Coordinate data input device

Details Coordinate data input device Coordinate data input device

1997-04-29

1999-07-20

Shankar, Vijay

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

345174, 178 1801, 178 1803, 178 1806, G08C 2100, G09G 500

Patent

active

059261714

ABSTRACT:
A coordinate data input device comprises: a sensing board fabricated by forming a plurality of parallel first electrodes on the front surface of a film and forming a plurality of parallel second electrodes perpendicularly to the first electrodes on the back surface of the film, and capable of providing a current corresponding to an electrostatic capacitance between the respective groups of the first and the second electrodes; a resist layer of a thickness equal to that of the first electrodes, formed in regions in the front surface of the film in which the first electrodes are not formed; and a protective sheet adhesively bonded to the respective surfaces of the filling layer and the first electrodes.

REFERENCES:
patent: 4672153 (1987-06-01), Kikuchi
patent: 4958148 (1990-09-01), Olson
patent: 4963417 (1990-10-01), Taniguchi
patent: 5218351 (1993-06-01), Hashikawa
patent: 5305017 (1994-04-01), Gerpheide
patent: 5386219 (1995-01-01), Greanias

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