Display Driving IC Integrating RFID Reader Functions
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Solution Overview
Problem
Existing display driving integrated circuits do not efficiently integrate RFID reader functions, leading to increased complexity and resource duplication in electronic display technologies.
Innovation Solution
A multi-functional display driving integrated circuit that operates as both an RFID reader and display driver, sharing components like timers, CRC calculators, and data interfaces to perform verification and data transfer tasks, reducing system complexity and resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If display driving integrated circuit and RFID reader are implemented as separate devices, then each device can be optimized for its specific function, but system complexity and component quantity increase
Solution Approach 1:
The patent merges the display driving integrated circuit and RFID reader into a single integrated device. The display driving integrated circuit includes an RFID reader module that can supply power to RFID tags, verify tags through communication with the processor, and transfer verification data. This integration eliminates the need for separate RFID reader devices while maintaining both display driving and RFID reading functions within one unified circuit architecture.
Solution Approach 2:
The display driving integrated circuit is designed with multi-functionality, serving both as a display driver and an RFID reader. It shares common resources such as the processor, power voltage generating circuit, timer, CRC calculator, clock signal generator, and data interface between its display driving function and RFID reading function. This universal design allows a single device to perform multiple functions that would traditionally require separate devices.
2Adaptability or versatility
If separate RFID reader and display driver components are used, then functional independence is maintained, but the number of components and interfaces increases
Solution Approach 1:
The patent combines multiple functional components into a single integrated circuit. The display driving integrated circuit incorporates the RFID reader functionality, including the power voltage generating circuit, timer, CRC calculator, clock signal generator, and data interface, all within one unified device. This merging reduces the total number of components and interfaces needed in the system while maintaining functional independence through modular internal architecture.
3Ease of operation
If multiple separate devices are used for display driving and RFID reading, then each device can operate independently, but resource duplication occurs
Solution Approach 1:
The display driving integrated circuit is designed as a universal device that performs both display driving and RFID reading functions. It shares common resources including the processor, power voltage generating circuit, timer, CRC calculator, clock signal generator, and data interface between its two main functions. This universality eliminates resource duplication and reduces energy consumption compared to having separate dedicated devices for each function.
Data Source
AI summary
A display driving integrated circuit operates as both a radio-frequency identification (RFID) reader and a display driver. The display driving integrated circuit operates as the RFID reader by supplying power to an RFID tag, verifying the RFID tag according to communication between the RFID tag and the processor to produce verification data, transferring the verification data from the processor to the RFID tag, and transmitting some of the verification data to the display unit. It operates as a display driver by processing data received from the processor and transferring the processed data to the display unit. The display driving integrated circuit implements functions for the RFID reader and the display unit driver using one or more shared elements selected from a timer, a clock signal generator, a cyclic redundancy check calculator, and a data interface.