Patent ID: 8325130

Claim:
A touch type electrophoretic display device comprising: a first substrate on which a plurality of gate lines and a plurality of data lines cross to define a plurality of pixels; a plurality of sensing signal lines formed to be parallel to the data lines on the first substrate; a plurality of first touch driving voltage lines formed to be parallel to the gate lines; a driving thin film transistor (TFT) formed at each pixel so as to be connected to the gate lines and the data lines; a pixel electrode formed at each pixel so as to be connected to the driving TFT; a switching TFT formed at each pixel so as to be connected to the sensing signal lines and the gate lines; a photo TFT formed in each pixel so as to be connected to the first touch driving voltage lines and the switching TFT and serving to recognize an applied touch; a second substrate attached to the first substrate in a facing manner; a common electrode formed on the second substrate; an electrophoretic film formed between the first and second substrates; a lead-out driver for detecting a position of the photo TFT when a sensing signal is transferred via the switching TFT in a corresponding pixel and the sensing signal lines according to an operation of the photo TFT, and outputting touch data; a gate control signal generating unit for outputting a second gate control signal indicating a touch mode operation when touch data is not inputted from the lead-out driver, and outputting a first gate control signal indicating a driving mode operation for converting an image if it is determined that a touch has been applied upon receiving touch data from the lead-out driver; and a gate driver for driving the gate lines upon receiving the first or second gate control signal from the gate control signal generating unit, wherein a timing at which each gate line is turned on and off when the gate driver receives the first gate control signal and a timing at which each gate line is turned on and off when the second gate control signal is received are different, wherein a touch data analyzing unit for generating a touch mode switching signal if no touch data is inputted from the lead-out driver, and generating a driving mode switching signal if it is determined that a touch has been applied after touch data is received from the lead-out driver and analyzed, and wherein a driving start signal for a driving mode operation is inputted to the touch data analyzing unit of the gate control signal generating unit at an early driving, and when the driving start signal is inputted to the touch data analyzing unit, the touch data analyzing unit outputs a driving mode switching signal to the switching unit.