What is the difference between led display and OLED display

OLED and LED are not a concept. But in fact the two describe completely different things. We all know that the liquid crystal panel emits light through the backlight, which produces a variety of different 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. The OLED can emit light by itself, so there is no need for a backlight. oled: OLED is also known as Organic Electroluminesence Display (OED). And liquid crystal display (Liquid Crystal Display, LCD) is a different type of light-emitting principle. OLED was discovered in the laboratory by Chinese-American professor Ching W. Tang in 1983, and his research on OLED was launched. OLED display technology has the advantages of self-luminescence, wide viewing angle, almost infinitely high contrast, low power consumption, and extremely high response speed. However, the price (larger display panel), lifespan, and resolution are temporarily unable to match the LCD monitor. led: LED display is a collection of microelectronics technology, computer technology, and information processing. With its bright colors, wide dynamic range, high brightness, long life, stable and reliable work, it has become the most advantageous public display media. LED Display screens have been widely used in large squares, commercial advertisements, stadiums, information dissemination, press releases, securities trading, etc., and can meet the needs of different environments. The LED display screen is a way of displaying by controlling semiconductor light-emitting diodes. Its general appearance is composed of many usually red light-emitting diodes, which display characters by turning on and off the lights. A display screen used to display various information such as text, graphics, images, animation, market quotations, videos, and video signals. The LED display screen is a display method that controls the semiconductor light-emitting diodes to display characters by turning on and off the lights. A display screen used to display various information such as text, graphics, images, animation, market quotations, videos, and video signals. Because OLED display screens are also self-luminous, do not need backlight, high contrast, thin thickness, wide viewing angle, fast response speed, can be used for flexible panels, wide operating temperature range, simple structure and manufacturing process and other excellent characteristics, they are It is considered to be the next-generation flat-panel display emerging application technology. OLEDs are called organic light emitting diodes or organic light emitting displays. On the whole, the industrialization of OLEDs has already begun. Monochrome, multicolor and color devices have reached the level of mass production. Large-size full-color devices are still in the research and development stage, but the production capacity is still low. OLED emits light by driving the organic film itself with current, and the light emitted can be monochromatic such as red, green, blue, white, etc., and it can also achieve full-color effects. So OLED is a new light-emitting principle different from CRT, LED and liquid crystal technology. The LED display screen is composed of LED dot matrix and LEDPC panel. The red, blue, white, and green LED lights are turned on and off to display text, pictures, animations, and videos. The content can be replaced at any time. Each part of the component is modular. Structure of the display device. The traditional LED display screen is usually composed of a display module, a control system and a power supply system. The display module is composed of a dot matrix composed of LED lights and is responsible for luminous display; the control system can display text, pictures, videos and other content on the screen by controlling the brightness of the corresponding area. The color LED display can not only play text, pictures, animation, but also video and other formats