Mutual capacitive touch panel

Abstract

The invention discloses a mutual capacitive touch panel, which includes a first electrode layer and a second electrode layer. The first electrode layer includes a plurality of first electrode groups and a plurality of second electrode groups arranged in an array, the first electrode groups in the same row are electrically connected to form the first electrodes in series, and the second electrode groups in the same row are electrically connected Sexually connected to form the second electrode in series. The second electrode layer includes a plurality of electrode strip groups insulated from each other, which are arranged in sequence along the row direction of the array, wherein each electrode strip group extends along the column direction of the array and overlaps two adjacent columns in the vertical projection direction. electrode groups, and two adjacent electrode strip groups overlap the same row of electrode groups in the vertical projection direction.

Description

technical field [0001] The invention relates to a mutual capacitive touch panel, in particular to a mutual capacitive touch panel with double electrode layers. Background technique [0002] With the rapid development of science and technology, touch display devices composed of displays and touch panels can realize touch and display functions at the same time, and have the characteristics of human-computer interaction, and have been widely used in smart phones (smart phones), satellites, etc. Navigation system (GPS navigator system), tablet PC (tablet PC) and notebook computer (laptop PC) and other electronic products. Among them, the mutual capacitive touch panel has become the mainstream touch technology currently used in the industry due to its advantages of high accuracy, multi-touch, high durability, and high touch resolution. [0003] The mutual capacitive touch technology mainly judges the touch event by detecting the change of coupling capacitance between the static ...

AI Technical Summary

Problems solved by technology

However, under this framework, when the touch object moves linearly along the Y-axis direction, the sensing coordinates sensed by the sensing series will have density.

In other words, when the touch object moves linearly along the X-axis direction at different positions on the Y-axis in an equidistant manner, the distances between the lines sensed by the induction series are not consistent, but the straight lines arranged along the Y-axis direction appear Alternate occurrence of density and density, resulting in inaccurate detection, such as figure 1 shown

Although this problem can be eliminated by algorithms, it takes computing resources and processing time, causing a burden on the processor

Images