Gate Driving Circuit Detecting Scanning Signal Abnormalities
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The integration of GOA circuits within display device panels makes it difficult to analyze gate scanning signal waveforms, leading to challenges in diagnosing and addressing signal abnormalities, which can cause display issues.
Innovation Solution
A gate driving circuit with a detecting circuit that includes a collecting sub-circuit and a recording sub-circuit, utilizing switch transistors and diodes to collect and record gate scanning signals, and an analog-to-digital conversion circuit to convert signals for analysis, allowing for real-time detection and diagnosis of signal abnormalities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If GOA circuits are integrated inside the panel to reduce manufacturing cost and achieve narrow frame, then manufacturing cost is reduced and frame width is narrowed, but the ability to obtain and analyze gate scanning signal waveforms from outside is lost
Solution Approach 1:
The patent introduces a detecting circuit as an intermediary component that bridges the integrated GOA circuit and the external testing environment. This detecting circuit includes a collecting sub-circuit with switch transistors that can selectively connect to different gate lines, and a recording sub-circuit that captures and stores the gate scanning signal waveforms. This intermediary structure allows signal analysis without requiring external access to the integrated circuits, thus resolving the contradiction between integration and testability.
2Ease of manufacture
If gate scanning signals are output through integrated GOA circuit, then manufacturing cost is reduced, but the ability to detect and diagnose signal abnormalities is impaired
Solution Approach 1:
The patent implements a feedback mechanism where the detecting circuit continuously monitors the gate scanning signals output by the integrated GOA circuit. The collecting sub-circuit captures signals from various gate lines, and the recording sub-circuit stores these signals for analysis. This feedback system enables real-time detection of signal abnormalities such as missing pulses or incorrect waveforms, allowing for timely diagnosis and maintenance while keeping the GOA circuit integrated, thus resolving the contradiction between integration and reliability monitoring.
Data Source
AI summary
The present disclosure provides a gate driving circuit and a driving method thereof as well as a display device. The gate driving circuit comprises a driving circuit connected to a gate line for outputting a gate scanning signal; and a detecting circuit connected to the gate line for collecting and recording the gate scanning signal.