Pressure Sensitive Stylus and Algorithm for Touchscreen Panel

Author

Chih-Lung Lin ; Chia-Sheng Li ; Yi-Ming Chang ; Tsung-Chih Lin ; Jiann-Fuh Chen ; U-Chen Lin

Volume

9

Issue

1

fYear

2013

fDate

Jan. 2013

Firstpage

17

Lastpage

23

Abstract

This work presents a new simple passive 3D stylus and its associated stroke reconstruction algorithm for capacitive touch panels that detects the x,y -directional position and z -directional strength without the help of a pressure sensor. The proposed algorithm can successfully detect touch information while eliminating noise. Moreover, unintended touch will be recognized and its effects are eliminated while the desired signal will be accessed by the touch system to enhance the handwriting experience. The results of experiments on a touch panel system were analyzed, demonstrating the effectiveness of the proposed stylus and its stroke reconstruction algorithm.

Keywords

pressure sensors; touch sensitive screens; associated stroke reconstruction algorithm; capacitive touchscreen panel system; handwriting experience; passive 3D stylus; pressure sensitive stylus; pressure sensor; stroke reconstruction algorithm; touch information detection; unintended touch; Capacitance; Indium tin oxide; Kalman filters; Reconstruction algorithms; Sensors; Touch screens; Capacitive-type panel (CTP); pressure sensing stylus; stroke reconstruction algorithm;

fLanguage

English

Journal_Title

Display Technology, Journal of

Publisher

ieee

ISSN

1551-319X

Type

jour

DOI

10.1109/JDT.2012.2220524

Filename

6353596