Gaze-Aware OLED Gate Driving for Resolution and Compensation Time
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Solution Overview
Problem
Existing OLED display technologies face challenges in maintaining high resolution due to insufficient compensation time for each row of sub-pixels, leading to reduced display effect.
Innovation Solution
A control method that adjusts gate driving signals based on gaze tracking, dividing the display area into gaze and non-gaze areas, and optimizing duty cycle, voltage, or frequency of gate driving signals to enhance display effect and resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If gate driving signals are uniformly applied to the entire display area, then the control method is simple, but the display effect is insufficient due to inadequate compensation time for each row of sub-pixels
Solution Approach 1:
The patent segments the display area into multiple scanning zones based on vertical position. Each scanning zone has its own gate driving signal with independently adjustable duty cycle. This segmentation allows the system to provide different compensation times to different regions, improving display effect while maintaining manageable control complexity through systematic zonation.
Solution Approach 2:
The patent applies local quality by assigning different duty cycles to gate driving signals of different scanning zones. Scanning zones closer to the gaze area receive larger duty cycles (more compensation time), while distant zones receive smaller duty cycles. This local differentiation optimizes display effect in the gaze area without uniformly increasing complexity across the entire display.
2Manufacturing precision
If compensation time for each row of sub-pixels is increased, then display effect improves, but maximum supportable resolution decreases due to time constraints
Solution Approach 1:
The patent changes the duty cycle parameter of gate driving signals based on scanning zone position. By adjusting this parameter locally rather than uniformly, the system achieves adequate compensation time for gaze-area scanning zones without proportionally increasing time consumption across the entire display, thereby maintaining higher maximum supportable resolution while improving display effect where needed.
Solution Approach 2:
The patent applies partial action by providing excessive compensation time (larger duty cycle) only to scanning zones in or near the gaze area, while using standard or reduced compensation time for other zones. This selective approach ensures display quality in the important gaze region without the penalty of uniformly reducing resolution across the entire display.
3Manufacturing precision
If duty cycle of gate driving signal is increased, then compensation time increases improving display effect, but energy consumption increases
Solution Approach 1:
The patent applies local quality by increasing duty cycle (and thus energy consumption) only in scanning zones that are relevant to the gaze area, while maintaining lower duty cycles in distant zones. This localized approach improves display effect where the user is looking without proportionally increasing energy consumption across the entire display panel.
Solution Approach 2:
The patent uses partial excessive action by applying larger duty cycles only to specific scanning zones near the gaze area rather than uniformly across the display. This provides the necessary compensation time for optimal display effect in the gaze region while limiting energy consumption increases to only the necessary portions of the display.
Data Source
AI summary
The present disclosure provides a control method for a display panel, a control device thereof, and a display device. This control method includes: obtaining spatial position coordinates of a pupil of a user; determining coordinates of a gaze point in a display area of a display panel viewed by the user according to the spatial position coordinates of the pupil; determining an area range that the pupil of the user is gazing in the display area according to the spatial position coordinates of the pupil, the coordinates of the gaze point and a preset visual angle; determining a gaze area and a non-gaze area in the display area according to the area range, wherein the gaze area is adjacent to the non-gaze area; and adjusting a first gate driving signal input to the gaze area and a second gate driving signal input to the non-gaze area.