Reflective Sheet Beading Pattern for Display Rigidity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The reflective sheets in display apparatuses face deformation issues due to increased size and reduced thickness, leading to non-uniform light distribution and image stains, especially with the presence of reinforcing beads on the bottom chassis.
Innovation Solution
A reflective sheet with a beading pattern protruding from its surface, featuring various geometric shapes and through holes, is designed to enhance rigidity and maintain light reflection efficiency, aligning with the reinforcing beads on the bottom chassis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the reflective sheet is made larger and thinner to match the trend of display apparatuses, then the size and thickness requirements are met, but deformation of the reflective sheet occurs leading to position shift and image stain phenomenon
Solution Approach 1:
The reflective sheet is segmented by forming a beading pattern that divides the continuous sheet into multiple sections. This segmentation creates structural compartments that resist deformation while maintaining the overall thin profile of the sheet, solving the contradiction between thinness and rigidity.
Solution Approach 2:
The beading pattern adds a third dimension to the otherwise two-dimensional reflective sheet by creating protrusions and recesses. This dimensional change introduces structural rigidity without increasing the planar footprint or compromising the thinness requirement.
2Length of stationary object
If the reflective sheet is made larger and thinner, then the display apparatus can be larger and slimmer, but the reflective sheet sags into reinforcing beads causing insufficient light reflection
Solution Approach 1:
The beading pattern segments the reflective sheet into multiple rigid sections that maintain their flatness independently. This prevents the sheet from sagging into the reinforcing beads on the bottom chassis, ensuring stable light reflection across the entire large surface area.
Solution Approach 2:
The beading pattern creates local structural variations that provide different mechanical properties in different areas. The beaded regions provide reinforcement against sagging while the flat regions maintain optimal light reflection characteristics, resolving the conflict between large size and flatness stability.
3Ease of manufacture
If the reflective sheet deforms due to reduced thickness, then manufacturing simplicity is maintained, but light distribution becomes non-uniform causing image stains
Solution Approach 1:
The beading pattern is formed using conventional molding techniques that maintain manufacturing simplicity while simultaneously providing the structural rigidity needed to prevent deformation. This segmentation approach achieves both ease of manufacture and flatness uniformity without requiring complex manufacturing 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
The enhanced rigidity of the reflective sheet prevents sagging and improves light distribution, reducing image stains and maintaining image quality in display apparatuses.
Implementation Method 1
a reflective sheet for reflecting light emitted from a light source toward the display panel
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A reflective sheet 100 of a display apparatus includes a sheet 101 configured to reflect light; and a beading pattern 103 protruding from a surface of the sheet.