The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 2023
Filed:
Sep. 29, 2021
Samsung Electronics Co., Ltd., Suwon-si, KR;
Jong Hoon Won, Yongin-si, KR;
Changki Kim, Suwon-si, KR;
Hyung Jun Kim, Suwon-si, KR;
Yong Joo Lee, Suwon-si, KR;
Myungsup Jung, Seongnam-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
Disclosed are an optical filter including a near infrared absorption layer on a polymer film. The polymer film has a* of about −5.0 to about +5.0 and b* of about −5.0 to about +5.0 in a color coordinate expressed by a CIE Lab color space. The near infrared absorption layer may be configured to transmit light in a visible region and to selectively absorb at least one part of light in a near infrared region. The near infrared absorption layer includes a first near infrared absorption material including a copper phosphate ester compound and a second near infrared absorption material including at least two different organic dyes. The second near infrared absorption material has a maximum absorption wavelength (λ) in a wavelength region of about 650 nm to about 1200 nm. An electronic device may include the optical filter.