公开(公告)号：US20240361250A1

公开(公告)日：2024-10-31

申请号：US18644439

申请日：2024-04-24

Applicant: Japan Display Inc.

Inventor： Akihiko FUJISAWA ,  Takanori TSUNASHIMA ,  Kaoru ITO ,  Shiori TEZEN

IPC: G01N21/84

CPC classification number: G01N21/84

Abstract: According to an aspect, a detection device includes: a planar detection device including photodetection elements arranged in a planar configuration; a light source device disposed so as to face the planar detection device; and a light-transmitting placement substrate that is disposed between the planar detection device and the light source device and configured to allow objects to be placed thereon. The planar detection device includes: a detection area where sensor pixels including the photodetection elements are arranged in a first direction and a second direction orthogonal to the first direction; a drive circuit configured to simultaneously supply drive signals to the sensor pixels arranged in the first direction; and a selection circuit configured to select a detection signal for each of the sensor pixels arranged in the second direction. The detection area is divided in the second direction into detection blocks. The drive circuit is provided for each detection block.