There are similarities between smart TV and smart phone, such as CPU / GPU / running memory, etc., but TV is a device that pays attention to display effect, so in addition to hardware parameters, it is more important to look at image quality processing technology. There are some models on the market. Although the parameters are good-looking, the actual experience is not good. Online search is also mostly soft evaluation, no reference. How to buy smart TV?
Basic purchase logic of smart TV
1. TV size selection method
First of all, you need to prepare a tape measure to measure the distance from your TV to the sofa, that is, the viewing distance when we usually watch TV. We need to choose a smart TV of appropriate size according to the measured viewing distance, which can effectively avoid myopia and eye fatigue.
To watch a house 2.5m-3m away, it is recommended to buy 4K: 55 inch, 65 inch, 8K: 65 inch smart TV, which can reduce the stimulation of watching TV on eyes.
For a house between 3M and 3.5m, it is recommended to purchase 4K: 65 inch, 75 inch, 78 inch, 8K: 75 inch smart TV, which can reduce the stimulation of watching TV on eyes.
To watch a house 3.5m-4m away, it is recommended to buy 4K: 75 inch, 78 inch, 85 inch, 8K: 98 inch smart TV, which can reduce the stimulation of watching TV on eyes.
To watch a house between 4 meters and 4.5 meters away, it is recommended to buy 4K: 85 inch, 98 inch, 110 inch, 8K: 110 inch smart TV, which can reduce the stimulation of watching TV on the eyes.
For houses with a viewing distance of more than 5m, it is recommended to purchase 4K: 98 inch, 110 inch, 130 inch and above smart TV, which can reduce the eye irritation caused by watching TV.
2. Introduction to the types and effects of image quality processing technology of smart TV
HDR Technology
HDR TV can present more colors than high-end 4K TV. However, in order to achieve HDR image quality processing effect, the CPU and image processor of TV need to meet certain specifications to ensure smooth rendering
Quantum dot technology
At present, the quantum dot technology used in TV is not the same as the real quantum dot panel. It is still LCD TV in essence, just coating the quantum dot material on the backlight of LCD TV or on the back of LCD panel. So as to expand the color gamut and enhance the brightness of the picture. Moreover, the picture quality improvement brought by the quantum dot backlight is also obvious, especially the color gamut, which can reach an amazing 157% bt.709, which is not the level of ordinary LCD TV or even OLED TV.
MEMC
MEMC is motion compensation. The TV equipped with this technology enables the chip to predict the next frame of each frame by itself, that is, to make a judgment on the motion track of the dynamic picture, and then generate the picture frames that are not in the original video, and insert them between the original frames. For example, the original 30 Hz (picture refreshes 30 times per second) video can become 60 Hz (picture refreshes 60 times per second) through the MEMC algorithm. The more times the video refreshes, the smoother the effect is. With the blessing of this technology, then when we watch live events, it's very cool. The picture is smooth and not tardy. It looks more exciting!
3. Hardware parameters and evaluation methods of smart TV
CPU central processing unit
Chip performance depends on the number of CPU cores and the main frequency of operation, which will affect the running fluency of UI system, various applications and games. Nowadays, smart phones are generally four or eight cores, and of course, TV can't fall behind.
GPU graphics processor
The function of GPU is similar to that of the video card on the computer, except that there is no independent video card in the TV, GPU and CPU are integrated in one chip. GPU is mainly responsible for graphics rendering, which is particularly important for the game. It requires strong GPU and CPU cooperation to provide a smooth game experience.
4K decoding capability
TV is used to watch video, so we need to consider video decoding ability, especially 4K video decoding ability
Ram running memory
The running memory is relatively simple. It mainly depends on the size of the capacity. Many old smart TV menus react slowly and often crash. One of the main reasons is that the memory is too small. The larger the memory is, the better. In addition, the specific specifications of memory also need to be noted. 2GB is the most basic requirement. As DDR3 has reached the upper limit of its performance and bandwidth, DDR4 emerges as the times require. There are few smart TV fields in DDR4.
Basic purchase logic of smart TV
1. TV size selection method
First of all, you need to prepare a tape measure to measure the distance from your TV to the sofa, that is, the viewing distance when we usually watch TV. We need to choose a smart TV of appropriate size according to the measured viewing distance, which can effectively avoid myopia and eye fatigue.
To watch a house 2.5m-3m away, it is recommended to buy 4K: 55 inch, 65 inch, 8K: 65 inch smart TV, which can reduce the stimulation of watching TV on eyes.
For a house between 3M and 3.5m, it is recommended to purchase 4K: 65 inch, 75 inch, 78 inch, 8K: 75 inch smart TV, which can reduce the stimulation of watching TV on eyes.
To watch a house 3.5m-4m away, it is recommended to buy 4K: 75 inch, 78 inch, 85 inch, 8K: 98 inch smart TV, which can reduce the stimulation of watching TV on eyes.
To watch a house between 4 meters and 4.5 meters away, it is recommended to buy 4K: 85 inch, 98 inch, 110 inch, 8K: 110 inch smart TV, which can reduce the stimulation of watching TV on the eyes.
For houses with a viewing distance of more than 5m, it is recommended to purchase 4K: 98 inch, 110 inch, 130 inch and above smart TV, which can reduce the eye irritation caused by watching TV.
2. Introduction to the types and effects of image quality processing technology of smart TV
HDR Technology
HDR TV can present more colors than high-end 4K TV. However, in order to achieve HDR image quality processing effect, the CPU and image processor of TV need to meet certain specifications to ensure smooth rendering
Quantum dot technology
At present, the quantum dot technology used in TV is not the same as the real quantum dot panel. It is still LCD TV in essence, just coating the quantum dot material on the backlight of LCD TV or on the back of LCD panel. So as to expand the color gamut and enhance the brightness of the picture. Moreover, the picture quality improvement brought by the quantum dot backlight is also obvious, especially the color gamut, which can reach an amazing 157% bt.709, which is not the level of ordinary LCD TV or even OLED TV.
MEMC
MEMC is motion compensation. The TV equipped with this technology enables the chip to predict the next frame of each frame by itself, that is, to make a judgment on the motion track of the dynamic picture, and then generate the picture frames that are not in the original video, and insert them between the original frames. For example, the original 30 Hz (picture refreshes 30 times per second) video can become 60 Hz (picture refreshes 60 times per second) through the MEMC algorithm. The more times the video refreshes, the smoother the effect is. With the blessing of this technology, then when we watch live events, it's very cool. The picture is smooth and not tardy. It looks more exciting!
3. Hardware parameters and evaluation methods of smart TV
CPU central processing unit
Chip performance depends on the number of CPU cores and the main frequency of operation, which will affect the running fluency of UI system, various applications and games. Nowadays, smart phones are generally four or eight cores, and of course, TV can't fall behind.
GPU graphics processor
The function of GPU is similar to that of the video card on the computer, except that there is no independent video card in the TV, GPU and CPU are integrated in one chip. GPU is mainly responsible for graphics rendering, which is particularly important for the game. It requires strong GPU and CPU cooperation to provide a smooth game experience.
4K decoding capability
TV is used to watch video, so we need to consider video decoding ability, especially 4K video decoding ability
Ram running memory
The running memory is relatively simple. It mainly depends on the size of the capacity. Many old smart TV menus react slowly and often crash. One of the main reasons is that the memory is too small. The larger the memory is, the better. In addition, the specific specifications of memory also need to be noted. 2GB is the most basic requirement. As DDR3 has reached the upper limit of its performance and bandwidth, DDR4 emerges as the times require. There are few smart TV fields in DDR4.
