RGBW Display Data Processing for Brightness and Color Saturation
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Solution Overview
Problem
The transition from RGB to RGBW four-color display technology faces challenges in maintaining color saturation and brightness, as the addition of a white signal can lead to color fading due to the dilution effect, requiring an efficient method to convert RGB signals to RGBW without distortion.
Innovation Solution
A data processing method that calculates chromaticity coordinates and adjusts intermediate grayscale values based on the position relationship between the input RGB values and the white basic point in a chromaticity diagram, ensuring the chromaticity coordinate remains unchanged and enhancing brightness and display effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a white sub-pixel is added to form RGBW pixel structure, then brightness and transmittance are improved, but color saturation deteriorates due to dilution effect
Solution Approach 1:
The patent dynamically adjusts the white sub-pixel grayscale value based on the chromaticity coordinates of the input RGB signal. By calculating the position relationship between the chromaticity coordinate and white basic point, the system determines an appropriate white component intensity that enhances brightness while maintaining color accuracy. This parameter adjustment resolves the contradiction by making the white sub-pixel contribution adaptive rather than fixed.
Solution Approach 2:
The patent introduces chromaticity coordinate calculation and position relationship analysis as intermediary steps between RGB input and RGBW output. These intermediate calculations serve as mediators to intelligently control the white sub-pixel activation, ensuring that brightness enhancement does not come at the cost of color saturation loss.
2Illumination intensity
If white component is added to RGB grayscale values, then transmittance is improved, but color accuracy deteriorates
Solution Approach 1:
The system dynamically changes the white sub-pixel grayscale parameter based on chromaticity analysis. By monitoring the position relationship between the chromaticity coordinate and white basic point, the system adjusts the white component intensity to maintain color accuracy while improving transmittance. This adaptive parameter control prevents color distortion that would occur with fixed white component addition.
3Use of energy by moving object
If RGB signals are converted to RGBW signals, then power consumption is reduced, but color fidelity deteriorates
Solution Approach 1:
The patent employs dynamic parameter adjustment of the white sub-pixel grayscale value based on chromaticity coordinate analysis. This ensures that the white component is activated at optimal intensity levels to reduce power consumption while maintaining color fidelity. The adaptive control prevents color distortion that would result from indiscriminate white sub-pixel activation.
Data Source
AI summary
A data processing method, an image display driving method, a data processing device, a display panel and a computer-readable storage medium are provided. The data processing method includes: based on input RGB grayscale values, calculating a chromaticity coordinate of the input RGB grayscale values on a chromaticity diagram, in which the chromaticity diagram includes a white basic point; calculating to obtain intermediate grayscale values containing a white component, based on the input RGB grayscale values and according to a position relationship between the chromaticity coordinate and the white basic point; and adjusting the intermediate grayscale values to obtain output RGBW grayscale values.