FIELD: physics.
SUBSTANCE: display device has a photosensor in a pixel region (1) of an active matrix substrate (100). The photosensor is provided with a photodetection element (D1) which receives incident light; a capacitor (C2), one electrode of which is connected to the photodetection element (D1), which accumulates output current from the photodetection element (D1); reset signal wiring (RST) which supplies a reset signal to the photosensor; readout signal wiring (RWS) which supplies a readout signal to the photosensor; and a sensor switching element (M2) which, in accordance with the readout signal, reads out the output current accumulated in the capacitor (C2) from when the reset signal is supplied until when the readout signal is supplied. Conductive wiring (ML) is provided along readout wiring (SLr) which is meant for reading out the output current, the conductive wiring (ML) being connected to neither the photodetection element (D1) in the pixel region nor a pixel switching element (M1) of the pixel region.
EFFECT: design of a display device with a photosensor in which the time required for reading out output signals from photosensors is reduced.
10 cl, 11 dwg
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Authors
Dates
2012-07-27—Published
2009-04-28—Filed