Backlight Control Synchronization in Display Devices

The patent divides the frame interval into multiple sub-intervals (first field interval and second field interval) and processes image data for each sub-interval separately. This segmentation allows the system to achieve frame rate conversion effects without requiring a complete frame memory, as each sub-interval can be processed independently with reduced memory requirements.

The patent performs preliminary processing of image data by generating intermediate image data through interpolation between adjacent frames before display. This preliminary action includes calculating intermediate pixel values and preparing adjusted image data in advance, enabling smooth motion representation without needing to store entire frames in memory.

The patent generates histograms and calculates backlight control signals in advance for each sub-interval based on corresponding image data. By performing this calculation preliminarily and synchronizing it with the divided frame intervals, the system eliminates the time lag between image display and backlight adjustment, achieving both power efficiency and synchronization accuracy.

The patent segments the backlight control into multiple sub-intervals corresponding to field intervals, with each sub-interval having its own synchronized histogram and control signal. This segmentation allows precise temporal matching between image data and backlight brightness adjustments, eliminating synchronization errors that would occur with single-frame processing.

The patent implements periodic updates of display images at higher frequency by dividing each frame into multiple fields and updating each field periodically. This periodic action with increased update frequency reduces the duration of retinal persistence effects, thereby reducing motion blur while maintaining display continuity through the sequential presentation of light and dark fields.

The patent dynamically adjusts display parameters by inserting black fields between image fields and varying the timing of field presentations. This dynamic approach allows the system to adapt the display timing to reduce motion blur effects while maintaining overall image continuity, transforming the static hold-type display into a more dynamic presentation.