Display Panel Sealing Structure for Thin Moisture Protection
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Solution Overview
Problem
Conventional display devices face challenges in enhancing durability while maintaining a thin form factor, as existing designs often compromise on thickness for protection and sealing, leading to potential vulnerabilities in moisture and impurity ingress.
Innovation Solution
The design incorporates a display panel with a first substrate and a second substrate, where the second substrate has a larger area and greater thickness, overlapping the first substrate's edges, and a case member with protruding side portions for enhanced protection, along with a sealing portion and adhesive members to create a sealed structure without additional glass substrates, thereby improving durability and reducing thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional glass substrates are added for protection and sealing, then durability and moisture protection are improved, but device thickness increases
Solution Approach 1:
The patent merges the sealing function and protective function into a single integrated structure. The case member's first side portion simultaneously provides mechanical protection and forms a sealed environment when combined with the second substrate, eliminating the need for separate additional glass substrates that would increase thickness.
Solution Approach 2:
The invention transitions from a planar sealing approach to a three-dimensional configuration. The case member protrudes upward from the bottom portion, creating a vertical dimension that allows the second substrate to overlap and seal the edges without adding horizontal thickness to the display panel.
2Reliability
If the second substrate has larger area to overlap first substrate edges, then sealing effectiveness is improved, but device complexity increases
Solution Approach 1:
The second substrate serves multiple functions simultaneously: it acts as a protective cover, a sealing element that prevents moisture ingress at the edges, and a structural component that integrates with the case member. This multi-functionality reduces the need for additional separate components.
Solution Approach 2:
The case member is segmented into a bottom portion and a first side portion that protrudes upward. This segmentation allows the structure to create an enclosed space with the second substrate while maintaining a thin profile at the display surface.
Data Source
AI summary
A display panel includes a display area, a first substrate including a transistor in the display area, and a second substrate facing the first substrate, and a case member in which the display panel is accommodated. The case member including a bottom portion facing the first substrate and the second substrate of the display panel, and a first side portion protruding from the bottom portion and toward the display panel. The second substrate include a first portion corresponding to the first substrate, and a second portion extended from the first portion to overlap the first side portion of the case member.