Laminated Optical Substrate for Polarized Light Splitting Displays

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Solution Overview

Problem

Existing electronic devices with display functions suffer from issues such as image overlap and inadequate display quality due to unoptimized reflectivity of different polarized lights.

Innovation Solution

The electronic device incorporates a laminated substrate structure with alternating layers of optical adjustment layers and dielectric layers, which adjust the reflectivity of different polarized lights to enhance display quality by achieving polarized light splitting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a conventional display structure is used, then the device structure is simple, but the reflectivity of different polarized lights is unoptimized causing image overlap and inadequate display quality

Engineering Contradiction:

Improvedisplay qualityVSAvoidlaminated substrate structure

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The display device is segmented into multiple functional layers including substrate, optical adjustment layer, dielectric layer, and ink layer. Each layer performs a specific function: the optical adjustment layer controls reflectivity for different polarized lights, the dielectric layer provides electrical insulation and structural support, and the ink layer contains the display material. This segmentation allows precise control of optical properties to eliminate image overlap while maintaining manageable structural complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent employs composite material structures combining different materials with complementary properties. The optical adjustment layer uses materials with specific refractive indices to control polarization, the dielectric layer uses insulating materials for electrical stability, and the ink layer uses display-specific materials. This composite approach enables simultaneous optimization of optical performance and structural integrity.

Inventive Principle:

Principle #40Composite materials

2Object-affected harmful factors

If the reflectivity ratio between top and bottom surfaces is increased to reduce image overlap, then display quality improves, but the complexity of the optical adjustment structure increases

Engineering Contradiction:

Improveimage overlapVSAvoidoptical adjustment layer structure

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The optical adjustment layer is designed with local quality variations, where different regions of the layer have different optical properties. The layer thickness, material composition, or surface characteristics are varied locally to control the reflectivity for different polarized lights at specific positions, thereby reducing image overlap without requiring a completely complex structure throughout the entire device.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent utilizes parameter changes in the optical adjustment layer, such as varying the thickness, refractive index, or surface roughness of the layer to control reflectivity. By adjusting these parameters, the device achieves the desired reflectivity ratio greater than 100 between top and bottom surfaces to minimize image overlap while keeping the structural complexity manageable.

Inventive Principle:

Principle #35Parameter changes

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

This structure improves display quality by ensuring a reflectivity ratio greater than 100 between the top and bottom surfaces, reducing image overlap and enhancing overall display performance.

Implementation Method 1

adjust the reflectivity of different polarized lights to enhance display quality by achieving polarized light splitting

Methodology Applied

Scientific EffectPolarized light splitting: Polarisation

Implementation Method 2

improves display quality by ensuring a reflectivity ratio greater than 100 between the top and bottom surfaces

Methodology Applied

Scientific EffectReflection: Reflection

Data Source

PatentUS20250389872A1Electronic devices

Publication Date: 2025.12.25 INNOLUX CORP

AI summary

An electronic device is provided. The electronic device includes a laminated substrate. The laminated substrate includes a substrate having a first surface and a second surface opposite the first surface; a first optical adjustment layer disposed on the first surface; a dielectric layer disposed on the first optical adjustment layer; and an ink layer disposed on the second surface. The first optical adjustment layer includes at least one of a metal material, a semiconductor material, semi-transparent ink and a transparent conductive material.