Touch panel

Details Touch panel Touch panel

1993-03-17

1995-08-01

Chin, Stephen

Telegraphy

Systems

Position coordinate determination for writing

345174, G08C 2100

Patent

active

054381681

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.

REFERENCES:
patent: 3449516 (1969-06-01), Cameron et al.
patent: 3699439 (1972-10-01), Turner
patent: 4177354 (1979-12-01), Mathews
patent: 4198539 (1980-04-01), Pepper, Jr.
patent: 4442317 (1984-04-01), Jandrell
patent: 4570149 (1986-02-01), Thornburg et al.
patent: 4694342 (1987-09-01), Ito
patent: 4752655 (1988-06-01), Tajiri et al.
patent: 5266750 (1993-11-01), Yatsuzuka

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