Light Emitting Device Electrode Segmentation for Thermal Management
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Solution Overview
Problem
Current light emitting devices face challenges in heat dissipation and electrical isolation between the cathode and anode, which affect their efficiency and reliability.
Innovation Solution
The design includes a light emitting structure with a first and second conductive-type semiconductor layer, electrodes, and conductive support members under the light emitting structure, along with insulating and protective layers, to enhance heat dissipation and electrical isolation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional electrode configuration is used, then device structure is simple, but heat dissipation efficiency is poor
Solution Approach 1:
The patent divides the electrode configuration into multiple segments: first electrode connected to the second conductive-type semiconductor layer, second electrode connected to the first conductive-type semiconductor layer, and connection electrode connecting the second electrode to the first conductive-type semiconductor layer. This segmentation creates multiple heat dissipation pathways while maintaining structural organization.
Solution Approach 2:
The patent introduces a multi-dimensional electrode arrangement with electrodes disposed at different locations and connections extending in multiple directions. The connection electrode bridges different regions, creating a three-dimensional heat dissipation network that improves thermal management without excessive complexity.
2Reliability
If conventional electrode configuration is used, then device structure is simple, but electrical isolation between cathode and anode is insufficient
Solution Approach 1:
The connection electrode serves as an intermediary element that provides electrical isolation between the cathode and anode while maintaining necessary electrical connections. The insulating layer acts as a mediator to prevent unwanted electrical interaction between adjacent electrodes, ensuring proper electrical isolation.
Solution Approach 2:
The patent applies different properties to different regions: insulating layers are placed specifically where electrical isolation is needed between electrodes, while conductive pathways are maintained where electrical connection is required. This localized application of different material properties achieves effective electrical isolation without unnecessary complexity throughout the entire device.
Data Source
AI summary
The light-emitting element provides: a light-emitting structure, which comprises a first conductive semiconductor layer, an active layer under the first conductive semiconductor layer, and a second conductive semiconductor layer under the active layer. A first electrode is disposed under a first region under the light-emitting structure and electrically connected to the second conductive semiconductor layer; a second electrode disposed under a second region under the light-emitting structure and electrically connected to the first conductive semiconductor layer. A connection electrode is connected the second electrode with the first conductive semiconductor layer. An insulating layer is disposed between the first and second electrodes; a first protective layer is disposed around the lower circumference of the light-emitting structure; and a second protective layer is disposed between the insulating layer and the light-emitting structure.