Zeng Meiwei: LED and OLED---point-to-face competition

The semiconductor lighting industry is facing a rare historical opportunity. The output of LED packaging and application products in China has accounted for 70% of the world's total. The development of the LED industry is taking advantage of the development of the LED industry. It is actively developing in the direction of advantages, promoting technological progress and maturity of production processes, thus promoting China's semiconductor industry. The overall advancement of lighting technology has also played a crucial role in the arrival of the era of semiconductor lighting.

On August 30th, the 8th High-tech LED Industry Summit held in conjunction with the High-tech LED Boutique Exhibition was held in the Century Hall of the Shanghai International Convention Center. The technical section of the forum revolves around "LED Lighting Technology - Problems and Solutions", LED lighting design and application engineering - the theme of deciding the segmentation field, etc. The sapphire production process in the whole industry chain of LED, middle and lower reaches, LED epitaxial chip technology at home and abroad, phosphor, detection equipment, LED devices and modules, and OLED From the point of view to the topic, I shared a comprehensive key technology with the guests. Participants expressed that it was a very rare training and promotion opportunity.

Zeng Meizhen, research director of the Institute of Materials Research, believes that the key factors in the development of OLED technology are high-efficiency, long-life blue light-emitting materials, low-cost light-taking technology and large-area process technology. The difference between LED and OLED is that OLED is a surface light source. The gray level is not very high. The higher the current, the faster the life loss will be. The usage rate will not be very high. It has very uniform light and no glare, but it is not suitable for use. outdoor. LED light is highly efficient in cold tones and high color temperatures, making it ideal for outdoor use. OLEDs are highly efficient at low color temperatures in warm tones. OLEDs in the future can be developed in 3D shapes. The LED process is complex and the OLED is relatively simple.

She mentioned that OLEDs have reached 124 lm/W using 3D outcoupling technology. According to NanoMarkets, the global OLED lighting market is expected to reach US$4.8 billion in 2016, with Europe accounting for approximately US$1.5 billion (31.25%) and Asia with US$2.1 billion (43.75%). Asia is the largest in Japan and is forecast to reach US$1.1 billion in 2016. China is forecast to be US$420 million and South Korea will be US$230 million.

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