Display Colour Optimization via Reaction Time Measurement
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Solution Overview
Problem
There is a lack of reliable, objective methods to assess and mitigate screen fatigue caused by prolonged exposure to visual display units, leading to visual stress, eye strain, and increased risk of repetitive strain injuries, with existing solutions requiring subjective measurements or skilled professionals.
Innovation Solution
A method and apparatus that determine an optimum colour combination for display screens by measuring reaction times to different colour combinations, allowing for automatic selection of a comfortable colour scheme without the need for supervision, using a colour chart to interpolate and extrapolate optimal settings for reducing fatigue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If subjective measurement methods are used to assess screen fatigue, then user experience can be evaluated, but the assessment lacks objectivity and reliability
Solution Approach 1:
The patent replaces subjective human assessment with an automated optical measurement system that uses photodetectors and image processing to objectively measure ocular response parameters, eliminating the need for subjective user feedback while maintaining assessment reliability
Solution Approach 2:
The system enables self-assessment by automatically capturing and analyzing ocular responses without requiring user intervention or interpretation, allowing the subject to objectively assess their own screen fatigue through automated measurement of pupillary and ocular movement parameters
2Measurement precision
If skilled professionals supervise the assessment process, then measurement accuracy improves, but the process becomes more complex and less accessible
Solution Approach 1:
The system performs self-calibration and automated analysis of ocular responses, eliminating the need for skilled professionals to interpret results while maintaining measurement precision through built-in reference standards and automated image processing algorithms
Solution Approach 2:
The system incorporates automated feedback mechanisms that compare measured ocular parameters against reference values and provide real-time guidance, replacing the need for professional supervision with algorithmic quality control that maintains measurement accuracy
3Reliability
If invasive methods are used to measure fatigue, then physiological data can be obtained, but user comfort and acceptance decrease
Solution Approach 1:
The patent replaces invasive physiological measurements with non-invasive optical imaging that captures ocular responses through standard cameras or photodetectors, obtaining reliable fatigue data without physical contact or discomfort to the subject
Data Source
AI summary
Recently there has been an increase in awareness of work/life stressors and their debilitating affect on human functionality. These stressors can arise from environmental conditions, poor quality artificial lighting and/or too much or too little ambient lighting, poorly configured or ineffectual display screens. The invention includes a method of presenting an image to be viewed by the subject on a background of a first color, and by way of an iterative process a user is led through a series of screens in order to determine their optimum color combination. A means is provided for storing reaction times and for varying the image to be viewed in a second and subsequent interval, so as to derive second and subsequent reaction times. An optimum color is selected that corresponds to the quickest reaction time.