Integrated GOA Unit for Simplified Display Driving Circuit
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Solution Overview
Problem
Existing OLED display technologies require separate circuits for generating gate driving and reset signals, complicating the manufacturing of display driving circuits and increasing difficulty.
Innovation Solution
A Gate driver On Array (GOA) unit that integrates multiple node control and output modules to generate both gate driving and reset signals, simplifying the display driving circuit by outputting these signals through a single unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate circuits are used for generating gate driving signal and reset signal, then the functions are fulfilled, but the manufacturing difficulty increases
Solution Approach 1:
The patent combines the gate driving circuit and reset circuit into a single integrated GOA unit. The circuit shares common components including power supply terminals (VDD, VSS), signal input terminals (INPUT1, INPUT2, INPUT3), and output terminals (OUTPUT1, OUTPUT2). The integration is achieved through shared switching elements (T1-T14) and capacitors (C1, C2) that serve dual functions in both signal generation pathways, thereby reducing manufacturing complexity while maintaining independent signal output capabilities.
2Reliability
If separate circuits are used for gate driving and reset signals, then signal generation is achieved, but the circuit structure becomes complex
Solution Approach 1:
The circuit merges gate driving and reset signal generation by sharing power supply connections (VDD, VSS), input terminals (INPUT1, INPUT2, INPUT3), and output terminals (OUTPUT1, OUTPUT2). The switching elements T1-T14 and capacitors C1, C2 are configured to serve both signal generation functions simultaneously, reducing the overall circuit structure complexity while maintaining independent signal output paths.
Solution Approach 2:
The GOA unit is designed with universal components that perform multiple functions. The switching elements and capacitors are configured to operate in different modes to generate both gate driving signals and reset signals. The circuit accepts multiple input signals (INPUT1, INPUT2, INPUT3) and produces two distinct output signals through shared functional blocks, embodying multi-functionality that reduces structural complexity.
Data Source
AI summary
The present disclosure relates to the display technologies, which provides a GOA unit, a GOA circuit, a display driving circuit and a display device, for outputting a gate driving signal and a reset signal of a pixel electrode through a GOA unit, to simplify the display driving circuit. The GOA unit comprises a first node control module, a second node control module, a third node control module, a first output module and a second output module, wherein the first output module outputs the gate driving signal under the control of the node voltage of a first node, the node voltage of a second node and a second input signal inputted at a second input terminal; and the second output module outputs the reset signal of the pixel electrode under the control of the node voltage of the second node, the node voltage of the third node and a third input signal inputted at a third signal input terminal.