Flexible Organic EL Illuminator with Single Driving Unit

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Solution Overview

Problem

Existing organic electroluminescent illuminating devices lack flexibility and movable surface light-emitting units, resulting in insufficient dramatic or decorative impact.

Innovation Solution

An organic electroluminescent illuminating device featuring a flexible surface light-emitting unit with an organic electroluminescent element on a flexible substrate, connected to a single driving unit, allowing for natural and smooth movement and artistic decorative applications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If the organic electroluminescent element is made flexible to enhance dramatic and decorative impact, then the visual appeal and movement capability are improved, but the structural stability and reliability deteriorate

Engineering Contradiction:
ImproveflexibilityVSAvoidstructural stability
Core Design Contradiction:
ShapeVSReliability

Solution Approach 1:

The patent applies this principle by using a flexible substrate as the base for the organic electroluminescent element, allowing the entire structure to be bent and moved while maintaining functionality. The flexible substrate serves as both the structural support and the enabling medium for dynamic movement, directly resolving the contradiction between flexibility and structural stability.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The patent employs composite material construction by integrating the organic electroluminescent element with the flexible substrate in a unified structure. This composite approach allows the combination of materials with different properties - the substrate provides flexibility while the electroluminescent layer provides light emission and structural integrity, thus maintaining reliability while achieving flexibility.

Inventive Principle:
Principle #40Composite materials

2Device complexity

If a single driving unit is used to control the flexible surface light-emitting unit, then the device complexity is reduced, but the control precision and reliability may worsen

Engineering Contradiction:
Improvenumber of driving unitsVSAvoidcontrol precision
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent merges multiple driving functions into a single driving unit, which integrates control over the flexible surface light-emitting unit. This consolidation reduces the overall number of components and simplifies the system architecture while maintaining effective control through unified management of the flexible element's movement and positioning.

Inventive Principle:
Principle #5Merging (Combining)

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 provides a flexible and movable illuminating solution that enhances dramatic and decorative impact with a three-dimensional appearance and sense of depth, suitable for various room installations.

Implementation Method 1

The organic EL element is driven by current flowing therethrough via the anode and the cathode to emit light

Methodology Applied
Scientific EffectElectroluminescence: Electroluminescence

Data Source

PatentUS9528668B2Organic electroluminescent illuminating device
Publication Date: 2016.12.27 MERCK PATENT GMBH
  • US9528668B2 patent drawing
  • US9528668B2 patent drawing
  • US9528668B2 patent drawing

AI summary

An organic electroluminescent illuminating device is shown. The device includes, at least on flexible surface light-emitting unit and a single driving unit. The flexible surface light-emitting unit has a flexible substrate and at least one organic electroluminescent element on the flexible substrate. The single driving unit drives the flexible surface light-emitting unit. At least a portion of the flexible surface light-emitting unit is connected to the driving unit.