Phase shifter and manufacturing method thereof, liquid crystal antenna and communication device

Patent metadata

Field	Value
Publication number	US-2019103671-A1
Application number	US-201815993842-A
Country	US
Kind code	A1
Filing date	May 31, 2018
Priority date	Sep 29, 2017
Publication date	Apr 4, 2019
Grant date	—

Abstract

A phase shifter and a manufacturing method thereof, a liquid crystal antenna and a communication device are provided. The phase shifter includes: a first substrate and a second substrate which are oppositely arranged; and a sealing frame structure located in peripheral regions of the first substrate and the second substrate for fixing relative positions of the two substrates to form a gap for accommodating a liquid crystal material; wherein the sealing frame structure includes a support, and sealant for bonding to the first substrate, on the support. It is able to facilitate the increase in the adjusting range of the resonant frequency of the liquid crystal antenna by the phase shifter and the manufacturing method thereof.

First claim

What is claimed is:

1 . A phase shifter comprising:
a first substrate and a second substrate which are oppositely arranged; and a sealing frame structure located in peripheral regions of the first substrate and the second substrate for fixing relative positions of the two substrates to form a gap for accommodating a liquid crystal material, wherein the sealing frame structure comprises a support, and sealant for bonding to the first substrate, on the support.

2 . The phase shifter according to claim 1 , wherein the sealing frame structure further comprises sealant for bonding to the second substrate, on the support.

3 . The phase shifter according to claim 1 , wherein a forming material of the support is the same as that of the first substrate or that of the second substrate.

4 . The phase shifter according to claim 1 ,
the support is annularly distributed in the peripheral region of the first substrate, or the support is annularly distributed in the peripheral region of the second substrate.

5 . The phase shifter according to claim 4 , wherein the support is provided with a wiring groove, and the wiring groove is used for distribution of a lead of the phase shifter.

6 . The phase shifter according to claim 3 ,
wherein the support is integrally formed with the first substrate; or the support is integrally formed with the second substrate.

7 . The phase shifter according to claim 4 ,
wherein the support is integrally formed with the first substrate; or the support is integrally formed with the second substrate.

8 . The phase shifter according to claim 1 , wherein the phase shifter further comprises:
an alignment layer arranged on at least one of the first substrate and the second substrate.

9 . The phase shifter according to claim 5 , wherein the phase shifter further comprises: a plurality of coils, wherein a terminal of each of the coils extends out from a region defined by the support, through the wiring groove on the support.

10 . The phase shifter according to claim 1 ,
wherein a patch electrode is arranged at the side, close to the liquid crystal material, of the first substrate, and a grounding electrode is arranged at the side, close to the liquid crystal material, of the second substrate, or the grounding electrode is arranged at the side, close to the liquid crystal material, of the first substrate, and the patch electrode is arranged at the side, close to the liquid crystal material, of the second substrate.

11 . A manufacturing method for a phase shifter, the method comprising:
forming a first substrate and a second substrate; and oppositely arranging the first substrate and the second substrate to form a sealing frame structure in peripheral regions of the first substrate and the second substrate for fixing relative positions of the two substrates to form a gap for accommodating a liquid crystal material, wherein the sealing frame structure comprises a support, and sealant for bonding to the first substrate, on the support.

12 . The method according to claim 11 , wherein the sealing frame structure further comprises sealant for bonding to the second substrate, on the support;
or a forming material of the support is the same as that of the first substrate or that of the second substrate.

13 . The method according to claim 11 , wherein said forming a first substrate and a second substrate comprises:
forming the first substrate and the second substrate, wherein the support is formed on the first substrate and the support is annularly distributed in the peripheral region of the first substrate; or forming the first substrate and the second substrate, wherein the support is formed on the second substrate and the support is annularly distributed in the peripheral region of the second substrate.

14 . The method according to claim 13 , wherein
the support is integrally formed with the first substrate; or the support is integrally formed with the second substrate.

15 . The method according to claim 11 , wherein said oppositely arranging the first substrate and the second substrate to form a sealing frame structure in peripheral regions of the first substrate and the second substrate comprises:
coating the support with the sealant; and oppositely arranging the first substrate and the second substrate through the sealant to form the sealing frame structure in peripheral regions of the first substrate and the second substrate.

16 . A liquid crystal antenna comprising at least one phase shifter, wherein
each phase shifter comprises: a first substrate and a second substrate which are oppositely arranged; and a sealing frame structure located in peripheral regions of the first substrate and the second substrate for fixing relative positions of the two substrates to form a gap for accommodating a liquid crystal material, wherein the sealing frame structure comprises a support, and sealant for bonding to the first substrate, on the support.

17 . The liquid crystal antenna according to claim 16 , wherein the sealing frame structure further comprises sealant for bonding to the second substrate, on the support.

18 . The liquid crystal antenna according to claim 16 , wherein a forming material of the support is the same as that of the first substrate or that of the second substrate.

19 . The liquid crystal antenna according to claim 16 , wherein
the support is annularly distributed in the peripheral region of the first substrate, or the support is annularly distributed in the peripheral region of the second substrate.

20 . A communication device comprising the liquid crystal antenna according to claim 16 .

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Optoelectronics Tech Co Ltd

Inventors

• Dong Tingze
• Li Jingpeng
• Zhou Yongshan

Classifications

• H01Q3/36 Primary

  with variable phase-shifters · CPC title

• H01Q9/0407 Primary

  Substantially flat resonant element parallel to ground plane, e.g. patch antenna (dipole H01Q9/285; monopole H01Q9/40) · CPC title

• H01Q1/364

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

• H01Q3/44

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

• H01Q1/14 Primary

  for wire or other non-rigid radiating elements · CPC title