LED Filament Matrix Linear Dual Arrangement
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Solution Overview
Problem
Current LED filaments lack an appealing appearance and are costly to produce, with inefficient assembly processes.
Innovation Solution
A light emitting device comprising a carrier with LEDs arranged in a matrix and linear configurations, where the matrix LEDs provide point source light and the linear LEDs offer line emission, allowing for improved lighting and reduced production costs through cost-effective assembly and color temperature tunability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If LEDs are arranged in a single linear configuration (traditional LED filament), then the structure is simple and production is easier, but the appearance is less appealing and lighting quality is insufficient
Solution Approach 1:
The LED array is segmented into two distinct configurations: a linear arrangement (first plurality of LEDs) and a matrix arrangement (second plurality of LEDs). This segmentation allows each configuration to contribute differently to the overall lighting performance and appearance, with the linear arrangement providing traditional filament-like structure and the matrix arrangement enhancing visual appeal and light distribution.
Solution Approach 2:
The patent transitions from a one-dimensional linear LED arrangement to a two-dimensional structure by incorporating a matrix arrangement of LEDs. This dimensional expansion adds visual complexity and improves light emission patterns, creating a more appealing appearance while maintaining the linear configuration for structural simplicity.
2Reliability
If multiple separate carriers are used for different LED arrangements, then each LED configuration can be optimized independently, but production cost increases and assembly becomes more complex
Solution Approach 1:
The patent merges two previously separate LED configurations (linear and matrix arrangements) onto a single carrier substrate. This integration maintains the independent optimization benefits of each LED arrangement while simplifying manufacturing processes, reducing production costs, and eliminating the need for complex assembly of multiple separate components.
Solution Approach 2:
The single carrier is designed to perform multiple functions: it supports both the linear LED arrangement and the matrix LED arrangement simultaneously. This multi-functional carrier consolidates what would traditionally require separate carriers, thereby reducing production complexity and cost while maintaining reliable lighting performance.
3Illumination intensity
If LEDs are spaced closely together to provide continuous light emission, then lighting quality improves, but production precision requirements increase and assembly difficulty increases
Solution Approach 1:
The patent applies different spacing strategies to different LED configurations: the linear arrangement uses closer spacing to provide continuous light emission and improve lighting quality, while the matrix arrangement can use larger spacing. This local quality approach allows optimal lighting performance in critical areas without uniformly increasing precision requirements across the entire device.
Solution Approach 2:
The patent varies the spacing parameter across different LED configurations rather than applying a uniform spacing standard. By changing the spacing parameter locally according to functional requirements, the design achieves high lighting quality where needed while maintaining manageable manufacturing precision requirements overall.
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 device achieves enhanced lighting and appearance with improved color mixing and tunability, while reducing production costs by integrating LEDs in a dual arrangement on a single carrier.
Implementation Method 1
a first plurality of LEDs (110) arranged in a matrix arrangement
Data Source
AI summary
The present invention relates to a light emitting device (100). The light emitting device comprising a carrier (130). The carrier comprising a first plurality of LEDs (110) arranged in a matrix arrangement, the matrix arrangement having a plurality of LED columns (112, 114, 116) and a plurality of LED rows (113, 115, 117), wherein LED columns of the plurality of LED columns (112, 114, 116) are spaced apart from each other with a first spacing (S1) and LED rows of the plurality of LED rows (113, 115, 117) are spaced apart from each other with a second spacing (S2) and, a second plurality of LEDs (120) arranged in a linear arrangement, the linear arrangement having a length (L) larger than a width (W), wherein LEDs of the second plurality of LEDs (120) are spaced apart from each other with a third spacing (S3), the third spacing (S3) being smaller than the first and the second spacings (S1, S2) and wherein the second plurality of LEDs (120) are arranged in between LEDs of the first plurality of LEDs (110) and within the first and the second spacings (S1, S2).