Ambient Light Color Compensation via Intermediate Mapping
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Solution Overview
Problem
Current display devices fail to effectively compensate for ambient light, leading to degradation of color gamut performance and washout, which is undesirable in applications requiring high color accuracy.
Innovation Solution
A system and method that involves receiving ambient light measurements to determine an intermediate mapping from a first color space to a second color space, allowing for remapping of display data to compensate for ambient light, using an ambient light sensor and a gamut modifier system within the display device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ambient light compensation is applied to maintain color accuracy, then color accuracy is improved, but color gamut performance degrades and washout occurs
Solution Approach 1:
The patent introduces an intermediate color space as a mediator between the display's native color space and the target color space. By mapping through this intermediate space rather than directly, the system can compensate for ambient light effects while preserving color gamut integrity and avoiding washout. The intermediate space acts as a buffer that enables precise color correction without direct manipulation of the display's native colors.
Solution Approach 2:
The system dynamically changes color space mapping parameters based on ambient light conditions. By adjusting the intermediate color space parameters according to measured ambient light characteristics, the system maintains color accuracy across varying lighting conditions while preventing gamut degradation and washout effects.
2Measurement precision
If ambient light compensation is applied to ensure accurate color representation, then color accuracy is improved, but device complexity increases
Solution Approach 1:
The intermediate color space serves as a computational intermediary that simplifies the overall processing architecture. Rather than implementing complex direct compensation algorithms, the system uses the intermediate space to break down the color transformation into manageable steps, reducing computational complexity while maintaining accuracy.
Solution Approach 2:
The system performs preliminary color space mapping to the intermediate space before final color correction. This preliminary action prepares the color data in advance, making subsequent ambient light compensation more straightforward and reducing the complexity of real-time processing.
Data Source
AI summary
Systems and methods that provide compensation for ambient light in a location of a display device are described. According to various embodiments, a method of compensating for ambient light in a display device is provided. According to the method, an ambient light measurement may be received. The ambient light measurement may include information concerning the intensity of the ambient light present at the location of the display device, the spectrum of the ambient light present at the display device (e.g., color temperature, white balance, or wavelength), and/or both an intensity and a spectrum of the ambient light.