视频\"画中画\"技术,在一幅大的图像内显示另外一幅内容不同的小的图像，小图像的尺寸大小一般地说为大图像尺寸的1/4或1/9，显示位置在大图像的右上角。-video "picture-in-picture" technology, in a great show of images within other elements of a small image, the small image size generally larger image size of 1 / 4 or 1 / 9, location in the upper right image.