Knowledge of LCD LED OLED QLED！(3)
OLED
OLED (Organic Light-Emitting Diode) organic light-emitting diode, although there is only one letter difference between it and LED, they actually describe completely different things. We all know that the LCD panel emits light through the backlight, and produces various colors through the refraction of the liquid crystal molecules. The liquid crystal molecules themselves cannot emit light, and the LED only refers to the backlight. OLEDs, on the other hand, emit light by themselves, so no backlight is required. LEDs are made of metal materials, while OLEDs are made of organic materials. They can emit light without being illuminated by light, and the contrast is better. Usually, LEDs need to be illuminated by a backlight to see things.
At present, the materials used in light-emitting diodes are all inorganic semiconductor materials, which are difficult to apply to large-area and high-resolution components (EX: Screens). To solve these problems depends on new organic semiconductor materials (that is, hydrocarbon-containing material), it can be coated on a conductive glass sheet and passed through an electric current to emit light of various wavelengths.
