Optical Sheet Support Protrusion Design for Display Stability
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Solution Overview
Problem
Existing display apparatuses face instability in supporting optical sheets, which can lead to improper light distribution and image quality issues due to inadequate support mechanisms.
Innovation Solution
A display apparatus design featuring a middle mold with a support protrusion that includes a sheet support portion and a locking portion, where the central portion of the front end has a larger up-down width than the support slot, and the opposite sides have a smaller width, allowing secure insertion and preventing the optical sheet from separating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple support structure is used, then device complexity is reduced, but stability of optical sheet support deteriorates
Solution Approach 1:
The support protrusion is divided into distinct functional segments: a sheet support portion for holding the optical sheet and a locking portion for securing it. This segmentation allows each part to perform its specific function efficiently, improving stability without requiring a completely complex support structure.
Solution Approach 2:
The support protrusion features localized width variations: the central portion has a larger up-down width for stable support, while opposite sides have smaller widths for locking engagement. This local quality differentiation enables the single component to provide both support and locking functions, enhancing reliability without overall structural complexity.
2Reliability
If the support protrusion width is uniformly large, then optical sheet support stability is improved, but ease of insertion through support slot deteriorates
Solution Approach 1:
The support protrusion employs asymmetric width distribution: the central portion maintains a larger width for stability, while the sides are narrowed to create gaps. This asymmetric design allows the protrusion to be inserted easily through the support slot while maintaining stable support capability.
Solution Approach 2:
The solution addresses the width conflict by introducing dimensional variation at different locations of the support protrusion. By modifying the cross-sectional width distribution (central vs. side portions), the design enables both easy insertion and stable support without compromising either requirement.
3Manufacturing precision
If the support protrusion fits tightly in the support slot, then optical sheet positioning precision is improved, but ease of operation deteriorates
Solution Approach 1:
The support protrusion is segmented into a support region (central portion) and locking regions (side portions). The support region provides tight fit for positioning precision, while the locking regions with smaller widths facilitate easier installation by creating insertion gaps.
Solution Approach 2:
Different local regions of the support protrusion have different width characteristics: the central support region has larger width for precise positioning, while the side locking regions have smaller widths for ease of installation. This local quality variation resolves the contradiction between precision and operability.
Data Source
AI summary
The present disclosure relates to a display apparatus including a display panel, a backlight disposed in the rear of the display panel, an optical sheet disposed between the display panel and the backlight and on which support slots are provided, and a middle mold including support protrusions to support the optical sheet. The support protrusion is formed such that a central portion of a front surface thereof has an updown width larger than that of the support slot and opposite sides of the front surface thereof have an up-down width smaller than that of the support slot, so that the front end of the support protrusion easily passes through the support slot and the optical sheet is prevented from being separated from the support protrusion.