On November 30, the luminescent materials developed by China-made OLED screens broke the international monopoly. "White powder" is produced in the thousand-level purification workshop, which is the OLED display luminescent material produced by WHSS Optoelectronics Technology Co., Ltd.
Break the international monopoly in one fell swoop
OLED (Organic Light Emitting Diode) displays are mainly used in mobile phones and computers. "Traditional LED displays require backlights to emit light through the polarization of liquid crystals, and a new generation of OLED organic materials are coated on conductive substrates and emit light when powered on." Mu Guangyuan introduced, "OLED screens can not only reduce damage to eyesight It can also increase the light extraction rate, reduce energy consumption, and can be folded, curled, and cropped. There are infinite possibilities for future display methods. For example, tablet computers may be able to achieve folding. "
After 7 years of accumulation, the company has independently developed four types of OLED screen light-emitting materials such as red, green and blue light-emitting layers and cover layers. "Luminescent materials account for 15% of the manufacturing cost of display screens, but China's OLED industry lags behind countries such as Japan and South Korea for about three years. Currently, more than 90% of luminescent materials rely on imports; the luminescent materials we develop not only break the international monopoly, but also downstream Manufacturers that produce display screens have saved more than 50% of their costs. "Mu Guangyuan said.
Since Apple took the lead in using OLED screens in 2016, mobile phone manufacturers from various countries have followed up to update the display screen. China has built 10 OLED screen production lines, including 3 in Hubei, which were invested and built by Huaxing Optoelectronics, Tianma and BOE, with an annual output value of about 200 billion yuan.
"Intelligence" Achieves Innovation
At the beginning of research and development, WHSS Optoelectronics Technology Co., Ltd. has always attached great importance to the protection of intellectual property rights.
At present, WHSS Optoelectronics Technology Co., Ltd. has about 60 invention patents and utility model patents, 3 international invention patents, and about 30 invention patent applications per year. "We plan to form 150 to 200 knowledge patent clusters within 3 to 5 years to ensure that no intellectual property disputes will occur in the future." Mu Guangyuan said.
In production equipment, WHSS Optoelectronics Technology Co., Ltd. also focuses on localization. "You see, these equipments are developed by our own and produced by domestic manufacturers." Mu Guangyuan said, "I used to import equipment from South Korea, a set of more than 1 million yuan. If maintenance is needed, Korean engineers will start counting from the time of boarding the aircraft. This is not a small expense. After the equipment is localized, the cost is greatly reduced. "
Whether it is to master the core technology or localize the production equipment, it comes from WHSS strong professional team. Currently, WHSS Optoelectronics has more than 350 employees, one third of which are R & D personnel, including 5 PhDs and 6 Masters in the field of organic semiconductors.
Since 2014, WHSS Optoelectronics has invested more than 20 million yuan in research and development, and the current monthly investment in scientific research is more than 1.5 million yuan. "The materials industry is updated and iterates quickly, and the research and development cycle is long. The materials that may take two years to develop are eliminated in one year. Therefore, we must always maintain a strong scientific research ability and sink to research and development in order to keep up with market demand. , Continue to develop better materials. "Mu Guangyuan said.
Cultivate the supply chain "benefit people and self-interest"
WHSS Optoelectronics draws on advanced experience from Japan and South Korea, establishes semiconductor material production organization concepts and up to thousands of standard quality control systems, and gradually cultivates its own supply chain system. "The development of the display industry is deductive, and it has gradually developed to the upstream of the screen, that is, the localization of luminescent materials, but the upstream industry of luminescent materials in China is still in the original stage, so we need to cultivate our own supply chain system to provide compliance Our quality-required products. No matter which part of the problem occurs, it will affect the quality of the products in the hands of consumers. Just like moldy flour, it will affect the quality of bread. "Mu Guangyuan said.
In addition to establishing its own product quality control system, WHSS Optoelectronics also worked with the customer Tianma to formulate luminescent material industry standards in order to promote the development of this industry standard.
At present, the annual output value of WHSS Optoelectronics is about 40 million yuan. It is not only a supplier of Huaxing Optoelectronics and Tianma, but some products have also entered the procurement list of Korean companies. A plant covering an area of 70 mu is under construction. After the first phase is completed, it will be able to achieve a production capacity of 2 tons next year, with an output value of 100 million yuan; after all the plants are completed and put into production, the output value will reach 800 million yuan.
For the future, Mu Guangyuan was full of enthusiasm: "We predict that within 3 years, all OLED screen production lines under construction will be put into operation, and the localization rate will reach 20%. At present, there are no more than 5 domestic energy OLED light-emitting companies, and our company is ready , Will work with colleagues to promote the localization process of the entire industrial chain. "