2011 Prius II Radio Display went bad

After ownership of 3 years ( Bought CPO 2017) with 85K miles on it, the first issue came up with radio display went off , I can still use bottom on the steering ( thanks god) , so sounds with no problem, just whole radio display panel went bad. I have now use button on steering to control.
Symptom: I experienced no reacted while I touched the number bottom to select radio channel 6-7 months ago. Today , after Turned lower volume during driving then parked 3 hours...After returned the car, turn engine on and radio display no more working but can still hear radio channel which went bad before... Does any one has same issue, how to solve it ? who should I look for ? possible cost ? Appreciate your help and comment...