IP Library Granted Patent US 12,396,102
Granted Patent B2
US 12,396,102 · App. 18/078,181 · Granted Aug 19, 2025

Electronic device

Inventor: Takumi Sano (Tokyo, JP)
Assignee: Magnolia White Corporation
H05K1/189H05K2201/10151H05K2201/10174
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Quick Facts
Patent No.
US 12,396,102
App. No.
18/078,181
Granted
Aug 19, 2025
Kind
B2
Abstract

According to one embodiment, an electronic device includes a flexible film-like insulating base and a sensor disposed on the insulating base, and the insulating base includes a detection area in which the sensor is disposed and a peripheral area on an outer side of the detection area, and the peripheral area includes a reinforcement member provided thereon to extend along an outer circumference of the insulating base.

Claims (48)

1. An electronic device comprising:

a flexible film-like insulating base;

a first multilayer film of a plurality of insulating films disposed on the insulating base; and

a sensor disposed on the first multilayer film of the plurality of insulating films, wherein

the insulating base includes a detection area in which the sensor is disposed and a peripheral area on an outer side of the detection area,

the peripheral area includes a first reinforcement member provided thereon to extend along an outer circumference of the insulating base, and

the first reinforcement member includes a second multilayer film of a plurality of insulating films formed of a same material as that of the first multilayer film of the plurality of insulating films disposed under the sensor,

a material constituting the first reinforce member and a material constituting the sensor are not provided between the first reinforce member and the detection area, and

the first reinforce member and the detection area are spaced apart from each other.

2. The electronic device of claim 1 , wherein

the insulating base is rectangular, and

the first reinforcement member is disposed to extend along at least two long sides of the insulating base.

3. The electronic device of claim 2 , wherein

the first reinforcement member is disposed to extend along two long sides of the insulating base and one of two short sides of the insulating base.

4. The electronic device of claim 1 , further comprising:

a first insulating member disposed between the detection area and the first reinforcement member and extending along the first reinforcement member,

the material constituting the first reinforce member and the material constituting the sensor are not provided between the first reinforce member and the first insulating member,

the material constituting the first reinforcement member and the material constituting the sensor are not provided between the first insulating member and the detection area,

the first reinforce member and the first insulating member area are spaced apart from each other, and

the first insulating member and the detection area are spaced apart from each other.

5. The electronic device of claim 4 , wherein

the first insulating member has a thickness less than or equal to that of the first reinforcement member.

6. The electronic device of claim 4 , wherein

the first insulating member is disposed in a gap between a configuration on the detection area side and the first reinforcement member.

7. The electric device of claim 4 , wherein

the first insulating member has a single-layer structure.

8. The electric device of claim 4 , wherein

a second insulating member having the same layer structure as that of the first insulating member is further provided between the detection area and the first reinforcement member,

the material constituting the sensor and the material constituting the first reinforcement member are not provided between the first insulating member and the second insulating member,

the first insulating member and the second insulating member are spaced apart from each other, and

the second insulating member and the detection area are spaced apart from each other.

9. The electronic device of claim 1 , wherein

the sensor includes a photodiode which outputs an electrical signal according to irradiated light.

10. The electronic device of claim 1 , wherein

each of the plurality of insulating films forming the second multilayer included in the first reinforcement member is formed on a same layer as that of the each of the plurality of insulating films forming the first multilayer film disposed under the sensor.

11. The electronic device of claim 1 , wherein

the first multilayer film disposed under the sensor include an organic insulating film, and

the second multilayer film included in the first reinforcement member include an insulating film formed of a same material as that of the organic insulating film or an insulating film formed on a same layer as that of the organic insulating film.

12. The electronic device of claim 1 , wherein

the second multilayer film included in the first reinforcement member include a first insulating film, a second insulating film, a third insulating film, a fourth insulating film, a fifth insulating film, a sixth insulating film and a seventh insulating film, and

each of the first to seventh insulating films is formed of a same material as that of each of the plurality of insulating films forming the first multilayer film disposed under the sensor or is formed on a same layer as that of each of plurality of insulating films forming the first multilayer film disposed under the sensor.

13. The electric device of claim 1 , wherein

a second reinforcement member having the same layer structure as that of the first reinforce member is further provided in the peripheral area,

materials constituting the first reinforce member and the second reinforce member and the material constituting the sensor are not provided between the first reinforce member and the second reinforcement member,

the first reinforce member and the second reinforce member are spaced apart from each other, and

the second reinforce member and the detection area are spaced apart from each other.

14. The electric device of claim 1 , wherein

the first reinforcement member further includes an extra film that covers the second multilayer film and is directly in contact with a top surface of one of the plurality of insulating films forming the second multilayer film and side surfaces of at least two of the plurality of insulating films forming the second multilayer film.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 27, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 071542/0924 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 9, 2022
From: SANO, TAKUMI
To: JAPAN DISPLAY INC.
Reel/Frame 062037/0372 →
Priority Claims (1)
JP 2021-203279 · Dec 15, 2021 · national
Continuity (1)
Related Publication 20230105043A1 · Apr 6, 2023
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