Under Illinois law, when requested by a police officer, a driver must produce proof of insurance. In 2013 it became legal for the proof to be a “display of an electronic image on a cellular phone or other type of portable electronic device”.
Basically, what this means is that if you have the proof as an electronic image, you don’t have to produce a hard copy.
The new part of the law makes it clear that using an electronic device to display the proof does not constitute consent for a law enforcement officer to access other contents of the device. The new law also makes the officer immune from any liability resulting from damage to the device.
You should contact your insurance company to see if a digital version of the proof is available.