Folding Display Crease Reduction via Elastic Slider Mechanism
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Solution Overview
Problem
Existing folding display devices suffer from obvious creases in the folding area, which negatively impact user experience due to increased use time.
Innovation Solution
A display device design featuring rotating shafts, sliders, and elastic bodies that apply forces to the display panel, utilizing adhesive members with varying elastic moduli to minimize creases by stretching the panel away from the folding axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display panel is folded repeatedly, then the folding function is achieved, but the crease becomes more obvious over time
Solution Approach 1:
The first and second elastic bodies pre-applied elastic forces to the first and second slide bodies respectively, creating a preliminary counteracting force against the crease formation. This pre-action prevents the crease from becoming obvious by continuously pushing the display panel away from the rotating shaft, opposing the folding-induced deformation before it fully manifests.
Solution Approach 2:
The patent utilizes the elastic properties of the elastic bodies and the differential elastic moduli of the adhesive members to dynamically adjust the support characteristics. The elastic bodies deform elastically under folding stress, changing their support force parameters to counteract the crease formation while maintaining the folding function.
2Shape
If the display panel is stretched to reduce creases, then crease visibility is reduced, but the adhesive member may detach
Solution Approach 1:
The patent applies different elastic moduli to different adhesive members based on their local functional requirements. The first adhesive member (connecting display panel to rotating shaft) has a lower elastic modulus to allow deformation and reduce stress concentration, while the second adhesive member (connecting slide bodies to display panel) has a higher elastic modulus to maintain strong bonding under stretching forces. This localized differentiation of material properties resolves the contradiction between stretching and bonding reliability.
Solution Approach 2:
The system employs composite adhesive structures with members of different elastic moduli working together. The combination of a more compliant first adhesive member and a stiffer second adhesive member creates a composite bonding system that can simultaneously accommodate stretching motions and maintain reliable attachment, preventing detachment while reducing creases.
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
The solution effectively reduces creases in the folding area, enhancing both the appearance and display characteristics of the device by applying elastic forces through the sliders and adhesive members, ensuring the panel is consistently supported and stretched.
Implementation Method 1
a first elastic body for applying an elastic force to the first slide body in a direction away from the rotating shaft
Implementation Method 2
a second elastic body for applying an elastic force to the second slide body in the direction away from the rotating shaft
Implementation Method 3
the display panel is connected to the first body and the second body by a first adhesive member, and the display panel is connected to the first slide body and the second slide body by a second adhesive member
Data Source
AI summary
The present application provides a display device. The display device includes a first body and a second body rotatably connected to a side of the rotating shaft respectively, a first slider connected to the first body, and a second slider connected to the second body. The first slider includes a first slide body, and a first elastic body for applying an elastic force to the first slide body in a direction away from the rotating shaft. The second slider includes a second slide body, and a second elastic body for applying an elastic force to the second slide body in a direction away from the rotating shaft.