What does PQI mean
The PQI picture quality index is an attempt by TV manufacturers to rank their TV models to show which TV model is better. This trend began in 2012, when all TV manufacturers started to use one index or another. At first, these indices were labelled Hertz and reached huge heights. In fact, the companies were misleading users, and in 2015, these indices lost Hertz and turned into faceless numbers. When it comes to Samsung, for example, the quality index is not used at all in the US. In Europe, the quality index continues to be used, but only in certain TV ranges.
History of the Samsung PQI
Samsung originally used the Clear Motion Rate index, then PQI came along 2015, after PQI disappeared, Motion Rate was revived. But in 2021 Motion Rate also stopped being mentioned.
In my opinion, the reason is very simple: if a manufacturer publishes any index, it must explain how it is calculated, and prove it in practice, in reality it is very difficult, I would say impossible. So all these indices will sooner or later cease to be used, they will be replaced by other designations, for example Game motion with parameter Yes.
Calculation of the PQI index
No one knows how Samsung calculates the picture quality index. And for this reason, TVs with the same displays, the same main boards and, therefore, the same processors, have different indices. Also keep in mind that Samsung can install displays from different manufacturers in the same TV model, and, for example, from 2022 Samsung will stop producing LED displays for TVs at all, having sold its factory to a Chinese company. Samsung will only produce displays for next-generation QD-OLED, or OLED, TVs because LG’s sales practices have shown great potential for OLED displays.
But back to PQI, every year the image quality index increases, the dynamics of PQI is as follows.
2015: 100 – 2400 PQI
2016: 400 – 2600 PQI
2017: 600 – 3400 PQI
2018: 800 – 4,000 PQI
2019: 1000 – 4300 PQI
2020: 1500 – 4500 PQI
2021: 2000 – 4900 PQI
2022: 2000 – 5000 PQI
In the US, Samsung does not use PQI, instead it uses Motion Rate.
As I said before, the PQI index is only used in some countries, such as Europe.
The higher the index, the more potential the TV has. But, in my opinion, this is just marketing. PQI is not about picture quality, it would be more correct to call it a TV rating. What does the picture quality index tell you, the answer is nothing, you can’t determine the class of the TV. It’s just an index created for marketing purposes, and the more features your TV has at the operating system level, the higher the index will be.
Picture Quality Index vs Motion Rate
The PQI is a quality index that includes all the characteristics of the TV, screen and software. However, it is not clear how it is calculated.
Motion Rate is an index that says that the picture quality on the TV after processing is similar to video at the appropriate frequency, and is usually 120 for 60 Hz displays and 240 for 120 Hz displays. Samsung implies that the image processing programs, as well as the backlighting controls, make the image look smoother, and the viewer feels like they are watching a higher frame rate video, on a TV with a 60 hertz display just as much as on a TV with a 120 hertz display.