Light Guide Plate Microstructures for Double-Sided Illumination
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Solution Overview
Problem
Current lighting decoration panels primarily emit light from one side, limiting their ability to achieve double-sided display or illumination effects.
Innovation Solution
A lighting decoration module with two types of optical microstructures on opposite light exit surfaces, each angled between 40 to 60 degrees relative to the light exit surface, allowing for double-sided display, or angled between 15 to 35 degrees and 40 to 60 degrees for single-sided display and illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If optical microstructures are formed on the bottom surface of the LGP for single-sided display, then the display effect on one side is improved, but the light emission from the other side is insufficient
Solution Approach 1:
The invention divides the light guide plate into two distinct functional surfaces: a first light exit surface with first optical microstructures for pattern display, and a second light exit surface with second optical microstructures for illumination. This segmentation allows each surface to be optimized independently, enabling both sides to emit sufficient light for their respective functions simultaneously
Solution Approach 2:
Different optical microstructure designs are applied to different locations of the LGP. The first optical microstructures on the first light exit surface have specific geometric characteristics optimized for pattern visibility, while the second optical microstructures on the second light exit surface have different characteristics optimized for illumination intensity, creating local quality variations to achieve dual functionality
2Measurement precision
If the optical microstructures are designed for optimal pattern display, then the display clarity is improved, but the illumination effectiveness is reduced
Solution Approach 1:
The invention separates the display function and illumination function into two distinct optical microstructure systems on opposite surfaces of the LGP. This allows each microstructure type to be independently optimized for its specific function without compromising the other, resolving the trade-off between display clarity and illumination effectiveness
Solution Approach 2:
The invention transitions from single-sided to double-sided functionality by utilizing the third dimension (the opposite surface of the LGP). By forming optical microstructures on both the first and second light exit surfaces, the system achieves dual functionality in spatial separation, allowing independent optimization of display and illumination characteristics
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
Enables double-sided pattern display and illumination, enhancing visual experience by allowing clear pattern viewing and improved illumination on both sides of the panel.
Implementation Method 1
After light emitted by a light source is incident from a side surface (a light incident surface) of the LGP, the light may be reflected by the optical microstructures, transmitted toward a light exit surface of the LGP, and then emitted
Data Source
AI summary
A lighting decoration module includes an LGP, at least one light source, and first and second optical microstructures. The LGP has at least one light incident surface and first and second light exit surfaces that are opposite to each other and connect the light incident surface. The light source corresponds to the light incident surface. The first optical microstructures are disposed on the first light exit surface and each has a first surface facing the light source. A first angle between the first surface and the first light exit surface is within a range from 40-60 degrees or 15-35 degrees. The second optical microstructures are disposed on the second light exit surface and each has a second surface facing the light source. A second angle between the second surface and the second light exit surface is within a range from 40-60 degrees.