Integrated Light Guide Plate with Embedded Wavelength Conversion
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Solution Overview
Problem
Conventional light guide systems require separate wavelength converting members and light guide plates, leading to misalignment, increased component count, variability in wavelength conversion efficiency, higher production costs, and complex assembly processes.
Innovation Solution
A light guide member with a receiving space for a wavelength converting material integrated into the light guide plate, allowing the plate to serve as both a light guide and wavelength converter, reducing the need for separate components and simplifying the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wavelength converting member is provided separately from the light guide plate, then the wavelength conversion function can be achieved, but misalignment between the wavelength converting member and the light guide plate occurs and the number of components increases
Solution Approach 1:
The patent combines the wavelength converting member and light guide plate into a single integrated light guide member. The wavelength converting material is embedded within the light guide plate structure, eliminating the need for separate components and ensuring proper alignment between the light source, wavelength converting material, and light guide functions.
2Reliability
If a wavelength converting member is provided separately from the light guide plate, then the wavelength conversion function can be achieved, but alignment between the wavelength converting member and the light guide plate becomes difficult
Solution Approach 1:
By integrating the wavelength converting material directly into the light guide plate structure, the patent eliminates alignment issues between separate components. The wavelength converting material is positioned within the light guide plate at the appropriate location to receive light from the light source and guide the converted light efficiently.
3Volume of moving object
If a thin cylindrical receptacle is used to hold the wavelength converting material, then the structure can be compact, but it is difficult to stably and accurately fill the receptacle with wavelength converting material
Solution Approach 1:
The patent integrates the wavelength converting material directly into the light guide plate structure, eliminating the need for a separate receptacle. The wavelength converting material is embedded within the light guide plate material itself, simplifying the manufacturing process and ensuring stable positioning without requiring precise filling of thin cylindrical receptacles.
4Reliability
If separate wavelength converting member and light guide plate are used, then the wavelength conversion function is achieved, but production cost increases
Solution Approach 1:
The patent integrates the wavelength converting material and light guide plate into a single light guide member, reducing the number of components and assembly steps. This integration simplifies the manufacturing process, reduces material costs, and lowers production expenses while maintaining effective wavelength conversion functionality.
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
This integration stabilizes wavelength conversion efficiency, reduces component count and production costs, and facilitates a more straightforward production process while ensuring efficient color conversion and light emission.
Implementation Method 1
The wavelength converting member is provided between the light source and the light guide plate, and absorbs light emitted from the light source and then produces light having a wavelength different from the wavelength of the light emitted
Data Source
AI summary
To provide a light guide member which has less components than conventional ones and has stable wavelength conversion efficiency; and a light source unit using the light guide member. A light guide member includes: a light guide plate; a receiving space formed in the light guide plate to face a light entrance plane; and a wavelength converting material placed in the receiving space. With the use of the light guide member, the number of components can be reduced and stable wavelength conversion efficiency can be achieved. Further, the production process can be facilitated and the production cost can be reduced.