Window Deposition Apparatus Seating Part Design
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Solution Overview
Problem
Existing window deposition methods often result in deposition material being inadvertently applied to the rear surface of windows, leading to defects and reduced adhesion between the window and adhesive layers in display devices.
Innovation Solution
A window deposition apparatus with a seating part having a specific inner surface design that includes a first inner surface, a second inner surface, a seating surface, an inducing surface, and a guide surface, which guides the deposition material to be deposited only on the front surface of the window, preventing it from reaching the rear surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If deposition material is sprayed toward a window disposed on a seating part, then the deposition material can be applied to the front surface of the window, but the deposition material may also be deposited on the rear surface of the window causing defects
Solution Approach 1:
The inner surface of the seating part is segmented into multiple functional surfaces: a first inner surface that defines the open portion, a second inner surface disposed on the first inner surface, a seating surface connecting them, an inducing surface connecting the first inner surface to the bottom surface, and a guide surface connecting the second inner surface to the top surface. This segmentation creates a stepped configuration that directs deposition material onto the front surface while preventing it from reaching the rear surface.
Solution Approach 2:
Different regions of the inner surface are given different properties and functions: the inducing surface has a specific orientation to attract and guide deposition material, the guide surface directs the material flow, and the seating surface provides support. This local differentiation ensures that deposition material is deposited only where needed on the front surface while protecting the rear surface from contamination.
2Device complexity
If a simple seating part design is used, then the device complexity is reduced, but deposition material cannot be effectively guided to prevent rear surface deposition
Solution Approach 1:
The solution adds vertical dimensionality to the seating part structure by creating a stepped inner surface with multiple levels (first inner surface, second inner surface, seating surface). This multi-level configuration in the vertical dimension enables effective guidance of deposition material onto the front surface while preventing it from reaching the rear surface, achieving precise deposition control without requiring complex external mechanisms.
3Reliability
If deposition material reaches the rear surface of the window, then adhesion between the window and adhesive layers deteriorates, but preventing this requires additional structural complexity
Solution Approach 1:
The stepped inner surface structure is designed in advance to prevent deposition material from reaching the rear surface of the window before the deposition process begins. The inducing surface, guide surface, and seating surface are pre-configured to naturally direct the deposition material onto the front surface, eliminating the need for additional protective measures or post-processing steps to maintain adhesion quality.
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
This approach effectively prevents defects caused by rear surface deposition and maintains the hydrophilic properties of the window, ensuring proper adhesion with adhesive layers and reducing the risk of outer appearance issues in display devices.
Implementation Method 1
a spray part disposed within the chamber and that faces a bottom surface of the seating part
Data Source
AI summary
A window deposition apparatus includes a chamber, a seating part disposed in the chamber and on which a window is disposed and in which an open portion that exposes a portion of the window is formed, and a spray part disposed in the chamber and that faces a bottom surface of the seating part. An inner surface of the seating part that defines the open portion includes a first inner surface, an inducing surface that connects the first inner surface and the bottom surface of the seating part to each other, a second inner surface disposed on the first inner surface, and a guide surface that connects the second inner surface and a top surface of the seating part to each other. The first inner surface protrudes inward from the second inner surface.