Vibrating Electronic Paper Display for Multi-Sensory Emergency Guidance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing escape route guidance systems are inadequate for individuals with visual impairments and those in smoke-filled environments, as they rely solely on visual cues and do not effectively support people with sensory limitations during emergencies.
Innovation Solution
A display device that integrates an optical display unit capable of mechanical vibrations to produce acoustic signals, eliminating the need for a separate loudspeaker and providing both visual and acoustic guidance, using electronic paper for dynamic displays that remain visible even in power failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If visual escape route signs are used, then escape route guidance is provided, but people with visual impairments and those in smoke-filled environments cannot effectively perceive the guidance
Solution Approach 1:
The patent combines visual display unit and acoustic signal output unit into a single integrated display device. The display unit shows pictograms while the acoustic unit emits corresponding sounds, creating a multi-sensory guidance system that serves both visually impaired persons and those in smoke-filled environments through a unified device structure.
Solution Approach 2:
The display device is designed to perform multiple functions simultaneously: visual information display through the display unit and acoustic signal emission through the acoustic unit. This multi-functional design ensures that the same device can guide both visually impaired persons and those in smoke-filled environments, eliminating the need for separate guidance systems.
2Adaptability or versatility
If separate loudspeaker system is installed for acoustic guidance, then acoustic signals can be emitted, but system complexity and costs increase
Solution Approach 1:
The acoustic signal output unit is integrated directly into the display device structure, sharing the same housing and power supply system. This merging eliminates the need for a separate loudspeaker installation and reduces overall system complexity while maintaining acoustic guidance functionality.
Solution Approach 2:
The display device serves dual purposes: visual information display and acoustic signal emission. By making the display device universal, the patent eliminates redundant components and reduces system complexity compared to having separate visual and acoustic guidance systems.
3Adaptability or versatility
If electronic paper display is used, then dynamic escape route information can be displayed, but the display unit becomes susceptible to mechanical vibrations
Solution Approach 1:
The display device is divided into functionally independent modules: the display unit and the acoustic signal output unit. This segmentation allows the acoustic unit to be positioned away from the electronic paper display, minimizing vibration impact on the display while maintaining close integration for coordinated operation.
Solution Approach 2:
The acoustic signal output unit is positioned at a specific location within the display device housing that minimizes its mechanical impact on the electronic paper display unit. This local quality consideration ensures that vibrations from the acoustic unit do not interfere with the display stability while maintaining the integrated design.
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
The solution enables faster evacuation times for individuals with visual impairments and reduces system costs by integrating optical and acoustic guidance into a single device, ensuring effective escape route direction in adverse conditions.
Implementation Method 1
The optical display unit can be excited to mechanical vibrations relative to the housing frame... the vibration-generating means is designed to excite the optical display unit, based on a control signal, to mechanical vibrations for the reproduction of an acoustic signal
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Display device comprising an optical display unit (4) designed to display at least one pictogram, and a housing frame (2), wherein the optical display unit (4) is elastically mounted on the housing frame (2) and is designed to be excitable to mechanical vibrations relative to the housing frame (2), and the display device has vibration-generating means which are arranged to excite the optical display unit (4) to mechanical vibrations for the reproduction of an acoustic signal in a frequency range perceptible to humans on the basis of a control signal (15).