Liquid Crystal Panel Protrusions Embedded in Sealant
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Solution Overview
Problem
Conventional liquid crystal panels face adhesion issues between the sealant and the orientation layers due to material incompatibility, leading to potential damage from shock or vibration during use or transportation.
Innovation Solution
The implementation of protrusions on the substrates embedded in the sealant, which are made of the same material as the electrode layers, enhances the adhesion by increasing the contact area between the sealant and the electrode layers, ensuring a stronger bond between the substrates and the sealant.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sealant is used to bond substrates, then sealing function is achieved, but adhesion strength is insufficient due to material incompatibility with orientation layers
Solution Approach 1:
The invention segments the bonding interface by introducing protrusions that create multiple discrete bonding points between the sealant and substrate, transitioning from a single continuous interface to multiple segmented contact points. This segmentation allows the sealant to bond effectively to the ITO layer through the protrusions while maintaining the sealing function, resolving the material incompatibility issue between sealant and orientation layer.
Solution Approach 2:
The protrusions act as an intermediary structure between the sealant and the substrate. By making the protrusions from the same material as the electrode layer (ITO), they serve as a compatible intermediate bonding surface that the sealant can adhere to, eliminating the direct contact between incompatible sealant and orientation layer materials.
2Strength
If protrusions are added to enhance adhesion, then bonding strength improves, but device complexity increases
Solution Approach 1:
The invention merges the protrusion structure with the existing electrode layer material (ITO), making the protrusions an integrated part of the substrate structure rather than a separate component. This merging approach enhances bonding strength while minimizing additional structural complexity, as the protrusions are formed from the same material already present in the device.
Solution Approach 2:
The protrusions serve multiple functions: they provide enhanced bonding surfaces for the sealant, maintain the sealing function, and are made from the same ITO material as the electrode layer, ensuring material compatibility. This multi-functionality reduces the need for additional specialized components, thereby limiting the increase in device complexity.
Data Source
AI summary
An exemplary liquid crystal panel (30) includes a first substrate (31), a second substrate (32), a liquid crystal layer (37), and a sealant (35). The first substrate includes a first base (310), a plurality of first protrusions (316), and a first orientation layer (315). The second substrate is parallel to the first substrate, and includes a second base (320). The sealant is disposed between the first base and the second base at a periphery of the liquid crystal panel. The first base, the second base, and the sealant cooperatively forming an accommodating space therebetween. The liquid crystal layer is disposed in the accommodating space. The first protrusions are disposed on or generally adjacent to the first base and are embedded in the sealant, and part of the first orientation layer is disposed at interspaces between the first protrusions. A method for manufacturing the liquid crystal panel is also provided.