LCD and LED: What are the differences?

Definition LCD

The LCD screen with a diagonal of 32 inches , according to " picture" the most established television version in German living rooms . LCD The acronym derives from Old English and means " Liquid Crystal Display" . This refers to liquid crystals whose orientation is controlled by electrical impulses. Benefits arise primarily in the light yield , but also the power consumption is significantly lower than competing plasma process . In plasma screens small gas discharges take place where plasma. This plasma excites phosphors , thus creating colored light. This plasma TV for a long time had a clear advantage in terms of the representation of black and dark colors

The LED is

The abbreviation LED in German means as much as "light-emitting diode." LEDs are replacing the TV from the conventional fluorescent tubes in LCD TVs and offer a much cheaper and more efficient way of supplying light . By LED can be a background control dynamically and individually. In other words, better black levels are achieved by the black areas of the image are simply not illuminated. But LEDs not only bring a quality advantage , they also save a lot of power and the durability of round 150 years also speaks for the technology. ( Avoid damage - Keep your TV in good condition )

The difference between LED and LCD

To LED and LCD TVs differ from the technology only by its light . For both technologies for the display liquid crystals are used. While in LCD TVs but cold cathode tubes ( CCRT ) are used for backlighting , LEDs come in LED TVs used. Since LEDs are much smaller and much shallower space-saving TVs can be built. There are already first OLED Display (organic light emitting diode) - the LEDs are made ​​from organic semiconductor materials , the light itself so much that can be dispensed with a backlight . However, the material for this technology is not yet ready for the market larger displays and short-lived.