Capacitive touch screen writing pen and method for positioning touch spot position of capacitive touch panel writing pen

Abstract

The invention discloses a capacitive touch screen writing pen and a method for positioning a touch spot position of the capacitive touch screen writing pen. The capacitive touch screen writing pen comprises a penholder and pen end, wherein the pen end is provided with a trapezoidal capacitive coupling part which can form a coupling capacitor with a touch screen and is made of an electric conducting material; and the tip of the pen end is positioned in front of the top edge of the trapezoidal capacitive coupling part. The method for positioning the touch spot position of the capacitive touch screen writing pen comprises the following steps of: determining the positions of two trapezoidal bevel edges corresponding to a capacitive coupling surface of the pen end through a touch area obtained on the capacitive touch screen; and deflecting the positions of the trapezoidal bevel edges on the touch screen inwards at distances S1 and S2 to obtain a coordinate position of a crossing point of two parallel straight lines, and the coordinate position is the coordinate of a tip touch spot. The methods solve the problem that the touch spot position of the conventional capacitive touch screen writing penis blocked, which is unfavorable for fine operation and causes a problem of low user experience.

Description

technical field [0001] The invention relates to a capacitive touch screen stylus and a method for locating the position of a contact point thereof. Background technique [0002] Due to the support of multi-touch screen technology, capacitive touch screen has become the new darling of touch screen products. More and more devices are switching from resistive screens to capacitive screens. Due to hieroglyphs and traditional habits in eastern countries represented by China, most users are still accustomed to handwriting input; and due to the mechanism of capacitive touch screens, the introduction of stylus encounters great obstacles. Therefore, many writing pens that can be used on capacitive touch screens have been developed. For example, 200710124961.3, 200710179287.9, and 200820161372.2 respectively disclose a stylus for capacitive touch screens. The pen holder, the conductive pen end and the pen holder and the touch screen form a coupling part of a coupling capacitor. Whe...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the limitation of the shape of the conductive material part of the pen end of the existing capacitive stylus, so that the stylus cannot expose its contact point outside the pen end, nor can it be processed to expose the nib point to the user. Can see technical issues with location

[0009] The purpose of the present invention is to solve the existing technical problem that the contact point of the tip of the capacitive stylus is determined by calculating the center of gravity so that the contact point falls below the tip of the pen, so that the user cannot see the tip of the pen and generates a positioning error of the tip of the pen.

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