Display Terminal Color Correction via Dynamic Gamma Adjustment
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Solution Overview
Problem
Existing display terminals suffer from inconsistency in color display due to variations in production techniques, leading to differences in display quality across batches and modules, which current technologies address by increasing manufacturing standards and costs.
Innovation Solution
A color correction method and system where the master control unit generates a color adjusting ratio, which is used by the display driver to perform separate adjustments for RGB components, generating responsive pixel voltages for consistent color display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manufacturing standards are raised to minimize production technique variation, then display consistency is improved, but product cost increases
Solution Approach 1:
The patent changes the parameter of gamma correction from a fixed manufacturing specification to a dynamically adjustable parameter. Each display module is assigned a unique gamma correction value that compensates for its specific production variations, allowing consistent display quality across different manufacturing batches without requiring stricter production controls
Solution Approach 2:
The patent performs preliminary measurement of each display module's actual display characteristics during or after assembly, then pre-calculates and stores the appropriate gamma correction value for that specific module. This preliminary characterization allows the system to compensate for manufacturing variations through software adjustment rather than requiring perfect manufacturing precision
2Device complexity
If gamma correction value is fixed in display driver after assembly, then device complexity is reduced, but adaptability to different display panels is worsened
Solution Approach 1:
The patent transforms the gamma correction value from a static, fixed parameter to a dynamic one that can be individually assigned to each display module. The system maintains simplicity by automatically selecting and applying the appropriate gamma correction value based on the specific module being used, rather than requiring manual configuration or complex adjustment mechanisms
Solution Approach 2:
The patent creates a digital copy or model of each display module's characteristics by measuring and storing its specific gamma correction value. This digital representation allows the system to replicate ideal display behavior across different physical modules by applying the appropriate correction values, effectively copying the desired display performance to each unique hardware instance
Data Source
AI summary
A method and system relating to color correction for the display terminal of a display device, such method includes a master control unit generating color adjusting ratios, a display driver using the color adjusting ratios to perform color calibration, and a display panel displaying the resulting colors. Specifically, the master control unit generates adjusting ratios for the RGB color data and the display driver separately adjusts each color according to the percentage of R, G, and B in the ratio to generate a resulting pixel voltage. The system consists of a master control unit, a display driver, and a display panel. The master control unit contains an initialization block, having the following special characteristics: a master control unit with a color adjusting module that receives the color adjusting ratio sent from a color setting block, adjusts color data according to the adjusting ratio, generates the resulting pixel voltage, and displays the colors via a display panel. This invention is easy to operate, inexpensive to produce, and highly practicable.