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  2. LCD projector - Wikipedia

    en.wikipedia.org/wiki/LCD_projector

    A projector's throw ratio is used when installing projectors to control the size of the projected display. [1] For example, if the throw ratio is 2:1 and the projector is fourteen feet away from the screen, then the display width will be seven feet.

  3. Philips DP70 - Wikipedia

    en.wikipedia.org/wiki/Philips_DP70

    The custom-built power supply control panel for the motors of the two Philips DP70 projectors in the Egyptian Theatre, Hollywood. Any frame rate between 16 and 30 can be selected, and the two motors can also be interlocked to enable the projection of left and right eye 3D prints.

  4. Projection panel - Wikipedia

    en.wikipedia.org/wiki/Projection_panel

    It works with an overhead projector. The panel consists of a translucent LCD, and a fan to keep it cool. The projection panel sits on the bed of the overhead projector, and acts like a piece of transparency. The panels have a VGA input, and sometimes Composite (RCA) and S-Video input. Later models have remotes, with functions such as 'freeze ...

  5. Liquid-crystal display - Wikipedia

    en.wikipedia.org/wiki/Liquid-crystal_display

    The LCD panel is powered by LCD drivers that are carefully matched up with the edge of the LCD panel at the factory level. The drivers may be installed using several methods, the most common of which are COG (Chip-On-Glass) and TAB ( Tape-automated bonding ) These same principles apply also for smartphone screens that are much smaller than TV ...

  6. TFT LCD - Wikipedia

    en.wikipedia.org/wiki/TFT_LCD

    A control mechanism for the backlight is usually included on the same controller board. The low level interface of STN , DSTN , or TFT display panels use either single ended TTL 5 V signal for older displays or TTL 3.3 V for slightly newer displays that transmits the pixel clock, horizontal sync , vertical sync , digital red, digital green ...

  7. Digital light processing - Wikipedia

    en.wikipedia.org/wiki/Digital_Light_Processing

    A three-chip DLP projector uses a prism to split light from the lamp, and each primary color of light is then routed to its own DMD chip, then recombined and routed out through the lens. Three chip systems are found in higher-end home theater projectors, large venue projectors and DLP Cinema projection systems found in digital movie theaters.

  8. Overhead projector - Wikipedia

    en.wikipedia.org/wiki/Overhead_projector

    A liquid-crystal panel mounted in a plastic frame was placed on top of the overhead projector and connected to the video output of the computer, often splitting off the normal monitor output. A cooling fan in the frame of the LCD panel would blow cooling air across the LCD to prevent overheating that would fog the image.

  9. Liquid crystal on silicon - Wikipedia

    en.wikipedia.org/wiki/Liquid_crystal_on_silicon

    The silicon substrate is used to control the individual pixels and provides the necessary electronics to drive the LCos panel. The light source is used to provide the necessary illumination for the LCos panel. The most common light source used in LCos display systems is a high-intensity lamp.