Effect of Ambient Light on Displayed Medical Images in Plasma Display Panel Monitor

Abstract

Recently, PDP(Plasma Display Panel) began to be sold as wide field of vision angle, light weight and thin type monitor. There are atill problems at various kinds of points, but is prospective as the monitor of the next generation. I used this as observation system of medical images, and exmained brightness of ambient light that was easy to detect dummy affected part from difference threshold. A device consists of fluorescent lamps of daylight, 21 inches PDP monitor(Fujitsu PSD-2170), and a personal computer(NEC). The subjects observed the images displayed on the monitor. The ambient light was 50, 100, 200, 300 and 400 lx respectively. The method used is constant method. As a result, difference between individuals was recognized by improvement of detectability. It was thought that the effect of these ambient light was more or less.