Display Module Bezel Reduction via Segmented Backboard Retention
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Solution Overview
Problem
Conventional display module designs fail to achieve a sufficient reduction in bezel thickness while maintaining effective fixation and a narrow bezel effect, which is crucial for improving the screen-to-body ratio and visual experience in display devices.
Innovation Solution
The display module incorporates a backboard with side walls forming a mounting groove, where a rubber frame is placed along the perimeter, supporting the display panel vertically, and side walls act as retaining walls horizontally, with optional buffer layers and adhesive layers for enhanced fixation and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If conventional display module structure is used with rubber frame and backboard, then panel fixation is maintained, but bezel thickness cannot be reduced sufficiently
Solution Approach 1:
The backboard is segmented into a bottom plate and multiple side walls that are bent from the bottom plate, creating distinct functional zones: the bottom plate provides base support while the side walls provide horizontal retention. This segmentation allows independent optimization of each component's function to achieve both thin bezel and stable fixation.
Solution Approach 2:
The side walls extend in the vertical dimension from the bottom plate, creating a three-dimensional mounting groove structure. This dimensional transformation allows the side walls to act as retaining walls that prevent panel displacement horizontally while maintaining a compact overall structure with reduced bezel thickness.
2Reliability
If side walls are configured as retaining walls for panel fixation, then horizontal fixation is improved, but structural complexity increases
Solution Approach 1:
The side walls are merged with the bottom plate through bending, forming an integrated one-piece backboard structure. This merging eliminates the need for separate components to connect the bottom plate and side walls, simplifying the overall structure while maintaining effective horizontal retention functionality.
Solution Approach 2:
The backboard structure parameters are optimized by controlling the bending radius, height, and spacing of the side walls. By adjusting these parameters, the structure achieves adequate retention strength without excessive complexity, balancing fixation reliability with structural simplicity.
3Object-affected harmful factors
If spacing is configured between display panel side face and side wall, then shock protection is improved, but bezel thickness increases
Solution Approach 1:
A buffer layer made of flexible cushioning material is placed in the spacing between the display panel side face and the side wall. This thin film structure provides shock absorption and protection against horizontal impacts while occupying minimal space, thus protecting the panel without significantly increasing bezel thickness.
Solution Approach 2:
The buffer layer is pre-installed in the spacing between the panel and side wall to provide beforehand cushioning against potential shocks. This preventive cushioning structure absorbs impact energy before it reaches the display panel, protecting it from damage while maintaining a compact design.
Data Source
AI summary
A display module and a display device including the display module are disclosed, the display module includes a backboard, a rubber frame and a display panel, the backboard includes a bottom plate and side walls provided at the perimeter of the bottom plate; the display panel is provided on a upper surface of the rubber frame, the rubber frame is configured for supporting the display panel in the vertical direction, and a side face, in the vertical direction, of the display panel is configured immediately adjacent to at least one side wall, or a spacing is configured between a side face, in the vertical direction, of the display panel and at least one side wall, in this way, the side walls are configured as retaining walls for the display panel in the horizontal direction; therefore, the bezel thickness is decreased and the effect of narrow bezel can be realized.