Display Light Source Luminance Compensation for Low Frame Rate Leakage

The light source is activated during the vertical blank period before the active display period to preemptively compensate for the luminance decrease caused by pixel leakage current. This preliminary action ensures that when the active period begins, the light source is already at the required luminance level, counteracting the degradation effect of leakage current that occurs during the inactive period.

The light source driver operates periodically by alternating between active periods (during active display) and inactive periods (during vertical blank period). During inactive periods, the light source is driven at a first luminance level, and during active periods, it transitions to a second luminance level. This periodic modulation compensates for luminance loss while managing power consumption across frame cycles.

Instead of maintaining full luminance continuously, the light source driver applies partial action by operating at a reduced first luminance level during vertical blank periods and transitioning to a higher second luminance level during active periods. This partial operation during inactive periods provides sufficient compensation for leakage current effects while avoiding the excessive power consumption that would result from continuous high-luminance operation.

The light source driver dynamically adjusts the luminance level based on the operational phase. During inactive periods, it sets the light source to a first luminance level, and during active periods, it transitions to a second luminance level. This dynamic adjustment optimizes the balance between display quality maintenance and power consumption management.