An LCD device in which a plurality of grounding protrusions are formed in a region not having a signal transmission pattern among the bottom surface of a printed circuit board in contact with a bottom chassis so as to increase a contact area between the printed circuit board and the bottom chassis, to thereby prevent a damage caused by an electromagnetic wave and error of devices. Specifically, systems that when taken alone, or together, provide an individual or group of individuals with an intuitive and comfortable vehicular environment. The specialty fiber condenses the mode field diameter of the beam in the input fiber into its smaller MFD. The walls comprise a plurality of wall panels placed into customized tracks secured to the floor.