The upstream manufacturing end of the OLED industry chain includes raw materials - OLED intermediates - OLED pre-sublimation materials - OLED terminal materials, midstream is OLED panels, and downstream is consumer terminals such as TVs, mobile phones, and VR devices. There are many materials constituting OLEDs, mainly anode materials, cathode materials, buffer layer materials, carrier transport materials, and luminescent materials.

OLED materials mainly include two parts: luminescent materials and basic materials, which account for about 30% of the cost of OLED screen materials. The OLED luminescent materials mainly include a red light body/guest material, a green light body/guest material, a blue light body/guest material, and the like. The OLED general-purpose material mainly includes an electron transport layer ETL, an electron injection layer EIL, a hole injection layer HIL, a hole transport layer HTL, a hole blocking layer HBL, an electron blocking layer EBL, etc., as the device structure is optimized, the type of the material It is constantly changing. The organic light-emitting layer material and the transport layer material are key materials of the OLED.

OLED terminal material production and organic material technology are in the hands of foreign companies. At present, OLED terminal manufacturers are mainly Korean, Japanese, German and American manufacturers, including South Korea's Samsung SDI, LG Chemical, Deshan Metal, Doosan, Japan's Idemitsu Kosan, Fortune Valley Chemical, US UDC, Germany Merck and other companies. The main threshold for restricting new businesses is the patent for sublimation materials. Most of the current mainstream organic material technologies are owned by foreign companies, and foreign companies have patented these technologies. Domestic companies are mainly engaged in the production of OLED intermediates and crude monomers. The main industry barriers for OLED intermediates and monomeric crude products are recognized by downstream manufacturers. These companies that have entered the OLED supply chain will benefit from the rapid growth of OLED demand. According to statistics, the global and Chinese OLED materials market in 2018 is 1.258 billion US dollars and 1.517 billion yuan respectively.

Domestic OLED organic material products are mainly low-tech intermediates and monomer crude products, and low-purity sublimation products are few, but in view of the development prospects of OLED in the Chinese market, it is believed that domestic OLED materials with technical advantages and layout on OLED organic materials Enterprises will be expected to achieve a break.