The display remains on but it does not heat again. The display registers that the temperature is still hot (e.g. 350) when the oven is no longer heating.
The oven seems to turn off only when it gets to hotter temps (above 405). Once it turns off, it does not glow again. If I wait twenty minutes I can re-start it, but it will not restart until the temp has dropped significantly - ie if it shuts off I can't re-start it right away.