Display Panel Deterioration Compensation Using Sensed Current Ratios

The patent applies local quality by measuring deterioration specifically at reference pixels located in peripheral regions of the display panel, where deterioration is most pronounced. This localized measurement approach allows for more accurate compensation calculations that can be applied across the entire panel, addressing the variation between cells by focusing on the most indicative areas for deterioration assessment.

The patent implements feedback by continuously monitoring the actual luminance output of reference pixels and comparing it against expected values. This feedback mechanism enables real-time adjustment of compensation parameters, allowing the system to adapt to deterioration changes and maintain accurate compensation over time, thereby reducing compensation errors.

The patent applies preliminary action by pre-identifying reference pixels in peripheral regions before they undergo significant deterioration. These reference pixels are selected and monitored in advance, allowing the system to track deterioration trends from the early stages. This preliminary identification enables proactive compensation adjustments that maintain display quality without interrupting normal operation.

The patent replaces direct physical measurement of each pixel's deterioration with an indirect optical measurement system. By measuring the luminance output of reference pixels and using this information to calculate compensation parameters, the system substitutes complex direct physical analysis with a more efficient optical measurement approach, maintaining precision while improving operational continuity.