Single-Button Display Menu Control Using Press-Time Input
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Solution Overview
Problem
Existing display apparatuses face challenges in providing intuitive and cost-effective input methods, as touch sensors may not recognize insulators and require large circuit board areas for jog switches or tact switches, leading to increased manufacturing costs and complexity.
Innovation Solution
A display apparatus with an input unit that includes a single physical function key or touch panel, utilizing a processor to differentiate between short clicks and long presses based on input time, maintaining execution speed within a preset critical time and accelerating it thereafter, while guiding functions through on-screen displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If touch sensor is used for input, then ease of operation is improved, but reliability deteriorates when insulator is used
Solution Approach 1:
The patent introduces a conductive layer as an intermediary between the insulator (finger) and the touch sensor. This conductive layer enables electrical contact for touch detection while allowing the user to operate with an insulator (finger), thus resolving the contradiction between ease of operation and recognition accuracy
Solution Approach 2:
The patent changes the electrical conductivity parameter of the input interface by introducing a conductive layer. This allows the system to recognize touches from insulators (fingers) by providing a conductive path, thereby maintaining reliability while preserving ease of operation
2Reliability
If jog switch or tact switches are used for input, then reliability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent makes a single input device (touch sensor with conductive layer) perform multiple functions that previously required separate components. The touch sensor can detect both conductive and insulator touches, replacing the need for specialized switches, thereby reducing device complexity while maintaining reliability
Solution Approach 2:
The patent extracts the conductivity requirement from the user's finger and places it in a dedicated conductive layer. This allows the touch sensor to reliably detect touches without requiring the user's finger to be conductive, simplifying the overall input mechanism
3Device complexity
If touch sensor is used for input, then device complexity is reduced, but reliability deteriorates when insulator is used
Solution Approach 1:
The conductive layer serves as a mediator that enables reliable touch detection from insulators (fingers) while keeping the touch sensor structure simple. This intermediary layer resolves the contradiction by providing the necessary electrical contact without complicating the device
Data Source
AI summary
A display apparatus includes a display, a single physical button and a processor configured to control the display to display a guide user interface (UI), a selection UI and a plurality of menu items, based on a user input received via the single physical button being identified as a short click input, move the selection UI from one menu item among the plurality of menu items to another menu item among the plurality of menu items, based on the user input being identified as a long press input, select the one menu item and execute a control function corresponding to the selected one menu item, and based on an execution of the control function, control the display to display a setting UI indicating a current setting value of the control function.