Answered: Approved LED displays

It was ruled that using this module was legal in this post - https://vexforum.com/t/vex-world-championship-2011-cost-estimate/18085/1

Can the same ruling be applied to this LCD matrix? Amazon.com

Two would just be used to display eyes for the robot.

Provided that all applicable rules are followed, especially in regards to power sources, this would be legal.