Display Device Outer Film With Conductive Anti-Reflection Mesh
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Solution Overview
Problem
Existing display devices face issues with electrostatic phenomena and external light interference, which affect electrical reliability and visibility.
Innovation Solution
Incorporation of an anti-electrostatic pattern in a mesh pattern with conductive and anti-reflection layers on the outer film of the display device, connected to a connection line to discharge electrostatic signals and reduce external light reflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an anti-electrostatic pattern is added to prevent electrostatic discharge, then electrical reliability is improved, but device complexity increases
Solution Approach 1:
The patent combines the anti-electrostatic function and anti-reflection function into a single integrated pattern layer. The anti-electrostatic pattern is formed using the same conductive material and manufacturing process as the anti-reflection pattern, merging two protective functions into one structural element rather than adding separate layers for each function.
Solution Approach 2:
The conductive pattern serves multiple functions simultaneously: it acts as an anti-electrostatic discharge path, provides anti-reflection properties through its geometric design, and maintains optical transparency. This multi-functional design eliminates the need for separate dedicated anti-electrostatic layers.
2Illumination intensity
If an anti-reflection pattern is added to reduce external light reflection, then visibility is improved, but device complexity increases
Solution Approach 1:
The patent combines the anti-electrostatic function and anti-reflection function into a single integrated pattern layer. The anti-electrostatic pattern is formed using the same conductive material and manufacturing process as the anti-reflection pattern, merging two protective functions into one structural element rather than adding separate layers for each function.
3Illumination intensity
If the anti-electrostatic pattern line width is reduced to less than 10 μm to improve visibility, then external light reflection is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The patent specifies precise parameter ranges for the anti-electrostatic pattern, including line width of less than 10 μm, spacing between lines, and pattern geometry. These parameter changes optimize the balance between electrostatic protection effectiveness and visual appearance, reducing reflection while maintaining manufacturability through defined tolerances.
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
Improves electrical reliability and visibility by preventing electrostatic discharge and reducing external light reflection, enhancing the overall performance of the display device.
Implementation Method 1
the anti-electrostatic pattern may be electrically connected to a connection line disposed in the non-display area such that an electrostatic signal may be moved to outside of the display area and the non-display area
Implementation Method 2
The anti-reflection pattern may include at least one of graphite, carbon black, black pigment, and black dye. The anti-reflection pattern may have a reflexibility of less than about 30%.
Data Source
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AI summary
A display device includes a display element part disposed on a substrate, the display element part including a light emitting element, and an upper film layer disposed on the display element part, the upper film layer including an anti-electrostatic pattern. The anti-electrostatic pattern includes a conductive pattern and an anti-reflection pattern, and the conductive pattern and the anti-reflection pattern overlap each other.