LED display and LCD display appearance how to distinguish

The brightness of the LED screen is very high, but the grain feeling is very serious, the picture is not fine, it is mainly used for outdoor or large equipment display: LCD screen brightness is low, the picture and soft, used to close a small area of the display image. LED screen is in the LCD panel on the back plate with numerous secondary luminous tube light, with bright color, uniform, long life characteristics, LCD screen is in a traditional white light bulb to shine on the bottom of the back plate. Dim the light of tube determines the brightness of the screen. LED screen is LED screen, LCD screen LCD screen, but there are now some LCD with LED backlight, but still belongs to the LCD screen. LED backlight. LCD screen look from the appearance and CCFL backlight screen is the same, basically. LED display advertising is the outdoor or station or trains that screen, also has a full color screen in the square. The brightness of the LED screen is very high, but the grain feeling is very serious, the picture is not fine, it is mainly used for outdoor or large equipment, according to the LCD screen brightness is low, the picture and soft, used to close a small area of the display image.