Optical Device Segmented Conductive Layers for Reflector Mounting
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Solution Overview
Problem
Conventional semiconductor light-emitting devices face challenges in efficiently integrating optical elements with conductive layers and reflectors, leading to issues with light emission and reflection efficiency due to complex wiring patterns and material compatibility.
Innovation Solution
The optical device design features a substrate with obverse-surface and reverse-surface conductive layers, a conductive part extending through the substrate, and a reflector with an inner surface surrounding the optical element, allowing for secure mounting and improved light reflection without overlapping with conductive regions, thus enhancing brightness and reducing the risk of short circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wiring pattern is formed on the substrate to connect the light-emitting element, then electrical connection is achieved, but the device complexity increases and light emission efficiency decreases
Solution Approach 1:
The conductive layer is segmented into multiple regions (first conductive region for mounting the light-emitting element, second conductive region for mounting the reflector, third conductive region for electrical connection). This segmentation allows each region to serve its specific function independently, simplifying the overall wiring pattern while maintaining reliable electrical connections.
Solution Approach 2:
Different regions of the conductive layer are assigned different functions based on their local requirements. The first conductive region provides mechanical support and electrical connection for the light-emitting element, the second conductive region provides mounting for the reflector, and the third conductive region provides electrical connection to external circuits. This local differentiation reduces overall complexity.
2Illumination intensity
If the reflector is disposed close to the light-emitting element to improve light reflection efficiency, then optical performance improves, but the risk of short circuit increases
Solution Approach 1:
The second conductive region acts as an intermediary between the first conductive region (mounting for light-emitting element) and the third conductive region (electrical connection). The reflector is mounted on this intermediate region, which is spatially separated from the light-emitting element mounting region. This intermediary structure allows the reflector to be positioned close to the light-emitting element for optimal optical performance while maintaining sufficient electrical isolation to prevent short circuits.
3Ease of manufacture
If conventional wiring patterns are used to mount the light-emitting element and reflector, then manufacturing is simplified, but light emission efficiency decreases
Solution Approach 1:
The conductive layer serves multiple functions simultaneously: it provides mechanical mounting for both the light-emitting element (first conductive region) and the reflector (second conductive region), and provides electrical connection paths (third conductive region). This multi-functional design eliminates the need for separate wiring patterns and mounting structures, simplifying manufacturing while optimizing light emission efficiency through proper spatial arrangement.
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 configuration ensures secure mounting of the reflector, enhances light reflection efficiency, and minimizes the risk of short circuits, resulting in improved optical performance and reliability of the semiconductor light-emitting devices.
Implementation Method 1
The reflector is disposed on the substrate and has an inner surface that surrounds the optical element as viewed in the thickness direction
Data Source
AI summary
An example of an optical device of the present disclosure includes a substrate, an obverse-surface conductive layer, a reverse-surface conductive layer, a first conductive part, an optical element and a reflector. The first conductive part extends through the substrate and overlaps with a first obverse-surface conducting region of the overse-surface conductive layer and the reverse-surface conductive layer as viewed in a thickness direction of the substrate. The reflector has an inner surface that surrounds the optical element as viewed in the thickness direction. The optical element is located on first obverse-surface conducting region, and the second obverse-surface conducting region is located between the first obverse-surface conducting region and the inner surface of the reflector as viewed in the thickness direction. A second obverse-surface conducting region of the overse-surface conductive layer is spaced apart from the inner surface of the reflector as viewed in the thickness direction.