| abstract |
Optionally substituted squarylium compounds may be useful in filters for display devices. The squarylium compounds presented herein may be described by the following structure: wherein R1, R2, R3, R5, R6, and R7 are independently H, optionally substituted C1-24 hydrocarbyl, halogen, optionally substituted C1-24 -S-hydrocarbyl, or optionally substituted C1-24 -O-hydrocarbyl; and wherein R4 and R8 are independently H or optionally substituted C1-24 hydrocarbyl. A filter and/or a display device are also described. |