Patent ID: 9122348
Filing Date: 2015-09-01
Classification: G06F,H03M

Abstract:
1. A touch panel comprising: a first pixel including a first photosensor portion detecting light with a first color; a second pixel including a second photosensor portion detecting light with a second color; a first A/D converter performing A/D conversion on a first output signal of the first photosensor portion; and a second A/D converter performing A/D conversion on a second output signal of the second photosensor portion, wherein voltage resolution of the first A/D converter and voltage resolution of the second A/D converter are different, wherein each of the first A/D converter and the second A/D converter comprises a D/A converter and a comparator being electrically connected to the D/A converter through a DAC output signal line, wherein each of the first photosensor portion and the second photosensor portion comprises a transistor and a photodiode, wherein one of a source and a drain of the transistor is electrically connected to the comparator through a photosensor signal line, wherein a gate of the transistor is electrically connected to one electrode of the photodiode, and wherein the comparator is configured to compare a potential of the DAC output signal line and a potential of the photosensor signal line.