Millet TV 2 is "false 4K"? Millet TV 2 is a scam? Millet TV 2 is one of the most popular 4K TVs at present, and the price is only 3,999 yuan, which makes many friends who are interested in 4K TV are very happy. However, at the beginning of the listing of Xiaomi TV 2, it was stuck in the “quality doorâ€. The suspected use of a fake 4K screen, so how cheap can the pricing, in the end millet TV 2 official explanation for this, and now friends can boldly buy millet TV 2?
Millet TV 2 officially released
On May 15th, Xiaomi Company held a new product conference at the National Convention Center and grandly released the 2nd generation of Xiaomi TV. It was equipped with a 49-inch LG/Huaxing Opto-electronics 4K ultra-high-definition 3D panel, equipped with an independent audio system, priced at RMB 3,999.
Netizens questioned whether millet TV 2 is fake 4K
Some netizens pointed out that the 4K screen advertised by Xiaomi TV was actually a “fake 4K,†but it was a high-definition 1080p screen. The user first denied the possibility of using a 4K screen for the 2nd generation of millet TVs from the panel price. Currently, 49-inch panels come in three sizes: RGB 1080p, RGBW + Half Cut 1080p, and RGB 4K. One RGBW + Half Cut 1080p can be used to do fake 4k.
Netizens give evidence that millet TV 2 is false 4K
China's 4K standard has loopholes, only marked with a resolution of 38,402,160 is regarded as 4K, so there is now a more shameless phenomenon, that is, many domestic manufacturers, the RGBW + half-pixel technology 1080p as 4K to sell. The actual physical resolution of the "fake 4K" panel is; but the problem is that this is a half-pixel panel, not two pixels, so in fact the only real physical pixel is.
According to this level of millet, this price does not cost RGB 4K at all. And LG has no 49-inch low-end RGB 4K panel for export.
Because it borrowed from the YUV video specification, RGB tri-color pixels, the synthesis of a brightness channel pixel, W, is itself a brightness channel pixel, this panel's theoretical brightness channel resolution is, of course, according to the domestic half-pixel is pixel The public opinion is the brightness channel resolution of, which is in full compliance with the so-called 4K specification in China.
However, for color panels, only RGB is a valid color pixel, so this panel is still. Domestic pseudo 4k TV panels from the driver board to the module, corresponding to the vertical cable only 1080, rather than 2160.
This kind of pseudo 4K using 1080p of RGBW+Half Cut is similar to the Bayer-pattern sensor's method of compensating the near-color compensation value. The brightness resolution of this panel can reach 38,402,160, and the effective color resolution is only 1920, 1080, but there is a W separation between the two RGB matrices, so this W successfully uses the characteristics of human eyes from the left and right pixels. In the "borrowed" to the color. Then count the so-called "half pixels are pixels", to the human eye, the so-called "physical pixels have become", but the actual effective resolution is only.
This "false 4K", calculated in terms of physical resolution, is actually a fine-grained version of the RGB 1080p panel, which is also an improved version of the performance. This "false 4K" panel, which itself has the biggest advantages over RGB, is that the dynamic response time of weaker colors is faster, and the detailed expression of weak colors can be enhanced. Of course, this technology is aimed at liquid crystals that have a light effect, and is not very useful for self-luminous devices. It even has side effects and has a serious negative effect. And for LCDs, the advantages will only be realized when using color enhancement circuits.
The current LCD panel driver, as well as the input signal, is RGB. This uses the color grading method, which is the RGB trichromatic mixing method.
The other method, directly using YUV for direct output, is the color enhancement method. The color enhancement method is actually easy to understand. Open the ps software to see the color sampling inside. There are separate parameters for grayscale and color. The color enhancement method is to extract the Y channel signal, display the luminance channel to the W pixel, and then use YUV 2 RGB - (minus) Y to compile the RGB hyperchromic signal output into the RGB pixel to give grayscale coloration.
This method has not yet been realized. It is only theoretical. Because here must rely on multiple "bright color separation", "color compensation", the software processing complexity is slightly larger, and RGBW only improve the liquid crystal, for the three primary colors self-luminous kind of OLED, there is no much effect, but it is prone to side effects.
For the LCD, the grayscale change can be a single change in the RGBW, rather than a change in the RGB three-color pixels, undoubtedly reducing the dynamic response time of grayscale and weak colors. But also can enhance the details of the weak color by the color increase method, reduce the impact of the LCD light effects. Although it is difficult to achieve, it is still a good technique that is feasible.
Millet TV official response
According to Xiaomi, Xiaomi TV 2 uses high-quality 4K screens from LG and Huaxing Optoelectronics, which is four times the resolution of the previous generation of 1080p. The LG OC model used by the millet TV 2 generation is the LC490EQJ-SGK1. The display has a pixel size of 0.279630.27963mm, a display area size of 1073.78604.00mm, and a physical resolution ofRGB.
At the same time, in order to prove more definitively, Xiaomi used a magnifying glass to actually display a 2 pixel arrangement of millet televisions to display photos, and the pixels were arranged in RGB, RGB, and RGB. Instead of the so-called "pseudo 4K" RGBW arrangement. Xiaomi said that users are welcome to verify after the product is on the market.
LG said that fake 4K is not fake and is different
For the fake 4K statement, the panel maker actually does not recognize, LG Display believes that in China's applicable 4K certification specifications, RGBW 4K panel resolution meets both horizontal and vertical requirements of the 2160 TV line, but also in line with the international certification body Intertek The 4K certification standard, so the RGBW 4K panel is a differentiated 4K display technology. This is just like wearing a QJ QJ is not the same reason!
Zhang Yu, vice president of BOE, also said that this is just a 4K display technology for companies to reduce costs. As a partner of LG Display, Skyworth is also behind LG Display's RGBW technology. Skyworth Group spokesperson Li Congxiang believes that RGBW panel is not a fake 4K panel. Instead, LG Display is launching a 4K TV to reduce the cost. new technology.
An industry insider who is close to Samsun Display stated that Samsung is also producing RGBW 4K panels, but he has not used them and he has supplied them to some domestic manufacturers. As for who sold it, it is certainly not possible to say because of confidentiality agreements. Yang Jingping revealed that Skyworth, Konka and Changhong will adopt RGBW 4K panels, and will begin mass production in the second quarter of 2014.
Millet TV 2 is fake 4K or true 4K, authoritative certification?
Millet TV 2nd Generation 4K Certification:
Millet TV 2 officially released
On May 15th, Xiaomi Company held a new product conference at the National Convention Center and grandly released the 2nd generation of Xiaomi TV. It was equipped with a 49-inch LG/Huaxing Opto-electronics 4K ultra-high-definition 3D panel, equipped with an independent audio system, priced at RMB 3,999.
Netizens questioned whether millet TV 2 is fake 4K
Some netizens pointed out that the 4K screen advertised by Xiaomi TV was actually a “fake 4K,†but it was a high-definition 1080p screen. The user first denied the possibility of using a 4K screen for the 2nd generation of millet TVs from the panel price. Currently, 49-inch panels come in three sizes: RGB 1080p, RGBW + Half Cut 1080p, and RGB 4K. One RGBW + Half Cut 1080p can be used to do fake 4k.
Netizens give evidence that millet TV 2 is false 4K
China's 4K standard has loopholes, only marked with a resolution of 38,402,160 is regarded as 4K, so there is now a more shameless phenomenon, that is, many domestic manufacturers, the RGBW + half-pixel technology 1080p as 4K to sell. The actual physical resolution of the "fake 4K" panel is; but the problem is that this is a half-pixel panel, not two pixels, so in fact the only real physical pixel is.
According to this level of millet, this price does not cost RGB 4K at all. And LG has no 49-inch low-end RGB 4K panel for export.
Because it borrowed from the YUV video specification, RGB tri-color pixels, the synthesis of a brightness channel pixel, W, is itself a brightness channel pixel, this panel's theoretical brightness channel resolution is, of course, according to the domestic half-pixel is pixel The public opinion is the brightness channel resolution of, which is in full compliance with the so-called 4K specification in China.
However, for color panels, only RGB is a valid color pixel, so this panel is still. Domestic pseudo 4k TV panels from the driver board to the module, corresponding to the vertical cable only 1080, rather than 2160.
This kind of pseudo 4K using 1080p of RGBW+Half Cut is similar to the Bayer-pattern sensor's method of compensating the near-color compensation value. The brightness resolution of this panel can reach 38,402,160, and the effective color resolution is only 1920, 1080, but there is a W separation between the two RGB matrices, so this W successfully uses the characteristics of human eyes from the left and right pixels. In the "borrowed" to the color. Then count the so-called "half pixels are pixels", to the human eye, the so-called "physical pixels have become", but the actual effective resolution is only.
This "false 4K", calculated in terms of physical resolution, is actually a fine-grained version of the RGB 1080p panel, which is also an improved version of the performance. This "false 4K" panel, which itself has the biggest advantages over RGB, is that the dynamic response time of weaker colors is faster, and the detailed expression of weak colors can be enhanced. Of course, this technology is aimed at liquid crystals that have a light effect, and is not very useful for self-luminous devices. It even has side effects and has a serious negative effect. And for LCDs, the advantages will only be realized when using color enhancement circuits.
The current LCD panel driver, as well as the input signal, is RGB. This uses the color grading method, which is the RGB trichromatic mixing method.
The other method, directly using YUV for direct output, is the color enhancement method. The color enhancement method is actually easy to understand. Open the ps software to see the color sampling inside. There are separate parameters for grayscale and color. The color enhancement method is to extract the Y channel signal, display the luminance channel to the W pixel, and then use YUV 2 RGB - (minus) Y to compile the RGB hyperchromic signal output into the RGB pixel to give grayscale coloration.
This method has not yet been realized. It is only theoretical. Because here must rely on multiple "bright color separation", "color compensation", the software processing complexity is slightly larger, and RGBW only improve the liquid crystal, for the three primary colors self-luminous kind of OLED, there is no much effect, but it is prone to side effects.
For the LCD, the grayscale change can be a single change in the RGBW, rather than a change in the RGB three-color pixels, undoubtedly reducing the dynamic response time of grayscale and weak colors. But also can enhance the details of the weak color by the color increase method, reduce the impact of the LCD light effects. Although it is difficult to achieve, it is still a good technique that is feasible.
Millet TV official response
According to Xiaomi, Xiaomi TV 2 uses high-quality 4K screens from LG and Huaxing Optoelectronics, which is four times the resolution of the previous generation of 1080p. The LG OC model used by the millet TV 2 generation is the LC490EQJ-SGK1. The display has a pixel size of 0.279630.27963mm, a display area size of 1073.78604.00mm, and a physical resolution ofRGB.
At the same time, in order to prove more definitively, Xiaomi used a magnifying glass to actually display a 2 pixel arrangement of millet televisions to display photos, and the pixels were arranged in RGB, RGB, and RGB. Instead of the so-called "pseudo 4K" RGBW arrangement. Xiaomi said that users are welcome to verify after the product is on the market.
LG said that fake 4K is not fake and is different
For the fake 4K statement, the panel maker actually does not recognize, LG Display believes that in China's applicable 4K certification specifications, RGBW 4K panel resolution meets both horizontal and vertical requirements of the 2160 TV line, but also in line with the international certification body Intertek The 4K certification standard, so the RGBW 4K panel is a differentiated 4K display technology. This is just like wearing a QJ QJ is not the same reason!
Zhang Yu, vice president of BOE, also said that this is just a 4K display technology for companies to reduce costs. As a partner of LG Display, Skyworth is also behind LG Display's RGBW technology. Skyworth Group spokesperson Li Congxiang believes that RGBW panel is not a fake 4K panel. Instead, LG Display is launching a 4K TV to reduce the cost. new technology.
An industry insider who is close to Samsun Display stated that Samsung is also producing RGBW 4K panels, but he has not used them and he has supplied them to some domestic manufacturers. As for who sold it, it is certainly not possible to say because of confidentiality agreements. Yang Jingping revealed that Skyworth, Konka and Changhong will adopt RGBW 4K panels, and will begin mass production in the second quarter of 2014.
Millet TV 2 is fake 4K or true 4K, authoritative certification?
Millet TV 2nd Generation 4K Certification: