In order to seize the opportunity of the
OLED lighting market, Taiwan panel makers, in addition to courage to overcome the related technical barriers, also actively combine the strength of downstream system vendors to jointly expand the OLED lighting market. In the long run, Taiwan panel makers are entering the field of OLED lighting. To avoid the ultimate fate of foundry, developing their own brands will be a key issue.
The domestic panel factory has re-transmitted the news in the organic light-emitting diode (OLED) lighting market. After AUO, Huaying also expects to introduce OLED lighting trial production in the second quarter of 2012.
Optimistic about the development potential of OLED lighting, Taiwan panel suppliers for the early card market opportunities, on the one hand continue to break through the technical bottleneck of OLED lighting, on the other hand, intensively negotiate strategic alliance with downstream system vendors, trying to highlight OLED lighting by Different from the competitive advantages of traditional and LED light sources, we are aggressively tapping the niche application layout to accelerate the popularity of the OLED lighting market.
OLED lighting technology breakthrough Huaying Q2 trial production
After gradually overcoming technologies such as OLED illumination light uniformity, high production cost, luminous efficiency, and longevity, Huaying has planned to start shipping the hundreds of OLED lighting panels every month in the second quarter of 2012 to test the market water temperature. If the market responds well, it will be shipped in large quantities in 2013.
Huang Yanyu, director of the Huaying Advanced Technology Development Division, said that considering the immature OLED lighting market and the huge budget for brand marketing, short-term Huaying will not develop its own OLED lighting brand planning.
Huang Yanyu (picture 1), director of the Huaying Advanced Technology Development Office, said that Huaying is intensively developing OLED lighting through the fourth-generation line, and will gradually improve OLED lighting by adding metal auxiliary lines and OLED materials. Under the ills of poor uniformity, high price, low luminous efficiency and short life, it is expected to reach trial production in the second quarter of 2012.
In order to eliminate the defect of uniformity of OLED illumination, it is considered that the cost of the diffusion film is higher and the uniformity is less than that of the metal auxiliary line. Therefore, the OLED lighting manufacturers including Huaying mainly improve the OLED illumination by adding metal auxiliary lines. Uniformity.
However, Huang Yanyu pointed out that the matching of metal auxiliary wires will lead to a decrease in aperture ratio, so it is necessary to try to reduce the indium tin oxide (ITO) resistance value, and it is necessary to reduce the metal auxiliary line and ITO width, thickness, and try different metal auxiliary line patterns, such as A well shape, a hexagon, etc., thereby increasing the aperture ratio of the OLED illumination.
It is understood that Huaying has developed metal auxiliary wires and ITO with a width and thickness of only 3 microns; and first introduced the product design as a metal auxiliary wire pattern with a simpler shape.
It is also worth noting that in order to reduce the thickness of ITO, it must be realized by adjusting process parameters such as gas flow rate, temperature, pressure, and the like. However, as the thickness of ITO becomes thinner and the transmittance increases, the impedance value will increase. Therefore, how to achieve balance will be a key issue. Huang Yanyu mentioned that after continuous testing, Huaying has now mastered a balanced solution. Light uniformity of OLED illumination can be achieved.
In addition to light uniformity, OLED lighting is the most criticized by the cost of too expensive, low luminous efficiency and short life, which is closely related to OLED lighting materials.
In fact, the price of OLED lighting is too high, the main reason is that the cost of OLED lighting materials is high, coupled with the failure of the mainstream evaporation process efficiency, so the material utilization rate is not high, and thus the production cost of OLED lighting is raised. In addition, OLED lighting materials are also the cause of life. In view of this, Huang Yanyu revealed that Huaying has been in close contact with UDC, Chuguang Xingye, Yan Lei and other US and Japanese materials companies to grasp the latest trends of OLED lighting materials to accelerate the realization of OLED lighting mass production targets.
Compared with traditional light source and LED lighting, OLED has many advantages. It not only has the function of adjusting different currents to achieve dimming and changing color, but also has the opportunity to realize soft OLED illumination and realize the plasticity of illumination source, especially suitable for special niche. The market, so Samsung, Osram Opto Semiconductors (OSRAM Opto Semiconductors), Chi Mei, AUO and other large manufacturers are also eager to try this market.
In addition, the planar light source characteristics of OLEDs, in addition to suitable for various types of luminaire design, the heat dissipation performance is also better, without the need to additionally install heat-dissipating components to increase the cost of the luminaire. Furthermore, OLED lamps do not need to be equipped with a light guide plate to control the scattering angle of the light source, so the light utilization efficiency is better than that of the LED lamp, which can meet various advanced indoor lighting design schemes, and make the lamp design more creative and overcome the environment. limit.
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