In 2017, HDR became the "new darling" of major manufacturers. Almost all mainstream models of smart TV products are equipped with HDR quality technology, which has become a new marketing topic for major merchants. What is the use of HDR quality technology on TVs? Is it worth buying? The following Xiao Bian talked with everyone. [HDR technology why fire? 】 First of all, to understand what is HDR technology, I believe many users in the photography process, found that the phone has HDR option, when you turn on HDR function, the phone can take multiple photos under different exposures, and then merge these pictures, The resulting picture can be highlighted both in detail and in dark detail. This is the principle of HDR's image processing technology (ie highlights and details in the dark, giving a richer shade of light). What is the use of HDR in TV? 】 For HDR in TV, it refers to a decoding standard. The mainstream HDR standards currently deployed on TV are divided into HDR10 and Dolby Vision (HDR10 is more widely used). At present, there are no advantages or disadvantages between the two HDR standards, but they are not compatible with each other. This means that when HDR Dolby Vision standard video is played on a HDTV-supported smart TV, it will not be able to show its beautiful image quality. [The advantages and disadvantages of HDR TV] advantage: HDR TVs can display more colors than high-end 4K TVs. This is because HDR TV color space and color depth are far better than traditional TV. Therefore, the details of the HDR TV in the bright/dark part are more obvious, the overall color performance is more prominent, and the overall color of the picture is more even. However, in order to achieve HDR image quality, TV's CPU and image processor need to reach certain specifications to ensure smooth image rendering. This is why most flagship high-end models will use HDR technology. Disadvantages: The operating mechanism of HDR is to make the screen display richer colors by significantly increasing the contrast of the screen. This is mainly achieved by increasing the brightness of the screen backplane. The screen brightness must exceed 1000 nits. For an OLED panel, the brightness must be at least 540 nits. This means that long-term viewing, HDR TV is more likely to cause visual fatigue than regular TV. There is currently no video site in the country providing HDR content (it is said that LeTV will soon be available). There are very few 4K Blu-ray discs that can be purchased. Another factor restricting the popularity of 4K HDR content is piracy, not piracy, but 4K Blu-ray Discs. The HDCP2.2 used has not been widely cracked yet, so there is almost no piracy. (The final source of HDR content is the game. Currently, some games on the Xbox One S and PS4 have started to support HDR.) HDR content is hard to find in China, and the hardware level is generally not in compliance with HDR standards. Therefore, at this time point, HDR is not enough to influence the purchase decision. Smart TV/box information can focus on smart TV information network sofa butler (http://), China's influential TV box and smart TV website, providing information, communication, TV boxes, smart TVs, smart TV software, etc. Answering questions.