AVN LCD Module Frame Rim Holding Mechanism
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Solution Overview
Problem
Existing AVN system LCD assemblies in vehicles are prone to rim separation and floating during collisions due to inadequate support, leading to user inconvenience and potential accidents.
Innovation Solution
A module frame with through holes and holding ends is used to secure the LCD assembly, ensuring the rim is held in place by the front panel, even during collisions, with a flat type installation that maintains the LCD assembly's parallel alignment to the front panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a flat type installation is adopted with no supporting device on the front side of the LCD assembly, then the front side of the LCD assembly can be made parallel to the front panel, but the rim of the LCD assembly becomes vulnerable to separation and floating during collisions
Solution Approach 1:
A rim holding member is introduced as an intermediary component between the LCD assembly rim and the front panel. This holding member extends from the front panel to engage with the rim of the LCD assembly, providing mediating support that prevents rim separation while preserving the flat parallel installation configuration.
2Reliability
If the LCD assembly is mounted with a close supporting end on the front panel, then the LCD assembly can be prevented from separation, but the rim portion of the front touch area is covered and the total usable area is decreased
Solution Approach 1:
The supporting function is extracted from the front panel surface and transferred to a dedicated rim holding member. This allows the support structure to be positioned at the rim edge rather than covering the front touch area, thereby maintaining full usability of the display surface while ensuring secure attachment.
3Ease of manufacture
If the front side of the LCD assembly is disposed closer to the front side of the vehicle, then the LCD assembly can be mounted on the center fascia panel, but a relatively large step is created between the LCD assembly and front panel causing user inconvenience
Solution Approach 1:
The solution transitions from a vertical height adjustment approach to a horizontal positioning approach. By using the rim holding member to extend horizontally from the front panel to secure the LCD assembly rim, the system achieves proper alignment and eliminates the problematic step without compromising the mounting capability on the center fascia panel.
Data Source
AI summary
An apparatus for supporting a flat liquid-crystal display (LCD) of an audio video navigation (AVN) system of a vehicle includes a module frame including a first through hole formed at a central portion such that an LCD assembly is disposed therein and second through holes formed on both rim portions to expose AVN system manipulation buttons of an AVN system manipulation panel. The LCD assembly is installed within the first through hole of the module frame to be held therein when a front collision impact is applied. A front panel is assembled to a center fascia panel to lock ends of the rim of the module frame and to be parallel to the front side of the LCD assembly.