Please follow up this steps to hide record/stop/pause button on the full screen:
1. Execute liteCam HD
2. Click Option Button(Gear Icon) in very top left corner
3. Select Video Options
4. Check on the Icon in the taskbar
5. Then try full screen mode.
6. You can see liteCam icon on the tray as the attachment.
7. Stop recording through the right button clicks of mouse.
8. Then the record/stop/pause button will not appear on your result, or Press F10