shadows/framework/src/main/java/org/robolectric/shadows/ShadowDisplay.java
public static Display getDefaultDisplay() {
    WindowManager windowManager =
        (WindowManager) RuntimeEnvironment.application.getSystemService(Context.WINDOW_SERVICE);
    return windowManager.getDefaultDisplay();
  }
public static Display getDefaultDisplay() {
    WindowManager windowManager =
        (WindowManager) RuntimeEnvironment.application.getSystemService(Context.WINDOW_SERVICE);
    return windowManager.getDefaultDisplay();
  }
Returns the default display.

@return the default display