Anti-reflective Layer Lateral Surface Area for Display Panel Stress Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing manufacturing process for display devices often results in defects due to uneven pressure application during the attachment of the anti-reflective layer, leading to potential damage to the display panel and reduced productivity.
Innovation Solution
The proposed solution involves a display device structure with an anti-reflective layer that includes chamfered corners and inclined surfaces, which are designed to distribute pressure evenly by extending into a bending area and being positioned adjacent to a passivation layer, thereby minimizing stress on the substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If constant pressure is applied to the anti-reflective layer during attachment, then the attachment process is simple, but uneven pressure distribution causes display panel damage and reduces productivity
Solution Approach 1:
The anti-reflective layer is designed with different area characteristics at different locations - the lateral surface area is intentionally made larger than the virtual surface area to create localized pressure redistribution. This non-uniform geometric structure ensures that pressure is evenly distributed across the attachment interface, preventing display panel damage while maintaining attachment simplicity
Solution Approach 2:
The patent changes the geometric parameters of the anti-reflective layer by creating a structure where the lateral surface area exceeds the virtual surface area. This parameter modification alters the pressure distribution characteristics during attachment, enabling constant pressure application without causing uneven stress concentration that would damage the display panel
2Ease of manufacture
If constant pressure is applied to the anti-reflective layer during attachment, then the attachment process is simple, but display panel damage occurs reducing quality
Solution Approach 1:
The anti-reflective layer incorporates a specific geometric configuration where the lateral surface area is larger than the virtual surface area. This local geometric quality change creates favorable pressure distribution characteristics at the attachment interface, preventing stress concentration and display panel damage while maintaining the simplicity of the attachment process
Solution Approach 2:
The enlarged lateral surface area of the anti-reflective layer acts as a pre-designed pressure distribution mechanism that cushions against uneven stress during attachment. This structural feature is built in advance to prevent display panel damage before the damage can occur during the manufacturing process
Data Source
AI summary
An exemplary embodiment of the present disclosure provides a display device including: a substrate configured to include a display area and a peripheral area positioned at an outer circumference of the display area; a display member configured to be positioned on the substrate; an anti-reflective layer configured to be positioned on the display member; and a passivation layer configured to be positioned in a peripheral area of the substrate and to be adjacent to one end portion of the anti-reflective layer, wherein the anti-reflective layer may include a plurality of first lateral surfaces, and an area of one of the plurality of first lateral surfaces contacting the passivation layer may be larger than that of the anti-reflective layer cut in a direction parallel to one end portion of the anti-reflective layer.