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目前,电视图像和电视图像显示器件(屏),均有16∶9宽幅和宽屏以及4∶3窄幅和窄屏之分,存在电视图像显示器件(屏)宽高比与电视图像宽高比不一致的情况。生理和心理测试表明,图像宽高比达16∶9以上的宽幅图像利于建立视觉临场感。为此,我国高清晰度电视的图像宽高比已确定为16∶9。但由于历史和其他一些原因,我国原来的模拟电视图像宽高比为4∶3。由于宽屏幕电影、图像宽高比多为16∶9的
At present, television images and television image display devices (screens) are both 16: 9 widescreen and widescreen and 4: 3 narrow and narrow screens, with the aspect ratio of TV image display device (screen) to TV image being wide Inconsistent situation. Physiological and psychological tests show that wide-format images with aspect ratios up to 16: 9 help to create a visual presence. To this end, China’s high-definition television image aspect ratio has been determined as 16: 9. However, due to historical reasons and other reasons, the original aspect ratio of analogue television in our country is 4: 3. Due to widescreen movies, the image aspect ratio is mostly 16: 9