difference between CRT,LCD, plasma and LED..
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Light Emitting Diode (LED) is an improved version of LCD monitor and manufacturers have tried to eliminate the drawbacks of LCD monitors. The both monitors are based on the same display technology and provide better resolution. However, the difference comes on backlighting as LCD monitors use Cold Cathode Fluorescent Light and LED monitors are based on light emitting diode. The backlighting impacts badly on the image and decreases its sharpness and brightness. WLED and RGB LED are the two types of LED monitors, depending on the way LED placed in the panel
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