Patent ID: 7180513

Claim:
A driving semiconductor circuit group for a current drive type display device constituted by arranging plural driving semiconductor circuits wherein, at least one of said driving semiconductor circuits comprises: a drive current output mechanism having a common gate line, first and second current distributing means which are provided at both ends of said common gate line and receive input of a reference current, plural drive current generating means which are provided along said common gate line and generate drive currents on the basis of the reference current to be distributed from said current distributing means in a current mirror system, and reference current generating means which are provided in the vicinity of said current distributing means and generate the reference current from a reference voltage signal having a reference voltage and predetermined power supplies having a voltage higher than the reference voltage, wherein said plural driving semiconductor circuits are arranged, such that the ends of said common gate line of the respective driving semiconductor circuits are adjacent to each other, and wherein a pair of the reference current generating means adjacent to each other in a pair of said driving semiconductor circuits adjacent to each other acquire the predetermined power supplies from the adjacent driving semiconductor circuits to each other and generate the reference current from the predetermined power supplies and the reference voltage signal to be supplied to said driving semiconductor circuits, at least one of said driving semiconductor circuits at least includes plural resistance elements connected in series which are provided between said predetermined power supplies of each of said pair of reference current generating means adjacent to each other and corresponding ones of said pair of reference current generating means corresponding to the power supplies, respectively, and a part of said plural resistance elements connected in series are formed on a chip of one of said pair of driving semiconductor circuit adjacent to each other, and the remainder of said plural resistance elements are formed on a chip of the other of said pair of driving semiconductor circuits adjacent to each other.