Invention Grant
- Patent Title: Method of producing organic pigment composition, method of producing coating film, and method of evaluating luminance of coating film
-
Application No.: US16339966Application Date: 2017-10-10
-
Publication No.: US11613693B2Publication Date: 2023-03-28
- Inventor: Masakazu Enomura , Daisuke Honda
- Applicant: M. TECHNIQUE CO., LTD.
- Applicant Address: JP Izumi
- Assignee: M. TECHNIQUE CO., LTD.
- Current Assignee: M. TECHNIQUE CO., LTD.
- Current Assignee Address: JP Izumi
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JPJP2016-199273 20161007
- International Application: PCT/JP2017/036711 WO 20171010
- International Announcement: WO2018/066717 WO 20180412
- Main IPC: C09K11/02
- IPC: C09K11/02 ; C09D5/22 ; G01N21/47 ; G02B5/20 ; C09K11/06 ; G02B1/04 ; G01N21/27 ; C09B67/20 ; C09B67/02
Abstract:
A method of producing an organic pigment composition including at least organic pigment microparticles, wherein a diffuse reflectance of the organic pigment microparticles is controlled for the purpose of improving a luminance of a color filter. The luminance of the color filter is controlled to be high, by controlling a ratio of an area of the diffuse reflectance in a target wavelength range to a total area of the diffuse reflectance in the entire measurement wavelength range in a diffuse reflection spectrum of the organic pigment microparticles in the wavelength range of 380 to 780 nm, to be high. The luminance of the color filter is controlled to be high, by coating at least a part of the surface of the organic pigment microparticles with an oxide.
Public/Granted literature
Information query
