Dynamic Display Resolution Adjustment for Power Optimization
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Solution Overview
Problem
High resolution displays in mobile computing devices consume significant power, necessitating reduced power consumption without compromising image quality or user interactions.
Innovation Solution
Implementing a method to down-convert images to a lesser bit depth during static image periods, using scoring criteria based on saturation levels and pixel intensity to minimize memory bandwidth and power usage, while maintaining image quality during active alterations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If high resolution display is used to deliver high quality imagery and smooth user interface interactions, then image quality and user experience are improved, but power consumption increases significantly
Solution Approach 1:
The patent dynamically adjusts display resolution based on scene complexity and motion detection. When scenes are simple or static, the display operates at lower resolution to conserve power. When scenes are complex or changing, it switches to higher resolution to maintain image quality. This dynamic adaptation resolves the contradiction by making resolution a variable parameter rather than a fixed setting.
Solution Approach 2:
The system changes the resolution parameter of the display based on real-time analysis of image content and motion. By adjusting this key parameter according to actual needs, the system achieves high image quality only when necessary, thereby reducing overall power consumption while maintaining acceptable visual experience.
2Speed
If fast processing is implemented to deliver high resolution imagery and smooth user interface interactions, then user experience is improved, but power consumption increases
Solution Approach 1:
Instead of continuously processing and displaying at maximum resolution, the system applies partial processing only when necessary. It selectively processes high-resolution imagery only for complex or moving scenes, while using simplified processing for static or simple scenes. This partial action approach maintains smooth user experience when needed while significantly reducing power consumption during static periods.
Solution Approach 2:
The system implements periodic updates rather than continuous high-speed processing. It monitors scene changes and triggers high-resolution processing only when changes are detected, otherwise maintaining lower processing rates. This periodic action pattern reduces the average power consumption while preserving the ability to deliver smooth interactions when required.
3Manufacturing precision
If continuous high resolution scanning is performed, then image quality is maintained, but memory bandwidth consumption and power usage increase
Solution Approach 1:
The patent segments the display update process into different resolution modes based on content requirements. It divides the scanning operation into high-resolution segments for complex scenes and low-resolution segments for simple scenes. This segmentation allows the system to maintain high image quality only where and when necessary, reducing overall memory bandwidth consumption and power usage.
Solution Approach 2:
The display scanning resolution is made dynamic rather than static. The system continuously assesses scene complexity and adjusts the scanning resolution accordingly, switching between high and low resolution modes. This dynamic adjustment maintains acceptable image quality while significantly reducing the continuous power demand associated with sustained high-resolution scanning.
Data Source
AI summary
Various embodiments relating to reducing memory bandwidth consumed by a continuous scan display screen are provided. In one embodiment, an indication of a static image period of a continuous scan display screen is determined. A reference image of a first image format having a first bit depth is converted into a modified image of a second image format having a second bit depth that is less than the first bit depth. During the static image period, the modified image is scanned onto the continuous scan display screen.