Display Input Interface Using Character Order Selection Buttons
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Solution Overview
Problem
Existing display devices require users to manually move a cursor to input characters using a software keyboard, which is cumbersome and may be difficult to display effectively.
Innovation Solution
A display device that includes character input buttons assigned with multiple characters and an order designation button to facilitate character input without a software keyboard, using an operation terminal to designate the input order and acquire characters based on button presses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a software keyboard is used for character input, then character input function is provided, but user operation becomes troublesome and complex
Solution Approach 1:
The patent extracts the character input function from the complex software keyboard interface and implements it through simple button presses on the operation terminal. Each button is assigned multiple characters, allowing direct character input without cursor navigation, thus eliminating the troublesome software keyboard operation while maintaining the character input function.
Solution Approach 2:
Instead of moving a cursor through a software keyboard to select characters (conventional approach), the patent inverts the logic by assigning multiple characters to each button and selecting characters based on their order (first, second, third characters). This inversion transforms the complex cursor-navigation process into simple button presses with immediate character output.
2Adaptability or versatility
If a software keyboard is displayed, then character input is enabled, but display performance may be insufficient
Solution Approach 1:
The patent makes each button on the operation terminal multi-functional by assigning multiple characters to each button. This universal design allows a single button to represent multiple character options, improving adaptability for different input needs while maintaining reliable display performance through simplified button mapping rather than complex software keyboard rendering.
3Ease of operation
If characters are input using traditional methods, then input function is provided, but security vulnerability exists
Solution Approach 1:
The patent implements self-service character input where buttons are pre-assigned with multiple characters in a fixed order. Users simply press buttons to select characters based on their predetermined sequence (first, second, third characters), eliminating the need for cursor navigation and software keyboard display. This self-service approach improves input convenience while enhancing security by preventing unauthorized access to input characters through a more direct and controlled input mechanism.
Data Source
AI summary
A display device includes a display processing unit configured to display character input buttons, each of which is assigned a plurality of characters, and an order designation button for designating the order of a character capable of being input among the characters assigned to the character input button, an order designation unit configured to designate the order of the character capable of being input among the characters assigned to the character input button every time a button corresponding to the order designation button among buttons on an operation terminal is pressed, and an input character acquisition unit configured to acquire the character corresponding to the order designated by the order designation unit among the characters assigned to the character input button corresponding to the pressed button as an input character when the button corresponding to the character input button among the buttons on the operation terminal is pressed.