Difference Between LED Backlight And OLED

LED backlight refers to the use of LED (light emitting diode) as the backlight source of the liquid crystal display, while the LED backlight display is only the backlight source of the liquid crystal display from the traditional CCFL cold light tube (similar to fluorescent lamps) to LED (light emitting diode). The imaging principle of liquid crystal can be simply understood as the deflection of the liquid crystal molecules by external application of voltage, which blocks the transparency of the light emitted by the backlight like a gate, and then projects the light on the color filters of different colors to form an image.

LED display is a combination of microelectronic technology, computer technology and information processing. With its bright colors, wide dynamic range, high brightness, long life, stable and reliable operation, etc., it has become the most advantageous public display media. LED display It has been widely used in large squares, commercial advertisements, stadiums, information dissemination, news releases, securities transactions, etc., and can meet the needs of different environments. The LED display is a display method that controls semiconductor light-emitting diodes. Its general appearance is composed of many light-emitting diodes, usually red, and the characters are displayed by the lights on and off. A display screen used to display various information such as text, graphics, images, animations, market quotations, videos, and video signals.

OLED display screen has excellent characteristics such as self-illumination, no need for backlight, high contrast ratio, thin thickness, wide viewing angle, fast response speed, can be used for flexible panels, wide operating temperature range, simple structure and process, etc. It is considered to be the next-generation flat-panel display emerging application technology.

Many netizens easily associate OLED with LED backlight, which is more hyped by manufacturers. In fact, OLED and LED backlight are completely different display technologies. OLED emits light by driving the organic thin film itself by current, and the light emitted can be red, green, blue, white, etc., and can also achieve full-color effects. So OLED is a new light-emitting principle different from CRT, LED and liquid crystal technology.

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