Touch Panel Edge Flick Detection via Area Segmentation
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Solution Overview
Problem
Existing contact operation determination systems in electronic devices with touch panels often incorrectly differentiate between tap and flick operations when the contact starting point is at the edge of the detection area, leading to erroneous determinations.
Innovation Solution
A contact operation determination apparatus that sets a first area within the touch panel's detection area and a surrounding second area with a predetermined width to accurately distinguish between tap and flick operations by determining the contact end point's location within these areas relative to the contact starting point.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a contact operation is detected using a predetermined distance from the contact starting point to determine between tap and flick operations, then the operation determination is simple and fast, but erroneous determination occurs when the contact starting point is at the end portion of the contact detection area
Solution Approach 1:
The contact detection area is divided into multiple regions: a first region (inner area), a second region (surrounding the first area with width ≥ predetermined distance), and a third region (outside the second area). This segmentation allows different determination rules to apply to different regions, resolving the contradiction by enabling accurate flick operation detection at edges while maintaining simple determination in the center area.
2Measurement precision
If the contact detection area is expanded to include areas beyond the original boundary to prevent erroneous determination, then the detection accuracy improves, but the device complexity increases
Solution Approach 1:
The detection area is segmented into three distinct regions with clear boundary definitions. The first region contains the original detection area, the second region surrounds it with sufficient width, and the third region is outside the second area. This structured segmentation provides a systematic framework for accurate operation detection without excessive complexity.
Solution Approach 2:
The multiple regions are pre-defined and established before contact operations occur. When a contact operation is detected, the system immediately determines which region applies based on the pre-established boundaries, enabling accurate and rapid determination without complex real-time calculations.
Data Source
AI summary
[Object] To provide a contact operation determination apparatus, a contact operation determination method, and a program that are capable of avoiding erroneous determination in an end portion of a contact detection area.[Solution] A contact operation determination apparatus includes a display panel 101b, a touch panel 101a configured to detect a contact operation for a contact detection area 110 provided on the display panel surface 101b, an area setting unit configured to set, in the contact detection area, a first area 111, and a second area 112 that surrounds the first area second area 112 so as to have a width greater than or equal to a predetermined distance D from a contact starting point SP to contact end points EP and EP′, the first area second area 112 being used to discriminate between a tap operation and a flick operation, and an operation determination unit configured to determine, when a contact end point is detected in the first or second area after a contact starting point has been detected in the second area, that a flick operation has been performed.