Tactile display device and touch panel apparatus with tactile display function using electrorheological fluid
US7589714B2 · kind B2 · utility
78Cited by
5References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2005 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Jan 15, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04809
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Conductivity of a photoconductive layer changes in accordance with a display pattern made of black and white, which is displayed on a display device of a touch panel apparatus with tactile display function. With this change of the conductivity, viscosity of an electrorheological fluid layer changes in accordance with this display pattern. This change of the viscosity is presented to an operator, as tactile information corresponding to the display pattern displayed as the visual information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.