Unified Backlight Frame Eliminates Lamp Holder Noise
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Solution Overview
Problem
The existing backlight assemblies for LCD devices experience noise generation due to vibrations caused by electromagnetic forces, which is exacerbated by the use of ribs to secure lamp holders, leading to increased assembly time and cost.
Innovation Solution
A unified lower frame is formed with the lamp holders, eliminating the need for external ribs by integrating movement preventing members within the lower frame during the molding process, thus securing the lamp holders without additional elements and simplifying the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If ribs are protruded from side frames to fix lamp holders, then vibration and noise are reduced, but additional processing time and cost are required
Solution Approach 1:
The lower frame is formed to be unified with the lamp holders in a single integrated structure, eliminating the need for separate ribs and additional assembly steps. This merging of components achieves the vibration damping function while simplifying the assembly process and reducing manufacturing time.
Solution Approach 2:
The unified lower frame structure serves multiple functions simultaneously: it provides mechanical support, dampens vibrations, and eliminates the need for separate ribs. This multi-functionality reduces the overall complexity of the assembly while maintaining noise reduction benefits.
2Object-affected harmful factors
If pads are interposed between external electrodes and ribs to reduce gap, then noise is reduced, but assembly time and cost increase
Solution Approach 1:
The lower frame and lamp holders are merged into a single unified structure, eliminating the need for separate pads and ribs. This integration removes the complexity of multi-component assembly while maintaining the noise reduction function through the unified structure's inherent vibration damping properties.
3Stability of the object's composition
If ribs are used to fix lamp holders, then vibration is reduced, but additional components and processing are required
Solution Approach 1:
The lower frame and lamp holders are combined into a single integrated component, providing stable fixing without requiring separate ribs. This merging maintains the stability function while significantly simplifying manufacturing and assembly processes.
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 solution reduces noise generation and simplifies the assembly process by eliminating the need for additional components, providing a secure fixing force between the lower frame and lamp holders while maintaining the assembly's structural integrity.
Implementation Method 1
a lower frame formed to partially cover the lamp holders such that the lower frame is formed in one unified body with the lamp holders
Implementation Method 2
To prevent the lamps from vibrating due to the AC voltages and to prevent the lamp holders from vibrating due to an electromagnetic force generated in the lamps
Data Source
AI summary
A backlight assembly includes: lamps; lamp holders each holding at least one of opposite ends of a corresponding one of the lamps, the lamp holders being electrically connected with external electrodes of the lamps; and a lower frame formed to partially cover the lamp holders such that the lower frame is formed in one unified body with the lamp holders.