Touch display panel, display device and driving method thereof
View Patent ↗The embodiments of the present invention provide a touch display panel, a display device and a driving method thereof. The touch display panel comprises an array substrate and a counter substrate; the array substrate comprises a first basal substrate and a spacer, the spacer being arranged on a surface of the first basal substrate facing the counter substrate; the spacer comprises a primary spacer and an auxiliary spacer; each auxiliary spacer at least comprises a conductive portion facing the counter substrate; the height of the auxiliary spacer is less than the height of the primary spacer; the counter substrate comprises a second basal substrate and a touch structure, the touch structure is arranged on a surface of the second basal substrate facing the array substrate.
1. A touch display panel, comprising an array substrate and a counter substrate;
wherein the array substrate comprises a first basal substrate and a spacer; the spacer is arranged on a surface of the first basal substrate facing the counter substrate; the spacer comprises a primary spacer and an auxiliary spacer; the first basal substrate comprises a plurality of thin film transistors; the primary spacer and the auxiliary spacer correspond to the plurality of thin film transistors one-to-one; each auxiliary spacer at least comprises a conductive portion facing the counter substrate; the height of the auxiliary spacer is less than the height of the primary spacer;
wherein the counter substrate comprises a second basal substrate and a touch structure, the touch structure arranged on a surface of the second basal substrate facing the array substrate;
and wherein a coupling capacitance is generated between the auxiliary spacer and the touch structure, and a pressure value can be identified based on a variation degree of the coupling capacitance.
2. The touch display panel according to claim 1 , wherein the auxiliary spacer comprises 2˜10 levels of sub-auxiliary spacers; a segment difference is between sub-auxiliary spacers of different levels.
3. The touch display panel according to claim 1 , wherein a material of the spacer is conductive polymer material or elastic polymer material doped with conductive particles.
4. The touch display panel according to claim 1 , wherein the auxiliary spacer comprises an insulating spacer body and a conductive layer arranged on a surface of the spacer body facing the counter substrate.
5. The touch display panel according to claim 4 , wherein the array substrate further comprises a pixel electrode and a common electrode;
the conductive layer is arranged on the same layer with the pixel electrode or the common electrode.
6. The touch display panel according to claim 1 , wherein the array substrate further comprises a color filter layer arranged on the first basal substrate.
7. The touch display panel according to claim 1 , wherein the touch structure comprises a first touch electrode and a second touch electrode, which are crosswise arranged with each other;
wherein the first touch electrode comprises a plurality of first sub-touch electrodes connected with each other directly;
wherein the second touch electrode comprises a plurality of second sub-touch electrodes, adjacent second sub-touch electrodes being connected through a bridge;
wherein the first touch electrode and the second touch electrode are insulated from each other; and
wherein the auxiliary spacer corresponds to the first touch electrode or the second touch electrode.
8. A display device comprising the touch display panel according to claim 1 .
9. The display device according to claim 8 , wherein the auxiliary spacer comprises 2˜10 levels of sub-auxiliary spacers; a segment difference is between sub-auxiliary spacers of different levels.
10. The display device according to claim 8 , wherein a material of the spacer is conductive polymer material or elastic polymer material doped with conductive particles.
11. The display device according to claim 8 , wherein the auxiliary spacer comprises an insulating spacer body and a conductive layer arranged on a surface of the spacer body facing the counter substrate.
12. The display device according to claim 11 , wherein the array substrate further comprises a pixel electrode and a common electrode;
the conductive layer is arranged on the same layer with the pixel electrode or the common electrode.
13. The display device according to claim 8 , wherein the array substrate further comprises a color filter layer arranged on the first basal substrate.
14. The display device according to claim 8 , wherein the touch structure comprises a first touch electrode and a second touch electrode, which are crosswise arranged with each other;
wherein the first touch electrode comprises a plurality of first sub-touch electrodes connected with each other directly;
wherein the second touch electrode comprises a plurality of second sub-touch electrodes, adjacent second sub-touch electrodes being connected through a bridge;
wherein the first touch electrode and the second touch electrode are insulated from each other; and
wherein the auxiliary spacer corresponds to the first touch electrode or the second touch electrode.