Layered Reflective Structure for Uniform Light Emission

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Solution Overview

Problem

Existing electronic devices face issues with optical reflective sheets and adhesives due to precision limitations in cutting and thickness constraints, leading to inadequate reflectivity, light leakage, and uneven lighting.

Innovation Solution

A reflective structure comprising a first insulating layer, a metal layer, and a second insulating layer is introduced, with the metal layer between the insulating layers, enhancing reflectivity and reducing light loss.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If optical reflective sheet is used, then reflectivity is improved, but manufacturing precision deteriorates due to cutting limitations

Engineering Contradiction:
ImprovereflectivityVSAvoidcutting precision
Core Design Contradiction:
Illumination intensityVSManufacturing precision

Solution Approach 1:

The patent applies composite materials by combining multiple layers (substrate layer, reflective layer, and protective layer) to create an integrated reflective structure. This composite approach eliminates the need for separate cutting operations while maintaining high reflectivity, thereby resolving the contradiction between improved reflectivity and manufacturing precision.

Inventive Principle:
Principle #40Composite materials

2Ease of manufacture

If optical reflective adhesive is used, then ease of manufacture is improved, but reflectivity deteriorates due to thickness constraints

Engineering Contradiction:
Improveapplication easeVSAvoidreflectivity
Core Design Contradiction:
Ease of manufactureVSIllumination intensity

Solution Approach 1:

The patent segments the reflective component into distinct functional layers: a substrate layer for structural support, a reflective layer for light reflection, and a protective layer for durability. This segmentation allows each layer to be optimized independently, ensuring sufficient reflectivity while maintaining ease of manufacture through standardized layering processes.

Inventive Principle:
Principle #1Segmentation

3Illumination intensity

If optical reflective adhesive thickness is increased, then reflectivity is improved, but device complexity worsens due to overflow and uneven lighting

Engineering Contradiction:
ImprovereflectivityVSAvoidstructural complexity
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The patent employs thin-film technology to create a reflective structure with controlled thickness. The reflective layer is deposited as a thin film that provides sufficient reflectivity without excessive thickness, preventing overflow and uneven lighting while maintaining structural simplicity and ease of integration.

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 reflective structure improves light-emitting performance by increasing reflectivity and reducing light leakage, providing uniform brightness and addressing thickness-related issues.

Implementation Method 1

the reflective structure includes a first insulating layer, a metal layer, and a second insulating layer, and the metal layer is disposed between the first insulating layer and the second insulating layer

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentUS12588318B2Electronic device
Publication Date: 2026.03.24 INNOLUX CORP
  • US12588318B2 patent drawing
  • US12588318B2 patent drawing
  • US12588318B2 patent drawing

AI summary

An electronic device is provided. The electronic device includes a driving substrate, a light-emitting unit, and a reflective structure. The driving substrate includes a contact. The light-emitting unit is disposed on the driving substrate and electrically connected to the contact. The reflective structure is disposed on the driving substrate. Wherein the reflective structure includes a first insulating layer, a metal layer, and a second insulating layer, and the metal layer is disposed between the first insulating layer and the second insulating layer.