Time controller and liquid crystal display apparatus thereof
US10825415B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2019 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Jan 4, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0673
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A time controller is able to convert and present the LCD display of gray levels within images with a brightness equal to that within the original images. The time controller alternates in operation between first and second modes of gamma correction, each for a specified time duration. In the first correction mode, the time controller corrects the original gray levels in a correction-positive manner and outputs first correction gray levels. In the second correction mode, the time controller corrects the original gray levels in a correction-negative manner, and outputs the second correction gray levels. The first correction gray level is equal to or larger than the second correction gray level, to correspond with original gray levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.