Display Partition Frame Rate Control via Gate Driver Reset Pulses
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Solution Overview
Problem
Traditional display panels operate at a single frame rate for all partitions, leading to high power consumption when partitions with different refresh needs are not optimized, as either all partitions operate at a high rate wasting power or at a low rate insufficient for frequent refresh requirements.
Innovation Solution
A control device that selectively transmits reset pulses to a gate driver to adjust the frame rate of different partitions on a display panel, allowing each partition to operate at a unique refresh rate by clearing scanning pulses in the gate driver at specific times, thereby adapting the frame rates of different display areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If all display partitions operate at a high frame rate, then the refresh quality for partitions needing frequent updates is improved, but the power consumption of the display panel increases
Solution Approach 1:
The display panel is divided into multiple independent partitions, each capable of operating at different frame rates. The controller separately manages the frame rate of each partition based on its specific refresh requirements, allowing the first partition to operate at a first frame rate and the second partition to operate at a second frame rate, thereby avoiding unnecessary power consumption in static areas while maintaining high refresh rates in dynamic areas
Solution Approach 2:
Different partitions of the display panel are assigned different frame rates according to their specific usage scenarios. The first partition (requiring frequent refresh) operates at a higher frame rate while the second partition (static content) operates at a lower frame rate, optimizing power consumption by matching the refresh quality to the local content requirements rather than uniformly applying high frame rate across the entire display
2Use of energy by moving object
If all display partitions operate at a low frame rate, then the power consumption of the display panel is reduced, but the refresh quality for partitions needing frequent updates deteriorates
Solution Approach 1:
The display panel is segmented into multiple partitions with independent frame rate control. The controller identifies which partitions require frequent refresh and assigns them higher frame rates, while assigning lower frame rates to partitions with static content, thereby ensuring that power consumption is reduced only in areas where it is appropriate without compromising the refresh quality of dynamic content areas
Solution Approach 2:
Each partition is assigned a frame rate appropriate to its content requirements. The first partition displaying dynamic content maintains a high frame rate for smooth refresh, while the second partition displaying static content operates at a low frame rate to save power, achieving local optimization of the frame rate parameter across different regions of the display panel
3Device complexity
If a single frame rate is used for all display partitions, then the control complexity is reduced, but the adaptability to different usage scenarios deteriorates
Solution Approach 1:
The system transitions from a static, uniform frame rate configuration to a dynamic, adaptive frame rate configuration. The controller dynamically adjusts the frame rate of each partition based on real-time detection of content characteristics and usage scenarios, enabling the display panel to adaptively respond to different application requirements such as video playback, image display, or mixed content scenarios
Solution Approach 2:
The frame rate parameter is changed from a fixed global value to a variable local value for each partition. The controller modifies the frame rate parameter of individual partitions based on their specific requirements, allowing the system to adapt to different usage scenarios by adjusting the temporal display characteristics of different regions independently
Data Source
AI summary
A display apparatus and a control device and a control method thereof are provided. A controller of the control device controls a gate driver of a display panel. The controller selects a first selected frame and a second selected frame in each frame group, wherein an adjacent position between a first partition and a second partition of the display panel corresponds to a corresponding time point in each frame of the first selected frame and the second selected frame. The controller transmits a reset pulse to the first gate driver at the corresponding time point in the second selected frame to clear a scanning pulse in the gate driver, and cancels the reset pulse at the corresponding time point in the first selected frame. Thus, the control device enables different display partitions of the display panel to have different frame rates or refresh rates.