Flexible Display Thickness Reduction via Integrated Polarizing Protection

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Solution Overview

Problem

Current flexible displays have a large thickness due to the need for optically clear adhesives to connect layers, which hinders their thinness and flexibility.

Innovation Solution

The flexible display integrates a flexible display panel, a touch function member, a polarizing member, and a protective cover without the use of optical glue, with the polarizing member and protective cover forming a polarizing protection member, and the touch function member disposed on the light emitting direction of the flexible display panel, reducing the thickness by eliminating the need for adhesive connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If optically clear adhesive is used to connect layers, then bonding strength is improved, but thickness increases

Engineering Contradiction:

Improvebonding strengthVSAvoidthickness

Core Design Contradiction:

StrengthVSLength of stationary object

Solution Approach 1:

The patent merges the protective cover and polarizing member into a single integrated component called a polarizing protection member. This eliminates the need for separate adhesive layers between these components, reducing overall thickness while maintaining structural integrity through the integrated design

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent removes the optically clear adhesive from the display structure entirely by implementing direct bonding between the flexible display panel and polarizing protection member. This extraction of the adhesive layer eliminates the thickness contribution from adhesive while maintaining necessary bonding through alternative attachment methods

Inventive Principle:

Principle #2Taking out (Extraction)

2Adaptability or versatility

If multiple separate layers are used, then functionality is improved, but device complexity increases

Engineering Contradiction:

ImprovefunctionalityVSAvoidstructure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The protective cover and polarizing member are combined into one integrated polarizing protection member, reducing the number of separate components and assembly steps while preserving both protection and polarization functions within the single merged structure

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The polarizing protection member serves multiple functions simultaneously: it provides mechanical protection as a cover, maintains polarization properties, and acts as a structural support element. This multi-functionality reduces the need for separate dedicated components

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11296303B2Flexible display and method of fabricating same

Publication Date: 2022.04.05 WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO LTD

AI summary

A flexible display and a method of fabricating same are provided. The flexible display integrates at least two of a flexible display panel, a touch function member, a polarizing member, and a protective cover in the flexible display. It is not necessary to use optical glue or the like to connect components that are integrated, thereby reducing a thickness of the flexible display and alleviating a technical problem that a current display device has a large thickness.