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1.发明公开
公开(公告)号：EP3745527A1
公开(公告)日：2020-12-02
申请号：EP19863992.4
申请日：2019-04-11
发明人： LIU, Zhisheng , XU, Xiangzhan , WANG, Lixiong , HUANG, Yingqun , WANG, Huxin , ZAN, Duanqing , HE, Jiqiang
摘要： The present disclosure provides a liquid crystal phase shifter, including a first substrate and a second substrate which are disposed oppositely, and a liquid crystal layer located between the first substrate and the second substrate. A first metal film layer is disposed on a side of the first substrate facing the second substrate. A second metal film layer is disposed on a side of the second substrate facing the first substrate. The first metal film layer and the second metal film layer arc both patterned metal film layers. The first substrate and the second substrate are both PCBs. The present disclosure further provides a liquid crystal antenna, including the abovementioned liquid crystal phase shifter. The present disclosure further provides a manufacturing method of a liquid crystal phase shifter, which is used for manufacturing the abovementioned liquid crystal phase shifter. In ultra-high-frequency wireless communications, the larger a dielectric constant and a dielectric loss value of a substrate material are, the higher the dielectric loss is, and the poorer signals are. The PCBs used in the present application are used as the substrates of the liquid crystal antenna. The dielectric constants and the dielectric loss of the PCBs are less than those of a glass substrate usually used by a liquid crystal panel, so that the PCBs are lower in dielectric loss, which is favorable for improving the performance of the liquid crystal antenna in ultra-high frequency band application.
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公开(公告)号：EP3736626A1
公开(公告)日：2020-11-11
申请号：EP19863991.6
申请日：2019-03-14
发明人： LIU, Zhisheng , XU, Xiangzhan , WANG, Zhiling , LYU, Taitian , LU, Zhuoqian , WANG, Lixiong , HE, Jiqiang
IPC分类号： G02F1/1343 , H01Q1/38 , G02F1/13
摘要： The disclosure discloses a liquid crystal antenna, including a first substrate and a second substrate which are oppositely arranged and a liquid crystal layer positioned between the first substrate and the second substrate, wherein a first metal film layer is arranged on one side, facing the second substrate, of the first substrate, a second metal film layer is arranged on one side, facing the first substrate, of the second substrate, the first substrate and the second substrate are rigid substrates, a seed layer is arranged between the first substrate and the first metal film layer, and a seed layer is arranged between the second substrate and the second metal film layer. The disclosure also provides a method for manufacturing a liquid crystal antenna, the seed layers are firstly manufactured on the surfaces of the substrates, and then the corresponding metal film layers are formed on the seed layers through plating, so that the thicknesses of the metal film layers can reach the µm grade, and the performance of the liquid crystal antenna is ensured. The problems of repeated plating, low efficiency, serious thermal deformation and the like in the vacuum magnetron sputtering process are avoided, the adhesion between the metal film layers and the substrates is strong, and the liquid crystal antenna which can be manufactured on a large scale at low cost is provided.
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公开(公告)号：EP3736618A1
公开(公告)日：2020-11-11
申请号：EP19863988.2
申请日：2019-03-14
发明人： LIU, Zhisheng , XU, Xiangzhan , WANG, Zhiling , LYU, Taitian , LU, Zhuoqian , WANG, Lixiong , HE, Jiqiang
摘要： The present disclosure provides a manufacturing method of a flat panel liquid crystal antenna, including the following steps: providing a first substrate, wherein the two sides of the first substrate are provided with a first metal film layer and a third metal film layer respectively; simultaneously patterning the metal film layer on the two sides to obtain a patterned first metal film layer and a patterned third metal film layer; providing a second substrate, wherein one side of the second substrate is provided with a second metal film layer; patterning the second metal film layer to obtain a patterned second metal film layer; and oppositely bonding the first substrate and the second substrate to form a liquid crystal cell, and preparing a liquid crystal layer. The present disclosure also provides a flat panel liquid crystal antenna by using the above method. Through structural improvement, simultaneous patterning of the metal on the two sides is made possible, most low-efficiency yellow-light procedures are omitted, and time for busy waiting and model switching is saved. The flat panel liquid crystal antenna can be manufactured on a large scale, the manufacturing efficiency is improved, and the manufacturing cost is reduced.
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公开(公告)号：EP3736625A1
公开(公告)日：2020-11-11
申请号：EP19863989.0
申请日：2019-03-14
发明人： LIU, Zhisheng , XU, Xiangzhan , WANG, Zhiling , LYU, Taitian , WANG, Lixiong , LU, Zhuoqian , HE, HE Jiqiang
IPC分类号： G02F1/1339 , H01P1/18
摘要： The present disclosure provides a liquid crystal phase shifter, comprising a first substrate and a second substrate which are oppositely arranged, and a liquid crystal layer positioned between the first substrate and the second substrate, wherein a plurality of spacers are distributed in the liquid crystal layer, the spacers are in contact with the first substrate and the second substrate, and include a first spacer arranged on the first substrate and a second spacer arranged on the second substrate, and the first spacer and the second spacer are abutted. The present disclosure also provides a manufacturing method of the liquid crystal phase shifter. The first spacer and the second spacer are arranged on the first substrate and the second substrate respectively, so that the thickness of a support of the liquid crystal phase shifter being 100 µm or above is realized, and the performance of the liquid crystal phase shifter is ensured. Besides, the liquid crystal phase shifter is easy to manufacture, and the liquid crystal phase shifter with the thick cell can be manufactured on a large scale.
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