Gaze-Adaptive Display Power Optimization
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Solution Overview
Problem
Personal immersive displays face challenges in optimizing image display for single users and reducing power consumption, as they often rely on built-in batteries and require efficient power management to enhance user experience.
Innovation Solution
A personal immersive display system comprising first and second pixel arrays, a camera, and a data processor that captures pupil positions to detect the user's gaze and reduce the resolution or brightness of image data in non-gaze areas, thereby conserving power and improving the sense of immersion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the display device maintains high resolution and brightness across the entire pixel array, then image quality is improved, but power consumption increases
Solution Approach 1:
The patent applies local quality by differentiating the display characteristics between gaze and non-gaze areas. The pixel array is divided into two regions: gaze area pixels maintain high resolution and brightness to ensure image quality, while non-gaze area pixels reduce resolution and brightness to lower power consumption. This spatial differentiation resolves the contradiction between maintaining overall image quality and reducing total power consumption.
Solution Approach 2:
The patent implements dynamics by making the display parameters adaptive rather than static. The system dynamically adjusts the resolution and brightness of pixel arrays based on real-time gaze detection data. As the user's gaze moves across the display, the system continuously reconfigures which areas receive high-quality rendering versus reduced-quality rendering, optimizing the balance between image quality and power consumption in real-time.
2Manufacturing precision
If the display device processes and renders image data for the entire pixel array at full resolution, then image quality is improved, but processing time and power consumption increase
Solution Approach 1:
The system applies local quality by selectively processing image data at different resolutions for different spatial regions. Full-resolution processing is applied only to the gaze area where the user is looking, while non-gaze areas receive downsampled or lower-quality rendering. This reduces the total computational workload and processing time while maintaining perceived image quality in the critical gaze region.
Solution Approach 2:
The patent applies partial action by performing full processing only on the necessary portion of the pixel array (the gaze area) rather than the entire array. The system identifies and processes only the subset of pixels that contribute to the user's current visual experience, leaving the remaining pixels with reduced processing. This eliminates wasted computational effort on areas the user is not viewing.
3Ease of operation
If the display device uses built-in batteries for power supply, then portability and user experience are improved, but power consumption becomes a limiting factor
Solution Approach 1:
The patent addresses the power consumption limitation by applying local quality optimization across the display system. By reducing the power requirements of individual pixel arrays in non-gaze areas through lower resolution and brightness, the overall system power consumption decreases. This enables the use of smaller, lighter batteries while maintaining adequate operating time, thereby improving portability without sacrificing user experience in the critical gaze region.
Solution Approach 2:
The system uses dynamic gaze-based adaptation to optimize power consumption in real-time. By continuously tracking user gaze and adjusting the active pixel arrays accordingly, the system ensures that full power is consumed only when and where necessary for the user's current viewing needs. This dynamic optimization extends battery life and reduces the power capacity requirements, improving portability.
Data Source
AI summary
A personal immersive display device and a driving method thereof are disclosed. The display device comprises a first display panel to which first content data is provided; a second display panel to which second content data is provided; a camera that receives data associated with positions of a user's left pupil and right pupil; and a data processor that processes the data associated with the position of the user's left pupil and right pupil to determine a right gaze point and a left gaze point, detects a first gaze area on the first display panel and a second gaze area on the second display panel based on the right gaze point and left gaze point, wherein the data processor reduces resolution or brightness of the first and second content data provided to areas outside the first gaze area and second gaze area.