4K accreditations are a decent method to separate TVs that offer extraordinary picture quality from increasingly unobtrusive ones. What's more, today everybody has 4K goals and HDR framework. This makes it harder for clients to realize which models offer better execution. Be that as it may, not all 4K affirmations are the equivalent. So it is imperative to recognize what sort of tests they perform and if they truly ensure that the TV has incredible picture quality. 

Then again we have "the discussion" of the white sub-pixel. A few brands discuss the white sub-pixel as a negative component for the picture nature of a TV. Truth be told, magnifiers are being utilized in certain outlets to envision that white sub-pixel and impart that the way that the pixel is RGB (without white sub-pixel) produces better hues, splendour and sharpness. Be that as it may, this isn't so. We should attempt to explain it. 


You can't deny that the more pixels a screen has, the better the picture quality should be. The pixel is the base unit of the picture and the littler it is, the greater amount of them will fit on the TV screen and can show better subtleties of the picture. Thus, the goals of TVs has been expanding throughout the years. We have gone from the Standard Definition or SD (720 x 575 pixels) to the current 4K (3840 x 2160 pixels), going through the HD (1024 x 720 pixels) and Full HD (1920 x 1080 pixels). Before long the standard will become 8K. 

Be that as it may, is the measure of pixels the only thing that is in any way important to get the best picture quality? The appropriate response is no. With a current 65-inch 4K TV price in Bangladesh, around 30 cm seeing separation, fine subtleties can be duplicated and saw loyally. In any case, they are progressively hard to see as we move away from the screen somewhere in the range of 1 and 2 meters. 

In actuality, our eye is equipped for seeing, even a few meters away, various shades of hues, sizes of brilliance, and even the gleaming of a film recorded at 50 casings for each second or less. Consequently, the innovations related to the screens of the TVs keep on improving, not exclusively to incorporate more pixels however so they are of "Better Quality". 

This leads us to ponder, what are the "Best Quality" pixels? They are pixels fit for imitating expanding shading spaces. Likewise powerful scopes of splendour and higher dim scales with littler interims. 

Pixels fit for repeating pictures at a quicker speed to show more honed moving pictures. To put it plainly, pixels that enable us to duplicate a picture as comparative as we would see it with our very own eyes. Or then again, with the accurate tones and elements of how the movie executive needs us to see those substances. 

This is the reason when we audit the attributes of a TV we see other noticeable terms. For instance, it is extremely basic to peruse terms, for example, WCG (Wider Color Gamut), BT.2020 or the known HDR (High Dynamic Range) on promoting publications. 

For a TV to have the option to work with 4K goals, diverse HDR designs and with 10 or even 12 bits, you need an amazing picture processor. A chip like the Alpha 9 and Alpha 7 from LG, present on their OLED and SuperUHD TVs with Nano cells individually. In particular, Alpha 9 processors, present in OLED C8 TVs and higher, are the main ones to date equipped for accepting 4K UHD TV signals, with HDR, HFR, WCG BT.2020 and Dolby Atmos sound. 

As we have seen, the quality proportion between video flag in UHD and 4K screens isn't decreased uniquely to the measure of pixels on the screen. Different principles, for example, shading spaces, HDR, HFR designs and the number of bits among others additionally become an integral factor. 


There are a few organizations that affirm TV screens that enable you to ensure if a 4K TV is perfect with the highest calibre UHD signals. A few models are UL in the United States, Intertek in the UK or TÜV in Germany. 

In any case, among them, a 4K confirmation organization perceived all through Bangladesh. It guarantees both the screen goals of a 4K TV and its similarity concerning the capacity to replicate flag in UHD. This incorporates WCG, HDR and HFR, both for signals associated with the TV through HDMI, just as USB, Streaming and Antenna. 

What we can be sure of is that not all 4K accreditation organizations are equivalent. Some emphasis just on parts of the screen. Others, even, are self - affirmation organizations. That is, it is simply the TV maker that plays out its tests, exhibiting a last report to get the authentication. These are less requesting, for the most part, and less target. 


To lessen vitality utilization without losing picture quality, a few TVs have started to fuse a 4 white sub-pixel or W, to the customary R, G, B. 

These screens are called RGBW, some of which, in very good quality models, are additionally perfect with HFR (100 Frames for every second), Dolby Vision HDR, Technicolor HDR and Dolby Atmos sound. What's more, they are 4K TVs, perfect with UHD, 10bit, WCG, HDR video signals, 

To put it plainly, while picking which Smart TV price in Bangladesh, we should focus on both goals and similarity with better arrangements. The age of WRGB screens gives better difference and definition, streamlines 38% splendour brilliance, improves shading volume and diminishes vitality utilization. Likewise, it is advantageous to confirm 4K affirmations.


I am Masum Hossain. I live in Dhaka, Bangladesh.

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