A Study on a Display Size of a Mobile-Multimedia Communication Terminal

Abstract

NTT DoCoMo, Inc. started an introductory service of the next generation mobile communication system, IMT-2000 from May, 2001 in Japan. Such a new service provides the image communication capability in addition with voice and data communication with a transmission rate of 384 kbit/s at maximum. This study aims to clarify a display size of a mobile-multimedia communication terminal from a viewpoint of user satisfaction. because a display size of such a terminal is restricted. We have carried out subjective evaluations on the minimum display sizes for moving images and the minimum sizes of various characters superimposed. Based on these evaluations, design guidance of the pictures is discussed.