Color Coordinate Calibration for Display Panels
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Solution Overview
Problem
Current display technologies face challenges in efficiently calibrating color coordinates to meet stringent standards, particularly for broadcast-grade professional monitors, due to deviations in primary color wavelengths, leading to cumbersome manual adjustments and potential brightness and color gamut losses.
Innovation Solution
A method for color coordinate calibration that involves displaying test images, detecting chromaticity, and adjusting primary color lights' coordinates within standard ranges by calculating intersection points and adjustment coefficients in a color gamut space, minimizing brightness loss and color gamut coverage loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual adjustment of display parameters is performed repeatedly to meet test standards, then color coordinate accuracy is improved, but calibration time and operational complexity increase significantly
Solution Approach 1:
The patent applies preliminary action by pre-calculating the optimal adjustment amount for each display parameter based on the deviation from standard color coordinates. Instead of manual trial-and-error adjustment, the system computes the required parameter changes in advance and applies them automatically, significantly reducing calibration time while maintaining color coordinate accuracy.
Solution Approach 2:
The patent replaces the mechanical/manual adjustment process with an automated computational system. The system uses algorithms to calculate parameter adjustments and automatically modifies display parameters through software control, eliminating the need for manual repeated adjustments and reducing calibration time while improving precision.
2Manufacturing precision
If manual adjustment of display parameters is performed repeatedly to meet test standards, then color coordinate accuracy is improved, but operational complexity increases
Solution Approach 1:
The patent applies self-service by enabling the calibration system to automatically detect color coordinate deviations, calculate required adjustments, and apply parameter modifications without human intervention. The system serves itself by autonomously completing the entire calibration process, transforming it from a complex manual operation to an automated self-calibrating process that maintains high precision while simplifying operation.
Solution Approach 2:
The patent replaces manual operational mechanics with automated computational mechanics. The system uses software algorithms to detect deviations, compute optimal adjustments, and apply parameter changes automatically, eliminating the need for operators to perform repeated manual adjustments and significantly reducing operational complexity.
3Manufacturing precision
If display parameters are adjusted to meet color standards, then color accuracy is improved, but brightness and color gamut coverage may be lost
Solution Approach 1:
The patent applies parameter changes by systematically adjusting multiple display parameters (including gamma, white balance, and primary color coordinates) in a coordinated manner. The system calculates optimal adjustment amounts for each parameter based on the specific deviation from color standards, enabling color accuracy improvement while compensating for potential brightness loss through balanced parameter modification.
Solution Approach 2:
The patent applies partial action by selectively adjusting only the specific display parameters that deviate from color standards, rather than modifying all parameters. The system identifies and adjusts only the necessary parameters (e.g., specific primary color coordinates or gamma values), minimizing unnecessary changes that could cause brightness loss or color gamut reduction.
4Manufacturing precision
If display parameters are adjusted to meet color standards, then color accuracy is improved, but color gamut coverage may be reduced
Solution Approach 1:
The patent applies parameter changes by coordinating adjustments across multiple display parameters to achieve color accuracy while preserving color gamut. The system calculates adjustment amounts that satisfy color standard requirements without excessively compressing the color gamut, using balanced modification of primary color coordinates and other parameters to maintain overall color space coverage.
Solution Approach 2:
The patent applies partial action by selectively adjusting only the parameters necessary to meet color accuracy standards, leaving other parameters that contribute to color gamut coverage unchanged. This targeted approach ensures color accuracy improvement while minimizing impact on overall color gamut coverage.
Data Source
AI summary
A color coordinate calibration method, system, a processing device and a computer storage medium are provided. The method includes: displaying a test image on a display screen, testing the chromaticity of the display screen, and obtaining test color coordinates of a plurality of primary color lights; Detecting whether the test color coordinates of the plurality of primary color lights are within the standard color coordinate ranges of the plurality of primary color lights; when the test color coordinates of one or more primary color lights are not within the standard color coordinate ranges of the corresponding primary color lights, determining target color coordinates and target white balance color temperatures of a plurality of primary color lights, and adjusting the test color coordinates of one or more primary color lights to be within standard color coordinate ranges of the corresponding primary color lights.