Display Module Sealing Structure for Hollow Backplate
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Solution Overview
Problem
Current liquid crystal display modules are prone to poor display quality due to the easy entry of water vapor through hollow areas, causing wrinkles and deformation in components and film materials.
Innovation Solution
A display module with a sealing structure, including a sealing plate or sealant, is integrated to enclose the hollow area in the backplate, preventing water vapor and dust from entering and maintaining the structural integrity of the light guide plate and film layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a hollow area is formed on the backplate to reduce weight, then the weight of the display module is reduced, but water vapor easily enters the display module from the hollow area causing wrinkles and deformation
Solution Approach 1:
A sealing plate is disposed at the hollow area of the backplate to seal the hollow area, preventing water vapor from entering through the hollow structure while maintaining the weight reduction benefit. The sealing plate acts as a thin film barrier that closes the opening without requiring solid filling material.
Solution Approach 2:
The sealing plate serves as an intermediary element between the hollow area and the internal components, blocking water vapor entry paths while allowing the hollow structure to remain for weight reduction. This mediator resolves the conflict between open hollow structure and protection from environmental factors.
2Weight of moving object
If a hollow area is formed on the backplate, then weight is reduced, but the structural integrity and sealing performance deteriorate
Solution Approach 1:
The sealing plate functions as a thin film element that restores sealing capability at the hollow area without requiring thick structural material, thus maintaining weight reduction while improving sealing performance.
Solution Approach 2:
The backplate is segmented into solid and hollow regions, with the sealing plate specifically positioned at the hollow area to provide localized sealing reinforcement only where needed, rather than strengthening the entire backplate structure.
3Reliability
If water vapor enters through the hollow area, then display quality deteriorates due to wrinkles and deformation, but adding sealing structures increases device complexity
Solution Approach 1:
The sealing plate provides an simple thin film solution to seal the hollow area, avoiding complex multi-component sealing systems. This single element effectively prevents water vapor entry and maintains display quality without significantly increasing structural complexity.
Data Source
AI summary
A display module provided by this application includes a backlight module, a display panel, and a sealing structure. The backlight module includes a backplane and a backlight assembly. The backplate includes a bottom wall and side walls provided on side edges of the bottom wall. The bottom wall and the side walls enclose an accommodation space, the bottom wall has a hollow area, and the backlight assembly is disposed in the accommodation space. A sealing structure is connected with the bottom wall and seals the accommodation space, which can prevent water vapor, dust, and other impurities from entering the display module from an edge of the hollow area to cause wrinkle and deformation or damage to a light guide plate or film layers in the display panel.