Light Guide Body Haptic Feedback Control
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Solution Overview
Problem
Current terminal devices, such as smartphones, can only provide a single vibrator for tactile stimulation, which limits the ability to deliver a fine tactile experience matching the video content.
Innovation Solution
An information processing device with a display control unit that projects video onto a surface formed by light guide bodies and a movement control unit that moves the distal ends of these light guide bodies to change the surface shape, allowing for precise tactile and haptic feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only one vibrator is provided in the terminal device, then the device structure is simple, but a fine tactile stimulus according to the video cannot be given to the user
Solution Approach 1:
The patent divides the single vibrator into multiple independent actuators (first and second actuators positioned at different locations). Each actuator can be controlled independently to provide tactile stimuli corresponding to different regions of the video, enabling fine-grained tactile feedback that matches the video content while maintaining manageable device complexity
Solution Approach 2:
The patent applies different tactile stimulus characteristics to different locations on the device surface. By positioning actuators at specific locations and controlling them independently, the system provides location-specific tactile feedback that corresponds to the local content being displayed, enhancing the adaptability and versatility of the tactile stimulus
2Adaptability or versatility
If multiple actuators are used to provide fine tactile stimulus, then the tactile stimulus quality is improved, but the device complexity increases
Solution Approach 1:
The patent designs the actuator system so that multiple actuators serve universal functions - each actuator can provide both tactile feedback and haptic feedback depending on the video content requirements. This multi-functionality reduces the need for specialized components for each type of feedback, thereby limiting the increase in device complexity while maintaining high tactile stimulus quality
Solution Approach 2:
The patent implements dynamic control of the actuators based on the video content being displayed. The control system adjusts the operation of each actuator in real-time according to the temporal and spatial characteristics of the video, enabling adaptive tactile and haptic feedback that enhances versatility without requiring a permanently complex fixed structure
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 a more nuanced and detailed tactile experience by dynamically changing the surface shape and providing haptic feedback in synchronization with video content, enhancing user interaction.
Implementation Method 1
a plurality of light guide bodies that propagates light input from the proximal ends to distal ends
Data Source
AI summary
An information processing device includes: a display control unit configured to perform display control of a display unit that outputs a video to be projected on a projection surface formed by proximal ends of a plurality of light guide bodies that propagates light input from the proximal ends to distal ends; and a movement control unit configured to perform control of a movement drive unit that moves the distal ends of the plurality of light guide bodies forming a drawing surface.