The HP 850119-001 LCD bezel with camera is a replacement frame for the display assembly. It is listed for HP ZBook 17 G3 models equipped with a webcam, giving the part a specific role in that laptop’s display configuration.
This is the bezel, not the display panel or a standalone webcam module. HP lists a different bezel, 848368-001, for ZBook 17 G3 models without a webcam, so the camera-equipped variant is an important distinction when identifying the part.