Elastic Piece Circuit Board Fixing for LCD Assembly
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Solution Overview
Problem
Existing methods for fixing a circuit board in liquid crystal displays are cumbersome, costly, and require numerous parts, leading to complex assembly processes and increased production time.
Innovation Solution
A liquid crystal display design featuring an elastic piece with bending edges and hooks that securely clip the circuit board to the back plate, reducing the need for additional components and simplifying assembly, while providing effective grounding and vibration resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws are employed to fix the circuit board, then the circuit board can be securely fixed and grounded, but the assembly process becomes time-consuming and costly
Solution Approach 1:
The patent combines multiple functions into a single elastic piece: fixing (clipping the circuit board to the back plate), grounding (providing electrical connection), and positioning (locating the circuit board at the correct position). This eliminates the need for separate screws and electrical foam components, thereby improving assembly efficiency while maintaining reliability
Solution Approach 2:
The elastic piece serves multiple purposes simultaneously: it acts as a mechanical fastener, an electrical conductor for grounding, and a positioning element. This multi-functionality reduces the total number of components needed and simplifies the assembly process
2Reliability
If more clip components and electrical foams are increased for fixing, then the circuit board can be fixed and grounded, but the number of parts increases and assembly becomes more complex
Solution Approach 1:
The patent merges the functions of clip components and electrical foams into a single integrated elastic piece. The elastic piece provides both mechanical fixing and electrical grounding through its conductive material composition, eliminating the need for separate components and reducing overall device complexity
Solution Approach 2:
The elastic piece is designed to perform multiple functions: mechanical support, electrical grounding, and positioning. This universal component replaces what would traditionally require multiple separate parts, thereby reducing the number of components while maintaining all necessary functions
3Reliability
If only foams are employed to fix the circuit board, then the circuit board can be fixed and grounded, but thicker and more foams are needed
Solution Approach 1:
The patent changes the material parameter from foam to elastic piece made of conductive material. This parameter change allows for thinner profiles while maintaining both fixing and grounding capabilities, as the elastic piece provides structural support through its elastic properties and electrical connection through its conductive material composition
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
This design results in a simpler structure with fewer parts, faster assembly, lower costs, and enhanced grounding and vibration resistance for the circuit board.
Implementation Method 1
the elastic piece including at least one supporting portion... the elastic piece employed to contact with a front frame or a back housing for grounding... to cushion an outside force of impact on the circuit board and peripheral parts
Data Source
AI summary
A liquid crystal display and a method for fixing a circuit board thereof are provided in the present invention. The liquid crystal display includes: a back plate having a back plate body, at least one elastic piece disposed at the back plate body, the elastic piece including at least one supporting portion; a circuit board having a grounding area, the circuit board located on the outside of the back plate body, and the grounding area contacting with the supporting portion of the elastic piece; a liquid crystal display panel electrically connected with the circuit board; and a plastic housing having a plurality of sidewalls and a top wall, the circuit board located on the inside of the sidewall, the sidewall having at least one hook, and the hook engaged with the elastic piece for elastically clipping and fixing the circuit board. The present invention has advantages of few parts, simple structure and convenient for assembly.