Patent ID: 8068088

Claim:
A display device comprising: a display panel having a first panel and a second panel that face each other with a liquid crystal layer disposed between the first panel and the second panel; a plurality of first sense data lines extending in a row direction on the second panel; a plurality of second sense data lines extending in a column direction on the second panel; a plurality of sensing units positioned in regions defined by the first and second sense data lines, wherein a first sense data line is connected to a second sense data line by a contact to output a first sense data signal through the first sense data line and a second sense data signal through the second sense data line; and a sense signal processor reading and processing the first and second sense data signals, wherein at least one of the sensing units comprises: a first transistor having a control terminal, a first non-control terminal connected to each of the first sense data lines, and a second non-control terminal connected to each of the second sense data lines; and a second transistor having a control terminal receiving an initializing signal to turn off the first transistor, a first non-control terminal connected to each of the first sense data lines, and a second non-control terminal connected to the control terminal of the first transistor, and wherein the contact is application of physical pressure to the corresponding sensing unit.