Eye Distance Detection for Dynamic Display Scaling
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Solution Overview
Problem
Small displays on mobile communication devices face challenges in conveying large amounts of information, requiring users to adjust their distance or zoom in, and individuals with vision disorders need enhanced text size that current systems cannot efficiently provide.
Innovation Solution
A method and device that determine the distance between the user's eye and the device using a distance sensor, adjust the content scale based on this distance, and utilize an eye tracking sensor to focus on specific content areas, allowing for dynamic scaling to improve readability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the display size is kept small for portability, then the device is easy to carry, but the user cannot view content clearly without moving the device closer to their eyes
Solution Approach 1:
The patent applies dynamics by making the display content scale dynamically adjustable based on user interaction. When the user moves the device closer to their eyes, the system detects this movement and automatically enlarges the content displayed, allowing the display to adapt its scale in real-time rather than remaining static. This resolves the contradiction by enabling clear content viewing at close distances while maintaining the small physical display size for portability.
2Measurement precision
If the user moves the device closer to their eyes to view content clearly, then the content becomes more visible, but the user cannot simultaneously view other portions of the content
Solution Approach 1:
The patent applies local quality by implementing focal point-based rendering where only the specific portion of content near the user's eye is displayed at high resolution and appropriate scale, while other portions are rendered at lower resolution or omitted. This allows the user to view detailed content clearly at close distance without requiring the entire content area to be visible, effectively resolving the contradiction between focused visibility and overall content coverage.
3Measurement precision
If the user wants to enlarge a portion of the content, then the specific content becomes more visible, but the user cannot perform this task without manual intervention
Solution Approach 1:
The patent applies self-service by enabling automatic content scaling based on detected eye position and device movement. The system monitors when the user moves the device closer to their eyes and automatically enlarges the relevant content portion without requiring manual zoom or scale commands. This eliminates the need for manual intervention to enlarge content, resolving the contradiction between improved content portion visibility and ease of operation.
4Adaptability or versatility
If users with vision disorders need content enlarged more, then the content becomes more accessible, but the system cannot automatically accommodate different visual needs
Solution Approach 1:
The patent applies dynamics by implementing a dynamic scaling system that automatically adjusts content size based on real-time detection of device movement and eye position. Users with vision disorders can simply move the device closer to their eyes, and the system automatically provides the necessary magnification without requiring complex manual adjustments or pre-configured settings. This resolves the contradiction by making the system adaptable to different visual needs through automatic dynamic adjustment rather than complex control mechanisms.
Data Source
AI summary
A method includes determining a distance between an eye and a device, and adjusting a scale of content displayed on the device based on the distance.