Laminated Glass Display Device Weather Resistance

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Solution Overview

Problem

Existing display devices for outdoor use face challenges in reducing costs and improving production efficiency while maintaining weather resistance, as current methods compromise structural reliability and water vapor blocking ability.

Innovation Solution

The display device incorporates a laminated glass structure with a driving substrate sealed within, a display film located on the substrate, and a sealant layer that seals the edges of the laminated glass, enhancing weather resistance through the glass's hardness, water vapor blocking, and ultraviolet light blocking abilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If OCA, OCR, UV barrier film, moisture barrier film, or cover glass are attached to increase weather resistance, then weather resistance is improved, but structural reliability deteriorates

Engineering Contradiction:

Improveweather resistanceVSAvoidstructural reliability

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent merges multiple protective functions (UV barrier, moisture barrier, structural support) into a single laminated glass structure. The glass substrate itself serves as the protective barrier, eliminating the need for separate OCA, OCR, UV barrier films, and moisture barrier films that compromised structural reliability. This integration maintains weather resistance while improving structural integrity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent uses composite material structure with glass substrate as the primary protective material. The glass substrate combines UV blocking, moisture barrier, and structural strength properties in one material, replacing the composite of multiple separate films and adhesives that reduced structural reliability.

Inventive Principle:

Principle #40Composite materials

2Object-affected harmful factors

If OCA, OCR, UV barrier film, moisture barrier film, or cover glass are attached to increase weather resistance, then weather resistance is improved, but production efficiency deteriorates

Engineering Contradiction:

Improveweather resistanceVSAvoidproduction efficiency

Core Design Contradiction:

Object-affected harmful factorsVSProductivity

Solution Approach 1:

The patent combines multiple protective layers into a single laminated glass assembly that can be installed as one unit. This eliminates the need for multiple separate attachment steps for OCA, UV barrier films, and moisture barrier films, thereby improving production efficiency while maintaining weather resistance.

Inventive Principle:

Principle #5Merging (Combining)

3Object-affected harmful factors

If OCA, OCR, UV barrier film, moisture barrier film, or cover glass are attached to increase weather resistance, then weather resistance is improved, but cost reduction deteriorates

Engineering Contradiction:

Improveweather resistanceVSAvoidcost reduction

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The patent merges multiple protective functions into the glass substrate itself, eliminating the need for separate OCA, UV barrier films, and moisture barrier films. This reduction in component count and assembly steps lowers manufacturing costs while maintaining weather resistance.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent extracts the protective functions from separate adhesive and film layers and transfers them to the glass substrate itself. The glass substrate inherently provides UV blocking, moisture barrier, and structural protection, eliminating the need for additional protective layers and reducing overall cost.

Inventive Principle:

Principle #2Taking out (Extraction)

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 configuration significantly improves the weather resistance of the display device for outdoor use, while also reducing costs and improving structural reliability compared to traditional methods.

Implementation Method 1

the glass laminating material laminates the first glass substrate and the second glass substrate and covers the driving substrate and the at least one display film

Methodology Applied

Scientific EffectWater vapor blocking:

Implementation Method 2

With the hardness, the water vapor blocking ability, and the ultraviolet light blocking ability of the laminated glass itself

Methodology Applied

Scientific EffectUltraviolet light blocking: Absorption (EM radiation)

Data Source

PatentUS20250178318A1Display device

Publication Date: 2025.06.05 E INK HLDG INC

AI summary

A display device includes a laminated glass, a driving substrate, at least one display film, and a sealant layer. The driving substrate is sealed within the laminated glass. The at least one display film is sealed within the laminated glass and is located on the driving substrate. The sealant layer seals edges of the laminated glass.