Adaptive Color-Temperature Calibration for LCD Pixels
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Solution Overview
Problem
Conventional color-temperature calibration methods for LCD pixels, which rely on a predetermined basis matrix assuming a white pixel, fail to effectively calibrate pixels with different chromaticity, leading to color deviations.
Innovation Solution
An adaptive color-temperature calibration system comprising a chrominance generation unit, a matrix generation unit, and a color calibration unit that generates a calibration matrix based on the chrominance criterion of each input pixel, allowing for personalized calibration by interpolating between a basis matrix and a unit matrix depending on the pixel's chrominance value.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a predetermined basis matrix is used for color-temperature calibration, then the calibration algorithm is simple, but color deviation occurs when the pixel is substantially different from the white pixel
Solution Approach 1:
The patent applies the dynamics principle by making the calibration matrix adaptive rather than fixed. The system dynamically generates a calibration matrix based on the chromaticity coordinates of each pixel, allowing the matrix to adjust automatically according to the specific pixel characteristics. This resolves the contradiction by maintaining algorithm simplicity through automated adaptation while improving calibration accuracy for pixels with varying chromaticity.
Solution Approach 2:
The patent implements parameter changes by modifying the calibration matrix parameters based on the input pixel's chromaticity. Instead of using a single predetermined basis matrix, the system changes the matrix parameters adaptively according to the pixel's specific chromaticity coordinates, thereby improving calibration accuracy without significantly increasing algorithmic complexity.
2Productivity
If a fixed calibration matrix is used for all pixels, then the calibration process is efficient, but it cannot effectively calibrate pixels with different chromaticity
Solution Approach 1:
The patent applies the self-service principle by enabling each pixel to calibrate itself using its own chromaticity coordinates. The system provides a self-adaptive calibration mechanism where the calibration matrix is automatically generated based on the specific pixel's characteristics, eliminating the need for manual intervention or fixed universal matrices while maintaining processing efficiency.
Solution Approach 2:
The system changes the calibration matrix parameters adaptively based on each pixel's chromaticity, allowing the calibration process to be both efficient and adaptable to different pixel types.
3Ease of operation
If conventional color-temperature calibration is applied to non-white pixels, then the processing is straightforward, but color deviation is generated
Solution Approach 1:
The patent makes the calibration process dynamic by automatically adjusting the calibration matrix based on the pixel's chromaticity. This maintains ease of operation through automated adaptation while improving color calibration precision for pixels with varying chromaticity characteristics.
Data Source
AI summary
An adaptive color-temperature calibration system and method are disclosed. A chrominance generation unit generates a chrominance criterion according to an input pixel. A matrix generation unit generates a calibration matrix according to the chrominance criterion and a basis matrix. A color calibration unit then performs color-temperature calibration on the input pixel according to the generated calibration matrix, thereby generating an output pixel.