Head-Mounted Display Directional Haptics Without Visual Distraction
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Solution Overview
Problem
Existing head-mounted displays lack effective means to provide directional haptic outputs independently of graphical and aural content, limiting their ability to instruct users or draw attention without visual or auditory distractions.
Innovation Solution
A head-mounted display system that includes a display unit, haptic output devices, and a controller. The controller processes directional inputs and determines directional haptic outputs, which are then controlled to provide haptic feedback to the user, such as navigation instructions, environmental awareness, and virtual output guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If head-mounted displays use visual or auditory cues to instruct users, then information delivery is effective, but user distraction increases in certain environments
Solution Approach 1:
The patent introduces haptic output devices as an intermediary channel for information delivery. Instead of relying solely on visual or auditory cues that can be distracting, the system uses tactile feedback through haptic actuators to convey directional information and instructions, thereby reducing distraction while maintaining effectiveness.
Solution Approach 2:
The patent segments the output modalities by introducing a separate haptic feedback system independent of the visual display and audio output. This segmentation allows directional haptic feedback to be provided without interfering with or being interfered by visual and auditory content, reducing cross-modal distraction.
2Adaptability or versatility
If head-mounted displays provide comprehensive graphical and aural content, then user engagement is enhanced, but device complexity increases
Solution Approach 1:
The patent implements a controller that manages multiple output modalities (visual, auditory, and haptic) through a unified system. The haptic output devices are integrated into the existing head-mounted display architecture, allowing the same device to provide comprehensive engagement across multiple senses without proportionally increasing complexity.
Data Source
AI summary
A head-mounted display includes a display, haptic output devices, and a controller. The display unit is configured to be worn on a head of a user and includes a display for providing graphical output to the user. The haptic output devices are coupled to the display unit. The controller that processes directional inputs, determines directional haptic output according to the directional inputs, and controls the haptic output devices to provide the directional haptic output.