Organic Light-Emitting Display Sealing with Insulating Protrusions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing organic light-emitting display apparatuses face challenges in achieving uniform sealing and adhesion between substrates, leading to potential separation and reduced durability.
Innovation Solution
The apparatus incorporates a layered structure with insulating and conductive layers extending in both horizontal and vertical directions within openings in the sealing area, along with a sealing member that contacts the substrates through these openings, enhancing adhesion and uniform sealing by absorbing and distributing heat from a laser beam for hardening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing member is used to attach substrates in the sealing area, then substrate attachment is achieved, but uniform adhesion and sealing are difficult to achieve leading to potential separation
Solution Approach 1:
The patent applies local quality by creating protrusions at specific locations within the sealing area where the sealing member contacts the lower substrate. These protrusions concentrate the contact points and improve adhesion at critical locations rather than attempting uniform contact across the entire sealing area. The insulating layers are also strategically positioned to provide localized insulation where needed.
Solution Approach 2:
The patent implements preliminary action by forming protrusions and insulating layer structures before the sealing member is applied. The lower substrate is prepared in advance with these structural features that will facilitate uniform adhesion when the sealing member is later attached, ensuring proper sealing geometry is established prior to the bonding process.
2Manufacturing precision
If insulating and conductive layers are added to improve sealing uniformity, then adhesion improves, but device structure becomes more complex
Solution Approach 1:
The patent applies multi-functionality by designing the conductive layers to serve dual purposes: they provide electrical connectivity for the display device functions while simultaneously acting as part of the sealing structure. The same conductive layers that conduct electricity also form protrusions that enhance mechanical adhesion and sealing contact, eliminating the need for separate dedicated sealing components.
Solution Approach 2:
The patent merges the insulating and conductive layers into an integrated layered structure that performs both electrical and mechanical sealing functions. Rather than adding separate insulating components and conductive components, the patent combines them into a unified multi-layer construction where each layer contributes to both electrical performance and sealing integrity.
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 improves the adhesion and uniform hardening of the sealing member, ensuring the substrates are securely attached and reducing the likelihood of separation, thereby enhancing the durability and reliability of the organic light-emitting display.
Implementation Method 1
enhancing adhesion and uniform sealing by absorbing and distributing heat from a laser beam for hardening
Implementation Method 2
improves the adhesion and uniform hardening of the sealing member, ensuring the substrates are securely attached
Data Source
AI summary
An organic light-emitting display apparatus includes: a lower substrate including a major surface, which comprises a display area and a sealing area surrounding the display area when viewed in a direction perpendicular to the major surface; an insulating structure disposed over the lower substrate in both the display area and the sealing area; a plurality of openings formed through the insulating structure in the sealing area, the openings comprising inner side surfaces; a first conductive layer including a first portion over the insulating structure extending in a horizontal direction, and a second portion extending on at least part of the inner side surfaces of the openings in a vertical direction; an upper substrate placed over the lower substrate; and a sealing member interposed between the lower substrate and the upper substrate in the sealing area thereof and filing the openings, thereby integrating the lower and upper substrates.