Display Device Rigid-Bar Latch Structure for Screwless Assembly
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Solution Overview
Problem
The manufacturing process of display devices is lengthy due to numerous fastening parts, and there is a risk of fastening part breakage during assembly or disassembly, which can result in foreign matter contamination and reduced rigidity.
Innovation Solution
A display device design incorporating a rigid bar and auxiliary rigid bars that secure fastening without screws, enhancing rigidity and heat dissipation through a latch system and heat dissipation openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If numerous fastening parts including screws are used to fasten the back cover to the module cover, then the fastening strength is improved, but the manufacturing process becomes lengthy and complex
Solution Approach 1:
The patent combines multiple fastening functions into a single integrated latch mechanism. The latch protrusion on the back cover engages with the receiving portion on the rigid bar, creating a unified fastening system that replaces multiple separate screws and fastening parts, thereby simplifying the manufacturing process while maintaining fastening strength.
Solution Approach 2:
The rigid bar serves multiple functions: it provides structural support, acts as a mounting structure for the latch mechanism, and enables the fastening between the back cover and module cover. This multi-functionality reduces the need for separate components and simplifies the overall assembly process.
2Reliability
If numerous fastening parts including screws are used to fasten the back cover to the module cover, then the fastening reliability is improved, but the risk of fastening part breakage increases
Solution Approach 1:
The patent extracts and eliminates the screws and other fragile fastening parts from the assembly process. By using a latch mechanism that engages with the rigid bar, the design removes the harmful factor of breakable fastening parts while maintaining reliable fastening through the latch protrusion and receiving portion engagement.
Solution Approach 2:
The rigid bar is pre-installed on the module cover to provide a stable mounting structure for the latch mechanism. This beforehand preparation ensures that the fastening system has sufficient structural support to prevent breakage during assembly and operation, cushioning against the harmful effect of fastening part failure.
3Productivity
If broken fastening parts remain as foreign matters in the module cover, then the manufacturing process is simplified, but the contamination risk increases
Solution Approach 1:
The patent removes the source of foreign matter by eliminating breakable fastening parts like screws from the design. The latch mechanism uses a protrusion that engages with a receiving portion, a design that does not produce broken fragments, thereby preventing foreign matter contamination while maintaining assembly efficiency.
4Stability of the object's composition
If a rigid bar is added to enhance rigidity, then the structural rigidity is improved, but the device complexity increases
Solution Approach 1:
The rigid bar is designed to serve multiple purposes: it provides structural rigidity to the display device, acts as a mounting structure for the latch mechanism, and enables the fastening function. By combining these functions into a single component, the design enhances rigidity without proportionally increasing device complexity.
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
Simplifies assembly, prevents fastening part breakage, and increases rigidity while effectively dissipating heat, thereby improving manufacturing efficiency and device stability.
Implementation Method 1
The back cover may include a plurality of heat dissipation openings formed in the first lateral wall
Data Source
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AI summary
A display device including a display panel; a module cover at a rear of the display panel; a rigid bar coupled with a coupling portion on a rear surface of the module cover, the rigid bar elongated along a side of the display panel; and a back cover at a rear of the module cover and covering the rigid bar. Further, the rigid bar includes a fastening plate spaced apart from the coupling portion of the module cover; a lateral plate bent toward the module cover from the fastening plate; and at least one first receiving portion formed on the lateral plate. In addition, the back cover includes an outer surface facing a rear of the back cover; an inner surface facing the module cover; and at least one first latch protruding from the inner surface and configured to be accommodated in the first receiving portion of the rigid bar.