We are now familiar with screens with high refresh rates in mobile space, as the first 90Hz pioneering devices last year have now evolved into even faster 120Hz refresh smartphones becoming standard. While all of these devices offer enhanced user experiences while providing extra smooth experiences for gestures and games, they all come with obvious compromises when it comes to energy efficiency and battery life.
Today, Samsung Display is announcing that they are for the first time unveiling next-generation display panels that allow refresh rate change technology, facilitating one of the biggest drawbacks of current-generation refresh smartphones. . The new technology is producing its debut on the new Galaxy Note20 Ultra, which should be available to the public in just two short weeks.
Currently, the biggest problem for devices that use a high refresh rate screen is the fact that the entire current application still works with a certain fixed refresh rate no matter what the screen content is, meaning that they always climb to 60, 90 or 120Hz depending on the smartphone.
This year’s 120Hz display smartphones in particular have seen the effect of drastically increased traction when operating under this higher refresh rate. Although these phones offer the ability to switch between different refresh rates, we can not call these mechanisms display variable level change (VRR) as they can not pass smoothly and quickly between these modes. As such, even when you are displaying a regular static display, the display continues to refresh at 120Hz and suffers a major penalty for power extraction, which is less than ideal.
Samsung’s new display panel used in the new Note20 Ultra panel is actually described as a VRR panel, with Samsung promising new refresh rate modes such as the ability to operate in 120, 60, 30 and 10Hz formats . The latest super low refresh rates so far have never been used on smartphones. Samsung describes that the screen will now be able to sit in this new 10Hz mode when viewing static content.
“Existing intelligence panels offer only a fixed refresh rate. They cannot automatically calibrate a phone refresh rate, which will result in image flashing caused by brightness changes at lower refresh rates. Samsung Display’s new Blizzard ** eliminates spark plugs for operating frequencies as low as 10Hz. “
Samsung describes using a new backplane technology to achieve this – while we have not had an official response from Samsung to our questions about this issue, there are rumors that this is the generation in which the company has introduced LTPO backplane technology, allowing it higher circuit breaker performance and lower power consumption.
Another question that remains to be answered is the exact details on Samsung VRR performance, and whether it is a proper application of adaptive synchronization technology and whether there is a better rate refresh rate at 10-120Hz beyond just the examples mentioned 60 and 30Hz.
Currently such a VRR implementation would also require a deeper integration of the software stacks into the OS, the GPU driver and the screen driver to fully enable a hassle-free operation that would work transparently on any static content or low-frame – we’ll have to investigate this once again The Note20 Ultra Devices are officially out.
Samsung claims that the new technology should be able to reduce the power consumption of the phone screen panel by 22% in overall usage. Moreover, there is a statement of it using only 60% of the power of the current screens when it is operating in super low 10Hz mode – although both of these figures do not specify on what basis they are being compared (60 or 120Hz screens ?).
Beyond making 120Hz a viable option for everyday use without much impact on batteries, the new technology should have the potential to improve energy efficiency even beyond current 60Hz screens, which we hope will significantly use the boost of battery life in future devices of the next gene.