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

Patent metadata

Field	Value
Publication number	US-12200983-B2
Application number	US-202318387574-A
Country	US
Kind code	B2
Filing date	Nov 7, 2023
Priority date	Nov 18, 2008
Publication date	Jan 14, 2025
Grant date	Jan 14, 2025

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:
a driver circuit;
an EL panel; and
a touch panel provided over the EL panel,
wherein the EL panel comprises:
a light-emitting element over a flexible substrate; and
a transistor electrically connected to the light-emitting element over the flexible substrate,

wherein the EL panel comprises:
a first side and a second side in a short-side direction of the display device;
a planar region; and
a first curved region provided between the second side and the planar region,

wherein the planar region is provided in a longitudinal direction of the display device between the first curved region and the first side,
wherein the first curved region is provided at a first end portion in the longitudinal direction of the display device,
wherein the EL panel is fixed in a bent state in such a way that the second side overlaps with a back side of the EL panel,
wherein the EL panel does not have a second curved region between the first side and the planar region,
wherein the driver circuit is electrically connected to the transistor,
wherein the driver circuit overlaps with the back side of the EL panel, and
wherein the second side overlaps with a portion of the planar region and a portion of the touch panel.

2. A display device comprising:
a driver circuit; and
an EL panel, the EL panel comprising:
a light-emitting element over a flexible substrate; and
a transistor electrically connected to the light-emitting element over the flexible substrate,

wherein the EL panel comprises:
a first side and a second side in a short-side direction of the display device;
a planar region; and
a first curved region provided between the second side and the planar region,

wherein the planar region is provided in a longitudinal direction of the display device between the first curved region and the first side,
wherein the first curved region is provided at a first end portion in the longitudinal direction of the display device,
wherein the EL panel is fixed in a bent state in such a way that the second side overlaps with a back side of the EL panel,
wherein the EL panel does not have a second curved region between the first side and the planar region,
wherein the driver circuit is electrically connected to the transistor, and
wherein the driver circuit overlaps with the back side of the EL panel.

3. A display device comprising:
an EL panel, the EL panel comprising:
a light-emitting element over a flexible substrate; and
a transistor electrically connected to the light-emitting element over the flexible substrate,

wherein the EL panel comprises:
a first side and a second side in a short-side direction of the display device;
a planar region; and
a first curved region provided between the second side and the planar region,

wherein the planar region is provided in a longitudinal direction of the display device between the first curved region and the first side,
wherein the first curved region is provided at a first end portion in the longitudinal direction of the display device,
wherein the EL panel is fixed in a bent state in such a way that the second side overlaps with a back side of the EL panel, and
wherein the EL panel does not have a second curved region between the first side and the planar region.

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 Primary

  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

• H10K2102/311

  Flexible OLED · CPC title