Display device and electronic device having multiple overlapping display panels

Patent metadata

Field	Value
Publication number	US-11069747-B2
Application number	US-202016862787-A
Country	US
Kind code	B2
Filing date	Apr 30, 2020
Priority date	Feb 11, 2014
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

To provide a display device that is suitable for increasing in size, a display device in which display unevenness is suppressed, or a display device that can display an image along a curved surface. The display device includes a first display panel and a second display panel each including a pair of substrates. The first display panel and the second display panel each include a first region which can transmit visible light, a second region which can block visible light, and a third region which can perform display. The third region of the first display panel and the first region of the second display panel overlap each other. The third region of the first display panel and the second region of the second display panel do not overlap each other.

First claim

The invention claimed is:

1. A display device comprising:
a first flexible display panel;
a second flexible display panel;
a resin layer; and
a protective substrate,
wherein the first flexible display panel comprises a first region configured to display an image, a second region having light-transmitting property, and a third region provided with a first flexible printed circuit (FPC),
wherein the second flexible display panel comprises a fourth region configured to display an image, a fifth region having light-transmitting property, and a sixth region provided with a second FPC,
wherein the first region is positioned between the second region and the third region,
wherein the fourth region is positioned between the fifth region and the sixth region,
wherein the first region overlaps with the fifth region,
wherein the fifth region is located between the first region and the protective substrate,
wherein the resin layer has a region in contact with the first region, the second region, the fourth region, and the fifth region,
wherein the protective substrate has a region that overlaps the first region and the fourth region with the resin layer in-between, and
wherein the third region has a curved region.

2. The display device according to claim 1 , wherein the protective substrate is a flexible substrate.

3. The display device according to claim 1 , wherein the protective substrate is a touch panel.

4. The display device according to claim 1 ,
wherein the resin layer is bonding the protective substrate with each of the first flexible display panel and the second flexible display panel.

5. The display device according to claim 1 ,
wherein a thickness of each of the first flexible display panel and the second display panel is 1 mm or less and 100 μm or more.

6. A display device comprising:
a first flexible display panel;
a second flexible display panel;
a resin layer; and
a protective substrate,
wherein the first flexible display panel comprises a first region configured to display an image, a second region having light-transmitting property, and a third region provided with a first flexible printed circuit (FPC),
wherein the second flexible display panel comprises a fourth region configured to display an image, a fifth region having light-transmitting property, and a sixth region provided with a second FPC,
wherein the first region is positioned between the second region and the third region,
wherein the fourth region is positioned between the fifth region and the sixth region,
wherein the first region overlaps with the fifth region,
wherein the fifth region is located between the first region and the protective substrate,
wherein the resin layer has a region in contact with the first region, the second region, the fourth region, and the fifth region,
wherein the protective substrate has a region that overlaps the first region and the fourth region with the resin layer in-between,
wherein the third region of the first flexible display panel has a curved region, and
wherein the first FPC is provided in the third region on a side opposite to a display surface.

7. The display device according to claim 6 , wherein the protective substrate is a flexible substrate.

8. The display device according to claim 6 , wherein the protective substrate is a touch panel.

9. The display device according to claim 6 ,
wherein the resin layer is bonding the protective substrate with each of the first flexible display panel and the second flexible display panel.

10. The display device according to claim 6 ,
wherein a thickness of each of the first flexible display panel and the second display panel is 1 mm or less and 100 μm or more.

11. A display device comprising:
a first flexible display panel;
a second flexible display panel;
a resin layer; and
a protective substrate,
wherein the first flexible display panel comprises a first region configured to display an image, a second region having light-transmitting property, and a third region provided with a first flexible printed circuit (FPC),
wherein the second flexible display panel comprises a fourth region configured to display an image, a fifth region having light-transmitting property, and a sixth region provided with a second FPC,
wherein the first region is positioned between the second region and the third region,
wherein the fourth region is positioned between the fifth region and the sixth region,
wherein the first region overlaps with the fifth region,
wherein the fifth region is located between the first region and the protective substrate,
wherein the resin layer has a region in contact with the first region, the second region, the fourth region, and the fifth region,
wherein the protective substrate has a region that overlaps the first region and the fourth region with the resin layer in-between,
wherein the third region of the first flexible display panel has a curved region, and
wherein the first FPC is provided in a region overlapping with the fourth region of the second flexible display panel.

12. The display device according to claim 11 , wherein the protective substrate is a flexible substrate.

13. The display device according to claim 11 , wherein the protective substrate is a touch panel.

14. The display device according to claim 11 ,
wherein the resin layer is bonding the protective substrate with each of the first flexible display panel and the second flexible display panel.

15. The display device according to claim 11 ,
wherein a thickness of each of the first flexible display panel and the second display panel is 1 mm or less and 100 μm or more.

Assignees

• Semiconductor Energy Lab

Inventors

• Miyake Hiroyuki
• Ikeda Hisao

Classifications

• H10W72/701

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• Y02E10/549

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• H10K2102/311

  Flexible OLED · CPC title

• H10K59/86 Primary

  Series electrical configurations of multiple OLEDs · CPC title

• H10K59/1315

  comprising structures specially adapted for lowering the resistance · CPC title