随着4:3画幅比的传统电视机渐渐退出历史舞台,16:9宽屏电视的时代已经来临。纵观高标清同播阶段,各级电视台基本都采用了上下加黑边的“信箱”高清下变换方式。那么在宽屏时代,定位于我们吴江本地的电视发展现状,“信箱”方式是不是高清下变换最佳选择,是否有更好的方式能让用户体验到更佳的视觉效果?本文主要围绕上述问题作一个深入浅出地探讨。 With the 4: 3 aspect ratio of the traditional television gradually withdraw from the stage of history, 16: 9 widescreen TV era has come. Throughout the high standard definition simulcast stage, basically all levels of television stations are used up and down plus black side “mailbox ” HD down conversion. So in the era of widescreen, located in our TV Wujiang local development status, “mailbox ” mode is not the best choice for HD conversion, is there a better way for users to experience better visual effects? This article mainly around The above questions for a simple discussion.