2-2 Preferred Luminance of LCD Television Screens (1) : Effect of Angular Screen Size, Viewer's Age and Average Luminance Level of a Displayed Image on Preferred Display Luminance

Abstract

Preferred luminance of an LCD television screen was measured by the method of adjustment as a function of the angular screen size, subject's age and average luminance level of a displayed image. The results showed that the preferred luminance of LCD screens for young subjects corresponds to the following formula: logPL=-0.23logSA-0.22logAL+2.9. This is where PL is the preferred luminance (cd/m^2) of LCD television screens, SA is the angular screen size (deg) and AL is the average luminance level (%) of the displayed image.