Flexible LED Module with Reflective Layer for Light Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional lighting solutions like incandescent bulb lamps and fluorescent lamps have short lifespans and inadequate light distribution characteristics, necessitating the development of a more efficient and flexible lighting solution.
Innovation Solution
A filament-type LED module with a flexible substrate, circuit pattern, insulating reflective layer, and wavelength conversion layer, which improves luminous flux and adjusts light distribution by preventing light absorption and enhancing backward light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If conventional incandescent bulb lamps or fluorescent lamps are used, then lighting function is provided, but lifespan is relatively short and requires frequent replacement
Solution Approach 1:
The patent replaces conventional incandescent bulb lamps or fluorescent lamps with an LED module that uses light emitting diodes. This substitution of the lighting mechanism provides a semi-permanent lifespan and greater resistance to impacts, eliminating the need for frequent replacements while maintaining the lighting function.
2Illumination intensity
If conventional lighting lamps are used, then lighting is provided, but light distribution characteristics are inadequate
Solution Approach 1:
The patent applies an insulating reflective layer to specific regions of the flexible substrate, particularly in regions not occupied by LED chips or circuit patterns. This localized application of reflective material enhances backward light emission and adjusts light distribution characteristics without requiring complete redesign of the entire lighting structure.
Solution Approach 2:
The patent utilizes the flexible substrate to enable the LED module to be bent or curved, allowing light to be distributed in multiple directions including backward emission. This dimensional flexibility transforms the traditional unidirectional light distribution into multi-directional illumination, improving light distribution characteristics.
3Adaptability or versatility
If LED modules are designed with rigid structures, then manufacturing is simplified, but light distribution characteristics and flexibility are limited
Solution Approach 1:
The patent employs a flexible substrate as the foundation of the LED module, allowing the entire structure to be bent or curved without breaking. This flexibility enables the module to adapt to various installation configurations and improves light distribution by enabling backward light emission through the curved structure, while maintaining a relatively simple module design.
4Power
If circuit patterns are exposed on the substrate surface, then electrical connection is ensured, but light absorption occurs and luminous flux is reduced
Solution Approach 1:
The patent introduces an insulating reflective layer as an intermediary substance between the circuit patterns and the surrounding environment. This layer serves dual functions: it reflects light that would otherwise be absorbed by the circuit patterns, thereby increasing luminous flux, and it provides electrical insulation to ensure safe operation while maintaining electrical connections through the flexible substrate.
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 enhances luminous flux and adjusts light distribution characteristics, providing a more efficient and durable lighting solution with improved light emission in both forward and backward directions.
Implementation Method 1
a wavelength conversion layer covering the plurality of LED chips and surrounding the flexible substrate in a cross-sectional view
Implementation Method 2
an insulating reflective layer disposed on the first surface of the flexible substrate, and covering a portion of the circuit pattern
Data Source
AI summary
A light emitting diode (LED) module includes: a flexible substrate having a first surface on which a circuit pattern is disposed, and a second surface opposite the first surface; a plurality of light emitting diode (LED) chips mounted on the first surface of the flexible substrate, and electrically connected to the circuit pattern; an insulating reflective layer disposed on the first surface of the flexible substrate, and covering a portion of the circuit pattern; first and second connection terminals disposed at both ends of the flexible substrate, and connected to the circuit pattern; and a wavelength conversion layer covering the plurality of LED chips and surrounding the flexible substrate in a cross-sectional view.