Patent ID: 7374435

Claim:
A connecting device of a flexible printed circuit board comprising: a backlight flexible printed circuit board having one end portion thereof connected to a backlight unit for illuminating a display panel and another end portion thereof led out therefrom; and a driving flexible printed circuit board having one end portion thereof connected to the display panel for driving the display panel and the other end portion thereof led out therefrom and having a connector to which the other end portion of the backlight flexible printed circuit board is connected, wherein the backlight flexible printed circuit board comprised a terminal portion having a first contact formed as a printed conductor in said other end portion, wherein the connector has an insertion slot into which the terminal portion is inserted and a second contact fitted inside the insertion slot and connected to the first contact, wherein a reinforcing plate is bonded on a face of the terminal portion opposite to a face thereof on which the first contact is formed, and an ear-like piece that makes contact with an opening rim of the insertion slot in the connector is formed in a position a predetermined distance inward from a tip end of the terminal portion in a length direction of the backlight flexible printed circuit board for permitting a good positional alignment between the first and the second contacts, wherein the backlight flexible printed circuit board comprises a rectilinear base portion extending linearly in a direction the backlight flexible printed circuit board is led out and a curved portion formed in a semicircular or semielliptic shape extending from the base portion, and the terminal portion is formed at a tip end of the curved portion so that the terminal portion is inserted into the insertion slot in a direction perpendicular to a direction in which the rectilinear base extends.