Display apparatus and display apparatus drive method
US7265741B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2003 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Apr 6, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/482
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An EPG extraction portion extracts EPG information; a program type decision portion decides the type of broadcast program using the extracted EPG information, and outputs a ratio modification signal to change the ratio of the image display interval to the black display interval according to the program type; a driving pulse generation portion generates a gate driver control signal which changes the write timing of a frequency-doubled image signal and frequency-doubled black display signal in one field interval, according to the ratio modification signal; and, a gate driver changes the write timing of the frequency-doubled image signal and frequency-doubled black display signal according to the gate driver control signal, to change the ratio of the image display interval to the black display interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.