Patent ID: 7123249

Claim:
A display device, comprising: an insulating substrate which has a large number of electrodes, having an end periphery thereof on which a plurality of leads which supply signals for image display to the respective electrodes are formed; a multi-layered printed circuit board which is arranged along the end periphery and includes wiring for transmitting the signals for image display along the end periphery; and a plurality of printed circuit boards for bridging which are arranged in parallel along the end periphery of the insulating substrate, wherein for every one of a plurality of groups of leads formed by dividing the plurality of leads along the end periphery, each printed circuit board bridges the wiring of the multi-layered printed circuit board with one of the plurality of groups of leads, wherein the multi-layered printed circuit board includes at least a unit which has at least one base sheet which is formed by impregnating an insulating sheet fiber member with resin and conductive layers which are stacked and fixed to the base sheet and are insulated from each other by the base sheet, and imperfect connection parts which attenuate an elongation and a shrinkage of the multi-layered printed circuit board in the longitudinal direction in a plane of the base sheet, the imperfect connection parts are formed at a portion of the sheet fiber member of the base sheet, and the imperfect connection parts extend between the printed circuit boards for bridging in the direction which connects end peripheries of the printed circuit boards for bridging along the widthwise direction.