Wireless Content Delivery for Tiled LED Displays
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Solution Overview
Problem
Large LED displays in cinema environments are prone to failures due to circuit board defects, which can result in canceled shows, lost revenues, and frustrated customers, primarily caused by cable and connector failures, electromagnetic interference, and complex installation processes, with existing wireless solutions requiring expensive components and compromising data security.
Innovation Solution
A wireless content delivery system using infrared emitters and detectors to transmit data directly to LED tiles, eliminating the need for cables and demultiplexing hardware, and incorporating redundant circuitry and secure data transmission to enhance reliability and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cables and connectors are used to deliver content to LED display panels, then data transmission can be established, but cable failures and connector failures occur leading to system reliability issues
Solution Approach 1:
The patent extracts and removes cables and connectors from the content delivery system by implementing wireless communication between display panels. Each panel is equipped with wireless transceivers that enable direct peer-to-peer data transmission, eliminating the physical cable infrastructure that causes failures and complexity.
Solution Approach 2:
The patent replaces the mechanical cable and connector system with an electromagnetic wireless communication system. Data that previously traveled through physical cables is now transmitted via radio frequency signals between panel-mounted transceivers, substituting mechanical connections with electromagnetic field-based communication.
2Productivity
If demultiplexing processors are included in each panel, then content can be processed locally, but these components consume significant power and generate electromagnetic interference
Solution Approach 1:
The patent extracts the demultiplexing function from individual panel processors and relocates it to a centralized server or cloud-based processing system. Panels receive already-processed content instructions via wireless communication, eliminating local demultiplexing hardware and its associated electromagnetic interference and power consumption.
Solution Approach 2:
The patent merges the demultiplexing processing capability into a centralized server system that handles content processing for multiple panels. This consolidation eliminates redundant processing hardware at each panel while maintaining content delivery capability, reducing overall electromagnetic interference and power consumption.
3Reliability
If wireless RF data transmission is used to replace cables, then cable failures are eliminated, but expensive components and regulatory approvals are required
Solution Approach 1:
The patent implements local wireless communication between display panels using low-power Bluetooth Low Energy (BLE) or similar short-range wireless technology. Each panel acts as both a transmitter and receiver, creating a mesh network that provides reliable wireless connectivity without requiring expensive infrastructure or regulatory approvals associated with traditional RF systems.
Solution Approach 2:
The patent employs inexpensive, commercially available wireless transceiver modules (such as Bluetooth Low Energy modules) that can be easily integrated into display panels. These low-cost components provide sufficient reliability for the application without requiring expensive specialized wireless hardware or complex regulatory certification processes.
4Reliability
If link decryption blocks are included in each panel for data protection, then cinema-level security is achieved, but this introduces more mission critical components that are difficult to access and maintain
Solution Approach 1:
The patent merges all decryption and security processing functions into the centralized server system. Content is encrypted during transmission and decrypted only at the server before being sent to panels via wireless communication. This eliminates the need for decryption blocks in each panel, centralizing security functions where they are easier to maintain and update.
Solution Approach 2:
The patent extracts decryption functionality from individual panel components and relocates it to the centralized server system. By removing decryption blocks from panels, the system eliminates difficult-to-access mission-critical components while maintaining cinema-level security through centralized encryption/decryption processing.
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 solution reduces the complexity and cost of LED display systems, increases reliability by eliminating cable failures and electromagnetic interference, and provides secure, high-bandwidth data transmission, enabling efficient and reliable operation with reduced maintenance costs.
Implementation Method 1
A wireless content delivery system using infrared emitters and detectors to transmit data directly to LED tiles
Implementation Method 2
converting the wireless signals to electronic signals for controlling light output by the LED display
Data Source
AI summary
An active display (102) can be used in a theatre environment (100) in which content to be displayed by the active display (102) can be delivered wirelessly using emitters (118). The active display (102) can include tiles (104a-104d) with detectors (106a-106d) that can detect the wireless signals. The active display (102) can include circuitry that can interpret instructions from the wireless signals for controlling the output (108a-108d) of pixels on the tiles.