Dual-Output Gate Driver Circuit for Narrow-Frame Displays
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Solution Overview
Problem
Existing display technologies face challenges in efficiently managing diverse pixel circuit requirements and reducing the non-display region to achieve a narrow frame in display substrates.
Innovation Solution
A drive control circuit with an input circuit and two output circuits that output signals with varying voltage levels, polarities, time lengths, and voltage fluctuations to cater to different pixel circuits, integrated into a gate driver circuit on a display substrate, allowing for efficient signal management and reduced non-display region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a gate driver circuit is integrated on the display substrate, then the non-display region can be reduced to achieve a narrow frame, but the circuit complexity increases due to diverse pixel circuit requirements
Solution Approach 1:
The drive control circuit is designed with dual output circuits (first and second output circuits) that can provide different output signals with varying voltage levels, polarities, time lengths, and voltage fluctuation stages. This multi-functional design allows a single integrated circuit to satisfy diverse pixel circuit requirements without increasing the non-display region, thereby resolving the contradiction between reducing area and managing complexity.
2Reliability
If diverse output signals are provided to meet different pixel circuit requirements, then pixel circuit performance is enhanced, but the device complexity increases
Solution Approach 1:
The drive control circuit is segmented into multiple functional modules including an input circuit, a first output circuit, and a second output circuit. Each module can independently generate output signals with specific characteristics (voltage level, polarity, time length, voltage fluctuation stage), allowing tailored signal provision for different pixel circuits while maintaining manageable device complexity through modular architecture.
3Area of stationary object
If the non-display region is minimized for narrow frame design, then the display area ratio increases, but the space for signal management circuits is reduced
Solution Approach 1:
The gate driver circuit merges multiple signal management functions into a single integrated structure on the display substrate. The first and second output circuits are combined within the same drive control circuit, enabling both circuits to be controlled by the input circuit simultaneously. This merging approach provides diverse signal management capabilities within a compact footprint, increasing the display area ratio while maintaining adaptability.
Data Source
AI summary
Disclosed is a drive control circuit including an input circuit (10), a first output circuit (11), and a second output circuit (12). The first output circuit (11) is electrically connected with the input circuit (10) and a first output end (OUT1) and is configured to output a first output signal from the first output end (OUT1) under control of the input circuit (11). The second output circuit (12) is electrically connected with the input circuit (10) and a second output end (OUT2), or electrically connected with the first output end (OUT1) and a second output end (OUT2), and is configured to output a second output signal from the second output end (OUT2) under control of the input circuit (10) or the first output end (OUT1). The first output signal is different from the second output signal.