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  2. Screen burn-in - Wikipedia

    en.wikipedia.org/wiki/Screen_burn-in

    Burn-in on a monitor, when severe as in this "please wait" message, is visible even when the monitor is switched off. Screen burn-in, image burn-in, ghost image, or shadow image, is a permanent discoloration of areas on an electronic visual display such as a cathode-ray tube (CRT) in an older computer monitor or television set. It is caused by ...

  3. Image persistence - Wikipedia

    en.wikipedia.org/wiki/Image_persistence

    Image persistence, or image retention, is a phenomenon in LCD and plasma displays where unwanted visual information is shown which corresponds to a previous state of the display. It is the flat-panel equivalent of screen burn-in. Unlike screen burn-in, the effects are usually temporary and often not visible without close inspection.

  4. Screensaver - Wikipedia

    en.wikipedia.org/wiki/Screensaver

    Before the advent of LCD screens, most computer screens were based on cathode-ray tubes (CRTs). When the same image is displayed on a CRT screen for long periods, the properties of the exposed areas of the phosphor coating on the inside of the screen gradually and permanently change, eventually leading to a darkened shadow or "ghost" image on the screen, called a screen burn-in.

  5. Pixel shifting - Wikipedia

    en.wikipedia.org/wiki/Pixel_shifting

    Some camcorders and digital microscopes employ separate color channel sensors (usually RGB = red, green, blue) sensors.. Pixel shifting may be implemented for one or more of these sensors by moving such a sensor by a fraction of a pixel (or even a whole pixel value) in both x- and y-direction.

  6. Visual artifact - Wikipedia

    en.wikipedia.org/wiki/Visual_artifact

    A retinography.The gray spot in the center is a shadow artifact. Image quality factors, different types of visual artifacts; Compression artifacts; Digital artifacts, visual artifacts resulting from digital image processing

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    mail.aol.com

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  8. Defective pixel - Wikipedia

    en.wikipedia.org/wiki/Defective_pixel

    Close-up of an LCD, showing a dead green subpixel as a black rectangle A defective pixel or a dead pixel is a pixel on a liquid crystal display (LCD) that is not functioning properly. The ISO standard ISO 13406-2 distinguishes between three different types of defective pixels, [ 1 ] while hardware companies tend to have further distinguishing ...

  9. 35 of the very best gifts for seniors that they'll actually ...

    www.aol.com/lifestyle/best-gifts-for-seniors...

    The straightforward LCD display tracks essential metrics like time, distance, calories burned, and even body fat percentage. ... and includes a clip that goes onto the screen and remote you use ...