2011 OLED output multiplier lighting and display applications

According to the market research firm Display Search predicts that in the development of display and lighting applications in two major markets OLED, a bright future. 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%.

The principle of LED OLED to the organic compound film as luminescent layer, sandwiched between 2 layers of electrodes, when the current through the light emitting layer, light, and the light through the transparent electrode release. General OLED organic light-emitting materials are small molecules (Small Molecules) OLED components. According to different pixel addressing (Pixel Addressing) can be divided into passive matrix (Passive Matrix) and OLED (Active Matrix) OLED, that is, PMOLED and AMOLED two.

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.

Display application development on the OLED panel, AMOLED on the current mainstream display technology of TFT-LCD (thin film transistor liquid crystal display), 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.

But 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 shield micro pores, suspended particles and so on, 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.

For OLED 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, low driving voltage, the design of intelligent light and soft and flexible characteristics and advantages, in recent years has been a lot of 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.