Timepiece
US6414910B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1999 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Jul 27, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04G9/0082
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
To provide a colorful timepiece capable of displaying in multiple Dolors at a low power consumption and with a low development cost using a typical monochrome liquid crystal driving IC, a birefringence color liquid crystal display device (17) and a driving module (27) for driving the liquid crystal display device are installed inside a case (25) with a cover glass. A time display portion displaying normal time in a single color and a mark display portion displaying in a plurality of colors, are provided in a display portion of the liquid crystal display device (17). A liquid crystal driving circuit for driving the liquid crystal display device (17) to supply a scanning signal to scanning electrodes for the time display portion and a data signal to data electrodes for the mark display portion, is provided in the driving module (27).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.