a same layer as the third electrode and the second semiconductor layer being arranged below the second gate electrode.

13. The display apparatus of claim 12 , further comprising a first pixel arranged in the first area,

wherein the first pixel is electrically connected to the first pixel circuit and overlaps at least a portion of the first pixel circuit.

14. The display apparatus of claim 12 , further comprising a second pixel arranged in the second area,

wherein the second pixel is electrically connected to the first pixel circuit and the second pixel does not overlap at least a portion of the first pixel circuit.

15. The display apparatus of claim 12 , further comprising a third pixel arranged in the first area and a second pixel circuit electrically connected to the third pixel,

wherein the third pixel overlaps at least a portion of the second pixel circuit.

16. The display apparatus of claim 12 , wherein the first semiconductor layer comprises a silicon semiconductor and the second semiconductor layer comprises an oxide semiconductor.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (20)