LCD Panel Barrier Wall Sealant Overflow Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional LCD panel manufacturing faces challenges in precision errors during sealant coating and cutting, leading to increased panel size and difficulty in achieving narrow frame designs due to sealant overflow and cutting precision requirements.
Innovation Solution
Incorporating a barrier wall positioned outside the sealant area, abutted against the substrates, which matches the gap between them after lamination, to contain sealant overflow and facilitate precise cutting by allowing the panel to be cut along or near the barrier wall, reducing the need for high cutting precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the sealant is placed closer to the cutting line to reduce panel size, then the narrow frame design becomes easier, but the cutting precision requirement increases
Solution Approach 1:
The barrier wall acts as an intermediary element between the sealant and the cutting line. It provides a stable reference structure that allows the sealant to be positioned closer to the cutting line while maintaining manufacturing tolerances. The barrier wall absorbs the precision errors, enabling the sealant to be placed at an optimized distance from the cutting line without increasing cutting precision requirements.
Solution Approach 2:
The barrier wall is formed in advance on the substrate before the sealant is applied. This preliminary structure defines the exact position where the sealant should be placed, ensuring consistent positioning relative to the cutting line. By pre-establishing this reference structure, the system eliminates the need for high cutting precision while maintaining narrow frame dimensions.
2Manufacturing precision
If the sealant is placed farther from the cutting line to accommodate precision errors, then the cutting precision requirement is reduced, but the panel size increases making narrow frame design more difficult
Solution Approach 1:
The barrier wall serves as a mediator that decouples the relationship between sealant positioning and cutting line positioning. It allows the sealant to be positioned optimally close to the cutting line while the barrier wall itself absorbs the precision errors, thus reducing cutting precision requirements without increasing panel size.
3Length of moving object
If the sealant is coated with high precision to control its width, then the panel size is reduced, but the manufacturing complexity increases
Solution Approach 1:
The barrier wall provides a physical reference structure that simplifies the sealant coating process. Instead of requiring high-precision coating equipment to achieve the correct sealant width and position, the barrier wall serves as a visible and tactile guide during the coating process, reducing manufacturing complexity while maintaining compact panel dimensions.
Solution Approach 2:
The barrier wall can be designed with contrasting color or visual characteristics that make it easily identifiable during the sealant coating process. This visual guidance helps operators or automated systems position the sealant correctly without requiring complex precision control systems, thereby reducing manufacturing complexity.
Data Source
AI summary
The present invention relates to a liquid crystal display (LCD) panel and its manufacturing method. The LCD panel comprises a first substrate, a second substrate, a sealant, and a barrier wall. The first substrate and the second substrate are disposed relatively. The sealant disposed surrounding between the first substrate and the second substrate. The barrier wall is disposed at the outer side of the area surrounded by the sealant, and the barrier wall is respectively abutted against the first substrate and the second substrate. In summary, the present invention could improve the overflow of the sealant, reducing the difficulty for narrow frame design and the requirement for cutting precision of the LCD panel.