Premium
24.3L: Late‐News Paper : In‐Cell Capacitance Touch‐Panel with Improved Sensitivity
Author(s) -
Brown Chris,
Kida Kazutoshi,
Yamagishi Shinji,
Kato Hiromi
Publication year - 2010
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3500453
Subject(s) - sensitivity (control systems) , capacitive sensing , capacitance , capacitor , pixel , materials science , optoelectronics , electrical engineering , electronic engineering , computer science , engineering , artificial intelligence , physics , voltage , electrode , quantum mechanics
We present a novel pixel circuit for an in‐cell capacitive type force‐sensitive touch panel. The TFT based capacitance sensor system comprises an active pixel sensor circuit with novel sensing capacitor structure and in‐pixel amplification to achieve a high sensitivity. The observed 8.5x increase in sensitivity over standard methods provides a practical solution to obtain a robust, mechanically compact and low‐cost force sensitive multi‐touch panel.