Lighting Structure With Layered Light Guides for Dense Information Display

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Solution Overview

Problem

Conventional automotive in-vehicle decorative lighting components struggle to display comprehensive and diverse information within limited space due to the use of locally transmitting and non-transmitting areas, limiting the ability to create crystal-like transparent decorations that are visible only when activated and dimly visible or invisible when deactivated.

Innovation Solution

A lighting structure incorporating a light-emitting unit, circuit substrate, and light guide that utilizes optically reflective information structures on the light guide surfaces to display information with a luminous effect when activated, and a semi-hidden effect when deactivated, allowing for multiple layers of information display and energy efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If conventional locally transmitting and non-transmitting areas are used in decorative lighting components, then the structure can provide basic lighting function, but the ability to display comprehensive and diverse information within limited space is limited

Engineering Contradiction:
Improveinformation display capabilityVSAvoiddisplay area
Core Design Contradiction:
Loss of informationVSArea of stationary object

Solution Approach 1:

The patent applies dimensionality change by transitioning from a single-layer lighting structure to a multi-layer stacked configuration. Multiple light-emitting units (first, second, third light-emitting units) are arranged in different layers, each capable of displaying different information. This vertical stacking enables comprehensive information display within limited horizontal space by utilizing the third dimension (depth/layering).

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

Solution Approach 2:

The lighting component is segmented into multiple independent light-emitting units (first light-emitting unit, second light-emitting unit, third light-emitting unit), each capable of independent operation and information display. This segmentation allows different regions to display different information simultaneously, increasing the overall information density within the limited display area.

Inventive Principle:
Principle #1Segmentation

2Use of energy by moving object

If traditional decorative lighting structures are used, then manufacturing is straightforward, but energy consumption is higher and environmental friendliness is reduced

Engineering Contradiction:
Improveenergy consumptionVSAvoidmanufacturing simplicity
Core Design Contradiction:
Use of energy by moving objectVSEase of manufacture

Solution Approach 1:

The patent implements periodic action through independent control of multiple light-emitting units. Different light-emitting units can be activated selectively based on information display requirements, rather than continuous operation of the entire lighting component. This periodic activation pattern reduces overall energy consumption while maintaining manufacturing simplicity through standardized LED module integration.

Inventive Principle:
Principle #19Periodic action

3Shape

If crystal-like transparent decorations are created with visible only when activated, then aesthetics are improved, but the structure becomes more complex

Engineering Contradiction:
Improveaesthetic appearanceVSAvoidstructural complexity
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The patent employs thin film structures for the decorative component, achieving a crystal-like transparent appearance. The thin film design maintains aesthetic simplicity while enabling the desired visual effect of being invisible or dimly visible when deactivated and brightly visible when activated. This approach avoids complex structural mechanisms by relying on optical properties of thin transparent materials.

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 the display of diverse information with a luminous effect in a crystal-like transparent decorative lighting component, saving space and reducing energy consumption while providing versatile and aesthetically pleasing designs.

Implementation Method 1

a light guide configured to guide the LED light to propagate toward the appearance decorative component

Methodology Applied
Scientific EffectOptical transmission: Light

Implementation Method 2

utilizes optically reflective information structures on the light guide surfaces to display information with a luminous effect when activated

Methodology Applied
Scientific EffectOptical reflection: Reflection

Data Source

PatentEP4604105A1Lighting structure
Publication Date: 2025.08.20 SILITECH TECH CORP
  • EP4604105A1 patent drawingFigure 1~2
  • EP4604105A1 patent drawingFigure 3~4
  • EP4604105A1 patent drawingFigure 5~7

AI summary

The present invention relates to a lighting structure. The lighting structure includes: an appearance decorative component; a light-emitting unit emitting an LED light when activated; a circuit substrate configured to provide the light-emitting unit to be configured thereon and to control the light-emitting unit; and a light guide configured to guide the LED light to propagate toward the appearance decorative component.