Pixel Data Conversion for Delta Panel Half-Pixel Dislocation
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Solution Overview
Problem
Current pixel data conversion methods for delta panels result in reduced resolution, leading to issues like zigzag edges, line deformation, and color fringing due to inadequate consideration of the panel's interlaced pixel arrangement and half-pixel dislocation between odd and even horizontal lines.
Innovation Solution
A pixel data conversion method and apparatus that includes a first color domain converter, determinator, 1D scalers, second color domain converter, and low pass filtering mapper to convert input video signals from RGB to YCrCb and back, effectively scaling and filtering to maintain or enhance resolution while accounting for the delta panel's unique pixel structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional pixel data conversion methods are used for delta panels, then the conversion process is simple, but the resolution is reduced and image quality deteriorates with zigzag edges, line deformation, and color fringing
Solution Approach 1:
The patent segments the pixel data conversion process into multiple distinct stages: color space conversion (RGB to YCbCr), horizontal scaling to compensate for half-pixel dislocation, and low-pass filtering to prevent aliasing. Each stage addresses a specific aspect of the conversion problem, allowing for precise control over image quality while managing complexity through modular processing steps.
Solution Approach 2:
The patent applies preliminary actions by performing color space conversion and horizontal scaling before the final mapping to delta panel coordinates. The low-pass filtering is applied in advance to prevent aliasing artifacts before the data reaches the display panel. These preliminary processing steps ensure that the final conversion maintains high image quality without requiring complex real-time adjustments.
2Productivity
If resolution is reduced in pixel data conversion, then the conversion is faster and simpler, but image quality deteriorates with artifacts like zigzag edges and color fringing
Solution Approach 1:
The patent changes key parameters in the conversion process: converting from RGB to YCbCr color space to separate luminance and chrominance information, adjusting horizontal scaling to account for half-pixel dislocation in delta panels, and applying low-pass filtering with specific cutoff frequencies. These parameter changes enable efficient processing while maintaining image quality by addressing the specific geometric characteristics of delta panel arrangements.
3Device complexity
If the interlaced pixel arrangement and half-pixel dislocation are not considered, then the conversion process is simpler, but line deformation and zigzag edges occur
Solution Approach 1:
The patent addresses the asymmetric half-pixel dislocation characteristic of delta panels by applying different horizontal scaling factors to odd and even horizontal lines. This asymmetric treatment compensates for the staggered pixel arrangement, preventing geometric distortions and zigzag edges while maintaining a relatively simple conversion process through targeted adjustments rather than complete reconfiguration.
Data Source
AI summary
A pixel data conversion method for display with delta panel arrangement converts an input video signal into a temporary video signal which is a first RGB signal with 960 horizontal resolution in strip panel arrangement and converts the temporary video signal into an output video signal which is a RGB signal with 320 horizontal resolution in delta panel arrangement. Each line of the output video signal has 960 pixels, wherein a sequence of red pixel, green pixel, and blue pixel is repeatedly arranged for an odd-numbered horizontal line, and a sequence of green pixel, blue pixel, and red pixel is repeatedly arranged for an even-numbered horizontal line. The position of each pixel in an even-numbered horizontal line has a half-pixel dislocation to the position of each pixel in an odd-numbered horizontal line.