Touch sensor and touch display panel

Abstract

The invention provides a touch sensor and a touch display panel. A plurality of first electrodes and a plurality of second electrodes independently extend along a first direction and a second direction and are in cross insulation; a first lead connected with each first electrode is used for electrically connecting each first electrode with a bonding pad pin; a second lead connected with each second electrode is used for electrically connecting each second electrode with the bonding pad pin; the first electrodes and the first leads are independently positioned on a first electric conduction layer and a second electric conduction layer and are electrically connected through an insulation layer between the first electric conduction layer and the second electric conduction layer; and the firstelectrodes and the first leads are arranged on different layers, so that the first leads do not need to be led out of two ends of the first electrodes, the first leads and the second leads are both lead out of one side, which is near the bonding pad pin, of a touch detection area, and the first leads and the second leads are not positioned in a surrounding area on one side of the bonding pad pinso as to reduce the border of the touch sensor.

Description

technical field [0001] The invention relates to the field of touch screens, in particular to a touch sensor and a touch display panel. Background technique [0002] As an input medium, the touch screen is currently the simplest, most convenient and natural way of human-computer interaction. Integrating a touch function on a display device has become a research and development hotspot of more and more flat panel display manufacturers. [0003] Projected capacitive touch screen has become the most common type of touch screen because of its multi-finger touch function. According to the detection principle, capacitive touch screen can be divided into self-capacitance screen and mutual capacitance screen. The vertical electrode array, according to the change of capacitance before and after the touch, respectively determines the horizontal coordinates and the vertical coordinates, and then combines them into plane touch coordinates. For a mutual capacitance screen, capacitance w...

AI Technical Summary

Problems solved by technology

Whether it is a self-capacitance screen or a mutual-capacitance screen, the horizontal and vertical cross electrodes need to be connected to the integrated circuit terminal through the electrode leads respectively. Since the horizontal electrode array leads from both ends and is routed through the left and right sides of the horizontal electrode, the left and right sides of the touch screen are increased. The bezels at both ends are not conducive to the design of narrow bezels

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