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:
Jun. 08, 2021
Filed:
Dec. 07, 2017
Sharp Corporation, Sakai, JP;
Ridgefield Acquisition, Luxembourg, LU;
Hirohiko Nishiki, Sakai, JP;
Tohru Okabe, Sakai, JP;
Izumi Ishida, Sakai, JP;
Shogo Murashige, Sakai, JP;
Atsuko Noya, Kakegawa, JP;
Toshiaki Nonaka, Tokyo, JP;
Naofumi Yoshida, Kakegawa, JP;
Merck Patent GmbH, Darmstadt, DE;
Abstract
[Problem] To provide a composition for a black matrix which is a material suitable for manufacturing a black matrix, which is suitable for a high luminance display device structure and has high heat resistance and high light-shielding properties. [Means for Solution] The present invention uses a composition for a black matrix comprising: (I) a black colorant containing carbon black having a volume average particle diameter of 1 to 300 nm; (II) a siloxane polymer to be obtained by hydrolyzing and condensing a silane compound represented by a prescribed formula in the presence of an acidic or basic catalyst; (III) surface modified silica fine particles; (IV) a thermal base generator; and (V) a solvent.