Circular Touch Interface for Wearable Parameter Selection
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Solution Overview
Problem
Wearable electronic devices, such as smartwatches, face challenges with small touch screens and complex gesture operations, making it inconvenient for users to adjust and view parameter settings due to limited screen size and obstructed views.
Innovation Solution
An operation method involving a touch display with a circular interface and surrounding area, where users can select parameter values by touching the circular area and sliding along the peripheral region to switch between coarse and fine adjustment interfaces, allowing parameter selection with a single sliding gesture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the wearable electronic device uses a small touch screen, then the device size is reduced and can be worn on the wrist, but the touch operation becomes inconvenient and the display area is insufficient for parameter adjustment
Solution Approach 1:
The touch screen interface is segmented into distinct functional zones: a first area for displaying parameter adjustment options and a second area for confirming selections. This segmentation allows each zone to be optimized for its specific function, enabling convenient operation on a small screen by dividing the limited space into purposeful sections rather than attempting to fit all functions into a single undifferentiated area.
2Adaptability or versatility
If vertical or horizontal gestures are used to change settings, then parameter adjustment is possible, but the operation becomes complicated and the display screen is covered by user's fingers
Solution Approach 1:
The confirmation action is extracted from the parameter adjustment process. Instead of using complex gestures to both adjust and confirm parameters, the system separates these functions: parameter adjustment is done by scrolling in the first area, while confirmation is achieved by a simple tap in the second area. This extraction simplifies the operation sequence and reduces the complexity of gesture requirements.
Solution Approach 2:
The second area serves as an intermediary confirmation zone between the parameter adjustment area and the final setting application. This intermediary area provides a dedicated space for users to confirm their selections without interfering with the parameter adjustment display, allowing clear visual feedback while maintaining simple tap-based confirmation operation.
3Productivity
If the display screen is scrolled to adjust numerical values, then parameter selection is possible, but most of the display screen is covered by user's fingers making it difficult to view the content
Solution Approach 1:
The display is segmented into a first area showing parameter options and a second confirmation area, allowing the parameter list to remain visible in the first area while the user interacts with the second area for confirmation. This segmentation prevents the complete coverage of display content by the user's finger during operation.
Solution Approach 2:
The mechanical scrolling action is replaced with a more efficient interaction model: users can directly tap the second area to confirm the currently selected parameter without needing to scroll through the entire list. This substitution reduces the physical movement required and maintains better visibility of the parameter options throughout the interaction.
Data Source
AI summary
An electronic device and an operation method of parameter selection are provided. According to the method, a first parameter adjustment interface is displayed on a touch display. The first parameter adjustment interface includes an inner circular area and a surrounding area surrounding the inner circular area. The surrounding area closest to the touched first position corresponds to a first parameter value. When the object slides from the first position to a second position of the peripheral region, the touch display is switched to a second parameter adjustment interface The selected area of the second parameter adjustment interface displays the first parameter value. When the object slides from the second position to a third position along the peripheral region, the selected area is switched to display a second parameter value corresponding to the third position.