Foveated Display Compensation for Cross Talk and Buffer Limits
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Solution Overview
Problem
Existing display technologies face challenges in efficiently managing varying resolutions in foveated imaging, leading to potential buffer overflow and increased computational and power requirements due to horizontal and multi-line cross talk artifacts.
Innovation Solution
Implementing a display system with display driver circuitry that adjusts pixel resolutions in foveated spaces and applies compensations for horizontal and multi-line cross talk, using intra-frame pauses and compensation circuits to optimize buffer management and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If foveated imaging with varying pixel resolutions is implemented, then power consumption is reduced and buffer requirements are decreased, but cross talk artifacts appear due to horizontal and multi-line variations in pixel groups
Solution Approach 1:
The patent applies local quality by implementing different resolutions for different groups of pixels within the same display frame. Specifically, a first group of pixels is rendered at full resolution while a second group of pixels is rendered at reduced resolution, allowing the system to optimize power consumption by reducing computational requirements for less critical display regions while maintaining high quality where needed.
Solution Approach 2:
The patent employs parameter changes by dynamically adjusting the resolution parameter for different pixel groups. The system varies the resolution from full to reduced based on the importance or visibility requirements of different display regions, thereby changing the computational and power parameters locally to achieve overall optimization.
2Quantity of substance
If foveated imaging with varying pixel resolutions is implemented, then buffer requirements are reduced, but cross talk artifacts appear due to horizontal and multi-line variations in pixel groups
Solution Approach 1:
The patent applies local quality by implementing different resolutions for different groups of pixels within the same display frame. Specifically, a first group of pixels is rendered at full resolution while a second group of pixels is rendered at reduced resolution, allowing the system to optimize power consumption by reducing computational requirements for less critical display regions while maintaining high quality where needed.
Solution Approach 2:
The patent employs parameter changes by dynamically adjusting the resolution parameter for different pixel groups. The system varies the resolution from full to reduced based on the importance or visibility requirements of different display regions, thereby changing the computational and power parameters locally to achieve overall optimization.
3Manufacturing precision
If compensation for cross talk artifacts is applied, then image quality is improved, but computational requirements and device complexity increase
Solution Approach 1:
The patent applies preliminary action by proactively compensating for cross talk artifacts during the image rendering process before display. The system identifies and corrects potential cross talk issues by adjusting pixel values in advance, preventing artifact formation rather than correcting them after they appear, thereby improving image quality without requiring complex post-processing.
Solution Approach 2:
The patent employs an intermediary approach by introducing compensation mechanisms that mediate between the varying resolution pixel groups and the final displayed image. The compensation circuit acts as an intermediary element that processes and adjusts the pixel data to eliminate cross talk artifacts, balancing image quality improvement with manageable computational overhead.
Data Source
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AI summary
An electronic device may include a display having a native domain. Images to be displayed may have a grouped domain, being foveated with groups having different resolutions based on a user's point of gaze and/or other characteristics. The images may be compensated in the grouped domain using one or more compensation circuits. For example, the foveated images may be compensated for horizontal cross talk, multi-line horizontal cross talk, and/or IR drops in the grouped domain. Alternatively or additionally, the display may include a frame buffer, and the images may be written into the frame buffer with intra-frame pauses. The intra-frame pauses may be initiated based on the foveation of a given image, or may be initiated in response to signals from the frame buffer that the frame buffer is full.