Multi-Layer Display Optical Structure for Low-Glare Reflection Control

Solution Overview

Problem

Existing display devices suffer from specular reflection light that reduces visibility, and existing anti-reflection and anti-glare coatings fail to completely eliminate reflected light and glare, leading to a suboptimal viewing experience akin to paper-based materials.

Innovation Solution

A display device with a multi-layer optical structure comprising a protective layer, anti-glare layer, and anti-reflection layer, where the layers have specific optical properties to reduce gloss and reflectivity, achieving a gloss of ≤10 GU and reflectivity of ≥0.6 times the specular component included reflection light.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If anti-reflection coatings and anti-glare coatings are applied to display devices, then reflected light and glare are reduced, but they cannot be completely eliminated resulting in suboptimal viewing experience

Engineering Contradiction:

Improvereflected light and glareVSAvoidviewing experience quality

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The optical structure is divided into multiple distinct layers (first layer, second layer, third layer) with different optical properties. Each layer serves a specific function in reducing different types of reflection, collectively achieving complete elimination of glare and reflected light that single-layer coatings cannot achieve.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent uses composite optical structure with layers having different optical properties (different refractive indices, thicknesses, and material compositions). This composite approach combines the advantages of different materials to achieve both anti-reflection and anti-glare effects simultaneously, providing a viewing experience similar to paper-based materials.

Inventive Principle:

Principle #40Composite materials

2Object-affected harmful factors

If single-layer anti-reflection or anti-glare coating is used, then device complexity is low, but the coatings fail to completely eliminate reflected light and glare

Engineering Contradiction:

Improvereflected light eliminationVSAvoidoptical structure complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The optical structure is divided into multiple distinct layers (first layer, second layer, third layer) with different optical properties. Each layer serves a specific function in reducing different types of reflection, collectively achieving complete elimination of glare and reflected light that single-layer coatings cannot achieve.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent optimizes specific parameters of each layer including thickness (controlled to achieve gloss ≤10 GU), refractive index, and material composition. By precisely controlling these parameters, the multi-layer structure achieves superior anti-reflection performance while maintaining manufacturability.

Inventive Principle:

Principle #35Parameter changes

3Object-affected harmful factors

If gloss is reduced to ≤10 GU to achieve paper-like viewing experience, then anti-glare effect is improved, but measurement and control precision requirements increase

Engineering Contradiction:

Improveglare reductionVSAvoidgloss control precision

Core Design Contradiction:

Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The patent optimizes specific parameters of each layer including thickness (controlled to achieve gloss ≤10 GU), refractive index, and material composition. By precisely controlling these parameters, the multi-layer structure achieves superior anti-reflection performance while maintaining manufacturability.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The optical layers are designed and configured in advance with predetermined thicknesses and optical properties during the manufacturing process. This preliminary design ensures that the final gloss value meets the ≤10 GU requirement without requiring complex post-processing adjustments.

Inventive Principle:

Principle #10Preliminary action

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 multi-layer optical structure significantly reduces reflected light and glare, enhancing the visual quality and providing a viewing experience similar to paper-based materials.

Implementation Method 1

the specular reflection light of the display device may reduce the visibility of the screen

Methodology Applied

Scientific EffectSpecular reflection: Reflection

Implementation Method 2

the first layer and the second layer have different optical properties

Methodology Applied

Scientific EffectOptical refraction: Refraction

Data Source

PatentUS20260036732A1Electronic device

Publication Date: 2026.02.05 INNOLUX CORP

AI summary

An electronic device includes a panel and an optical structure. The optical structure layer is disposed on the panel and comprising a first layer, a second layer and a third layer, wherein the second layer is disposed between the first layer and the third layer, the first layer is disposed between the second layer and the panel, the first layer and the second layer have different optical properties. Wherein a gloss of the electronic device is smaller than or equal to 10GU. Wherein a reflectivity of a specular component excluded (SCE) reflection light of the electronic device is greater than or equal to 0.6 times the reflectivity of the specular component included (SCI) reflection light of the electronic device.