Highly birefringent reactive mesogens

JP2026517590APending Publication Date: 2026-06-02MERCK PATENT GMBH
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
MERCK PATENT GMBH
Filing Date
2024-03-28
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing RM materials with high birefringence exhibit high light absorption, leading to undesirable coloring, and there is a need for materials that can achieve high birefringence without strong light absorption, while being easily processable and capable of precise control over optical properties in multilayer systems.

Method used

The development of polymerizable mesogenic compounds (RM) with specific structural features, including a polymerizable group, spacer group, and mesogenic units, which are used to create RM mixtures and formulations for producing polymer films with controlled birefringence and low light absorption.

Benefits of technology

The RM materials provide high birefringence with minimal light absorption, enabling the production of optical components with excellent orientation quality and precise control over optical properties, suitable for digital optical systems and AR/VR applications.

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Abstract

The present invention relates to reactive mesogens (RM) having high birefringence and low absorption, RM mixtures and formulations containing them (as a subcategory of liquid crystal materials), polymers and polymer films obtained from such RM and RM mixtures, and the use of RM, RM mixtures, formulations, polymers and polymer films in optical or electro-optical components or devices, particularly for digital optical systems or augmented reality or virtual reality (AR / VR) applications, such as polarizers, optical compensators, reflective films, diffraction or surface gratings, Bragg polarizing gratings (Bragg PG), polarizing volume gratings (PVG), polarizing volume holograms (PVH), Pancharatnam Berry (PB) gratings, optical waveguides, lenses or PB lenses.
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