Frit Sealing System With Elastic Pressurization For OLED Substrates
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Solution Overview
Problem
The existing sealing processes for organic light-emitting display apparatuses are inadequate in preventing moisture and oxygen ingress, leading to reduced device lifespan, luminous efficiency, and color discoloration due to oxidation and electrode material peeling.
Innovation Solution
A frit sealing system that uses a laser irradiation member to melt and attach frit between substrates, combined with a pressurization member that applies pressure using an elastic portion and fluid to ensure uniform and controlled pressure, enhancing adhesion and mechanical reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing process is performed to prevent moisture and oxygen ingress, then device lifespan and luminous efficiency are improved, but the complexity of the manufacturing process increases
Solution Approach 1:
The sealing process is integrated with the existing manufacturing流程 by combining the frit coating, laser irradiation, and pressurization steps into a unified sealing operation. The pressurization member is positioned to simultaneously apply pressure during laser irradiation, merging multiple functions into one coordinated process that reduces overall manufacturing complexity while maintaining reliable sealing.
Solution Approach 2:
The conventional mechanical sealing methods are replaced with a laser-based frit melting process combined with controlled pressurization. The laser irradiation member melts the frit material to form a seal, while the pressurization member applies controlled pressure through an elastic portion and fluid system, substituting traditional mechanical sealing approaches with a more precise and integrated method.
2Reliability
If pressure is applied during laser irradiation to enhance adhesion, then sealing reliability is improved, but the device complexity increases
Solution Approach 1:
An elastic portion is introduced as an intermediary between the pressurization member and the second substrate. This elastic component transmits the pressing force uniformly during laser irradiation while accommodating slight variations in substrate positioning. A fluid is also used as an intermediary to transmit pressure through a space between the base and elastic portion, providing controlled and uniform pressure distribution that enhances sealing reliability without requiring complex mechanical pressure application systems.
3Device complexity
If the pressurization member structure is simplified, then device complexity is reduced, but pressure uniformity and adhesion quality deteriorate
Solution Approach 1:
The pressurization member incorporates an elastic portion that acts as a flexible element to distribute pressure uniformly across the sealing area. This elastic component can deform to accommodate surface irregularities and ensure consistent contact pressure during laser irradiation. The combination of the base, elastic portion, and fluid-filled space creates a structure that achieves pressure uniformity without requiring complex mechanical adjustment mechanisms, maintaining structural simplicity while ensuring manufacturing precision.
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 system effectively seals the organic light-emitting display apparatus, improving adhesion between substrates and preventing moisture ingress, thereby extending device lifespan and maintaining luminous efficiency and color accuracy.
Implementation Method 1
a laser irradiation member configured to irradiate a laser on the frit between the first substrate and the second substrate
Implementation Method 2
A frit sealing system for attaching a first substrate and a second substrate by using a fit may include a laser irradiation member configured to irradiate a laser on the frit between the first substrate and the second substrate
Implementation Method 3
a pressurization member on the second substrate, the pressurization member being configured to apply pressure to the second substrate during the irradiation of the laser, the pressurization member including base, and an elastic portion connected to the base and contacting the second substrate
Implementation Method 4
the pressurization member being configured to apply pressure to the second substrate during the irradiation of the laser
Implementation Method 5
The frit sealing system may further include a space between the base and the elastic portion, the space including fluid. When the fluid fills the space between the base and the elastic portion, the elastic portion may be configured to apply pressure to the second substrate
Data Source
AI summary
Provided is a frit sealing system for attaching a first substrate and a second substrate by using a frit. The frit sealing system includes a laser irradiation member configured to irradiate a laser on the frit between the first substrate and the second substrate, and a pressurization member on the second substrate, the pressurization member being configured to apply pressure to the second substrate during the irradiation of the laser, the pressurization member including base, and an elastic portion connected to the base and contacting the second substrate.