Luminance control device and display device comprising the same
US10062324B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2016 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Nov 22, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device is disclosed in which a luminance control device includes a temperature sensor that detects a temperature of a display device; an average picture level part that calculates an average picture level, which defines an average brightness of an image input into the display device; and a luminance control part that generates a temperature-dependent peak luminance, which varies with temperature and average picture level, based on a top gain curve defining how a maximum luminance decreases as the temperature of the display device rises and a bottom gain curve defining how a minimum luminance decreases as the temperature of the display device rises, wherein the luminance control part fixes the temperature-dependent peak luminance at a specific luminance level, regardless of changes in average picture level, at a specific temperature in a high-temperature range which is higher than a room-temperature range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.