Display Reflective Sheet Fastener for Wrinkle Prevention
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Solution Overview
Problem
Existing display apparatuses face challenges in efficient assembly, productivity, and uniform quality, particularly in the fastening of reflective sheets, which can lead to wrinkles due to contraction and expansion.
Innovation Solution
A display apparatus design featuring a reflective sheet secured to a rear chassis using a fastener with insertion portions and bending portions to prevent withdrawal, along with a reflective sheet configuration that includes a seating and inclined portions to manage luminance uniformity, and the use of materials like stainless steel or paper for the fastener.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional fastening methods are used for reflective sheets, then assembly can be performed, but assembly efficiency is low and productivity is reduced
Solution Approach 1:
The fastener is designed to be self-fastening through its elastic deformation capability. The elastic portion automatically deforms and locks into the receiving structure without requiring external tools or complex manual operations, enabling rapid assembly while maintaining secure fastening of the reflective sheet to the housing.
2Strength
If reflective sheet is secured firmly, then fastening strength is improved, but wrinkles may form due to contraction and expansion
Solution Approach 1:
The fastening system incorporates elastic deformation as a dynamic adjustment mechanism. The elastic portion can flex and adapt to dimensional changes in the reflective sheet, allowing the sheet to expand and contract without forming permanent wrinkles, while still maintaining secure fastening strength through the elastic locking action.
3Productivity
If manual fastening is used, then flexibility is maintained, but productivity is reduced and quality consistency is poor
Solution Approach 1:
The fastener performs its own fastening action through elastic deformation, eliminating the need for manual manipulation or external tools. This self-fastening capability dramatically increases assembly speed and productivity while the simple elastic structure keeps the device complexity low, achieving both high productivity and structural simplicity.
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
Enhances assembly efficiency, improves productivity, and prevents wrinkles on the reflective sheet, ensuring uniform quality and luminance consistency.
Implementation Method 1
a bending portion bent at a first end of the insertion portion to prevent the insertion portion from being withdrawn from the fixing hole
Implementation Method 2
a reflective sheet on a rear side of the display panel and configured to reflect light toward the display panel
Data Source
AI summary
A display apparatus includes a display panel; a reflective sheet on a rear side of the display panel and configured to reflect light toward the display panel; a rear chassis configured to support the reflective sheet on a rear side of the reflective sheet, the rear chassis including a fixing hole; and a fastener configured to secure the reflective sheet to the rear chassis; wherein the fastener includes: an insertion portion configured to penetrate the reflective sheet and to be inserted into the fixing hole; and a bending portion bent at a first end of the insertion portion to prevent the insertion portion from being withdrawn from the fixing hole.