Touch panels and driving control methods thereof, touch display devices

1. A touch panel, comprising:

a plurality of first electrodes, a plurality of second electrodes, and a plurality of third electrodes;

wherein the plurality of second electrodes comprise of a first portion and a second portion;

wherein the plurality of first electrodes, the plurality of second electrodes, and the plurality of third electrodes are insulated from each other, the plurality of first electrodes and the first portion of the plurality of second electrodes are crosswise arranged to form a touch film layer, and the second portion of the plurality of second electrodes and the plurality of third electrodes are crosswise arranged to form a fingerprint identification film layer;

wherein the plurality of first electrodes are touch driving electrodes and the plurality of third electrodes are fingerprint driving electrodes, and wherein the second portion of the plurality of second electrodes are common inductive electrodes of the touch film layer and the fingerprint identification film layer;

the touch panel further comprising: a display film layer provided with a plurality of illuminating sub-pixels arranged in an array; wherein an orthographic projection of an electrode pattern of the fingerprint identification layer on the touch film layer partly overlaps with an orthographic projection of the illuminating sub-pixels of the display film layer on the touch film layer;

wherein the plurality of second electrodes are arranged between a film layer in which the plurality of first electrodes are located and a film layer in which the plurality of third electrodes are located;

wherein the fingerprint identification film layer is correspondingly arranged in a preset target area of the touch panel;

wherein the preset target area is a partial area of the touch panel;

wherein the first portion of the plurality of second electrodes arranged between the film layer, in which the plurality of first electrodes are located, and the film layer, in which the plurality of third electrodes are located, have a hollow pattern in the preset target area;

wherein the first portion of the plurality of second electrodes arranged and the second portion of the plurality of second electrodes are separate and distinct from each other;

wherein each electrode in the first portion of the plurality of second electrodes are connected to a different touch pin;

wherein each electrode in the second portion of the plurality of second electrodes are connected to the same touch pin but different fingerprint identification pins; and

wherein a width of the second portion of the plurality of second electrodes are substantially equivalent to a width of an electrode in the first portion of the plurality of second electrodes.

2. The touch panel according to claim 1 , wherein a line width of each electrode in the second portion of the plurality of second electrodes corresponding to the preset target area are smaller than a first threshold, and a central spacing of adjacent electrodes in the second portion of the plurality of second electrodes corresponding to the preset target area are less than a second threshold.

3. The touch panel according to claim 2 , wherein the line width of the each electrode in the second portion of the plurality of second electrodes corresponding to the preset target area ranges from 3 pm to 5 pm, and the central spacing of adjacent electrodes in the second portion of the plurality of second electrodes corresponding to the preset target area ranges from 8 pm to 12 pm.

4. The touch panel according to claim 1 , wherein an orthographic projection of the second electrode is located at a gap of the illuminating sub-pixels.

5. The touch panel according to claim 1 , wherein a second electrode is arranged at a plurality of gaps, the second electrodes having hollow defined at positions corresponding to illuminating the sub-pixels between the adjacent gaps.

6. The touch panel according to claim 1 , wherein the touch pin is either a touch inductive pin or a touch driving pin.

7. A method of driving and controlling a touch panel, the touch panel comprising:

a plurality of first electrodes, a plurality of second electrodes, and a plurality of third electrodes;

wherein the plurality of second electrodes comprise of a first portion and a second portion;

wherein the plurality of first electrodes, the plurality of second electrodes and the plurality of third electrodes are insulated from each other, the plurality of first electrodes and the first portion of the plurality of second electrodes are crosswise arranged to form a touch film layer, and the second portion of the plurality of second electrodes and the plurality of third electrodes are crosswise arranged to form a fingerprint identification film layer;

wherein the plurality of first electrodes are touch driving electrodes and the plurality of third electrodes are fingerprint driving electrodes, and wherein the second portion of the plurality of second electrodes are common inductive electrodes of the touch film layer and the fingerprint identification film layer;

the touch panel further comprising: a display film layer provided with a plurality of illuminating sub-pixels arranged in an array; wherein an orthographic projection of an electrode pattern of the fingerprint identification layer on the touch film layer partly overlaps with an orthographic projection of the illuminating sub-pixels of the display film layer on the touch film layer;

wherein the plurality of second electrodes are arranged between a film layer in which the plurality of first electrodes are located and a film layer in which the plurality of third electrodes are located;

wherein the fingerprint identification film layer is correspondingly arranged in a preset target area of the touch panel;

wherein the preset target area is a partial area of the touch panel;

wherein the first portion of the plurality of second electrodes arranged between the film layer, in which the plurality of first electrodes are located, and the film layer, in which the plurality of third electrodes are located, have a hollow pattern in the preset target area;

wherein the first portion of the plurality of second electrodes arranged and the second portion of the plurality of second electrodes are separate and distinct from each other;

wherein each electrode in the first portion of the plurality of second electrodes are connected to a different touch pin;

wherein each electrode in the second portion of the plurality of second electrodes are connected to the same touch pin but different fingerprint identification pins; and

wherein a width of the second portion of the plurality of second electrodes are substantially equivalent to a width of an electrode in the first portion of the plurality of second electrodes;

the method comprising:

in a touch mode, the plurality of first electrodes being loaded with first driving signals sequentially, the plurality of second electrodes being loaded with first inductive signals simultaneously; and

when switching to a fingerprint identification mode, the plurality of third electrodes being loaded with second driving signals sequentially, and the second portion of the plurality of second electrodes being loaded with second inductive signals simultaneously.

8. A touch display device, comprising a touch panel, the touch panel including:

a plurality of first electrodes, a plurality of second electrodes, and a plurality of third electrodes;

wherein the plurality of second electrodes comprise of a first portion and a second portion;

wherein the plurality of first electrodes, the plurality of second electrodes and the plurality of third electrodes are insulated from each other, the plurality of first electrodes and the first portion of the plurality of second electrodes are crosswise arranged to form a touch film layer, and the second portion of the plurality of second electrodes and the plurality of third electrodes are crosswise arranged to form a fingerprint identification film layer;

wherein the plurality of first electrodes are touch driving electrodes and the plurality of third electrodes are fingerprint driving electrodes, and wherein the second portion of the plurality of second electrodes are common inductive electrodes of the touch film layer and the fingerprint identification film layer;

the touch panel further comprising: a display film layer provided with a plurality of illuminating sub-pixels arranged in an array; wherein an orthographic projection of an electrode pattern of the fingerprint identification layer on the touch film layer partly overlaps with an orthographic projection of the illuminating sub-pixels of the display film layer on the touch film layer;

wherein the plurality of second electrodes are arranged between a film layer in which the plurality of first electrodes are located and a film layer in which the plurality of third electrodes are located;

wherein the fingerprint identification film layer is correspondingly arranged in a preset target area of the touch panel;

wherein the preset target area is a partial area of the touch panel;

wherein the first portion of the plurality of second electrodes arranged between the film layer, in which the plurality of first electrodes are located, and the film layer, in which the plurality of third electrodes are located, have a hollow pattern in the preset target area;

wherein the first portion of the plurality of second electrodes arranged and the second portion of the plurality of second electrodes are separate and distinct from each other;

wherein each electrode in the first portion of the plurality of second electrodes are connected to a different touch pin;

wherein each electrode in the second portion of the plurality of second electrodes are connected to the same touch pin but different fingerprint identification pins; and

wherein a width of the second portion of the plurality of second electrodes are substantially equivalent to a width of an electrode in the first portion of the plurality of second electrodes.

9. The touch display device according to claim 8 , wherein the touch pin is either a touch inductive pin or a touch driving pin.