At present, the mainstream display technologies on the market can be mainly divided into three categories: LCD display technology, OLED display technology, and LED display technology. Among them, LCD display technology requires the use of external backlight sources for non self emitting display technology, while LED display technology and OLED display technology are self emitting technologies, which use inorganic/organic materials as light sources to display text, images, and other content.
2. LCD display technology
LCD display technology is a display technology that utilizes an external backlight source. Its core material is liquid crystal molecules with both liquid and solid properties. The transmittance of the backlight source is controlled by adjusting the state of the liquid crystal molecules through an electric field, and color filters are used to achieve color display, thereby presenting the display effect.
Early LCD displays were mainly achieved through CCFL (Cold Cathode Fluorescent Lamp) backlight, but CCFL backlight sources have drawbacks such as low brightness, high power consumption, severe heat generation, and poor stability. Compared to CCFL backlight sources, LED backlight sources have obvious advantages such as lower power consumption, high stability, and higher brightness, and have become the mainstream backlight source in LCD products.
LCD display technology can be used for small to medium to large sizes, but due to manufacturing process limitations, it is difficult to achieve commercialization of display products over 100 inches. LCD, as a relatively mature display technology, has mature and stable manufacturing processes, low cost, and reliable performance. However, it is relatively unstable in low-temperature environments. LCD display technology is currently widely used in small and medium-sized consumer electronics fields such as mobile phones, computers, and televisions.

3. OLED display technology
OLED (Organic Light Emitting Diode) display technology refers to the use of organic semiconductor materials and luminescent materials, driven by an electric field, to generate luminescence phenomena through carrier injection and recombination, and to use multi-layer organic thin film structures to generate electroluminescence to achieve display content.
Compared with LCD, OLED saves on structures such as backlight, liquid crystal, and color filter, and has advantages such as lightweight, high brightness, short response time, low power consumption, and flexible display. However, due to its organic material properties, its performance is less stable in extreme environments such as high temperatures, which has certain requirements for product application environments. At the same time, there are also issues with high manufacturing costs, easy screen burning, and aging, which are mainly applied in small and medium-sized consumer electronics fields such as mid to high-end smartphones, televisions, and tablets.
4. LED display technology
LED (light emitting diode) is a solid light emitting device composed of semiconductor compounds. After it is powered on, it can convert electric energy into light energy to achieve light emission due to the electroluminescence principle.
LED display technology, which uses matrix arranged LED beads as the basic light source, controls the brightness, color, and brightness of each LED bead in the display module to achieve content display. LED, based on its inorganic material properties, has relatively good stability and low requirements for product application environment. It can not only be used for indoor display, but also achieve all-weather outdoor use. At the same time, LED, relying on its infinite extension, can cover display products of small to super large sizes. In addition, due to its self luminescent display, it also has the characteristics of high brightness, large viewing angle, and high clarity, which can meet the needs of different environments.