Patent · US Expired

Touch panel

US5438168A · kind A · utility

30Cited by
9References
1Claims
0Family size

Assignees

Inventors

Key dates

Filing dateMar 17, 1993
Grant dateAug 1, 1995
Priority date
Expiry dateMar 17, 2013

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F3/045
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A touch panel of the present invention consists of a rectangular resistance member on which a potential gradient formation area is formed, a plurality of thin film active elements constructed in accordance with a side of the potential gradient formation area. Each of the thin film active elements has a couple of potential gradient formation current terminals. One of them is connected to the side of the potential gradient formation area while the other one is connected to the gradient formation current terminal included in another thin film active element at the same side as well as connected to a terminal for an external unit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.