Light Guide Plate With Non-Parallel Reflective Surfaces
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Solution Overview
Problem
Decorative lighting panels with optical microstructures on light guide plates suffer from low light utilization efficiency and increased manufacturing complexity and cost due to the need for numerous optical microstructures to achieve complex effects.
Innovation Solution
A light source module featuring a light guide plate with optical microstructures having non-parallel reflective surfaces, which are designed to reflect light from multiple light emitting elements in a coordinated manner, improving light utilization efficiency and simplifying the manufacturing process by reducing the number of required microstructures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple optical microstructures are disposed on the light guide plate to achieve complex decorative effects, then the decorative effect is improved, but the manufacturing complexity and cost increase
Solution Approach 1:
Each optical microstructure is designed with multiple non-parallel reflective surfaces that can reflect light from different light emitting elements at different angles. This allows a single optical microstructure to perform multiple reflective functions that would otherwise require multiple separate microstructures, thereby reducing manufacturing complexity while maintaining decorative versatility
Solution Approach 2:
The reflective surfaces within each optical microstructure are designed with different orientations and angles rather than being parallel. By changing the angular parameters of the reflective surfaces, the system can achieve complex light reflection patterns and decorative effects using fewer microstructures, thus reducing manufacturing difficulty and cost
2Adaptability or versatility
If multiple optical microstructures are disposed on the light guide plate to achieve complex decorative effects, then the decorative effect is improved, but the manufacturing cost increases
Solution Approach 1:
Each optical microstructure serves multiple functions by incorporating non-parallel reflective surfaces that can handle light from multiple light emitting elements. This multi-functionality reduces the total number of microstructures needed, thereby lowering manufacturing costs while maintaining decorative effectiveness
Solution Approach 2:
The patent combines multiple reflective functions into single optical microstructures. Instead of having separate microstructures for each reflection path, the design merges multiple reflective surfaces with different orientations into one integrated microstructure, reducing the overall quantity of components and associated manufacturing costs
3Adaptability or versatility
If light is reflected in the light guide plate to achieve decorative patterns, then the decorative effect is achieved, but the light utilization efficiency is low
Solution Approach 1:
The non-parallel reflective surfaces are specifically angled to optimize light reflection paths. By carefully adjusting the angular parameters of each reflective surface, the design maximizes the amount of light that can be effectively reflected to the front surface, improving light utilization efficiency while maintaining decorative patterns
Solution Approach 2:
Different reflective surfaces within the optical microstructures are designed with locally optimized qualities and orientations. Each reflective surface is tailored to specific light reflection needs, ensuring that light from different light emitting elements is efficiently directed toward the front surface, thereby improving overall light utilization efficiency
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances light utilization efficiency and reduces manufacturing complexity by allowing a small number of optical microstructures to provide sufficient reflective surfaces, improving the transparency and effectiveness of the light guide plate in projecting patterns and texts.
Implementation Method 1
Each of the optical microstructures includes at least two sections connected to each other, each section having a reflective surface. The light emitting elements are disposed on the light incident surface, and light emitted by each of the light emitting elements is reflected by at least some of the reflective surfaces and transmitted to the light emitting surface.
Data Source
AI summary
The invention provides a light source module including a light guide plate and light emitting elements. The light guide plate includes a main plate body and a plurality of optical microstructures. The main plate body has a light emitting surface and a back surface opposite to each other, and a light incident surface connected therebetween. The optical microstructures are formed on the back surface. Each optical microstructure includes at least two sections connected to each other, each section having a reflective surface. The light emitting elements are disposed on the light incident surface, and light emitted by each of the light emitting elements is reflected by at least some of the reflective surfaces and transmitted to the light emitting surface. In any optical microstructure, the reflective surfaces are not parallel to each other.