阅读说明：本技术 一种液晶天线 (Liquid crystal antenna ) 是由 谢志生 于 2020-05-21 设计创作，主要内容包括：本发明公开了一种液晶天线,所述液晶天线包括：相对设置的第一基板和第二基板,以及位于第一基板与第二基板之间的液晶结构；所述第一基板靠近所述液晶结构的一侧设置有第一电极；所述第二基板靠近所述液晶结构的一侧依次设置有天线辐射体和第二电极。本申请将天线辐射体设置在液晶相控阵器件的盒内,即将天线辐射体做在其中一个基板上靠近液晶结构的面上,这样获得的液晶天线在基板的外侧没有任何图案。利于对该液晶天线减薄获得所需厚度的液晶天线,且利于后续对液晶天线进行二次加工,进行装配等。(The invention discloses a liquid crystal antenna, comprising: the liquid crystal display panel comprises a first substrate, a second substrate and a liquid crystal structure, wherein the first substrate and the second substrate are oppositely arranged, and the liquid crystal structure is positioned between the first substrate and the second substrate; a first electrode is arranged on one side, close to the liquid crystal structure, of the first substrate; and an antenna radiator and a second electrode are sequentially arranged on one side of the second substrate close to the liquid crystal structure. According to the liquid crystal phased array antenna, the antenna radiating body is arranged in the box of the liquid crystal phased array device, namely the antenna radiating body is arranged on the surface, close to the liquid crystal structure, of one substrate, and the liquid crystal antenna obtained in the way does not have any pattern on the outer side of the substrate. The liquid crystal antenna with the required thickness can be obtained by thinning the liquid crystal antenna, and the subsequent secondary processing, assembly and the like of the liquid crystal antenna are facilitated.)

1. A liquid crystal antenna, comprising:

the liquid crystal display panel comprises a first substrate, a second substrate and a liquid crystal structure, wherein the first substrate and the second substrate are oppositely arranged, and the liquid crystal structure is positioned between the first substrate and the second substrate;

a first electrode is arranged on one side, close to the liquid crystal structure, of the first substrate;

and an antenna radiator and a second electrode are sequentially arranged on one side of the second substrate close to the liquid crystal structure.

2. The liquid crystal antenna of claim 1, wherein the antenna radiator comprises an antenna radiating structure having a flat surface on a side facing away from the second substrate; the antenna radiating structure includes a main signal conductive layer.

3. The liquid crystal antenna of claim 2, wherein the antenna radiating structure further comprises a filler layer located at the perimeter of the main signal conducting layer.

4. The liquid crystal antenna of claim 2, wherein a side surface of the second substrate facing away from the liquid crystal structure has a groove, and the groove is located above the main signal conducting layer.

5. The liquid crystal antenna of claim 2, wherein a side surface of the second substrate facing away from the liquid crystal structure has a through hole, and a part of the structure of the main signal conductive layer is exposed out of the through hole.

6. The liquid crystal antenna of claim 5, wherein the through hole is offset from the liquid crystal structure in an up-down direction.

7. The liquid crystal antenna of claim 2, wherein the second electrode has a conductive layer feeding area on a surface thereof, and the main signal conductive layer and the conductive layer feeding area are disposed opposite to each other in a vertical direction.

8. The liquid crystal antenna according to claim 2, wherein the main signal conductive layer is composed of a first metal layer, a second metal layer, and a third metal layer which are laminated in this order; the first metal layer and the third metal layer are made of anti-oxidation metal, and the second metal layer is made of high-conductivity metal; the thicknesses of the first metal layer and the third metal layer are respectively smaller than that of the second metal layer.

9. The liquid crystal antenna of claim 1, wherein the first substrate and the second substrate are both flexible substrates.

10. The liquid crystal antenna of claim 1, wherein the antenna radiator further comprises a main protective layer disposed between the antenna radiator and the second electrode.

Technical Field

The invention relates to the technical field of wireless communication, in particular to a liquid crystal antenna.

Background

In the current liquid crystal antenna, the antenna radiation unit and the liquid crystal phased array device are separately manufactured and then attached together.

For example, CN201910185803.1 discloses a liquid crystal antenna, in which the antenna radiator (antenna radiation unit) is generally made of a highly conductive material. The antenna radiator may be a rectangular, circular, or square patch, and may be chamfered, typically by a patch process attached to the liquid crystal phased array device.

Alternatively, in some embodiments, the antenna radiator is fabricated directly on the outer surface of the liquid crystal phased array device, for example, the antenna radiator is fabricated on a side of one of the substrates of the liquid crystal phased array device facing away from the liquid crystal.

In the existing design, the antenna radiator is located at the outer side of the liquid crystal phased array device, which is not beneficial to thinning the liquid crystal antenna and carrying out secondary processing on the liquid crystal antenna.

Disclosure of Invention

In order to solve the above problems, the present application provides a liquid crystal antenna structure different from the related art.

The invention provides a liquid crystal antenna, comprising:

the liquid crystal display panel comprises a first substrate, a second substrate and a liquid crystal structure, wherein the first substrate and the second substrate are oppositely arranged, and the liquid crystal structure is positioned between the first substrate and the second substrate;

a first electrode is arranged on one side, close to the liquid crystal structure, of the first substrate;

and an antenna radiator and a second electrode are sequentially arranged on one side of the second substrate close to the liquid crystal structure.

As a further improvement of the present invention, the antenna radiator includes an antenna radiation structure, and a surface of the antenna radiation structure on a side away from the second substrate is flat; the antenna radiating structure includes a main signal conductive layer.

As a further improvement of the present invention, the antenna radiation structure further includes a filling layer located at the periphery of the main signal conductive layer.

As a further improved solution of the present invention, a side surface of the second substrate facing away from the liquid crystal structure has a groove, and the groove is located above the main signal conductive layer.

As a further improvement of the present invention, a side surface of the second substrate facing away from the liquid crystal structure has a through hole, and a part of the main signal conductive layer is exposed out of the through hole.

In a further improved aspect of the present invention, the through hole is provided to be vertically offset from the liquid crystal structure.

As a further improvement of the present invention, the second electrode surface has a conductive layer feeding area, and the main signal conductive layer and the conductive layer feeding area are disposed opposite to each other in the up-down direction.

As a further improvement of the present invention, the main signal conductive layer is composed of a first metal layer, a second metal layer, and a third metal layer which are stacked in this order; the first metal layer and the third metal layer are made of anti-oxidation metal, and the second metal layer is made of high-conductivity metal; the thicknesses of the first metal layer and the third metal layer are respectively smaller than that of the second metal layer.

As a further improvement of the present invention, the first substrate and the second substrate are both flexible substrates.

As a further improvement of the present invention, the antenna radiator further includes a main protective layer disposed between the antenna radiator and the second electrode.

Compared with the prior art, the invention has the following beneficial effects:

according to the liquid crystal phased array antenna, the antenna radiator is arranged in the box of the liquid crystal phased array device, namely, the antenna radiator is arranged on the surface, close to the liquid crystal structure, of one substrate, and the liquid crystal antenna obtained in the way does not have any pattern on the outer side of the substrate. The liquid crystal antenna with the required thickness can be obtained by thinning the liquid crystal antenna, and the subsequent secondary processing, assembly and the like of the liquid crystal antenna are facilitated.

Drawings

Fig. 1 is a schematic structural diagram of a liquid crystal antenna according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a liquid crystal antenna according to a second embodiment of the present invention;

fig. 3 is a schematic structural diagram of a liquid crystal antenna according to a third embodiment of the present invention;

fig. 4 is a schematic structural diagram of a liquid crystal antenna according to a fourth embodiment of the present invention;

fig. 5 is a flowchart of a method for manufacturing a liquid crystal antenna according to an embodiment of the invention.

Reference numerals:

a first substrate 10, a first electrode 20, a first control conductive layer 21, a first protective layer 22,

A second substrate 30, a second electrode 40, a second control conductive layer 41, a second passivation layer 42, a conductive layer feeding region 412,

Antenna radiator 50, main signal conductive layer 51, filling layer 52, main protective layer 53, groove 54, through hole 55,

The liquid crystal display device comprises a liquid crystal structure 60, a frame sealing structure 61, a liquid crystal layer 62, a first alignment layer 63 and a second alignment layer 64.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The liquid crystal antenna of the present invention is further described with reference to the accompanying drawings and embodiments: