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最近几年,高清晰度电视(HDTV)日益成为世界各国的热门话题。越来越多的高清晰度电视设备出现在各国的电视设备展览会上,高清晰度电视向实用化的每一步进展都被报刊杂志及时报道。日本在1988年汉城奥运会上采用直播卫星向本国试播高清晰度电视节目。面对日本的挑战,美国、欧洲正在急起直追。看过高清晰度电视试播或表演的人,毫无例外地留下很深的印象,并且相信专家们的预言:这是新一代的电视。我们现在的电视确实有许多不足之处。人们常常埋怨图象不够清晰、图象的细节分辨不出来;你也不能在离荧屏太近的地方看电视,否则就会看到屏幕上的扫描光栅以及像素的光点,同
In recent years, high-definition television (HDTV) has increasingly become a hot topic in all countries in the world. More and more high-definition television equipment appeared in various countries’ television equipment exhibitions, and the progress of high-definition television at every step of practical application has been reported by newspapers and magazines in time. Japan used direct-broadcast satellites to pilot high-definition television programs in its home country at the 1988 Seoul Olympics. The face of Japan’s challenge, the United States, Europe is catching on. Those who have seen HDTV auditions or shows impress without exception, and believe the prophecies of experts: This is a new generation of television. Our current TV does have many shortcomings. People often blame the image is not clear enough, the details of the image can not tell; you can not watch the TV too close to the screen, or you will see the screen scanning raster and pixel light,