IP Library Granted Patent US 12,426,474
Granted Patent B2
US 12,426,474 · App. 17/742,689 · Granted Sep 23, 2025

Display apparatus, method for manufacturing display apparatus, display module, and electronic device

Inventors: Hajime Kimura (Atsugi, JP); Kentaro Hayashi (Atsugi, JP)
Assignee: Semiconductor Energy Laboratory Co., Ltd.
H10K59/60H10K39/34H10K50/85H10K59/65H10K59/80524H10K59/873H10K71/00H10K59/876H10K59/878
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Quick Facts
Patent No.
US 12,426,474
App. No.
17/742,689
Granted
Sep 23, 2025
Kind
B2
Abstract

A display apparatus capable of performing image capturing with high sensitivity is provided. The display apparatus includes a light-emitting element including a light-emitting layer, and a light-receiving element including a photoelectric conversion layer. A transflective electrode is provided over the light-emitting layer, and a transparent electrode is provided over the photoelectric conversion layer. With a structure where the transflective electrode does not overlap the photoelectric conversion layer, a reduction in light-receiving sensitivity of the light-receiving element can be prevented while a microcavity structure is used for the light-emitting element. Thus, the display apparatus can emit light with high color purity and perform image capturing with high sensitivity.

Claims (31)

1. A display apparatus comprising:

a first light-emitting layer;

a photoelectric conversion layer;

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

a second electrode over the photoelectric conversion layer,

wherein visible light transmittance of the second electrode is higher than visible light transmittance of the first electrode, and

wherein the photoelectric conversion layer comprises a region not overlapped by the first electrode.

2. The display apparatus according to claim 1 ,

wherein the first electrode is a transflective electrode, and

wherein the second electrode is a transparent electrode.

3. The display apparatus according to claim 1 , further comprising an optical adjustment layer under the first light-emitting layer.

4. The display apparatus according to claim 1 ,

wherein the photoelectric conversion layer comprises no region overlapped by the first electrode.

5. The display apparatus according to claim 1 ,

wherein the second electrode comprises a region overlapping the first light-emitting layer, and

wherein the second electrode comprises a region in contact with the first electrode.

6. The display apparatus according to claim 1 , further comprising a resin layer between the first light-emitting layer and the photoelectric conversion layer.

7. The display apparatus according to claim 6 , further comprising an insulating layer between the first light-emitting layer and the resin layer and between the photoelectric conversion layer and the resin layer.

8. The display apparatus according to claim 1 , further comprising a second light-emitting layer,

wherein the first electrode is positioned over the second light-emitting layer.

9. The display apparatus according to claim 8 , further comprising an organic layer between the first light-emitting layer and the first electrode and between the second light-emitting layer and the first electrode,

wherein the organic layer comprises at least one of a hole-injection layer, a hole-transport layer, a hole-blocking layer, an electron-blocking layer, an electron-transport layer, and an electron-injection layer.

10. The display apparatus according to claim 9 ,

wherein the organic layer is positioned between the photoelectric conversion layer and the second electrode.

11. The display apparatus according to claim 1 , further comprising a protective layer over the first electrode and the second electrode.

12. A display module comprising:

the display apparatus according to claim 1 ; and

at least one of a connector and an integrated circuit.

13. An electronic device comprising:

the display module according to claim 12 ; and

at least one of a battery, a camera, a speaker, and a microphone.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 12, 2022
From: KIMURA, HAJIME; HAYASHI, KENTARO
To: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Reel/Frame 059987/0488 →
Priority Claims (1)
JP 2021-089159 · May 27, 2021 · national
Continuity (1)
Related Publication 20220384536A1 · Dec 1, 2022
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