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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 cumulative non-uniform use of the screen. Newer liquid-crystal displays (LCDs) may suffer from a phenomenon called ...
Image persistence, or image retention, is the LCD and plasma display equivalent of screen burn-in. Unlike screen burn, the effects are usually temporary and often not visible without close inspection. Plasma displays experiencing severe image persistence can result in screen burn-in instead. Image persistence can occur as easily as having ...
Typically less than 0.01 ms, as low as 2 μs, [15] [19] but limited by phosphor decay time (around 5 ms) Estimates varying from under 0.01 ms to as low as 1 μs. [20] [21] Frame rate (refresh rate) 60–85 fps typically, some CRTs can go even higher (200 fps at reduced resolution [22]); internally, display refreshed at input frame rate speed
A cue mark, also known as a cue dot, a cue blip, a changeover cue[1] or simply a cue, is a visual indicator used with motion picture film prints, usually placed in the upper right corner of a film frame. [2] Cue dots are also used as a visual form of signalling on television broadcasts. A pair of cue marks is used to signal the projectionist ...
Digital artifacts, visual artifacts resulting from digital image processing. Noise. Screen-door effect, also known as fixed-pattern noise (FPN), a visual artifact of digital projection technology. Ghosting (television) Screen burn-in. Distortion. Silk screen effect. Rainbow effect. Screen tearing.
The phosphors used in CRTs make them vulnerable to image burn-in when a static image is displayed on a screen for a long time, e.g., the table frame for an airline flight schedule on an indoor sign. LCDs do not have this weakness, but are still susceptible to image persistence .
Screen printing is a printing technique where a mesh is used to transfer ink (or dye) onto a substrate, except in areas made impermeable to the ink by a blocking stencil.A blade or squeegee is moved across the screen to fill the open mesh apertures with ink, and a reverse stroke then causes the screen to touch the substrate momentarily along a line of contact.
This is the estimated time over which maximum picture brightness degrades to half the original value. [52] Plasma screens are made out of glass, which may result in glare on the screen from nearby light sources. Plasma display panels cannot be economically manufactured in screen sizes smaller than 82 centimetres (32 in).