Abstract: A liquid crystal display device converts input signals into liquid crystal drive signals so as to display an image on a liquid crystal panel. A plurality of flexible boards are connected to the liquid crystal panel, each of the flexible boards having a drive IC which converts the input signals into the liquid crystal drive signals. A connection board is connected to the liquid crystal panel so as to supply the input signals to first input lines formed on the liquid crystal panel. Each of the flexible boards has second input signal lines for supplying the input signals to the drive IC; a first end of each of the second input signal lines is connected to a respective one of a first group of the first input signal lines.

Abstract: A peripheral circuit board for a liquid crystal display device formed by laminating a plurality of printed boards and a liquid crystal display device equipped therewith, featuring improved reliability in the connection to the flexible circuit boards. A connection region is formed in a laminated layer structure of a plurality of printed boards having predetermined wiring patterns, the connection region being formed by the printed boards of a number of pieces smaller than that of other regions, and a plurality of terminal portions are formed on the surface of the connection region and are electrically connected to a liquid crystal display panel through a plurality of flexible circuit boards.