Laminated Flexible Screen Cover Plate for Rigidity and Bendability

Solution Overview

Problem

Flexible screen cover plates made of glass lack bendability and are prone to cracking, while those made of plastic lack rigidity and scratch resistance, failing to effectively protect flexible screens from external forces.

Innovation Solution

A laminated structure comprising a first and second flexible transparent plate with a curable optical adhesive layer in between, enhancing rigidity and bendability by distributing and dampening external forces across the layers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a glass screen cover plate is used, then rigidity and scratch resistance are improved, but bendability deteriorates and the plate is prone to cracking

Engineering Contradiction:

ImproverigidityVSAvoidbendability

Core Design Contradiction:

StrengthVSAdaptability or versatility

Solution Approach 1:

The screen cover plate is divided into multiple layers: a flexible transparent plate layer and a transparent plate layer. This segmentation allows each layer to perform its specialized function - the flexible layer provides bendability while the transparent plate layer provides rigidity and scratch resistance, resolving the contradiction between these opposing requirements.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention uses a composite structure combining flexible transparent plate material and transparent plate material in a laminated configuration. This composite approach integrates the advantages of both materials - the flexibility and bendability of the flexible transparent plate with the rigidity and scratch resistance of the transparent plate, eliminating the need to choose between conflicting material properties.

Inventive Principle:

Principle #40Composite materials

2Adaptability or versatility

If a plastic material screen cover plate is used, then bendability is improved, but rigidity deteriorates and the plate is likely to be scratched

Engineering Contradiction:

ImprovebendabilityVSAvoidrigidity

Core Design Contradiction:

Adaptability or versatilityVSStrength

Solution Approach 1:

The screen cover plate is divided into multiple layers: a flexible transparent plate layer and a transparent plate layer. This segmentation allows each layer to perform its specialized function - the flexible layer provides bendability while the transparent plate layer provides rigidity and scratch resistance, resolving the contradiction between these opposing requirements.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention uses a composite structure combining flexible transparent plate material and transparent plate material in a laminated configuration. This composite approach integrates the advantages of both materials - the flexibility and bendability of the flexible transparent plate with the rigidity and scratch resistance of the transparent plate, eliminating the need to choose between conflicting material properties.

Inventive Principle:

Principle #40Composite materials

3Adaptability or versatility

If a plastic material screen cover plate is used, then bendability is improved, but impact resistance deteriorates as the plate deforms under external force

Engineering Contradiction:

ImprovebendabilityVSAvoidimpact resistance

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The screen cover plate is divided into multiple layers: a flexible transparent plate layer and a transparent plate layer. This segmentation allows each layer to perform its specialized function - the flexible layer provides bendability while the transparent plate layer provides rigidity and scratch resistance, resolving the contradiction between these opposing requirements.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention uses a composite structure combining flexible transparent plate material and transparent plate material in a laminated configuration. This composite approach integrates the advantages of both materials - the flexibility and bendability of the flexible transparent plate with the rigidity and scratch resistance of the transparent plate, eliminating the need to choose between conflicting material properties.

Inventive Principle:

Principle #40Composite materials

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 laminated structure improves overall structural rigidity and ensures bending performance, providing effective protection against external forces and maintaining display quality.

Implementation Method 1

an optical adhesive layer (30), wherein the optical adhesive layer (30) is located between the first force-bearing plate (10) and the second force-bearing plate (20), and is used to bond the first force-bearing plate (10) and the second force-bearing plate (20)

Methodology Applied

Scientific EffectAdhesion: Adhesive

Data Source

PatentUS12601941B2Screen cover plate, display apparatus, and electronic device

Publication Date: 2026.04.14 HUAWEI TECH CO LTD

AI summary

In accordance with an embodiment, a screen cover plate includes: a first force-bearing plate and a second force-bearing plate, wherein the first force-bearing plate and the second force-bearing plate are disposed in a laminated manner, and both the first force-bearing plate and the second force-bearing plate are flexible transparent plates; and an optical adhesive layer located between the first force-bearing plate and the second force-bearing plate, and bonding the first force-bearing plate and the second force-bearing plate together, wherein a material of the optical adhesive layer is curable optical adhesive.