Backlight Module Design Using Mathematical Modeling
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Solution Overview
Problem
Existing methods for designing flat-screen TVs with LCD panels fail to systematically optimize mechanical and optical properties for optimal performance, particularly in terms of luminance and uniformity.
Innovation Solution
A method involving mathematical modeling to determine optimal configuration for a backlight module system using linear programming, considering multiple parameters and constraints, which includes defining optimization parameters, generating data tables for mechanical and optical properties, performing stepwise regression, selecting a model, specifying constraints, and solving the system using iterative linear programming to achieve optimal optical performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional design methods are used for backlight module structures, then manufacturing is simplified with standard configurations, but optical performance (luminance and uniformity) cannot be systematically optimized
Solution Approach 1:
The patent applies parameter changes by systematically varying mechanical parameters (component positions, distances, angles) and optical parameters (luminance distribution, uniformity metrics) to achieve optimal optical performance. The design method establishes mathematical relationships between these parameters and uses optimization algorithms to determine the best parameter combinations for both manufacturing feasibility and optical performance.
2Device complexity
If mechanical and optical parameters are considered separately, then design complexity is reduced, but overall system optimization is compromised
Solution Approach 1:
The patent merges mechanical and optical parameter optimization into a unified design framework. It establishes coupled mathematical models that simultaneously consider mechanical constraints (component spacing, structural integrity) and optical objectives (luminance uniformity, brightness distribution). The optimization algorithm iteratively solves both sets of parameters together, ensuring that mechanical design decisions directly inform optical performance and vice versa, achieving true system-level optimization.
Data Source
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AI summary
There is provided a method of designing a backlight module for a flat panel display device having an liquid crystal display (LCD) panel, the method comprising the steps of: defining mechanical and optical parameters for mechanical and optical components of the display device; generating a model based at least in part on the defined mechanical and optical parameters, the model defining one or more relationships between one or more mechanical and/or optical parameters; applying constraints on the values of the mechanical and optical parameters within the model; utilising the model and said defined constraints to generate a configuration of mechanical and optical components forming a design of a backlight module which is optimised for at least one mechanical or optical criterion; and generating a design for a backlight module based on said generated configuration.