Screen Inspection Device Identifying Fatigue-Causing Color Combinations

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Solution Overview

Problem

Existing screen inspection technologies fail to identify undesirable color combinations that cause user fatigue and discomfort, even when screens are optimized for readability and harmony.

Innovation Solution

A screen inspection device and method that creates combinations of display elements, selects those with close proximity and significant color, saturation, and brightness differences, calculates appearance ratios, and determines if these ratios exceed thresholds to identify problematic color combinations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing screen inspection technologies are used to optimize readability and color harmony, then readability and color harmony are improved, but undesirable color combinations that cause user fatigue and discomfort are not identified

Engineering Contradiction:

ImprovereadabilityVSAvoiduser fatigue and discomfort

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The screen is divided into multiple display elements, and color combinations are analyzed by segmenting the screen into pairs of adjacent elements. The combination selecting unit creates element combinations by dividing the screen content into manageable pairs, allowing detailed inspection of specific color interactions that may cause fatigue.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The inspection goes beyond traditional readability checks by examining additional color attributes including saturation difference and brightness difference. The combination classifying unit applies multiple threshold conditions (color difference, saturation difference, brightness difference) to identify problematic combinations that traditional methods would miss.

Inventive Principle:

Principle #16Partial or excessive action

2Stability of the object's composition

If traditional color inspection methods are applied, then color harmony is maintained, but color combinations causing user fatigue are not detected

Engineering Contradiction:

Improvecolor harmonyVSAvoidundesirable color combinations

Core Design Contradiction:

Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The screen determination unit provides feedback by calculating the sum of appearance ratios and comparing it against a threshold. This feedback mechanism identifies whether problematic color combinations exceed acceptable levels, allowing for targeted improvements while maintaining overall color harmony.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system examines multiple color parameters simultaneously (color difference, saturation difference, brightness difference) rather than relying on a single harmony metric. By changing the inspection parameters to include saturation and brightness dimensions, the system detects undesirable combinations that traditional harmony-based methods would overlook.

Inventive Principle:

Principle #35Parameter changes

3Measurement precision

If all possible element combinations are analyzed, then comprehensive inspection is achieved, but processing complexity increases

Engineering Contradiction:

Improveinspection comprehensivenessVSAvoidprocessing complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The combination selecting unit extracts only those element combinations where the distance between elements is within a threshold value. This extraction process filters out irrelevant combinations, focusing processing power on adjacent element pairs that are most likely to cause visual fatigue.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The system applies multiple filtering conditions (distance threshold, color difference threshold, saturation difference threshold, brightness difference threshold) to progressively narrow down the combinations that require detailed analysis, managing complexity through staged filtering.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS9177528B2Screen inspection device, screen inspection method, and program

Publication Date: 2015.11.03 NEC CORP

AI summary

A combination selecting unit (20) creates a plurality of element combinations of which each is a combination of two display elements, and selects element combinations in which a distance between two display elements is a threshold value or less. A combination classifying unit (30) selects element combinations, in which any one of color difference, saturation difference, brightness difference, and both brightness and saturation of a color combination of two display elements exceed respective predetermined threshold values, from the element combinations. Then, the combination classifying unit (30) calculates an appearance ratio for each color combination. The appearance ratio is a ratio of the number of the element combinations belonging to the color combination to the total number of the element combinations created by the combination selecting unit (20). A screen determination unit (40) determines that the screen data in which the sum of the appearance ratios exceeds a threshold value has an undesirable color combination which makes the user feel fatigue or discomfort.