A Capacitive Pen and Capacitive Touch Control for Precise Input

Abstract

A capacitance pen used for accurate input comprises a transparent conductive disk, a flexible elastic protection ring, a connecting piece and a conductive or partially conductive pen body. The connecting piece is connected between the transparent conductive disk and the pen body and enables the pen body and the transparent conductive disk to conduct relative movement. The flexible elastic protection ring is used for fixing the transparent conductive disk and enabling the transparent conductive disk to conduct parallel or similarly parallel angular movement with a certain distance kept between the transparent conductive disk and a capacitance touch screen. A user can easily observe the accurate movement direction of the disk through the transparent conductive disk, thereby accurately controlling the pen body to move in the needed direction. In another embodiment, a capacitance pen comprises a conductive pen body and a connecting piece or a universal head which are connected, wherein the front end of the conductive pen body is a miniature spherical connecting rod and a semispherical cavity of the connecting piece or the universal head can allow the spherical connecting rod to move inside itself. The pen body drives a transparent conductive disk to conduct inputting from different angles through the connecting piece. The capacitance pen used for accurate input can greatly improve the input convenience and the input accuracy.

Description

technical field [0001] The invention relates to a capacitive touch pen, in particular to a capacitive touch pen which can be used for precise input. Background technique [0002] In recent years, with the development of touch technology, mobile devices with capacitive touch screen interfaces have grown rapidly. For mobile phones, tablet computers, GPS, notebooks and other devices, many users have precise input requirements. The capacitive touch screen is designed for finger input, and it usually requires that the surface area of ​​the finger touching the capacitive touch screen is at least a circular surface with a diameter of 6mm. That is to say, the minimum finger contact area for exciting the capacitive touch screen needs to be 3.14*3mm*3mm=28.26mm2. However, different capacitive touch screen manufacturers will have slight differences in setting the minimum sensing area. Ordinary conductive objects cannot be used for capacitive pen input because there is not enough con...

AI Technical Summary

Problems solved by technology

Ordinary conductive objects cannot be used for capacitive pen input because there is not enough contact area, such as the tip of a key, whose area is far smaller than the minimum contact area for exciting a capacitive touch screen; and objects with sufficient contact area (such as fingers, capacitive pens, etc.) ) will block the capacitive touch screen of the corresponding area when touching the capacitive touch screen (the contact diameter between the pen head and the capacitive touch screen is usually 6-9mm), which will affect the line of sight and cannot achieve precise operation; whether it is a finger or a capacitive pen, under different angles Unable to ensure enough contact area will lead to loss of control of the capacitive touch screen, which reduces the continuity of operation; in addition, it needs to be pressed hard, otherwise there will not be enough contact area for the capacitive touch screen to sense the touch input action, and long-term use will lead to fatigue

Inputting with fingers will also cause sweat stains on the fingers to easily contaminate the capacitive touch screen and leave fingerprints

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