Vehicle Display Assembly With Edge-Web Bonding for Vibration Isolation
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Solution Overview
Problem
Existing display devices in vehicles face stability issues due to mechanical stresses when fixedly adhered to uneven surfaces, leading to optical abnormalities and potential damage from vibrations during vehicle operation.
Innovation Solution
A display device design featuring a display with a cover screen and a decorative frame connected to the edge of the cover screen, where the rear housing shell has a protruding edge web that is bonded to the decorative frame using a transparent adhesive, creating an air gap and avoiding direct contact between the display and the housing shell, thus providing stability and compensating for surface irregularities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the display is fixedly adhered to the rear wall using adhesive tapes, then the display is securely mounted, but mechanical stresses occur on uneven surfaces causing optical abnormalities and potential damage
Solution Approach 1:
The patent introduces a rear housing shell with an edge web as an intermediary element between the display and the mounting surface. This edge web acts as a mediator that distributes mechanical stresses and prevents direct contact between the display and uneven surfaces, thereby eliminating optical abnormalities while maintaining secure mounting through adhesive bonding of the edge web to the decorative frame.
Solution Approach 2:
The patent transitions from two-dimensional planar bonding of the display to the rear wall to a three-dimensional configuration where the edge web protrudes from the rear wall and bonds to the decorative frame. This dimensional change creates an air gap that isolates the display from mechanical stresses while maintaining secure mounting through the extended bonding structure.
2Reliability
If the rear wall is made planar to accommodate adhesive bonding, then the display can be mounted stably, but the design loses flexibility for curved surfaces and aesthetic variations
Solution Approach 1:
The patent segments the mounting structure into distinct functional elements: the rear wall, the protruding edge web, and the decorative frame. This segmentation allows each component to be optimized independently - the rear wall can be planar for stable adhesive bonding while the edge web and decorative frame can accommodate curved surfaces and aesthetic variations, thereby maintaining both mounting stability and design flexibility.
3Device complexity
If the display is directly bonded to the rear wall, then the structure is simple, but the display is vulnerable to vibrations and mechanical stresses during vehicle operation
Solution Approach 1:
The patent implements beforehand cushioning by creating an air gap between the display and the rear wall through the protruding edge web structure. This pre-established separation cushions the display against vibrations and mechanical stresses that occur during vehicle operation, protecting the display without requiring complex active damping systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enhances the stability and durability of the display device by preventing mechanical stresses and allowing for tolerance compensation, ensuring the display remains secure and functional even under vehicle vibrations, while maintaining optical clarity and flexibility for curved surfaces.
Implementation Method 1
The free end of the edge web is connected to the decorative frame by means of the adhesive
Data Source
AI summary
The display device (12) for a vehicle is provided with a display (18) having a display surface (20) on a front side and having a rear side facing away from the latter and a cover screen (14) arranged in front of the display surface (20). Furthermore, the display device (12) has a decorative frame (16) which is connected to the edge of the cover screen (14) and protrudes on all sides over the edge of the display (18), and a rear-side housing shell (17) which has a rear wall (36) with an edge web (38) rising from the latter. The rear wall (36) of the housing shell (17) is arranged at a distance from the rear side of the display (18), wherein the edge web (38) of the housing shell (17) is connected to the decorative frame (16) by means of an adhesive.