Passive Reference Haptics for Gaze-Free Wearable Information
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Solution Overview
Problem
Existing electronic devices require users to divert their attention to view screens for information, which can be inconvenient and distracting, especially in social settings.
Innovation Solution
An electronic device incorporating active and reference haptics that allow users to perceive information through touch, using a changing haptic output on the interface surface and a time-independent reference haptic, enabling information interpretation without looking at the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If users view the device screen to obtain information, then information delivery is achieved, but user attention is diverted and distractions increase
Solution Approach 1:
The patent replaces the visual display system with a haptic feedback system. Instead of requiring users to look at the screen to receive information, the system uses tactile sensations through the display surface to convey information such as time, notifications, and priority levels. This substitution of visual information delivery with mechanical/tactile feedback resolves the contradiction by enabling information delivery without requiring visual attention.
Solution Approach 2:
The patent introduces haptic feedback as an intermediary between the device and the user. The haptic system acts as a mediator that translates digital information into tactile sensations that users can perceive through touch. This intermediary enables information delivery while keeping the user's visual attention on external tasks, thus improving user convenience while maintaining effective communication of information.
2Loss of information
If visual display is used for information delivery, then information is conveyed, but user distraction and social inappropriateness increase
Solution Approach 1:
The patent replaces the optical display system with a haptic feedback system that delivers information through tactile sensations. This substitution eliminates the need for users to divert their visual attention to the screen, thereby reducing distractions and making the device more socially appropriate for use in situations where visual attention should remain focused elsewhere.
Solution Approach 2:
The patent extracts the information delivery function from the visual display domain and relocates it to the tactile feedback domain. By separating information communication from visual output, the system eliminates the harmful effect of user distraction while preserving the core function of information delivery.
3Ease of operation
If haptic feedback is added to enable touch-based information perception, then user convenience improves, but device complexity increases
Solution Approach 1:
The patent makes the display surface multi-functional by enabling it to provide both visual display and haptic feedback capabilities. Instead of adding a completely separate haptic mechanism, the system integrates haptic functionality into the existing display structure, allowing the same component to serve multiple purposes and thereby reducing the overall device complexity.
Solution Approach 2:
The patent merges the haptic feedback system with the display structure. By combining these two functions into a single integrated system rather than treating them as separate components, the patent reduces device complexity while still achieving tactile information delivery. The haptic feedback is generated through the display surface itself, eliminating the need for additional dedicated haptic hardware.
Data Source
AI summary
The combination of active and reference haptics on an electronic device, such as a wearable display device, can convey information to a user without requiring the user to look at the device. An electronic device may include a housing, a display disposed in the housing and including an interface surface arranged for user contact and a reference haptic. The interface surface includes an active haptic output that provides a time-dependent haptic output and a reference haptic disposed on the housing or the interface surface to provide a time-independent haptic output related to the time-dependent haptic output.