Display Protection Layer Molding for Heat and EM Shielding
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Solution Overview
Problem
Existing display apparatuses face challenges in efficiently integrating multiple protective functions into a single layer while maintaining reliability and process efficiency.
Innovation Solution
A display apparatus with a single coating layer below the display panel, comprising a molding unit with a frame and plates that define a molding space, where a first plate moves perpendicular to the frame surfaces, allowing for the formation of a protection layer with integrated functions such as heat dissipation and impact resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple functional layers are laminated to form a protection layer, then various protective functions (impact resistance, heat dissipation, electromagnetic wave blocking) are achieved, but the structure becomes complex and the thickness increases
Solution Approach 1:
The patent combines multiple protective functions (impact resistance, heat dissipation, electromagnetic wave blocking) into a single coating layer formed by screen printing, eliminating the need for multiple laminated functional layers. The coating layer includes functional particles that provide heat dissipation and electromagnetic wave blocking capabilities while the resin matrix provides impact resistance, achieving multi-functionality in a single integrated structure.
Solution Approach 2:
The coating layer is designed to perform multiple protective functions simultaneously: it provides impact resistance through the resin matrix, heat dissipation through thermally conductive particles, and electromagnetic wave blocking through conductive particles. This universal protective layer replaces multiple specialized layers, reducing structural complexity and overall thickness.
2Adaptability or versatility
If multiple functional layers are laminated to form a protection layer, then various protective functions are achieved, but the manufacturing process becomes less efficient
Solution Approach 1:
The patent merges multiple manufacturing steps into a single screen printing process. The coating slurry containing resin, functional particles, and solvents is printed directly onto the display panel in one operation, followed by a single drying/curing step. This eliminates the need for separate lamination, alignment, and bonding processes required for multi-layer structures, significantly improving manufacturing efficiency.
3Productivity
If a single coating layer is used instead of multiple laminated layers, then process efficiency is improved and thickness is reduced, but the reliability of achieving all protective functions may be compromised
Solution Approach 1:
The coating layer incorporates different types of functional particles (thermally conductive particles for heat dissipation, conductive particles for electromagnetic wave blocking) distributed within the resin matrix. Each particle type provides specific local functionality, ensuring that all protective functions are reliably achieved within the single-layer structure through localized material properties.
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
The solution enhances the reliability and process efficiency of display apparatus manufacturing by providing a single-layered protection layer that supports the display panel, dissipates heat, and blocks electromagnetic waves, while reducing thickness and simplifying components.
Implementation Method 1
The protection layer protects the display panel against external environment by preventing the display panel from being deformed by an external impact and effectively dissipating heat generated in the display panel.
Implementation Method 2
a second type of particles serving as electromagnetic wave blocking particles
Data Source
AI summary
An apparatus for manufacturing a display apparatus includes: a molding unit including a frame including a first surface and a second surface opposite to the first surface and in which a mask opening passing from the second surface to the first surface is defined; and a plate disposed adjacent to the first surface of the frame to define a molding space with the frame. The plate includes: a first plate which is disposed in the mask opening and in which a plurality of holes are defined; and a second plate having a plate shape and disposed on the first surface of the frame to overlap at least the plurality of holes on a plane, and the first plate moves in a direction perpendicular to each of the first surface and the second surface in a space between the first surface and the second surface of the frame.