Want to buy a curved TV? You need to understand these 4 issues first
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Due to the rapid development of television technology in recent years, many people may be in the cloud of curved TV. Since the release of the first surface television in 2013, the curved surface television has also experienced the development and transformation of large and small scales for several years. At present, although curved TV is still a niche product, it also represents a direction and trend of TV's future development. Let’s take a look at what issues should be paid attention to when buying curved TVs.
What is a curved TV?
Curved TV, as its name suggests, refers to a television with a certain curvature and a certain curvature. Similarly, curved computer monitors are already on the market. The principle is mainly the use of flexible or flexible screen, using the curvature of human eyeballs, thus creating a different sense of presence and sense of being surrounded with traditional television. 
What are the types of curved TV?
When it comes to the classification of surface television, according to its display technology, it can be mainly divided into LCD, OLED, ULED and so on. The author will introduce them separately.
1, LCD (Liquid-Crystal Display): the liquid crystal display technology, is the mainstream display technology for televisions and computer monitors in recent years, the principle is mainly through the application of voltage, so that light flows along the liquid crystal molecules, resulting in light effects. It is an improvement and upgrade of the traditional CRT display tube display technology. TVs and displays using LCD technology are more light and thin, and the display effect is more clear and sharp. The LCD screen is a traditional LCD screen and does not have natural bending properties. It is called a "physical curved screen." Therefore, most of this type of material is used early. Nowadays, manufacturers are more inclined to choose a flexible OLED screen. 
2. OLED (Organic Light-Emitting Diode): An organic light emitting diode display technology, which is mainly distinguished from a conventional LCD. Its biggest difference from the LCD is that the OLED has self-luminous characteristics, while the LCD requires a backlight. Therefore, this material can achieve better visibility and brightness, in addition it has the advantages of power saving, ultra-thin, and light. In addition, the OLED screen is more curved than the LCD, and is considered as the "original curved screen", and thus is widely adopted by the major manufacturers as a curved television screen. Of course, OLEDs also have drawbacks. Their yield is very low, resulting in scarcity of finished products. Therefore, curved TVs produced are very expensive. 
3, ULED (Ultra Light-Emitting Diode): all known as multi-zone lighting independent control of light-emitting diodes, is the domestic company Hisense company based on LED, its technical improvements, and is widely used in home curved TV and electronic medical A display engine above the display product. It is reported that its image quality has surpassed OLED in several major tests. Its main highlight is the optimization of the backlight to make its color, brightness, etc. more natural. However, strictly speaking, ULED is more like the optimization and improvement of LED, not a disruptive innovation. 
Three things to know before buying a curved TV:
From the above three types, it can be found that there are certain differences between different display technologies and screen materials, their technical characteristics and price positioning. So how do you choose curved TV? The author believes that this should be started from the history of curved television.
In the beginning, curved TVs were first introduced and produced by international companies. These companies included Sony, LG, Samsung, and Sharp, which were prohibitively expensive. Later, after continuous technical follow-up, domestic manufacturers have also joined the camp of curved TV, representing Skyworth, Hisense, TCL, Changhong and so on. In the past two years, with the topics of Internet +, cross-border integration and other issues being put on the agenda, some Internet companies have also combined their customized systems with curved TVs to create curved Internet TVs, such as Xiaomi and LeTV. 
Choose material or choose price?
In 2013, Sony released the world's first LED curved television at the IFA (Berlin International Consumer Electronics Show), model KDL-65S990A, using a 65-inch LCD LCD technology screen, priced at 4,000 US dollars (approximately RMB 25,858). yuan). Sony uses TRILUMIOS display technology in this product and uses a flat back frame design. In the same period, Samsung and LG released curved-surface TVs using OLED technology. Taking the KE55S9CSL released by Samsung in the same period as an example, it uses an OLED screen and sells for 9000 US dollars (about 58181 yuan). It can be seen that at that time, curved TVs with OLED screens were much more expensive than processed LED curved TVs.
However, the recent adoption of LCD technology for new products is not much, and prices are much lower than those of the original people. With the advent of new technologies such as non-border surface televisions, curved TVs have also achieved high-, mid-, and low-end product line price coverage. For example, Samsung's SUHD new technology products introduced in the past two years have adopted the latest quantum dot technology. Its image quality has surpassed OLED and covers 55-inch to 78-inch screen sizes, priced at 24,999 yuan. 
Beware of fake surfaces and false resolutions
As mentioned in the previous article, the LCD screen is a traditional LCD screen. It has no bending characteristics. Then how did it make a curved TV? Under normal circumstances, manufacturers use special techniques and processes, mainly by physically bending the screen, so that it can show a certain degree of surface curvature, commonly known as "false surface." This method is likely to cause light leakage around the screen, if the work is rough may also have a certain security risk. Such as Sony's LED curved surface television, is to join the ultra-thin glass substrate and backlight components in the LED plane, fixed it to a curved shape, and later this way was abandoned by Sony. However, it also appeared in some domestic three unbranded cheap curved TVs. Therefore, buying curved TVs now should try to avoid selecting LED surfaces.
The so-called false resolution means that the actual screen resolution of the product does not reach the company's nominal resolution. This name generally refers to the 4K resolution. Many TV products on the market all call themselves 4K TVs or UHD TVs. However, they use the subpixels of neighboring pixels to reduce the pixel value, or they do not have the same value. 4K video decoding capability. This caused the product name to be untrue and suspect. For such products, consumers should be vigilant, do not buy non-well-known brands of curved surface TV products, in order to avoid confusion. 
Screen size and viewing distance are also important
The screen sizes of mainstream curved TVs currently on the market are mostly in the 55-inch and 65-inch types. In fact, the larger the size, the better, but not too small. Because if the screen is too small, the difference between the viewing experience of the curved surface and the LCD TV will be less obvious, and if the screen is too large, the viewing distance and the size of the room are required to meet the demand. Therefore, consumers should select a suitable screen size based on the room size and viewing distance.
In general, 55-inch curved TV screen viewing distance of 2 meters to 3 meters, will maintain a good sense of presence; and 65 inches requires more than 3 meters, will feel the visual impact of the screen. However, relatively speaking, 55-inch curved TV brings people's visual experience even weaker. If conditions allow, it is recommended that consumers choose at least 65-inch curved TV. In addition, because of the modeling reasons, most curved TVs will not be hung on the wall, but will be equipped with a base. This may also have a certain impact on the perception.
What are the products worth buying now?
At present, the types and number of curved TV products on the market are already quite a few. From domestic manufacturers to international big names, they all have their own flagship products, and their product lines have also been fully covered by high schools and low schools. The author believes that according to the price difference, there are several products that are worthy of consideration by consumers.
LG 55EG9200-CA
The TV is a new product that LG launched last year. It has a flagship configuration with a 55-inch 4K resolution screen, and is designed with a slim body and equipped with a WebOS 2.0 system. In addition, it also uses OLED's self-luminous pixel technology developed by LG. This technology won several awards such as “2015 Gold Award for Color TV Technologyâ€. And in terms of 3D, the EG9200-CA uses non-flash 3D to ensure its comfortable viewing. On the whole, this product represents the most advanced OLED screen technology in Korea, and high-end users who have very high demands on the picture can consider it.
Reference price: 19,000 yuan 
Samsung UA55JS9800J/UA65JS9800J
The series is a new SUHD series released last year by Samsung. It is powered by Samsung's own Tizen operating system, has a 55-inch/65-inch LED screen, and incorporates the SUHD subtle remodeling engine on the basis of the traditional LCD screen, and has adopted the famous " "Quantum dot technology" (ie, nanocrystals) can make the picture clearer and the color control more accurate. It is worth mentioning that the series also uses Dolby sound technology. Currently, Samsung's SUHD display technology can be said to be the best competitor of OLED technology, and it is worthwhile to appreciate consumers of such products.
Reference price: 13,000 yuan (55 inches), 21,000 yuan (65 inches) 
Millet TV 3s 65 inch curved screen
The product is a new product that Xiaomi just released at the end of last month. It has a relatively low price, and all aspects of configuration are also worth noting. Its original Samsung 4K curved screen, equipped with professional TV processor Morningstar Mstar 6A928 quad-core processor, supplemented by ARM Mali-T760 GPU, 2GB + 8GB storage portfolio, and with MIUI TV version of the system. Overall, this product is very cost-effective, is currently on sale in the Xiaomi Mall spot, it should attract some consumers to pursue cost-effective purchase.
Reference price: 8999 yuan 
LeTV 4th Generation TV X55/65 curved
This series is a new product that LeTV just released on March 30 this year. It is a product of its cooperation with TCL Group's strategy. It is divided into 55-inch and 65-inch screens. Both use 4K resolution E-LED curved screen (side-entry backlight), and with EUI 5.8 version system. In addition, it features the Mstar 6A938 64-bit quad-core flagship processor and integrates the ARM Mali-T820 GPU for outstanding performance. And, it uses a 3GB+32GB memory combination with a Harman Kardon-certified stereo. From a parameter point of view, its price/performance ratio has surpassed millet TV 3s, but there is still a period of time before its May 17 launch date. Like consumers may wish to wait patiently.
Reference price: 4999 yuan (55 inches), 7999 yuan (65 inches) 
In short, the famous German philosopher Hegel once said: "Existence is reasonable." Regardless of what consumers think about curved TV, they must accept the rationality of its existence. In addition, I also believe that: "Demand decides to choose." Not everyone has to choose curved TV. There are always some people who prefer traditional LCD TVs. Consumers should rationally choose the TV type that suits their needs according to their own needs.