Display Controller Luminance and Color Gamut Adjustment
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Solution Overview
Problem
Display panels exhibit individual differences in performance due to manufacturing variations, affecting image quality and user experience across different devices, especially when enhancing resolution, color gamut, and luminance range for high-definition and high-presence images.
Innovation Solution
A display controller that adjusts image data output to match a standard luminance and color gamut by storing measurement values of the display panel's characteristics, acquiring standard values, and adjusting luminance and color settings to ensure consistent image display across various panels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If display panels are manufactured with higher resolution, color gamut, and luminance range to achieve high-definition and high-presence images, then image quality is improved, but individual differences and performance variations between panels increase
Solution Approach 1:
The patent applies parameter changes by adjusting the luminance range of displayed images based on measurement values from the specific display panel. The display controller modifies display parameters (luminance range) to compensate for individual panel characteristics, thereby maintaining consistent image quality across different panels while preserving the benefits of high-definition display capabilities.
2Illumination intensity
If the luminance range is expanded to represent high dynamic range (HDR) images with greater reality, then image realism is improved, but the influence of individual panel differences on display quality increases
Solution Approach 1:
The patent dynamically adjusts the luminance range parameter based on the specific panel's measurement values. By modifying the display luminance range to match each panel's characteristics, the system maintains HDR image realism while ensuring consistent display quality across different panels, preventing individual differences from degrading the HDR experience.
Solution Approach 2:
The system implements feedback by using measurement values obtained from each display panel to inform the luminance range adjustment process. The display controller receives feedback about the panel's specific characteristics and uses this information to optimize the luminance range settings, thereby achieving both high HDR quality and consistency across different panels.
Data Source
AI summary
In a display controller, a standard information acquisition unit acquires at least one of a luminance characteristic and a color gamut of a standard display panel. A luminance information storage unit of an output adjustment unit stores a measurement value of a luminance characteristic of a panel of a displaying destination. A luminance range adjustment unit gradually adjusts a luminance range for an image to be a luminance range same as that of the standard display panel. A color gamut information storage unit stores a measurement value of a color gamut of the panel of the displaying destination. A color adjustment unit adjusts a pixel value of an image on the basis of the color gamut such that the image is displayed in a color same as that on the standard display panel.