Electronic Device Display Control for Mathematical Formula Management
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Solution Overview
Problem
Conventional scientific calculators lack the ability to efficiently input and display multiple mathematical formulas, making it difficult for users to manage and utilize calculation results effectively.
Innovation Solution
An electronic device with a processor that allows inputting and displaying multiple mathematical formulas on a liquid crystal display, differentiating current and previous formulas by varying their gray levels, enabling users to easily track input status and utilize calculation results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple mathematical formulas are displayed on a liquid crystal display, then the quantity of information displayed is improved, but the ease of operation deteriorates due to difficulty in distinguishing current and previous formulas
Solution Approach 1:
The patent applies local quality by assigning different gray levels to different types of mathematical formulas. Current formulas are displayed in a first gray level while previous formulas are displayed in a second gray level, creating local visual differences that help users distinguish between formula types without changing the overall display structure or requiring additional user actions.
2Productivity
If multiple mathematical formulas are input and stored, then the productivity is improved, but the device complexity increases due to need for tracking input status
Solution Approach 1:
The patent uses gray level changes (a form of visual property change) to indicate the input status of mathematical formulas. By displaying current formulas in a first gray level and previous formulas in a second gray level, the system provides visual feedback about the state of each formula without requiring complex status tracking interfaces or additional device components.
Data Source
AI summary
A processor performs processing which includes inputting a plurality of mathematical formulas in response to operations performed on operation keys, displaying a list of the plurality of inputted mathematical formulas on a display, and displaying, in different display forms, a first mathematical formula which is a mathematical formula currently being inputted and a second mathematical formula which is a mathematical formula previously inputted, when displaying the list of the plurality of mathematical formulas.