Light-Emitting Package Positioning for Uniform Brightness
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for manufacturing light-emitting apparatuses face challenges in achieving uniform brightness and minimizing spots, while also being cost-effective and efficient in determining the quality of light-emitting modules.
Innovation Solution
A method involving the disposition of a light-emitting package on a substrate, application of energy to emit light, and precise positioning using a light focusing optical system to determine the package's position, followed by the use of a light sensing part to assess the emitted light for quality determination, including the extraction of contour and wavelength analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional manufacturing methods are used for light-emitting apparatuses, then the manufacturing process is simple, but the brightness uniformity is poor and spots are generated
Solution Approach 1:
The patent applies preliminary action by determining the exact position of the light-emitting package before completing the manufacturing process. The position determination is performed early in the process using light emission and sensing, allowing subsequent lens positioning to be precisely adjusted based on this preliminary information, thereby ensuring brightness uniformity and preventing spots.
Solution Approach 2:
The patent implements feedback by using a light sensing part to detect the light emitted from the light-emitting device, determining its actual position, and using this information to adjust the positioning of subsequent components. This closed-loop feedback mechanism ensures that the manufacturing process achieves high brightness uniformity and eliminates spots by continuously monitoring and correcting position deviations.
2Measurement precision
If traditional quality inspection methods are used, then the inspection process is simple, but the quality determination is inaccurate
Solution Approach 1:
The patent replaces traditional mechanical inspection methods with an optical-based position determination system. By using light emission from the light-emitting device and optical sensing to determine position, the system achieves high measurement precision for quality determination without relying on complex mechanical measurement apparatus.
Solution Approach 2:
The light-emitting package itself serves as the light source for position determination by emitting light that is detected by the sensing part. This self-service approach allows the component to provide its own inspection signal, eliminating the need for separate external light sources and simplifying the inspection apparatus while maintaining high measurement accuracy.
3Manufacturing precision
If precise positioning methods are applied, then the brightness uniformity improves, but the manufacturing cost increases
Solution Approach 1:
The light-emitting package serves its dual function as both the light source for illumination and the light source for position determination during inspection. This self-service capability eliminates the need for separate positioning apparatus or external light sources, reducing manufacturing costs while achieving high positioning precision for brightness uniformity.
Solution Approach 2:
The patent applies multi-functionality by using the light-emitting device for both its primary function (providing illumination) and as a signal source for position determination during manufacturing and inspection. This universal use of the light-emitting component eliminates the need for additional specialized equipment, reducing overall manufacturing cost while maintaining precise positioning capability.
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 approach enables the cost-effective and efficient manufacturing of light-emitting apparatuses with improved uniform brightness and reduced spots, while ensuring that the modules meet quality requirements by accurately determining their position and optical characteristics.
Implementation Method 1
The operation of focusing may be performed by a light focusing optical system
Implementation Method 2
applying energy to the light-emitting package to make the light-emitting device emit light
Implementation Method 3
The operation of determining the position may include operations of sensing the light that is emitted from the light-emitting device
Data Source
AI summary
A method of manufacturing a light-emitting apparatus includes disposing a substrate on a support; disposing a light-emitting package including a light-emitting device on the substrate so as to allow the light-emitting package to be positioned at a target position on the substrate; applying energy to the light-emitting package to make the light-emitting device emit light; and analyzing the light that is emitted from the light-emitting device due to the energy, and determining a position where the light-emitting package is actually disposed. Thus, the light-emitting apparatus may be easily and inexpensively manufactured, and may generate a limited number of spots and provide improved uniform brightness.