I haven't taken a careful look at the datasheet yet but there are at least two things that have to be considered, the Instruction Set and the Timing diagrams.
A quick look shows that the Instruction Set seems to be a superset of that used by the HD47780, the controller for which the LiquidCRystal library is written. This means that if you use the LiquidCrystal library, and if it's timing is adequate for your device, it may work well enough for you to get your display to function. You probably will not be able to use all the features of your display but you probably won't destroy it either.
Obviously a library written specifically for your device is a much better choice, but if you already have the device but not the library you are probably safe trying the LiquidCrystal library.
Don