UHD is gradually popularized
“The panel is the display component of the TV core. In 2013, the most noteworthy thing is that the display effect has been improved. At present, all panel manufacturers have overcome display technologies such as LED, 3D and multiplier. The next step is to develop ultra-HD and Wide color gamut technology." Liu Wei, general manager of Avi Consulting (AVC) Flat Panel Display Division.
As a technology that consumers can intuitively feel, the UHD panel will not be the product that the panel companies will rush to launch in the second half of 2013. Regardless of the Japanese and Korean panel makers, or the domestic panel companies, they have a strong interest in ultra-high-definition panels.
According to the reporter's observation, since UHD technology can be compatible with other technologies, each panel manufacturer has tried to apply other technologies based on UHD technology to improve the added value of products, such as large size, high resolution, 3D and ultra narrow. Borders, etc.
LG Display, a Korean company that is leading the way in large-size panel technology, became the first company in the world to mass-produce 84-inch UHD TV panels in 2012, and began mass production of 65-inch and 55-inch UHD panels in the second quarter of 2013. It is understood that LG Display's ultra-high-definition UHD panel not only increases the resolution to 3840 × 2160 pixels, but also applies IPS technology and non-flash 3D technology. On large-screen TVs, UHD is more capable of showing clarity, and viewing angles are even more important. LG Display's IPS technology provides a wide viewing angle, allowing users to enjoy clear, delicate and natural images from any angle. According to Li Tinghan, vice president of global product promotion of LG Display, LG Display is preparing to expand the UHD product line, extending the ultra-high-definition product line to common products, and preparing to develop high-quality ordinary products that are completely different from the low-end ultra-high-definition products on the market. For example, 55-inch, 49-inch, 42-inch ordinary products to meet the various needs of customers. "LG Display will also introduce 98-inch, 84-inch, 79-inch ultra-large ultra-high-definition products and 105-inch, 65-inch, 55-inch, 49-inch curved ultra-high-end high-end products based on the existing LCD UHD products. High-end UHD market development. In 2014, LG Display plans to expand the sales ratio of large ultra-high-definition products above 55 inches to 20%, all of which need to be completed by further strengthening product competitiveness."
In 2013, panel companies in Taiwan performed outstandingly in the UHD field. AUO has introduced a new generation of wide color gamut 55-inch and 65-inch UHD ultra-high resolution LCD TV panels. Although it is not as good as Korean companies in terms of large-size technology, AUO has deepened UHD technology to increase the color saturation of UHD panels to 100%; through Wide Color Gamut (WCG) with 120Hz multipliers to influence drive technology, Presents a 3D-like viewing effect. For high-end TV applications, Innolux launches a 65-inch 3D TV panel that delivers high resolution, high color saturation, and high dynamic quality.
In the Chinese mainland market, UHD has become synonymous with high resolution. In order to increase its voice in the UHD field, BOE launched the 110-inch UHD panel in 2013, which refreshed the largest size of the UHD panel. According to reports, the product integrates the high-end technology of many large-size panels, including large-size panel splicing exposure technology, large-scale advanced process technology, high frame rate panel design technology, large-size splicing mirror synchronous scanning technology, 120Hz high-frequency drive Technology and local dynamic backlight technology. Just after entering the LCD panel industry, Huaxing Optoelectronics successfully launched the 55-inch UHD product in April 2013. The product uses ultra-narrow bezel design technology to narrow the frame to 5.0mm.
Entering 2014, the price of UHD panels will be more intimate, but like all emerging industries, there are some problems in the UHD panel industry. Zhang Liang, manager of product development department of BOE Technology Group Co., Ltd. pointed out that at present, the content of ultra high definition TV programs that users can watch is less. In addition, the yield of UHD panels is still not high, and UHD TVs lack standard specifications. “Overall, the UHD-related industry chain is still not perfect in China, and it still needs a certain market incubation period.â€
OLED forward resistance
In the process of the transformation of the new generation of display technology, OLED is generally considered to be a flat panel display technology superior to LCD. Compared with LCD display technology, OLED display technology has many advantages, such as its own illumination, no backlight, etc. Therefore, O LED display can be made lighter and thinner. OLED is also a flexible display technology that can be made into curved panels, which has attracted much attention because it can bring more space for product design and application.
In terms of OLED display technology, there are two main technologies, RGB OLED and WRGB OLED. Among them, the panel pixels of the RGB OLED technology are composed of three primary colors of red, green, and blue, and the WRGB OLED technology adds a white spot on the basis of RGB.
LG Display uses WRGB OLED technology. This technology vertically gathers red, green and blue diodes. The diode emits white light, and the screen information is displayed through the color layer under the TFT base. Since there is no interference color risk, the error rate is reduced, the production efficiency is improved, and the advantage of small pixels can be utilized to create a clearer ultra clear display. To further promote the development of flexible display technology, LG Display has developed Mask technology to improve resolution, Encapsulation technology to achieve minimum curvature, and large attachment technology. "LG Display will further strengthen cooperation with sister companies such as LG Electronics and LG Chem to further enhance product value." Li Tinghan told reporters.
Samsung Display uses traditional RGB three-color light technology. It is understood that Samsung Display has certain advantages in the small OLED panel market, but there are still some shortcomings in the core technology incap (preventing moisture penetration) in the large OLED TV market. In addition, in order to consolidate its authority in the field of OLED, Samsung Display expects to increase the production of OLED panels by 33% in 2014.
In order to shorten the gap with foreign companies, China's panel companies have also begun to develop OLED panels that represent advanced display technologies. In November 2013, BOE's 5.5-generation AMOLED production line was put into production, but the products were limited to small OLED panels, and it is not yet possible to produce OLED panels for large-size TVs. According to the reporter, Huaxing Optoelectronics will launch the second 8.5-generation TFT-LCD production line, which will also introduce OLED technology.
AUO and Innolux in Taiwan are clearly behind in OLED panel technology. It is understood that a company in Taiwan is developing OLED panels by hiring Japanese panel companies.
Excessive prices have increased the difficulty of marketing OLED panels. At present, the price of OLED TVs on the market exceeds 1 million yen, resulting in poor market sales.
During the interview, the reporter found that the yield rate is still the biggest problem in the production of OLED panels, and it is also one of the reasons for the high price of OLED panels. Due to the level of technology, the yield of OLED panels is very low, and it is not easy to solve in the short term. “The low yield, low finished product, high price and low market acceptance have become the biggest reasons for restricting the development of OLED panels.†An industry insider who did not want to be named said frankly.
“In 2013, although OLED TV made some progress in improving the yield and process level, it is still far from enough. Because the overall yield is still low, the cost of OLED panels is still high. The low yield rate makes OLED panels It is difficult to achieve mass production and commercialization, and the annual sales volume is only a few thousand. Therefore, OLED TV is still 'high and low'," said Zhang Bing, director of DisplaySearch.
While recognizing that OLED will become the future development trend of flat panel TV technology, Zhang Liang pointed out that the power consumption of OLED panels is not as good as that of LCD panels.
Therefore, at present, TFT-LCD technology is still the mainstream of the TV panel market in the short term.
"Two keywords UHD and OLED will be integrated into the different categories of panel technology." Li Tinghan told reporters that UHD is one of the resolution development processes of TV, from SD, HD, FHD to UHD; OLED refers to display One of the development processes, from CRT, PDP, LCD to OLED. "LG Display is currently working to introduce OLED and LCD into the ultra-high-definition era at the same time." At the world's largest consumer electronics show CES 2014, LG Display CEO Han Xiangfan announced that "LG Display will fully promote UHD ultra-high-definition resolution technology, leading OLEDs. A new round of technology upgrades with the LCD TV market."
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