Display Panel Cover Plate Alignment Openings for Drop Durability
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Solution Overview
Problem
Existing display panel cover plates are prone to misalignment and vulnerable to external shocks, particularly at the openings exposing alignment keys, leading to defects in drop tests.
Innovation Solution
The cover plate design includes alignment openings symmetrically arranged around the active area hole, exposing alignment keys and allowing precise alignment with the display panel, while reducing vulnerable openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If alignment openings are formed on the cover plate to expose alignment keys, then precise alignment between the cover plate and display panel is achieved, but the openings become vulnerable to external shock causing defects in drop tests
Solution Approach 1:
The alignment opening is divided into multiple segments (first alignment opening and second alignment opening) that are spatially separated. This segmentation allows each opening to be optimized independently - the first alignment opening exposes the first alignment key for precise alignment, while the second alignment opening exposes the second alignment key positioned away from the active area hole boundary, reducing vulnerability to external shock
Solution Approach 2:
Different regions of the cover plate are designed with different functional qualities. The first alignment opening is positioned to expose the first alignment key for precise alignment functionality, while the second alignment opening is positioned at a different location to expose the second alignment key with reduced exposure to external shock. This local differentiation optimizes both alignment precision and durability in their respective regions
2Manufacturing precision
If multiple alignment keys are used around the boundary of the active area hole, then alignment precision is improved, but the complexity of the cover plate design increases
Solution Approach 1:
The alignment keys serve multiple functions: they provide precise alignment references during assembly and also serve as structural features that can be integrated with the display panel's existing architecture. The first and second alignment keys are positioned to fulfill both alignment precision requirements and durability considerations, making the alignment system multi-functional rather than adding purely redundant components
Data Source
AI summary
A display device includes a display panel including an active area hole located in the active area and defined by a boundary, and a first alignment key located around the boundary of the active area hole, and a cover plate located on the display panel and protecting the display panel, wherein the cover plate includes a first alignment opening that is above the first alignment key and includes an edge.