Electrostatic Haptic Panel for Smart Device Accessibility
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Solution Overview
Problem
Existing smart devices are inconvenient for blind users as they primarily rely on touch screens for input and output, making it difficult for them to access visual information, and existing haptic solutions are bulky, power-hungry, and inconvenient to carry.
Innovation Solution
A haptic pattern providing apparatus that converts visual information on a smart device into haptic information using an electro-sensitive panel attached to the touch screen, allowing users to receive visual information as tactile patterns by scanning the panel with their finger, integrated into a compact design that can be easily carried with the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If ultrasonic motors are used to raise pins for haptic feedback, then haptic information can be provided to blind users, but the device size and weight increase significantly
Solution Approach 1:
The patent replaces the mechanical ultrasonic motor system with an electrostatic-based haptic feedback system. The electrostatic haptic feedback apparatus uses electrostatic forces generated by a display panel to provide tactile feedback directly to the user's finger, eliminating the need for heavy mechanical components like ultrasonic motors and pin-raising mechanisms.
Solution Approach 2:
The patent makes the display panel serve dual functions: visual display and haptic feedback generation. The same electrostatic display panel that shows visual information also generates electrostatic forces to provide tactile feedback, eliminating the need for separate haptic feedback mechanisms and reducing overall device complexity and weight.
2Ease of operation
If ultrasonic motors are used to generate haptic feedback, then blind users can receive visual information as haptic patterns, but electricity consumption becomes excessively high
Solution Approach 1:
The patent replaces the energy-intensive ultrasonic motor system with an electrostatic-based system that uses the display panel's inherent electrostatic fields to generate haptic feedback, significantly reducing power consumption compared to mechanical vibration motors.
Solution Approach 2:
The patent makes the display panel serve dual functions: visual display and haptic feedback generation. The same electrostatic display panel that shows visual information also generates electrostatic forces to provide tactile feedback, eliminating the need for separate haptic feedback mechanisms and reducing overall device complexity and weight.
3Ease of operation
If a separate haptic electronic board is used, then haptic feedback can be provided, but portability is reduced due to the need to carry the device separately
Solution Approach 1:
The patent merges the haptic feedback functionality directly into the display device itself. The electrostatic haptic feedback apparatus is integrated with the display panel, combining what were previously separate functions (visual display and haptic feedback) into a single unified device, thereby improving portability and ease of use.
4Loss of information
If multiple ultrasonic motors are arranged in arrays to provide graphic haptic feedback, then visual information can be transferred as haptic information, but device complexity and size increase
Solution Approach 1:
The patent replaces the complex array of ultrasonic motors with a simplified electrostatic system using the display panel. The electrostatic haptic feedback apparatus uses electrostatic forces generated by the display panel to provide tactile feedback directly to the user's finger, eliminating the need for heavy mechanical components like ultrasonic motors and pin-raising mechanisms.
Solution Approach 2:
The patent makes the display panel serve dual functions: visual display and haptic feedback generation. The same electrostatic display panel that shows visual information also generates electrostatic forces to provide tactile feedback, eliminating the need for separate haptic feedback mechanisms and reducing overall device complexity and weight.
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 blind users to access various visual information on smart devices as haptic patterns, improving usability and convenience without the size and power consumption issues of existing solutions.
Implementation Method 1
an electro-sensitive panel which is installed over the storage unit and closely attached to a touch screen of the smart device
Data Source
AI summary
A smart device is stored in a storage unit of a haptic pattern providing apparatus, and the haptic pattern providing apparatus provides a user with an electrical stimulus pattern matched with visual information displayed on the stored smart device through an electro-sensitive panel which is installed over the storage unit and closely attached to a touch screen of the smart device. The haptic pattern providing apparatus senses a touch position of the user on the touch screen, and provides the user with a haptic pattern matched with the visual information displayed on the corresponding touch position through the electro-sensitive panel, such that the user can receive various pieces of visual information displayed on the smart device as haptic information implemented as haptic patterns through a process in which the user scans the electro-sensitive panel closely attached to the touch screen of the smart device with his or her finger.