Granted Patent B2

US 12,406,816 · App. 18/403,793 · Granted Sep 2, 2025

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

Assignee: Semiconductor Energy Laboratory Co., Ltd.

H01G11/78H01G11/82H01M50/105H01M50/211H01M50/24G02F1/133305H01M50/579H01M2220/30H02J50/12

Abstract

Claims (26)

1. A light-emitting device comprising:

a light-emitting unit comprising a light-emitting panel, a secondary battery, and a circuit; and

a first member with rubber elasticity,

wherein the light-emitting unit is sealed by the first member with rubber elasticity,

wherein the light-emitting panel and at least one of the secondary battery and the circuit overlap with each other when seen from a light-emitting surface of the light-emitting device,

wherein the first member with rubber elasticity comprises an uneven structure including a first projection and a second projection on a back side of the light-emitting surface of the light-emitting device, and

wherein the first projection and the second projection come in contact with each other when the light-emitting device is folded.

2. The light-emitting device according to claim 1 , further comprising a touch panel,

wherein the touch panel is positioned over the first member with rubber elasticity,

wherein the light-emitting panel comprises a light-emitting element, and

wherein light emitted by the light-emitting element is extracted to the outside through the touch panel.

3. The light-emitting device according to claim 1 , further comprising a touch panel,

wherein the touch panel is positioned at the back side of the light-emitting surface of the light-emitting device.

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

wherein the circuit comprises an antenna, and

wherein the circuit is configured to charge the secondary battery.

5. A light-emitting device comprising:

a light-emitting unit comprising a light-emitting panel, a secondary battery, and a circuit; and

a first member with rubber elasticity,

wherein the light-emitting unit is sealed by the first member with rubber elasticity,

wherein the first member with rubber elasticity comprises an uneven structure including a first projection and a second projection on a back side of a light-emitting surface of the light-emitting device,

wherein the uneven structure and one of the light-emitting panel and the secondary battery overlap each other, and

wherein the first projection and the second projection come in contact with each other when the light-emitting device is folded.

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

wherein the circuit comprises an antenna, and

wherein the circuit is configured to charge the secondary battery.

Priority Claims (1)

Continuity (4)

References Cited (56)