Dynamic Refresh Rate Control for Display Bandwidth Optimization
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Solution Overview
Problem
Existing display systems are limited in dynamically adjusting refresh rates based solely on software aspects, failing to effectively manage power consumption and bandwidth, particularly in scenarios where hardware components and their capabilities vary.
Innovation Solution
A bandwidth-driven system that identifies hardware and software aspects to dynamically adjust the refresh rate of a display system, using an application programming interface (API) to manage inactive time periods and adjust refresh rates for each frame or group of frames, thereby controlling bandwidth and power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the refresh rate is increased to maintain display quality, then the display quality is improved, but the power consumption increases
Solution Approach 1:
The system dynamically adjusts the refresh rate based on real-time bandwidth availability and display content characteristics. Instead of using a fixed refresh rate, the system continuously monitors system conditions and adapts the refresh rate accordingly, allowing it to be high when bandwidth is abundant and low when bandwidth is constrained, thus resolving the contradiction between display quality and power consumption
Solution Approach 2:
The system changes the refresh rate parameter based on detected bandwidth conditions and content types. By monitoring system bandwidth availability and adjusting the refresh rate parameter dynamically, the system optimizes the balance between display quality (which requires higher refresh rates) and power consumption (which increases with higher refresh rates)
2Use of energy by moving object
If the refresh rate is dynamically adjusted based on software aspects, then the power savings are achieved, but the bandwidth management is insufficient
Solution Approach 1:
The system combines software-based refresh rate adjustment with hardware bandwidth monitoring capabilities into a unified multi-functional system. This allows the system to not only save power through dynamic refresh rate adjustment but also effectively manage bandwidth by considering both software content characteristics and hardware bandwidth availability, thus resolving the limitation of software-only approaches
3Use of energy by moving object
If the refresh rate is reduced to save power, then the power consumption is reduced, but the display quality may deteriorate
Solution Approach 1:
The system applies different refresh rates to different regions or types of display content based on their specific requirements. By analyzing the display content characteristics (such as static vs. dynamic content) and applying appropriate refresh rates locally, the system maintains high display quality for content that requires it while using lower refresh rates for content that doesn't, thus resolving the contradiction between power consumption and display quality
Data Source
AI summary
A bandwidth-driven system, method, and computer program product are provided for changing a refresh rate of a display system. In use, a bandwidth associated with a display system is identified. To this end, a refresh rate of the display system may be changed for controlling the bandwidth.