Haptic Key Structure With Stroke-Depth Tactile Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electronic devices lack effective mechanisms for providing haptic feedback that accurately convey the stroke depth and pressure sensitivity of keys, leading to a suboptimal user experience.
Innovation Solution
Incorporation of a haptic actuator and a haptic plate in the electronic device that generates vibrations at different stroke depths, providing distinct tactile feedback for each key stroke.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a haptic actuator and haptic plate are added to provide tactile feedback at different stroke depths, then user interaction quality is improved, but device complexity increases
Solution Approach 1:
The haptic plate is integrated within the key structure, with the actuator positioned beneath the plate. The haptic plate serves dual purposes as both a structural element and a vibration transmission medium, nesting the haptic feedback mechanism within the existing key layout without requiring separate external components.
Solution Approach 2:
The haptic plate serves multiple functions: it acts as a vibration transmission surface, a structural support element, and a mechanism for providing differentiated tactile feedback at various stroke depths. This multi-functionality reduces the need for additional specialized components.
2Measurement precision
If haptic feedback mechanism is implemented to convey stroke depth information, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The system provides real-time haptic feedback to the user based on the detected stroke depth. As the key is pressed to different depths, the actuator adjusts the vibration characteristics of the haptic plate, creating a feedback loop that confirms the stroke depth measurement to the user through tactile sensation.
Solution Approach 2:
The patent replaces complex mechanical measurement systems with a more integrated approach where the haptic actuator and plate work together to both measure and communicate stroke depth. The vibration patterns serve as both the measurement indicator and the user feedback mechanism, eliminating the need for separate display or notification systems.
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
Enhances user interaction by clearly conveying the depth of key strokes and pressure sensitivity, improving the overall tactile experience.
Implementation Method 1
a first haptic actuator configured to generate vibration when at least one of the plurality of keys is stroked, and a haptic plate configured to be vibrated by the first haptic actuator and configured to vibrate the key cap
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
An electronic device according to embodiments may comprise: a housing; a plurality of keys positioned in the housing and each including a key cap configured to move along a stroke direction during a stroke; a first haptic actuator configured to generate vibration during a stroke of at least one key among the plurality of keys; and a haptic plate configured to vibrate by the first haptic actuator and configured to vibrate a key cap of at least one stroked key among the plurality of keys.