OLED Panel Laser Softening for Tight Sealability
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Solution Overview
Problem
Conventional OLED display panel manufacturing methods result in weak sealability due to the failure of frit glue packaging to tightly laminate the lid and substrate, allowing water-dissolved oxygen to enter the device, which compromises the packaging effectiveness.
Innovation Solution
An OLED display panel manufacturing device and method that utilize a chamber with a laser head to irradiate and soften the protruding glass adhesive, combined with oppositely disposed transparent lamination plates to ensure tight lamination of the packaging lid and substrate, ensuring excellent sealability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If frit glue packaging is used with a protruding portion at the start point, then the packaging process is flexible and convenient, but the lid and substrate fail to be tightly laminated resulting in weak sealability
Solution Approach 1:
The patent applies preliminary action by first curing the UV adhesive to temporarily fix the lid and substrate in a loosely laminated state, creating space for the frit glue protruding portion to be later softened and re-cured. This preliminary fixation allows the protruding portion to be processed without causing misalignment, and subsequent laser scanning softens and re-cures the frit glue to achieve tight lamination and excellent sealability.
2Reliability
If the frit glue protruding portion is softened and re-cured during laser scanning, then the packaging effect should be improved, but the cured UV adhesive maintains the loosely laminated status preventing tight adhesion
Solution Approach 1:
The patent applies dynamics by making the UV adhesive's state changeable - initially cured to provide temporary fixation, then re-softened during laser scanning to allow the frit glue to flow and fill gaps, and finally re-cured to lock in the tight lamination. This dynamic state change enables the UV adhesive to serve multiple functions: initial positioning, allowing movement during frit glue processing, and final sealing.
3Object-affected harmful factors
If the lid and substrate are laminated under nitrogen environment, then oxidation is prevented, but the protruding portion causes one side to fail lamination
Solution Approach 1:
The patent introduces an intermediary approach by using the frit glue protruding portion as a sacrificial element that facilitates the lamination process. The protruding portion is deliberately designed to be softened and re-cured, acting as a mediator that allows the lid and substrate to be pulled together tightly during laser scanning, ensuring uniform lamination while maintaining oxidation prevention through the nitrogen environment.
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 achieves tight lamination and enhanced sealability of the OLED display panel, preventing water-dissolved oxygen from entering the device and prolonging its lifespan.
Implementation Method 1
a laser head located in the chamber and located on a side of the packaging lid above the first transparent lamination plate, and the laser head emitting laser beam and utilizing the laser beam to irradiate a protruding portion of a start point of the glass adhesive
Implementation Method 2
a chamber configured to accommodate an OLED lamination plate and configured to heat the OLED lamination plate
Implementation Method 3
the substrate and the packaging lid are adhered together by glass adhesive and UV adhesive
Data Source
AI summary
An organ light-emitting diode (OLED) display panel manufacturing method and an OLED display panel manufacturing device, the device includes a chamber configured to accommodate and heating an OLED lamination plate, where he OLED lamination plate has a substrate and a packaging lid adhered by glass adhesive and UV adhesive; a transparent lamination plate located in the chamber and configured to laminate the OLED lamination plate; a laser head located in the chamber, located on a side of the packaging lid above the transparent lamination plate and utilizing the laser beam irradiate a protruding portion of a start point of the glass adhesive.