Curved LCD Protective Component Affixing via Composite Adhesive Segmentation
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Solution Overview
Problem
Existing methods for affixing protective films to liquid crystal displays, especially on curved surfaces, face challenges such as poor fit, bubble formation, and reduced touch sensitivity due to the use of UV glue and double-sided adhesives.
Innovation Solution
A method involving the placement of a protective component on a liquid crystal display with a white edge formed between its edges, where solidifiable liquid glue is injected to fill and solidify, improving the fit by eliminating the white edge and using a combination of solid and liquid glues, including double-sided adhesive for inner affixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If UV glue is used to affix curved surface parts of protective films, then the white edge is eliminated, but the method is difficult to operate and produces bubbles with poor fit
Solution Approach 1:
The affixing method is divided into two distinct stages: first using solid adhesive (double-sided tape or solid glue) to attach the protective component to the display surface, then injecting liquid adhesive into the white edge gaps to eliminate visual defects. This segmentation allows each adhesive type to perform its optimal function without interference.
Solution Approach 2:
The invention changes the physical state parameter of the adhesive from purely liquid (UV glue) or purely solid (double-sided adhesive) to a combination: solid adhesive for initial bonding and structural support, then liquid adhesive for gap filling and visual perfection. This parameter change resolves the contradiction between fit quality and ease of operation.
2Ease of operation
If double-sided adhesive is used to affix curved surface parts, then the operation is easier, but the fit is poor and touch sensitivity is reduced
Solution Approach 1:
The affixing method is divided into two distinct stages: first using solid adhesive (double-sided tape or solid glue) to attach the protective component to the display surface, then injecting liquid adhesive into the white edge gaps to eliminate visual defects. This segmentation allows each adhesive type to perform its optimal function without interference.
Solution Approach 2:
The invention uses a composite adhesive system combining solid adhesive (for ease of operation and initial bonding) and liquid adhesive (for fit quality and gap filling). This composite approach leverages the advantages of both material types: the ease of application of solid adhesive and the conformability of liquid adhesive to curved surfaces.
3Strength
If a protective component is affixed to a liquid crystal display with curved edges, then protection is provided, but white edges appear between the protective component and display edges
Solution Approach 1:
The invention extracts and addresses the white edge defect as a separate issue from the primary protection function. After the protective component is affixed for protection, the liquid adhesive is specifically injected into the white edge gaps to eliminate this visual defect, separating the protection function from the aesthetic finish function.
Solution Approach 2:
The liquid adhesive is selected to match the color of the protective component or display edge, allowing it to fill and conceal the white edge gaps. This color matching eliminates the visual defect while maintaining the protective function.
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 method enhances the fit of protective components to curved liquid crystal display edges, eliminating white edges and ensuring better touch sensitivity and protection, applicable to various electronic devices.
Implementation Method 1
the liquid glue is solidified by photocuring, baking, or natural solidification
Data Source
AI summary
A method for affixing a protective component to a liquid crystal display, specifically comprises placing a protective component on a surface of a liquid crystal display, wherein a white edge is formed between an edge of the protective component and an edge of the liquid crystal display with a curved surface; injecting solidifiable liquid glue into the white edge to fill a space of the white edge and then solidifying the liquid glue to make the edge of the protective component fit to the edge of the liquid crystal display. The white edge is eliminated in combination with solid and liquid glues, thereby improving the fit. This method can be widely applied to the field of electronic product technologies.