Method of detection of the contacting position in touch panel sensor
US4897511A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1988 |
| Grant date | Jan 30, 1990 |
| Priority date | — |
| Expiry date | Jun 16, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/045
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a method of detecting a contacting position using a touch panel, a pair of resistance layers formed on two substrates are opposed with a gap. At least one conduction member is provided on one edge of one of the resistance layers and another conduction member is provided on one edge of another resistance layer which extends in a direction perpendicular to the edge of said one of the resistance layer. A constant current source is connected to one conduction member so that when the resistance layers contact at a contacting position, a constant current flows from the conduction member of one of the resistance layers to the conduction member of said another resistance layer through the contacting point. Thus, the coordinate position of the contacting point can be detected by the voltage drops on the respective resistance layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.