Tactile Touch Screen Contour Dynamics for ATM Security
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Solution Overview
Problem
Automated banking machines lack an effective user interface that provides tactile feedback, making it difficult for users to interact with the system intuitively and securely, particularly in transactions involving financial instruments.
Innovation Solution
A touch screen display with a contact surface that selectively outputs visual elements and provides tactile feedback through changes in contour, allowing users to feel movements and selections, enhancing the user experience and security during transactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional flat touch screen is used, then the device complexity is low and manufacturing is easy, but the user interface lacks tactile feedback and user interaction is not intuitive
Solution Approach 1:
The touch screen contact surface is transformed from a static flat surface to a dynamic surface that can change its contour and topography. actuators positioned behind the contact surface move to create tactile sensations, allowing the screen to dynamically alter its physical characteristics in response to user interaction and system state
Solution Approach 2:
A contact surface with variable contour acts as an intermediary between the user and the digital interface. This intermediate layer provides tactile feedback that bridges the gap between physical touch and digital response, enhancing user perception and interaction without requiring direct mechanical contact with internal components
2Ease of operation
If visual elements only are provided on the touch screen, then the device complexity is low, but the user experience lacks tactile engagement and security perception
Solution Approach 1:
Visual and tactile feedback mechanisms are merged into a single integrated touch screen system. The contact surface simultaneously displays visual elements and provides tactile sensations, combining two previously separate feedback channels into one unified interface that enhances user experience without requiring separate physical components
Solution Approach 2:
The physical parameters of the contact surface are dynamically changed to provide tactile feedback. The contour, height, and topography of the contact surface are modified in response to user interaction and system state, creating tangible sensations that correspond to digital events and enhance user perception
3Reliability
If no tactile feedback is provided, then the manufacturing cost is low, but transaction security and user confidence are reduced
Solution Approach 1:
The touch screen system provides its own tactile feedback without requiring external mechanical components or separate feedback mechanisms. The actuators integrated behind the contact surface enable the system to self-generate tactile sensations, eliminating the need for additional external components and simplifying the overall system architecture
Data Source
AI summary
A machine (10) is operative to carry out financial transfers responsive to data included on data bearing records including user cards. The machine includes a user interface (15) including a display (24). The user interface includes a card reader (16) which is operative to read data on user cards which identify at least one of user and a user's financial accounts. Records of the financial transfers are provided by a printer (30). A touch screen display module (608) is operative to securely receive manual inputs and/or card data. The touch screen display module includes a contact surface that can be electronically contoured to provide outputs that can be perceived through finger contact with the contact surface.