Patent ID: 7657042

Claim:
A liquid crystal display device comprising: a liquid crystal panel including a first substrate, a second substrate, and a liquid crystal layer disposed between the first substrate and the second substrate; a light guide plate disposed on the side of the second substrate that is not in contact with the liquid crystal layer; a connection terminal portion disposed at an edge portion of the second substrate on the side thereof in contact with the liquid crystal layer; an excitation source disposed at an edge portion of the second substrate on the side thereof that is not in contact with the liquid crystal layer at a position opposite the connection terminal portion; and a light source disposed near at least one side of the light guide plate other than the side of the light guide plate that is closest to the excitation source so that light enters the light guide plate from the side at which the light source is disposed; wherein the excitation source produces sound by causing the second substrate to flexurally vibrate according to an externally supplied sound signal.