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Surface liquid is present technical barriers <br> <br> surface process liquid crystal panel, there are many technical challenges, but introducing thin glass substrate can also achieve the effect of surface.
After the spherical design of the CRT, to the era of LCD, color TV began to popular the beauty of the plane. For more than a decade, the design of LCD TVs has been dominated by planes, and such designs have gradually become entrenched in the minds of consumers. In 2013, the appearance of curved LCD TVs subverted the design of traditional TVs, and curved LCD screens are truly impressive.
In fact, it is not easy to realize surface design for LCD screens. Zhu Changchang, deputy chief engineer of TCL Industry Research Institute, told the reporter: “The difficulty in producing curved LCD screens is that glass and backlight are not easy to bend. Because the glass is thin, it is difficult to achieve bending. If the LCD screen is not bent very much, And the size of the TV is suitable, so the light source bending can also be achieved. However, TCL has not yet made plans for curved LCD screens."
All along, the LCD TV screens have adopted a flat design, mainly because the technical threshold is relatively high. In addition to the problems of glass and backlight, the image quality at the edges of the curved LCD screen is distorted due to the mismatch between the TFT and the color filter pixels, causing a problem of viewing angle. In addition, polarizer attachment and FPCB (Flexible Printed Circuit Board) also require the development of new engineering technologies. Although there are many technical challenges, but the introduction of ultra-thin glass substrates, LCD panels can also achieve the effect of the surface.
In recent years, panel companies have conducted a lot of research and development in the field of curved liquid crystals. Among them, AUO and Samsung have already produced curved-surface LCD panels and have conducted close cooperation with Sony and Changhong. This reporter learned that Sony has been listed on the curved LCD TV screen mainly from AUO, Sony's new 65-inch TV also uses AUO 100% color gamut 4K surface LCD panel; and Changhong curved TV screen is provided by AUO and Samsung. In addition to LCD panel makers, upstream supporting companies are also constantly developing new technologies. In June last year, Corning had provided bendable glass samples to mobile phone, tablet PC and television production. AUO's general manager Peng Shuanglang stated that curved TVs are more ergonomically designed, so AUO will pursue the victory and launch a new generation in 2014. Wide color gamut, large size 4K×2K curved panel.
LCD cope with the challenges <br> <br> OLED TV manufacturers has been very actively launched surface LCD TV, OLED TV to a higher and lower, to extend the life of liquid crystal. Compared to liquid crystals, OLEDs have inherent advantages in bendability. Since the OLED is a self-luminous panel, it does not require an additional backlight component as the light source, so that it is better able to form a curved shape in its structural design. In 2013, Samsung and LG introduced OLED TVs with curved surfaces.
In Zhu Changchang's view, the reason why color TV manufacturers are actively launching curved LCD TVs is to compete with OLED TVs and prove to the industry that OLED's products can do the same with LCD to prolong the life of LCDs.
In recent years, the replacement of liquid crystals and OLEDs has become the focus. At the beginning of 2013, OLED TVs were difficult to mass-produce, and LCDs seized the opportunity to vigorously develop 4K technologies, presenting severe challenges to large-size OLEDs. In September, Samsung and LG launched OLED TVs with curved design as a selling point, and LCDs were not to be outdone. Sony and Changhong launched curved LCD TVs in an attempt to seize the market that originally belonged to OLED TVs.
Xu Ming, general manager of Changhong Multimedia Industry Co., Ltd., said in an interview: “Surface OLEDs from South Korea’s Samsung and LG are too expensive, and LCD TVs can achieve bending effects, but there are still some details that need to be improved for commercialization.â€
However, according to Hong Zhen, director of the TCL Semiconductor Light Source Research Institute, OLEDs have relatively high initial costs and yields are too low. Mass production of OLED panels is also relatively small, and LCD technology is quite mature. If OLEDs are pushed to the market by plane, Can not compete with LCD TVs. Therefore, OLED TVs are first introduced to the market with curved design. However, surface design is not conducive to improving TV performance. When OLED technology matures, the competition of TV will return to the plane.
Development of the market faces an uncertain future <br> <br> surface TV whether it is short-lived or lead the consumer trend, the industry vary. New technologies emerge endlessly and are highly anticipated by the industry. The surface LCD TV facing many bottlenecks, can really shoulder the responsibilities of challenging OLED? Reporter learned in the interview, the current industry is not the same as the curved LCD TV, the future development prospects still need to be tested in the market.
Gao Hongjin, a professor at Tsinghua University, told reporters: “Curved surfaces are not the strengths of LCDs, and their production efficiency is not high. Moreover, the curved OLED TVs of Samsung and LG are also exploring the market. Compared to curved LCD TVs, I am more optimistic about the development of 4K. For the future, I'm still in doubt as to whether curved TV can become popular."
Hong Zhen also made it clear: “After discussion by the expert group, we do not recommend manufacturers to promote curved LCD TVs.†However, for the development of curved LCD TVs, terminal manufacturers seem to be more active. Xu Ming told reporters that curved LCD TVs will be a hot spot in the color TV market next year, and Changhong will mass-produce curved smart TVs in the fourth quarter of this year, keeping up with technological hot spots.
Zhang Bing, director of market research at DisplaySearch, said in an interview with reporters: “The curved LCD TVs are in demand from the market segment. The larger the size, the better the visual effect. Therefore, the curved LCD TVs should be developed from large sizes. However, the curved LCD TVs have certain Problems such as being unsuitable for hanging on a wall, etc., need to be verified by the market.â€
For the development prospects of curved LCD TVs, Zhang Bing also said that curved TV has a good marketing point and is expected to follow up with many panel makers next year. It is estimated that Samsung's curved TV shipments will reach 2 million units next year, and Sony will have hundreds of thousands of shipments. At CES 2014, there will be many companies exhibiting curved TVs to lead new consumer trends. 
Star and LG's OLED TVs have attracted attention in the industry with surface design. It is precisely this kind of surface design that has always been the "soft underbelly" of LCD. In recent years, the topic of OLED replacement for liquid crystals has been heard. In order to extend the life span, the LCD has also launched a Jedi counterattack. Recently, after Sony successfully mass-produced curved LCD TVs, Changhong also announced that it will mass-produce the first domestic curved LCD TVs in the fourth quarter in an attempt to make a difference in the field of curved LCD TVs. However, from an objective point of view, surface design is not the strength of LCD. Can curved LCD TVs break the barriers and shoulder the heavy responsibility of OLED?