Liquid crystal display apparatus
US7038647B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2003 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Jan 9, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A liquid crystal display apparatus includes an applied gradation value acquiring section for receiving gradation data of a frame to be displayed, gradation data of a frame to be outputted, gradation data of the current frame supplied from a frame memory and measured data from a temperature sensor. An interpolation operation is then carried out in reference to look-up tables stored in a look-up table memory so as to calculate a target applied gradation data required for gradation display. The section sets for each LUT (a) a coordinate system in which a lattice point is represented by a combination of the gradation data of the current frame and the gradation data of the target frame and (b) a local coordinate system having lattice points corresponding to the target gradation data in the coordinate system; carries out interpolation operation by use of the local coordinate system, and carries out further interpolation operation based on the interpolated value (table interpolated value), in accordance with the measured data so as to calculate the target applied gradation data. The adoption of the interpolation by use of the local coordinate system enables the finding of the target appli…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.