In the upcoming 4K era, HDR high dynamic range technology will soon become a universal standard. What can TV do without HDR technology? Sony recently demonstrated a new approach.
At InterBee 2015, Sony officially exhibited the so-called HLG (Hybrid Log Gamma) standard. The HLG standard is registered by the BBC and NHK. In simple terms, a single signal can support HDR TV and non-HDR TV at the same time.
The working principle of HLG is to decode the highlight and low-light parts of the HDR signal in two different ways. The former uses a logarithmic curve and the latter a standard gamma curve. Compared with serious HDR TVs, non-HDR TVs receiving HLG have slightly different display effects, but the perception is very close, and the experience is still improved.
The so-called HDR technology is simply a technique that allows the highlights of an image to be exposed and the low-light is not exposed, which means that the details can be clearly displayed everywhere in the image. We often see the HDR three letters in photography, and it will also become the standard for future 4K TVs and 4K Blu-ray.
At InterBee 2015, Sony officially exhibited the so-called HLG (Hybrid Log Gamma) standard. The HLG standard is registered by the BBC and NHK. In simple terms, a single signal can support HDR TV and non-HDR TV at the same time.
The working principle of HLG is to decode the highlight and low-light parts of the HDR signal in two different ways. The former uses a logarithmic curve and the latter a standard gamma curve. Compared with serious HDR TVs, non-HDR TVs receiving HLG have slightly different display effects, but the perception is very close, and the experience is still improved.
The so-called HDR technology is simply a technique that allows the highlights of an image to be exposed and the low-light is not exposed, which means that the details can be clearly displayed everywhere in the image. We often see the HDR three letters in photography, and it will also become the standard for future 4K TVs and 4K Blu-ray.