INPUT/OUTPUT DEVICE AND DRIVING METHOD OF INPUT/OUTPUT DEVICE

摘要

PROBLEM TO BE SOLVED: To improve light detection accuracy.

SOLUTION: An input/output device comprises: a light unit including Z pieces of first light-emitting diodes (Z is a natural number of 3 or more) that emit light with a wavelength in a visible light region and a second light-emitting diode that emits light with a wavelength in an infrared region; a display circuit to which a display selection signal is input, a display data signal is input in accordance with the display selection signal, and which provides a display state according to data of the display data signal to be input; a filter that absorbs light with a wavelength in a visible light region. A light detection control signal is input, and the input/output device comprises Y pieces of light detection circuits (Y is a natural number) that generate data according to the illuminance of incident light, in response to the light detection control signal that is input.

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