Vehicle Grille Lighting With Layered 3D Pattern Illusion

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Solution Overview

Problem

Existing vehicle grille lighting technologies face limitations in expressing brand identity, leading to increased development and production costs, as well as weight gain due to the use of multiple lighting devices, while conventional solutions fail to effectively utilize the grille area for differentiated lighting effects.

Innovation Solution

A lighting device for vehicles incorporating a light source, shield layer, pattern layer, and optionally a color layer, which creates a three-dimensional optical illusion through overlapping pattern portions, allowing for dynamic grille or bumper lighting effects both day and night, using a combination of light-transmissive materials and films.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple lighting devices are used to achieve grille lighting, then lighting effects and brand identity expression are improved, but device complexity, weight, and production costs increase

Engineering Contradiction:

Improvelighting effectsVSAvoiddevice complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple lighting functions into a single integrated lighting device. The housing integrates the light source, shield layer with first pattern portion, and pattern layer with second pattern portion into one unified structure that can be mounted on the vehicle grille, eliminating the need for multiple separate lighting devices while maintaining diverse lighting effects

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The single lighting device performs multiple functions: it provides illumination through the light source, creates patterns through the shield layer and pattern layer, and can display different lighting effects by controlling which portions are illuminated. This multi-functional design replaces what would traditionally require multiple specialized lighting components

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple lighting devices are used to achieve grille lighting, then lighting effects and brand identity expression are improved, but weight increases

Engineering Contradiction:

Improvelighting effectsVSAvoidweight

Core Design Contradiction:

Adaptability or versatilityVSWeight of moving object

Solution Approach 1:

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If multiple lighting devices are used to achieve grille lighting, then lighting effects and brand identity expression are improved, but production costs increase

Engineering Contradiction:

Improvelighting effectsVSAvoidproduction costs

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Inventive Principle:

Principle #5Merging (Combining)

4Area of stationary object

If conventional grille lighting solutions are used, then lighting area is expanded, but brand identity expression and lighting content effectiveness are limited

Engineering Contradiction:

Improvelighting areaVSAvoidbrand identity expression

Core Design Contradiction:

Area of stationary objectVSAdaptability or versatility

Solution Approach 1:

The patent applies different functional qualities to different portions of the lighting device. The shield layer has a shield portion that blocks light and a first pattern portion that transmits light, while the pattern layer has a second pattern portion with three-dimensional patterns. This local differentiation allows the same lighting area to express complex brand identity through varied light transmission and three-dimensional optical effects

Inventive Principle:

Principle #3Local quality

5Device complexity

If a single integrated lighting device is used, then device complexity, weight, and production costs are reduced, but lighting effects and brand identity expression must be maintained

Engineering Contradiction:

Improvedevice complexityVSAvoidlighting effects

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent incorporates a three-dimensional pattern in the second pattern portion of the pattern layer. This three-dimensional structure creates optical illusions and enhanced visual effects that maintain lighting versatility while using a single integrated device, as the three-dimensional patterns interact with light to produce complex visual outcomes from a unified structure

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

The device provides a competitive advantage by offering distinct visual effects both when turned on and off, enhancing brand identity with reduced weight and cost, and enabling continuous image continuity with the vehicle body.

Implementation Method 1

a shield layer configured to be positioned in front of the light source, and have a shield portion that shields light emitted from the light source

Methodology Applied

Scientific EffectLight shielding: Absorption (EM radiation)

Implementation Method 2

a first pattern portion through which the light emitted from the light source is transmitted; and a pattern layer configured to be positioned in front of the shield layer, include a light-transmissive material, and have a second pattern portion

Methodology Applied

Scientific EffectLight transmission: Refraction

Implementation Method 3

The lighting device for a vehicle may express a three-dimensional optical illusion pattern on a vehicle skin by utilizing a pattern layer having a three-dimensional pattern, through which a three-dimensional image is created

Methodology Applied

Scientific EffectOptical illusion: Parallax

Data Source

PatentUS12618539B2Lighting device for vehicle

Publication Date: 2026.05.05 HYUNDAI MOBIS CO LTD

AI summary

Provided is a lighting device for a vehicle including a light source configured to emit light, a shield layer configured to be positioned in front of the light source, and have a shield portion that shields light emitted from the light source and a first pattern portion through which the light emitted from the light source is transmitted, and a pattern layer configured to be positioned in front of the shield layer, include a light-transmissive material, and have a second pattern portion.