Light-Conducting Layer for Flexible Image Display Control

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Solution Overview

Problem

Existing image display devices with individually controllable luminous elements face limitations in flexibility of positioning and complexity of structure, requiring specific distances for light transmission and having inflexible designs that are costly and difficult to modify.

Innovation Solution

A device with a carrier body comprising a first and second electrically conductive layer and a light-conducting layer for transmitting light signals, allowing for flexible positioning of luminous elements and enabling reliable operation under mechanical loads, with control units connected via light-detecting and electrical connections for efficient control and address information transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If LEDs are arranged at specific distances to ensure clear light transmission, then light transmission reliability is improved, but positioning flexibility is worsened

Engineering Contradiction:
Improvelight transmission reliabilityVSAvoidpositioning flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent replaces electrical signal transmission with optical signal transmission through the light-conducting layer. Control units read light signals optically from the layer, eliminating the need for precise electrical connections while maintaining reliable control of luminous bodies at flexible positions.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The light-conducting layer serves as an intermediary that carries control signals optically between the control unit and luminous bodies. This intermediary enables signal transmission without direct electrical contact, allowing flexible positioning while ensuring reliable signal delivery.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a complex structure with multiple layers is used for reliable operation, then operational reliability is improved, but device complexity is worsened

Engineering Contradiction:
Improveoperational reliabilityVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The light-conducting layer performs multiple functions simultaneously: it conducts light signals for control, provides electrical insulation between conductive layers, and supports the overall structure. This multi-functionality reduces the need for separate components, simplifying the device structure while maintaining reliability.

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

Solution Approach 2:

The patent merges the insulation function and light conduction function into a single light-conducting layer. By combining these functions in one component rather than using separate layers, the overall structural complexity is reduced while operational reliability is maintained.

Inventive Principle:
Principle #5Merging (Combining)

3Manufacturing precision

If fixed positioning of luminous bodies is used, then manufacturing precision is improved, but adaptability is worsened

Engineering Contradiction:
Improvepositioning precisionVSAvoidshape adaptability
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The patent employs a flexible light-conducting layer that can be shaped and bent to match different surface geometries. This flexible film structure allows the device to adapt to various shapes and configurations while maintaining precise control over luminous body positions through the optical signal transmission mechanism.

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

Enables flexible and cost-effective production of image display devices that can be easily shaped and resized, supporting high data rates and refresh rates, and allowing for use on uneven surfaces with enhanced mechanical resilience and adaptability.

Implementation Method 1

a light-conducting layer arranged between the first and second electrically conductive layer for conducting light signals

Methodology Applied
Scientific EffectLight transmission: Light

Implementation Method 2

the control units via light-detecting or light signals receiving connections are connected to the light-guiding layer

Methodology Applied
Scientific EffectLight detection: Photoelectric Effect

Data Source

PatentEP3368822B1Image presentation device
Publication Date: 2019.08.28 TFFI GMBH & CO KG
  • EP3368822B1 patent drawingFigure 1
  • EP3368822B1 patent drawingFigure 2~3

AI summary

The invention relates to a device for image representation comprising a carrier body, on which are arranged individually driveable luminous bodies connected respectively to a drive unit, wherein the carrier body has a first electrically conductive layer facing the luminous bodies, a second electrically conductive layer facing away from the luminous bodies, and a light-guiding layer for guiding light signals, said light-guiding layer being arranged between the first electrically conductive layer and the second electrically conductive layer, wherein the drive units are connected to the light-guiding layer via light-detecting connections, wherein first electrical connections for connecting the drive units to the first electrically conductive layer and second electrical connections for connecting the drive units to the second electrically conductive layer are provided, wherein the drive units are designed for driving the luminous bodies depending on light signals fed into the light-guiding layer.