Method for manufacturing touch screen linearization pattern
US6673390B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2001 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Dec 6, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04113
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for manufacturing a touch screen linearization pattern which is necessary for a five wire resistive type or current sensing type touch screen, and directly affects the accuracy, production price, and border area size of the touch screen, includes the steps of printing a linearization pattern on the border area of a conductive glass surface with a selected ink. The ink is made by blending highly conductive silver powder between about 59% to 62% in weight and carbon powder between about 14% to 16% in a contact agent solvent between about 24% to 25% in weight. The touch screen thus formed has a resistance value ratio of about ten between the square surface of the glass layer and the two ends of the linearization pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.