AMOLED Scan Driving Circuit with Selector-Based Signal Routing
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Solution Overview
Problem
Existing AMOLED scan driving circuits are inadequate for providing multiple gate control signals, limiting their functionality.
Innovation Solution
An AMOLED scan driving circuit with shift register units and logical units connected via selectors, controlled by clock and start pulse signals, and logic signals, allowing for the output of various scan driving signals through selection control signals, enabling the circuit to handle multiple gate control signals effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an existing AMOLED scan driving circuit is used, then the circuit structure is simple, but it cannot output multiple gate control signals
Solution Approach 1:
The scan driving circuit is designed to perform multiple functions by enabling it to output different types of gate control signals (single gate control signal or multiple gate control signals) based on different operating modes. The circuit structure includes shift register units and logical units that can be configured to generate either a single gate control signal or multiple gate control signals, making the circuit universal and adaptable to different display panel requirements without needing separate dedicated circuits for each function.
2Adaptability or versatility
If the circuit is designed to support multiple gate control signals, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The scan driving circuit is divided into multiple functional modules including shift register units and logical units. Each shift register unit can independently generate scan signals, and the logical units process these signals to produce gate control signals. This segmentation allows the circuit to support multiple gate control signals by activating additional logical units while maintaining a modular structure that manages complexity through functional decomposition.
Solution Approach 2:
The circuit employs dynamic configuration capabilities where the operational mode can be switched between single gate control signal mode and multiple gate control signal mode. The logical units can be dynamically enabled or disabled based on the required output mode, allowing the circuit to adapt its complexity level to match the actual application requirements, thus supporting multiple gate control signals only when needed while maintaining simplicity for single-signal applications.
Data Source
AI summary
Provided is an AMOLED scan driving circuit and method as well as a liquid crystal display panel and device. The circuit comprises shift register units and logical units. Selectors are arranged between adjacent shift register units and between adjacent logical units, and different scan driving signals are output when the selectors are controlled by selection control signals, the shift register units are controlled by clock signals and start pulse signals, and the logical units are controlled by logic control signals.