Display Gamma Adaptation Using Ambient Color Temperature Sensing
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Solution Overview
Problem
Existing display devices suffer from specular reflection and glare, leading to reduced visibility and inability to adjust display effects based on ambient light color temperature, resulting in a lack of immersion for users.
Innovation Solution
A display device equipped with a color temperature sensor, computing unit, and gamma unit that adjusts gamma curves and sub-pixel data signals to match ambient light conditions, enhancing display quality by aligning screen color temperature with ambient light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a special coating is provided on the screen to reduce reflection, then some glare is reduced, but a small amount of reflected light and glare remains, preventing users from obtaining the same experience as viewing paper
Solution Approach 1:
The patent changes the parameter of color temperature to match ambient light conditions. By detecting ambient color temperature and adjusting display output accordingly, the system creates a paper-like viewing experience that reduces the perceptual impact of reflections and glare, making the display more reliable for reading tasks.
2Adaptability or versatility
If the display device uses fixed display settings, then the device complexity is low, but it cannot provide different display effects as ambient light color temperature changes, resulting in lack of immersion
Solution Approach 1:
The patent implements a feedback mechanism where a color temperature sensor detects ambient light conditions and feeds this information to the control unit. The control unit then adjusts display parameters including gamma curves and color temperature to match ambient conditions, creating an adaptive display system that enhances immersion without excessive complexity.
Solution Approach 2:
The system dynamically changes display parameters such as gamma curves and color temperature based on ambient light conditions. This allows the display to adapt to different lighting environments, providing appropriate display effects for reading and other tasks while maintaining manageable system complexity through parameter-based adjustment.
3Illumination intensity
If the display device does not adjust to ambient light conditions, then the device complexity is low, but strong specular reflection light reduces visibility and makes it difficult to read information
Solution Approach 1:
The patent uses a color temperature sensor to detect ambient lighting conditions and feeds this information back to the control unit. The control unit then adjusts display gamma curves and color temperature to compensate for ambient light effects, improving screen visibility and reducing the impact of specular reflections without requiring complex mechanical adjustments.
Data Source
AI summary
A display device includes a color temperature sensor, a computing unit, a gamma unit and a display panel. The color temperature sensor is used to sense color temperature of ambient light, and output target white point information. The computing unit is coupled to the color temperature sensor for calculating adjustment factors corresponding to red, green and blue colors based on the target white point information. The gamma unit is coupled to the computing unit for receiving the adjustment factors and adjusting gamma curves corresponding to red, green and blue colors. The display panel includes a red sub-pixel, a green sub-pixel and a blue sub-pixel, wherein the display panel is coupled to the gamma unit for receiving an image signal, and providing data signal to the red sub-pixel, the green sub-pixel and the blue sub-pixel based on the gamma curves corresponding to red, green and blue colors.