Patent ID: 6734941
Filing Date: 2004-05-11
Classification: G02F,H05K

Abstract:
A liquid crystal display device including a liquid crystal display panel which forms a display region by sandwiching liquid crystal between a pair of substrates having electrodes for selecting pixels on one inner surface or both inner surfaces thereof and has panel input terminals at a periphery of one of the pair of substrates for applying display signals to a plurality of electrode terminals pulled out of the display region, and a flexible printed circuit board having a multi-layered structure which includes output terminals connected to the panel input terminals for applying display signals to the electrodes,the improvement being characterized in that the panel input terminals are formed of a plurality of groups of terminals which are arranged at a given interval along the longitudinal direction of the periphery of one of the pair of substrates, the flexible printed circuit board includes input terminals which are connected to an external circuit and the output terminals which are connected to the panel input terminals, and a conductive pattern which connects the input terminals and the output terminals by wiring, and at portions of the flexible printed circuit board corresponding to positions between the groups of electrode terminals of the liquid crystal display panel, dummy conductive patterns which are capable of reducing the stress concentration when the output terminals of the flexible printed circuit boards overlap the corresponding panel input terminals of the liquid crystal display panel to connect by compression bonding are provided.