Display Panel Sensor Reset Timing for Position-Specific Illuminance

The display area is divided into multiple distinct areas (first area, second area, third area), and each area is assigned a separate reset control signal (first reset control signal, second reset control signal, third reset control signal). This segmentation allows independent control of reset timing for different sensing regions, enabling precise illuminance detection at specific panel positions without requiring a single complex global control signal.

Each area is given different local characteristics through area-specific reset control signals with different falling time points. The first area receives a reset signal with a first falling time point, the second area receives a reset signal with a second falling time point, and the third area receives a reset signal with a third falling time point. This local differentiation enables tailored illuminance detection for each region while maintaining overall system functionality.

Reset control signals are provided to different areas in a periodic, sequential manner rather than simultaneously. The first reset control signal is provided to the first area during a first reset interval, the second reset control signal is provided to the second area during a second reset interval, and the third reset control signal is provided to the third area during a third reset interval. These intervals are arranged to be non-overlapping, creating a periodic sequence of reset operations that ensures accurate illuminance detection in each area without interference from simultaneous resets.

Before illuminance detection in each area, a reset control signal is provided in advance to reset the sensing element for that specific area. The first reset control signal resets the first area before its detection phase, the second reset control signal resets the second area before its detection phase, and the third reset control signal resets the third area before its detection phase. This preliminary resetting action ensures that each sensing element starts its measurement cycle from a known state, improving detection accuracy.