THE OPTIMAL GLASS TRANSMISSION COEFFICIENT AS A FUNCTION OF THE LEVELOF DIFFUSE AMBIENT ILLUMINATION

This paper describes how, in a consumer television application, the gl ass transmission coefficient of a CRT (or plasma) display should vary as a function of the illumination level (measured on the display) in o rder to obtain optimal perceived quality. The study was concerned with the perceptual evaluation of five identical television sets, but with different glass transmission coefficients, on quality and six quality -related perceptual attributes. The results show how the optimal trans mission coefficient depends on the diffuse ambient illumination. and h ow the overall quality depends on the individual quality-related attri butes. (C) 1997 Elsevier Science B.V.