Granted Patent B2

US 12,620,258 · App. 18/910,164 · Granted May 5, 2026

Inventors: Shunpei Yamazaki (Setagaya, JP); Shingo Eguchi (Atsugi, JP); Daisuke Kubota (Atsugi, JP); Koji Kusunoki (Isehara, JP); Kazunori Watanabe (Machida, JP)

Assignee: Semiconductor Energy Laboratory Co., Ltd.

G06V40/1318H04M1/0264H10K39/34H10K59/40H10K59/8792H10K59/871H10K59/8722H10K59/873

Abstract

Claims (79)

1 . A display device comprising:

a first substrate;

a plurality of first light-emitting elements;

a plurality of second light-emitting elements;

a plurality of light-receiving elements;

a light-blocking layer;

a first resin layer; and

a second resin layer,

wherein the plurality of first light-emitting elements and the plurality of light-receiving elements are over the first substrate,

wherein the first resin layer is over the plurality of first light-emitting elements and the plurality of light-receiving elements,

wherein the light-blocking layer is over the first resin layer,

wherein the plurality of second light-emitting elements is over the light-blocking layer,

wherein the second resin layer is over the plurality of second light-emitting elements,

wherein each of the plurality of first light-emitting elements is configured to emit visible light toward the second resin layer,

wherein each of the plurality of second light-emitting elements is configured to emit invisible light toward the second resin layer,

wherein each of the plurality of light-receiving elements is a photoelectric conversion element having sensitivity to the visible light and the invisible light,

wherein in a plan view, the light-blocking layer comprises a portion between one of the plurality of first light-emitting elements and one of the plurality of light-receiving elements and a portion between another of the plurality of first light-emitting elements and another of the plurality of light-receiving elements,

wherein in a cross-sectional view, each of the plurality of second light-emitting elements overlaps with the light-blocking layer, and

wherein two adjacent second light-emitting elements of the plurality of second light-emitting elements are electrically connected with each other by a conductive layer.

2 . The display device according to claim 1 ,

wherein one of the two adjacent second light-emitting elements comprises a first island-shaped electrode,

wherein the other of the two adjacent second light-emitting elements comprises a second island-shaped electrode, and

wherein the first island-shaped electrode and the second island-shaped electrode are electrically connected with each other by the conductive layer.

3 . The display device according to claim 1 ,

wherein the invisible light is light having intensity in a wavelength range of greater than or equal to 750 nm and less than or equal to 900 nm.

4 . The display device according to claim 1 ,

wherein the one of the plurality of first light-emitting elements comprises a first pixel electrode, a first light-emitting layer, and a first electrode,

wherein the one of the plurality of light-receiving elements comprises a second pixel electrode, an active layer, and the first electrode,

wherein the first light-emitting layer and the active layer contain different organic compounds from each other,

wherein the first electrode comprises a portion overlapping with the first pixel electrode with the first light-emitting layer therebetween and a portion overlapping with the second pixel electrode with the active layer therebetween, and

wherein the first pixel electrode and the second pixel electrode contain the same conductive material.

5 . A display module comprising:

the display device according to claim 1 ; and

a connector or an integrated circuit.

6 . An electronic device comprising:

the display module according to claim 5 ; and

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

7 . The electronic device according to claim 6 ,

wherein the electronic device is configured to receive first reflective light by the one of the plurality of light-receiving elements when the visible light is emitted by the one of the plurality of first light-emitting elements, and

wherein the electronic device is configured to receive second reflective light by the one of the plurality of light-receiving elements when the invisible light is emitted by the one of the plurality of second light-emitting elements.

8 . A display device comprising:

a first substrate;

a plurality of first light-emitting elements;

a plurality of second light-emitting elements;

a plurality of light-receiving elements;

a light-blocking layer;

a first resin layer; and

a second resin layer,

wherein the plurality of first light-emitting elements and the plurality of light-receiving elements are over the first substrate,

wherein the first resin layer is over the plurality of first light-emitting elements and the plurality of light-receiving elements,

wherein the light-blocking layer is over the first resin layer,

wherein the plurality of second light-emitting elements is over the light-blocking layer,

wherein the second resin layer is over the plurality of second light-emitting elements,

wherein each of the plurality of first light-emitting elements is configured to emit visible light toward the second resin layer,

wherein each of the plurality of second light-emitting elements is configured to emit invisible light toward the second resin layer,

wherein each of the plurality of light-receiving elements is a photoelectric conversion element having sensitivity to the visible light and the invisible light,

wherein in a plan view, the light-blocking layer comprises a portion between one of the plurality of first light-emitting elements and one of the plurality of light-receiving elements and a portion between another of the plurality of first light-emitting elements and another of the plurality of light-receiving elements, and

wherein in a cross-sectional view, each of the plurality of second light-emitting elements overlaps with the light-blocking layer.

9 . The display device according to claim 8 ,

wherein one of the two adjacent second light-emitting elements comprises a first island-shaped electrode,

wherein the other of the two adjacent second light-emitting elements comprises a second island-shaped electrode, and

wherein the first island-shaped electrode and the second island-shaped electrode are electrically connected with each other.

10 . The display device according to claim 8 ,

wherein the invisible light is light having intensity in a wavelength range of greater than or equal to 750 nm and less than or equal to 900 nm.

11 . The display device according to claim 8 ,

wherein the one of the plurality of first light-emitting elements comprises a first pixel electrode, a first light-emitting layer, and a first electrode,

wherein the one of the plurality of light-receiving elements comprises a second pixel electrode, an active layer, and the first electrode,

wherein the first light-emitting layer and the active layer contain different organic compounds from each other,

wherein the first electrode comprises a portion overlapping with the first pixel electrode with the first light-emitting layer therebetween and a portion overlapping with the second pixel electrode with the active layer therebetween, and

wherein the first pixel electrode and the second pixel electrode contain the same conductive material.

12 . A display module comprising:

the display device according to claim 8 ; and

a connector or an integrated circuit.

13 . An electronic device comprising:

the display module according to claim 12 ; and

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

14 . The electronic device according to claim 13 ,

wherein the electronic device is configured to receive first reflective light by the one of the plurality of light-receiving elements when the visible light is emitted by the one of the plurality of first light-emitting elements, and

wherein the electronic device is configured to receive second reflective light by the one of the plurality of light-receiving elements when the invisible light is emitted by the one of the plurality of second light-emitting elements.

Priority Claims (1)

Continuity (2)

References Cited (51)