Wavelength Conversion Module Segmentation for Heat Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current laser projector wavelength conversion modules face issues with heat resistance and high manufacturing costs due to the use of undesirable materials like silicone and costly processes such as sintering with glass or ceramic powders, which compromise light emitting efficiency and reliability.
Innovation Solution
A wavelength conversion module with multiple optical regions on a substrate, utilizing different wavelength conversion units with distinct materials and doping materials, such as ceramic or silicon dioxide for heat resistance and silicone for cost-effectiveness, allowing for varied manufacturing processes to optimize cost and performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If silicone is used as the binding material in the wavelength conversion layer, then the manufacturing cost is reduced, but the heat resistance deteriorates and the silicone degrades under high temperature
Solution Approach 1:
The wavelength conversion module is divided into multiple wavelength conversion layers, with each layer using different binding materials suited to its specific wavelength conversion material. This segmentation allows each layer to be optimized independently for both cost and heat resistance requirements.
Solution Approach 2:
Different binding materials are selected for different wavelength conversion layers based on their specific requirements. The first wavelength conversion layer uses a first binding material while the second wavelength conversion layer uses a second binding material, creating local optimization of material properties for each layer's specific function.
2Reliability
If sintering process with glass or ceramic powders is used to manufacture the wavelength conversion layer, then the heat resistance is improved, but the manufacturing cost increases
Solution Approach 1:
The wavelength conversion module is divided into multiple wavelength conversion layers, with each layer using different binding materials suited to its specific wavelength conversion material. This segmentation allows each layer to be optimized independently for both cost and heat resistance requirements.
Solution Approach 2:
The binding material parameters are changed based on the specific wavelength conversion material and its heat resistance requirements. By selecting appropriate binding materials with different thermal properties for different layers, the system achieves optimal balance between heat resistance and manufacturing cost.
3Device complexity
If the same wavelength conversion process is used for all wavelength regions, then the manufacturing process is simplified, but the optical quality and light emitting efficiency deteriorate
Solution Approach 1:
The wavelength conversion module is divided into multiple wavelength conversion layers, with each layer using different binding materials suited to its specific wavelength conversion material. This segmentation allows each layer to be optimized independently for both cost and heat resistance requirements.
Solution Approach 2:
Different binding materials are selected for different wavelength conversion layers based on their specific requirements. The first wavelength conversion layer uses a first binding material while the second wavelength conversion layer uses a second binding material, creating local optimization of material properties for each layer's specific function.
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 reduces manufacturing costs while maintaining good optical quality and reliability, enhancing heat resistance and light emitting efficiency, thus overcoming the limitations of existing technologies.
Implementation Method 1
a first wavelength conversion layer is provided and attached to the first region of the substrate, wherein a first wavelength conversion material and a first doping material are located within the first wavelength conversion layer
Implementation Method 2
a first wavelength conversion unit includes a first wavelength conversion material and a first doping material, and a second wavelength conversion unit includes a second wavelength conversion material and a second doping material
Data Source
AI summary
A wavelength conversion module, a forming method of a wavelength conversion module, and a projection device are provided. The wavelength conversion module includes a substrate and a plurality of wavelength conversion units. The wavelength conversion units are located on the substrate, wherein the wavelength conversion units include a first wavelength conversion unit and a second wavelength conversion unit, the first wavelength conversion unit includes a first wavelength conversion material and a first doping material, the second wavelength conversion unit includes a second wavelength conversion material and a second doping material, the first wavelength conversion material and the second wavelength conversion material are different from each other, and the first doping material and the second doping material are different from each other. By the wavelength conversion units comprising different doping materials, low cost, good heat resistance and efficient light emitting are achieved.