Display Module Bending Part Stress Distribution
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Solution Overview
Problem
Existing display modules experience stress concentration and local compression issues during assembly, leading to display failures, especially when showing single-color images due to the use of fasteners, which cause irregular stress distribution.
Innovation Solution
The display module design incorporates a bending part in the front frame that disperses stress by connecting through a fastener, with an elastic structure and protrusions to distribute and absorb stress, preventing excessive local compression and image distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a fastener is disposed between the front frame and rear frame to fasten the display panel, then the display panel can be securely fastened, but stress concentration occurs around the fastener causing local compression and stress lines on the display panel
Solution Approach 1:
The bending part is divided into multiple segments along the edge of the display panel, with each segment containing a fastener. This segmentation distributes the fastening function across multiple locations, preventing stress concentration at a single point while maintaining secure fastening of the display panel between the front and rear frames.
Solution Approach 2:
The bending part extends along the edge of the display panel in a linear dimension, transforming the fastening approach from a single-point connection to a distributed linear connection. This dimensional extension allows multiple fasteners to be arranged along the bending part, distributing stress across a larger area and preventing local compression.
2Ease of manufacture
If the display panel is fastened using conventional fasteners, then assembly is simplified, but stress lines occur during display function especially when displaying single-color images
Solution Approach 1:
The bending part acts as an intermediary element between the fastener and the display panel. It provides a flexible connection that absorbs and distributes the stress from the fastener, preventing direct transmission of concentrated stress to the display panel and avoiding stress line formation during image display.
Solution Approach 2:
The bending part changes the mechanical parameters of the fastening system by introducing flexibility and stress distribution characteristics. It transforms the rigid, concentrated stress field into a distributed, flexible stress field, maintaining assembly simplicity while preventing display quality degradation.
3Productivity
If fasteners are used to connect the front frame and rear frame, then the display module can be assembled, but excessive local compression occurs on the display panel affecting normal display
Solution Approach 1:
The bending part is segmented into multiple sections along the display panel edge, allowing stress to be distributed across multiple segments rather than concentrated at a single fastener location. This segmentation maintains assembly efficiency while preventing excessive local compression that would affect display quality.
Solution Approach 2:
The bending part functions as a flexible structural element that can deform to distribute compression forces. This flexibility allows the fastening system to maintain secure assembly while preventing excessive local compression on the display panel, as the bending part absorbs and redistributes the compressive stresses.
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 stress concentration and prevents display panel deformation, ensuring stable image display by uniformly distributing stress and preventing excessive local compression.
Implementation Method 1
an elastic structure is disposed between the first holding part and the display panel; and/or, an elastic structure is disposed between the second holding part and the display panel
Data Source
AI summary
Embodiments of the present disclosure provide a display module and a display device. The display module includes a rear frame, a display panel and a front frame; the front frame includes a first holding part, the rear frame includes a second holding part, and the first holding part is disposed to be opposite to the second holding part along a thickness direction of the display panel; an edge of the display panel is held between the first holding part and the second holding part; the first holding part is provided with a bending part which is bent towards the second holding part; and the first holding part and the second holding part are connected through a fastener disposed in the bending part so as to fasten the display panel.