Touch Panel Vibration Control for Finger and Pen Input
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Solution Overview
Problem
Users experience oddness when operating touch panels with both fingers and touch pens due to inconsistent tactile sensations caused by different vibration propagation through these input means.
Innovation Solution
An electronic device with a vibration section and a detection system that varies vibration patterns based on whether a finger or a pen is detected, providing a greater vibration when a finger is used to match the intensity of tactile sensations felt with a pen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the same vibration is applied regardless of input means, then the device structure is simple, but the user experiences oddness due to different tactile sensations with finger and pen
Solution Approach 1:
The vibration control section dynamically adjusts vibration patterns based on the detected input means (finger or pen). The system transitions from a static vibration approach to a dynamic one where vibration intensity and pattern change according to the detected input device, resolving the contradiction between operational comfort and system simplicity
Solution Approach 2:
The patent changes vibration parameters (intensity, pattern) based on the detected input means. When a pen is detected, the vibration intensity is increased compared to finger input, compensating for the harder tip material. This parameter adjustment resolves the tactile sensation inconsistency while maintaining a relatively simple control architecture
2Ease of operation
If greater vibration is applied when finger is detected, then tactile sensation consistency is improved, but energy consumption increases
Solution Approach 1:
The system adjusts vibration parameters adaptively based on input detection. By applying greater vibration only when finger input is detected (rather than maximum vibration always), the system achieves tactile consistency while optimizing energy consumption. The vibration intensity is modulated according to the specific input means, avoiding unnecessary energy expenditure
Solution Approach 2:
The detection section provides feedback about the input means to the vibration control section, which then adjusts vibration patterns accordingly. This feedback loop enables the system to optimize energy usage by applying appropriate vibration levels only when necessary, rather than maintaining constant high-level vibration
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables smooth operation of touch panels with multiple input means by ensuring consistent tactile feedback, reducing the oddness felt by users when switching between finger and pen inputs.
Implementation Method 1
a vibration section for vibrating the panel
Data Source
AI summary
An electronic device 10 according to an embodiment includes: a display section 12 for displaying an operation area 40; a touch panel 11 disposed on a display surface side of the display section 12; a vibration section 13 for vibrating the touch panel 11; a vibration control section 33 for controlling a vibration pattern of the vibration section 13; and a detection section 20 for detecting whether an operation to the touch panel 11 has been made with a has been made with a finger of a user or a pen. The vibration control section 33 varies the vibration pattern of the vibration section 13 depending on whether a finger or a pen is detected by the detection section 20.