Liquid crystal antenna

Patent metadata

Field	Value
Publication number	US-12580304-B2
Application number	US-202117923757-A
Country	US
Kind code	B2
Filing date	Dec 23, 2021
Priority date	Dec 23, 2021
Publication date	Mar 17, 2026
Grant date	Mar 17, 2026

Abstract

Provided is a liquid crystal antenna, which includes a first substrate and a second substrate which are oppositely arranged; a liquid crystal layer located between the first substrate and the second substrate; a first electrode located on one side of the first substrate close to the liquid crystal layer; a second electrode located on one side of the second substrate close to the liquid crystal layer; a feeder line located on one side of the second substrate far away from the second electrode and electrically connected with the second electrode; an encapsulation layer located between the first substrate and the second substrate and surrounding the liquid crystal layer; and a side electrode assembly including a plurality of side electrodes.

First claim

The invention claimed is:

1 . A liquid crystal antenna, comprising:
a first substrate and a second substrate which are oppositely arranged; a liquid crystal layer located between the first substrate and the second substrate; a first electrode located on one side of the first substrate adjacent to the liquid crystal layer; a second electrode located on one side of the second substrate adjacent to the liquid crystal layer; a feeder line located on one side of the second substrate distal to the second electrode and electrically connected with the second electrode; an encapsulation layer located between the first substrate and the second substrate and surrounding the liquid crystal layer; and a side electrode assembly comprising a plurality of side electrodes, wherein a direction of an electric field formed by the side electrodes in the side electrode assembly intersects with a direction of an electric field formed by the first electrode and the second electrode, wherein the side electrode assembly comprises a first side electrode, a second side electrode, a third side electrode and a fourth side electrode, and the first side electrode and the second side electrode are both located on the first electrode and both insulated from the first electrode; and the third side electrode and the fourth side electrode are both located on one side of the encapsulation layer distal to the first substrate.

2 . The liquid crystal antenna according to claim 1 , wherein the side electrode assembly comprises a first side electrode and a second side electrode; and
the first side electrode and the second side electrode are oppositely arranged and are both located on one side of the encapsulation layer distal to the liquid crystal layer.

3 . The liquid crystal antenna according to claim 2 , wherein the encapsulation layer comprises two first encapsulation parts which are oppositely arranged and two second encapsulation parts which are oppositely arranged, and the first encapsulation parts are connected with the second encapsulation parts; and
the first encapsulation part is made of a conducting material, the second encapsulation part is made of an insulating material, the first side electrode is in direct contact with one first encapsulation part, and the second side electrode is in direct contact with the other first encapsulation part.

4 . The liquid crystal antenna according to claim 1 , wherein the third side electrode and the fourth side electrode are both located on one side of the second substrate distal to the feeder line;
or, the third side electrode and the fourth side electrode are both located on one side of the second electrode distal to the second substrate and insulated from the second electrode.

5 . The liquid crystal antenna according to claim 1 , wherein an orthographic projection of the first side electrode on the first substrate overlaps with an orthographic projection of the third side electrode on the first substrate, and an orthographic projection of the second side electrode on the first substrate overlaps with an orthographic projection of the fourth side electrode on the first substrate.

6 . The liquid crystal antenna according to claim 5 , wherein the encapsulation layer comprises two first encapsulation parts which are oppositely arranged and two second encapsulation parts which are oppositely arranged, and the first encapsulation parts are connected with the second encapsulation parts; and the first encapsulation part is made of a conducting material, and the second encapsulation part is made of an insulating material; and
the first side electrode and the third side electrode are in direct contact with one first encapsulation part, and the second side electrode and the fourth side electrode are in direct contact with the other first encapsulation part.

7 . The liquid crystal antenna according to claim 6 , wherein the side electrode assembly further comprises a fifth side electrode and a sixth side electrode, the fifth side electrode and the sixth side electrode are oppositely arranged, and the fifth side electrode is located on one side of one first encapsulation part distal to the liquid crystal layer, and the sixth side electrode is located on one side of the other first encapsulation part distal to the liquid crystal layer.

Assignees

• Beijing Boe Technology Dev Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Tang Guoqiang
• Fang Jia
• Zheng Yang
• Wang Yali
• Liu Zongmin
• Qu Feng
• Li Biqi

Classifications

• H01P1/10 Primary

  for switching or interrupting {(in systems using reflection or reradiation of radio, acoustic or other waves G01S7/034)} · CPC title

• H01Q1/364 Primary

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

• H01Q1/24

  with receiving set · CPC title

• H01Q3/44

  varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element · CPC title

• H01Q1/22

  by structural association with other equipment or articles · CPC title