Abstract: An apparatus for allowing display modules to communicate information about themselves to other display modules in the same display panel, comprising a module-based display panel wherein each face of the panel comprises a plurality of display modules, wherein the transmitters, receivers and/or transceivers are configured so that each transmitter or transceiver on a given display module is adjacent to a receiver or transceiver on an adjacent display module, wherein the transmitters or transceivers on a given display module transmit information about that display module to the adjacent receivers or transceivers, wherein the receivers or transceivers on a given display module receive information about the adjacent display module from the adjacent transmitters or transceivers, and wherein the information is used by the display modules and/or a main controller to determine the location of the display module within a display panel.

Abstract: A latch for attaching a display module to a face panel, the latch comprising: a front panel; rear panel; latch arm; circular extension; and circular rotating cuff; wherein the top and bottom portions of the rear panel are fixedly attached to the front panel; the latch arm is situated in between the front panel and the middle portion of the rear panel; the circular extension extends perpendicularly from the front panel and is fixedly attached to the latch arm; the circular rotating cuff is located in a cut-out in the middle portion of the rear panel and is fixedly attached to the latch arm; the circular extension and circular rotating cuff each comprises a wrench hole; the wrench holes in the circular extension and circular rotating cuff do not extend all the way through the latch; and the circular extension comprises one or more O-rings.