Curved Display Pixel Mapping Using Non-Constant Scale Ratio
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Solution Overview
Problem
Conventional methods for displaying images on curved displays result in image distortion due to the use of a constant scale ratio, leading to degraded image quality, especially towards the lateral side edges of the curved screen.
Innovation Solution
Implementing a non-constant scale ratio between virtual and physical pixels on a curved display, dynamically adjusted based on field-of-view point reference data and display curvature data, allowing for a varying number of virtual pixels to be mapped to physical pixels across different columns, thereby reducing distortion and enhancing image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a constant scale ratio is used for mapping virtual pixels to physical pixels on a curved display, then the mapping process is simple and uniform, but image distortion increases towards the lateral side edges
Solution Approach 1:
The patent applies local quality by varying the scale ratio according to the spatial position on the curved display. Different regions (center vs. lateral edges) use different scale ratios to compensate for curvature-induced distortion. This allows each local region to have optimized mapping characteristics, improving overall image quality while accounting for the curved surface geometry.
Solution Approach 2:
The patent implements dynamics by making the scale ratio adaptive rather than static. The scale ratio dynamically adjusts based on the position of virtual pixels and the curvature characteristics of the display. This dynamic adjustment enables the system to respond to different spatial locations and curvature conditions, reducing distortion across the entire curved display surface.
2Productivity
If a constant scale ratio is used for pixel mapping, then the computational process is efficient and straightforward, but image content becomes distorted on curved displays
Solution Approach 1:
The patent applies parameter changes by modifying the scale ratio parameter based on spatial position and curvature data. Instead of using a fixed constant, the scale ratio becomes a variable parameter that changes according to the virtual pixel's position in the virtual scene and the corresponding physical pixel's location on the curved display. This parameter adaptation reduces information loss due to distortion while maintaining computational efficiency through optimized calculation methods.
3Stability of the object's composition
If virtual pixels are uniformly mapped to physical pixels across the curved display, then the mapping is consistent and simple, but distortion increases towards the lateral edges
Solution Approach 1:
The patent applies asymmetry by introducing asymmetric scale ratios for different regions of the curved display. Rather than uniform symmetric mapping, the system uses asymmetric scaling where lateral edge regions have different scale factors compared to central regions. This asymmetric approach compensates for the geometric distortion inherent in curved displays, improving image quality at the lateral edges while maintaining overall mapping coherence.
Data Source
AI summary
Methods and apparatus provide pixel information for display. In one example, the methods and apparatus map, using a computing device, pixel information of a virtual rendering surface to a physical curved display screen based on field-of-view point reference data and display curvature data of one or more curved displays using a non-constant scale ratio among a plurality of differing physical pixels in at least one row of a portion of the physical curved display screen. Display data is output based on the mapped pixel information for display to the one or more curved displays.