Gate Driver Circuit Forward Reverse Scanning Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing gate driver circuits for liquid crystal display panels lack diversification in scanning methods, limiting their ability to meet the varied requirements of different display products and are dependent on external ICs for horizontal scan line control.
Innovation Solution
A gate driver circuit that cascades odd-numbered and even-numbered stage GOA circuits, utilizing specific signal lines and timing signals to control forward and reverse scanning, allowing for diverse scanning methods by coordinating the potentials of scan signals and startup signals with different timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If external IC is used to control horizontal scan line, then scanning function is achieved, but bonding process complexity increases and productivity decreases
Solution Approach 1:
The patent merges the gate driver circuit with the array substrate by fabricating the driver circuit directly on the same substrate as the display pixels. This integration eliminates the need for separate external IC components and their associated bonding processes, thereby simplifying the overall device structure and improving productivity.
Solution Approach 2:
The array substrate performs its own driving function by incorporating the gate driver circuit directly on it. The substrate becomes self-sufficient by generating and controlling its own scan signals through the integrated driver circuit, eliminating dependence on external IC components.
2Adaptability or versatility
If simple forward or reverse scanning is used, then circuit structure is simple, but scanning method diversity is limited
Solution Approach 1:
The patent implements dynamic scanning capabilities by enabling the circuit to switch between multiple scanning modes (forward scanning, reverse scanning, progressive scanning, interlaced scanning) based on control signals. The circuit structure remains relatively simple while achieving versatility through dynamic reconfiguration of signal transmission paths and timing control.
Data Source
AI summary
The present disclosure provides a gate driver circuit, which cascades each even-numbered stage GOA circuit; corresponding to said odd-numbered stage GOA provides an odd-numbered stage scan signal, and odd-numbered stage startup signal, an odd-numbered stage timing signal; corresponding to said even-numbered stage GOA circuit provides an even-numbered stage scan signal, an even-numbered stage startup signal, an even-numbered stage timing signal; through controlling the potential of odd-numbered stage scan signal and even-numbered stage scan signal, coordinating with odd-numbered stage startup signal and even-numbered stage startup signal with different timing, it can control odd-numbered stage GOA circuit and even-numbered stage GOA circuit to respectively carry on forward scanning or reverse scanning. The present disclosure also provides a display device applying said gate driver circuit.