Power storage device, light-emitting device, and electronic device

Inventors: Takuya Kawata (Atsugi, JP); Kei Takahashi (Isehara, JP)

Assignee: Semiconductor Energy Laboratory Co., Ltd.

H01G11/78 H01G11/82 H01M50/209 H01M50/24 G02F1/133305 H01M50/10 H01M50/579 H01M2220/30 H02J50/12

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Quick Facts

Patent No.: US 11,139,121
App. No.: 16/725,152
Granted: Oct 5, 2021
Kind: B2

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Abstract

To provide a flexible, highly reliable power storage device or light-emitting device. The device includes a battery unit or a light-emitting unit and a member with rubber elasticity. The battery unit includes a secondary battery. The light-emitting unit includes a light-emitting element. The member with rubber elasticity is provided with a first projection and a second projection. The first projection and the second projection are arranged on a first surface of the battery unit or the light-emitting unit. The first projection and the second projection come in contact with each other when the power storage device is bent such that the first surface of the battery unit faces inward.

Claims (66)

1. A light-emitting device comprising:

a light-emitting unit; and

a member with rubber elasticity,

wherein the light-emitting unit includes a light-emitting panel,

wherein the light-emitting panel includes a light-emitting element,

wherein the light-emitting unit is contained in the member with rubber elasticity,

wherein at least part of the member with rubber elasticity transmits light emitted from the light-emitting element,

wherein the member with rubber elasticity comprises a first projection and a second projection,

wherein the first projection and the second projection are arranged on a first surface of the light-emitting unit,

wherein the light-emitting element has a function of emitting light to a second surface side of the light-emitting unit,

wherein the first surface and the second surface of the light-emitting unit are opposite to each other, and

wherein the first projection and the second projection come in contact with each other when the light-emitting device is bent such that the first surface of the light-emitting unit faces inward.

2. The light-emitting device according to claim 1 ,

wherein the light-emitting unit includes a secondary battery and a circuit,

wherein the secondary battery has a function of supplying power to the light-emitting element, and

wherein the circuit includes an antenna and has a function of charging the secondary battery on the basis of a signal received by the antenna.

3. The light-emitting device according to claim 2 ,

wherein the secondary battery includes a portion overlapping with the light-emitting panel.

4. The light-emitting device according to claim 2 ,

wherein the antenna includes a portion overlapping with the light-emitting panel.

5. The light-emitting device according to claim 2 ,

wherein at least part of the antenna is located between the light-emitting panel and the secondary battery.

6. The light-emitting device according to claim 2 ,

wherein the light-emitting unit includes a pressure-sensing element, and

wherein the pressure-sensing element is located closer to the second surface than the light-emitting element is.

7. The light-emitting device according to claim 2 , further comprising:

a capacitive sensor,

wherein the capacitive sensor is located outside the member with rubber elasticity, and

wherein light emitted from the light-emitting element is extracted to the outside through the capacitive sensor.

8. An electronic device comprising:

the light-emitting device according to claim 1 ; and

a sensor, a housing, a speaker, a microphone, an operation switch, or an operation button.

9. A light-emitting device comprising:

a secondary battery;