OLED Lighting Device with 3D Mounting Face for Vehicle Signatures

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Solution Overview

Problem

Current lighting and signaling devices for motor vehicles face complexity and the need for aesthetic differentiation while maintaining reliability and compactness, particularly in implementing three-dimensional emission surfaces for a unique visual signature.

Innovation Solution

A luminous device featuring a support with a three-dimensional mounting face and a flexible organic light-emitting diode (OLED) that is securely mounted without play, capable of emitting light in a specific direction, and a control module that enables a scrolling direction indicator function through sequential activation of multiple OLED modules.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If a three-dimensional emission surface is implemented to create a unique visual signature, then aesthetic character is improved, but device complexity increases

Engineering Contradiction:
Improveemission surface geometryVSAvoiddevice complexity
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The lighting device is divided into multiple independent light-emitting modules, each with its own support structure. This segmentation allows complex three-dimensional emission surfaces to be constructed from simpler modular components, reducing overall device complexity while maintaining aesthetic character.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support structure serves multiple functions: it provides mechanical support for the organic light-emitting diode, positions the emission surface in three-dimensional space, and enables various emission geometries. This multi-functionality reduces the need for separate components, thereby reducing device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple functions are integrated into the lighting device, then versatility is improved, but device complexity increases

Engineering Contradiction:
Improvefunctional versatilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The lighting device integrates multiple functions including illumination, direction indication, and aesthetic signaling within a single modular structure. The organic light-emitting diode and support structure are designed to accommodate various operational modes, providing versatility without requiring separate dedicated components for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The device incorporates controllable light emission patterns including sequential activation of modules for scrolling direction indicators. This dynamic control capability allows a single device structure to perform multiple functions by varying the activation sequence and intensity of individual modules.

Inventive Principle:
Principle #15Dynamics

3Manufacturing precision

If a flexible organic light-emitting diode is mounted on a three-dimensional surface without play, then manufacturing precision is improved, but ease of manufacture deteriorates

Engineering Contradiction:
Improvemounting precisionVSAvoidease of manufacture
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The flexible organic light-emitting diode is divided into multiple modular segments that can be independently mounted on the three-dimensional support surface. This segmentation simplifies the mounting process by allowing each module to be positioned and secured separately, improving precision while maintaining ease of manufacture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The use of flexible organic light-emitting diodes with thin-film construction allows these components to conform to three-dimensional support surfaces. The flexibility of these thin-film structures enables them to adapt to complex geometries without requiring precise pre-forming, thereby improving mounting precision while simplifying manufacturing.

Inventive Principle:
Principle #30Flexible shells and thin films

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 provides an aesthetically distinct, reliable, and compact lighting solution for motor vehicles, enhancing the visual signature while ensuring efficient light emission and compliance with regulatory standards through sequential and progressive OLED activation.

Implementation Method 1

an organic light emitting diode mounted on the mounting face of the carrier... capable of emitting light via its light-emitting face in a general direction substantially parallel to a normal of the mounting face

Methodology Applied
Scientific EffectElectroluminescence: Electroluminescence

Data Source

PatentEP3141812B1Lighting device with organic light emitting diode
Publication Date: 2019.11.13 VALEO VISION SA
  • EP3141812B1 patent drawingFigure 1~2F
  • EP3141812B1 patent drawingFigure 3~4
  • EP3141812B1 patent drawingFigure 5~6

AI summary

The invention relates to a lighting device (1), for a motor vehicle, the lighting device comprising at least one support (11) including a mounting face (111) extending in three directions (X,Y,Z) perpendicular to each other, and an organic light-emitting diode (2) mounted on the mounting face of the support.