IPS IN-CELL TOUCH DISPLAY PANEL AND MANUFACTURING METHOD THEREOF

摘要

The present invention provides an IPS in-cell touch display panel and a manufacturing method thereof. The IPS in-cell touch display panel includes insulating photoresist blocks (6) arranged at intersections between touch transmission electrodes (4) and touch receiving electrodes (5) for insulation. The method applies a grey-tone mask and etching operation to form touch transmission electrodes (4) and preserves portions of an organic photoresist that correspond to intersections in perpendicularity between the touch transmission electrodes (4) and touch receiving electrodes (5) to form insulating photoresist blocks (6) to allow insulation to be achieved between the touch transmission electrodes (4) and the touch receiving electrodes (5) with the insulating photoresist blocks (6) so that coating and masking and etching operations specifically for making an insulation layer can be eliminated to thereby simplify the manufacturing operation of a touch display panel, reduce the manufacturing cost, and increase the manufacturing efficiency; and in addition, the touch transmission electrodes (4) and the touch receiving electrodes (5) provide an effect of electromagnetic shielding to capacitance of the liquid crystal layer so that there is no need to specifically form a protection electrode.

主权项

1. An in-plane switching (IPS) in-cell touch display panel, comprising a thin-film transistor (TFT) array substrate, a color filter (CF) substrate opposite to the TFT array substrate, a liquid crystal layer interposed between the TFT array substrate and the CF substrate, a plurality of touch transmission electrodes parallel to each other and arranged on a surface of the CF substrate that is adjacent to the liquid crystal layer, and a plurality of touch receiving electrodes parallel to each other and perpendicularly intersecting the touch transmission electrodes in space, insulation being achieved by a plurality of insulating photoresist blocks arranged at locations respectively corresponding to the intersections of the touch transmission electrodes and the touch receiving electrodes to separate the two from each other;
the CF substrate comprising a backing plate, the plurality of touch transmission electrodes being arranged on a surface of the backing plate that is adjacent to the liquid crystal layer, the plurality of touch receiving electrodes being arranged to perpendicularly intersect the touch transmission electrodes in space through the insulating photoresist blocks therebetween.