Touch Panel Object Display with Load Detection
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Solution Overview
Problem
Conventional touch panels that detect only location, rather than pressing force, lead to unstable and error-prone operations when attempting to open folders or execute files during drag operations, as users must maintain a precise pressing force to avoid unintended actions, which can result in time-consuming corrections.
Innovation Solution
An object display device with a touch panel that includes both location and load detection units, allowing the control unit to differentiate between a first and second pressing location, enabling objects to be moved or executed without the need for a drag operation by detecting a load unsatisfying a threshold, thus reducing errors and enhancing operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a touch panel detects only location without pressing force, then the device structure remains simple, but operation stability deteriorates during drag operations
Solution Approach 1:
The patent combines location detection and pressing force detection functions into a single touch panel system. The touch panel includes both a location detection unit and a pressing force detection unit, allowing simultaneous detection of touch position and pressure magnitude. This merged approach resolves the contradiction by maintaining operational reliability during drag operations while avoiding the need for separate detection systems.
Solution Approach 2:
The touch panel is designed with multi-functional detection capabilities, serving both location identification and pressing force measurement functions. This universal detection system enables the panel to distinguish between different operation types (selection vs. drag) based on pressure thresholds, improving operational stability without significantly increasing device complexity.
2Ease of operation
If drag operation is used to move objects on touch panel, then the operation method remains simple, but error rate increases due to unstable pressing force detection
Solution Approach 1:
The patent introduces pressing force as an additional parameter for operation recognition, beyond just location. By detecting the magnitude of pressing force and comparing it against threshold values, the system can reliably distinguish between selection operations (lower pressure) and drag operations (higher pressure). This parameter change eliminates errors associated with unstable pressing force detection during drag operations.
Solution Approach 2:
The patent replaces the traditional mechanical drag operation (requiring continuous finger movement while maintaining pressure) with a more reliable detection-based system. The control unit automatically determines operation type based on detected pressing force parameters, substituting the need for precise manual pressure control with automated threshold-based recognition.
3Speed
If pressing force threshold is set low for file execution, then execution speed improves, but unintended execution during drag increases
Solution Approach 1:
The patent implements dynamic threshold adjustment based on operation context. The control unit monitors pressing force over time and adjusts the threshold for file execution based on whether the operation appears to be a drag or a selection. During drag operations, the threshold is effectively raised to prevent unintended execution, while during stationary selections, the threshold remains low for quick execution.
Solution Approach 2:
The system incorporates feedback mechanisms where the control unit continuously monitors pressing force parameters and adjusts operation recognition accordingly. When a drag operation is detected (through pressure patterns or movement), the system provides feedback by raising the execution threshold, preventing unintended file execution while maintaining fast execution for proper selection operations.
Data Source
AI summary
An object display device is disclosed. An object display device includes a display unit, a detection unit and a control unit. The display unit is configured to display an object. The detection unit is configured to detect a location and a load of a pressing to the display unit. The control unit can control a movement of the object based on conditions of first and second pressings.