Foldable touch display device
A foldable touch display device is provided, including a display module, a touch sensing film, a plurality of transmission lines, and a first adhesive layer. The display module has an upper surface, a side surface, and a lower surface. The touch sensing film is disposed under the display module and extends and bends along the side surface to the upper surface. The touch sensing film includes a plurality of electrode lines disposed on one side of the touch sensing film. The transmission lines cover the electrode lines located at the upper surface of the display module. The first adhesive layer is disposed on the side of the touch sensing film adjacent to the display module. The foldable touch display device can reduce the radius of curvature in the bending area and reduce the thickness of the foldable touch display device.
1. A foldable touch display device, comprising:
a display module comprising an upper surface, a side surface, and a lower surface;
a touch sensing film disposed on the lower surface of the display module and bending and extending along the side surface to the upper surface, the touch sensing film comprising:
a plurality of electrode lines disposed on one side of the touch sensing film;
a plurality of transmission lines covering an end of the electrode lines located at the upper surface of the display module; and
a first adhesive layer disposed on one side of the touch sensing film adjacent to the display module.
2. The foldable touch display device of claim 1 , wherein the electrode lines adjacent to the side surface and the upper surface have a line width of more than 0.4 mm between each other.
3. The foldable touch display device of claim 1 , wherein the transmission lines extend along the touch sensing film adjacent to a junction of the lower surface and the side surface and cover the electrode lines.
4. The foldable touch display device of claim 3 , wherein the electrode lines adjacent to the side surface and the upper surface have a line width of less than 0.4 mm between each other.
5. The foldable touch display device of claim 3 , further comprising a protective layer disposed on an outer side of the transmission lines which cover the electrode lines so that the transmission lines are between the electrode lines and the protective layer.
6. The foldable touch display device of claim 1 , wherein the display module further comprises an electronic paper module and a light guide panel disposed under the electronic paper module, wherein the first adhesive layer is between the light guide panel and the touch sensing film.
7. The foldable touch display device of claim 6 , further comprising a second adhesive layer disposed between the electronic paper module and the light guide panel.
8. The foldable touch display device of claim 1 , further comprising a third adhesive layer disposed under the touch sensing film relative to the lower surface of the display module and extending along the touch sensing film and bending along the side surface of the display module to the upper surface.
9. The foldable touch display device of claim 1 , further comprising a cover plate disposed under the touch sensing film relative to the lower surface of the display module.
10. The foldable touch display device of claim 1 , wherein a material of the electrode lines comprises nano silver paste, nano silver mixture, nano silver polymer, or a combination thereof.