Patent ID: 8305340
Filing Date: 2012-11-06
Classification: G02F,G06F

Abstract:
1. A display device comprising: a display panel unit; a sensing unit formed on the display panel unit, wherein the sensing unit comprises a sensing transistor for sensing light, and the sensing transistor comprises a control terminal which receives a sensing control voltage, an input terminal which receives a sensing input voltage and an output terminal which outputs a sensor data signal; a sensing signal processor which receives the sensor data signal to generate a sensing signal and generates a feedback signal based on the sensing signal; and a compensation unit which receives the feedback signal and adjusts at least one of the sensing control voltage and the sensing input voltage such that the sensing signal is bounded in a predetermined range, wherein the adjusted at least one of the sensing control voltage and the sensing input voltage is inputted to at least one of the control terminal and the input terminal of the sensing transistor to detect a touch.