Liquid Crystal Display Panel Narrow Bezel Wall Structure
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Solution Overview
Problem
The challenge in creating narrow bezel liquid crystal devices is the difficulty in controlling the coating of alignment films, as the edges of the alignment films are not even, and the overlap of alignment films with the sealant affects the gluing process, making it hard to implement a narrow bezel design.
Innovation Solution
The solution involves arranging first and second walls on the color filter and thin-film transistor array substrates, respectively, to prevent alignment films from overlapping with the sealant, thereby maintaining the alignment films within the active area and reducing the distance between the active area and the edges of the display panel, allowing for a narrow bezel design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the edges of the alignment films are designed to be close to the edges of the Active Area to maintain display performance, then the active area utilization is improved, but the overlap of alignment films with the sealant affects the gluing process and makes narrow bezel design difficult to implement
Solution Approach 1:
The patent introduces wall structures that segment the alignment film from the sealant area. These walls create distinct regions: one for the alignment film and another for the sealant, preventing their overlap while maintaining close proximity to the active area edges. This segmentation allows both components to be positioned optimally without interfering with each other during the gluing process.
Solution Approach 2:
The wall structures act as intermediary elements between the alignment film and the sealant. These walls are positioned to prevent direct contact and overlap between the two components, while still allowing the alignment film to extend close to the active area boundary. The walls serve as a mediating structure that resolves the spatial conflict between the alignment film and sealant.
2Area of moving object
If the alignment films are coated to extend close to the edges of the Active Area to maximize display performance, then the active area coverage is improved, but the coating process becomes difficult to control as the edges of the alignment film are not even
Solution Approach 1:
The wall structures are formed on the substrates before the alignment film coating process. This preliminary action creates predefined boundaries that guide the alignment film coating process, ensuring even edges by preventing the film from extending beyond the walls. The walls act as physical guides that ensure consistent and uniform alignment film edges during coating.
Solution Approach 2:
The walls serve as intermediary guides during the alignment film coating process. They provide a physical reference that ensures the alignment film is coated to the correct extent, preventing uneven edges. The walls mediate between the coating process and the desired final geometry, ensuring precise and uniform alignment film edges.
3Length of stationary object
If the alignment films and sealant are positioned to allow narrow bezel design, then the display panel dimensions are reduced, but the overlap between alignment films and sealant affects the gluing quality
Solution Approach 1:
The wall structures segment the space between the alignment film and sealant, creating distinct regions that prevent overlap. This segmentation allows the alignment film to be positioned close to the active area edge while the sealant is positioned in a separate region, maintaining proper gluing quality without requiring increased panel dimensions.
Solution Approach 2:
The wall structures introduce local quality changes in the substrate region where the alignment film and sealant meet. By adding these localized wall structures, the patent creates different functional zones: one for the alignment film and another for the sealant, allowing narrow bezel design while maintaining reliable gluing in the sealant region.
Data Source
AI summary
A display panel and a liquid crystal device are disclosed. The display panel includes a first substrate, a second substrate opposite to the first substrate, a sealant. The first substrate is arranged with a first alignment film. The second substrate is arranged with a second alignment film. The sealant surrounds the first substrate and the second substrate. A first wall is arranged on the first substrate, and the first wall is between an edge of the first alignment film and the sealant. A second wall is arranged on the second substrate, and the second wall is between an edge of the second alignment film and the plastic film. In this way, the distance between an active area and edges of the display panel is reduced so that the narrow bezel design may be implemented.