Display / Oven issue with Kenmore Elite Oven

I've been having an issue lately with the display going out. Finally, this last week it has apparently gone out for good, which means that I can't turn on the main oven or broiler. The side oven and stove-top burners, which are controlled by knobs, function fine. One weird thing is that I can get the display to come back on and the oven to function if I open the oven door. If I depress the light switch, the display goes back off. I'm not sure if this is related or not, but the ignitors on the gas burners seem to operate much faster (3x) than they used to.

I assume, by reading the other posts on here, that I need to replace the OCB? If that is correct, could you please direct me to the correct one?

Thanks,
CJ