Near infrared-absorbing phthalocyanine-based compound of excellent transmittance at visible range, and optical filter comprising the same

摘要

The present invention relates to a novel infrared absorption phthalocyanine compound having a novel structure exhibiting an excellent absorption efficiency in the near infrared region (700-1100 nm), and is characterized by being a compound represented by the following formula (I), wherein the near infrared absorption The phthalocyanine compound for use is excellent in transmittance in the visible light region (transmittance in the visible light region (550 nm) when the transmittance (T%) at the maximum absorption wavelength is 10%) and in the near infrared region Absorption is excellent. In particular, since excellent stability in heat resistance and moisture resistance is provided, it is possible to manufacture an optical filter having excellent performance. (I)