Vehicle Touch Panel Finger Rest Area for Vibration Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image display devices with touch panels, such as vehicle-mounted navigation systems, suffer from erroneous operations due to vehicle vibrations, which cause unintended finger or hand contacts on the touch panel.
Innovation Solution
The implementation of a finger rest area on the touch panel, where the operator stabilizes their hand, allowing subsequent contacts to be accurately registered by the control unit, reducing erroneous inputs and enhancing intended operation precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a touch panel is provided on the front surface of the display unit, then input operation by contact is enabled, but erroneous operation occurs due to unintended contact from vibration
Solution Approach 1:
The touch panel surface is segmented into a finger rest area and an operation area. The finger rest area is designated for stabilizing the hand during operation, while the operation area responds to touch inputs. This segmentation prevents unintended contacts on the operation area by providing a dedicated stabilization zone, thereby maintaining input accuracy while enabling ease of operation.
Solution Approach 2:
The finger rest area acts as an intermediary element between the operator's hand and the operation area. By providing this intermediate contact zone, the system allows the operator to stabilize their hand without directly contacting the operation area, thus preventing erroneous inputs while facilitating comfortable and accurate operation.
2Measurement precision
If the operator stabilizes hand on the touch panel, then input precision is improved, but unintended contact areas may cause erroneous operation
Solution Approach 1:
Different areas of the touch panel are assigned different functions: the finger rest area is optimized for hand stabilization without triggering input operations, while the operation area is optimized for responsive input detection. This local differentiation allows the operator to achieve contact position accuracy through proper hand stabilization while preventing erroneous operations from unintended contacts on the operation area.
3Reliability
If the finger rest area is set on the touch panel, then erroneous operation is reduced, but the touch panel area for actual operation is reduced
Solution Approach 1:
The finger rest area is positioned in advance at optimal locations where the operator's hand naturally stabilizes during operation. By pre-designating these areas, the system enables accurate operation without requiring the operator to search for stable contact points, thereby minimizing the impact on the available operation area while maximizing input accuracy.
Data Source
AI summary
A vehicle-mounted device includes a storage device, an external input unit, a speaker, an image display unit, a touch panel, a control unit, a DVD/CD drive, a GPS, a vehicle speed sensor, and a gyroscope. The touch panel includes a finger rest area to reduce erroneous operation by a finger or hand of an operator due to vibration of the vehicle or other causes, and perform input intended by the operator even under a vehicle-mounted environment. The operator contacts the finger on the rest area thereby stabilizing his/her inputting hand while contacting the touch panel. As a result, erroneous input can be reduced, and input desired by the operator can be easily performed.