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  2. Rear-projection television - Wikipedia

    en.wikipedia.org/wiki/Rear-projection_television

    A projection television uses a projector to create a small image or video from a video signal and magnify this image onto a viewable screen. The projector uses a bright beam of light and a lens system to project the image to a much larger size. A front-projection television uses a projector that is separate from the screen and the projector is ...

  3. List of CRT video projectors - Wikipedia

    en.wikipedia.org/wiki/List_of_CRT_video_projectors

    Available as 72 or 120-inch (3,000 mm) model: PT-200 : Panasonic: 1990: 7 inches ... 50 inch fixed screen projector with two projector lenses with three tubes. 60 fL ...

  4. Comparison of CRT, LCD, plasma, and OLED displays - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_CRT,_LCD...

    Does not normally occur at 100% brightness level. At levels below 100% flicker often occurs with frequencies between 60 and 255 Hz, since often pulse-width modulation is used to dim OLED screens. [26] [27] Risk of image persistence or burn-in: High [28] Low [28] High [28] High [29] Energy consumption and heat generation High [30] Low [30]

  5. Large-screen television technology - Wikipedia

    en.wikipedia.org/wiki/Large-screen_television...

    A 140 cm (56 in) DLP rear-projection TV Large-screen television technology (colloquially big-screen TV) developed rapidly in the late 1990s and 2000s.Prior to the development of thin-screen technologies, rear-projection television was standard for larger displays, and jumbotron, a non-projection video display technology, was used at stadiums and concerts.

  6. Projection screen - Wikipedia

    en.wikipedia.org/wiki/Projection_screen

    Although a projection screen cannot improve a projector's contrast level, the perceived contrast can be boosted. In an optimal viewing room, the projection screen is reflective, whereas the surroundings are not. The ambient light level is related to the overall reflectivity of the screen, as well as that of the surroundings.

  7. CRT projector - Wikipedia

    en.wikipedia.org/wiki/CRT_projector

    A Zenith 1200 CRT Projector based home theater. Visible extending from the ceiling are three lenses, one each for red, green and blue Black and white CRT projector. A CRT projector is a video projector that uses a small, high-brightness cathode-ray tube (CRT) as the image generating element. The image is then focused and enlarged onto a screen ...