Gaze-Tracked Display Zoning for Brightness and Power Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices struggle to efficiently adjust image display characteristics based on user gaze direction, leading to inefficient power consumption and user perception.
Innovation Solution
A display device that tracks user gaze direction and divides the image display area into multiple zones, modulating brightness and luminance based on image type (still or moving) to optimize power usage and perception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the entire image display area maintains high brightness for clear user perception, then user perception quality is improved, but power consumption increases
Solution Approach 1:
The patent applies local quality by dividing the display area into multiple zones with different brightness characteristics. The center region maintains high brightness for optimal user perception, while peripheral regions use lower brightness. This creates spatially varying display quality that matches human visual attention patterns, reducing overall power consumption while preserving user experience in critical areas.
Solution Approach 2:
The patent segments the image display area into multiple distinct regions (center region and peripheral regions) that can be independently controlled. This segmentation allows differential brightness modulation across the display, enabling the system to reduce power consumption in less critical areas while maintaining high brightness where users naturally focus their attention.
2Use of energy by moving object
If the display device divides the image display area into multiple regions with different brightness levels, then power consumption is reduced, but display uniformity deteriorates
Solution Approach 1:
The patent intentionally creates non-uniform display characteristics by applying different brightness levels to different regions. This local quality approach accepts reduced uniformity as a necessary trade-off to achieve power consumption reduction, while the non-uniformity is designed to match human visual perception patterns and maintain overall viewing comfort.
3Productivity
If the display device tracks and analyzes user gaze direction in real time, then display efficiency is improved, but device complexity increases
Solution Approach 1:
The patent introduces a gaze tracking processing unit as an intermediary component that captures images, detects eye position and gaze direction, and provides this information to the main driver circuit. This mediator enables intelligent display adaptation without requiring complex integration throughout the entire system, managing complexity through functional decomposition.
Solution Approach 2:
The patent implements a feedback loop where the gaze tracking processing unit continuously monitors user eye position and gaze direction, and the main driver circuit adjusts display parameters based on this feedback. This real-time feedback mechanism enables dynamic optimization of display efficiency while maintaining manageable system complexity through modular architecture.
Data Source
AI summary
An image display device includes: a display panel configured to display an image in an image display area; a gaze tracking processor configured to analyze image data for an image on a front side captured by a built-in camera of the display panel and to detect gaze tracking coordinate information; and a main driver circuit configured to divide and separate the image display area into a plurality of divided display areas based on the gaze tracking coordinate information, and to modulate a grayscale value or a luminance value of the image data for at least one of the divided display areas according to still image or moving image features to thereby control an image display operation for at least one of the divided display areas.