LIQUID CRYSTAL DISPLAY DEVICE, IMAGE DISPLAY DEVICE, ILLUMINATION DEVICE AND EMITTER USED THEREFORE, DRIVING METHOD OF LIQUID CRYSTAL DISPLAY DEVICE, DRIVING METHOD OF ILLUMINATION DEVICE, AND DRIVING METHOD OF EMITTER
US6982686B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2001 |
| Grant date | Jan 3, 2006 |
| Priority date | — |
| Expiry date | Mar 22, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A cold cathode tube for illuminating pixels with light which is in accordance with an output signal has luminance which gradually increases at a rise and gradually decreases at a fall per one frame time. In certain example embodiments, illuminating elements respectively illuminate display elements in such a manner that each illuminating element group respectively illuminates a display element group in a second luminance in a period from Time P to Time (P+tb), and illuminates in a first luminance in a period from the Time (P+tb) to Time (P+f), the second luminance being darker than the first luminance, where tb is a predetermined time, f is one vertical period, and the Time P is a time at which a display element band having an earliest scanning time in the display element group the illuminating element group illuminates is scanned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.