37‐2: Enhancing VRR Flicker Index Using Time‐Domain Analysis

The cutting‐edge displays are emerging with a technology called VRR (Variable Refresh Rate), which supports a wider range of refresh rates. Although VRR can reduce power consumption, users may experience flickering issues as the display refresh rate varies depending on the image characteristics (e.g. speed). Therefore, more accurate method for predicting flicker prediction in VRR displays is necessary. This research purposes a flicker prediction model for VRR displays. First, we defined the situation that VRR flicker appears through measuring the waveforms in two actual VRR displays. Next, we identified the two factors affecting the perception of VRR flicker and we conducted the psychophysics experiment. Finally, we introduce time‐domain analysis using Impulse Response Function (IRF) to capture aperiodic luminance fluctuations and predict the perception of VRR flicker. These results demostrate that time‐domian analysis with an appropriate weighting function offer a more accurate prediction of flicker perception in VRR displays.