公开(公告)号：US20230305175A1

公开(公告)日：2023-09-28

申请号：US18125688

申请日：2023-03-23

Applicant: Sharp Display Technology Corporation

Inventor： Kohzoh TAKAHASHI

IPC: G01T1/24

CPC classification number: G01T1/247

Abstract: An X-ray image capturing apparatus includes a photoelectric conversion element, a TFT, a gate drive circuit, a control circuit, and a filter section. The TFT is connected to the photoelectric conversion element. The gate drive circuit supplies a gate signal to a gate electrode of the TFT. The control circuit supplies a control signal to the gate drive circuit. The filter section attenuates a component of the gate signal or the control signal that has a frequency lower than a prescribed frequency.

公开(公告)号：US20220390626A1

公开(公告)日：2022-12-08

申请号：US17830479

申请日：2022-06-02

Applicant: Sharp Display Technology Corporation

Inventor： Kohzoh TAKAHASHI ,  Akinori KUBOTA

IPC: G01T1/20 ,  G01T1/208 ,  H01L27/146 ,  A61B6/00

Abstract: An X-ray imaging apparatus includes an X-ray source, an X-ray imaging panel, and a controller. The controller includes an image processing unit that generates an inspection image in accordance with a data signal read from a thin-film transistor with the thin-film transistor supplied with a gate signal, a detection control unit that detects a dark-spot pixel from the inspection image, and a threshold correction unit that applies, to a gate of the thin-film transistor corresponding to the dark-spot pixel, a positive shift voltage that raises a gate-off threshold voltage of the thin-film transistor.