Foldable Display Module Support Layer for Crease Reduction
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Solution Overview
Problem
Folding screens in electronic devices are prone to creases, which affect the display effect and can lead to damage over repeated use.
Innovation Solution
A display module with a support layer and rotating shaft mechanism that allows the display panel to switch between states by sliding and moving, using shape portions to distribute stress and prevent direct force on bending areas, thereby reducing crease formation and enhancing durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a folding screen is used to change screen size, then adaptability is improved, but the display panel is prone to creases and damage
Solution Approach 1:
A support layer is introduced as an intermediary component between the display panel and the rotating shaft. This support layer receives and distributes the stress from the rotating shaft, preventing direct force application to the display panel's bending portion, thereby reducing crease formation and damage while enabling screen size changes
2Device complexity
If the display panel is directly connected to the rotating shaft, then device complexity is reduced, but stress concentration damages the display panel
Solution Approach 1:
The support layer serves as a mediator that distributes stress from the rotating shaft across a larger area of the display panel. By positioning the support layer's first shape portion to engage with the rotating shaft's second shape portion, the structure transfers rotational force through the support layer rather than directly to the display panel, preventing stress concentration and damage
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 mechanism prevents wrinkling and deformation of the display panel, maintains display performance, and reduces stress concentration, improving the longevity and usability of the display module.
Implementation Method 1
The rotating shaft is enabled to rotate to drive the first shape portion and the second shape portion engaged with each other to move relative to each other
Data Source
AI summary
A display module includes: a display panel including a display surface and a non-display surface arranged opposite to each other; a support layer arranged on the non-display surface of the display panel, the support layer having a first surface away from the display panel, and at least part of the first surface is provided with a first shape portion arranged in a predetermined direction; and a rotating shaft having a second shape portion in a circumferential direction, the support layer and the display panel arranged around an outer circumference of the rotating shaft, the first shape portion of the first surface engaged with the second shape portion of the rotating shaft.