Display Device Rear Fastening Bezel Reduction
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Solution Overview
Problem
The existing assembly methods for display devices result in an increased bezel size due to exposed screw connections, making the device thicker and inconvenient to assemble, as screws are typically fastened from the side rather than the rear, necessitating a design that covers the screws with a back cover.
Innovation Solution
The display device design features a case top with a first portion covering the display panel's edge and a second portion covering the cover bottom's side wall, with screws fastened in the same direction, utilizing a first coupling portion with ribs and a flange for structural stability and reduced bezel size, and stopper structures for easy assembly and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If screws are fastened from the side to allow easy assembly, then assembly ease is improved, but the bezel size increases to hide the screw connection area
Solution Approach 1:
The patent inverts the conventional screw fastening direction by changing from side-fastening to rear-fastening. The screw connection portions are positioned on the rear surface of the case bottom, allowing screws to be fastened from the rear rather than from the side. This inversion enables the screw connections to be hidden from the front view, reducing the visible bezel size while maintaining assembly ease through a standardized rear-access approach.
Solution Approach 2:
The patent extracts the screw connection function from the side surface and relocates it to the rear surface. By removing the screw connection portions from the lateral sides and positioning them on the rear surface instead, the design eliminates the need for thick bezels to conceal exposed screws. The extraction of this functional element allows for a thinner, more aesthetically pleasing front bezel while the rear surface provides adequate space for the screw connections.
2Ease of manufacture
If screws are exposed on the side, then assembly is simplified, but the device thickness increases to cover the screws with the back cover
Solution Approach 1:
The patent applies inversion by reversing the screw fastening direction from lateral to rearward. The screw connection portions are positioned on the rear surface of the case bottom, allowing screws to be fastened from the rear rather than from the side. This eliminates the need for the back cover to extend forward to cover exposed side screws, thereby reducing the overall device thickness while maintaining assembly simplicity.
Solution Approach 2:
The patent extracts the screw connection function from the side surface and relocates it to the rear surface. By removing the screw connection portions from the lateral sides and positioning them on the rear surface instead, the design eliminates the need for thick side structures to cover exposed screws. The extraction of this functional element allows for a thinner device profile.
3Ease of manufacture
If the ends of case top and back cover are engaged from the side, then assembly is enabled, but space remains between the case top and back cover in the side
Solution Approach 1:
The patent inverts the engagement approach by moving from side-engagement to rear-engagement. The screw connection portions are positioned on the rear surface of the case bottom, enabling the back cover to be securely fastened to the case top through rearward screwing. This rearward engagement eliminates the gaps that would otherwise exist between the case top and back cover at the sides, creating a seamless appearance while maintaining assembly capability.
Data Source
Figure 1(a)~1(b)
Figure 2(a)~2(b)
Figure 3~4
AI summary
A display device according to an embodiment comprises: a cover bottom having an optical sheet disposed in a containing space delimited by a side wall; a display panel disposed above the optical sheet; a guide panel positioned closer to the inside than the side wall of the cover bottom in a lateral direction and disposed so as to surround the periphery of the display panel such that the display panel and the optical sheet are spaced part from each other; and a case top covering the front edge periphery of the display panel and the side wall of the cover bottom. The case top is configured to further comprise a first coupling portion provided between the side wall of the cover bottom and the guide panel. The cover bottom is assembled with the case top by a first fastener that is fastened to the first coupling portion in the forward direction.