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AMOLED screen has always been Samsung's most proud display technology. Since the release of Galaxy S1 mobile phone in 2010, Samsung's flagship model has been using AMOLED display, and recently brought ultra-high resolution AMOLED screen to the flagship tablet. on the computer. However, the reporter recently learned that domestic panel manufacturers have also achieved breakthroughs in AMOLED technology, mass production is expected to start at the end of this year, 2016 will have a number of production lines in the country to achieve mass production. In the next few years, with the successive production of domestic AMOLED production lines, AMOLED displays will appear on more and more domestic mobile phones.
Mass production lines before 2016
Before 2016, there will be several AMOLED related production lines in China.
Compared with the traditional TFT LCD mobile phone screen, AMOLED screen has the advantages of fast response, self-illumination, bright color, excellent display effect and lower energy consumption, and has extremely promising application prospects on the screen of mobile phones.
According to Jane Jilong, head of Heguang Optoelectronics, AMOLED's screen has more vivid colors (1.5 times color saturation on LCD), faster response (50 times LCD) and higher contrast (100 times LCD) than LCD. ), a wider range of angles, more energy-saving, thinner, lighter weight and other advantages. In addition, because AMOLED has higher contrast ratio than LCD technology, it can provide higher perceived brightness and clearer picture quality at low brightness, so people can reduce display brightness and avoid strong light band when used indoors. Visual fatigue and injury.
As an emerging technology in the display field, the mass production of AMOLED has just started in China. Professor Zhang Jianhua, Secretary-General of Shanghai OLED Industry Alliance and Director of Shanghai Flat Panel Display Engineering Technology Research Center, told China Electronics News that South Korea is in a leading position in AMOLED panel technology. Japanese companies are leading in equipment and materials, China and Taiwan. The company started relatively late. However, the next step in the small-size market of AMOLED, mainland Chinese manufacturers are ushered in tremendous development opportunities.
Recently, DIGITIMES announced the development of AMOLED production lines in mainland China. The report shows that there will be 10 AMOLED-related production lines in the mainland before 2016. Among them, BOE (Ordos) 5.5 generation line, BOE (Hefei) 8.5 generation line, Tianma (Xiamen) 5.5 generation line, Hehui (Shanghai) 4.5 generation line, Xinyang blue 4.5 generation line, Kunshan Guoxian 5.5 generation line will be Mass production will be realized before the end of 2014. BOE (Chongqing) 8.5-generation line, Tianma (Shanghai) 5.5-generation line and Foshan Rainbow 4.5-generation line will be mass-produced in 2015, while Huaxing Optoelectronics (Wuhan) 6-generation line will also be in production. Mass production was achieved in 2016. However, some insiders believe that it is still to be observed whether the above 10 production lines can truly achieve mass production.
On March 12 this year, Hehui Optoelectronics' 4.5-generation AMOLED line illuminates the first 5.5-inch and 6-inch AMOLED panel samples in China. Sun Hui, the strategic planning department of Hehui Optoelectronics, told the China Electronics News that by the fourth quarter of this year, 5-inch, 5.5-inch and 6-inch high-definition AMOLED displays are expected to be fully mass-produced, with a planned production capacity of 1.5 per month. Ten thousand substrates. From the current contact with a number of domestic mobile phone brands, downstream manufacturers generally have full confidence in the future market potential of AMOLED screens.
The launch and commissioning of domestic AMOLED production lines will bring new development opportunities for downstream mobile phone and tablet manufacturers. According to relevant data, in the first half of 2014, the shipment of mobile phone panels in mainland China was nearly 300 million pieces, and the shipments of HD/FHD smart phone panels showed double-digit growth. According to Displaybank's forecast, by 2016, AMOLED's market share in the global smartphone and tablet market will reach 30% and 13% respectively, and the growth is very strong.
Cost will be lower than LCD within 2 years
If the yield of AMOLED can be increased to 90%, the manufacturing cost will be equal to or even lower than LCD.
In fact, as a kind of OLED technology, AMOLED technology has been developed for many years, and the theoretical cost price is also lower than that of TFT LCD. However, due to production technology and production issues, the cost price of AMOLED screens has always been more expensive than LCD screens. Related data shows that the manufacturing price of AMOLED screens is 10% to 20% higher than the price of LCD panels.
Zhang Bing, director of research at NPD DisplaySearch, told the China Electronics News that the current cost of AMOLED screens is high because the industry is not large enough. At present, only Samsung has achieved mass production, and the upstream material suppliers participating in the market have presented an oligopoly situation. Many equipment manufacturers have also signed confidentiality agreements with Samsung, which has led to high cost of raw materials and major technologies. "Because AMOLED is a revolutionary technology, unlike the simple upgrade of LCD technology, there are many technical obstacles and cost issues involved. In the end, it is because the industry is not mature enough." Zhang Bing said.
However, in Zhang Bing's view, with the addition of more mainland Chinese manufacturers, the construction of the AMOLED industry chain will be more complete, the technology will be more mature, the yield rate will gradually increase, and the future cost is lower than LCD is only a matter of time. "From the technology itself, the structure of AMOLED is simpler, because it has no backlight, no need to use optical film, etc. So in theory, the ultimate cost of AMOLED will be much lower than LCD." Zhang Bing said.
According to the latest data from DisplaySearch, if the yield of AMOLED can be increased to 90% in the next two years, its manufacturing cost will be equal to or even lower than that of LCD.
Zhang Jianhua believes that the biggest bottleneck in the development of AMOLED industry occurred around 2009. At that time, the industry was skeptical about the prospects of AMOLED industrialization, and most of the waiters. Now the prospects for industrialization have gradually become clear, and mainland China is also bold and comprehensive. The biggest challenge facing domestic manufacturers at this stage is to make products that consumers can recognize and pay for, in order to ultimately reduce costs and expand into larger markets.
Zhang Jianhua told reporters that in the next few years, AMOLED technology will coexist with LCD technology and form a counterbalance. "The flexible screen will be a different technology to break the existing pattern, because the LCD can not be used as a flexible screen, only AMOLED can do. The flexible, foldable flexible AMOLED display will be a disruptive product once it is mass-produced. â€
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