Display Substrate Cutting for Adhesive Seal Integrity
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Solution Overview
Problem
Existing display manufacturing methods face issues with poor sealing between substrates due to large coating location deviations and adhesive breaks, especially when cutting displays to specific sizes, leading to inefficiencies in mass production and increased design and production costs.
Innovation Solution
A method involving cutting the first and second substrates along non-overlapping cutting lines to create reservation parts, where the edge of one substrate contracts inwardly to form a protruding part, allowing adhesive to permeate fully between the substrates, ensuring a tight seal by adding adhesive to the protruding part and solidifying it using UV light or heat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display is cut to adjust size, then the display can be adapted to different sizes, but the adhesive coating location deviates significantly and adhesive breaks occur leading to poor seal
Solution Approach 1:
The patent applies preliminary action by pre-designing the cutting lines on the first and second substrates before the cutting process. The cutting lines are positioned such that after cutting, the first reservation part and second reservation part have overlapping regions that form a protruding part. This preliminary arrangement of cutting lines ensures that when adhesive is coated, it has sufficient contact area and proper alignment, preventing coating location deviation and adhesive breaks while enabling display size adjustment.
2Adaptability or versatility
If the adhesive contact area is reduced due to cutting, then the display size can be adjusted, but the adhesive breaks and seal quality deteriorates
Solution Approach 1:
The patent applies dimensionality change by creating a protruding part through the overlapping of first and second reservation parts after cutting. This protruding part extends in the thickness dimension, providing additional adhesive contact area beyond the original planar contact. By utilizing the third dimension (depth/thickness), the adhesive can fully permeate between the substrates even after size adjustment, maintaining reliable sealing while enabling display size adaptation.
3Ease of manufacture
If universal design is used for all displays, then design cost is reduced, but production cost increases due to poor display performance in mass production
Solution Approach 1:
The patent applies segmentation by dividing the display into a first substrate, second substrate, and image generating medium, with specific cutting lines positioned on each substrate. This segmentation allows the display to be cut into different sizes while maintaining proper alignment and seal quality through the coordinated positioning of cutting lines on each segment. This enables universal design for different display sizes without compromising performance, reducing both design cost and production cost.
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 prevents adhesive breaks and large coating location deviations, achieving a full seal between substrates and reducing production costs by ensuring proper alignment and adhesion during the display size adjustment process.
Implementation Method 1
adding adhesive on a surface of the protruding part facing the first reservation part to make the adhesive permeate between the first reservation part and the second reservation part
Implementation Method 2
solidifying the adhesive
Implementation Method 3
solidifying the adhesive
Data Source
AI summary
Disclosed is a method of adjusting a display size, comprising steps of: providing a display, including a first substrate, a second substrate and an image generating medium; locating first and second cutting lines on the first and second substrates, and an orthographic projection of the first cutting line on the second substrate does not overlap with the second cutting line; cutting the first substrate and the image generating medium along the first cutting line to form a first reservation part and a part of the image generating medium corresponding thereto, and cutting the second substrate along the second cutting line to form a second reservation part, and the second reservation part protrudes relative to the first reservation part to form a protruding part; adding adhesive on the protruding part to make the adhesive permeate between the first reservation part and the second reservation part to solidify the adhesive.