Granted Patent B2

US 12,446,450 · App. 18/767,113 · Granted Oct 14, 2025

Inventors: Gihyun Lee (Yongin-si, KR); Byeongguk Choi (Yongin-si, KR); Hwiseong Kim (Yongin-si, KR); Suk Ki (Yongin-si, KR); Youngshin Lee (Yongin-si, KR)

Assignee: SAMSUNG DISPLAY CO., LTD.

H10K59/88H10K50/84H10K59/80523H10K59/65H10K59/80521H10K59/8731

Abstract

Claims (29)

1. A display panel, comprising:

a substrate,

wherein the display panel comprises a first area and a second area;

a first pixel electrode disposed in the first area; and

an opposite electrode disposed on the first pixel electrode,

wherein the opposite electrode comprises a first layer including a first material, and a second layer including the first material and a second material, and

herein the first layer is closer to the substrate than the second layer is to the substrate.

2. The display panel of claim 1 , wherein an amount of the second material is 5% to 40% of a total amount of the second layer.

3. The display panel of claim 2 , wherein a ductility of the first material is greater than a ductility of the second material, and a brittleness of the second material is greater than a brittleness of the first material.

4. The display panel of claim 1 , wherein an amount of the second material in the second layer gradually increases from a bottom of the second layer to a top of the second layer.

5. The display panel of claim 1 , further comprising:

a third area of the display panel disposed between the first area and the second area of the display panel, wherein a through hole is defined in the second area.

6. The display panel of claim 5 , wherein the opposite electrode extends from the first area to the third area.

7. The display panel of claim 1 , further comprising:

a second pixel electrode disposed in the second area of the display panel,

wherein the opposite electrode extends from the first area to the second area and covers the second pixel electrode.

8. The display panel of claim 7 , further comprising:

an organic functional layer disposed between the second pixel electrode and the opposite electrode; and

a thin-film encapsulation layer disposed on the opposite electrode.

9. The display panel of claim 1 , further comprising:

a bottom metal layer disposed between the substrate and the opposite electrode in the second area.

10. The display panel of claim 9 , wherein the second area comprises a transmission area, and the bottom metal layer comprises a lower hole corresponding to the transmission area.

11. The display panel of claim 10 , wherein the opposite electrode comprises a hole corresponding to the transmission area.

12. The display panel of claim 1 , wherein the opposite electrode further comprises a third layer.

13. The display panel of claim 12 , wherein the third layer disposed between the first pixel electrode and the first layer.

14. The display panel of claim 13 , wherein the third layer includes the first material and the second material.

15. The display panel of claim 1 , wherein the opposite electrode has a thickness of 50 Å to 150 Å.

16. The display panel of claim 15 , wherein a thickness of the first layer is about 1/10 to about ⅘ of the thickness of the opposite electrode.

17. The display panel of claim 16 , wherein a thickness of the second layer is ⅕ to 9/10 of the thickness of the opposite electrode.

Priority Claims (1)

Continuity (2)

References Cited (30)