Development of touch panel system by single layer without pattern: Capable large touch panel due to large S/N and simple structure

Abstract

We propose a novel touch panel structure, sensing method, and system which composes a low-cost transparent electrically-conductive thin film with higher Rs than the ITO film by two orders of magnitude. Relatively small number of extraction electrodes is directly attached upon the thin film without any circuit pattern. The proposed panel can realize even the wall tapestry-type touch panel of larger area as well as the smaller size one, and also can play single and multi-touch operations even through gloved fingers. In this paper, we will mainly mention about this packaging technology.