Touch display device and driving method thereof
First Claim
1. A touch display device, comprising:
- a first substrate;
a second substrate;
a display medium layer, disposed between the first substrate and the second substrate;
a pixel array structure, disposed between the second substrate and the display medium layer, and comprising a plurality of pixel electrodes and a multi-function electrode layer overlapping with the pixel electrodes and being deposed over the second substrate; and
a pressure sensing electrode layer, disposed over the first substrate to be opposite to and parallel to the multi-function electrode layer, and a changeable gap being formed between the pressure sensing electrode layer and the multi-function electrode layer;
wherein the multi-function electrode layer comprises a plurality of independent multi-function electrodes each being capable of being independently charged or discharged such that the multi-function electrode layer has capability of performing self-capacitive touch sensing and pressure touch sensing; and
wherein signals of the pressure sensing electrode layer and the multi-function electrode layer are allowed to be synchronized.
1 Assignment
0 Petitions
Accused Products
Abstract
A touch display device including a first substrate, a second substrate, a display medium layer, a pixel array structure and a pressure sensing electrode layer is provided. The display medium layer is disposed between the first substrate and the second substrate. The pixel array structure is disposed between the second substrate and the display medium layer and includes a plurality of pixel electrodes and a multi-function electrode layer overlapping the pixel electrodes. The pressure sensing electrode layer is parallel to the multi-function electrode layer and a changeable gap is formed between the pressure sensing electrode layer and the multi-function electrode layer. The touch display device capable of 3D touch is provided.
-
Citations
20 Claims
-
1. A touch display device, comprising:
-
a first substrate; a second substrate; a display medium layer, disposed between the first substrate and the second substrate; a pixel array structure, disposed between the second substrate and the display medium layer, and comprising a plurality of pixel electrodes and a multi-function electrode layer overlapping with the pixel electrodes and being deposed over the second substrate; and a pressure sensing electrode layer, disposed over the first substrate to be opposite to and parallel to the multi-function electrode layer, and a changeable gap being formed between the pressure sensing electrode layer and the multi-function electrode layer; wherein the multi-function electrode layer comprises a plurality of independent multi-function electrodes each being capable of being independently charged or discharged such that the multi-function electrode layer has capability of performing self-capacitive touch sensing and pressure touch sensing; and wherein signals of the pressure sensing electrode layer and the multi-function electrode layer are allowed to be synchronized. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A touch display device comprising:
-
a first substrate; a second substrate; a display medium layer disposed between the first substrate and the second substrate; a pixel array structure being disposed between the second substrate and the display medium layer, and comprising a plurality of pixel electrodes and a multi-function electrode layer overlapping with the pixel electrodes; a pressure sensing electrode layer disposed between the first substrate and the display medium layer to be parallel to the multi-function electrode layer, and a changeable gap being formed between the pressure sensing electrode layer and the multi-function electrode layer; and a black matrix layer being disposed between the pressure sensing electrode layer and the first substrate, and comprising a plurality of light-shielding strips; wherein the pressure sensing electrode layer comprises a plurality of electrode strips located within an area of the light-shielding strips. - View Dependent Claims (11, 12, 13)
-
-
14. A driving method of a touch display device comprising a first substrate, a second substrate, a display medium layer disposed between the first substrate and the second substrate, a pixel array structure being disposed between the second substrate and the display medium layer and comprising a plurality of pixel electrodes and a multi-function electrode layer overlapping with the pixel electrodes, and a pressure sensing electrode layer disposed to be parallel to the multi-function electrode layer with a changeable gap being formed between the pressure sensing electrode layer and the multi-function electrode layer, comprising:
-
implementing a display mode; implementing a first touch mode to perform touch sensing through the multi-function electrode layer, and synchronizing signals of the pressure sensing electrode layer and the multi-function electrode layer; and implementing a second touch mode by inputting an operating potential to the pressure sensing electrode layer, and performing touch sensing through the multi-function electrode layer. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification