This article is Sony TV's new internal experience conference in March. There are some new technologies and new ideas. Because they can't take photos, Xiaobian describes as clearly as possible to give TV movie fans a detailed outline, especially for HDR 4K. The players believe that they will benefit a lot.
At the Sony TV new technology conference at the end of March, we also saw Backlight Master Drive backlight technology, which was also demonstrated at CES. Prior to Backlight Master Drive, we made a review of HDR. Everyone should already know about HDR. First of all, I see such a picture. The quality of the video is basically divided into five important elements: resolution, color depth (grayscale), frame rate, and color space. These are familiar to everyone and are now developing very quickly. From 2K to 4K or even 8K, from 8 bits to 10 bits or even 12 bits, from the original SRGB to the DCI of the movie and to the current latest BT.2020 range, the number of frames from the original 24 to 60I to 60P, even The future 120P. These developments are very fast and have reached a very high standard.
Today we have to say another - brightness dynamic range, this may not know much before. Because this standard is basically the SDR standard that was established fifty years ago, this standard has been used in broadcasting systems for 50 years. So the pentagon of the entire element will be lacking, and the emergence of HDR can be said to make up for this link. The emergence of HDR can give us a higher brightness dynamic range. How much is this brightness dynamic? Or how much of the brightness range can be miscalled HDR? The brightness of the real world is very wide, ranging from the 10th to the 9th power of the highest normal sunlight to the very slight brightness of the starlight. The human eye system can basically capture the 10th power range in the large dynamic range.
Everyone may say that the human eye cannot see the entire range, but in fact the human eye has certain adaptability. The human eye can make adjustments by zooming in and out of the pupil, which allows us to see a greater brightness dynamic range but keep in mind that a typical value of 10 is the 5th power range so it can be said that as long as the 5th power of 10 is satisfied The range can satisfy the human eye system's perception of the brightness of the real environment, which also means that 10 of the 5 times may become a reference standard.
In fact, there are already some high-end cameras, such as Sony's F55, F65 products have been able to record the 10th of the 5th power dynamic range of the brightness. Some high-end or partial display devices, such as Sony's TVs and Sony's monitors, can also perform 10th brightness dynamic range reduction. Does everyone think that we can already see the effect of 10th brightness dynamics? Actually not, because there is a bottleneck here. The bottleneck lies in the recording and transmission of video formats, or the standard of SDR 50 years ago. The maximum number of digits that can only be carried to 10 times is 10, and finally it is impossible to reflect SDR or high on our TV. Dynamic range effect.
We have a completely new format for HDR. Its performance can reach the 5th power range of 5th power, which can meet the needs of the human visual system for ambient light perception.
Previously mentioned in other Sony activities before, today there is a very important concept for everyone to make a description, HDR brings more than just the brightness dynamic range, in fact, brings more color. Everyone should have seen the gamut map. This is the gamut of BT.709 and the gamut of BT.2020. This is a flat concept. Have you ever seen a three-dimensional color card? Today we also introduce the concept of three-dimensional color space. The lower plane is the range of the color gamut, and the vertical axis is the dynamic range of the luminance. When our brightness dynamic range is combined with our colors, a three-dimensional color space is formed. This three-dimensional color space means how much color the video format can bring.
In simple terms, HDR builds a larger coordinate system than SDR to reproduce a larger color gamut and a higher brightness dynamic range.
The standard of 50 years of BT.709 and the standard of SDR have been used before, and it is possible to bring about a smaller color space. When we use the new BT.2020 color space, plus the SDR technology, which is just the 5th power dynamic range of 10, we can get the growth of the number of geometric levels of color, it can be said to be larger than before Several times. So emphasize that HDR brings not only the dynamic range of brightness, but the amount of color.
In order to pursue the restoration of true contrasts, let's look at this top-level master reference level monitor with a value of around 300,000. It is also a reference standard for many of today's top movie or broadcast quality standards. For the television, it can be said to be the same as God. It will become the reference for today. Its performance is very good, from the brightness range just said, or color, color gamut, it can do a very good reproduction from low to high. In a dark place, excellent white balance, color control, and color gamut control can be achieved, and sufficient brightness and reproduction of contrast can be performed pixel by pixel in a bright place. For ordinary LCD or liquid crystal, there may be a problem in the dark part, it will compress the color gamut, because it cannot be reproduced for some dark scenes, it will compress the color gamut and cannot precisely control the white balance control. At the same time, the bright part cannot satisfy the 5th power requirement of 10, and at the same time, the contrast of the full pixel cannot be achieved because of the characteristics of the liquid crystal.
When the LCD with local light control technology is now available, the local light control can help the ordinary LCD to achieve a good brightness level control for dark scenes so as to maintain the control of the original color while having excellent white balance. But unfortunately, the brightness is still not enough to reach the 5th power range required by the video, and it is also impossible to compare the pixels. Therefore, it is very necessary to improve the backlight system technology. A new set of backlight technology that we have brought to everyone today is the Backlight Master Drive. We have specifically named it as “The Master Edition of Dynamic Backlight Systemâ€. It is the most advanced backlight enhancement technology and is a very sophisticated backlight enhancement technology.
For everyone to see the right picture (no way to take pictures), it has a very high density of LED lights. At the same time, we use a new optical design to effectively control the overflow of adjacent LED lights. At the same time, it uses an ultra-high LED backlight system. This ultra-high light source has already been adopted in the automotive field and can be used in some high-end automobiles. See the LED light is bright. But the number is not that many, and there are thousands of lights behind our LCD TVs. How to effectively control these large numbers of lamps is a very important issue. Therefore, a new high-brightness lamp bead has been adopted and a new management system has been adopted to accurately manage and control a large number of LED lamps.
The third is a very important point, it is a high-density direct-type LED backlight, it will bring a very real problem is the heat. But in fact, this technology does not use a special cooling system. Compared to other brands, similar technology uses a very large liquid cooling system, or semiconductor cooling technology, because technically we are still the main From the user's point of view, the product that carries this technology is the design of a normal television, not an industrial display.
The fourth point is power consumption. A large number of LED lamps will also bring about an energy consumption problem. However, we have advanced driving algorithms that can balance energy consumption very well. This 85-inch prototype is In the case of ultra-high brightness, the power consumption is basically the same as that of an ordinary 85-inch TV.
Remember these four points: unique optical design, ultra-high brightness LED, high-density direct-under LED, but no cooling system, while maintaining power consumption with precise backlight algorithm.
The image on the left can be seen in the traditional backlight technology. We see the following brightness output graph. The vertical axis is the brightness level and the brightness is basically constant, so it is the same in any scenario. Consumption. On our TVs, we can accurately analyze the images, find dark scenes, bright scenes, brighten up bright scenes, and control light on dark scenes. The energy of the local light control area is transferred to the bright part, and the bright part is improved, so that the energy consumption can be well controlled. This is a very important technology, and it is also a very unique and unique light control technology.
This technology has actually begun to be deployed in the product two years ago and is a very good help for our Backlight Master Drive.
As shown in the figure, this is a schematic diagram of the backlight operation of a conventional direct-type dynamic backlight, and its relatively small number of partitions, each of which will be relatively large. So the place with the highest brightness can not achieve more accurate reduction, and after adopting Backlight Master Drive's system, you can see these partitions become more refined. With more refinement, we can use more energy saved to more precise images that require high brightness. This can restore a very good picture while maintaining energy consumption.
This picture is very complicated, do not have to say too much, just remember one point. The human eye system will be a bit diffuse and stray light phenomenon. Why do you see this picture for everyone? Because someone said, isn't the back light getting better? It is not really. The human eye also has certain restrictions on the recognition of light sources. For example, we see a light source at a point on a plane and see a small piece of a light source. It scatters back into a piece in our eyes to get an almost uniform perception. Therefore, we research to find a reasonable number and size of partitions according to the principle of renewal. In this way, we can create a human eye's perception of light perception through a certain number of LED backlight distributions.
I am sorry that the current zoning figures cannot be disclosed to everyone at the moment, but we can tell everyone that the figures in this zoning are sufficient to meet the needs of the human eye for light perception. With this technology, we can provide better brightness. We have just said that the dynamic backlight system can already achieve very good low-brightness color control and excellent white balance, and at the same time, it can satisfy high-brightness conditions. HDR video needs high dynamic range. More importantly, it can satisfy the perception of the human eye to the perception of the light source in order to achieve a close to RGB-OLED contrast.
Next, we will do some demonstrations for everyone. Finally we will summarize some important parameters of Backlight Master Drive.
First: maximum brightness. Backlight Master Drive can reach a maximum brightness of 4000 nits or cd/m2.
Second: global and local contrast, the perception of our human eyes is close to RGB Led. Many people will say that OLED is not the future development of technology? Is it a direction for the future? Actually not. Why do you say that? Since RGB Led can't do this much, why do I keep emphasizing RGB Led? Because RGB Led is the best effect, for example, we have close to 300,000 master reference level monitors, but it can not be bigger. What everyone sees on the market today is actually a white light OLED backlight OLED TV. Its technical principle is completely different. It cannot display the complete color space just seen. By improving the performance on the LCD, we can use the new Backlight Master Drive technology to allow us to obtain large sizes on LCD TVs simultaneously, as well as the reduction of contrast effects or color display effects close to OLEDs, which can be achieved on LCDs. Therefore, LCD should be a mainstream trend in the next few years.
As we said earlier, all our technologies are still in the verification phase. However, all technologies are aimed at consumers and users. We are also working hard on assessments and assessments and will consider deploying it to actual products as soon as possible.
For HDR signals, you may be concerned about performance, brightness of 1000 nits, more colors. But what is the most important thing for HDR TV? Is it just performance? No. To give everyone a concept, please remember that the first one is Unicom, why is Unicom first, not performance? Because when the connectivity is not good, HDR signals can not be correctly identified for decoding, can not do a good physical connection, it is no good behind. Nothing happens because the best performance doesn't play.
The second most important thing is accuracy. What is the concept of accuracy? No matter how high the performance of my hardware can be achieved, but for the input signal, if it is accurately displayed is a waste of hardware performance, so the accuracy is a very important second concept.
The last is performance. This performance refers to hardware performance. This performance hardware may refer to color gamut and contrast. The color, hue, and grayscale of the above are accurate indications of these things, and the following is only the range that can be reached. At this point we may have seen this LOGO, Ultra HD premiere this LOGO or this system only to verify the hardware performance, hardware performance we can do great, but you can not do very good connectivity and accurate display, that Everything is in vain.
Sony's 4K HDR LOGO is aimed at the concept of Unicom, first of all to ensure the user's connectivity, to ensure the reproduction of HDR, Sony TV has always been very accurate performance, we can see later in the demo.
The next step was to see the truth. Next came three television sets for everyone and a monitor. The center is the product of Backlight Master Drive. This is our last year's flagship model, the 75X9400C with a dynamic direct backlight. The middle station has already understood that it is our master reference level OLED. The one on the other side is the white OLED of other brands. Let's make a comparison today.
We will next see three demonstrations. First, this demo "Las Vegas." Please pay attention to some details. The first one is to pay attention to the overall contrast between the urban night sky and the city as a whole, and the second one to pay attention to the accuracy of the neon lights and the lights in the city, especially the red ones. Basically, the color of the monitor is the most accurate, and the overall tone and color of the two Sony TVs are kept at a level. Red is pure red, and everyone can pay attention to these details.
Because that product supports HDR, but only support USB HDR, so that TV is connected to the USB, that TV does not support HDMI input, so it is more difficult to synchronize.
Please pay attention to a few points here. People will not even compare the color of the skin, the level of the sky, the overall contrast between the heavenly work and the building, and the local contrast on the building. This scene is a sunset scene close to dusk in New York City. The sun setting over the earth and the sea should have a very warm sun color. These three televisions can accurately reproduce the colors. The following table is beyond doubt. it's the best. Second, you can see the color and brightness reflected by the Backlight Master Drive, infinitely close to the RGB OLED, while the color of the other white LED is basically inaccurate, which is also limited by the performance of the white OLED.
Finally we look at a simulation effect. I have just said that there are very dense LED lights behind. Our prototype can let everyone see such a picture, this is the actual work effect of the LED lamp behind. We can see that the dense LED lights can outline a complete picture. Can we see people's faces? All the places where the river is bright are highlighted. Dense enough to meet the human eye's perception of light.
We'll see the demo again. It's not made. It's the movie that you can see in the market. Love you Anne, use the high dynamic range content that Sony F65 shoots, native high dynamic range content. Everyone noticed the texture of the glass window, the texture of various materials, and the light golden shades of sunlight on the earth. We can also pay attention to the difference between it and it, in some subtle brightness performance, such as in the building just can not accurately restore the details of the highlighted part. Let's look back at the neon lights. I think the neon lights are beautiful inside. The middle of the stage seemed to be seen on the scene, and the three-dimensional light was very strong. TI brightness, color red is very pure, that is basically orange. And the word on this poker card is very clear. This is an outdoor LED light that is very bright, which is a very high brightness dynamic range. If you say that all over exposure of traditional TV is a white, invisible.
Our explanation and demonstration today are basically here. Do you have any questions?
Reporter: The concept of direct-lit LED backlighting plus light control was actually raised on TV before. What are the differences between our new products and previous products?
Zhou Zhenyu: The direct type partitions are very dense, and we can see that our partitions can outline a picture, so that very precise contrast reproduction can be achieved. Although we can't do a full pixel like RGB OLED, this area can already be Meet the human eye's perception of light. So the very dense LED pie can make TV dynamic contrast better. Secondly, there is also a very important brightness. The new LED lamp system can raise the brightness to a height that is enough to meet the real-world perception. The height of 4,000 nits is quite amazing.
Reporter: The LED lamp itself has improved, right?
Zhou Zhenyu: The LED lights have been improved, the LED lights have been improved, and the number of LED lights has been greatly increased.
Reporter: The traditional direct type will be thicker. What about this one?
Zhou Zhenyu: It will be thicker and relatively thick. But in this size TV is also possible, because we did not use a special cooling system, so there is no problem. Of course, this is a prototype technology, and it is not yet available. The actual model should not be like this.
Reporter: How much is power consumption controlled now?
Zhou Zhenyu: The power consumption level is basically the same as the current ordinary 85-inch LCD TV.
Reporter: The same size?
Zhou Zhenyu: The same size is basically the same. Because this is a benefit of HDR technology.
Reporter: There is a part of promotion, and part of it has dropped.
Zhou Zhenyu: It can also achieve precise control and put a lot of energy in bright places.
Reporter: The overall balance has not changed much?
Zhou Zhenyu: Not so big, so I can control energy consumption very well. Our original intention was to consider civilian technology as civilian use. If the power consumption is very large, the household will be able to use electricity several times a day. I believe we cannot accept it.
Reporter: As a 4K Sony camcorder now used for civilian use, isn't this HDR shooting video specially designed, is it possible to have internal conversion software and optimize the area?
Zhou Zhenyu: Yes, we have an area downstairs to do demonstrations, that is to say, there is a certain optimization for the conversion of SDR signals to HDR signals, but it cannot be completely optimized to exactly the same and there will be some optimization. Our last one is in the demo area on the second floor.
Reporter: Is this technology doomed to be used only in large sizes?
Zhou Zhenyu: The technology itself can be small in size. Four or more inches or fifty inches can be used. It is still under consideration and the final layout is still studying what kind of products.
Reporter: I feel this contrast permeability, I feel there is a big difference with the parent belt level.
Zhou Zhenyu: Master level is small. If it is so big, many bright places will be similar to the above.
Q: I now have a problem. HDR is not just a piece of display terminal. It is a piece of photography and it is a piece of transmission. If there is no content for HDR, there are no better equipments. If you look at SDR with HDR, the effect is not particularly obvious. Does Sony not only deploy HDR TV terminals but also have layouts in content and other aspects?
Zhou Zhenyu: First of all, there is still a lot of discussion in the content. There is no accurate information on what content can be provided. The effect of normal SDR signal conversion to HDR is actually very obvious, although it does not achieve true HDR signal effects. We can look at the following, the effect of this signal's up-conversion is very obvious. Compared with ordinary SDR TV put SDR signal and HDR TV put SDR signal, this difference is very big, there is a great improvement effect.
Guests: There is another piece. In fact, HDR is a new format standard. For us, content creation includes transmission to the final demonstration device. There are actually many ways in the transmission process, one is network communication, television broadcasting is also possible, like Japan is also studying. Something like Netflix and YouTube may have such actions abroad. More is to find Blu-ray discs, you can also broadcast, so there are many ways to transfer content. In accordance with the transmission method, many contents will begin to be prepared, so more and more foreign content in this area. It's very easy to use Blu-ray discs. For example, the current month's video is based on HDR. In fact, the content itself is already HDR. It just means that the effect of transmitting to the final TV shows may be such a process.
Tokyo Engineer: In fact, the HDR content just mentioned a lot of solutions, in fact, there is a solution has emerged abroad. 4K HDR's BD (Blu-ray disc), which is already available abroad, may be introduced into China at some point in the future.
Reporter: The player must support HDR BD?
Zhou Zhenyu: Of course.
Guests: Not yet in China.
Reporter: If China's broadcasting and TV broadcasts are converted to HDR signals, will this be more difficult?
Guest: In terms of Backlight Master Drive, it is difficult for us to speak. I just said three ways. One is wireless transmission, just like cable TV. There is also a network, and the third is blue light. I think that Blu-ray and the Internet can be foreseen more quickly. We can look at the development model.
Reporter: Can the HDMI interface support the 2.0 standard?
Zhou Zhenyu: At present, it is.
Guests: In fact, this is an engineering prototype and is the concept of Sony Black Technology. The 4000 nits are not suitable for the final civilian use. I finally have to measure what size and what kind of machine to use. But the effect it achieved was that although the brightness value was high, it was not overexposed and the color was still in a bright place. This was done very well. This is a technology we are also very concerned about when we show at CES.
Reporter: When will the machine equipped with this technology be listed?
Guests: I hope that the sooner the better, but now it has entered the actual operation stage, and I hope it will soon.
Reporter: Will there be any improvement when this TV broadcasts non-HDR resources?
Guests: Just mentioned that there is a promotion function, that is, there is a demonstration on the second floor below, that is, the signal of the ordinary SDR is the standard signal, and it also has the function of raising the standard signal.
Reporter: What is the concept of the so-called white light OLED?
Zhou Zhenyu: To put it simply, each pixel is RGB, and all the pixels behind the white OLED are white. In front of the white pixel is coated with a filter to filter the white color into another color. In terms of color purity, it cannot be compared with the original RGB.
The second, RGB brightness to take into account to enhance the brightness of the LED, plus a white pixel next to the three pixels, so the overall white pixel is higher. But in this case, white balance can be difficult to control.
It is such a problem that everyone sees that the television is just in the red, or when it is expressed in some solid colors. That is, it is not the real RGB pixel LED.
Guests: There is no way. It must be so big and must be thin. It must achieve such an effect.
Reporter: Now that we have RGBW, can we say that?
Zhou Zhenyu: Yes, RGBW OLED. Because the only RGB LED that can now be used in a mass production line is this line, and it is Sony's own. OLEDs are just backlights.
Guests: This is a completely different product from an engineer's point of view, although they are all OLEDs.
Reporter: In the past, adjusting brightness was the overall picture adjustment. Brightness was bright together, darkness was dark together, and the loss in the middle was large. This kind of precision light control is to control this piece of light, what kind of other what kind of.
Zhou Zhenyu: Re-engineering is a completely different technology in the eyes. Now LG can only do this and can no longer make RGB. This is their direction. This direction is absolutely limited for their so-called OLED TVs. The main reason is that the dynamic range of color and brightness is very limited, and it cannot be broken at present.
Q: This year we are pushing HDR. What are the advantages of Sony's HDR over other brands?
Zhou Zhenyu: The backlight is a big point. The second, purely from hardware performance, this technology has reached 4000 nits. And we have already reached a very high value in sales. Of course, we can look at the effect. It is also important that for the three concepts of HDR, the first one is connectivity, and Sony can ensure good connectivity because we have the entire HDR industry chain and there is no problem with connectivity.
The second is accuracy. This is the performance that Sony has always had. We can see that this is a TV that we are already selling, and that the master monitor can achieve the same tone, so the quasi-study is very good.
The third is the hardware indicator. Because the hardware indicator is not useful, I can do a good job of hardware indicators, but I can't display it.
Guests: The biggest feature is that we now make a dynamic backlight system, which is Sony's unique technology. This is the master version, there is also an elite version. HDR is just a standard. What is Sony HDR good for? One is the elite light control that we have been pushing before. The light control technology we calculate is the best. The second is that there is a very important backlight line, which is very important. The original machines that were previously so thin were OLEDs, and the light guides were very heavy. This would certainly have a great impact on light control. The next time there is a chance to do detailed communication, we have detailed how to make two layers of light guide plates. Become a crossover and do better on light control. Because the light control is done well, the bright place can be brightened.
Reporter: I have just seen some details, such as the purity of black leather that we photographed outside.
Guests: Because the elements of OLED are self-illumination, the dark place must be darker. There is no doubt that it is completely black, of course. The problem is that there are also differences in the real shadows, that is, there are details in the shadows, not really black, but there is actually a slight difference in the darkness.
Guest 2: It is a very dark place that is automatically switched off. It should not be switched off.
Guests: It is the detail of the highlights and the details of the shadows. It is definitely the darkest thing to turn off for an extreme value, because it is self-luminous.
Guest 2: After this kind of switch off, it feels like the screen is pure. In fact, it should not be so dark. In fact, there are details in that place. The brightness should be raised slightly.
Zhou Zhenyu: Give you a small hint that you can do such an experiment in the evening. When you go to Beijing to look for a place where the ambient light is bright, look at the sky. The sky is not black.
At the Sony TV new technology conference at the end of March, we also saw Backlight Master Drive backlight technology, which was also demonstrated at CES. Prior to Backlight Master Drive, we made a review of HDR. Everyone should already know about HDR. First of all, I see such a picture. The quality of the video is basically divided into five important elements: resolution, color depth (grayscale), frame rate, and color space. These are familiar to everyone and are now developing very quickly. From 2K to 4K or even 8K, from 8 bits to 10 bits or even 12 bits, from the original SRGB to the DCI of the movie and to the current latest BT.2020 range, the number of frames from the original 24 to 60I to 60P, even The future 120P. These developments are very fast and have reached a very high standard.
Today we have to say another - brightness dynamic range, this may not know much before. Because this standard is basically the SDR standard that was established fifty years ago, this standard has been used in broadcasting systems for 50 years. So the pentagon of the entire element will be lacking, and the emergence of HDR can be said to make up for this link. The emergence of HDR can give us a higher brightness dynamic range. How much is this brightness dynamic? Or how much of the brightness range can be miscalled HDR? The brightness of the real world is very wide, ranging from the 10th to the 9th power of the highest normal sunlight to the very slight brightness of the starlight. The human eye system can basically capture the 10th power range in the large dynamic range.
Everyone may say that the human eye cannot see the entire range, but in fact the human eye has certain adaptability. The human eye can make adjustments by zooming in and out of the pupil, which allows us to see a greater brightness dynamic range but keep in mind that a typical value of 10 is the 5th power range so it can be said that as long as the 5th power of 10 is satisfied The range can satisfy the human eye system's perception of the brightness of the real environment, which also means that 10 of the 5 times may become a reference standard.
In fact, there are already some high-end cameras, such as Sony's F55, F65 products have been able to record the 10th of the 5th power dynamic range of the brightness. Some high-end or partial display devices, such as Sony's TVs and Sony's monitors, can also perform 10th brightness dynamic range reduction. Does everyone think that we can already see the effect of 10th brightness dynamics? Actually not, because there is a bottleneck here. The bottleneck lies in the recording and transmission of video formats, or the standard of SDR 50 years ago. The maximum number of digits that can only be carried to 10 times is 10, and finally it is impossible to reflect SDR or high on our TV. Dynamic range effect.
We have a completely new format for HDR. Its performance can reach the 5th power range of 5th power, which can meet the needs of the human visual system for ambient light perception.
Previously mentioned in other Sony activities before, today there is a very important concept for everyone to make a description, HDR brings more than just the brightness dynamic range, in fact, brings more color. Everyone should have seen the gamut map. This is the gamut of BT.709 and the gamut of BT.2020. This is a flat concept. Have you ever seen a three-dimensional color card? Today we also introduce the concept of three-dimensional color space. The lower plane is the range of the color gamut, and the vertical axis is the dynamic range of the luminance. When our brightness dynamic range is combined with our colors, a three-dimensional color space is formed. This three-dimensional color space means how much color the video format can bring.
In simple terms, HDR builds a larger coordinate system than SDR to reproduce a larger color gamut and a higher brightness dynamic range.
The standard of 50 years of BT.709 and the standard of SDR have been used before, and it is possible to bring about a smaller color space. When we use the new BT.2020 color space, plus the SDR technology, which is just the 5th power dynamic range of 10, we can get the growth of the number of geometric levels of color, it can be said to be larger than before Several times. So emphasize that HDR brings not only the dynamic range of brightness, but the amount of color.
In order to pursue the restoration of true contrasts, let's look at this top-level master reference level monitor with a value of around 300,000. It is also a reference standard for many of today's top movie or broadcast quality standards. For the television, it can be said to be the same as God. It will become the reference for today. Its performance is very good, from the brightness range just said, or color, color gamut, it can do a very good reproduction from low to high. In a dark place, excellent white balance, color control, and color gamut control can be achieved, and sufficient brightness and reproduction of contrast can be performed pixel by pixel in a bright place. For ordinary LCD or liquid crystal, there may be a problem in the dark part, it will compress the color gamut, because it cannot be reproduced for some dark scenes, it will compress the color gamut and cannot precisely control the white balance control. At the same time, the bright part cannot satisfy the 5th power requirement of 10, and at the same time, the contrast of the full pixel cannot be achieved because of the characteristics of the liquid crystal.
When the LCD with local light control technology is now available, the local light control can help the ordinary LCD to achieve a good brightness level control for dark scenes so as to maintain the control of the original color while having excellent white balance. But unfortunately, the brightness is still not enough to reach the 5th power range required by the video, and it is also impossible to compare the pixels. Therefore, it is very necessary to improve the backlight system technology. A new set of backlight technology that we have brought to everyone today is the Backlight Master Drive. We have specifically named it as “The Master Edition of Dynamic Backlight Systemâ€. It is the most advanced backlight enhancement technology and is a very sophisticated backlight enhancement technology.
For everyone to see the right picture (no way to take pictures), it has a very high density of LED lights. At the same time, we use a new optical design to effectively control the overflow of adjacent LED lights. At the same time, it uses an ultra-high LED backlight system. This ultra-high light source has already been adopted in the automotive field and can be used in some high-end automobiles. See the LED light is bright. But the number is not that many, and there are thousands of lights behind our LCD TVs. How to effectively control these large numbers of lamps is a very important issue. Therefore, a new high-brightness lamp bead has been adopted and a new management system has been adopted to accurately manage and control a large number of LED lamps.
The third is a very important point, it is a high-density direct-type LED backlight, it will bring a very real problem is the heat. But in fact, this technology does not use a special cooling system. Compared to other brands, similar technology uses a very large liquid cooling system, or semiconductor cooling technology, because technically we are still the main From the user's point of view, the product that carries this technology is the design of a normal television, not an industrial display.
The fourth point is power consumption. A large number of LED lamps will also bring about an energy consumption problem. However, we have advanced driving algorithms that can balance energy consumption very well. This 85-inch prototype is In the case of ultra-high brightness, the power consumption is basically the same as that of an ordinary 85-inch TV.
Remember these four points: unique optical design, ultra-high brightness LED, high-density direct-under LED, but no cooling system, while maintaining power consumption with precise backlight algorithm.
The image on the left can be seen in the traditional backlight technology. We see the following brightness output graph. The vertical axis is the brightness level and the brightness is basically constant, so it is the same in any scenario. Consumption. On our TVs, we can accurately analyze the images, find dark scenes, bright scenes, brighten up bright scenes, and control light on dark scenes. The energy of the local light control area is transferred to the bright part, and the bright part is improved, so that the energy consumption can be well controlled. This is a very important technology, and it is also a very unique and unique light control technology.
This technology has actually begun to be deployed in the product two years ago and is a very good help for our Backlight Master Drive.
As shown in the figure, this is a schematic diagram of the backlight operation of a conventional direct-type dynamic backlight, and its relatively small number of partitions, each of which will be relatively large. So the place with the highest brightness can not achieve more accurate reduction, and after adopting Backlight Master Drive's system, you can see these partitions become more refined. With more refinement, we can use more energy saved to more precise images that require high brightness. This can restore a very good picture while maintaining energy consumption.
This picture is very complicated, do not have to say too much, just remember one point. The human eye system will be a bit diffuse and stray light phenomenon. Why do you see this picture for everyone? Because someone said, isn't the back light getting better? It is not really. The human eye also has certain restrictions on the recognition of light sources. For example, we see a light source at a point on a plane and see a small piece of a light source. It scatters back into a piece in our eyes to get an almost uniform perception. Therefore, we research to find a reasonable number and size of partitions according to the principle of renewal. In this way, we can create a human eye's perception of light perception through a certain number of LED backlight distributions.
I am sorry that the current zoning figures cannot be disclosed to everyone at the moment, but we can tell everyone that the figures in this zoning are sufficient to meet the needs of the human eye for light perception. With this technology, we can provide better brightness. We have just said that the dynamic backlight system can already achieve very good low-brightness color control and excellent white balance, and at the same time, it can satisfy high-brightness conditions. HDR video needs high dynamic range. More importantly, it can satisfy the perception of the human eye to the perception of the light source in order to achieve a close to RGB-OLED contrast.
Next, we will do some demonstrations for everyone. Finally we will summarize some important parameters of Backlight Master Drive.
First: maximum brightness. Backlight Master Drive can reach a maximum brightness of 4000 nits or cd/m2.
Second: global and local contrast, the perception of our human eyes is close to RGB Led. Many people will say that OLED is not the future development of technology? Is it a direction for the future? Actually not. Why do you say that? Since RGB Led can't do this much, why do I keep emphasizing RGB Led? Because RGB Led is the best effect, for example, we have close to 300,000 master reference level monitors, but it can not be bigger. What everyone sees on the market today is actually a white light OLED backlight OLED TV. Its technical principle is completely different. It cannot display the complete color space just seen. By improving the performance on the LCD, we can use the new Backlight Master Drive technology to allow us to obtain large sizes on LCD TVs simultaneously, as well as the reduction of contrast effects or color display effects close to OLEDs, which can be achieved on LCDs. Therefore, LCD should be a mainstream trend in the next few years.
As we said earlier, all our technologies are still in the verification phase. However, all technologies are aimed at consumers and users. We are also working hard on assessments and assessments and will consider deploying it to actual products as soon as possible.
For HDR signals, you may be concerned about performance, brightness of 1000 nits, more colors. But what is the most important thing for HDR TV? Is it just performance? No. To give everyone a concept, please remember that the first one is Unicom, why is Unicom first, not performance? Because when the connectivity is not good, HDR signals can not be correctly identified for decoding, can not do a good physical connection, it is no good behind. Nothing happens because the best performance doesn't play.
The second most important thing is accuracy. What is the concept of accuracy? No matter how high the performance of my hardware can be achieved, but for the input signal, if it is accurately displayed is a waste of hardware performance, so the accuracy is a very important second concept.
The last is performance. This performance refers to hardware performance. This performance hardware may refer to color gamut and contrast. The color, hue, and grayscale of the above are accurate indications of these things, and the following is only the range that can be reached. At this point we may have seen this LOGO, Ultra HD premiere this LOGO or this system only to verify the hardware performance, hardware performance we can do great, but you can not do very good connectivity and accurate display, that Everything is in vain.
Sony's 4K HDR LOGO is aimed at the concept of Unicom, first of all to ensure the user's connectivity, to ensure the reproduction of HDR, Sony TV has always been very accurate performance, we can see later in the demo.
The next step was to see the truth. Next came three television sets for everyone and a monitor. The center is the product of Backlight Master Drive. This is our last year's flagship model, the 75X9400C with a dynamic direct backlight. The middle station has already understood that it is our master reference level OLED. The one on the other side is the white OLED of other brands. Let's make a comparison today.
We will next see three demonstrations. First, this demo "Las Vegas." Please pay attention to some details. The first one is to pay attention to the overall contrast between the urban night sky and the city as a whole, and the second one to pay attention to the accuracy of the neon lights and the lights in the city, especially the red ones. Basically, the color of the monitor is the most accurate, and the overall tone and color of the two Sony TVs are kept at a level. Red is pure red, and everyone can pay attention to these details.
Because that product supports HDR, but only support USB HDR, so that TV is connected to the USB, that TV does not support HDMI input, so it is more difficult to synchronize.
Please pay attention to a few points here. People will not even compare the color of the skin, the level of the sky, the overall contrast between the heavenly work and the building, and the local contrast on the building. This scene is a sunset scene close to dusk in New York City. The sun setting over the earth and the sea should have a very warm sun color. These three televisions can accurately reproduce the colors. The following table is beyond doubt. it's the best. Second, you can see the color and brightness reflected by the Backlight Master Drive, infinitely close to the RGB OLED, while the color of the other white LED is basically inaccurate, which is also limited by the performance of the white OLED.
Finally we look at a simulation effect. I have just said that there are very dense LED lights behind. Our prototype can let everyone see such a picture, this is the actual work effect of the LED lamp behind. We can see that the dense LED lights can outline a complete picture. Can we see people's faces? All the places where the river is bright are highlighted. Dense enough to meet the human eye's perception of light.
We'll see the demo again. It's not made. It's the movie that you can see in the market. Love you Anne, use the high dynamic range content that Sony F65 shoots, native high dynamic range content. Everyone noticed the texture of the glass window, the texture of various materials, and the light golden shades of sunlight on the earth. We can also pay attention to the difference between it and it, in some subtle brightness performance, such as in the building just can not accurately restore the details of the highlighted part. Let's look back at the neon lights. I think the neon lights are beautiful inside. The middle of the stage seemed to be seen on the scene, and the three-dimensional light was very strong. TI brightness, color red is very pure, that is basically orange. And the word on this poker card is very clear. This is an outdoor LED light that is very bright, which is a very high brightness dynamic range. If you say that all over exposure of traditional TV is a white, invisible.
Our explanation and demonstration today are basically here. Do you have any questions?
Reporter: The concept of direct-lit LED backlighting plus light control was actually raised on TV before. What are the differences between our new products and previous products?
Zhou Zhenyu: The direct type partitions are very dense, and we can see that our partitions can outline a picture, so that very precise contrast reproduction can be achieved. Although we can't do a full pixel like RGB OLED, this area can already be Meet the human eye's perception of light. So the very dense LED pie can make TV dynamic contrast better. Secondly, there is also a very important brightness. The new LED lamp system can raise the brightness to a height that is enough to meet the real-world perception. The height of 4,000 nits is quite amazing.
Reporter: The LED lamp itself has improved, right?
Zhou Zhenyu: The LED lights have been improved, the LED lights have been improved, and the number of LED lights has been greatly increased.
Reporter: The traditional direct type will be thicker. What about this one?
Zhou Zhenyu: It will be thicker and relatively thick. But in this size TV is also possible, because we did not use a special cooling system, so there is no problem. Of course, this is a prototype technology, and it is not yet available. The actual model should not be like this.
Reporter: How much is power consumption controlled now?
Zhou Zhenyu: The power consumption level is basically the same as the current ordinary 85-inch LCD TV.
Reporter: The same size?
Zhou Zhenyu: The same size is basically the same. Because this is a benefit of HDR technology.
Reporter: There is a part of promotion, and part of it has dropped.
Zhou Zhenyu: It can also achieve precise control and put a lot of energy in bright places.
Reporter: The overall balance has not changed much?
Zhou Zhenyu: Not so big, so I can control energy consumption very well. Our original intention was to consider civilian technology as civilian use. If the power consumption is very large, the household will be able to use electricity several times a day. I believe we cannot accept it.
Reporter: As a 4K Sony camcorder now used for civilian use, isn't this HDR shooting video specially designed, is it possible to have internal conversion software and optimize the area?
Zhou Zhenyu: Yes, we have an area downstairs to do demonstrations, that is to say, there is a certain optimization for the conversion of SDR signals to HDR signals, but it cannot be completely optimized to exactly the same and there will be some optimization. Our last one is in the demo area on the second floor.
Reporter: Is this technology doomed to be used only in large sizes?
Zhou Zhenyu: The technology itself can be small in size. Four or more inches or fifty inches can be used. It is still under consideration and the final layout is still studying what kind of products.
Reporter: I feel this contrast permeability, I feel there is a big difference with the parent belt level.
Zhou Zhenyu: Master level is small. If it is so big, many bright places will be similar to the above.
Q: I now have a problem. HDR is not just a piece of display terminal. It is a piece of photography and it is a piece of transmission. If there is no content for HDR, there are no better equipments. If you look at SDR with HDR, the effect is not particularly obvious. Does Sony not only deploy HDR TV terminals but also have layouts in content and other aspects?
Zhou Zhenyu: First of all, there is still a lot of discussion in the content. There is no accurate information on what content can be provided. The effect of normal SDR signal conversion to HDR is actually very obvious, although it does not achieve true HDR signal effects. We can look at the following, the effect of this signal's up-conversion is very obvious. Compared with ordinary SDR TV put SDR signal and HDR TV put SDR signal, this difference is very big, there is a great improvement effect.
Guests: There is another piece. In fact, HDR is a new format standard. For us, content creation includes transmission to the final demonstration device. There are actually many ways in the transmission process, one is network communication, television broadcasting is also possible, like Japan is also studying. Something like Netflix and YouTube may have such actions abroad. More is to find Blu-ray discs, you can also broadcast, so there are many ways to transfer content. In accordance with the transmission method, many contents will begin to be prepared, so more and more foreign content in this area. It's very easy to use Blu-ray discs. For example, the current month's video is based on HDR. In fact, the content itself is already HDR. It just means that the effect of transmitting to the final TV shows may be such a process.
Tokyo Engineer: In fact, the HDR content just mentioned a lot of solutions, in fact, there is a solution has emerged abroad. 4K HDR's BD (Blu-ray disc), which is already available abroad, may be introduced into China at some point in the future.
Reporter: The player must support HDR BD?
Zhou Zhenyu: Of course.
Guests: Not yet in China.
Reporter: If China's broadcasting and TV broadcasts are converted to HDR signals, will this be more difficult?
Guest: In terms of Backlight Master Drive, it is difficult for us to speak. I just said three ways. One is wireless transmission, just like cable TV. There is also a network, and the third is blue light. I think that Blu-ray and the Internet can be foreseen more quickly. We can look at the development model.
Reporter: Can the HDMI interface support the 2.0 standard?
Zhou Zhenyu: At present, it is.
Guests: In fact, this is an engineering prototype and is the concept of Sony Black Technology. The 4000 nits are not suitable for the final civilian use. I finally have to measure what size and what kind of machine to use. But the effect it achieved was that although the brightness value was high, it was not overexposed and the color was still in a bright place. This was done very well. This is a technology we are also very concerned about when we show at CES.
Reporter: When will the machine equipped with this technology be listed?
Guests: I hope that the sooner the better, but now it has entered the actual operation stage, and I hope it will soon.
Reporter: Will there be any improvement when this TV broadcasts non-HDR resources?
Guests: Just mentioned that there is a promotion function, that is, there is a demonstration on the second floor below, that is, the signal of the ordinary SDR is the standard signal, and it also has the function of raising the standard signal.
Reporter: What is the concept of the so-called white light OLED?
Zhou Zhenyu: To put it simply, each pixel is RGB, and all the pixels behind the white OLED are white. In front of the white pixel is coated with a filter to filter the white color into another color. In terms of color purity, it cannot be compared with the original RGB.
The second, RGB brightness to take into account to enhance the brightness of the LED, plus a white pixel next to the three pixels, so the overall white pixel is higher. But in this case, white balance can be difficult to control.
It is such a problem that everyone sees that the television is just in the red, or when it is expressed in some solid colors. That is, it is not the real RGB pixel LED.
Guests: There is no way. It must be so big and must be thin. It must achieve such an effect.
Reporter: Now that we have RGBW, can we say that?
Zhou Zhenyu: Yes, RGBW OLED. Because the only RGB LED that can now be used in a mass production line is this line, and it is Sony's own. OLEDs are just backlights.
Guests: This is a completely different product from an engineer's point of view, although they are all OLEDs.
Reporter: In the past, adjusting brightness was the overall picture adjustment. Brightness was bright together, darkness was dark together, and the loss in the middle was large. This kind of precision light control is to control this piece of light, what kind of other what kind of.
Zhou Zhenyu: Re-engineering is a completely different technology in the eyes. Now LG can only do this and can no longer make RGB. This is their direction. This direction is absolutely limited for their so-called OLED TVs. The main reason is that the dynamic range of color and brightness is very limited, and it cannot be broken at present.
Q: This year we are pushing HDR. What are the advantages of Sony's HDR over other brands?
Zhou Zhenyu: The backlight is a big point. The second, purely from hardware performance, this technology has reached 4000 nits. And we have already reached a very high value in sales. Of course, we can look at the effect. It is also important that for the three concepts of HDR, the first one is connectivity, and Sony can ensure good connectivity because we have the entire HDR industry chain and there is no problem with connectivity.
The second is accuracy. This is the performance that Sony has always had. We can see that this is a TV that we are already selling, and that the master monitor can achieve the same tone, so the quasi-study is very good.
The third is the hardware indicator. Because the hardware indicator is not useful, I can do a good job of hardware indicators, but I can't display it.
Guests: The biggest feature is that we now make a dynamic backlight system, which is Sony's unique technology. This is the master version, there is also an elite version. HDR is just a standard. What is Sony HDR good for? One is the elite light control that we have been pushing before. The light control technology we calculate is the best. The second is that there is a very important backlight line, which is very important. The original machines that were previously so thin were OLEDs, and the light guides were very heavy. This would certainly have a great impact on light control. The next time there is a chance to do detailed communication, we have detailed how to make two layers of light guide plates. Become a crossover and do better on light control. Because the light control is done well, the bright place can be brightened.
Reporter: I have just seen some details, such as the purity of black leather that we photographed outside.
Guests: Because the elements of OLED are self-illumination, the dark place must be darker. There is no doubt that it is completely black, of course. The problem is that there are also differences in the real shadows, that is, there are details in the shadows, not really black, but there is actually a slight difference in the darkness.
Guest 2: It is a very dark place that is automatically switched off. It should not be switched off.
Guests: It is the detail of the highlights and the details of the shadows. It is definitely the darkest thing to turn off for an extreme value, because it is self-luminous.
Guest 2: After this kind of switch off, it feels like the screen is pure. In fact, it should not be so dark. In fact, there are details in that place. The brightness should be raised slightly.
Zhou Zhenyu: Give you a small hint that you can do such an experiment in the evening. When you go to Beijing to look for a place where the ambient light is bright, look at the sky. The sky is not black.
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