It will take two years for OLED to enter the commercialization stage

OLED refers to the electric field driven by carrier injection and compound LED luminous phenomenon. The principle is the use of IT O of transparent glass and metal electrodes were used as anode and cathode devices, driven in a certain voltage, the electrons and holes are injected from the cathode and anode to electron and hole transport layer, and then migrate to the emitting layer, the luminescent molecules meet exciton excitation, the latter after irradiation of visible light. The radiation can be observed from the side of the ITO, and the metal electrode film also acts as a reflector.

According to market research firm DisplaySearch predicts that the OLED in the display (Display) and lighting (Lighting) the development of the two major application market, bright prospects. Although only a few vendors in the supply of OLED related products, but it is estimated that in 2010 the global OLED industry output value has stood on the $1 billion mark. As more and more manufacturers gradually into mass production, will increase the supply of OLED, OLED market size will continue to expand rapidly. 2011 output value of more than 2 billion U.S. dollars, the annual growth rate of 100%.

Current OLED two is mainly used for display and lighting market, which shows more rapid application development. At this stage there are many mobile phones, MP3, digital cameras, automotive displays and other consumer electronics products, import PMOLED panel or AMOLED panel. Especially in the big brands such as SAMSung, Nokia, HTC and other major manufacturers have been driven by the use of AMOLED panel screen high order mobile applications are popular.

OLED panel display application development, AMOLED technology of TFT-LCD current mainstream display (TFT LCD), is the threat of substitution of the products. Because AMOLED does not require a backlight, LCD, backlight module, color filter and other components, the material consumption is reduced, the loss on the environment is relatively lower, but also has better color saturation and contrast, more power, more light (panel thickness of only about 1mm, a TFT-LCD panel about 2-3mm thinner), reaction faster without blur and other characteristics, the future still have a chance at the flexible display application development.

However, jihsun securities investment adviser pointed out that the main obstacle is at this stage of the AMOLED panel, the development of TFT-LCD technology has been quite mature, and has formed a huge industrial cluster, with other display difficult to go beyond the supply chain advantage in the short term. Coupled with the TFT-LCD panel has also been developed to the 10 generation line, in large size applications, but also has the absolute cost advantage. In addition, the average life of the TFT-LCD panel has been up to 6-10 hours, but the AMOLED panel in terms of service life, the quality is uneven.

In addition, how to improve the yield, but also one of the AMOLED technology in the development of key breakthrough. In particular, the formation of organic materials in the AMOLED light-emitting layer in the evaporation process, including the relative position of the metal mask micro pores, suspended particles, etc., will affect the yield of film. As for the encapsulation technology of AMOLED, early use of metal cover plate, drying, glue box package, later evolved into a glass frit package, filling the whole solid package, the future will be in the film packaging development, to continue to improve and enhance the luminescence lifetime from water.

As O LED lighting applications, according to the opinions of the scholars, OLED lighting is energy-saving and carbon reduction, no mercury, no UV, no infrared, no fever, no glare, light hail of low driving voltage, design of intelligent dimming and soft flexible characteristics and advantages, in recent years has been no less international lighting in the development of brands.

But because the key obstacles of OLED lighting in the short term as well as service life, luminous efficiency and cost, the industry believes that the OLED lighting products to import production and commercialization stage, but also may be at least 1-2 years later than LED lighting.