Apparatus and method for increasing accuracy of touch sensor
US7148881B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2002 |
| Grant date | Dec 12, 2006 |
| Priority date | — |
| Expiry date | Jul 23, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/045
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for increasing the sensing accuracy of a touch sensor comprises a transparent or translucent substrate; a conductive film coated on the upper surface of the substrate; a plurality of resistor elements printed in at least one or more than one row, wherein adjacent ends of individual resistor elements are joined at the junctions at or near the four corners by wires, and wherein first gaps are formed between each independent row of resistor elements; a plurality of insulator elements formed discontinuously formed by removing a part of the conductive film near the inner side of the resistor elements on the surface thereof, the removed portions thus forming the insulator elements which are arranged; in at least more than one row, on the inner side of the resistor elements; and a plurality of second gaps formed between each row of the plurality of insulator elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.