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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. 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 ...
skin burn; allergic contact dermatitis. Phytophotodermatitis, also known as berloque dermatitis, [1][2][3] margarita photodermatitis, [4][5] lime disease[6] or lime phytodermatitis[6] is a cutaneous phototoxic inflammatory reaction resulting from contact with a light-sensitizing botanical agent (such as lime juice) followed by exposure to ...
Often, "friction burns" occur, especially on the face. The unfolding airbag can cause multiple superficial parallel lesions with its slapping action. [7] [8] Usually, irritant contact dermatitis affects the face, arms, and upper chest. It is characterized as purpuric aspects and erythema and swelling. Patients report stinging and burning ...
A hydrofluoric acid burn is a chemical burn from hydrofluoric acid. [1] Where it contacts the skin it results in significant pain, swelling, redness, and skin breakdown. [1][2] If the fumes are breathed in swelling of the upper airway and bleeding may occur. [2] Complications can include electrolyte, heart, lung, kidney, and neurological ...
Allergic contact dermatitis (ACD) is a form of contact dermatitis that is the manifestation of an allergic response caused by contact with a substance; the other type being irritant contact dermatitis (ICD). Although less common than ICD, ACD is accepted to be the most prevalent form of immunotoxicity found in humans. [1]
Erythema ab igne in a person with chronic abdominal pain who found some relief from the application of heat. Erythema ab igne (Latin for 'redness from fire') EAI, also known as hot water bottle rash, [2] is a skin condition caused by long-term exposure to heat (infrared radiation). [3] Prolonged thermal radiation exposure to the skin can lead ...
A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers to display information. Liquid crystals do not emit light directly [1] but instead use a backlight or reflector to produce images in color or monochrome.