actually LED TV undo? ellam LCD thanne alle?
LED TV – The Myth | I Said It
ottu mikka brand site search cheythalum category LCD or LED LCD ennanu.. aarum LED ennu thelichu parayunnumilla.
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LCD screens have two components. The screen for displaying the scene. But the LCD screen is incapable of illuminating. It requires some external source of illumination. Hence the second component, CCFLs(cold cathode florescent lamps) are used to provide the backlight. But these lamps have a disadvantage. It is not capable of emitting bright light evenly, for a longer period of time. It is big in size and though the LCD panel and circuit board takes minimal space, the CCFLs require larger space, hence the 10 cm thickness. So manufacturers needed shift to a more efficient form of illumination. LED, which have a longer life, better illumination power, and consume less light, were found to be the obvious alternatives. And, them being very small, was an added advantage. So manufacturers moved towards LED as the source of illumination, without giving much thought to the development of actual LED screens. Organic LED(OLED)s are able to self illuminate, hence they will do away with the necessity of external source for that. If you want to compare LED with LCD screens, check out the AMOLED screens on various mobiles available, against those with LCD screens.