Light-emitting device, method for manufacturing the same, and cellular phone

Patent metadata

Field	Value
Publication number	US-11289558-B2
Application number	US-202016930373-A
Country	US
Kind code	B2
Filing date	Jul 16, 2020
Priority date	Nov 18, 2008
Publication date	Mar 29, 2022
Grant date	Mar 29, 2022

Abstract

The invention relates to: a light-emitting device which includes a first flexible substrate having a first electrode, a light-emitting layer over the first electrode, and a second electrode with a projecting portion over the light-emitting layer and a second flexible substrate having a semiconductor circuit and a third electrode electrically connected to the semiconductor circuit, in which the projecting portion of the second electrode and the third electrode are electrically connected to each other; a method for manufacturing the light-emitting device; and a cellular phone which includes a housing incorporating the light-emitting device and having a longitudinal direction and a lateral direction, in which the light-emitting device is disposed on a front side and in an upper portion in the longitudinal direction of the housing.

First claim

What is claimed is:

1. A display device comprising:
an electroluminescence panel comprising a light-emitting element over a flexible substrate;
a touch sensor overlapping with the electroluminescence panel;
a transistor formed over the flexible substrate;
a first insulating film over the transistor; and
an electrode of the light-emitting element over the first insulating film and electrically connected to the transistor,
wherein the electroluminescence panel is bent in such as a way that an edge of the electroluminescence panel overlaps the electroluminescence panel with a curved region of the electroluminescence panel therebetween.

2. The display device according to claim 1 , wherein the transistor comprises a channel formation region which comprises an oxide semiconductor material.

3. The display device according to claim 1 , wherein the transistor comprises a channel formation region which comprises polycrystalline silicon.

4. The display device according to claim 1 ,
wherein the electroluminescence panel comprises a flat region with the curved region extending from the flat region, and
wherein the flat region is larger than the curved region.

5. The display device according to claim 4 ,
wherein the display device is not bendable, and
wherein the touch sensor is continuously provided from the flat region to an end of the curved region.

6. The display device according to claim 1 ,
wherein a part of the electroluminescence panel overlaps another part of the electroluminescence panel.

7. The display device according to claim 1 ,
wherein a part of the electroluminescence panel overlaps another part of the electroluminescence panel, and
wherein a circuit electrically connected to the electroluminescence panel is provided at a back side of the electroluminescence panel.

8. A display device comprising:
an electroluminescence panel comprising a light-emitting element over a flexible substrate;
a touch sensor overlapping with the electroluminescence panel;
a transistor formed over the flexible substrate;
a first insulating film over the transistor;
an electrode of the light-emitting element over the first insulating film,
wherein a display region of the display device comprises an edge portion of the electroluminescence panel that is bent in such as a way that the edge portion of the electroluminescence panel overlaps the electroluminescence panel with a curved region of the electroluminescence panel therebetween.

9. The display device according to claim 8 ,
wherein the electroluminescence panel comprises a flat region with the curved region extending from the flat region, and
wherein the flat region is larger than the curved region.

10. The display device according to claim 9 ,
wherein the display device is not bendable, and
wherein the touch sensor is continuously provided from the flat region to an end of the curved region.

11. The display device according to claim 9 ,
wherein a part of the electroluminescence panel overlaps another part of the electroluminescence panel.

12. The display device according to claim 8 ,
wherein a part of the electroluminescence panel overlaps another part of the electroluminescence panel, and
wherein a circuit electrically connected to the electroluminescence panel is provided at a back side of the electroluminescence panel.

13. A display device comprising:
an electroluminescence panel comprising a light-emitting element over a flexible substrate;
a touch sensor overlapping with the electroluminescence panel;
a transistor formed over the flexible substrate;
a first insulating film over the transistor; and
an electrode of the light-emitting element over the first insulating film and electrically connected to the transistor,
wherein the electroluminescence panel is configured to display images in a first direction and in a second direction different from the first direction, and
wherein the electroluminescence panel is bent in such a way that an edge of the electroluminescence panel overlaps the electroluminescence panel with a curved region of the electroluminescence panel therebetween.

14. The display device according to claim 13 , wherein the transistor comprises a channel formation region which comprises an oxide semiconductor material.

15. The display device according to claim 13 , wherein the transistor comprises a channel formation region which comprises polycrystalline silicon.

16. The display device according to claim 13 , wherein the transistor comprises a channel formation region which comprises an oxide semiconductor material.

17. The display device according to claim 13 , wherein the transistor comprises a channel formation region which comprises polycrystalline silicon.

18. The display device according to claim 13 ,
wherein the electroluminescence panel comprises a flat region with the curved region extending from the flat region, and
wherein the flat region is larger than the curved region.

19. The display device according to claim 18 ,
wherein the display device is not bendable, and
wherein the touch sensor is continuously provided from the flat region to an end of the curved region.

20. The display device according to claim 13 ,
wherein a part of the electroluminescence panel overlaps another part of the electroluminescence panel, and
wherein a circuit electrically connected to the electroluminescence panel is provided at a back side of the electroluminescence panel.

Assignees

• Semiconductor Energy Lab

Inventors

• Hatano Kaoru
• Seo Satoshi
• Yamazaki Shunpei

Classifications

• H10K59/874

  including getter material or desiccant · CPC title

• H10K59/871

  Self-supporting sealing arrangements · CPC title

• H10K59/127

  comprising two substrates, e.g. display comprising OLED array and TFT driving circuitry on different substrates · CPC title

• H04M1/0269 Primary

  mounted in a fixed curved configuration, e.g. display curved around the edges of the telephone housing · CPC title

• Y02E10/549

  Organic PV cells · CPC title