GOA Circuit Virtual Reset Module Stability
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Solution Overview
Problem
Differences in structure or thin film transistor (TFT) process between different GOA units in the GOA circuit reduce the stability of the circuit.
Innovation Solution
A GOA circuit comprising cascaded GOA units with a reset module in the first unit and a virtual reset module in the second unit, where the virtual reset module is configured to reduce differences between the units, improving stability by maintaining structural consistency and simplifying the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If different GOA units are used in the GOA circuit, then the circuit functionality is achieved, but structural differences between units reduce circuit stability
Solution Approach 1:
The invention divides the GOA circuit into multiple GOA units (first GOA unit, second GOA unit, etc.) that are cascaded together. Each unit is further segmented into functional modules such as reset modules, drive modules, and compensation modules. This segmentation allows each unit to be independently designed and manufactured while maintaining overall circuit functionality, addressing the need for circuit operation despite manufacturing variations.
Solution Approach 2:
The invention introduces a virtual reset module in the second GOA unit that mirrors the reset module in the first GOA unit. By changing the structural parameters to include this virtual component, the patent compensates for potential instability caused by manufacturing differences. The virtual reset module has the same configuration as the reset module, ensuring parameter consistency across units and improving overall circuit stability.
2Adaptability or versatility
If a complex GOA circuit structure is used to achieve full functionality, then all circuit functions are realized, but the complexity increases manufacturing difficulty and reduces stability
Solution Approach 1:
The GOA circuit is divided into distinct functional modules: reset modules for initializing nodes, drive modules for signal amplification, and compensation modules for maintaining signal integrity. Each module performs a specific function, allowing the complex circuit to be broken down into manageable, independently optimizable segments that reduce overall manufacturing complexity.
Solution Approach 2:
The virtual reset module is created as a copy of the reset module configuration. This copying approach allows the second GOA unit to mirror the structural advantages of the first unit without requiring complete redundancy of all components. The virtual module replicates only the critical reset functionality, reducing complexity while maintaining adaptability.
3Productivity
If standard TFT processes are used for manufacturing, then production efficiency is maintained, but process variations between units reduce circuit stability
Solution Approach 1:
The patent introduces the virtual reset module with identical structural parameters to the reset module, creating parameter symmetry across GOA units. This parameter change ensures that even when standard TFT processes produce variations, the mirrored structure compensates for inconsistencies, maintaining manufacturing precision without requiring specialized processes.
Solution Approach 2:
The reset module and virtual reset module use the same structural design and manufacturing approach, making them universal components within the GOA circuit. This universality allows standard TFT processes to be applied consistently across all units, maintaining productivity while the replicated structure ensures process consistency compensates for normal manufacturing variations.
Data Source
AI summary
A gate driver on array (GOA) circuit and a display panel are provided. The GOA circuit includes a plurality of cascaded GOA units. The GOA units include a first GOA unit and a second GOA unit. By setting a virtual reset module in the second GOA unit, and the virtual reset module corresponding to the reset module in the first GOA unit, a difference between the first GOA unit and the second GOA unit is reduced and stability of the GOA circuit is improved.