Antenna structure and image display device including the same

Patent metadata

Field	Value
Publication number	US-11837778-B2
Application number	US-202117553943-A
Country	US
Kind code	B2
Filing date	Dec 17, 2021
Priority date	Dec 17, 2020
Publication date	Dec 5, 2023
Grant date	Dec 5, 2023

Abstract

An antenna structure according to an embodiment of the present disclosure includes a support layer having a first surface and a second surface facing each other, a light-shielding pattern disposed on a peripheral portion of the first surface of the support layer, a radiator disposed at the same level as that of the light-shielding pattern on the first surface of the support layer, and a signal pad disposed on the light-shielding pattern and electrically connected to the radiator. A spatial efficiency of the antenna structure may be improved and a thickness of the image display device may be reduced to enhance a bending property.

First claim

What is claimed is:

1. An antenna structure comprising:
a support layer having a first surface and a second surface facing each other;
a light-shielding pattern disposed on a peripheral portion of the first surface of the support layer;
a radiator disposed at the same level as that of the light-shielding pattern on the first surface of the support layer
a signal pad disposed directly on the light-shielding pattern and electrically connected to the radiator; and
a transmission line electrically connecting the signal pad and the radiator with each other,
wherein a step difference is generated between a top surface of the signal pad and a top surface of the radiator,
wherein the transmission line is bent along a sidewall of the light-shielding pattern and the first surface of the support layer.

2. The antenna structure of claim 1 , wherein the signal pad is in contact with a top surface of the light-shielding pattern, and the radiator is in contact with the first surface of the support layer.

3. The antenna structure of claim 1 , further comprising a passivation layer formed on the first surface of the support layer to cover the radiator and at least partially expose a top surface of the signal pad.

4. The antenna structure of claim 1 , wherein the radiator has a mesh structure, and the signal pad has a solid metal pattern.

5. The antenna structure of claim 1 , further comprising a transparent film formed on the second surface of the support layer.

6. The antenna structure of claim 1 , wherein the support layer comprises a first intermediate layer including the first surface and a second intermediate layer including the second surface; and
the first intermediate layer and the second intermediate layer include different dielectric materials.

7. An image display device comprising:
a display panel; and
the antenna structure according to claim 1 disposed on the display panel.

8. The image display device of claim 7 , further comprising a ground layer disposed under the display panel.

9. The image display device of claim 7 , further comprising a cover window disposed on the antenna structure,
wherein the second surface of the support layer of the antenna structure is disposed toward the cover window.

10. The image display device of claim 9 , further comprising:
a first adhesive layer disposed between the antenna structure and the display panel; and
a circuit board disposed between the light-shielding pattern of the antenna structure and the first adhesive layer to be bonded to the signal pad.

11. The image display device of claim 10 , further comprising a second adhesive layer disposed between the antenna structure and the cover window.

12. The image display device of claim 11 , wherein a thickness of the first adhesive layer is from 50 μm to 500 μm, and a thickness of the second adhesive layer is from 20 μm to 200 μm.

13. The image display device of claim 10 , further comprising an optical layer disposed between the first adhesive layer and the display panel.

Assignees

• Dongwoo Fine Chem Co Ltd

Inventors

• Huh Yoon Ho
• Lee Young Su
• Lee Jae Hyun

Classifications

• H01Q1/243 Primary

  with built-in antennas · CPC title

• G02F1/133512

  Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title

• H01Q1/38 Primary

  formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface  H01Q15/142)} · CPC title

• H01Q1/12

  Supports; Mounting means · CPC title

• H01Q1/22

  by structural association with other equipment or articles · CPC title