Stepped-Bezel Display Device for Waterproof Edge Sealing
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Solution Overview
Problem
Existing display devices face challenges in maintaining a stable display function while minimizing the bezel area to ensure a sufficient display area, particularly in environments subject to external changes, and existing waterproof structures in these areas are prone to moisture penetration due to irregular edges and gaps.
Innovation Solution
A display device design incorporating a waterproof structure with aligned, stepped edges and sealing members in the bezel area, utilizing a combination of waterproof members and sealing members to ensure complete coverage and prevent moisture ingress, despite manufacturing process deviations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a waterproof structure is employed in the bezel area to prevent moisture penetration, then the reliability of the display device is improved, but the bezel area increases, reducing the display area
Solution Approach 1:
The waterproof structure is divided into multiple segments: a first waterproof member positioned at a first edge area of the housing, and a second waterproof member positioned at a second edge area of the housing. These segmented waterproof members are disconnected from each other and define a space between them, allowing the sealing function to be distributed across multiple locations rather than requiring a continuous bezel-wide structure.
Solution Approach 2:
The waterproof and sealing functions are applied locally at specific edge areas where moisture penetration is most likely to occur, rather than uniformly across the entire bezel. The first and second waterproof members are positioned at specific locations, and the first sealing member is applied at the space between them, creating localized protection zones that prevent moisture ingress without requiring a full-bezel waterproof barrier.
2Area of stationary object
If the bezel area is minimized to ensure sufficient display area, then the display area is improved, but the waterproof structure becomes vulnerable to moisture penetration due to irregular edges and gaps
Solution Approach 1:
A first sealing member is introduced as an intermediary element that fills the space defined between the first and second waterproof members. This sealing member is in contact with both waterproof members as well as the panel assembly, window, and housing, creating a bridging seal that connects the discontinuous waterproof structure and prevents moisture from penetrating through the gaps between the segmented waterproof members.
Solution Approach 2:
The waterproof structure transitions from a two-dimensional continuous bezel barrier to a three-dimensional multi-layer configuration. The first sealing member is positioned in the space between the first and second waterproof members, creating a multi-layer waterproof system that addresses moisture protection from multiple directions and planes, effectively sealing the minimized bezel area without requiring uniform bezel expansion.
3Reliability
If a continuous waterproof member is used to ensure complete sealing, then the waterproof performance is improved, but the manufacturing precision requirements increase due to the need for uniform coverage across the entire bezel
Solution Approach 1:
The waterproof structure is segmented into a first waterproof member and a second waterproof member positioned at different edge areas of the housing. These members are disconnected from each other, which eliminates the need for a single continuous waterproof member to span the entire bezel. This segmentation reduces the manufacturing precision requirements by allowing each waterproof member to be manufactured and positioned independently at its respective location.
Solution Approach 2:
The first sealing member acts as an intermediary that connects the first and second waterproof members, which are positioned at separate locations. This allows the waterproof structure to achieve complete sealing functionality through multiple discrete components rather than requiring a single precision-manufactured continuous member, thereby reducing the overall manufacturing precision requirements while maintaining sealing completeness.
Data Source
AI summary
A display device includes a housing including first and second edge areas; a panel assembly between a window and the housing; a first waterproof member corresponding to the first edge area; a second waterproof member corresponding to the second edge area and disconnected from the first waterproof member; and a first sealing member in contact with the first and second waterproof members, the panel assembly, the window and the housing. The panel assembly includes a plurality of members each protruded further than an end of the first waterproof member to respectively define first edges. Each first edge is in contact with the first sealing member, and protruded distances of the first edges from the end of the first waterproof member increase as a cross-sectional distance from the plurality of members to the window decreases to form a stepped shape of the panel assembly at the first edges.