Display Filler Member Separation Space for Optical Adhesive Curing

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Solution Overview

Problem

Conventional displays are prone to breakage due to external forces because the extension of the display is separated from the outer plate, leading to a higher risk of damage compared to the light-emitting portion.

Innovation Solution

Incorporating a filler member with a separation space that allows light transmission to an optical adhesive member, which is positioned between the opaque and transparent areas, enhancing the mechanical strength of the display by ensuring adequate curing of the adhesive and distributing light effectively for bonding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the extension of the display is separated from the outer plate, then the display structure is easier to manufacture, but the mechanical strength and resistance to external forces deteriorates

Engineering Contradiction:
Improveease of manufactureVSAvoidmechanical strength
Core Design Contradiction:
Ease of manufactureVSStrength

Solution Approach 1:

The patent introduces an optical adhesive member as an intermediary component between the display extension and the outer plate. This adhesive member includes a light-transmissive filler with a separation space that allows UV light to pass through and cure the adhesive, thereby bonding the separated display extension to the outer plate and improving mechanical strength while maintaining ease of manufacture

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The filler is divided into multiple segments or particles rather than being a continuous solid material. This segmentation creates separation spaces between filler particles that allow UV light to penetrate through the filler and reach the optical adhesive member for curing, while still providing mechanical support and bonding functionality

Inventive Principle:
Principle #1Segmentation

2Reliability

If the filler is made light-transmissive to allow UV light transmission, then the curing of optical adhesive member improves, but the mechanical strength may deteriorate

Engineering Contradiction:
Improvecuring reliabilityVSAvoidmechanical strength
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The filler particles are designed with specific local properties: they are light-transmissive to allow UV light passage for adhesive curing, yet they maintain sufficient mechanical strength through their material composition and particle structure. The separation spaces between particles are strategically positioned to allow light transmission while the surrounding filler matrix provides mechanical support

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The filler is constructed as a composite material combining light-transmissive properties with mechanical strength. The composite structure of filler particles with separation spaces enables both UV light transmission for reliable adhesive curing and sufficient mechanical strength to support the bonded structure

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 solution increases the mechanical strength of the display by ensuring proper curing of the optical adhesive and bonding between the display panel and the window, thereby reducing the risk of breakage and enhancing durability.

Implementation Method 1

The filler member transmits a light of a designated band, which is for curing the optical adhesive member, to a portion of the optical adhesive member disposed below the opaque area

Methodology Applied
Scientific EffectPhotopolymerisation: Photopolymerisation

Data Source

PatentUS11088344B2Display including filler member having separation space allowing light to be transmitted to optical adhesive member and electronic device including the same
Publication Date: 2021.08.10 SAMSUNG ELECTRONICS CO LTD
  • US11088344B2 patent drawing
  • US11088344B2 patent drawing
  • US11088344B2 patent drawing

AI summary

An electronic device is provided, which includes a window including a transparent area and an opaque area; a panel disposed below the transparent area and including multiple pixels; a substrate disposed below the panel; an optical adhesive member disposed between the window and the panel; and a filler member disposed in at least a portion of a space formed between the opaque area and the substrate. The filler member transmits a light of a designated band, which is for curing the optical adhesive member, to a portion of the optical adhesive member disposed below the opaque area through a separation space between the filler member and the portion of the optical adhesive member.