LED Display Data Transmission via Merged Receiver Architecture
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Solution Overview
Problem
Large LED display panels face challenges in synchronously transmitting data to LED drivers due to the need for numerous receiver cards and gigabit Ethernet ports, which lead to issues like physical size constraints, electromagnetic interference, and increased size and complexity.
Innovation Solution
A system comprising a transmitter, multiple modules of first and second receivers, and LED driver groups, where the second receivers determine designated field information to efficiently transmit configuration and image data packets to LED drivers, reducing the number of transformers and gigabit Ethernet ports required, and utilizing Low Voltage Differential Signaling (LVDS) format for communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a large number of receiver cards and gigabit Ethernet ports are used to transmit data to LED drivers, then data transmission capability is improved, but the physical size of the display panel increases and electromagnetic interference worsens
Solution Approach 1:
The patent merges multiple receiver cards into a single receiver card by integrating multiple receiving channels. Each channel can independently receive and process data packets for different LED driver groups, eliminating the need for multiple separate receiver cards and their associated gigabit Ethernet ports, thus reducing panel size while maintaining data transmission capability
Solution Approach 2:
The single receiver card is designed with multi-functionality to handle multiple receiving channels simultaneously. It can selectively route data packets to different LED driver groups based on channel identification, making one receiver card perform the function of multiple receiver cards would have performed
2Reliability
If a large number of transformers are used for high frequency signal coupling in gigabit Ethernet ports, then data transmission reliability is improved, but electromagnetic radiation increases
Solution Approach 1:
The patent extracts and eliminates the need for multiple transformers by reducing the number of gigabit Ethernet ports from multiple receiver cards to a single receiver card. This removal of unnecessary transformers directly reduces electromagnetic radiation while maintaining data transmission reliability through the alternative LVDS communication approach
3Speed
If multiple gigabit Ethernet ports are used for data transmission, then data transmission speed is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple gigabit Ethernet port functions into a single receiver card with multiple receiving channels. This merging reduces system complexity by eliminating redundant components while maintaining high data transmission speed through efficient channel multiplexing and LVDS signaling
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
This configuration minimizes the size of the LED display panel, reduces electromagnetic interference, and allows for a more compact structure by reducing the number of transformers and gigabit Ethernet ports, enabling efficient data transmission and synchronization across the LED display panel.
Implementation Method 1
utilizing Low Voltage Differential Signaling (LVDS) format for communication
Data Source
AI summary
A display device is provided. The display device includes a transmitter, a plurality of first receivers, a plurality of second receiver modules, and a plurality of LED driver groups. The transmitter transmits at least one of a configuration data packet and an image data packet. Each of the configuration and image data packets includes a set of field information. At least one first receiver is coupled to the transmitter. Each of the plurality of second receiver modules is coupled to at least one of first receivers. Each of the plurality of second receiver modules includes a plurality of second receivers. Each of the second receivers reads the set of field information so as to determine whether the set of field information is designated thereto. Each of the plurality of LED driver groups is coupled to the at least one of the second receivers. Each of the plurality of LED driver groups includes a plurality of LED drivers. The set of field information includes information of a designated second receiver in the plurality of the second receivers.