Protective Layer Segmentation for Display Panel Manufacturing
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Solution Overview
Problem
Existing display device manufacturing processes face challenges in effectively protecting display devices with various shapes, as conventional protective films are limited in processing and removing these shapes without damaging the devices.
Innovation Solution
A method involving the formation of a display device with a protruding part on the base layer and a removable protective layer, where ultraviolet light is used to form the protective layer and laser light to detach the display panels from the substrate, allowing for easy removal of the protective layer without damaging the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional protective films are used to protect display devices during manufacturing, then protection is provided, but the films cannot be easily removed without damaging the device
Solution Approach 1:
The protective layer is segmented into multiple functional layers: a lower protective layer in direct contact with the display device that provides protection, and an upper removable protective layer that can be easily detached. This segmentation allows each layer to have specialized functions - the lower layer adheres to the device while the upper layer can be removed without damaging the device or the lower layer.
Solution Approach 2:
The lower protective layer acts as an intermediary between the display device and the upper removable protective layer. It provides the adhesion necessary for protection while allowing the upper layer to be removed easily. The intermediary layer transfers the protective function while enabling easy removal of the outer layer.
2Reliability
If protective films are applied to display devices with various shapes, then protection is provided, but processing the various shapes is limited
Solution Approach 1:
The protective layers are formed as thin film structures that can conform to various shapes of display devices. The film-based protective layer can be applied to curved, irregular, or complex geometries that rigid protective structures cannot accommodate, providing versatile protection across different device shapes.
Solution Approach 2:
The protective layer structure provides universal protection applicable to various display device shapes and sizes. The same basic layered structure can be adapted to different geometries, making it a versatile solution that doesn't require shape-specific protective designs.
3Reliability
If a protective layer is provided during manufacturing, then protection is achieved, but the protective layer cannot be easily removed
Solution Approach 1:
The removable protective layer is designed to be easily extracted or removed from the display device after manufacturing. The layer is structured to allow clean separation without requiring complex removal processes, reducing the time and effort needed for protective layer removal while maintaining protection during the manufacturing phase.
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 method enables effective protection of display panels with various shapes during manufacturing and facilitates easy removal of the protective layer, enhancing the reliability and efficiency of the display device production process.
Implementation Method 1
providing ultraviolet light from above the provided protective layer resin to form a protective layer
Implementation Method 2
providing laser light from below the glass substrate to detach the display panels from the glass substrate
Data Source
AI summary
A display device includes an active region, a pad region adjacent to the active region, a first peripheral region between the active region and the pad region, a second peripheral region outside the active region and spaced apart from the pad region, a base layer, a circuit layer on the base layer, a light-emitting element layer on the circuit layer and corresponding to the active region, a capping layer on the light-emitting element layer, a dam part extended along the active region and in the first peripheral region and the second peripheral region, and a protruding part outside the dam part in the second peripheral region and on the base layer.