LCD | LED | CRT |
a) LCD stands for Liquid Crystal Display which is a thin, flat display screen made up of any number of color or monochrome pixels arrayed in front of a light source or reflector. b) It is often used in electronic Devices because it uses very small amounts of electric power. | a) LED stands for Light Emitting Diode which is a semiconductor diode that emits incoherent narrow- spectrum light when electrically biased in the forward direction of the p-n junction. This effect is a form of electroluminescence.
b) It can be used as a regular household light source. | a) CRT stands for Cathode Ray Tube which is a tube coated with phosphorous in inner surface. When electrons produced by e-gun come in contact with phosphorous wall, light is produced by virtue of which we can see.
b) It is generally used in TV scrreens, monitors, etc |
If you are unable to see the table.Then, copy it and paste it into microsoft word.
just get this, crt=old cathode ray tube displays, LCD= also obsolete display, LED=new LCD displays with LED backlit only and OLED=pure LED displays
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