Touch Panel State Switching for Unintended Operation Prevention
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Solution Overview
Problem
On touch panels of limited size, there is a risk of unintended processes being executed when icons are erroneously touched before the intended touch region, leading to user errors and unintended operations.
Innovation Solution
An electronic apparatus with a touch detection unit, switching unit, display control unit, and control unit that allows for separate states where touch operations are accepted or rejected, enabling users to confirm display content while minimizing unintended processes by differentiating between touch regions and icons through state switching and display control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a touch region and an icon display region are separately provided on a touch panel, then the user can confirm display content of the icon, but the user may erroneously touch the icon before the touch region, causing unintended operations
Solution Approach 1:
The icon display region is dynamically switched between a display state (where the icon is visible but touch is disabled) and a touch acceptance state (where the icon is hidden and touch is enabled). This dynamic switching allows the system to adapt to different operational phases, enabling the user to confirm display content when the icon is visible while preventing erroneous touches when the icon is hidden but the touch region is active.
2Reliability
If the icon display region is hidden to prevent erroneous touches, then operation accuracy improves, but the user cannot confirm display content of the icon
Solution Approach 1:
The system dynamically switches the icon display region between hidden and visible states based on the operational phase. When the touch region needs to accept touches, the icon is hidden. When the user needs to confirm display content, the icon is displayed but touch is disabled. This dynamic control allows both high operation accuracy and display content confirmation to be achieved at different times in the operational sequence.
3Ease of operation
If the touchable range is expanded to include both touch region and icon display region, then ease of operation improves, but the likelihood of erroneous touches increases
Solution Approach 1:
Different regions of the touch panel are assigned different touch acceptance properties. The touch region is configured to accept touches, while the icon display region is configured to reject touches when the icon is displayed. This local differentiation of quality allows the entire area to be touchable for ease of operation, while specific regions can prevent erroneous touches based on their local configuration.
Data Source
AI summary
An electronic apparatus includes a touch detection unit, a switching unit performing switching between a first state where a touch operation for a specific item is accepted and a second state where a touch operation for the specific item is not accepted, a display control unit displaying the specific item in both the first state and the second state, and a control unit performing a specific process in response to a touch operation for a predetermined region not corresponding to the specific item and performing the process of the specific item in response to the touch operation for the specific item in the first state, and performing the specific process in response to a touch operation for the predetermined region and not performing the process of the specific item but performing the specific process even when there is a touch operation for the specific item in the second state.