Digitizer screen and method of making
First Claim
1. A process for fabricating a screen for use in an electronic digitizer, comprising the following steps:
- (a) selecting a sheet of rigid material;
(b) selecting a sheet of conductive coated plastic material;
(c) perforating said sheet of plastic material to provide a plurality of apertures in a matrix pattern; and
(d) laminating said perforated sheet of plastic material to said sheet of rigid material.
1 Assignment
0 Petitions
Accused Products
Abstract
A digitizer screen and method of making. A coated conductive plastic film is perforated and is used in conjunction with a glass or other panel to provide a screen which may be used in an electronic digitizer for converting the position and movement of a stylus or other device on the screen to electrical signals representative of such positioning and movement. The perforated coated conductive plastic film may be laminated to the glass panel to form an integrated structure which does not require the use of masking and etching or similar processes to produce a desired apertured matrix pattern in the plastic film. Various arrangements of the plastic film are disclosed which facilitate the connection of the apertured portion of the plastic film to associated electronic components.
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Citations
37 Claims
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1. A process for fabricating a screen for use in an electronic digitizer, comprising the following steps:
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(a) selecting a sheet of rigid material; (b) selecting a sheet of conductive coated plastic material; (c) perforating said sheet of plastic material to provide a plurality of apertures in a matrix pattern; and (d) laminating said perforated sheet of plastic material to said sheet of rigid material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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- 10. As an article of manufacture, a conductive coated plastic film having a plurality of spaced punched-out apertures therein laminated to a rigid material which is of similar shape and size to the conductive coated plastic film.
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20. A screen for an electronic digitizer, comprising:
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a rigid element on which a stylus or similar device may be moved to operate the digitizer; and a sheet of conductive coated plastic film having a plurality of apertures in a matrix arrangement therein laminated to the rigid element and having a portion extending beyond the element, on which portion electronic components are mounted. - View Dependent Claims (21, 22, 23, 24)
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25. A screen for an electronic digitizer, comprising:
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a rigid element on which a stylus or similar device may be moved to operate the digitizer; and a sheet of conductive coated plastic film having a plurality of apertures in a matrix arrangement therein laminated to the rigid element and having a portion extending beyond the element and configured as a long tab having conductive lines positioned thereon to form a connector. - View Dependent Claims (26, 27, 28)
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29. A digitizer comprising:
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a housing for the digitizer; a rigid element mounted in the housing and having an outer surface on which a stylus or similar device may be moved to operate the digitizer; a sheet of conductive coated plastic film having a plurality of apertures in a matrix arrangement therein positioned adjacent to the rigid element in operative relation thereto; means retaining said plastic film in operative relation to said rigid element; and means for determining the position of the stylus with respect to the rigid element by measuring electrical values in two dimensions across said plastic film. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37)
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Specification