LCD (short for Liquid Crystal Display) liquid crystal display.
The LCD is constructed by placing a liquid crystal cell in two parallel glass substrates, a TFT (thin film transistor) on the lower substrate glass, a color filter on the upper substrate glass, and liquid crystal molecules controlled by signal and voltage changes on the TFT. The direction of rotation is such that the polarization of each pixel is controlled to be emitted or not for display purposes.
Now that LCD has replaced CRT as the mainstream, the price has dropped a lot and has been fully popularized.
The LED display on the market is not really a LED display. It is precisely an LED-backlit LCD display. The LCD panel is still a traditional LCD display. In a sense, this is somewhat fraudulent. nature! For liquid crystal displays, the most important key is their LCD panel and backlight type, while the LCD panel on the market generally uses TFT panel, which is the same. The difference between LED and LCD is only that their backlight type is different: LED The backlight and CCFL backlight (also known as fluorescent light) are diode and cold cathode lamps, respectively.
LCD is the acronym for Liquid Crystal Display, which means “liquid crystal display”, which is a liquid crystal display. LED refers to one of liquid crystal displays (LCDs), that is, liquid crystal displays (LCDs) that use LEDs (light-emitting diodes) as backlight sources. It can be seen that the LCD is LED-included. Corresponding to the LED is actually CCFL.