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2. LCD projector - Wikipedia

   en.wikipedia.org/wiki/LCD_projector

   Even so, the best image quality is found using a blank white, grey, or black [citation needed] (which blocks reflected ambient light) surface, so dedicated projection screens are often used. Perceived color in a projected image is a factor of both projection surface and projector quality.

3. Vitascope - Wikipedia

   en.wikipedia.org/wiki/Vitascope

   Vitascope was an early film projector first demonstrated in 1895 by Charles Francis Jenkins and Thomas Armat. They had made modifications to Jenkins' patented Phantoscope, which cast images via film and electric light onto a wall or screen. The Vitascope is a large electrically-powered projector that uses light to cast images.

4. Projection screen - Wikipedia

   en.wikipedia.org/wiki/Projection_screen

   Electric screens are similar to pull-down screens, but instead of the screen being pulled down manually, an electric motor raises and lowers the screen. Electric screens are usually raised or lowered using either a remote control or wall-mounted switch, although some projectors are equipped with an interface that connects to the screen and ...

5. Movie projector - Wikipedia

   en.wikipedia.org/wiki/Movie_projector

   35 mm movie projector in operation Bill Hammack explains how a film projector works. A movie projector (or film projector) is an opto-mechanical device for displaying motion picture film by projecting it onto a screen. Most of the optical and mechanical elements, except for the illumination and sound devices, are present in movie cameras.

6. List of largest video screens - Wikipedia

   en.wikipedia.org/wiki/List_of_largest_video_screens

   Mitsubishi Electric Diamond Vision [40] 32 NRG Stadium: Houston United States: 2013 1,351.6 14,549 84.5 by 16.0 277.2 by 52.5 5.28 Traditional Mitsubishi Electric Diamond Vision [41] 33 Science City, Kolkata: Kolkata India: 1,230 13,200 122 by 10 400 by 33 15,360 × 8,640 pixels VizExperts 34 Progressive Field: Cleveland United States: 1,211.4 ...

7. Rear-projection television - Wikipedia

   en.wikipedia.org/wiki/Rear-projection_television

   A variation is a video projector, using similar technology, which projects onto a screen. Three types of projection systems are used in projection TVs. CRT rear-projection TVs were the earliest, and while they were the first to exceed 40", they were also bulky and the picture was unclear at close range.