Slim Display Device Sealing Structure for Moisture Protection
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Solution Overview
Problem
Conventional display devices have wide bezels that detract from aesthetics and do not effectively prevent external moisture from entering, which can damage circuit components, and they lack a slim and lightweight design.
Innovation Solution
A display device with a middle cabinet that includes a first support surrounding the sides of the display panel and a second support extending inward from the inner surfaces, where the display panel is seated, and a sealing-bonding member is used to hermetically couple the display panel with the middle cabinet, reducing bezel width and preventing moisture infiltration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the bezel area is reduced to achieve a slim and lightweight design, then the aesthetic appeal and user immersion are improved, but the moisture protection capability deteriorates
Solution Approach 1:
The sealing structure is divided into multiple segments: the sealing-bonding member forms a first sealing structure at the joint between display panel and middle cabinet, while the adhesive layer forms a second sealing structure extending from the first sealing structure to the circuit-mounting part. This segmentation allows each sealing segment to perform its specific function independently, ensuring moisture protection even with reduced bezel width.
Solution Approach 2:
The adhesive layer acts as an intermediary sealing element that extends from the joint between display panel and middle cabinet to the circuit-mounting part. This intermediary structure provides continuous moisture barrier protection, bridging the gap between the main sealing structure and the vulnerable circuit components, thereby maintaining reliability with reduced bezel width.
2Shape
If the bezel area is reduced to achieve a slim and lightweight design, then the aesthetic appeal and user immersion are improved, but the protection of internal circuit components deteriorates
Solution Approach 1:
The adhesive layer is applied in advance to extend from the joint between display panel and middle cabinet to the circuit-mounting part, creating a pre-established moisture barrier path. This preliminary sealing action ensures that when moisture attempts to infiltrate, it encounters the extended adhesive layer barrier before reaching the circuit components, providing proactive protection in the reduced bezel design.
3Reliability
If a wide bezel is used to ensure moisture protection, then the reliability is improved, but the aesthetic appeal and slim design deteriorate
Solution Approach 1:
The sealing protection is extended from the traditional two-dimensional joint sealing to a three-dimensional extended sealing structure. The adhesive layer extends in the spatial dimension from the joint area toward the circuit-mounting part, creating a volumetric moisture barrier that provides comprehensive protection without requiring increased bezel width, thus resolving the contradiction between reliability and aesthetic appeal.
4Ease of manufacture
If the middle cabinet structure is simplified to reduce fabrication complexity, then the ease of manufacture is improved, but the sealing effectiveness may deteriorate
Solution Approach 1:
The sealing and bonding functions are merged into a single sealing-bonding member that simultaneously performs both sealing at the joint between display panel and middle cabinet and structural bonding. This merging simplifies the fabrication process by reducing the number of separate components and assembly steps, while the extended adhesive layer ensures sealing effectiveness is maintained throughout the moisture path.
Data Source
AI summary
A display device includes a display panel; a middle cabinet including a first support surrounding sides of the display panel and a second support extending inward from inner surfaces of the first support with the display panel seated on the second support; and a sealing-bonding member disposed on the second support abutting the first support to couple the display panel with the middle cabinet and to seal the display panel and the middle cabinet together.