Patent ID: 8638399

Claim:
A touch display device, comprising: a liquid crystal display device, including: an active array substrate; a color filter layer disposed parallel to the active array substrate; a liquid crystal layer disposed between the active array substrate and the color filter layer; and a common electrode disposed on the liquid crystal layer; a touch panel, disposed on the liquid crystal display device, and including: a transparent cover plate; and a touch sensor disposed on the transparent cover plate, and comprising: a plurality of first sensing electrodes disposed directly on the transparent cover plate in a first direction; a plurality of second sensing electrodes disposed directly on the transparent cover plate in a second direction, wherein the second direction is perpendicular to the first direction; and an insulating layer disposed between the first sensing electrodes and the second sensing electrodes; a transparent shielding layer disposed between the liquid crystal display device and the touch sensor, and including an edge region and a central region; and a low-impedance layer disposed in the edge region of the transparent shielding layer and grounded with the transparent shielding layer in common.