RFID Payment Terminal With Display-Embedded Antenna
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Solution Overview
Problem
Conventional RFID payment terminals with large displays face challenges in generating sufficient magnetic field strength for communication with RFID tags due to the increased size of customer-facing displays, making existing antenna designs unsuitable for larger displays.
Innovation Solution
An RFID payment terminal with a display-embedded antenna, where the antenna is integrated into the display itself, allowing for effective communication with RFID devices through a magnetic field, and includes a semiconductor-based RFID transceiver and CPU for processing transactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display size is increased to show more payment information, then the information display capability is improved, but the magnetic field strength generated by the antenna decreases
Solution Approach 1:
The patent transitions from a conventional perimeter-wrapped antenna configuration to an embedded antenna configuration within the display structure. This dimensional repositioning allows the antenna to be integrated into the display layers without occupying peripheral space, enabling large display areas while maintaining adequate magnetic field generation for RFID communication
Solution Approach 2:
The antenna is nested within the display structure itself, embedded in the display layers rather than wrapping around the exterior. This nesting approach allows the antenna to coexist with the large display area, as it occupies space within the display's internal structure rather than adding to its external dimensions
2Device complexity
If the antenna is wrapped around the display perimeter, then the antenna structure is simple, but it cannot generate sufficient magnetic field strength for displays 5 inches or larger
Solution Approach 1:
The antenna configuration moves from a two-dimensional perimeter wrap to a three-dimensional embedded structure within the display layers. This allows the antenna to maintain a relatively simple construction while achieving better magnetic field distribution and strength across the larger display area
3Ease of manufacture
If conventional antenna designs are used with large displays, then manufacturing is straightforward, but communication with RFID tags fails due to insufficient magnetic field strength
Solution Approach 1:
The antenna and display are merged into a single integrated structure, where the antenna is embedded within the display layers during manufacturing. This combination ensures that the antenna is properly positioned and secured while maintaining ease of manufacture through integration, and reliably generates sufficient magnetic field strength for RFID tag communication
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 successful payment transactions with larger displays by ensuring sufficient magnetic field strength and integrating necessary components for transaction processing within the display, enhancing user experience and operational efficiency.
Implementation Method 1
The reader inductively couples to an antenna in the RFID payment tag to obtain transaction information
Implementation Method 2
An RFID antenna is embedded in a portion of the display used for displaying the payment information to a user and for communicating, via a magnetic field, with an RFID device
Data Source
AI summary
The subject matter described herein includes an RFID payment terminal with a display-embedded antenna. According to one aspect, an RFID payment terminal with a display-embedded antenna includes a display for graphically displaying payment information to a user. An RFID antenna is embedded in a portion of the display used for displaying the payment information to a user and for communicating with an RFID device of the user to receive transaction information form the RFID device. An RFID payment module is coupled to the antenna for receiving the transaction information and for effecting the payment transaction.