VIDEO TERMINAL AND METHOD FOR FORMING DISPLAY IMAGES

摘要

Disclosed is a video terminal and a method for forming display images with which power consumption can be reduced while maintaining a video display quality level that can be discerned by users, even if a variety of images are displayed in a superimposed manner on a video and the method of expressing the images becomes complex. In a video output device (100), an update rate adjustment unit (104) determines the update rate of a video on the basis of the "exposed area of the video". Specifically, the update rate adjustment unit (104) determines the update rate on the basis of: an update rate adjustment table that contains corresponding video status pattern candidates and update rate target values; and the video status patterns that are actually used by a display image formation unit (103). The video status pattern candidates are combinations of the "exposed area of the video", the presence/absence of special processes, and the types of special processes.