Type of radial circuit used as LCD drivers
US8040333B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2007 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Aug 17, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention discloses a type of radial circuit for use in driving LCD monitors. The radial circuit includes an odd-even column data generator. The odd-even column data generator receives data from a modulation counter and divides the data into two groups of data having opposite levels: odd column modulation data and even column modulation data. The odd-even column data generator then sends the two sets of data to a comparator comparing the display data and modulation data of the LCD. The comparator is used to control the odd and even columns of the LCD. This utility model divides all the columns in the same row into odd and even columns. An opposite driver voltage waveform is output from between the odd and even columns of the neighboring columns. While the odd columns discharge, the even column recharges. This type of simultaneous discharge and recharge process creates just the right mutual electric charge compensation; and it results in minimizing the electric charge dissipation which saves energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.