When purchasing a TV, everyone seeks to choose the best and most successful model according to their parameters, which would have many interesting features and a high-quality image. The high cost of such equipment is not at all a guarantee of displaying a realistic picture. Expensive TV, with built-in innovative technologies, sometimes gives a blurry image. This effect can be caused by the difference between the resolution of the matrix and the format of the incoming video. So, what should be the resolution of the TV screen for a high-contrast high-quality image?
Current TV Resolution Standards
Screen resolution is a parameter that characterizes the ratio of the number of color dots that form an image in the horizontal and vertical directions. A number is used to represent the screen resolution setting. The greater the number of dots in the screen matrix, the clearer the reproduced image is.
Models produced before 2005 had a screen matrix resolution of 640 × 480 pixels; in the last 15 years, models with matrices of 1366 × 768, 1920 × 1080 pixels and ultra-modern devices with a resolution of 3840 × 2160 have appeared. The parameter in question must be indicated along with other specifications. in the technical passport of each specific TV.
The screen resolution in the documentation can also be reflected in another format: 480p, 768p, 1080i or 1080p, 2160p. The number indicates the number of vertical pixels of the corresponding resolution, and the letter of the English alphabet indicates frame sweep type. The letter «i» stands for interlaced scanning, «p» for progressive scanning.
Manufacturers label TV screen resolution standards with letter abbreviations: SD, HD Ready, Full HD, 4K. TVs presented on store shelves differ in resolution standard and other technical characteristics. Models with the SD resolution standard are no longer produced, but they are still on sale. Next, we will take a closer look at the currently relevant standards.
TVs with a resolution of 1366×768 pixels can reproduce 720p recordings with high fidelity, which corresponds to the HD definition standard for high-density discs. Models with 768 dot matrix are labeled HD Ready by manufacturers.
This model is suitable for high-quality viewing of DVD movies, ETsTV channels, HD video recordings.
Many HD TV channels have appeared in Russia, broadcasting content at a density of 1080p. HD Ready TV panels handle this format. However, the image quality deteriorates due to not enough vertical pixels. To watch high-definition channels and 1080p video recordings, you need a high-resolution TV
In terms of price, HD Ready models are the most affordable. The price of a particular model also depends on other technical specifications.
Models with a resolution of 1920 × 1080 pixels received the Full HD label. The Full prefix indicates that the screen reproduces HD content with the same quality, both in 720p density and in 1080p density. And these are films on DVD and Blue-Ray discs, digital terrestrial television, HD satellite and cable TV channels, any video content from the Internet in high definition: HD or FHD. The image is reproduced detailed and clear, with natural color transitions.
The cost of a TV panel with FHD resolution is slightly higher than an opponent with an HDR matrix with the same other technical characteristics.
The modern teleworld has stepped onto the next technological level: in developed countries, the Ultra HD (UHD) digital TV broadcasting format is being introduced. However, there are still not so many TV channels and video content with ultra high resolution in Russia. But on sale there is already a technique capable of reproducing such content with high quality. TV panels are marked with a screen resolution of 3840 × 2160 pixels 4K or Ulnta HD symbols.
When viewing HD content, which represents the vast majority on the market, 4K panels do not improve the image in any way. The cost of Ultra HD TVs is still quite high, other things being equal, in comparison with HDR and FHD technology.
A little about sweep
Along with the number of pixels located in the horizontal and vertical plane, the image in the projection and panel screens is affected by the type of scan. She may be:
- interlaced and has the designation «i»;
- progressive, denoted as «p».
In the first case, the picture is updated in 2 steps every 30 seconds, first even, then odd. Such an effect in a lighted room, with an increased degree of ultraviolet rays, can cause flicker. Progressive scan is better: it has a positive effect on image quality, as it updates all the lines at the same time every minute.
The playback quality also depends on signal decomposition and is divided into the following types: SDTV, EDTV, HDTV and stands for standard signal definition, enhanced and high, respectively. These indicators are grouped and determine the type of permission.
Which resolution is better to choose
Optionally, a TV with a very large diagonal and a large number of pixels will allow you to get the perfect picture. Given the source of the signal, you can choose the best option to achieve the best effect.
- To watch channels 1 and 2 of the CETV multiplexes, most of the channels of satellite and cable providers without HD and UHD marks, DVD movies, the capabilities of a TV panel with an HD Ready screen are sufficient.
- If you plan to watch HD digital television on your TV, use the TV screen in conjunction with a Blue-Ray player, then it is better to choose a Full HD panel.
- If the budget allows, and there is also a desire to buy a TV that will not become obsolete for the next 5 years, choose a model with a 4K matrix. The same standard is relevant for gamers — in 2020, most game consoles have switched to UHD content.
To date, according to experts, models with Full HD screens are considered the best choice. When choosing, other important parameters should be taken into account: screen diagonal, viewing angle, matrix type, scan type, and others.
Developments in video quality formats continue. 8K Ultra High Definition is already available. The format corresponds to a resolution with a density of 4320p, which is 4 times higher than the Ultra HD standard introduced in the production of TV panels. According to the official standards of the Consumer Technology Association, 8K devices must have a screen resolution of at least 7680×4320 pixels.
There are very few TVs with such a screen in the world. The cost of 8K panels is extremely high. the production of screens with a matrix of 7680×4320 pixels is expensive.
In conclusion, we note that in Russia Full HD is the technology of the present, the era of UHD (4K) is the near future, and 8K is a distant prospect.