Patent ID: 8514200

Claim:
A capacitive touch display panel, comprising: a display panel, comprising a sensing region; a touch sensing unit, disposed in the sensing region of the display panel, the touch sensing unit comprising: a plurality of first sensing series, disposed along a first direction, wherein each of the first sensing series comprises a plurality of first sensing pads electrically connected to each other; and a plurality of second sensing series, disposed along a second direction, wherein each of the second sensing series comprises a plurality of second sensing pads electrically connected to each other; and a plurality of floating gate type electrostatic discharge (ESD) protection devices, disposed in the sensing region of the display panel, each floating gate type ESD protection device comprising a patterned conductive layer, a dielectric layer and a patterned semiconductor layer, each floating gate type ESD protection device being disposed between two adjacent first sensing pads and two adjacent second sensing pads, wherein the two adjacent first sensing pads are not directly electrically connected to each other, and the two adjacent second sensing pads are not directly electrically connected to each other, wherein the patterned semiconductor layer of each floating gate type ESD protection device partially overlaps the two adjacent first sensing pads which are not directly electrically connected to each other and the two adjacent second sensing pads which are not directly electrically connected to each other, wherein the patterned conductive layer of each floating gate type ESD protection device is disposed on the display panel, the dielectric layer is disposed on the patterned conductive layer, the patterned semiconductor layer is disposed on the dielectric layer, and the first sensing pads and the second sensing pads are disposed on the patterned semiconductor layer.