Haptic Display Braille Feedback for Touch Interface Efficiency
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Solution Overview
Problem
Existing methods for manipulating user interfaces on electronic devices with touch-sensitive surfaces are cumbersome and inefficient, particularly for users with impaired vision, and do not effectively conserve power in battery-operated devices.
Innovation Solution
The implementation of haptic displays that provide Braille characters and haptic feedback for user interface elements, allowing users to interact with documents and virtual instruments through tactile feedback, reducing cognitive burden and enhancing efficiency while conserving power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional touch-sensitive surface methods are used for manipulating user interfaces, then the device structure remains simple, but the operation efficiency is low and power consumption is high
Solution Approach 1:
The patent combines visual display and haptic feedback into a single integrated system. The haptic display device merges the functions of visual information presentation and tactile feedback delivery, allowing users to interact with user interface elements through both visual and tactile modalities simultaneously, thereby improving operation efficiency without requiring separate devices
Solution Approach 2:
The haptic display device performs multiple functions: it displays visual information, provides tactile feedback, and enables both visual and tactile interaction with user interface elements. This multi-functionality allows the device to improve productivity across different user needs and scenarios while consolidating capabilities into a single system
2Ease of operation
If conventional touch-sensitive surface methods are used for manipulating user interfaces, then the interface design remains simple, but the ease of operation is poor for users with impaired vision
Solution Approach 1:
The patent segments information presentation into distinct visual and tactile channels. Visual information is displayed through the display screen while corresponding tactile feedback is provided through haptic elements at specific locations, allowing users with impaired vision to access information through the tactile channel without overwhelming the interface with excessive visual complexity
Solution Approach 2:
The haptic feedback acts as an intermediary between the visual display and the user's tactile perception. It translates visual interface element locations and states into corresponding tactile sensations, enabling users with impaired vision to navigate and interact with the interface through tactile cues without directly exposing them to complex visual interface structures
3Ease of operation
If haptic feedback is added to provide tactile information for user interface elements, then ease of operation improves, but device complexity increases
Solution Approach 1:
The patent merges the haptic feedback functionality with the existing display structure. The haptic display device integrates tactile feedback elements into the display assembly, allowing visual and tactile functions to be delivered through a unified device architecture rather than requiring separate independent systems
Solution Approach 2:
The haptic display device is designed to perform multiple functions within a single system: visual display, tactile feedback delivery, and dual-mode interaction. This multi-functionality consolidates what would otherwise require separate components into one integrated device, managing complexity while expanding capability
Data Source
AI summary
An electronic device in communication with a haptic feedback device that includes a touch-sensitive surface sends instructions to the haptic display to display a document with multiple characters. A respective character is displayed at a respective character size. While the haptic display is displaying the document, the device receives an input that corresponds to a finger contact at a first location on the haptic display. In response to receiving the input, the device associates a first cursor position with the first location, determines a first character in the plurality of characters adjacent to the first cursor position, and sends instructions to the haptic display to output a Braille character, at the first location, that corresponds to the first character. A respective Braille character is output on the haptic display at a respective Braille character size that is larger than the corresponding displayed character size.