Filters for electronic display devices
US7687633B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2004 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Jan 31, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B57/007
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a filter for electronic display devices, comprising a squarylium compound represented by General Formula (I):[wherein X represents a group represented by following Formula (A):(wherein R1, R2, R3, and R4 may be the same or different and each represents a hydrogen atom, a halogen atom and the like; and R5 and R6 may be the same or different and each represent a hydrogen atom, an alkyl group optionally having substituent(s) and the like) and the like; and Y represents a group represented by following Formula (C):(wherein R9 represents a halogen atom, an alkyl group optionally having substituent(s) and the like; and R10 represents a hydrogen atom, an alkyl group optionally having substituent(s) and the like) and the like, and “n” represents an integer of 0 to 5].
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.