Wireless electronic device with antenna structures in multiple layers

Patent metadata

Field	Value
Publication number	US-11728562-B2
Application number	US-202117173496-A
Country	US
Kind code	B2
Filing date	Feb 11, 2021
Priority date	Apr 21, 2020
Publication date	Aug 15, 2023
Grant date	Aug 15, 2023

Abstract

An electronic device includes a display panel including a display area and a non-display area. The electronic device includes an input sensor disposed on the display panel and including a plurality of bridge elements and a plurality of sensing patterns connected to the plurality of bridge elements, and an antenna disposed on the same layer as the input sensor. The antenna includes a first sub-antenna disposed on a same layer as the bridge element and including a first portion extending in a first direction and a second portion extending from one end of the first portion in a second direction crossing the first direction and a second sub-antenna disposed on a same layer as the sensing pattern and including a third portion and a fourth portion extending from one end of the third portion in a direction opposite to the second direction.

First claim

What is claimed is:

1. An electronic device comprising:
a display panel comprising a display area and a non-display area adjacent to the display area, the display area comprising a first area and a second area between the first area and one side of the non-display area;
an input sensor disposed on the display panel and comprising a plurality of bridge elements and a plurality of sensing patterns connected to the plurality of bridge elements; and
an antenna disposed on a same layer as the input sensor and overlapping the second area, the antenna comprising:
a first sub-antenna disposed on a same layer as the bridge elements and comprising a first portion extending in a first direction and a second portion extending from one end of the first portion in a second direction crossing the first direction; and
a second sub-antenna disposed on a same layer as the sensing patterns and comprising a third portion overlapping the first portion and a fourth portion extending from one end of the third portion in a direction opposite to the second direction.

2. The electronic device of claim 1 , wherein the first portion, the second portion, the third portion and the fourth portion together form a symmetrical structure.

3. The electronic device of claim 1 , wherein the first sub-antenna or the second sub-antenna further comprises a ground portion, and the ground portion is connected to the first portion or the third portion.

4. The electronic device of claim 3 , wherein the ground portion extends to the non-display area.

5. The electronic device of claim 1 , wherein the input sensor and the antenna further comprise a first insulating layer and a second insulating layer disposed on the first insulating layer, the first sub-antenna is disposed on the first insulating layer, and the second sub-antenna is disposed on the second insulating layer.

6. The electronic device of claim 1 , wherein the first sub-antenna and the second sub-antenna have different electrical polarities from each other.

7. The electronic device of claim 1 , wherein the first sub-antenna and the second sub-antenna each have a mesh structure.

8. The electronic device of claim 1 , wherein the first portion has an area that is equal to an area of the third portion, and the second portion has an area that is equal to an area of the fourth portion.

9. The electronic device of claim 1 , wherein the first portion of the first sub-antenna is disposed closer to the non-display area than is the second portion.

10. The electronic device of claim 5 , wherein the sensing patterns comprise a plurality of first sensing patterns arranged and connected in rows oriented in the second direction, and a plurality of second sensing patterns arranged and connected in columns oriented in the first direction, and
the bridge elements comprise a plurality of first bridge elements each connecting a pair of the first sensing patterns adjacent to each other in the same row among the first sensing patterns, and
a plurality of second bridge elements connecting a pair of the second sensing patterns adjacent to each other in the same column among the second sensing patterns.

11. The electronic device of claim 10 , wherein the first sensing patterns, the second sensing patterns, and the second bridge elements are disposed on the second insulating layer, and the first bridge elements are disposed on the first insulating layer.

12. The electronic device of claim 11 , wherein the second sub-antenna is disposed between the pair of the first sensing patterns.

13. The electronic device of claim 1 , wherein the display panel comprises a base surface defined therein and comprising a thin film encapsulation layer, and the input sensor and the antenna are disposed directly on the base surface.

14. The electronic device of claim 1 , wherein the antenna further comprises at least one reflective pattern connected to at least one of the first sub-antenna and the second sub-antenna.

15. The electronic device of claim 14 , wherein the first sub-antenna or the second sub-antenna further comprises a ground portion connected to the first portion or the third portion, respectively, and the at least one reflective pattern extends in the second direction from at least one side of the ground portion.

16. An electronic device comprising:
a display panel comprising a display area and a non-display area adjacent to the display area, the display area comprising a first area and a second area between the first area and one side of the non-display area;
an input sensor disposed on the display panel and comprising a plurality of sensing patterns;
a first antenna layer disposed on a same layer as the input sensor and overlapping the second area; and
a second antenna layer disposed on the first antenna layer, wherein a first sub-antenna is disposed on the first antenna layer and extends partially in a first direction and partially in a second direction crossing the first direction, a second sub-antenna is disposed on the second antenna layer and extends partially in the first direction and partially in a direction opposite the second direction, and the first sub-antenna and the second sub-antenna have different electrical polarities.

17. The electronic device of claim 16 , wherein the input sensor comprises a plurality of bridge elements and the sensing patterns connected to the plurality of bridge elements, the first antenna layer and the sensing patterns are disposed on a same layer, and the second antenna layer is disposed on a layer different from a layer on which the input sensor is disposed.

18. The electronic device of claim 17 , wherein the sensing patterns comprise:
a plurality of first sensing patterns arranged in the second direction; and
a plurality of second sensing patterns arranged in the second direction.

19. The electronic device of claim 18 , wherein the second sub-antenna is provided in plural, the second sub-antennas are arranged in the first direction, and each of the second sub-antennas is disposed between a pair of adjacent first sensing patterns.

20. The electronic device of claim 16 , further comprising an insulating layer disposed between the first antenna layer and the second antenna layer, wherein the insulating layer comprises an insulating material having a predetermined dielectric constant.

21. The electronic device of claim 16 , wherein the first sub-antenna and the second sub-antenna each have a mesh structure.

22. The electronic device of claim 16 , wherein one sub-antenna of the first sub-antenna and the second sub-antenna comprises:
a ground portion; and
at least one reflective pattern extending in the second direction from at least one side of the ground portion.

23. An electronic device comprising:
at least first and second insulating layers, the first insulating layer being disposed on the second insulating layer;
a first sub-antenna disposed within the first insulating layer; and
a second sub-antenna disposed within the second insulating layer;
wherein the first sub-antenna is a first arm of a dipole, the first arm having a first stem portion and a folded portion perpendicular to the first stem portion and extending from the first stem portion in a first direction, and the second sub-antenna is a second arm of the dipole, the second arm having a second stem portion parallel to the first stem portion and having a folded portion perpendicular to the second stem portion and extending in a direction opposite the first di

Assignees

• Samsung Display Co Ltd
• Ulsan National Institute Of Science And Tech

Inventors

• Sung Eunjin
• Nguyen Thi Duyen
• Kim Jae-Kyoung
• Park Wonsang
• BYUN Gangil
• Lee Seongryong
• Heo Jinmyeong

Classifications

• H01Q1/243 Primary

  with built-in antennas · CPC title

• H01Q1/36

  Structural form of radiating elements, e.g. cone, spiral, umbrella; {Particular materials used therewith}(H01Q1/08, H01Q1/14 take precedence) · CPC title

• H01Q1/48

  Earthing means; Earth screens; Counterpoises · CPC title

• H01Q9/16

  with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole (H01Q9/44 takes precedence) · CPC title

• G06F3/04164 Primary

  Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads · CPC title