Touchscreen Segmented Sensor Design for Simplified Appliance Control
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Solution Overview
Problem
Household appliances with touchscreens face usability challenges due to complex hierarchies of programs and settings, leading to user overwhelm and potential non-optimal operation, especially when dealing with numerous executable programs and parameter options.
Innovation Solution
A household appliance design featuring an elongated, flat capacitive touch sensor element with at least three segments, where each segment represents a different value of an adjustable control variable, allowing users to set parameters intuitively and preventing unfavorable combinations through stored dependencies, accompanied by display elements for clear information presentation and acoustic/visual feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a touchscreen with many programs and settings is provided, then the functionality and versatility of the household appliance is improved, but the ease of operation deteriorates due to complex hierarchies overwhelming users
Solution Approach 1:
The touchscreen interface is segmented into different display modes (overview mode showing all programs, detailed mode showing specific settings). This allows users to first see the complete program portfolio at a glance, then drill down into specific settings only when needed, reducing cognitive overload while maintaining full functionality.
Solution Approach 2:
The display hierarchy dynamically adapts based on user interaction. The system transitions between different levels of detail - from a simplified overview showing only program names in normal operation, to detailed setting options when a user selects a program. This dynamic adjustment ensures the interface remains simple during routine use but provides full functionality when required.
2Device complexity
If a touchscreen with limited display area is used, then the device complexity is reduced, but the ability to display all programs and settings simultaneously deteriorates
Solution Approach 1:
The interface uses temporal dimension (time-based display sequencing) to overcome the limited spatial dimension of the touchscreen. Instead of trying to display all information simultaneously on the limited screen area, the system presents information in sequences - first showing program names, then displaying detailed settings when selected. This temporal unfolding allows complete information to be conveyed without overwhelming the limited display space.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances user intuitiveness and clarity in operating household appliances by simplifying the setting of control variables, reducing errors, and enabling efficient operation while ensuring safe and optimal usage.
Implementation Method 1
a capacitive sensor electrode as part of a touch capacitor, which are arranged at a distance from the control surface, so that when the control surface is touched, a capacitance of the touch capacitor can be changed
Data Source
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AI summary
The invention relates to a domestic appliance for treating objects, comprising a control device and an operating device designed as an external or internal touch screen (1), wherein the control device is designed to present a display field (2, 4, 6, 12, 18) on at least one part of the touch screen (1) within a screen display (1), in which display field at least one operating element (5, 10, 17, 19, 22) and at least one display element (3, 7, 8, 9, 14, 15, 16) for setting and displaying a control variable of the domestic appliance that can be set by touch are arranged, wherein (a) the at least one operating element (10, 17, 22) contains an elongate, two-dimensional sensor element (10, 17, 22) having a first segment (23) and at least two further segments (24), wherein a lowest value of the settable control variable or an OFF function for deactivating the control variable is associated with the first segment (23) and different values of the settable control variable are associated with the at least two further segments (24); and (b) the control device is designed to present at least two display elements (8, 9, 15, 16) after and/or at the same time as the sensor element (10, 17, 22) is touched, wherein the first display element (8, 15) displays the lowest settable value of the control variable or the OFF function and the second display element (9, 16) display the highest settable value of the control variable. The invention further relates to a method for operating said domestic appliance.