The difference between backlight and OLED

LED backlight refers to the use of LED(light emitting diode) as the backlight of the LCD display, and the LED backlight display is only the LCD backlight from the traditional CCFL cold light tube (similar to fluorescent lamp) to the LED(light emitting diode).

The imaging principle of liquid crystal can be simply understood as that the external voltage deflects the liquid crystal molecules like a gate to block the permeability of the light emitted by the backlight, and then the light is projected in the color filter of different colors to form an image.

LED display is a set of microelectronics technology, computer technology, information processing in one, with its bright colors, wide dynamic range, high brightness, long life, stable and reliable work advantages, become the most advantageous public display media, LED display has been widely used in large squares, commercial advertising, sports venues, information dissemination, news release, securities trading, etc. Can meet the needs of different environments. LED display is a way to control the display of semiconductor light-emitting diodes, its approximate appearance is composed of a lot of light emitting diodes, usually red, by the light on and off to display characters.

Used to display text, graphics, images, animation, quotation, video, video signal and other information display screen.

OLED display is considered to be the next generation of flat display emerging application technology due to its self-luminous, no need for backlight, high contrast, thin thickness, wide viewing Angle, fast reaction speed, flexible panel, wide use temperature range, simple structure and process and other excellent characteristics.

Many users are easy to OLED and manufacturers hype more LED backlight linked together, in fact, OLED and LED backlight are completely different display technology. OLED is through the current to drive the organic film itself to emit light, the light can be red, green, blue, white and other colors, but also can achieve full color effect. So OLED is a new luminous principle different from CRT,LED and liquid crystal technology.

In general, LED display, LED backlight, OLED are three completely different imaging technologies.