Cascade Control for Display Module Address Assignment

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Solution Overview

Problem

Existing display devices with multiple connected modules face inefficiencies in the debugging and address assignment process, leading to low assembly efficiency and fixed positional relationships between modules.

Innovation Solution

A display device comprising multiple display modules, each with a display component and a signal processing component, including a first processor that determines address information for other modules based on a cascade rule and outputs this information via a communication interface, allowing for flexible and efficient assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual address assignment and debugging is performed for each display module, then address information can be accurately assigned, but assembly efficiency is low and the process is time-consuming

Engineering Contradiction:
Improveassembly efficiencyVSAvoiddebugging time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The display modules automatically assign addresses to themselves through the cascade control mechanism. When modules are connected in cascade, the first module receives a start signal and automatically generates address information for itself and subsequent modules, eliminating the need for manual address assignment and significantly reducing debugging time

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system performs address assignment automatically as part of the initial cascade startup process before actual display operation begins. The address information is pre-configured through the cascade connection topology, so when modules are physically connected, addresses are automatically assigned without requiring separate manual configuration steps

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If display modules are connected in fixed positional relationships, then connection is simplified, but flexibility in assembly and arrangement is reduced

Engineering Contradiction:
Improveassembly flexibilityVSAvoidconnection complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The cascade control interface is designed to be universal across all display modules, with standardized signal lines that can handle both address assignment and control functions. This universal interface allows modules to be connected in various arrangements (series, parallel, hierarchical) while maintaining the same connection protocol, greatly enhancing assembly flexibility

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system dynamically adapts to different cascade connection topologies. Whether modules are connected in series, parallel, or hierarchical arrangements, the cascade control mechanism automatically adjusts the address assignment sequence based on the physical connection, allowing flexible reconfiguration without changing the fundamental connection protocol

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20250117178A1Display device and cascade control method
Publication Date: 2025.04.10 BEIJING BOE DISPLAY TECH CO LTD
  • US20250117178A1 patent drawing
  • US20250117178A1 patent drawing
  • US20250117178A1 patent drawing

AI summary

A display device is provided. The display device includes a plurality of display modules, wherein each of the plurality of display modules comprises a display component and a signal processing component; and the plurality of display modules comprise a first display module, the first display module including a first display component and a first signal processing component; wherein the first signal processing component comprises a first communication interface, a second communication interface, and a first processor, wherein the first processor is configured to determine, according to a cascade rule of the plurality of display modules, address information of display modules other than the first display module, and output the address information of other display modules via the second communication interface.