So, in the end how can we buy a genuine 4K TV? Here are some suggestions for everyone.
What is a 4K TV?
4K is an international standard for display technology. The screen resolution of a television must reach 3840×2160. The 4K resolution is exactly 4 times that of a traditional 1080p full HD, so it is also called Ultra HD or UHD.
Although 4K only specifies the sharpness of the screen, it is obviously not enough if the television has only a screen with a resolution of 3840×2160. In order to ensure true 4K ultra high-definition visual enjoyment, the video content displayed on the screen must also reach the level of Ultra HD.
Beware of two fake 4K TVs
In the first two years of 4K TV, some models have only been equipped with 4K screens, but the built-in chips do not have 4K video playback capability, or the format of the decoding is not complete, and they have been dismissed as "false 4K" by the industry.
In the 1080p era, H.264 video encoding format is the mainstream, but after entering the 4K era, H.265 is the encoding format for 4K. According to technical data, H.265-encoded video files with the same resolution are only half of H.264, which brings convenience for network transmission or file storage. If the 4K TV does not support the playback of 4K video in H.265 format, it can basically be regarded as "false 4K". After the H.265 becomes mainstream in the future, it will be very embarrassing.
Another kind of "false 4K" that has recently appeared is on the screen. This type of screen uses adjacent pixels to share the sub-pixels to reduce costs, the entire screen is only 6 million pixels in total, and the real 4K screen should have more than 8.2 million pixels.
How to identify serious fake 4K?
For the former type of fake 4K, we can read the product information carefully. If we mention support for H.265 4K decoding, then don't worry. The safer method is to download the 4K short video in H.265 format on the Internet, install it on a USB flash drive, and bring it to the store for on-site testing.
The latter type of fake 4K is very confusing because it is difficult for the naked eye to distinguish between 6 and 8 million pixels. And because the current 4K standard is not strict, this type of TV can also be marked with 4K Ultra HD. The only method that can be identified at present is to look at its promotional materials or whether the screen specification has the word "RGBW". The normal 4K TV pixel arrangement is RGB, and the pixel arrangement of this screen is a unique RGBW method.
4K source is also very important
If you buy a 4K Ultra HDTV, it's really a waste to watch HD or SD programs. But just as when 1080p Full HD came out, 4K also faced the problem of having 4K TVs and lacking 4K sources. At present, not only domestic television stations around the world have officially provided 4K television broadcasting. The 4K TV in the mall can only attract the eye by playing some 4K scenery.
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What is a Capsule Slip Ring?
Capsule slip rings are a type of electrical connector that are used to transfer power and data between two rotating objects. They are commonly used in applications where there is a need to send or receive signals from a stationary object to a rotating one, or vice versa.
How Does it Work?
Capsule slip rings work by using a series of electrical contacts that rotate with the object on which they are mounted. These contacts are spaced evenly around the circumference of the ring, and as they rotate they make and break contact with corresponding contacts on the other object. This allows power and data to be transferred between the two objects without any interruption.
Advantages of Capsule Slip Rings
There are several advantages to using capsule slip rings in place of other types of electrical connectors.
For example, the rotation of the contacts causes them to be freely accessible and therefore free from dust and debris. This makes them ideal for applications where connector maintenance is often a problem.
Because the contacts are freely accessible, they can be readily replaced if a fault occurs. They also have very low electrical resistance, making them ideal for transmitting radio frequency signals. Because of the low resistance, this type of connector is often used in high-speed data transmissions.
This type of Conductive Slip Ring is similar to the shape of a hat. The brim part is a flange with a conductive slip ring. The function of the flange is to facilitate installation. It is connected to electrical equipment through the fixing hole of the flange. It can be firmly installed on the equipment. Therefore, the stator of the cap-type slip ring is generally fixed by the outer layer with a flange, and the inner part is the rotor with the inner shaft rotating. The stator and the rotor are not fixed, and the details will be different according to the installation method.
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