Granted Patent B2

US 11,394,014 · App. 17/001,809 · Granted Jul 19, 2022

Inventors: Daisuke Kubota (Atsugi, JP); Ryo Hatsumi (Hadano, JP); Ryo Yamauchi (Atsugi, JP)

Assignee: Semiconductor Energy Laboratory Co., Ltd.

H01L51/5284H01L27/3218H01L27/3234H01L51/5246H01L2251/5338

Abstract

Claims (116)

1. A display unit comprising:

a first light-emitting device configured to emit light of a first color;

a second light-emitting device configured to emit light of the first color;

a first light-receiving device; and

a light-blocking layer over the first light-emitting device, the second light-emitting device and the first light-receiving device, the light-blocking layer comprising a first opening,

wherein the light emitted from each of the first light-emitting device and the second light-emitting device is configured to be received by the first light-receiving device through the first opening,

wherein a is defined as a shortest distance from the first light-emitting device to the first light-receiving device in a top view of the display unit,

wherein b is defined as a shortest distance from the second light-emitting device to the first light-receiving device in the top view,

wherein c is defined as a shortest distance from the first light-emitting device to the first opening in the top view,

wherein d is defined as a shortest distance from the second light-emitting device to the first opening in the top view,

wherein an absolute value |a−b| is smaller than an absolute value |c−d|, and

wherein c is shorter than d.

2. The display unit according to claim 1 , wherein a is equal to or substantially equal to b.

3. The display unit according to claim 1 , wherein the first light-emitting device is the closest to the first light-receiving device among the group consisting of the first light-emitting device and the second light-emitting device.

4. The display unit according to claim 1 ,

wherein the first light-emitting device comprises:

a first pixel electrode;

a common electrode; and

a first light-emitting layer between the first pixel electrode and the common electrode,

wherein the first light-receiving device comprises:

a second pixel electrode;

the common electrode; and

an active layer between the second pixel electrode and the common electrode, and

wherein the active layer comprises an organic compound.

5. The display unit according to claim 4 ,

wherein the first light-emitting device further comprises a first layer between the first pixel electrode and the common electrode, and

wherein the first light-receiving device further comprises the first layer between the second pixel electrode and the common electrode.

6. The display unit according to claim 4 , further comprising a resin layer and a substrate,

wherein each of the resin layer and the light-blocking layer is positioned between the common electrode and the substrate,

wherein the resin layer comprises a second opening,

wherein the second opening and the first light-receiving device overlap each other,

wherein the resin layer comprises a portion overlapping the first light-emitting device, and

wherein the light-blocking layer comprises a portion positioned between the common electrode and the resin layer.

7. The display unit according to claim 6 , wherein the light-blocking layer covers at least part of the second opening and at least part of a side surface of the resin layer exposed at the second opening.

8. The display unit according to claim 6 , further comprising an adhesive layer between the common electrode and the substrate,

wherein each of the resin layer and the light-blocking layer is positioned between the adhesive layer and the substrate,

wherein a first portion of the adhesive layer and the first light-receiving device overlap each other,

wherein a second portion of the adhesive layer and the first light-emitting device overlap each other, and

wherein the first portion is thicker than the second portion.

9. The display unit according to claim 4 , further comprising a resin layer and a substrate,

wherein each of the resin layer and the light-blocking layer is positioned between the common electrode and the substrate,

wherein the resin layer has an island shape,

wherein the resin layer and the first light-emitting device overlap each other,

wherein the light-blocking layer comprises a portion positioned between the common electrode and the resin layer, and

wherein at least part of light having passed through the substrate enters the first light-receiving device without passing through the resin layer.

10. The display unit according to claim 9 , wherein the light-blocking layer covers at least part of a side surface of the resin layer.

11. The display unit according to claim 1 , further comprising a plurality of light-receiving devices including the first light-receiving device,

wherein the display unit has:

a first mode to capture an image by all the plurality of light-receiving devices, and

a second mode to capture an image by a part of the plurality of light-receiving devices.

12. The display unit according to claim 1 , wherein the display unit has flexibility.

13. A display module comprising:

the display unit according to claim 1 ; and

a connector or an integrated circuit.

14. An electronic device comprising:

the display module according to claim 13 ; and

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

15. A display unit comprising:

a first light-emitting device configured to emit light of a first color;

a second light-emitting device configured to emit light of the first color;

a first light-emitting and light-receiving device configured to emit light of a second color; and

a light-blocking layer over the first light-emitting device, the second light-emitting device and the first light-emitting and light-receiving device, the light-blocking layer comprising a first opening,

wherein the light emitted from each of the first light-emitting device and the second light-emitting device is configured to be received by the first light-emitting and light-receiving device through the first opening,

wherein a is defined as a shortest distance from the first light-emitting device to the first light-emitting and light-receiving device in a top view of the display unit,

wherein b is defined as a shortest distance from the second light-emitting device to the first light-emitting and light-receiving device in the top view,

wherein c is defined as a shortest distance from the first light-emitting device to the first opening in the top view,

wherein d is defined as a shortest distance from the second light-emitting device to the first opening in the top view,

wherein an absolute value |a−b| is smaller than an absolute value |c−d|, and

wherein c is shorter than d.

16. The display unit according to claim 15 , wherein a is equal to or substantially equal to b.

17. The display unit according to claim 15 , wherein the first light-emitting device is the closest to the first light-emitting and light-receiving device among the group consisting of the first light-emitting device and the second light-emitting device.

18. The display unit according to claim 15 ,

wherein the first light-emitting device comprises:

a first pixel electrode;

a common electrode; and

a first light-emitting layer between the first pixel electrode and the common electrode,

wherein the light-receiving device comprises:

a second pixel electrode;

the common electrode;

a second light-emitting layer between the second pixel electrode and the common electrode; and

an active layer between the second pixel electrode and the common electrode, and

wherein the active laser comprises an organic compound.

19. The display unit according to claim 18 ,

wherein the first light-emitting device further comprises a first layer between the first pixel electrode and the common electrode, and

wherein the first light-emitting and light-receiving device further comprises the first layer between the second pixel electrode and the common electrode.

20. The display unit according to claim 18 , further comprising a resin layer and a substrate,

wherein each of the resin layer and the light-blocking layer is positioned between the common electrode and the substrate,

wherein the resin layer comprises a second opening,

wherein the second opening and the first light-receiving device overlap each other,

wherein the resin layer comprises a portion overlapping the first light-emitting device, and

wherein the light-blocking layer comprises a portion positioned between the common electrode and the resin layer.

21. The display unit according to claim 20 , wherein the light-blocking layer covers at least part of the second opening and at least part of a side surface of the resin layer exposed at the second opening.

22. The display unit according to claim 20 , further comprising an adhesive layer between the common electrode and the substrate,

wherein each of the resin layer and the light-blocking layer is positioned between the adhesive layer and the substrate,

wherein a first portion of the adhesive layer and the first light-emitting and light-receiving device overlap each other,

wherein a second portion of the adhesive layer and the first light-emitting device overlap each other, and

wherein the first portion is thicker than the second portion.

23. The display unit according to claim 18 , further comprising a resin layer and a substrate,

wherein each of the resin layer and the light-blocking layer is positioned between the common electrode and the substrate,

wherein the resin layer has an island shape,

wherein the resin layer and the first light-emitting device overlap each other,

wherein the light-blocking layer comprises a portion positioned between the common electrode and the resin layer, and

wherein at least part of light having passed through the substrate enters the first light-receiving device without passing through the resin layer.

24. The display unit according to claim 23 , wherein the light-blocking layer covers at least part of a side surface of the resin layer.

25. The display unit according to claim 15 , further comprising a plurality of light-emitting and light-receiving devices including the first light-emitting and light-receiving device,

wherein the display unit has:

a first mode to capture an image by all the plurality of light-emitting and light-receiving devices, and

a second mode to capture an image by a part of the plurality of light-emitting and light-receiving devices.

26. The display unit according to claim 15 , further comprising a plurality of light-emitting and light-receiving devices including the first light-emitting and light-receiving device,

wherein the display unit has:

a first mode for performing display;

a second mode for performing image capturing; and

a third mode for simultaneously performing display and image capturing,

wherein, in the first mode, the display is performed using the first light-emitting device, the second light-emitting device, and all the plurality of light-emitting and light-receiving devices,

wherein, in the second mode, the image capturing is performed by emission from each of the first light-emitting device and the second light-emitting device and by receiving the light using all the plurality of light-emitting and light-receiving devices, and

wherein, in the third mode, image capturing is performed by emission from the first light-emitting device and receiving the light using part of the plurality of light-emitting and light-receiving devices, and the display is performed using the second light-emitting device and the other part of the plurality of light-emitting and light-receiving devices.

Assignments (1)

Priority Claims (1)

Continuity (1)

Cited By (9)

US 12,342,707 US 12,386,174 US 12,478,273 US 12,514,004 US 12,552,392 US 12,660,472 US 12,676,028 US 12,681,344 US 12,727,330