Gate Driving Unit Circuit Reducing Shift Register Count
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Solution Overview
Problem
Existing gate driving circuits require a large number of shift registers, leading to increased space occupancy and hindering the implementation of narrow bezel displays due to each phase of the shift register driving only one gate line.
Innovation Solution
A gate driving unit circuit with a shift register and multiple driving signal output sub-circuits, where each sub-circuit is coupled to multiple gate lines and driven by non-overlapping scan signals, allowing one shift register to control multiple gate lines, thereby reducing the number of shift registers needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If each phase of shift register drives only one gate line, then the control precision is improved, but the area of gate driving circuit increases
Solution Approach 1:
The gate driving circuit is segmented into multiple independent driving signal output sub-circuits, each capable of driving a separate gate line. Each sub-circuit includes its own transistor and capacitor components that can be independently controlled by the shift register phases, allowing one shift register to drive multiple gate lines while maintaining precise control over each individual line.
Solution Approach 2:
The shift register phases are designed to serve multiple functions by controlling multiple driving signal output sub-circuits simultaneously. Each phase of the shift register can drive multiple gate lines through the sub-circuits, making the shift register a multi-functional component that reduces the overall circuit area while maintaining control precision through its universal control capability.
2Area of stationary object
If the number of shift registers is reduced, then the area of gate driving circuit is reduced, but the device complexity increases
Solution Approach 1:
Multiple driving signal output sub-circuits are merged into a single gate driving unit circuit that is controlled by one shift register. The sub-circuits share common control signals from the shift register phases and are integrated within the same circuit structure, reducing the total number of shift registers needed while managing complexity through systematic integration of the sub-circuit components.
Data Source
AI summary
The present application provides a gate driving unit circuit and a method of driving the same, a gate driving circuit and a display apparatus. The gate driving unit circuit includes a shift register and a plurality of driving signal output sub-circuits. Each driving signal output sub-circuit corresponds to one of gate lines on an array substrate, is coupled to a first power supply terminal and a signal output terminal of the shift register, and also coupled to a corresponding one of driving scan signal lines. Each driving signal output sub-circuit is configured to output, under the control of a signal output by the signal output terminal of the shift register, a driving scan signal provided by the corresponding driving scan signal line or an OFF voltage provided by the first power supply terminal to the corresponding gate line.