IP Library Granted Patent US 12,412,547
Granted Patent B2
US 12,412,547 · App. 18/244,676 · Granted Sep 9, 2025

Flexible display panel

Inventors: Shunpei Yamazaki (Tokyo, JP); Hiroki Adachi (Tochigi, JP); Shingo Eguchi (Kanagawa, JP)
Assignee: Semiconductor Energy Laboratory Co., Ltd.
G09G5/006G09G5/14H10K50/844H10K59/873H10K77/111G09G2354/00G09G2380/02H10K59/12H10K59/131
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Quick Facts
Patent No.
US 12,412,547
App. No.
18/244,676
Granted
Sep 9, 2025
Kind
B2
Abstract

A novel display panel that is highly convenient or reliable is provided. The display panel includes a first region and a second region. The second region is provided with a first component, and the second region can be bent with the first component facing outward. The first component includes a first elastic body and a second elastic body. The second elastic body includes an end portion part or the whole of which is covered with the first elastic body. The second elastic body has a higher elastic modulus than the first elastic body.

Claims (57)

1. A display panel comprising:

a first region, a second region, a third region, and a first component,

wherein the first region comprises a first part of a display region,

wherein the second region comprises a second part of the display region,

wherein the third region comprises a third part of the display region,

wherein the first component is provided on and in contact with an opposite side of a display surface of the display panel,

wherein the first component is in contact with at least the second region,

wherein the second region is capable of being bent with the first component facing outward,

wherein the first component comprises a first elastic body and a second elastic body,

wherein an elastic modulus of the second elastic body is different from an elastic modulus of the first elastic body,

wherein the first elastic body is in contact with a first surface of the second elastic body,

wherein a second surface of the second elastic body is in contact with the second region, the entire second surface which is in contact with the second region being continuous both when the second region is bent and the second region is not bent, and

wherein the second surface of the second elastic body is an opposite surface of the first surface of the second elastic body.

2. The display panel according to claim 1 , wherein the display region is configured to perform display in a direction in which the first component is not provided.

3. The display panel according to claim 1 , wherein the second region is capable of being bent with a curvature radius larger than 2 mm.

4. The display panel according to claim 1 , wherein a thickness of the second region is smaller than a thickness obtained by addition of 100 mm to a thickness of the first component.

5. The display panel according to claim 1 , wherein the first component becomes thinner toward end portions in a cross section.

6. The display panel according to claim 1 ,

wherein the first elastic body is in contact with the entire first surface of the second elastic body.

7. A display panel comprising:

a first region, a second region, a third region, and a first component,

wherein the first region comprises a first part of a display region,

wherein the second region comprises a second part of the display region,

wherein the third region comprises a third part of the display region,

wherein the first component is provided on and in contact with an opposite side of a display surface of the display panel,

wherein the first component is in contact with at least the second region,

wherein the second region is capable of being bent with the first component facing outward,

wherein the first component comprises a first elastic body and a second elastic body,

wherein the second elastic body has a higher elastic modulus than the first elastic body,

wherein the first elastic body is in contact with a first surface of the second elastic body,

wherein a second surface of the second elastic body is in contact with the second region, the entire second surface which is in contact with the second region being continuous both when the second region is bent and the second region is not bent, and

wherein the second surface of the second elastic body is an opposite surface of the first surface of the second elastic body.

8. The display panel according to claim 7 , wherein the display region is configured to perform display in a direction in which the first component is not provided.

9. The display panel according to claim 7 , wherein the second region is capable of being bent with a curvature radius larger than 2 mm.

10. The display panel according to claim 7 , wherein a thickness of the second region is smaller than a thickness obtained by addition of 100 mm to a thickness of the first component.

11. The display panel according to claim 7 , wherein the first component becomes thinner toward end portions in a cross section.

12. The display panel according to claim 7 ,

wherein the first elastic body is in contact with the entire first surface of the second elastic body.

13. A display panel comprising:

a first region, a second region, a third region, and a first component,

wherein the first region comprises a first part of a display region,

wherein the second region comprises a second part of the display region,

wherein the third region comprises a third part of the display region,

wherein the first component is provided on and in contact with an opposite side of a display surface of the display panel,

wherein the first component is in contact with at least the second region,

wherein the first component comprises a first elastic body and a second elastic body,

wherein an elastic modulus of the second elastic body is different from an elastic modulus of the first elastic body,

wherein the second elastic body comprises a first surface and a side surface,

wherein the first elastic body comprises a first surface and a second surface,

wherein the first surface of the first elastic body is in contact with at least the side surface of the second elastic body when the second region is bent and when the second region is not bent,

wherein the first surface of the second elastic body is a continuous surface, and

wherein the first surface of the second elastic body is in contact with the second region.

14. The display panel according to claim 13 , wherein the display region is configured to perform display in a direction in which the first component is not provided.

15. The display panel according to claim 13 , wherein the second region is capable of being bent with a curvature radius larger than 2 mm.

16. The display panel according to claim 13 , wherein a thickness of the second region is smaller than a thickness obtained by addition of 100 mm to a thickness of the first component.

17. The display panel according to claim 13 , wherein the first component becomes thinner toward end portions in a cross section.

18. The display panel according to claim 13 , wherein the second elastic body has a higher elastic modulus than the first elastic body.

Priority Claims (1)
JP 2017-229894 · Nov 30, 2017 · national
Continuity (3)
Continuation 17719702 · Apr 13, 2022
Continuation 16766418
Related Publication 20240074227A1 · Feb 29, 2024
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