IP Library Granted Patent US 12,334,480
Granted Patent B2
US 12,334,480 · App. 18/679,945 · Granted Jun 17, 2025

Display device, display module, and electronic device

Inventors: Kazunori Watanabe (Tokyo, JP); Koji Kusunoki (Kanagawa, JP); Taiki Nonaka (Kanagawa, JP); Hiroki Adachi (Tochigi, JP); Koichi Takeshima (Tochigi, JP)
Assignee: Semiconductor Energy Laboratory Co., Ltd.
H01L25/0753H01L27/1207H01L27/1225H01L29/78648H01L29/7869H01L33/62
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Quick Facts
Patent No.
US 12,334,480
App. No.
18/679,945
Granted
Jun 17, 2025
Kind
B2
Abstract

A display device with high display quality is provided. A display device with low power consumption is provided. In the display device, a first transistor, a second transistor, a first conductive layer, and a light-emitting diode package are included in a pixel. The light-emitting diode package includes a first light-emitting diode, a second light-emitting diode, a second conductive layer, a third conductive layer, and a fourth conductive layer. The first light-emitting diode includes a first electrode and a second electrode. The second light-emitting diode includes a third electrode and a fourth electrode. One of a source and a drain of the first transistor is electrically connected to the first electrode through the second conductive layer. One of a source and a drain of the second transistor is electrically connected to the third electrode through the third conductive layer. The first conductive layer is electrically connected to each of the second electrode and the fourth electrode through the fourth conductive layer. A constant potential is supplied to the first conductive layer.

Claims (55)

1. A display device comprising:

a pixel comprising a first transistor, a second transistor, a first conductive layer and a light-emitting diode package,

wherein the light-emitting diode package comprises a first light-emitting diode, a second light-emitting diode, a second conductive layer, a third conductive layer and a fourth conductive layer,

wherein the first light-emitting diode comprises a first electrode and a second electrode,

wherein the second light-emitting diode comprises a third electrode and a fourth electrode,

wherein one of a source and a drain of the first transistor is electrically connected to the first electrode through the second conductive layer,

wherein one of a source and a drain of the second transistor is electrically connected to the third electrode through the third conductive layer,

wherein the first conductive layer is electrically connected to the second electrode through the fourth conductive layer,

wherein the first conductive layer is electrically connected to the fourth electrode through the fourth conductive layer,

wherein a constant potential is supplied to the first conductive layer,

wherein the fourth conductive layer is electrically connected to the second electrode through a first wire,

wherein the fourth conductive layer is electrically connected to the fourth electrode through a second wire, and

wherein the third conductive layer is electrically connected to the third electrode through a third wire.

2. The display device according to claim 1 , wherein each of the first light-emitting diode and the second light-emitting diode is a mini light-emitting diode.

3. The display device according to claim 1 , wherein each of the first light-emitting diode and the second light-emitting diode is a micro light-emitting diode.

4. The display device according to claim 1 , wherein an emission of the first light-emitting diode has a different color from an emission of the second light-emitting diode.

5. The display device according to claim 1 , wherein each of the first transistor and the second transistor comprises a metal oxide in a channel formation region.

6. The display device according to claim 1 ,

wherein the second conductive layer and the first electrode are in contact with each other.

7. A display module comprising:

the display device according to claim 1 ; and

one of a connector and an integrated circuit.

8. An electronic device comprising:

the display module according to claim 7 ; and

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

9. A display device comprising:

a pixel comprising a first transistor, a second transistor, a third transistor, a first conductive layer and a light-emitting diode package,

wherein the light-emitting diode package comprises a first light-emitting diode, a second light-emitting diode, a third light-emitting diode, a second conductive layer, a third conductive layer, a fourth conductive layer and a fifth conductive layer,

wherein the first light-emitting diode comprises a first electrode and a second electrode,

wherein the second light-emitting diode comprises a third electrode and a fourth electrode,

wherein the third light-emitting diode comprises a fifth electrode and a sixth electrode,

wherein one of a source and a drain of the first transistor is electrically connected to the first electrode through the second conductive layer,

wherein one of a source and a drain of the second transistor is electrically connected to the third electrode through the third conductive layer,

wherein one of a source and a drain of the third transistor is electrically connected to the fifth electrode through the fifth conductive layer,

wherein the first conductive layer is electrically connected to the second electrode through the fourth conductive layer,

wherein the first conductive layer is electrically connected to the fourth electrode through the fourth conductive layer,

wherein the first conductive layer is electrically connected to the sixth electrode through the fourth conductive layer,

wherein a constant potential is supplied to the first conductive layer,

wherein the fourth conductive layer is electrically connected to the second electrode through a first wire,

wherein the fourth conductive layer is electrically connected to the fourth electrode through a second wire, and

wherein the third conductive layer is electrically connected to the third electrode through a third wire.

10. The display device according to claim 9 , wherein each of the first light-emitting diode, the second light-emitting diode and the third light-emitting diode is a mini light-emitting diode.

11. The display device according to claim 9 , wherein each of the first light-emitting diode, the second light-emitting diode and the third light-emitting diode is a micro light-emitting diode.

12. The display device according to claim 9 ,

wherein the first light-emitting diode is configured to emit red light,

wherein the second light-emitting diode is configured to emit green light, and

wherein the third light-emitting diode is configured to emit blue light.

13. The display device according to claim 9 , wherein each of the first transistor, the second transistor, and the third transistor comprises a metal oxide in a channel formation region.

14. The display device according to claim 9 , wherein the second conductive layer and the first electrode are in contact with each other.

15. A display module comprising:

the display device according to claim 9 ; and

one of a connector and an integrated circuit.

16. An electronic device comprising:

the display module according to claim 15 ; and

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

Priority Claims (1)
JP 2018-167554 · Sep 7, 2018 · national
Continuity (2)
Continuation 17270722
Related Publication 20240413130A1 · Dec 12, 2024
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