Light Source Module With Bidirectional Optical Microstructures
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Solution Overview
Problem
Decorative light panels struggle to present three-dimensional images effectively due to insufficient brightness and image size limitations caused by the increased number of optical microstructures required for depth perception.
Innovation Solution
A light source module with a light guide plate and multiple light sources, where optical microstructures on the bottom surface of the plate are strategically positioned to receive light beams, allowing for overlapping light emitting regions to enhance image brightness and uniformity while maintaining a large-size display capability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of optical microstructures is increased to present three-dimensional images, then the depth perception capability is improved, but the overall brightness and image size are reduced
Solution Approach 1:
The patent introduces a second light source disposed on the opposite side of the light guide plate, utilizing the third dimension (depth/thickness) of the light guide plate structure. This allows light to enter from both front and back surfaces, creating overlapping light emitting regions that enhance brightness without requiring additional lateral space or increasing the number of optical microstructures on a single surface.
2Measurement precision
If the number of optical microstructures is increased to present three-dimensional images, then the depth perception capability is improved, but the image size is limited
Solution Approach 1:
By utilizing the thickness dimension of the light guide plate and positioning light sources on opposite surfaces, the patent enables the light to traverse through the plate and create overlapping emission regions. This dimensional approach allows the light to cover a larger area without increasing the lateral density of optical microstructures, thus maintaining large image size while achieving three-dimensional display capability.
3Illumination intensity
If multiple light sources are added to enhance brightness, then the overall brightness is improved, but the device complexity increases
Solution Approach 1:
The light guide plate serves multiple functions simultaneously: it acts as a structural support, a light transmission medium, and a platform for mounting multiple light sources on opposite surfaces. The optical microstructures on the bottom surface serve dual purposes by reflecting light from both the first and second light sources. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity despite adding multiple light sources.
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 improves overall image brightness and uniformity, enabling effective display of large-size three-dimensional images with enhanced visual experience by optimizing the arrangement of light sources and optical microstructures on the light guide plate.
Implementation Method 1
optical microstructures are formed on a bottom surface of a light guide plate, and the position of each optical microstructure and the angle of its reflective surface are configured according to the effect required to be presented
Implementation Method 2
Light emitted by a light source, after being incident from a surface (a light incident surface) of the light guide plate, may be reflected by the optical microstructures and then transmitted toward a light emitting surface of the light guide plate to be emitted
Data Source
AI summary
A light source module including a light guide plate, a first light source and a plurality of first optical microstructures is provided. The light guide plate has a first incident surface and a bottom surface connected to the first incident surface. The first light source is disposed on a side of the first incident surface of the light guide plate. The first optical microstructures are disposed on the bottom surface. Each of the first optical microstructures has a first light receiving surface disposed toward the first light source. Each of the first light receiving surfaces of a first portion of the first optical microstructures has a first edge at a junction with the bottom surface, and a perpendicular bisector of the first edge passes through the first light source.