Patent ID: 9035908
Filing Date: 2015-05-19
Classification: G02F,G06F,G09G

Abstract:
1. A touch panel comprising: a pixel circuit including a plurality of pixels, each pixel including a photo sensor; and a photo sensor signal line reading circuit for taking an output signal of the photo sensor, the photo sensor signal line reading circuit including a plurality of A/D converter circuits and an ADC control circuit, wherein the plurality of A/D converter circuits are provided at every one column or at every plurality of columns of the plurality of pixels, wherein the ADC control circuit includes a shift register configured to sequentially supply ADC enable signals to the plurality of A/D converter circuits, and wherein each of the plurality of A/D converter circuits is connected to the ADC control circuit via an ADC enable signal line, a plurality of ADC reset signal lines, a plurality of ADC set signal lines, and an ADC output signal line.