Display Panel Organic Layer Overlap for Moisture Sealing
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Solution Overview
Problem
Existing display devices, particularly organic light emitting display devices, face challenges in preventing moisture permeation which can degrade the organic light emitting elements, and existing manufacturing methods do not effectively address this issue by ensuring proper alignment and sealing of components.
Innovation Solution
The display device incorporates a display panel with a polarizing plate and an organic layer, where the polarizing plate and organic layer are simultaneously cut and aligned to overlap, with a watertight member and transparent adhesive layer to prevent moisture ingress, and a bending protection layer is used to manage stress during bending, ensuring the organic layer is integrally formed with the bending protection layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the polarizing plate and organic layer are separately manufactured and assembled, then manufacturing flexibility is improved, but alignment precision and sealing effectiveness deteriorate
Solution Approach 1:
The patent combines the polarizing plate and organic layer into a single integrated structure where the organic layer is formed directly on the polarizing plate in one manufacturing process. This merging eliminates the need for separate assembly steps, ensuring precise alignment between the two layers while maintaining manufacturing efficiency through a unified production approach.
2Device complexity
If conventional sealing methods are used, then manufacturing simplicity is maintained, but moisture sealing effectiveness deteriorates
Solution Approach 1:
The patent employs the organic layer as a flexible sealing film that extends beyond the display area to overlap with the polarizing plate, creating a moisture barrier. This thin film approach provides effective moisture sealing without requiring complex sealing structures, maintaining manufacturing simplicity while improving reliability.
3Loss of substance
If the organic layer is formed only in the display area, then material usage is optimized, but moisture protection coverage deteriorates
Solution Approach 1:
The patent extends the organic layer from the display area into the non-display area, utilizing the spatial dimension beyond the visible display region. This dimensional extension allows the organic layer to serve dual purposes: maintaining material efficiency in the display area while providing extended moisture protection in the non-display area where the layer overlaps with the polarizing plate.
Data Source
AI summary
A display device includes a display panel including a first area and a second area, a first end of the display panel being in the first area and a second end of the display panel being in the second area, wherein the second area extends away from the first area in a first direction, and the second end of the display panel protrudes from the first end of the display panel 1 in a second direction perpendicular to the first direction. a polarizing plate on the display panel, a first end of the polarizing plate being located in the first area overlapping the first end of the display panel in a plan view and an organic layer on the display panel in the second area, the organic layer extending away from the polarizing plate in the second direction, an end of the organic layer overlapping the second end of the display panel in a plan view.