公开(公告)号：US20230361769A1

公开(公告)日：2023-11-09

申请号：US18351282

申请日：2023-07-12

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Yukun HUANG ,  Linzhi WANG ,  Kerui XI ,  Baiquan LIN ,  Zhenyu JIA ,  Aowen LI ,  Haotian LU

IPC: G01D11/00 ,  H03K17/56

CPC classification number: H03K17/56 ,  G01D11/00

Abstract: Provided are a sensing circuit and a sensing method thereof, a sensor chip, and a display panel. The sensing circuit includes a first transistor including a first gate and a second gate, a first capacitor, a read circuit, and a bias compensation circuit. The first gate receives a sensing signal outputted by a sensor. The first capacitor is connected between the second gate and a first fixed potential signal terminal. The read circuit is connected between the first transistor and an output terminal of the sensing circuit. The bias compensation circuit is electrically connected to the first transistor and configured to input a bias voltage into the second gate of the first transistor. The bias voltage received by the second gate reduce the threshold voltage drift of the first transistor.

公开(公告)号：US20230138258A1

公开(公告)日：2023-05-04

申请号：US17574344

申请日：2022-01-12

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Dengming LEI ,  Kerui XI ,  Zhenyu JIA ,  Ping SU ,  Huihui JIANG ,  Yi WANG ,  Wei LI ,  Huan LI ,  Feng QIN

IPC: H01Q3/36

Abstract: A scanning antenna is provided in the present disclosure. The scanning antenna includes a first substrate and a second substrate which are arranged oppositely; a liquid crystal layer between the first substrate and the second substrate; and a feed signal access terminal and a plurality of phase shift units, where the plurality of phase shift units is connected with each other, each phase shift unit is connected to the feed signal access terminal, and electrical lengths between at least two phase shift units and the feed signal access terminal are different. The present disclosure not only realizes one-dimensional wave beam scanning, but also has desirable scanning effect. The bias voltage is not needed to be independently applied to each phase shift unit, which can greatly simplify the bias voltage line configuration and be beneficial for reducing production cost and wiring difficulty.

公开(公告)号：US20220285843A1

公开(公告)日：2022-09-08

申请号：US17348842

申请日：2021-06-16

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Linzhi WANG ,  Kerui XI ,  Dengming LEI ,  Zhenyu JIA

IPC: H01Q9/04 ,  H01L25/075 ,  H01L27/32 ,  H01L25/16

Abstract: Provided are an antenna and a preparation method thereof, a phase shifter, and a communication device. The antenna includes a first electrode, a second electrode, a third electrode, and a photodielectric variable layer. The first electrode and the second electrode are respectively disposed on opposite two sides of the photodielectric variable layer. The first electrode includes a plurality of transmission electrodes, and the plurality of transmission electrodes are configured to transmit an electrical signal. The second electrode is provided with a fixed potential. The third electrode includes a plurality of radiator units, and the plurality of radiator units are configured to send the electrical signal. The antenna further includes at least one light-emitting element configured to emit light irradiated to the photodielectric variable layer to change a dielectric constant of the photodielectric variable layer.

公开(公告)号：US20220102871A1

公开(公告)日：2022-03-31

申请号：US17547647

申请日：2021-12-10

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Zhenyu JIA ,  Kerui XI ,  Baiquan LIN ,  Linzhi WANG ,  Qinyi DUAN ,  Zuocai YANG ,  Feng QIN

IPC: H01Q21/00 ,  H01Q3/26

Abstract: Provided is an antenna. The antenna includes a first metal electrode, a second metal electrode, and a dielectric functional layer. The first metal electrode and the second metal electrode are located on two opposite sides of the dielectric functional layer, respectively; and the first metal electrode includes a plurality of transmission electrodes. The antenna further includes a flexible coplanar waveguide and a feed network. The flexible coplanar waveguide is electrically connected to the feed network and configured to feed an electrical signal to the feed network.

公开(公告)号：US20210408680A1

公开(公告)日：2021-12-30

申请号：US16999781

申请日：2020-08-21

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Kerui XI ,  Xuhui PENG ,  Feng QIN ,  Tingting CUI ,  Zhenyu JIA ,  Ping SU ,  Yuantao WU

IPC: H01Q3/36 ,  H01Q3/26

Abstract: A phase shifter and a manufacturing method thereof and an antenna and a manufacturing method thereof are provided. The phase shifter includes: first and second substrates opposite to each other; a first electrode provided on the first substrate and configured to receive a ground signal; a second electrode provided on a side of the second substrate facing towards the first substrate; liquid crystals encapsulated between the first substrate and the second substrate and driven by the first electrode and the second electrode to rotate; and a support structure provided between the first substrate and the second substrate and including a first spacer. The first spacer is located on a side of the second electrode facing away from the second substrate, and an orthographic projection of the first spacer on the second substrate is within an orthographic projection of the second electrode on the second substrate.