LED screen made: An LED screen is actually an LCD screen, but instead of having a normal CCFL back light, it uses light-emitting diodes (LED) as a source of light behind the screen. An LED is more energy efficient and a lot smaller than a CCFL, enabling a thinner television screen.
D Display (light-emitting diode display) is a screen display technology that uses a panel of LED as the light source. Currently, a large number of electronic devices, both small and large, use LED display as a screen and as an interaction medium between the user and the system.
Basic principle of LED : A light-emitting diode (LED) is a two-lead semiconductor light source. It is a basic pn-junction diode, which emits light when activated. When a fitting voltage is applied to the leads, electrons are able to recombine with electron holes within the device.
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