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Home > Tech News > The monitors are all 360Hz, why do some televisions still stick to 30Hz?
The monitors are all 360Hz, why do some televisions still stick to 30Hz?

The monitors are all 360Hz, why do some televisions still stick to 30Hz?

By  Adan Heidbreder 2020-02-03 1604 24

[PConline Information] friends who like to play games will choose a monitor that supports 144Hz when equipped with a computer. Supporting a higher refresh rate means that you can see a smoother picture of the game. Maybe for a master, if you want to win this game, you need dozens of extra frames to end the game with an early gun. In the recent CES, NVIDIA, together with Asustek ROG, brought 360Hz's ultra-high refresh rate G-SYNC display ROG Swift 360Hz, once again refreshing the ultra-high refresh rate of the previous 240Hz.

In fact, it is not only the display that pursues high frame rate, but now more and more phones are also pursuing high frame rate. In fact, as early as 2017, Razer Phone was equipped with a 2K Sharp IGZO screen that supports 120Hz, and then on iPad Pro, Apple also launched a screen technology called ProMotion adaptive refresh rate, which achieved 120Hz refresh rate. In the field of mobile phones, 90Hz has begun to gain popularity in the past year, and Samsung S20 phones are expected to be equipped with standard 120Hz screens in 2020. Many people who have used 90Hz or even 120Hz's mobile phone screen say that they really can't go back this time.

Smooth, is the first feeling of many users when they are equipped with high refresh rate screen phones, whether you are reading Weibo, moments or long web posts, sliding down without stutters. Handy, if you are already using your flagship mobile phone, but occasionally feel that the mobile phone is not very handy, it may not be the pot of system or performance. If the screen refresh rate is low, it will indeed affect the response speed of the screen in some operations, giving you the illusion that the phone does not follow your hand.

The screen with high frame rate can provide a faster and smoother experience and meet our expectations for hardware upgrades, so it seems that the screen with a higher refresh rate is the development direction of display technology in the future, but strangely enough, as a TV which accounts for a large proportion of the display category, it still has no chance for high frame rate at present. Now buy TV or 4KTV HDR, if you know something about TV, or will consider panel peak brightness, color gamut, but only the refresh rate has not been mentioned, even the current top 4K TV is often only 30Hz refresh rate.

Is that a question of cost? After all, it can be seen from the monitor and mobile phone that the screen with high refresh rate still accounts for part of the cost. There is indeed such a reason, but why is it not seen in high-end products? In fact, it is because of the content. First, let's take a look at the use scenarios of high refresh rate display devices. 144Hz's display mainly plays e-sports games. It is very common to achieve games with an average frame number of more than 100 frames with high-performance graphics cards, so there is a real need for high frame rate in use scenarios.

Let's take a look at mobile phones. Although there is a lack of high frame rate games on mobile phones for the time being, 90Hz does bring different experiences when browsing Weibo, moments, reading long articles or swiping in UI. These are also the scenarios we need when using mobile phones. Equipped with high refresh rate screens not only increases the selling points, but also makes some users have an irreversible experience.

What about the use of TV? Play a play, watch a movie, watch a football game. Wait, didn't you say that TV doesn't need a high refresh rate in terms of content? When watching the game, the players will have a meal as soon as they run. Sometimes I can't see where the ball is going, so I don't need a high frame rate. This is true, but in order to experience the high refresh rate, a series of processes such as signal sources composed of stadium shooting equipment and broadcasting equipment, network transmission, and video transcoding in TV stations are needed. At present, some streaming media are trying to launch game broadcasting with high refresh rate, but from the cost behind, it will take some time to achieve popularity. Of course, there are already a lot of televisions through MEMC.Frame filling technology to achieve approximately high frame rate fluency performance effect, but this is only a transitional scheme.

Then why don't movies and TV dramas shoot 60 frames or more? This question has long been raised by filmmakers and practiced by filmmakers. When the Hobbit was released in 2011, it launched a 48-frame version, double the frame rate of the current mainstream 24-frame film and television. However, it is not easy to experience this version. There were only 1000 screens in the world with 48-frame screenings that year. But high-frame-rate films didn't seem to be popular until the 120-frame production of Billy Lynn's long halftime War, directed by Ang Lee, was released in 2016, but there were only five cinemas in the world that supported 4K and 120 frames, and there were only two in China.

High frame rate film and television works can not be promoted, in addition to cost reasons, the huge amount of data is also in the way. Take director Ang Lee's new film "Gemini Killer" for his second attempt to shoot a film with 4K+120 frame specifications, for example, 120 frames make the shooting material five times the size of conventional film works, and the finished material still needs to go through a series of post-production, such as post-editing, computer special effects processing, color blending and so on, and the resulting workload is even more astonishing. In addition, the shutter speed will also be affected by the 120 frames, which will be reduced to about 1/5 of the 24FPS picture, which is also a big test for the lighting of the chandelier in the night or indoor scene. Taken together, the cost of time and money will be greatly increased, and even with today's state-of-the-art shooting equipment and post-processing equipment, it is still a challenge for them to deal with the amount of data brought about by high frame rates.

In fact, I did not mention one of the more common scenes on TV-playing games. With the announcement of the next generation of game consoles PS5 and Xbox Series X, 4K60 frames, or even 120 frames, will become the standard picture parameters of the new generation of consoles, and there will be more scenarios for TV to support high frame rate. At present, the high-end TVs released by major TV brands on ces2020 even support 8k60hz and 4k120hz. the Q91 released by Skyworth at the exhibition uses a 75-inch 8K wide-view IPS screen to support the refresh rate of 120Hz; while the 8-Series TV displayed by TCL can also reach 120Hz; Sony has also launched X90H designed for game groups, which provides the refresh rate of 120Hz.

Conclusion:At present, high-end TV has begun to deploy support for high frame rate, the next step is the corresponding high frame rate film and television resources, if there is no good content, no matter how strong hardware is meaningless. As mentioned above, the production of a film and television work involves the cooperation between multiple types of work, different equipment and workflow, which also leads to the increase in the number of frames in professional image production is difficult to achieve at present. But on the contrary, in the civilian field, high frame rate video shooting is becoming more and more popular. at present, streaming media such as oil pipes have begun to provide playback options of 60 frames or more, mobile phones have supported slow motion video shooting of 240frames or even 960frames or more, while portable video shooting machine BMPCC 6K has achieved 6K 50 frames.. Although it is a step behind the popularity of high refresh rates for monitors and mobile devices, it is believed that TV products will also keep up with this trend in the future.Gradually popularize high refresh rate.

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