公开(公告)号：US20230168768A1

公开(公告)日：2023-06-01

申请号：US18070670

申请日：2022-11-29

Applicant: Japan Display Inc.

Inventor： Mitsuhiro SUGAWARA ,  Norio MAMBA

IPC: G06F3/041 ,  G11C19/28 ,  G09G3/20

CPC classification number: G06F3/04166 ,  G11C19/28 ,  G09G3/2096 ,  G09G2310/0286 ,  G09G2310/061

Abstract: A display device includes: pixels arranged in a display region; photodiodes provided in two or more of the pixels, respectively; a shift register circuit configured to sequentially output an output signal to the pixels and the photodiodes; a switching circuit configured to switch coupling between the shift register circuit and the pixels, and coupling between the shift register circuit and the photodiodes; and a control circuit configured to control a display period for display by the pixels and a detection period for detection by the photodiodes in a time division manner. The control circuit is configured to sequentially output a gate drive signal to the pixels by an operation of the shift register circuit and the switching circuit in the display period, and sequentially output a sensor control signal to the photodiodes by an operation of the shift register circuit and the switching circuit in the detection period.

公开(公告)号：US20230033119A1

公开(公告)日：2023-02-02

申请号：US17875653

申请日：2022-07-28

Applicant: Japan Display Inc.

Inventor： Daijiro TAKANO ,  Mitsuhiro SUGAWARA

IPC: G06F3/041 ,  G06F3/042 ,  G06V40/13

Abstract: A detection device includes a sensor circuit in which a plurality of detection elements each comprising a photoelectric conversion element are arranged in a matrix having a row-column configuration in a detection area, and a detector having a touch detection period of detecting an object to be detected in contact with or in proximity to the sensor circuit and a fingerprint detection period of detecting asperities on a surface of the object to be detected.