Liquid Crystal Display Vertical Alignment Adhesion

The invention changes the chemical composition parameters of the liquid crystal composition by introducing a specific compound with a rigid structure (cyclic group) and polar group. This compound modifies the polymerization behavior and molecular arrangement, enabling sufficient adhesion without excessive polymer network density that would harm vertical alignment. The rigid structure provides structural support while the polar group enhances interfacial interaction, achieving adhesion through molecular design rather than simply increasing polymer content.

The invention creates a composite system combining the liquid crystal molecules, polymerizable compound forming the polymer network, and the specific compound with rigid structure and polar group. This composite approach allows the specific compound to mediate between the conflicting requirements: the polymer network provides adhesion while the rigid structure and polar groups of the specific compound maintain vertical alignment and optical properties by influencing molecular orientation and reducing excessive network density.

Instead of increasing the amount of polymerizable compound, the invention changes the quality parameter by introducing a specific compound with a rigid structure and polar group. This compound alters the polymerization kinetics and network structure, achieving effective adhesion with lower polymer content. The rigid structure prevents excessive network formation that would inhibit vertical alignment, while the polar group ensures sufficient interfacial adhesion.

The specific compound with rigid structure and polar group acts as an intermediary between the polymerizable compound and the alignment film. It mediates the interaction by providing both structural support (rigid group) and adhesive functionality (polar group), allowing effective adhesion without requiring large amounts of polymerizable compound that would otherwise inhibit vertical alignment and degrade optical properties.

The invention applies local quality by introducing a specific compound with distinct functional regions: a rigid structure (cyclic group) that provides structural support and maintains vertical alignment, and a polar group that provides adhesive functionality. This local differentiation within the molecular structure allows the compound to simultaneously satisfy the requirements for vertical alignment (through rigid structure) and adhesion (through polar group), resolving the contradiction between hydrophobicity for alignment and adhesion.

The invention creates a composite molecular structure combining hydrophobic rigid groups and hydrophilic polar groups within the same compound. This composite approach allows the rigid structure to promote vertical alignment through steric effects while the polar group enhances adhesion through dipole interactions, achieving both vertical alignment and high adhesion without relying solely on extreme hydrophobicity of the alignment film.