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:
Mar. 26, 2013
Filed:
Sep. 21, 2011
Hitoshi Kondou, Chiba, JP;
Shougo Yamada, Chiba, JP;
Ryousuke Asami, Chiba, JP;
Katsunori Shimada, Chiba, JP;
Hitoshi Kondou, Chiba, JP;
Shougo Yamada, Chiba, JP;
Ryousuke Asami, Chiba, JP;
Katsunori Shimada, Chiba, JP;
DIC Corporation, Tokyo, JP;
Abstract
There is provided a triarylmethane compound which can provide a colored product that has light resistance equivalent to heretofore available light resistance and that undergoes only a small change in hue over a long period of time even when having a high-temperature heat history. For example, when a blue pixel portion of a color filter is formed, there is provided a triarylmethane compound which can provide a liquid crystal display apparatus or the like that has light resistance equivalent to heretofore available light resistance and that can perform high-brightness liquid crystal display for a long time even at high temperature. There is also provided a color filter containing the triarylmethane compound in the blue pixel portion. In the triarylmethane compound, the counter-anion of a basic triarylmethane dye cation is a heteropolyoxometalate anion represented by (SiMoWO)/4. The color filter contains the triarylmethane compound in a blue pixel portion.