Touch panel and touch display device

Abstract

A touch panel comprises panel glass and a touch sensing module laminated on the back surface of the panel glass, the panel glass comprises a display area and a non-display area located on the outer periphery of the display area, the touch sensing module comprises a first conducting layer and a second conducting layer, and the first conducting layer and the second conducting layer are stacked in a spaced mode in the thickness direction of the panel glass. The first conducting layer comprises a plurality of first conducting strips which extend in the first direction, are arranged at intervals and are insulated from one another, the second conducting layer comprises a plurality of second conducting strips which extend in the second direction, are arranged at intervals and are insulated from one another, and drop shadows, on the plane where the second conducting strips are located, of the first conducting strips intersect with the second conducting strips. A sensing area is formed by the portion, between the boundary of the first conducting layer and the boundary of the second conducting area, of the touch sensing module, the sensing area comprises a visible area right facing the display area and a non-visible area right facing the non-display area, the drop shadow, on the panel glass, of the visible area coincides with the display area, and the drop shadow, on the panel glass, of the non-visible area coincides with the non-display area. Therefore, the user experience function can be achieved.

Description

technical field [0001] The present invention relates to the field of touch technology, in particular to a touch panel and a touch display device including the touch panel. Background technique [0002] Currently, there are more and more electronic devices using touch screens, such as mobile phones, tablet computers, MP4 players, and e-books. A touch screen is an inductive device that can receive input signals such as touch. The touch screen has endowed information interaction with a new look and is a very attractive new information interaction device. The development of touch screen technology has aroused widespread concern in the information media circles at home and abroad, and has become a rising high-tech industry in the optoelectronic industry. However, most of the existing touch screens are plug-in or embedded in the display screen of the electronic device. The sensing area of ​​the touch screen is directly opposite to the display screen, so that the user's touch ope...

AI Technical Summary

Problems solved by technology

The patterning of the ITO conductive layer requires an etching process, and a large amount of ITO materials will be wasted. In addition, indium element is a rare earth metal with very little stock in nature. In recent years, the cost of indium element materials has risen sharply. In terms of material costs In the case where upgrading inevitably produces material waste, it will inevitably lead to an increase in preparation costs

Moreover, if it is necessary to achieve low square resistance, the ITO conductive layer must be thicker, which will not only further increase the preparation cost, but also reduce the transmittance

In addition, the ITO conductive layer is easy to crack, making the performance of the touch screen less stable

Images