Multi-Primary Color Conversion Method for Display Panels
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Solution Overview
Problem
Conventional display panels with three primary colors struggle to accurately convert color information into gray scales for multiple primary colors, leading to inaccurate color representation, especially with higher resolution displays that require more power and data transmission.
Innovation Solution
A multi-primary color conversion method that establishes a spatial gamut model in the CIE xyY color space, determines target peripheral surfaces, and calculates reference gray scales using a conversion matrix to accurately convert color information into gray scales of multiple primary colors, such as red, green, blue, yellow, cyan, and magenta.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional three primary color conversion method is used, then the conversion process is simple, but the color representation accuracy deteriorates when displaying multi-primary color panels
Solution Approach 1:
The color conversion process is segmented into multiple distinct steps: establishing spatial gamut model, determining target peripheral surface, calculating reference gray scales for partial primary colors, calculating reference gray scales for remaining primary colors, and converting reference gray scales to target gray scales. This segmentation allows complex multi-primary color conversion to be handled through manageable sequential operations.
Solution Approach 2:
The patent introduces intermediate variables including spatial gamut model, target peripheral surface identification, and reference gray scales as mediators between the input color information and final output gray scales. These intermediaries facilitate the complex conversion process by breaking it down into computable stages.
2Measurement precision
If higher resolution display is implemented, then the display quality is improved, but the power consumption and data transmission requirements increase
Solution Approach 1:
The patent changes the parameter space by working in CIE xyY color space with spatial gamut models rather than direct RGB conversions. This parameter transformation enables more efficient color representation that reduces the computational burden and data transmission requirements for high-resolution displays.
3Measurement precision
If conventional color conversion is used for multi-primary panels, then the processing is fast, but the color accuracy deteriorates
Solution Approach 1:
The spatial gamut model is established beforehand as a pre-computed reference structure containing all possible displayable colors. This preliminary action enables rapid color conversions during actual display operations by simply querying the pre-established model rather than performing complex real-time calculations.
Solution Approach 2:
The conversion to CIE xyY color space and use of spatial gamut modeling changes the computational parameters from direct multi-primary conversions to geometric operations in color space, which can be performed more efficiently while maintaining high accuracy.
Data Source
AI summary
A multi-primary color conversion method is provided to include: establishing a spatial gamut model of a display panel; determining a target peripheral surface corresponding to the target color according to the color coordinates of the target color and color coordinates of a color corresponding to each vertex of each peripheral surface; obtaining reference gray scales of a part of primary colors of the target color according to gray scales of the primary colors of a color corresponding to each vertex of the target peripheral surface; obtaining reference gray scales of the rest primary colors of the target color and a reference luminance of the target color; and respectively converting the reference gray scales of the plurality of primary colors of the target color into target gray scales according to a proportional relationship between the reference luminance and the target luminance of the target color.