A flat panel display apparatus eg a plasma display panel, and a method for interfacing pixel data therein are disclosed. The method, for interfacing pixel data from a frame memory whose every line has L (where L#3NxM ; N is a bit number of one word of respective red, green, and blue, M is a minimum integer which is greater than a quotient of S/N, and S is a number of samples of respective red, green and blue per line) units of one-bit pixel data stored therein to Q (where Q is a least integer which is greater than a quotient of L/2P) units of address electrode driving integrated circuits respectively having both N/ 2 input pins and P (where P is a common multiple of 3 and N/2) output pins, repeats every data corresponding to 1/2 lines over G times, reading 3N/2-bit red, green and blue data in {A+G(n-1)}-numbered sequence (where A is an initial address value of respective data groups, G is a least integer which is greater than a quotient of M/Q and represents a group number, and 1#n#Q) among M units of 3N/2-bit red, green and blue data sequences over Q times in sequence every data corresponding to 1/2 lines from said frame memory, stores the read 3N/2-bit red, green and blue data over Q times in a first storage area and, simultaneously, outputs {(N/2)#Q}-bit data sequences over three times from a second storage area having previous data stored therein, and repeats both reading the data from said first storage area and outputting the data from said second storage area alternately over G times.
Flat panel display apparatus and method for interfacing data thereof