Granted Patent B2

US 12,349,576 · App. 17/766,859 · Granted Jul 1, 2025

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

Assignee: Semiconductor Energy Laboratory Co., Ltd.

H10K59/65H10K59/351H10K59/352H10K59/353H10K59/40H10K59/876

Abstract

Claims (80)

1. A display apparatus comprising:

a first subpixel, a second subpixel, and a third subpixel,

wherein the first subpixel comprises a first light-emitting device configured to emit light with a first color,

wherein the second subpixel comprises a light-receiving device configured to receive light emitted from the first light-emitting device and reflected by an object on or adjacent to a surface of the display apparatus,

wherein the third subpixel comprises a second light-emitting device configured to emit light with a second color,

wherein the light with the first color has a wavelength shorter than or equal to blue light,

wherein the second color is blue,

wherein the wavelength of the light with the first color is shorter than a wavelength of the light with the second color,

wherein the first subpixel is configured to be used as a light source for touch detection, and

wherein the third subpixel is configured to be used for image display.

2. The display apparatus according to claim 1 ,

wherein the first light-emitting device comprises a first light-emitting layer and a first optical adjustment layer under the first light-emitting layer,

wherein the second light-emitting device comprises a second light-emitting layer and a second optical adjustment layer under the second light-emitting layer, and

wherein a thickness of the first optical adjustment layer is different from a thickness of the second optical adjustment layer.

3. The display apparatus according to claim 1 ,

wherein the first subpixel further comprises a coloring layer,

wherein the coloring layer and a light-emitting region of the first light-emitting device overlap each other, and

wherein the coloring layer is configured to absorb part of the light emitted from the first light-emitting device.

4. The display apparatus according to claim 1 , wherein the first light-emitting device and the second light-emitting device comprise a same light-emitting layer.

5. The display apparatus according to claim 1 ,

wherein the first light-emitting device comprises a first light-emitting layer including a first light-emitting substance,

wherein the second light-emitting device comprises a second light-emitting layer including a second light-emitting substance, and

wherein the first light-emitting substance is configured to emit shorter-wavelength light than the second light-emitting substance.

6. The display apparatus according to claim 1 ,

wherein the light-receiving device is configure to receive the light emitted from the first light-emitting device and to convert the light into an electric signal.

7. The display apparatus according to claim 1 ,

wherein the second subpixel comprises a light-emitting and light-receiving device,

wherein the light-emitting and light-receiving device is configured:

to emit light; and

to receive the light emitted from the first light-emitting device and to convert the light into an electric signal, and

wherein the light emitted from the light-emitting and light-receiving device has a longer wavelength than the light emitted from the first light-emitting device.

8. The display apparatus according to claim 1 ,

wherein the first subpixel and the second subpixel belong to a first pixel, and

wherein the third subpixel belongs to a second pixel.

9. The display apparatus according to claim 1 ,

wherein the first subpixel belongs to a first pixel,

wherein the second subpixel belongs to a second pixel, and

wherein the third subpixel belongs to a third pixel.

10. The display apparatus according to claim 9 ,

wherein the first pixel further comprises a fourth subpixel,

wherein the second subpixel comprises a fifth subpixel,

wherein the third subpixel comprises a sixth subpixel, and

wherein the fourth subpixel, the fifth subpixel and the sixth subpixel are configured to emit light with a same color.

11. An electronic device comprising:

the display apparatus according to claim 1 .

12. A display apparatus comprising:

a first subpixel, a second subpixel, and a third subpixel,

wherein the first subpixel comprises a first light-emitting device configured to emit light with a first color,

wherein the second subpixel comprises a light-receiving device configured to receive light emitted from the first light-emitting device and reflected by an object on or adjacent to a surface of the display apparatus,

wherein the third subpixel comprises a second light-emitting device configured to emit light with a second color,

wherein the second color is blue,

wherein a wavelength of the light with the first color is shorter than a wavelength of the light with the second color,

wherein the first subpixel is configured to be used as a light source for touch detection,

wherein the third subpixel is configured to be used for image display,

wherein the first light-emitting device comprises:

a first pixel electrode;

a first light-emitting layer over the first pixel electrode; and

a first part of a common electrode overlapping with the first light-emitting layer, and

wherein the light-receiving device comprises:

a second pixel electrode;

an active layer over the second pixel electrode; and

a second part of the common electrode overlapping with the active layer.

13. The display apparatus according to claim 12 ,

wherein the first light-emitting device comprises a first optical adjustment layer under the first light-emitting layer,

wherein the second light-emitting device comprises a second light-emitting layer and a second optical adjustment layer under the second light-emitting layer, and

wherein a thickness of the first optical adjustment layer is different from a thickness of the second optical adjustment layer.

14. The display apparatus according to claim 13 , wherein the first light-emitting layer and the second light-emitting layer comprise a same light-emitting substance.

15. The display apparatus according to claim 12 ,

wherein the first light-emitting layer includes a first light-emitting substance,

wherein the second light-emitting device comprises a second light-emitting layer including a second light-emitting substance, and

wherein the first light-emitting substance is configured to emit shorter-wavelength light than the second light-emitting substance.

16. The display apparatus according to claim 12 ,

wherein the first subpixel and the second subpixel belong to a first pixel, and

wherein the third subpixel belongs to a second pixel.

17. The display apparatus according to claim 12 ,

wherein the first subpixel belongs to a first pixel,

wherein the second subpixel belongs to a second pixel, and

wherein the third subpixel belongs to a third pixel.

18. An electronic device comprising:

the display apparatus according to claim 12 .

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (105)