The present invention provides a light-emitting apparatus and a method by which a crowd-based display is created wherein each light-emitting apparatus represents one of many independently moving pixels in the crowd-based display. This invention also provides methods, both internal and external to the...http://www.google.ca/patents/US20080007498?utm_source=gb-gplus-sharePatent US20080007498 - Apparatus and method for creating a crowd-based visual display with pixels that move independently
