S. Ten Hoorn, P. W. Elbers and A. R. Girbes published a systemic review in critical care journal in Sept, 2016 about how to communicate with patients on mechanical ventilation.
Summary of the review is in this picture
In the US, many ICUs use commercially available communication boards. One below is from Vidatak.
In the current technology driven era, there are many apps available for android and iOS. Other than ease of use, I do not think they provide any superiority over the traditional boards.
Traditional boards have been translated in several other languages.
Most important factor would be to communicate with the patient, prior to intubation and the circumstances under which patient will find himself once he is awake.