Signboard Light Source Mounting for Vibration Stability
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Solution Overview
Problem
The existing display apparatus faces challenges in manufacturing efficiency and cost due to the need for custom frames when using LED light sources of different sizes, which increases assembly time and component costs, and is prone to positional displacements and damage from vibrations and shocks.
Innovation Solution
The display apparatus features a light source mount system where strip-like light sources are pre-mounted on separate LED mounts, which are then attached to the main body and edge plates, allowing for easy assembly and reducing the need for new substrates, with movement restricting steps and holding ribs to prevent damage and improve stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If custom frames are fabricated for each LED light source size, then the display apparatus can accommodate different light source specifications, but the manufacturing cost and assembly time increase significantly
Solution Approach 1:
The frame is divided into a main body and separate edge plates that can be independently configured. The edge plates are designed with standardized mounting portions that can accommodate different LED light source sizes without requiring custom frame fabrication, thus maintaining versatility while improving manufacturing efficiency
Solution Approach 2:
The edge plates are designed as universal components with standardized structures that can work with various LED light source specifications. The mounting portions on the edge plates provide adaptable support for different light source sizes, eliminating the need for custom frames for each application
2Ease of manufacture
If components are inserted from end portions during assembly, then the assembly process is simplified, but the LED light sources are prone to positional displacements and damage from vibrations and shocks
Solution Approach 1:
The LED light sources are pre-mounted on the edge plates before the edge plates are attached to the main body. This preliminary mounting action allows for precise positioning and secure fixation of the light sources, preventing positional displacements and damage from vibrations while maintaining assembly simplicity
Solution Approach 2:
The edge plates serve as intermediary components that hold the LED light sources. By mounting light sources on edge plates first and then attaching the edge plates to the main body, the system provides both easy assembly and reliable positional stability, as the edge plates act as protective mediators
3Strength
If the frame is fabricated as a single integrated structure, then structural strength is improved, but the ability to accommodate different LED light source sizes is reduced
Solution Approach 1:
The frame is segmented into a main body and separate edge plates. This segmentation maintains the structural integrity of the main body while allowing the edge plates to be configured for different LED light source sizes, thus preserving both strength and adaptability
Solution Approach 2:
The edge plates are designed as adaptable components that can be configured dynamically to match different LED light source specifications. This dynamic configuration capability allows the overall frame structure to maintain its strength while adapting to various light source requirements
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 approach enables faster and more cost-effective manufacturing of display apparatuses using various strip-like light sources, reduces the risk of damage from vibrations, and enhances the appearance and functionality by maintaining the light guide plate and surface plate alignment.
Implementation Method 1
light emitted from a strip-like light source disposed at an edge in the width direction of a substrate, which is shaped as a rectangular plate when viewed from in front, is guided to every position in the width direction by a light guide plate
Implementation Method 2
light that is incident at an angle on the end surfaces of the light guide plate is evenly guided across the entire area of the light guide plate and emitted from the light guide plate. Here, the light emitted toward the rear of the light guide plate is reflected by the reflective surface on the mounting frame
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A display apparatus 1 includes: a substrate 2; a strip-like light source 3 placed at ends in a width direction of the substrate 2; and a light guide plate 4 mounted in front of the substrate 2. A display medium is disposed in front of the light guide plate 4. The substrate 2 includes a main body 11 and a pair of edge plates 12 that cover the front surface of both ends in the width direction. Light source mounts 20 formed separately to the substrate 2 and the edge plates 12 have a strip-like light source 3 mounted thereupon and are fixed inside the insertion channels 13. The light guide plate 4 is mounted with both ends inserted inside the insertion channels 13 so that light from the strip-like light source 3 is incident from end surfaces of the light guide plate 4.