屏幕宽高比是指屏幕画面横向与纵向的比,也就是画面宽度和高度之比。屏幕宽高比用两个整数的比来表示,如:4:3与16:9。宽高比这个话题对于购置一个新的视频投影系统来说是非常重要的,视频演示系统的好坏很大程度上取决于该系统的宽高比适应能力和转换的便捷性。在以前,各种视频格式都是4:3,人们在选购演示设备的时候根本就不需要考虑这个问题,但是随着信息技术的发展,视频信号的格式也日益繁多,如16:9和16:10等视频格式也大量涌现,所以在规划家庭影院时,一定要认真考虑这 Screen aspect ratio refers to the ratio of horizontal and vertical screen screen, which is the screen width and height ratio. The screen aspect ratio is expressed as a ratio of two integers, such as 4: 3 and 16: 9. Aspect Ratio This topic is very important for the purchase of a new video projection system. The quality of the video presentation system depends very much on the system’s aspect ratio adaptability and ease of conversion. In the past, all kinds of video formats were 4: 3, people do not need to consider this issue when purchasing a presentation device, but with the development of information technology, the format of video signals is also increasing, such as 16: 9 and 16:10 video formats such as a large number of emerging, so when planning a home theater, we must seriously consider this