Information-processing device
US6597348B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1999 |
| Grant date | Jul 22, 2003 |
| Priority date | — |
| Expiry date | Dec 23, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133622
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An information-processing device which comprises a field sequential display unit and a touch panel, said sequential display unit having a back light to supply three-color light and an image display part which forms an image for one frame by the sequential time-sharing display of three subframes corresponding to said three-color light, and said touch panel having an optical guide plate of transparent material, an optical sensor array whose light receiving surface is opposite to the side of said optical guide plate, a lens sheet whose light emitting surface is opposite to that side of said optical guide plate which is opposite to said side, and an illuminating means to illuminate the plane of incidence of said lens sheet.The information-processing device is superior in resistance to extraneous light, contamination, and mechanical shock and has a touch panel for high-precision display capable of accurately detecting positions and entering information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.