Liquid Crystal Display UV Curing Control

The patent extracts the problematic metal halide lamp or high-pressure mercury lamp from the system and replaces it with an LED ultraviolet irradiation apparatus. This extraction eliminates the difficulty of controlling intensity, wavelength, and temperature while achieving homogeneous polymer network formation through the inherent controllability of LED technology.

The patent substitutes the traditional thermal-based curing system (metal halide lamp or high-pressure mercury lamp) with a solid-state LED-based system. This replacement enables precise control of irradiation parameters without the complexity of thermal management required by traditional lamp-based systems.

The patent changes the chemical composition parameters of the liquid crystal composition by introducing a specific compound with hydroxyl groups that can form hydrogen bonds. This parameter change enables strong adhesion without requiring high polymer network density, thereby preserving the vertical alignment properties and optical characteristics of the liquid crystal.

The patent creates a composite system where the liquid crystal composition includes both polymerizable compounds for network formation and specific compounds (with hydroxyl groups) for adhesion enhancement. This composite approach allows simultaneous achievement of adequate adhesion and preserved liquid crystal alignment properties through synergistic interaction between different components.

The patent introduces a specific compound acting as an intermediary between the hydrophobic alignment film and the liquid crystal composition. This intermediary compound contains hydroxyl groups that form hydrogen bonds, creating a chemical bridge that enhances adhesion while allowing the alignment film to maintain its hydrophobic nature and vertical alignment function.

The patent modifies the surface chemistry parameters of the liquid crystal composition by adding compounds with hydroxyl groups. This parameter change enables chemical interaction (hydrogen bonding) with the alignment film surface, overcoming the adhesion problem caused by the film's hydrophobicity while preserving its alignment functionality.

The patent applies beforehand cushioning by incorporating hydroxyl-containing compounds into the liquid crystal composition before device assembly and operation. These compounds form hydrogen bonds with the alignment film in advance, creating a strong chemical adhesion foundation that resists degradation under subsequent high temperature and humidity conditions.

The patent develops a composite liquid crystal composition that includes polymerizable compounds and hydroxyl-containing compounds. This composite formulation creates a chemically bonded interface between the liquid crystal layer and alignment film, providing long-term adhesion stability in harsh environments through the robust hydrogen bonding network.