What does the screen mean?

What does the screen mean?

A white screen for showing films. During the silent film period, the screen was coated with luster white pigment, the screen surface was flat, fixed with a permanent screen stand, and erected on the projection table. After the birth of the sound film, due to the need for sound transmission, the use of rubber and plastic materials made of perforated screen. Make the device's behind-the-scenes speakers emit sound through the screen. The size of the screen varies according to the aspect ratio of the film. The early screen aspect ratio was 4:3 (I. e. 1.33:1). With the advent of widescreen movies, the screen aspect ratio increased to 8:3 (I. e., 2.66:1). With the continuous improvement of the wide-screen film technology, the width-to-height ratio of the film is also constantly changing. In order to adapt to this change, cinemas set up wider screens accordingly, and set up black cloth with movable ends according to the needs of showing films of different specifications, so as to cover the screen into a desirable width-to-height ratio specification.