Image display apparatus and image display method
US8134532B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2008 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Oct 30, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image display apparatus includes an image displaying unit that includes a light source unit and a light modulation device, a histogram generating unit, a light source luminance calculator, a function storing unit, a first evaluation value calculator, a second evaluation value calculator, a third evaluation value calculator, a function acquiring unit and a control unit. The function acquiring unit acquires a plurality of the third evaluation values by repeating processing by the first to third evaluation value calculators with modification to a level conversion function and acquires a level conversion function that has a smallest third evaluation. The control unit supplies a signal of a converted video resulting from conversion of the image with the acquired level conversion function to the light modulation device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.