Active Receiver Card Video Processing for Modular LED Tiles

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Solution Overview

Problem

Traditional video processing systems for LED displays face challenges with high cost, latency, and complexity due to the need for expensive high-bandwidth transmissions and centralized processing, which often result in pixel and frame artifacts and difficulty in configuring individual tiles.

Innovation Solution

A video processing system using an active receiver card with a processor to receive a broadcast serialized video data stream, allowing each tile to read only its relevant data and distribute processing locally, reducing latency and complexity by employing an asymmetrical communication protocol with higher downstream bandwidth.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If traditional centralized video processing systems use high-bandwidth transmissions to deliver video data to LED displays, then video quality and resolution are improved, but system cost, latency, and complexity increase significantly

Engineering Contradiction:

Improvevideo qualityVSAvoidsystem complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The video data stream is segmented into tile-specific portions, with each LED tile receiving only its relevant data portion through the serialized protocol. This segmentation approach maintains high video quality for each tile while reducing overall system complexity and bandwidth requirements compared to traditional centralized processing.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system transitions from traditional 2D HDMI/SDI cable connections to a 3D spatial serialized data path that distributes video data through multiple dimensions (multiple cables, multiple tiles, multiple data portions). This dimensional change enables efficient data delivery to multiple LED tiles simultaneously, reducing latency and system complexity.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Stability of the object's composition

If centralized processing is used to deliver video data to multiple LED tiles, then video data consistency is maintained, but latency and processing time increase

Engineering Contradiction:

Improvevideo data consistencyVSAvoidlatency

Core Design Contradiction:

Stability of the object's compositionVSLoss of time

Solution Approach 1:

The video data is pre-organized into tile-specific portions in the correct spatial order before transmission. Each LED tile can immediately extract and process its relevant data portion as it passes through the serialized protocol, eliminating the need for waiting and reorganization at each tile, thus reducing latency while maintaining data consistency.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The serialized video protocol enables continuous data flow through the system without interruption or buffering at intermediate points. Video data flows continuously from the source through multiple LED tiles in sequence, with each tile processing its portion in real-time, thereby minimizing latency while maintaining data integrity.

Inventive Principle:

Principle #20Continuity of useful action

3Manufacturing precision

If high-bandwidth transmission protocols are implemented to support high-resolution displays, then display resolution and quality are improved, but system cost increases

Engineering Contradiction:

Improvedisplay resolutionVSAvoidsystem cost

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The system uses standard, cost-effective Ethernet cables and common protocol implementations instead of expensive specialized high-bandwidth transmission hardware. The serialized video protocol can be implemented using readily available components, significantly reducing system cost while still supporting high-resolution displays through efficient data segmentation and transmission.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

4Adaptability or versatility

If individual tile configuration is required in traditional systems, then display flexibility is improved, but configuration complexity and difficulty increase

Engineering Contradiction:

Improvedisplay flexibilityVSAvoidconfiguration complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Each LED tile is assigned a specific spatial position and receives video data portions corresponding to its location in the display array. The serialized protocol inherently delivers the correct data to each tile based on its position in the data path, eliminating the need for complex manual configuration while maintaining display flexibility and adaptability.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS20260075276A1Video processing in modular display system and method

Publication Date: 2026.03.12 STEREYO BVBA

AI summary

An active receiver card for a display is provided. The active receiver comprises a processor, a first interface, and a second interface. The first interface is configured to receive a broadcast serialized video data stream as input from a video processing system. The active receiver card is configured to be electrically connected to a tile of a display. The active receiver card further comprises a second interface configured to output control signals to a plurality of pixels of the tile of the display. The processor of the active receiver card is configured to extract from the received broadcast serialized video data stream video image data pertaining to the tile of the display, and based thereon, the active receiver card is configured to output the control signals used to control a plurality of pixels of the tile of the display.