Electronic device

Patent metadata

Field	Value
Publication number	US-12206158-B2
Application number	US-202217866428-A
Country	US
Kind code	B2
Filing date	Jul 15, 2022
Priority date	Dec 23, 2021
Publication date	Jan 21, 2025
Grant date	Jan 21, 2025

Abstract

An electronic device includes a display panel, an antenna, and a circuit film. The antenna overlaps the display panel. The antenna includes an antenna base film having a first surface and a second surface opposite each other. The first surface is disposed between the display panel and the second surface. The antenna further includes an antenna pattern, an antenna feed line, and an antenna pad each being disposed on the first surface. The antenna pattern is electrically connected through the antenna feed line to the antenna pad. The circuit film is electrically connected to the antenna pad.

First claim

What is claimed is:

1. An electronic device comprising:
a display panel;
an antenna overlapping the display panel, wherein the antenna includes an antenna base film having a first surface and a second surface opposite to the first surface, wherein the first surface is disposed between the display panel and the second surface, wherein the antenna further includes an antenna pattern, an antenna feed line, and an antenna pad each being disposed on the first surface, and wherein the antenna pattern is electrically connected through the antenna feed line to the antenna pad; and
a circuit film electrically connected to the antenna pad,
wherein the display panel is disposed closer to the first surface, on which each of the antenna pattern, the antenna feed line and the antenna pad is disposed, than the second surface.

2. The electronic device of claim 1 , further comprising:
a first adhesive layer disposed between the display panel and the antenna; and
a second adhesive layer disposed between the first adhesive layer and the display panel,
wherein the first adhesive layer and the second adhesive layer are attached to each other.

3. The electronic device of claim 2 , wherein a dielectric constant of the first adhesive layer is lower than a dielectric constant of the second adhesive layer.

4. The electronic device of claim 2 , wherein a loss value of the first adhesive layer is lower than a loss value of the second adhesive layer.

5. The electronic device of claim 2 , wherein the first adhesive layer covers a face of the antenna pattern, covers at least half of a face of the antenna feed line, and does not overlap the antenna pad in a direction perpendicular to the first surface,
wherein the second adhesive layer overlaps each of the antenna pattern, the antenna feed line, and the antenna pad in the direction perpendicular to the first surface, and
wherein the circuit film is partially disposed between a portion of the second adhesive layer and the antenna pad.

6. The electronic device of claim 2 , wherein the first adhesive layer is shorter than the second adhesive layer in a direction parallel to the first surface.

7. The electronic device of claim 1 , further comprising:
an anti-reflection film overlapping the antenna;
a window overlapping the anti-reflection film; and
a bezel pattern disposed on the window,
wherein the antenna pad overlaps the bezel pattern.

8. The electronic device of claim 7 , wherein an edge of the antenna base film, an edge of the anti-reflection film, and an edge of the display panel are aligned with one another in a cross-sectional view of the electronic device.

9. The electronic device of claim 7 , wherein the antenna base film protrudes beyond an edge of the anti-reflection film in a direction parallel to the first surface, and wherein the antenna pad does not overlap the anti-reflection film in a direction perpendicular to the first surface.

10. The electronic device of claim 7 , wherein an edge of the antenna base film and an edge of the anti-reflection film are aligned with each other in a cross-sectional view of the electronic device,
wherein each of the antenna base film and the anti-reflection film protrude beyond an edge of the display panel in a direction parallel to the first surface, and
wherein the antenna pad and a portion of the anti-reflection film do not overlap the display panel in a direction perpendicular to the first surface.

11. An electronic device comprising:
a display panel;
an antenna overlapping the display panel, wherein the antenna includes an antenna base film having a first surface and a second surface opposite each other, wherein the first surface is disposed between the display panel and the second surface, wherein the antenna further includes an antenna pattern, an antenna feed line, and an antenna pad each being disposed on the first surface, and wherein the antenna pattern is electrically connected through the antenna feed line to the antenna pad;
a circuit film electrically connected to the antenna pad; and
a window disposed between the antenna and the display panel.

12. The electronic device of claim 11 , wherein the window has an opening that exposes the antenna pad.

13. The electronic device of claim 12 , wherein the opening is completely surrounded by the window.

14. The electronic device of claim 12 , wherein the opening is connected to an edge of the window and is partially surrounded by the window.

15. The electronic device of claim 12 , further comprising:
a bezel pattern disposed closer to the second surface of the antenna base film than to the first surface of the antenna base film; and
a protective layer overlapping the antenna base film and covering at least one face of the bezel pattern.

16. The electronic device of claim 15 , wherein the opening is overlapped by the bezel pattern.

17. The electronic device of claim 12 , wherein the window includes a first portion including an edge of the window and includes a second portion spaced from the first portion by the opening, and
wherein the second portion is at least as thick as the first portion in a direction perpendicular to the first surface.

18. The electronic device of claim 17 , wherein the first portion of the window overlaps the circuit film.

19. The electronic device of claim 12 , further comprising:
an adhesive layer disposed between the window and the display panel,
wherein the adhesive layer overlaps the antenna pad, and
wherein a portion of the circuit film is disposed between the antenna pad and the adhesive layer.

20. The electronic device of claim 12 , further comprising:
an adhesive layer disposed between the window and the display panel,
wherein the adhesive layer does not overlap the antenna pad in a direction perpendicular to the first surface, and
wherein an edge of the adhesive layer faces the circuit film.

21. The electronic device of claim 20 , wherein the circuit film includes a bent portion disposed between the antenna and the display panel and facing the edge of the adhesive layer.

22. An electronic device comprising:
a display panel;
an antenna overlapping the display panel, the antenna including a first surface and a second surface positioned farther from the display panel than the first surface; and
a circuit film electrically connected to the antenna,
wherein a portion of the circuit film is disposed between the first surface of the antenna and the display panel.

23. The electronic device of claim 22 , further comprising:
a first adhesive layer disposed between the first surface of the antenna and the display panel; and
a second adhesive layer directly attached to each of the first adhesive layer and the display panel.

24. The electronic device of claim 23 , wherein at least one of a dielectric constant and a loss value of the first adhesive layer is lower than at least one of a dielectric constant and a loss value of the second adhesive layer.

25. The electronic device of claim 22 , wherein an edge of the antenna is aligned with an edge of the display panel in across-sectional view of the electronic device, or a portion of the antenna protrudes beyond the edge of the display panel in a direction parallel to the first surface of the antenna, and wherein the edge of the antenna or the portion of the antenna overlaps the circuit film.

26. The electronic device of claim 22 , further comprising:
an anti

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Hyun Jae
• Kim Sunghwan

Classifications

• G06F1/1652 Primary

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title

• G09F9/30

  in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00) · CPC title

• H01Q1/243 Primary

  with built-in antennas · CPC title

• H01Q1/364

  using a particular conducting material, e.g. superconductor · CPC title

• H01Q21/08

  the units being spaced along or adjacent to a rectilinear path {(waveguide fed H01Q21/0037)} · CPC title