Parallel LED Lines for Uniform Circular Lighting

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Solution Overview

Problem

Conventional lighting devices with LED elements arranged in zigzag patterns face inefficiencies in light emission and power consumption due to shading effects and uneven light distribution, particularly in circular mounting areas.

Innovation Solution

The lighting device employs light-emitting elements arranged in parallel lines with a central line and peripheral lines, where the number of elements decreases from the central to the peripheral lines, connected in series and parallel configurations to optimize light emission and power usage, preventing shading and ensuring even distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If light-emitting elements are arranged in zigzag patterns to increase density, then the quantity of light-emitting elements increases, but shading effects occur and light distribution becomes uneven

Engineering Contradiction:
Improvenumber of light-emitting elementsVSAvoidlight distribution uniformity
Core Design Contradiction:
Quantity of substanceVSIllumination intensity

Solution Approach 1:

The patent divides the light-emitting elements into multiple independent parallel lines rather than arranging them in a single zigzag pattern. This segmentation allows each line to function independently, preventing shading effects while maintaining high density. The elements are organized into first, second, and third parallel lines with specific connection patterns that ensure uniform light distribution across the mounting area.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from a two-dimensional zigzag arrangement to a multi-dimensional parallel line structure with systematic electrical connections. By introducing multiple parallel lines and establishing specific series-parallel connection patterns between them, the invention creates a more efficient spatial and electrical configuration that eliminates shading while maintaining element density.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Use of energy by stationary object

If light-emitting elements are connected in series to reduce power consumption, then power consumption decreases, but light intensity reduces due to voltage division

Engineering Contradiction:
Improvepower consumptionVSAvoidlight intensity
Core Design Contradiction:
Use of energy by stationary objectVSIllumination intensity

Solution Approach 1:

The patent segments the light-emitting elements into multiple parallel lines, where each line contains elements connected in series. This segmentation allows the system to benefit from series connection power efficiency while maintaining light intensity through the parallel structure. Each parallel line receives appropriate voltage, preventing the voltage division problem that would occur if all elements were connected in a single long series chain.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces connecting electrodes and conductive structures as intermediaries to establish efficient electrical pathways between the parallel lines. These intermediaries ensure that each series-connected group within a parallel line receives adequate voltage while maintaining overall system power efficiency. The connecting structures act as mediators that balance the electrical distribution across the entire array.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of manufacture

If conventional zigzag arrangement is used to simplify structure, then manufacturing complexity is reduced, but light emission efficiency decreases due to shading

Engineering Contradiction:
Improvestructural simplicityVSAvoidlight emission efficiency
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The patent uses segmentation into parallel lines that, while more complex than a single zigzag pattern, follow systematic and repeatable manufacturing patterns. Each parallel line can be independently positioned and connected, allowing for modular manufacturing processes. The segmentation enables efficient light emission by eliminating shading effects, and the systematic arrangement facilitates automated assembly and wiring processes.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from a simple two-dimensional zigzag arrangement to a multi-dimensional parallel line structure with systematic electrical connections. This dimensional change increases light emission efficiency by eliminating shading, while the regular, repeating pattern of parallel lines and connections maintains manufacturing simplicity through standardization and modularity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 enhances light intensity while reducing power consumption and prevents sudden electricity cuts, allowing for efficient light emission and even distribution across the circular mounting area.

Implementation Method 1

a light-emitting diode (LED) element, which is a semiconductor element, is widely used for backlight, lighting, etc.

Methodology Applied
Scientific EffectLight-emitting diode (LED) effect: Light Emitting Diode

Implementation Method 2

light-emitting elements arranged in lines that are extended in parallel with one another between a first electrode and a second electrode

Methodology Applied
Scientific EffectElectroluminescence: Electroluminescence

Data Source

PatentUS9335035B2Lighting device including light-emitting element
Publication Date: 2016.05.10 CITIZEN ELECTRONICS CO LTD
  • US9335035B2 patent drawing
  • US9335035B2 patent drawing
  • US9335035B2 patent drawing

AI summary

In accordance with a first aspect of the present inventive subject matter, a lighting device includes light-emitting elements arranged in lines that are extended in parallel with one another, the light-emitting elements being divided into groups each including the same number of light-emitting elements, a first connecting electrode is disposed adjacent to one end portion of the lines extended, a second connecting electrode is disposed adjacent to another end portion of the lines extended, and the light-emitting elements within each group are electrically connected in series with one another by metallic wires and electrically connected in series to the first connecting electrode and to the second connecting electrode. The groups each include the same number of light-emitting elements that are electrically connected in parallel between the first connecting electrode and the second connecting electrode.