Granted Patent B2

US 12,342,707 · App. 18/685,268 · Granted Jun 24, 2025

Inventors: Hisao Ikeda (Zama, JP); Ryo Hatsumi (Hadano, JP); Daiki Nakamura (Atsugi, JP); Takeya Hirose (Atsugi, JP)

Assignee: Semiconductor Energy Laboratory Co., Ltd.

H10K59/879G06V40/1318H10K30/87H10K39/34H10K59/8792G06F3/042G06F2203/04108

Abstract

Claims (47)

1. A display device comprising:

a first pixel comprising a light-emitting device;

a second pixel comprising a light-receiving device and a lens overlapping the light-receiving device; and

a first substrate over the lens, a first surface of the first substrate having a light-blocking layer,

wherein the lens is provided in an opening portion of the light-blocking layer on the first surface of the first substrate,

wherein the light-emitting device and the light-receiving device share a common electrode,

wherein a width of the opening portion is greater than a width of a light-receiving portion of the light-receiving device,

wherein a cross section of the lens in a thickness direction including an optical axis has a substantially trapezoidal shape,

wherein a first surface of the lens comprises a leg of the substantially trapezoidal shape and has a convex shape,

wherein a second surface of the lens comprises an upper base of the substantially trapezoidal shape and is provided to face the light-receiving portion,

wherein a third surface of the lens comprises a lower base of the substantially trapezoidal shape and is in contact with the first surface of the first substrate,

wherein a width of the lower base is greater than a width of the upper base, and

wherein the first pixel and the second pixel are provided to be adjacent to each other.

2. The display device according to claim 1 , wherein the light-emitting device and the light-receiving device share a common layer provided under the common electrode.

3. The display device according to claim 1 , wherein the second surface of the lens comprises a region having a convex shape.

4. The display device according to claim 1 , wherein the lens and the light-receiving device are separately provided so that a center of the lens and a center of the light-receiving device overlap with each other.

5. The display device according to claim 1 , wherein the light-emitting device has a tandem structure.

6. The display device according to claim 5 ,

wherein the tandem light-emitting device comprises a plurality of light-emitting units, and

wherein the plurality of light-emitting units emit light of the same color.

7. An electronic device comprising the display device according to claim 1 , wherein the electronic device obtains an image of a fingerprint using the light-receiving device to perform fingerprint authentication.

8. A display device comprising:

a first pixel comprising a light-emitting device and a first lens overlapping the light-emitting device;

a second pixel comprising a light-receiving device and a second lens overlapping with the light-receiving device; and

a first substrate over the first lens and the second lens, a first surface of the first substrate having a light-blocking layer,

wherein the light-emitting device and the light-receiving device share a common electrode,

wherein the first lens is provided in a first opening portion of the light-blocking layer on the first surface of the first substrate,

wherein the second lens is provided in a second opening portion of the light-blocking layer on the first surface of the first substrate,

wherein a width of the first opening portion is greater than a width of a light-emitting portion of the light-emitting device,

wherein a width of the second opening portion is greater than a width of a light-receiving portion of the light-receiving device,

wherein a cross section of each of the first lens and the second lens in a thickness direction including an optical axis has a substantially trapezoidal shape,

wherein a first surface of each of the first lens and the second lens comprises a leg of the substantially trapezoidal shape and has a convex shape,

wherein a second surface of the second lens comprises an upper base of the substantially trapezoidal shape and is provided to face the light-receiving portion,

wherein a third surface of the second lens comprises a lower base of the substantially trapezoidal shape and is in contact with the first surface of the first substrate,

wherein a width of the lower base is greater than a width of the upper base, and

wherein the first pixel and the second pixel are provided to be adjacent to each other.

9. The display device according to claim 8 , wherein the light-emitting device and the light-receiving device share a common layer provided under the common electrode.

10. The display device according to claim 8 , wherein a second surface of the first lens comprises an upper base of the substantially trapezoidal shape and is provided to face the light-emitting portion.

11. The display device according to claim 8 , wherein the second surface of the second lens comprise a region having a convex shape.

12. The display device according to claim 8 ,

wherein the first lens and the light-emitting device are separately provided in such a manner that a center of the first lens and a center of the light-emitting device overlap with each other, and

wherein the second lens and the light-receiving device are separately provided in such a manner that a center of the second lens and a center of the light-receiving device overlap with each other.

13. The display device according to claim 8 , wherein the light-emitting device has a tandem structure.

14. The display device according to claim 13 ,

wherein the tandem light-emitting device comprises a plurality of light-emitting units, and

wherein the plurality of light-emitting units emit light of the same color.

15. An electronic device comprising the display device according to claim 8 , wherein the electronic device obtains an image of a fingerprint using the light-receiving device to perform fingerprint authentication.

Assignments (1)

Priority Claims (2)

Continuity (1)

References Cited (88)