Screen Color Gamut Tuning for Low-Melanopic Blue Light
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Solution Overview
Problem
Conventional blue light reduction technologies in electronic devices cause unrealistic colors and missing of picture details, failing to meet the high requirements of image processing and photography applications.
Innovation Solution
A method for screen display that calculates the melanopic lux per photopic lux ratio of sub-color lights and eliminates those exceeding a preset standard, adjusting the screen display to reduce melatonin inhibition while retaining color gamut and detail.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the color gamut of blue and green areas is compressed to reduce blue light impact, then the negative impact of blue light on melatonin production is reduced, but color gamut is lost resulting in unrealistic colors and missing picture details
Solution Approach 1:
The patent applies local quality by differentiating the treatment of different color regions. Instead of uniformly compressing the entire color gamut, it selectively adjusts only the blue and green areas while preserving red and other colors. This localized adjustment reduces blue light impact on melatonin while maintaining the vibrancy and accuracy of other color ranges, thus resolving the contradiction between health protection and color quality.
Solution Approach 2:
The patent changes the parameter of color temperature by adjusting the color gamut compression level. It introduces a color temperature parameter that can be dynamically adjusted based on usage scenarios and time of day. By changing this parameter, the system can reduce blue light impact during nighttime while maintaining full color gamut during daytime, thus resolving the contradiction between reducing melatonin inhibition and preserving color quality.
2Object-affected harmful factors
If conventional blue light reduction methods are applied, then melatonin production is protected, but high requirements of image processing and photography applications cannot be met
Solution Approach 1:
The patent applies dynamics by making the color gamut compression level adjustable and adaptive. Instead of a fixed reduction method, it allows dynamic adjustment based on usage scenarios (e.g., photography, video conferencing, general use) and time of day. This enables the system to provide strong blue light protection during nighttime while maintaining full color gamut for professional applications during daytime, thus resolving the contradiction between melatonin protection and application adaptability.
Solution Approach 2:
The patent achieves multi-functionality by designing a universal screen display system that can serve multiple purposes. It can function as a normal display during daytime, as a blue light protection display during nighttime, and as a professional color-accurate display for photography and video conferencing. By integrating these multiple functions into a single system with adjustable parameters, it resolves the contradiction between melatonin protection and application-specific adaptability.
Data Source
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AI summary
Embodiments of this application provide a method, an apparatus, and a device for screen display, and a storage medium. Spectral information of light of a plurality of sub-colors in an original color light color gamut of a screen display picture is obtained separately. A melanopic lux per photopic lux ratio of the light of the sub-colors is calculated based on the spectral information of the light of the sub-colors. Sub-color light having a melanopic lux per photopic lux ratio that exceeds a preset melanopic lux per photopic lux ratio standard is eliminated from the original color light, so that the screen displays updated color light, where the preset melanopic lux per photopic lux ratio standard is a standard set based on a goal of reducing melatonin inhibition. The sub-color light is eliminated in a targeted manner based on the preset melanopic lux per photopic lux ratio standard, so that the updated color light displayed on the screen retains a large quantity of color ranges and picture details, and a negative impact of blue light on a user is more effectively reduced simultaneously.