Touch display device
A touch display device including a display, a touch panel and a transparent shielding layer is provided. The touch panel is disposed on the display, and includes a substrate and touch sensors positioned thereon. The transparent shielding layer is set between the display and the touch sensors of the touch panel, and includes an edge region and a central region wherein the impedance of the edge region is less than or equal to that of the central region.
1. 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.
2. The touch display device according to claim 1 , wherein the transparent shielding layer and the low-impedance layer are disposed on a surface of the color filter layer facing the active array substrate.
3. The touch display device according to claim 1 , wherein the transparent shielding layer and the low-impedance layer are disposed on a surface of the color filter layer far away from the active array substrate.
4. The touch display device according to claim 1 , wherein the low-impedance layer is made of metal material.
5. 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 substrate, wherein the color filter layer of the liquid crystal display device is integrally formed on the substrate; and
a touch sensor disposed on the substrate, and comprising:
a plurality of first sensing electrodes disposed in a first direction;
a plurality of second sensing electrodes disposed 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.