Etching Delay Element for Display Panel Protrusion Control
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Solution Overview
Problem
Conventional methods for etching display panels to produce curved displays face challenges in forming protrusions with varying thicknesses and shapes, leading to increased etching time and potential breakage due to excessive projection, as well as the need for multiple masking procedures.
Innovation Solution
The use of etching delay elements made of etchable material, attached to non-etching sections of the display panel, which are etched along with the panel to form protrusions of specific thicknesses and shapes, eliminating the need for post-etching removal and reducing etching time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If masking procedure is performed on non-etching sections to form protrusions, then protrusions can be formed, but thickness of protrusions cannot be precisely controlled and excessive projection occurs
Solution Approach 1:
An etching delay element is introduced as an intermediary component between the non-etching section and the etchant. This element temporarily protects the non-etching section during etching, allowing precise control of protrusion thickness by adjusting the delay element's thickness, and prevents breakage by limiting projection to the delay element's thickness
Solution Approach 2:
The thickness of the etching delay element is adjusted as a controllable parameter to precisely determine protrusion thickness. By changing this parameter, the invention achieves accurate protrusion thickness control and prevents excessive projection that causes breakage
2Manufacturing precision
If masking procedure is performed while non-etching sections are covered with caps, then non-etching sections are protected, but it becomes difficult to form protrusions having various shapes and etching time increases
Solution Approach 1:
The etching delay element is designed as a disposable component that is easily attached and removed. Made from inexpensive materials like photosensitive resin or polyimide, it can be quickly applied in various shapes and discarded after etching, eliminating the need for complex reusable masking systems and reducing total process time
Solution Approach 2:
The etching delay element is attached to the non-etching section before the etching process begins. This preliminary action allows the element to serve as a temporary mask during etching, enabling precise shape control of protrusions while simplifying the overall process by eliminating post-etching mask removal steps
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
Enables the formation of protrusions with various thicknesses and shapes, prevents excessive projection, and reduces etching time by eliminating the need to remove masking elements, while ensuring the protrusions are easily formed and securely attached.
Implementation Method 1
The etching delay element may be made of a material that is etchable by an etchant... applying the etchant to an entire surface of the display panel, to which the etching delay element is attached, to etch the entire surface
Data Source
AI summary
Provided is an etching delay element for forming a protruding portion at an object by shielding part of the object against etching, the etching delay element being attached to a non-etching section of the object corresponding to the protruding portion and being made of a material that is etchable by an etchant.