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2. Screen-door effect - Wikipedia

   en.wikipedia.org/wiki/Screen-door_effect

   The screen door effect on Digital Light Processing (DLP) projectors can be mitigated by deliberately setting the projected image slightly out of focus, which blurs the boundaries of each pixel to its neighbor. This minimizes the effect by filling the black pixel perimeters with adjacent light.

3. 3LCD - Wikipedia

   en.wikipedia.org/wiki/3LCD

   3LCD is the name and brand of a major LCD projection color image generation technology used in modern digital projectors. 3LCD technology was developed and refined by Japanese imaging company Epson in the 1980s and was first licensed for use in projectors in 1988. In January 1989, Epson launched its first 3LCD projector, the VPJ-700.

4. Fulldome - Wikipedia

   en.wikipedia.org/wiki/Fulldome

   LCOS and modified LCOS projectors have improved on LCD contrast ratios while also eliminating the "screen door" effect of small gaps between LCD pixels. "Dark chip" DLP projectors improve on the standard DLP design and can offer a relatively inexpensive solution with bright images, but the black level requires physical baffling of the projectors.

5. 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.

6. Projector - Wikipedia

   en.wikipedia.org/wiki/Projector

   A projector or image projector is an optical device that projects an image (or moving images) onto a surface, commonly a projection screen. Most projectors create an image by shining a light through a small transparent lens, but some newer types of projectors can project the image directly, by using lasers. A virtual retinal display, or retinal ...

7. 62 Gifts for Teens That Are Actually Cool, According to Real ...

   www.aol.com/lifestyle/72-gifts-teens-actually...

   The projector is compatible with many devices, including smartphones and USB drives, and has dual stereo speakers. It can project up to 200 inches, which means it’ll make for some pretty epic ...