Dynamic Display Refresh Rate Control for Power Optimization
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Solution Overview
Problem
Conventional portable computing systems face increased power consumption in highly illuminated or outdoor environments due to the need to maximize display intensity, which is not efficiently managed by existing manual adjustment features.
Innovation Solution
An information handling system with a refresh rate processing module and selector logic that dynamically adjusts the refresh rate of the display based on the type of content to be displayed, using a video graphics interface to provide appropriate refresh rates ranging from 20 to 60 Hertz, thereby reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If display intensity is increased to maximum value for viewing in highly illuminated environments, then visibility is improved, but power consumption increases
Solution Approach 1:
The system dynamically adjusts the display refresh rate based on the type of content being displayed. For video content, it uses higher refresh rates (e.g., 60Hz), while for static or less demanding content, it reduces the refresh rate (e.g., to 20Hz or lower). This dynamic adaptation allows the display to maintain adequate visibility across different environments and content types while minimizing power consumption by avoiding unnecessarily high refresh rates.
2Productivity
If refresh rate is increased to display robust and complex content, then content display quality is improved, but power consumption increases
Solution Approach 1:
The system changes the refresh rate parameter based on the complexity and type of content being displayed. The processor analyzes the content characteristics and adjusts the refresh rate accordingly - using higher refresh rates for complex, fast-moving content and lower refresh rates for simpler, static content. This parameter adaptation ensures adequate display quality for robust content while reducing power consumption for less demanding content types.
Data Source
AI summary
A system and method for providing dynamic refresh rates for displays is disclosed. According to one aspect of the disclosure, an information handling system can include a refresh rate processing module coupled to a memory operable to store video display content. The information handling system can further include a display unit operable to display the video display content using a variable refresh rate. The information handling system can further include a refresh rate selector logic coupled to the display unit display. The refresh rate selector logic can be operable to alter the variable refresh rate in response to a content type stored within the memory.