Composition, film, optical filter, solid-state imaging element, image display device, infrared sensor, camera module, and near infrared absorbing coloring agent

The inclusion compound structure of near-infrared absorbing dyes addresses aggregation issues, enhancing film quality and performance in optical filters and related devices by suppressing foreign matter defects.

JP2026049421APending Publication Date: 2026-03-18FUJIFILM CORP
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Patent Information

Application Number
JP2024154087
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-09-06
Publication Date
2026-03-18

AI Technical Summary

Technical Problem

Existing near-infrared absorbing dyes with extended conjugated systems are prone to aggregation, leading to foreign body defects in films, which affects the quality and performance of optical filters and other devices.

Method used

Incorporating a near-infrared absorbing dye with an inclusion compound structure, where a compound represented by formula (1) acts as a guest encapsulated by a cyclic host, or vice versa, along with a curable compound and solvent, to form a film that suppresses aggregation and foreign matter defects.

Benefits of technology

The composition effectively reduces foreign matter defects, enabling the formation of high-quality films for optical filters, solid-state image sensors, image display devices, infrared sensors, and camera modules with improved performance.

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Abstract

To provide a composition capable of forming a film in which the occurrence of foreign matter defects is suppressed, a film, an optical filter, a solid-state imaging device, an image display device, an infrared sensor, a camera module, and a near-infrared absorbing dye.SOLUTION: A composition including a near infrared absorbing dye having an inclusion compound structure a1 in which a compound represented by Formula (1) is a guest and a cyclic compound including the guest is a host, or an inclusion compound structure a2 in which a compound having a dye structure derived from the compound represented by Formula (1) is a guest and a cyclic compound including the dye structure of the guest is a host, a curable compound, and a solvent.SELECTED DRAWING: None
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