D2 Air LED display black and pixelated

Suddenly this morning my D2 Air LED display stopped working.  The display is almost entirely black with a moon crescent shaped pixelated colors on the right side of the watch.  I cannot see any normal watch information on the screen.  I have hard reset the watch several times, but each time the display is still inoperative.  Is there a way to reset the display, or is the watch completely dead at this point?