LED Array Series Circuit Power Distribution
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Solution Overview
Problem
Existing light emitting diode (LED) systems face inefficiencies in power supply due to irregular voltage distribution when a smaller number of LED packages are used on a printed circuit board, leading to potential light efficiency deterioration.
Innovation Solution
A light emitting device array configuration with a printed circuit board featuring a series circuit pattern of electrode patterns, where a smaller number of LED packages are connected by power supply lines that form a series circuit, ensuring efficient power distribution and maintaining light efficiency by keeping resistance values within optimal ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a reduced number of LED packages are disposed on electrode patterns, then device complexity is reduced, but power distribution efficiency deteriorates and voltage drops occur
Solution Approach 1:
The patent introduces a compensatory electrode pattern as an intermediary element that bridges the gap caused by reduced LED package density. This compensatory pattern maintains the electrical continuity and power distribution efficiency that would otherwise be compromised by having fewer LED packages on the substrate.
2Quantity of substance
If a reduced number of LED packages are disposed on electrode patterns, then manufacturing cost is reduced, but light efficiency deteriorates due to irregular power distribution
Solution Approach 1:
The patent modifies the electrical parameters of the circuit by introducing compensatory electrode patterns with specific resistance values that are calculated to maintain optimal current distribution. This parameter adjustment ensures that even with fewer LED packages, the power distribution remains efficient and light output is maximized.
3Ease of manufacture
If regular electrode patterns are used with reduced LED packages, then manufacturing simplicity is maintained, but power supply efficiency deteriorates
Solution Approach 1:
The patent segments the electrode pattern system into regular patterns and compensatory patterns. The regular patterns maintain manufacturing simplicity and consistency, while the compensatory patterns are strategically placed to address power distribution inefficiencies, achieving a balance between ease of manufacture and power supply efficiency.
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 efficient power supply to LED packages, maintaining light efficiency and preventing voltage drops, even with a reduced number of LED packages, thereby enhancing the overall performance of the LED system.
Implementation Method 1
Light Emitting Diodes (LEDs), as a representative example of light emitting elements, are semiconductor elements functioning to convert electric energy into light
Implementation Method 2
power supply lines with controlled resistance values to ensure efficient power distribution
Data Source
AI summary
A light emitting device array is provided comprising a printed circuit board on which a plurality of electrode patterns having the same width is formed, a light emitting device package disposed on a predetermined number of electrode patterns and a power supply line disposed on at least one of the remaining electrode pattern except for the predetermined number of electrode patterns.