Patent ID: 7948761
Filing Date: 2011-05-24
Classification: G02F,H05K

Abstract:
1. A display device comprising: a display panel which has substrates; and a flexible printed circuit board which has one end thereof fixed to a peripheral portion of a first side of the substrate; wherein the flexible printed circuit board includes an I/F portion on which a plurality of input terminals is formed; the I/F portion is, in a state that the flexible printed circuit board is developed, formed in the inside of the flexible printed circuit board; the flexible printed circuit board forms slits therein along three sides of a predetermined first rectangular shape; the I/F portion is constituted of a portion which has one side thereof connected to the flexible printed circuit board and has remaining three other sides thereof cut out from the flexible printed circuit board due to the slits formed in the flexible printed circuit board along three sides of the first rectangular shape; the flexible printed circuit board is folded back to a back side of the display panel, out of a portion of the flexible printed circuit board which is folded back to the back side of the display panel, assuming a part of the portion which includes a distal end portion of the flexible printed circuit board as a first region and assuming a remaining part of the flexible printed circuit board as a second region with an arbitrary imaginary folding line sandwiched therebetween, the portion of the flexible printed circuit board which is folded back to the back side of the display panel is folded back along the arbitrary imaginary folding line such that the first region overlaps the second region; the I/F portion projects outwardly from the imaginary folding line in a state that the portion of the flexible printed circuit board which is folded back to the back side of the display panel is folded back along the imaginary folding line; the display device includes a means for temporarily fixing the first region to the second region in a state that the portion of the flexible printed circuit board which is folded back to the back side of the display panel is folded back along the arbitrary imaginary folding line such that the first region overlaps the second region; the means for temporarily fixing the first region to the second region is constituted of a projection formed on the first region and a cutout portion formed in the second region; and the first region is temporarily fixed to the second region by inserting the projection into the cutout portion in a state that the portion of the flexible printed circuit board which is folded back to the back side of the display panel is folded back along the arbitrary imaginary folding line.