Display Color Gamut Matrix Conversion
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Solution Overview
Problem
Display devices often face color accuracy issues when displaying images created in one color gamut standard on a device that supports a different standard, leading to undesirable variations in hue, saturation, or brightness, particularly when a wide-spectrum color gamut image is shown on a device with a lower color gamut capability.
Innovation Solution
A display device with a controller that receives an image file and determines color conversions to generate a converted color gamut matrix, allowing it to display images in different color gamuts simultaneously across various areas, using the same type of light sources, thereby improving color accuracy without requiring prior knowledge of the display device's operational color gamut.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a display device displays images created in one color gamut standard on a device with a different color gamut standard, then the display device can show images with broader color compatibility, but the color accuracy deteriorates with undesirable variations in hue, saturation, or brightness
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting color gamut parameters through matrix conversion. The controller receives image data with a first color gamut matrix, determines a color conversion, and generates a second color gamut matrix adapted to the display device's color gamut capabilities, thereby resolving the contradiction between compatibility and accuracy
Solution Approach 2:
The patent uses a color conversion matrix as an intermediary between the source image color space and the display device color space. This intermediary enables accurate color translation by serving as a mathematical bridge that preserves color relationships while adapting to different gamut standards
2Measurement precision
If the display device requires prior knowledge of its operational color gamut to accurately display images, then color accuracy is improved, but the ease of operation deteriorates as users must know technical specifications
Solution Approach 1:
The display device performs self-service by automatically detecting its own color gamut characteristics and adapting the color conversion process accordingly. The controller determines the appropriate color gamut matrix conversion without requiring user input or knowledge of technical specifications, making the system both accurate and easy to use
3Adaptability or versatility
If the display device supports multiple color gamut standards simultaneously, then the adaptability improves for displaying different types of images, but the device complexity increases
Solution Approach 1:
The patent implements universality by designing a single color conversion system that can handle multiple color gamut standards. The controller is configured to receive image data with different color gamut matrices and automatically adapt the conversion process, enabling one system to serve multiple color space requirements without requiring separate processing paths for each standard
Data Source
AI summary
In some examples, a non-transitory machine-readable medium stores machine-readable instructions. When executed by a controller, the machine-readable instructions cause the controller to drive a first subset of multiple light sources of a display device using a first color gamut matrix and drive a second subset of the multiple light sources of the display device using a second color gamut matrix. A light source of the second subset is a same type of light source as a light source of the first subset.