Coil structure and electronic device

Patent metadata

Field	Value
Publication number	US-2024412918-A1
Application number	US-202318696964-A
Country	US
Kind code	A1
Filing date	Aug 1, 2023
Priority date	Sep 5, 2022
Publication date	Dec 12, 2024
Grant date	—

Abstract

The present disclosure provides a coil structure. The coil structure includes: a dielectric substrate; and a coil portion and a first pattern disposed on the dielectric substrate; wherein the first pattern extends through at least a portion of the dielectric substrate along a thickness direction of the dielectric substrate, and the first pattern is not overlapped with the coil portion.

First claim

1 . A coil structure, comprising:
a dielectric substrate; and a coil portion and a first pattern disposed on the dielectric substrate; wherein the first pattern extends through at least a portion of the dielectric substrate along a thickness direction of the dielectric substrate, and the first pattern is not overlapped with the coil portion.

2 . The coil structure according to claim 1 , wherein the dielectric substrate comprises a first region, a second region, and a third region, the second region surrounding the first region, and the third region surrounding the second region;
wherein the coil portion is disposed in the second region, and the first pattern is arranged in both the first region and the third region.

3 . The coil structure according to claim 2 , wherein a first sub-region of the second region is defined between adjacent turns of the coil portion, and the first pattern is arranged in the first sub-region.

4 . The coil structure according to claim 1 , wherein the coil portion has at least one of a square shape, a hexagonal shape, an octagonal shape, or a circular shape.

5 . The coil structure according to claim 1 , wherein an outline of the first pattern has at least one of a linear shape, an I shape, or a circular arc shape.

6 . The coil structure according to claim 1 , further comprising first patterns with two shapes of outline which are respectively a first shape and a second shape, wherein the first patterns are arranged in a fashion of alternating between the first shape and the second shape along a row direction and a column direction of the dielectric substrate.

7 . The coil structure according to claim 1 , wherein the coil portion has a circular shape; wherein
the first pattern comprises a plurality of first sub-patterns arranged sequentially along a clockwise direction, wherein an outline of the first sub-pattern has a circular arc shape, and the plurality of first sub-patterns are concentric.

8 . The coil structure according to claim 7 , wherein a plurality of the first patterns are arranged, and the first sub-patterns of different first patterns are disposed in one-to-one correspondence.

9 . The coil structure according to claim 1 , further comprising: a light-emitting device;
wherein the coil portion comprises a first connecting end and a second connecting end, the first connecting end being connected to a first electrode of the light-emitting device, and the second connecting end being connected to a second electrode of the light-emitting device.

10 . The coil structure according to claim 9 , further comprising: an insulating layer and a pixel-definition layer that are sequentially disposed on a side, distal from the dielectric substrate, of the coil portion, the pixel-definition layer having an accommodation portion;
the light-emitting device comprises the first electrode, a light-emitting layer, and the second electrode, wherein the first electrode is disposed on a side, distal from the coil portion, of the insulating layer, the light-emitting layer is disposed on a side, distal from the insulating layer, of the first electrode and is positioned at least within the accommodation portion of the pixel-definition layer, and the second electrode is positioned on a side, distal from the first electrode, of the light-emitting layer; and the first connecting end is connected to the first electrode through a first via hole, and the second connecting end is connected to the second electrode through a second via hole; wherein the first via hole runs through the insulating layer, and the second via hole runs through the insulating layer and the pixel-definition layer.

11 . The coil structure according to claim 10 , wherein the first pattern runs through the dielectric substrate along a thickness direction of the dielectric substrate.

12 . The coil structure according to claim 1 , wherein the coil structure is a near field communication antenna or a charging coil.

13 . An electronic device, comprising: a coil structure and a functional device disposed on the coil structure;
wherein the coil structure, comprises: a dielectric substrate; and a coil portion and a first pattern disposed on the dielectric substrate; wherein the first pattern extends through at least a portion of the dielectric substrate along a thickness direction of the dielectric substrate, and the first pattern is not overlapped with the coil portion.

14 . The electronic device according to claim 13 , wherein the dielectric substrate comprises a first region, a second region, and a third region, the second region surrounding the first region, and the third region surrounding the second region;
wherein the coil portion is disposed in the second region, and the first pattern is arranged in both the first region and the third region.

15 . The electronic device according to claim 14 , wherein a first sub-region of the second region is defined between adjacent turns of the coil portion, and the first pattern is arranged in the first sub-region.

16 . The electronic device according to claim 13 , wherein the coil portion has at least one of a square shape, a hexagonal shape, an octagonal shape, or a circular shape.

17 . The electronic device according to claim 13 , wherein an outline of the first pattern has at least one of a linear shape, an I shape, or a circular arc shape.

18 . The electronic device according to claim 13 , wherein the coil structure further comprises first patterns with two shapes of outline which are respectively a first shape and a second shape, wherein the first patterns are arranged in a fashion of alternating between the first shape and the second shape along a row direction and a column direction of the dielectric substrate.

19 . The electronic device according to claim 13 , wherein the coil portion has a circular shape; wherein
the first pattern comprises a plurality of first sub-patterns arranged sequentially along a clockwise direction, wherein an outline of the first sub-pattern has a circular arc shape, and the plurality of first sub-patterns are concentric.

20 . The electronic device according to claim 19 , wherein a plurality of the first patterns are arranged, and the first sub-patterns of different first patterns are disposed in one-to-one correspondence.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Zhang Hao
• Wen Mengyang
• Liu Libin
• Shi Shiming
• Qiu Haijun

Classifications

• H01F27/2804 Primary

  Printed windings · CPC title

• H05K1/0281

  Reinforcement details thereof · CPC title

• H01F38/14

  Inductive couplings {(for wireless supply or distribution of electric power using inductive coupling H02J50/10)} · CPC title

• H01F2038/143

  for signals · CPC title

• H05K1/165 Primary

  incorporating printed inductors · CPC title