Display apparatus and power supply device for displaying
US7078864B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2004 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | May 22, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A power supply device for displaying includes a set register for setting an amplitude and voltage level of a driving voltage for a common electrode and an amplitude and voltage level of a non-selecting period voltage for a scan line, an amplitude reference generating circuit for generating an amplitude reference voltage for the driving voltage of the common electrode and for the non-selecting period voltage of the scan line according to a set value, a VcomH reference generating circuit and a VcomL generating circuit for A.C. driving the common electrode with an amplitude and voltage level determined by the amplitude reference voltage and set value, a VgoffH generating circuit and a VgoffL reference generating circuit for generating the non-selecting period voltage of the scan line with an amplitude and voltage level determined by the amplitude reference voltage and set value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.