Display Apparatus Color Adjustment via Lookup Table
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Solution Overview
Problem
Existing self-emitting display apparatuses face challenges in easily adjusting the emission color of light emitting element groups due to temporal changes in emission brightness, making it difficult for users to achieve intended colors, especially with thousands of possible combinations of R and B element brightness settings.
Innovation Solution
A display apparatus and method that adjusts the emission brightness of R and B elements using pre-stored adjustment ratios and user input, allowing for easy color adjustment by determining adjustment amounts based on chromaticity shift calculations and displaying adjustment parameters to users, thereby compensating for temporal color shifts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the emission brightness of R and B elements is adjusted individually to compensate for temporal color shifts, then the emission color can be corrected, but the operation complexity increases due to thousands of possible combinations
Solution Approach 1:
The patent segments the color adjustment process by pre-calculating and storing adjustment ratios for R and B elements in a lookup table, organized by driving time intervals. This divides the complex continuous adjustment problem into discrete, pre-computed steps, allowing the system to retrieve the correct adjustment parameters without evaluating all possible combinations.
Solution Approach 2:
The patent performs preliminary calculations of adjustment ratios during the manufacturing or initialization phase, storing them in advance in a lookup table. This preliminary action eliminates the need for real-time complex calculations during actual color adjustment operations, significantly reducing user operation complexity while maintaining precision.
2Stability of the object's composition
If the emission brightness of R and B elements is adjusted to compensate for temporal changes, then the emission color stability improves, but the adjustment time and complexity increase
Solution Approach 1:
The patent pre-calculates adjustment ratios for various driving time intervals and stores them in a lookup table during initialization. This preliminary computation eliminates the need for time-consuming real-time calculations during actual color adjustment, reducing adjustment time while maintaining color stability compensation.
Solution Approach 2:
The patent implements a feedback mechanism where the system detects the current driving time and retrieves the corresponding adjustment ratio from the lookup table. This feedback loop enables continuous color stability maintenance without requiring manual intervention or complex real-time computation, efficiently balancing time and precision.
Data Source
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AI summary
A storage unit (107) stores first adjustment information which characterizes the correspondence between adjustment parameters which are capable of being set and adjustment amounts of the emission brightness of each of two light emitting elements of the three light emitting elements. A setting unit (102,104) sets the adjustment parameter. An adjustment unit (106) adjusts the emission brightness of the two light emitting elements based on the adjustment parameter set via the setting unit and the first adjustment information stored by the storage unit.