Pen input liquid crystal display capable of displaying high-contrast images in the absence of a pen input
US5835076A · kind A · utility
3Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1995 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | Oct 18, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/3692
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A pen input liquid crystal display has row electrodes, column electrodes orthogonal to the row electrodes, and a liquid crystal layer interposed between the row and column electrodes. A pen input detecting signal is applied to one of the column electrodes, and display signals to the other column electrodes. The column electrode that receives the pen input detecting signal is sequentially shifted among the column electrodes, to simultaneously carry out a pen input scanning operation and an image displaying operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.