Hdr mode (should hdr mode be turned on)
One of the five most important dimensions, “Dynamic Contrast Range”, the emergence of DR has made up for the stagnation of the previous SDR standard. After entering the TV stage, HDR has also been blown to perfection. In fact, in the eyes of many consumers, the purpose of the HDR function is not clear. Today we will focus on this topic and tell you about the basic theoretical knowledge of this technology.
In a word: the darker the black, the brighter the bright!
The full name of HDR high dynamic range is simple to understand, that is, through HDR, the display or camera can better express the image beyond its brightness range, and it can also be simply understood that HDR can greatly improve the contrast between light and dark of the picture details. To put it bluntly, it is to increase the brightness of the bright picture and reduce the brightness of the black picture, so that the difference between higher brightness and lower brightness becomes larger. The black is darker, the light is brighter, and the contrast goes up.
Another feature of HDR is the halo effect. When a person goes from a dark place to a bright place, his eyes narrow because they don’t have time to shrink to protect the photoreceptor cells in the retina. By adjusting the original image, HDR can simulate the physiological response of the human eye to automatically adapt to changes in light, producing a halo-like effect.
The HDR function was initially widely used in photography equipment, and gradually expanded to display equipment in 2016. In my opinion, this is a small change from image shaping to practical application. Since then, the trend of TV products equipped with HDR functions has also begun.
The market is now flooded with thousands of HDR TVs. Almost every TV in every household has the so-called HDR function, but in fact, most people may not have experienced the sensory enjoyment brought by the real HDR technology. Achieving the full experience of HDR functions is not as easy as you might think.
Hardware support is very important, if it is less than 10,000 yuan, don’t talk about HDR.
The bigger bottleneck is cost. A TV with HDR function at a price of 2,000 yuan is naturally not at the same level as a TV with a price of 10,000 yuan. As the carrier of HDR content playback, the quality of this screen is naturally a hard indicator for the realization of the HDR function. There are many products on the market that advertise the HDR function, but whether they can play is one thing, and whether they can serve the HDR function well is another.
HDR functionality requires a TV with very high display quality, including black point capability, brightness, and the ability to shape detail. Only with top-level hardware support can HDR resources show their visual effects. Are you naively expecting “folk products” with uneven light leakage to give you a proper HDR experience? On the other hand, a better backlight system or a simple self-illuminating OLED TV can further enhance the contrast of the picture, providing good soil for HDR.
If you want the ultimate enjoyment, the consumption level is even more unacceptable. you may feel nowThere is really no need to spend hundreds of thousands of dollars on high-end TVs. In fact, from the perspective of quality and price ratio, it is true. The so-called product at the top of the pyramid is Youyou.com, which exchanges 100% of the price for 1% of the promotion. OK, but really not necessary.
However, it can be said that with the continuous exploration of high-end technology, TVs worth around 10,000 yuan can better support HDR sources. Is this explanation clear enough? Next time I will split the core elements that affect image quality in more detail and learn more about video technology.
Recommended related products in this article:
HDR upgrade XDR hit: Hisense U7G Pro
Super mini LED backlight: Samsung QN85A
OLED self-illumination, “infinite” contrast: Sony A8H