Granted Patent B2

US 12,219,852 · App. 17/422,527 · Granted Feb 4, 2025

Inventors: Taisuke Kamada (Saitama, JP); Daisuke Kubota (Kanagawa, JP)

Assignee: Semiconductor Energy Laboratory Co., Ltd.

H10K59/38H10K50/858H10K50/865H10K59/122

Abstract

Claims (77)

1. A display device comprising a display portion,

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

wherein the light-receiving element comprises a first pixel electrode, a first light-emitting layer, an active layer, and a common electrode,

wherein the first light-emitting layer and the active layer are positioned between the first pixel electrode and the common electrode,

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

wherein the first light-emitting layer and the active layer are positioned between the second pixel electrode and the common electrode,

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

wherein the second light-emitting layer is positioned between the third pixel electrode and the common electrode,

wherein the first light-emitting layer emits light of a first color, and

wherein the active layer comprises an organic compound which absorbs light with a wavelength shorter than a wavelength of the light of the first color.

2. The display device according to claim 1 ,

wherein the light-receiving element and the first light-emitting element further comprise a common layer, and

wherein the common layer is positioned between the first pixel electrode and the common electrode and between the second pixel electrode and the common electrode.

3. The display device according to claim 1 ,

wherein the display portion further comprises a lens,

wherein the lens comprises a portion overlapping with the light-receiving element, and

wherein light transmitted through the lens enters the light-receiving element.

4. The display device according to claim 1 ,

wherein the display portion further comprises a bank,

wherein the bank covers an end portion of the first pixel electrode and an end portion of the second pixel electrode, and

wherein the bank is configured to electrically isolate the first pixel electrode and the second pixel electrode.

5. The display device according to claim 4 ,

wherein the bank is configured to absorb at least part of light emitted by the first light-emitting element.

6. The display device according to claim 5 ,

wherein the display portion further comprises a colored layer, and

wherein the colored layer comprises a portion in contact with one or both of a top surface and a side surface of the bank.

7. The display device according to claim 6 ,

wherein the colored layer comprises a color filter or a black matrix.

8. The display device according to claim 4 ,

wherein the display portion further comprises a lens,

wherein the lens comprises a portion overlapping with the light-receiving element, and

wherein light transmitted through the lens enters the light-receiving element.

9. The display device according to claim 8 ,

wherein the display portion further comprises a light-blocking layer,

wherein an end portion of the light-blocking layer overlaps with an end portion of the lens, and

wherein the light-blocking layer overlaps with the bank.

10. The display device according to claim 1 ,

wherein the display portion has flexibility.

11. A display module comprising:

the display device according to claim 1 ; and

a connector or an integrated circuit.

12. An electronic device comprising:

the display module according to claim 11 ; and

at least one of an antenna, a battery, a housing, a camera, a speaker, a microphone, and an operation button.

13. A display device comprising a display portion,

wherein the display portion comprises a light-receiving element, a first light-emitting element, a second light-emitting element, a first coloring layer, and a second coloring layer,

wherein the light-receiving element comprises a first pixel electrode, a first light-emitting layer, an active layer, and a common electrode,

wherein the first light-emitting layer and the active layer are positioned between the first pixel electrode and the common electrode,

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

wherein the first light-emitting layer and the active layer are positioned between the second pixel electrode and the common electrode,

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

wherein the second light-emitting layer is positioned between the third pixel electrode and the common electrode,

wherein light emitted by the first light-emitting element is extracted from the display portion through the first coloring layer as light of a first color,

wherein light emitted by the second light-emitting element is extracted from the display portion through the second coloring layer as light of a second color, and

wherein the active layer comprises an organic compound which absorbs light with a wavelength shorter than a wavelength of the light of the first color.

14. The display device according to claim 13 ,

wherein the display portion further comprises a third light-emitting element and a third coloring layer,

wherein the third light-emitting element comprises a fourth pixel electrode, a third light-emitting layer, and the common electrode,

wherein the third light-emitting layer is positioned between the second pixel electrode and the common electrode, between the third pixel electrode and the common electrode, and between the fourth pixel electrode and the common electrode, and

wherein light emitted by the third light-emitting element is extracted from the display portion through the third coloring layer as light of a third color.

15. The display device according to claim 13 ,

wherein the display portion has flexibility.

16. The display device according to claim 13 ,

wherein the light-receiving element and the first light-emitting element further comprise a common layer, and

wherein the common layer is positioned between the first pixel electrode and the common electrode and between the second pixel electrode and the common electrode.

17. The display device according to claim 13 ,

wherein the display portion further comprises a lens,

wherein the lens comprises a portion overlapping with the light-receiving element, and

wherein light transmitted through the lens enters the light-receiving element.

18. The display device according to claim 13 ,

wherein the display portion further comprises a bank,

wherein the bank covers an end portion of the first pixel electrode and an end portion of the second pixel electrode, and

wherein the bank is configured to electrically isolate the first pixel electrode and the second pixel electrode.

19. The display device according to claim 18 ,

wherein the bank is configured to absorb at least part of light emitted by the first light-emitting element.

20. The display device according to claim 19 ,

wherein the bank is configured to absorb at least part of light emitted by the first light-emitting element.

Assignments (2)

Priority Claims (2)

Continuity (1)

References Cited (60)