B737-800
Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Human-Machine Interface
Aircraft Equipment Problem Less Severe
Flight Crew Landed in Emergency Condition; Flight Crew Returned To Departure Airport; General Maintenance Action
Aircraft
I was the pilot flying. After takeoff and final flap retraction; we had a momentary stick shaker. We confirmed aircraft attitude and airspeed were normal. The Captain's display showed an Amber Spd Limit light and minimum speed bar. FO's (First Officer's) display showed normal indications. We informed ATC of our problem and returned to ZZZ. I remained the pilot flying. We completed the QRH for Unreliable Airspeed. Per the QRH; we were able to reengage the flight director and autopilot; but not use the autothrottles. We had extended vectors to burn off fuel so as to not exceed landing weight. As we got closer to the airport; ATC asked if we needed the fire trucks. We told them we did not need them. We landed without incident and returned to the gate.
B737 Pilot reported Captain's airspeed display unreliable.