Flicker measurement

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Flicker can occur in all sources that emit light and flicker measurements are commonly used in the display and lighting industry. Flicker is a frequency domain effect and can cause discomfort in humans and animals, additionally in some cases it can lower the lifetime of a device.In an LCD, flicker is a phenomenon that is caused by Vcom offset usually resulting in a frequency of half the frame frequency. In lighting we can differentiate high frequency flicker or stroboscopic effects and low frequency flicker often caused by bad power supplies. Flicker for display measurement is defined as the visible flicker only.