Graph Display Apparatus Color-Coding Numerical Data
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Solution Overview
Problem
Existing graph display technologies in electronic calculators lack the ability to effectively visually compare the relationship between graph data and numerical data items, relying solely on color differentiation which is insufficient for clear understanding.
Innovation Solution
A graph display apparatus with a list input unit, color designation unit, and graph display unit that associates and colors numerical data items, allowing users to input and display list data with designated colors, enabling better visualization of the relationship between graph and data items.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If graph display is merely effected in color, then visual expressive power is improved, but the ability to visually compare the mutual relationship between graph and numerical data items is insufficient
Solution Approach 1:
The patent applies color changes by assigning specific colors to different types of data items (e.g., red for actual values, blue for estimated values, green for reference values) and consistently applying these colors across both the list display and graph display. This allows users to visually compare the relationship between graph data points and their corresponding numerical data items through color matching, resolving the information loss problem while maintaining visual expressive power.
2Loss of information
If different colors are assigned to different data items, then visual comparison capability is improved, but device complexity increases
Solution Approach 1:
The patent uses parameter changes by defining color assignment rules based on data item characteristics (actual vs. estimated vs. reference values) rather than requiring complex user input. The system automatically determines colors based on the nature of the data, simplifying the color management process while maintaining effective visual comparison capabilities.
Solution Approach 2:
The system performs self-service by automatically assigning appropriate colors to different data items based on their inherent characteristics. The color designation unit automatically identifies whether a data item is actual, estimated, or reference data and applies the corresponding color without requiring manual user configuration, thereby reducing operational complexity while enhancing visual comparison capability.
Data Source
AI summary
There is provided a graph display apparatus including a list input unit configured to input list data including a plurality of numerical data items, a color designation unit configured to designate arbitrary colors for the numerical data items of the list data input by the list input unit, a list storage unit configured to store the list data input by the list input unit and information of the colors designated for the numerical data items by the color designation unit in a state where the list data and the information are associated with each other, and a graph display unit configured to color-display graph data, based on the list data and the information of the colors designated for the numerical data items, which are stored in the list storage unit.