Patent ID: 8610679

Claim:
A touch sensing display device comprising: a first substrate; a second substrate parallel to the first substrate, a plurality of scanning lines and a plurality of sensing lines being disposed on the second substrate, and the scanning lines being interlaced with the sensing lines; a plurality of touch switches disposed on the second substrate, each touch switch being connected between one of the scanning lines and one of the sensing lines in series; a plurality of switch elements, wherein each switch element is connected with one of the touch switches, and the switch element and the touch switch are connected between each scanning line and each sensing line in series, each switch element operates according to a scan signal, and said switch element is turned on when receiving the scan signal; and a plurality of spacers disposed on the first substrate corresponding to the touch switches, respectively, each spacer having a conductive layer disposed on a bottom side facing to the corresponding touch switch, and having isolating surfaces on the other sides; wherein each touch switch has a turned-on state and a turned-off state, and the conductive layer of the spacer corresponding thereto causes said touch switch to be changed from the turned-off state to the turned-on state when a touch event is received; and wherein each switch element comprises a metal oxide semiconductor (MOS) diode, which is a metal oxide semiconductor field effect transistors (MOSFET) having a gate thereof connected to a source or to a drain thereof.