Display Scan Drive Circuit for Adaptive Regional Refresh
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Solution Overview
Problem
Conventional display panels face high logic drive power consumption due to unnecessary refreshes in areas with static content, such as black or still images, and existing gate driver circuits are inefficient in managing different refresh rates for different areas.
Innovation Solution
A drive control circuit with a first control circuit and multiple second control circuits that independently manage scan signal lines, allowing areas with static content to be refreshed at reduced rates or not refreshed at all, while maintaining high-quality display in dynamic areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire display panel is refreshed at a high rate, then image quality is maintained, but logic drive power consumption increases
Solution Approach 1:
The display panel is divided into multiple independent refreshable areas, each controlled by a separate second control circuit. This allows different refresh rates to be applied to different regions based on content requirements, thereby reducing overall power consumption while maintaining image quality in areas that need it.
Solution Approach 2:
The refresh rate of each area is dynamically adjusted based on content changes detected by the first control circuit. Areas with static content are refreshed at lower rates or not at all, while areas with dynamic content maintain high refresh rates, optimizing the balance between image quality and power consumption.
2Device complexity
If a single gate driver circuit is used for the entire display panel, then device complexity is reduced, but the ability to manage different refresh rates for different areas is lost
Solution Approach 1:
The gate driver functionality is segmented into a first control circuit that manages multiple second control circuits, each responsible for specific scan signal lines. This hierarchical structure enables different refresh rates for different areas while maintaining manageable system complexity through modular design.
Solution Approach 2:
The first control circuit serves multiple functions: it monitors content changes across the display panel, determines which areas require refreshing, and controls multiple second control circuits. This multi-functionality allows the system to manage different refresh rates without proportionally increasing overall complexity.
Data Source
AI summary
The embodiments of the present disclosure provide a drive control circuit, a control method thereof, and a display apparatus. The drive control circuit includes: a first control circuit configured to acquire image data, and output a first selection command signal according to the image data; and at least one second control circuit each coupled to at least one scan signal line in a display panel and coupled to the first control circuit. The at least one second control circuit is configured to receive the first selection command signal, determine, according to the first selection command signal, a target scan signal line from among scan signal lines in the display panel, and output a scan drive signal to the target scan signal line.