Why in News:
- Google is said to be testing support for variable refresh rates (VRR) in the Chrome OS
- The feature could improve gaming experience
What is VRR?
- Refresh rate is the number of times a display is capable of refreshing in a second. It is measured in hertz (Hz).
- So, a 30 Hz or a 60 Hz display can refresh 30 or 60 times per second, respectively. The higher the refresh rate, the better the quality of viewing experience.
- Displays with over 120 Hz can deliver a smoother and more comfortable viewing experience. This is necessary while playing video games or watching videos.
- VRR supports a wide range of refresh rates, allowing its refresh rate to change in real-time based on the frames-per-second (FPS) rate coming from a source device such as a gaming console.
- VRR, which is also termed as dynamic refresh rate or adaptive refresh rate by different device makers, is designed to eliminate syncing issues that arise when the refresh rate of a display does not match with the FPS of the content from a source device.
- Issues such as screen-tearing, judder (wobbling effect) and lag are common when refresh rate and FPS are not synchronised.
- This screen technology enables a monitor or a TV to communicate with a gaming console or a media streaming device much more effectively.