Touch Panel Region Control for Viewfinder Operability
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Solution Overview
Problem
Users performing touch operations while viewing a display unit through a viewfinder struggle to accurately recognize the touch position, leading to unintended movements to ineffective regions, which can result in unintended processing.
Innovation Solution
An electronic apparatus with a touch detection unit and control unit that divides the operation surface into regions, where a mark on the display unit is moved based on touch position components, preventing movement of the mark when the touch position is in certain regions, and using a touch buffer region to correct and prevent unintended touch position changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user performs touch operations while viewing the display unit through a viewfinder, then the user can operate the touch panel, but the user cannot easily recognize the touch position leading to unintended movements to ineffective regions
Solution Approach 1:
The system provides visual feedback by displaying a mark on the display unit that indicates the current touch position. This allows the user to see where their touch is registered while looking through the viewfinder, preventing unintended movements to ineffective regions. The mark moves in response to touch position changes, giving the user real-time feedback about their input accuracy.
2Reliability
If the touch position moves to an ineffective region, then the AF position is initialized as discussed in prior art, but unintended processing is performed
Solution Approach 1:
The system prevents the harmful effect of unintended processing by detecting when the touch position enters an ineffective region and taking preliminary action to stop further processing. The control unit detects the touch position and determines whether it is in an effective or ineffective region, then appropriately handles the touch input to prevent unintended AF position initialization or other unwanted operations.
3Productivity
If the mark is moved based on all touch position components, then the mark responds to all touch movements, but the mark may move to positions corresponding to ineffective regions
Solution Approach 1:
The system applies different response characteristics to different regions of the touch panel. When the touch position is in an effective region, the mark moves in response to touch position changes. When the touch position is in an ineffective region, the mark does not move or moves differently. This local differentiation ensures that touch operations in effective regions are responded to efficiently while preventing unintended movements in ineffective regions.
Data Source
AI summary
An electronic apparatus includes a touch detection unit that detects a touch operation on an operation surface including a first region, a third region, and a second region adjacent to one another, and a control unit that performs control, when a touch position is moved in the first region, to move a mark, which is displayed on a display unit different from the operation surface, based on a first component and a second component of movement of the touch position, not move the mark displayed on the display unit even when the touch position is moved in the second region, and not move the mark displayed on the display unit based on at least one of the first component and the second component of movement of the touch position when the touch position is moved in the third region.