Granted Patent B2

US 12,324,307 · App. 18/381,228 · Granted Jun 3, 2025

Inventors: Daiki Nakamura (Kanagawa, JP); Nozomu Sugisawa (Kanagawa, JP)

Assignee: Semiconductor Energy Laboratory Co., Ltd.

H10K50/856H10K50/828H10K50/844H10K59/90H10H20/84H10K50/818H10K59/12H10K59/123H10K2102/341

Abstract

Claims (35)

1. A display panel comprising:

a display region; and

a visible-light-transmitting region outside the display region,

wherein the display region is adjacent to the visible-light-transmitting region,

wherein the display region comprises a first light-emitting element and a second light-emitting element,

wherein the first light-emitting element and the second light-emitting element emit light in the same direction,

wherein the first light-emitting element comprises a first pixel electrode and a first common electrode,

wherein the second light-emitting element comprises a second pixel electrode and a second common electrode,

wherein the first common electrode is configured to reflect visible light,

wherein the second common electrode is configured to transmit visible light, and

wherein the second light-emitting element is positioned closer to the visible-light-transmitting region than the first light-emitting element.

2. The display panel according to claim 1 , wherein the second common electrode extends to the visible-light-transmitting region.

3. The display panel according to claim 1 , wherein the first common electrode is in contact with the second common electrode.

4. The display panel according to claim 1 , further comprising a protective layer over the first light-emitting element and the second light-emitting element.

5. The display panel according to claim 1 ,

wherein the second common electrode comprises a first region overlapping with and in contact with the first common electrode, and

wherein the second common electrode comprises a second region not overlapping with the first common electrode.

6. The display panel according to claim 5 , wherein the second region is closer to the visible-light-transmitting region than the first region.

7. A display panel comprising:

a display region; and

a visible-light-transmitting region outside the display region,

wherein the display region is adjacent to the visible-light-transmitting region,

wherein the display region comprises a first light-emitting element and a second light-emitting element,

wherein the first light-emitting element and the second light-emitting element emit light in the same direction,

wherein the first light-emitting element comprises a first pixel electrode and a first common electrode,

wherein the second light-emitting element comprises a second pixel electrode and a second common electrode,

wherein a material of the first common electrode is different from a material of the second common electrode, and

wherein the second light-emitting element is positioned closer to the visible-light-transmitting region than the first light-emitting element.

8. The display panel according to claim 7 , wherein the second common electrode extends to the visible-light-transmitting region.

9. The display panel according to claim 7 , wherein the first common electrode is in contact with the second common electrode.

10. The display panel according to claim 7 , further comprising a protective layer over the first light-emitting element and the second light-emitting element.

11. The display panel according to claim 7 ,

wherein the second common electrode comprises a first region overlapping with and in contact with the first common electrode, and

wherein the second common electrode comprises a second region not overlapping with the first common electrode.

12. The display panel according to claim 11 , wherein the second region is closer to the visible-light-transmitting region than the first region.

Assignments (1)

Priority Claims (1)

Continuity (3)

References Cited (185)