Display Panel Embedded Patterns Enhance Light Shielding Adhesion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display panels face challenges in achieving strong adhesion between the light shielding layer and the top substrate, which affects the light shielding function and overall display quality.
Innovation Solution
Incorporating embedded patterns on the top substrate beneath the patterned light shielding layer, these patterns provide a roughened surface that enhances adhesion, ensuring the light shielding layer is securely attached and maintains a desirable light shielding function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a smooth top substrate surface is used, then manufacturing is easier, but adhesion between the light shielding layer and top substrate is insufficient
Solution Approach 1:
The embedded patterns are formed on the top substrate surface before the light shielding layer is applied. This preliminary surface modification creates protrusions that will later enhance adhesion when the light shielding layer is deposited over them, resolving the contradiction between ease of manufacture and adhesion strength.
Solution Approach 2:
The embedded patterns create a porous or textured surface structure on the top substrate with controlled protrusions. This increased surface area and roughness provide more contact points for the light shielding layer, significantly improving adhesion without requiring complex manufacturing processes.
2Object-affected harmful factors
If the light shielding layer is disposed on the outer surface of the display panel, then light shielding function is improved, but adhesion to the top substrate becomes difficult to ensure
Solution Approach 1:
The embedded patterns are prepared on the top substrate before the light shielding layer is applied. This preliminary action creates a textured surface that enhances adhesion when the light shielding layer is deposited, ensuring the layer remains securely attached while maintaining its light shielding function on the outer surface.
Solution Approach 2:
The embedded patterns add a vertical dimension to the substrate surface by creating protrusions that extend upward. This three-dimensional surface structure provides mechanical interlocking with the light shielding layer, improving adhesion while allowing the light shielding layer to remain positioned on the outer surface for effective light blocking.
Data Source
Figure 1A
Figure 1B
Figure 2A~2B
AI summary
A display panel according to an embodiment has a first region and a central second region surrounded by the first region. The display panel includes a patterned light shielding layer, and a plurality of embedded patterns. The patterned light shielding layer is disposed on a top surface of a top substrate in the first region. The patterned light shielding layer includes a top portion and a plurality of extending portions extending from the top potion toward the top substrate. Each of the embedded patterns is located between two of the adjacent extending portions and covered by the top portion. A further antireflective layer and an outer hydrophobic material layer may be disposed on the top surface at the second region. The embedded patterns may be made of a same material as the top substrate, and the antireflective layer may be made of an inorganic material.