GOA Circuit Forward Reverse Scanning Control Unit Elimination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional Gate Driver on Array (GOA) circuits require additional signal lines and devices for forward and reverse scanning functions, leading to increased power consumption and inability to meet narrow border requirements.
Innovation Solution
The GOA circuit design eliminates the need for a forward and reverse scanning control unit by connecting a circuit input of a pull-down output module and a drive module, utilizing a configuration of thin film transistors (TFTs) and diodes to achieve scanning functions, reducing circuit area and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a forward and reverse scanning control unit is added to achieve scanning functions, then the scanning capability is improved, but the circuit area and power consumption increase
Solution Approach 1:
The patent merges the forward and reverse scanning control functions into the existing drive module by sharing circuit components. The drive module's output is connected to both the pull-down output module and pull-up output module, eliminating the need for a separate control unit. This integration reduces circuit area while maintaining dual scanning capability.
Solution Approach 2:
The drive module serves multiple functions by being connected to both pull-down and pull-up output modules. A single control signal from the drive module can trigger either forward or reverse scanning depending on the state of the output modules, making the system multi-functional without requiring additional dedicated control circuitry.
2Adaptability or versatility
If a forward and reverse scanning control unit is added to achieve scanning functions, then the scanning capability is improved, but the power consumption increases
Solution Approach 1:
By merging the control functions into the existing drive module, the patent eliminates redundant control circuitry that would consume additional power. The shared connection between the drive module and both output modules allows a single control signal to manage both scanning directions, reducing overall power consumption.
Solution Approach 2:
The system uses the existing drive module's output to self-control both pull-down and pull-up operations. The control signal generated within the drive module automatically manages the scanning direction without requiring external control power, making the system self-sufficient and reducing power consumption.
3Adaptability or versatility
If additional signal lines and devices are added for scanning control, then the scanning function is achieved, but the border width requirement cannot be met
Solution Approach 1:
The patent combines the scanning control functionality into the existing drive module location, eliminating the need for separate control units that would require additional signal lines extending to panel borders. This integration allows scanning control without increasing border width.
Data Source
AI summary
A gate driver on array (GOA) circuit and a display device are provided. The GOA circuit is formed on an array substrate, and has a plurality of GOA units. Each of the GOA units has a drive module, a pull-down module, a pull-down output module, and a pull-up output module, which has a forward and reverse scanning function and avoids providing a forward and reverse scanning control unit and receiving a signal of the forward and reverse scanning control unit by connecting a circuit input of a pull-down output module and a drive module.