Patent ID: 9489088
Filing Date: 2016-11-08
CPC Classification: G06F,H05B,Y02B

Claim Text:
1. An input-output device comprising: a light unit comprising Z (Z is a natural number of 3 or more) first light-emitting diodes emitting light with a wavelength in a visible light range and a second light-emitting diode emitting light with a wavelength in an infrared range; X (X is a natural number) display circuits overlapping with the light unit; and a plurality of photodetectors overlapping with the light unit, wherein the plurality of photodetectors include a filter for absorbing light with a wavelength in a visible light range, wherein each of the plurality of photodetectors comprises a first transistor, a second transistor and a photoelectric conversion element, wherein one of a source electrode and a drain electrode of the first transistor is electrically connected to the photoelectric conversion element, wherein a gate of the second transistor is electrically connected to the other of the source electrode and the drain electrode of the first transistor, wherein the Z first light-emitting diodes configured to emit light of different colors, wherein the Z first light-emitting diodes configured to emit light sequentially in a first frame period, wherein the second light-emitting diode is configured not to emit light during a first period in which a first light-emitting diode of the Z first light-emitting diodes emits light and configured to emit light during a second period in which second to Z-th light-emitting diodes of the Z first light emitting diodes emit light sequentially, in the first frame period, wherein the X display circuits are configured to receive a display selection signal, receive a display data signal in accordance with the display selection signal, and set to be in a display state in accordance with data of the display data signal, and wherein the plurality of photodetectors are configured to perform detection by a global shutter method in which the plurality of photodetectors receive the same photodetection control signal, and generate data based on illuminance of incident light in accordance with the photodetection control signal during the second period of the first frame period.