Vehicle Display Frame Rate Prioritization by Occupant Visual Field
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Solution Overview
Problem
In vehicle cockpits with multiple displays, the frame rates of different image contents displayed on separate displays can vary, leading to discomfort for occupants due to differences in motion and processing load, especially when high-processing-load content is displayed, causing noise and potential non-display issues.
Innovation Solution
A vehicle display system that includes a display processing unit, visual field detecting unit, and processing load changing unit to ensure that image contents within the occupant's visual field range maintain a minimum frame rate by reallocating processing resources, prioritizing the display process for these contents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple image contents are displayed on separate displays with different processing loads, then the display system can provide diverse information, but the frame rates vary causing occupant discomfort
Solution Approach 1:
The patent applies local quality by differentiating frame rate requirements based on the occupant's visual field. Image contents within the visual field range are assigned a first (higher) frame rate, while those outside are assigned a second (lower) frame rate. This localized differentiation ensures smooth display where needed while reducing overall processing load.
Solution Approach 2:
The patent implements dynamics by making frame rates adjustable based on real-time detection of the occupant's visual field range. The frame rate for each image content is not fixed but dynamically changed according to whether it falls within the detected visual field, allowing the system to adapt to varying display conditions and maintain comfort.
2Quantity of substance
If high processing load image contents are displayed, then comprehensive information is provided, but frame rate drops causing noise and potential non-display issues
Solution Approach 1:
The patent ensures continuity of useful action by maintaining the display process for image contents within the visual field range even when processing load is high. By prioritizing these contents with a higher frame rate and reducing processing load of other contents, the system ensures continuous, stable display of critical information without interruption or noise.
Solution Approach 2:
The patent applies partial action by selectively maintaining high frame rates only for image contents within the visual field range while allowing lower frame rates for others. This partial prioritization ensures that the most important display tasks receive sufficient processing resources while less critical tasks can operate with reduced resources.
3Speed
If frame rate is increased for image contents in visual field range, then viewing smoothness is improved, but overall processing load increases
Solution Approach 1:
The patent segments image contents into two categories based on their position relative to the occupant's visual field: those within the range requiring higher frame rates and those outside requiring lower frame rates. This segmentation allows the system to allocate processing resources efficiently, providing high smoothness where needed while conserving overall processing capacity.
Data Source
AI summary
A vehicle display system, by executing a computer-readable program, being configured to: display multiple image contents in separate display areas of a display device arranged in a vehicle; detect a visual field range of an occupant of the vehicle; determine whether a frame rate of a certain image content displayed in the visual field range satisfies a lowest reference, the certain image content being one of the multiple image contents; and in response to determining that the frame rate of the certain image content does not satisfy the lowest reference, reduce a processing load of a different process while maintaining a display process of the certain image content in the visual field range of the occupant.