A review of sensing technologies for small and large-scale touch panels

Humza Akhtar; Qian Kemao; Ramakrishna Kakarala

doi:10.1117/12.2270631

13 June 2017 A review of sensing technologies for small and large-scale touch panels

Humza Akhtar, Qian Kemao, Ramakrishna Kakarala

Proceedings Volume 10449, Fifth International Conference on Optical and Photonics Engineering; 1044918 (2017) https://doi.org/10.1117/12.2270631
Event: Fifth International Conference on Optical and Photonics Engineering, 2017, Singapore, Singapore

Abstract

A touch panel is an input device for human computer interaction. It consists of a network of sensors, a sampling circuit and a micro controller for detecting and locating a touch input. Touch input can come from either finger or stylus depending upon the type of touch technology. These touch panels provide an intuitive and collaborative workspace so that people can perform various tasks with the use of their fingers instead of traditional input devices like keyboard and mouse. Touch sensing technology is not new. At the time of this writing, various technologies are available in the market and this paper reviews the most common ones. We review traditional designs and sensing algorithms for touch technology. We also observe that due to its various strengths, capacitive touch will dominate the large-scale touch panel industry in years to come. In the end, we discuss the motivation for doing academic research on large-scale panels.

Citation Download Citation

Humza Akhtar, Qian Kemao, and Ramakrishna Kakarala "A review of sensing technologies for small and large-scale touch panels", Proc. SPIE 10449, Fifth International Conference on Optical and Photonics Engineering, 1044918 (13 June 2017); https://doi.org/10.1117/12.2270631

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available