| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electro-optical device which stably transmits a high frequency signal with an FPC. <P>SOLUTION: The electro-optical device is, for example, a liquid crystal display device, and a signal for displaying an image is supplied to its electro-optical panel via an interface board. The interface board is provided with a flexible film board (FPC) 41 such as an polyimido resin or an epoxy resin on which a plurality of terminals 56a, a plurality of wirings 56 and a first conductive member 57 are provided. The first conductive member 57 is a metallic film 57 formed by copper (Cu) or the like and planarly overlaps with at least one of the plurality of wirings 56 and is formed on the opposite face of the film board along one of the wirings 56. The first conductive member 57 is connected to a ground wiring and always set to an electric potential of 0 V. By this, high frequency signals flowing through the wirings 56 formed along the metallic film 57 are free from a loss to stabilize data transmission. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
