Starting Signal Module for Synchronized Splicing Display Panels

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Splicing display devices with multiple display panels often experience asynchronous display, leading to image quality loss due to the lack of synchronized starting signals across panels.

Innovation Solution

A starting signal providing module is introduced, comprising a detection circuit, signal generating circuits, and enabling circuits. This module generates feedback signals from valid scan driving signals, provides enabling control signals, and controls the supply of starting signals to ensure synchronized display across panels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If each display panel uses independent scan driving circuits without synchronization control, then the device complexity is reduced, but display synchronization is lost causing image quality loss

Engineering Contradiction:
Improvescan driving circuit configurationVSAvoiddisplay synchronization
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent implements a feedback mechanism where the last-stage scan driving signal output terminal feeds back to the detection circuit, which then generates enabling control signals to synchronize the starting signals of multiple display panels. This feedback loop ensures that all panels receive synchronized starting signals while maintaining relatively simple independent scan driving circuits for each panel.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent introduces an intermediary synchronization control module comprising a detection circuit and enabling circuits. This intermediary component mediates between the independent scan driving circuits of multiple display panels, generating and distributing synchronized starting signals to ensure all panels display synchronously without requiring complex inter-connected scan driving circuits.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a synchronization control module is added to ensure display synchronization, then image quality is improved, but the device complexity increases

Engineering Contradiction:
Improvedisplay synchronizationVSAvoidstarting signal providing module
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The synchronization control module is segmented into functionally independent components: a detection circuit that detects scan driving signals, signal generating circuits that generate enabling control signals, and enabling circuits that control starting signal distribution. This segmentation allows each component to perform its specific function with simple circuit design, reducing overall complexity while ensuring display synchronization.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The detection circuit automatically detects the scan driving signals from each display panel's scan driving circuit and autonomously generates the corresponding enabling control signals. This self-service mechanism eliminates the need for external complex control systems, as the module itself manages the synchronization without requiring additional sophisticated external controllers.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS12211440B2Starting signal providing module, method and splicing display device
Publication Date: 2025.01.28 BOE TECHNOLOGY GROUP CO LTD
  • US12211440B2 patent drawing
  • US12211440B2 patent drawing
  • US12211440B2 patent drawing

AI summary

A starting signal providing module, a starting signal providing method and a splicing display device are provided. The starting signal providing module comprises a detection circuit, a plurality of signal generating circuits and a plurality of enabling circuits. The signal generating circuit is configured to generate and provide a feedback signal to the detecting circuit when a last-stage scan driving signal output terminal of a scan driving circuit in a corresponding display panel outputs a valid scan driving signal. The detection circuit is configured to provide an enabling control signal to enabling circuits corresponding to at least two signal generating circuits according to the feedback signals from at least two signal generating circuits. The enabling circuit is configured to control a starting signal to be supplied to a scan driving circuit included in a corresponding display panel upon receiving the enabling control signal.