Patent ID: 8199308
Filing Date: 2012-06-12
Classification: G02F,H01L,H05K

Abstract:
1. A chip on film structure for connecting a printed circuit board and a liquid crystal display, the chip on film structure comprising: a film substrate having a first cutting edge and a second cutting edge opposite to the first cutting edge; a driver chip disposed on the film substrate; a plurality of input pads disposed on the film substrate and disposed between the driver chip and the printed circuit board for transmitting a first signal generated from the printed circuit board to the driver chip, each input pad comprising an extending portion extending from the input pads to the first cutting edge respectively, a width of each extending portion being thinner than a width of each input pad, the first cutting edge being cut through the extending portions with thinner width; and a plurality of output pads disposed on the film substrate and disposed between the driver chip and the liquid crystal display for transmitting a second signal generated from the driver chip to the liquid crystal display, the output pads being disposed between the driver chip and the second cutting edge and being not in contact with the second cutting edge, the second cutting edge only being cut through the film substrate.