IP Library › Granted Patent US 11,740,668
Granted Patent B2
US 11,740,668 · App. 17/660,706 · Granted Aug 29, 2023

Electronic device

Inventors: Keisuke Asada (Minato-ku, JP); Hideaki Abe (Minato-ku, JP); Kota Uogishi (Minato-ku, JP); Kazuyuki Yamada (Minato-ku, JP)
Assignee: Japan Display Inc.
G06F1/189G06F1/1605G06F1/1652G09F9/301
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Quick Facts
Patent No.
US 11,740,668
App. No.
17/660,706
Granted
Aug 29, 2023
Kind
B2
Abstract

An electronic device includes a substrate having a first surface and a second surface opposite the first surface and including an input terminal part on the first surface, a wiring substrate having a flexibility connected to the input terminal part, and an electronic component on the second surface of the substrate. The wiring substrate has an opening through the wiring substrate, and the opening overlaps with the electronic component when the wiring substrate is bent to a side of the second surface of the substrate.

Claims (35)

1. An electronic device, comprising:

a substrate including a first surface and a second surface opposite the first surface and including a display part including a plurality of pixels and an input terminal part on the first surface;

a wiring substrate having a flexibility connected to the input terminal part; and

an electronic component on the second surface of the substrate, wherein

the display part includes a non-display region,

the wiring substrate includes an opening through the wiring substrate,

the opening overlaps with the electronic component when the wiring substrate is bent to a side of the second surface of the substrate, and

the electronic component and the opening overlap the non-display region in the display part.

2. The electronic device according to claim 1 , wherein the electronic component is a camera module or sensor module.

3. The electronic device according to claim 2 , wherein the opening is inside a peripheral portion of the wiring substrate.

4. The electronic device according to claim 3 , wherein

the wiring substrate includes a plurality of wiring and a connection terminal group arranged with a plurality of connection terminals in a first direction,

the connection terminal group includes a first connection terminal group, a second connection terminal group, and a dummy connection terminal group between the first connection terminal group and the second connection terminal group,

the plurality of wiring connects to the first connection terminal group and the second connection terminal group,

the dummy connection terminal group is not connected to the plurality of wiring, and

the opening is adjacent to the dummy connection terminal group in a second direction intersecting with the first direction.

5. The electronic device according to claim 4 , wherein

the input terminal part includes a first input terminal group, a second input terminal group, and a dummy input terminal group between the first input terminal group and the second input terminal group, and each input terminal group includes a plurality of terminals arranged in the first direction, and

the first input terminal group and the first connection terminal group, the second input terminal group and the second connection terminal group, and the dummy input terminal group and the dummy connection terminal group are connected by an anisotropic conductive film.

6. The electronic device according to claim 5 , wherein a portion of the opening is in a folded region of the wiring substrate when the wiring substrate is bent to the side of the second surface.

7. The electronic device according to claim 3 , wherein a portion of the opening is in a folded region of the wiring substrate when the wiring substrate is bent to the side of the second surface.

8. The electronic device according to claim 5 , wherein

the substrate further includes a driving circuit outside of the display part,

the first input terminal group and the second input terminal group are connected to the driving circuit, and

the dummy input terminal group is in a floating state or grounded state.

9. The electronic device according to claim 1 , wherein the electronic component protrudes through the opening of the wiring substrate.

10. The electronic device according to claim 5 , wherein

the substrate is curved along the first direction,

the first surface is convex, and

the wiring substrate is bent to a curved region on the side of the second surface of the substrate.

11. The electronic device according to claim 1 , wherein

the input terminal part is arranged in a first direction,

the substrate is curved along the first direction,

the first surface is convex, and

the wiring substrate is bent to a curved region on the side of the second surface of the substrate.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
Priority Claims (1)
JP 2019-116509 · Jun 24, 2019 · national
Continuity (2)
Continuation 16899784 · Jun 12, 2020
Related Publication 20220253111A1 · Aug 11, 2022
Cited By (2)
US 12,390,176 US 12,584,740