LED Illumination Module with Staggered Wiring for Low Voltage Operation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional UV illumination modules using LED devices require high operating voltages due to the staggered arrangement of LED devices, limiting the design flexibility for creepage distance and safety standards, and increasing the number of LEDs in parallel is hindered by physical constraints such as the need for bonding areas between devices.
Innovation Solution
A light illumination module with a substrate featuring alternating trapezoidal or rectangular protrusion portions along wiring patterns allows for a staggered arrangement of LED devices, enabling them to be connected in parallel and operated at lower voltages by connecting electrodes to these protrusions and stripe-shaped portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If LED devices are arranged in a staggered configuration to eliminate gaps during movement, then illumination coverage is improved, but the number of series connections increases requiring higher operating voltage
Solution Approach 1:
The patent transitions from a single-row linear arrangement to a multi-row two-dimensional staggered arrangement. By distributing LED devices across multiple rows with alternating positions, the system achieves continuous illumination coverage while creating parallel connection paths that reduce the number of series connections required, thereby lowering operating voltage requirements.
Solution Approach 2:
The patent divides the LED array into multiple independent rows that can be connected in parallel. Each row contains fewer LED devices, and by connecting these rows in parallel rather than in a single long series chain, the overall operating voltage is reduced while maintaining comprehensive illumination coverage through the staggered spatial arrangement.
2Power
If the number of LED devices connected in parallel is increased to reduce operating voltage, then operating voltage is reduced, but physical space for bonding areas becomes insufficient
Solution Approach 1:
The patent resolves the space constraint by transitioning from a one-dimensional linear arrangement to a two-dimensional multi-row configuration. This spatial reorganization allows multiple bonding areas to be distributed across different rows and positions on the substrate, providing sufficient total bonding area for increased parallel LED connections without requiring a proportional increase in linear substrate length.
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 enables the operation of LED devices at significantly lower voltages, reducing the overall operating voltage by up to 50% compared to conventional designs while maintaining a staggered arrangement, thus enhancing design flexibility and safety.
Implementation Method 1
a plurality of light emitting diode (LED) devices 13 disposed on the wiring patterns 18 to emit light in a direction perpendicular to a surface of the substrate 11
Data Source
AI summary
The light illumination module includes a substrate, a plurality of wiring patterns formed in parallel on the substrate, and a plurality of LED devices disposed on the wiring patterns. Each wiring pattern has a stripe-shaped portion extending in a first direction, a first protrusion portion protruding in a second direction, and a second protrusion portion protruding in an opposite direction. The first and second protrusion portions are formed in an alternating manner along the first direction, and the LED devices are disposed on the first protrusion portion and the stripe-shaped portion at a location corresponding to the second protrusion portion. A first electrode of each LED device is electrically connected to the first protrusion portion or the stripe-shaped portion immediately below, and a second electrode of each LED device is electrically connected to the stripe-shaped portion or the second protrusion portion of an adjacent wiring pattern with a wire.