Patent ID: 7570234
Filing Date: 2009-08-04
Classification: G09G

Abstract:
1. An organic EL drive circuit IC for driving an organic EL panel by generating drive currents corresponding to terminal pins of said organic EL display panel on the basis of a reference current, comprising: a first and second input terminals provided for inputting an externally supplied current corresponding to and in phase with the reference current; a first and second output terminals; a reference current selector circuit for selecting one of the current inputted to said first input terminal, a current inputted to said second input terminal and the reference current; a current inverter circuit for inverting phase of the current selected by said reference current selector circuit with respect to the reference current; and a current mirror circuit having an input side transistor for receiving an output current of said current inverter circuit and a first and second output side transistors for generating currents each corresponding to the reference current and supplying the currents to said first and second output terminals, wherein said organic EL drive circuit IC is rectangular, said first and second input terminals are arranged on opposite sides of said rectangular IC, which are adjacent to sides of other rectangular IC's each having a circuit construction identical to a circuit construction of said organic EL drive circuit IC, when said organic EL drive circuit IC and said other rectangular IC's are arranged adjacent each other, and said first and second output terminals are arranged similarly to said first and second input terminals.