As everyone's standard of living is getting higher and higher, in addition to work, I also like watching TV or playing computer at home leisure time. Among them, the display products of TV and computer are the same as the digital products of the imaging category. It will inevitably give you a small question, what is the difference between them?
The viewing distance determines the size?
The difference between TV and monitor is largely because of the purpose of their use. For example, when we use TV, we usually sit on a sofa or chair, and we are about 1.5m away from the TV. However, the distance increases and the TV The size of the machine is proportional. So when we buy a TV, the most important thing to consider is the viewing distance. The monitors are usually connected to the computer for us to work or play games, so the distance between us and the monitor is basically between 60cm and 80cm.
Because the size of the home environment varies from person to person, there is a relatively large spatial range for watching TV distance. In this case, there are many possibilities for the size design of the TV set. Now the size of the TV set is 40 inches or 50 inches, or even 70 inches. However, for the display, the display of 23 inches or so is in the market, and the display of 27 inches or more is already a large-screen display pursued by users. At present, the largest display size is no more than 40 inches, which is already a size of the display. Peak limit.
Furthermore, our requirements for displays and TVs are different, which also determines the difference in development strategy between display and TV. TVs focus on color and color temperature, while monitors focus on eye protection and detail control. Some of the professional monitors and e-sports monitors that we often hear about are the top-notch technologies in a certain aspect of the display.
Professional numerical orientation is different
TV plays a role of entertainment in the family, so the picture that people see is beautiful is the biggest task of TV, so it takes a lot of effort to process the processing. For example, in the case of a green plant, the TV may optimize the color to make it look bright green, although the darker green will be more real, but the bright green is undoubtedly more eye-catching. And the color standards used by TVs and monitors are completely different. Currently, the color standard used for displays is sRGB, while TVs use Rec. The 709 standard or a few DCI-P3 standards.
For the range of grayscale displays, the TV and display are also completely different. We measure the reduction power of the screen with a gray scale between 0 and 256. Since the display needs to perform daily processing work, it can display gray scales between 0 and 256. The TV's ability to restore grayscale is not so harsh, most of them show grayscale between 16 and 235.
tail
In fact, it has been suggested that television can be used as a display screen, or that the display screen is used as a television. They have coincidences in many respects, but each has its own place. This kind of argument is just like the problem that cameras and camcorders use to shoot video. Since the two can survive independently of each other for so long, it is enough to prove that each has its value. When it comes back to TV and display screens, most of the TV is for entertainment. No one will investigate the TV data enough. The same display is for the professional category, so it is more obvious for the crowd. TVs and monitors can co-exist and don't interfere with each other, and they can play an important digital product role in the areas we need.
The AS-I (i.e. actuator-sensor interface) bus belongs to the bus system at the bottom device level. It is a two-wire network for digital input and output, which complies with EN50295 and IEC62026-2 specifications.
Various types of digital devices can be connected, such as: Sensors, limit switches, buttons, valves, relays, light curtains and emergency stop switches, etc., and send signals to higher-level controls such as PC, PLC, CNC or DCS system. In general, AS-I does not require shielded cables and terminal resistors.
The unshielded two-wire cable used carries both the signal and the power. Generally speaking, the AS-I bus system is simple and reliable, easy to install and fast to configure, and is widely used in industrial automation fields such as logistics, automobile production, petrochemical industry, and elevator control.
The As-I Passive Distributor simple module is pierced and connected to the flat cable, which is suitable for installation in a narrow space, and can provide connection methods such as aviation connectors.
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