A method for repairing an organic light emitting display having a plurality of unit pixels each including a white, red, green, and blue subpixel (SPW, SPR, SPG, SPB), the method comprising: checking circuit units of the white subpixels; detecting a defective white subpixel having a defective circuit unit; connecting a circuit unit (RC, BC, GC) of a neighboring subpixel (SPR, SPG, SPB) positioned adjacent to the defective white subpixel in the same unit pixel as the defective white subpixel with a light emitting unit of the defective white sub-pixel using a repair conductive pattern; storing a repair position to which the repair conductive pattern is connected; and compensating of digital video data that will be input to the repair position, wherein a compensation value is determined in consideration of a difference between physical properties of the defective white subpixel and the neighboring subpixel (SPR, SPG, SPB), including a transmittance difference between the light emitting units (WE, RE; GE, BE) of the defective white subpixel and the neighboring subpixel (SPR, SPG, SPB), an emission efficiency difference between the light emitting units (WE, RE; GE, BE) of the defective white subpixel and the neighboring subpixel (SPR, SPG, SPB), and a size difference between driving thin film transistors (TFTs) of the circuit units (WC, RC; GC, BC) of the defective white subpixel and the neighboring subpixel (SPR, SPG, SPB), and in consideration of a luminance difference between the defective white subpixel and a normal white subpixel, wherein the compensating of the digital video data, which will be input to the re-pair position, includes: performing a calculation processing operation of the compensation value by a compensation algorithm based on a lookup table, in which the compensation value is stored, when the digital video data corresponding to the repair position is input; and modulating an original value of digital video data to be applied to the neighboring subpixel (SPR, SPG, SPB), based on the calculation processing operation of the compensation value to produce compensation data, so as to remove the luminance difference between the defective white subpixel and a normal white subpixel, wherein the digital video data indicates digital video data, which will be input to the neighboring subpixel (SPR, SPG, SPB), and outputting the compensation data to the neighboring subpixel. checking circuit units of the white subpixels; detecting a defective white subpixel having a defective circuit unit; connecting a circuit unit (RC, BC, GC) of a neighboring subpixel (SPR, SPG, SPB) positioned adjacent to the defective white subpixel in the same unit pixel as the defective white subpixel with a light emitting unit of the defective white sub-pixel using a repair conductive pattern; storing a repair position to which the repair conductive pattern is connected; and compensating of digital video data that will be input to the repair position, wherein a compensation value is determined in consideration of a difference between physical properties of the defective white subpixel and the neighboring subpixel (SPR, SPG, SPB), including a transmittance difference between the light emitting units (WE, RE; GE, BE) of the defective white subpixel and the neighboring subpixel (SPR, SPG, SPB), an emission efficiency difference between the light emitting units (WE, RE; GE, BE) of the defective white subpixel and the neighboring subpixel (SPR, SPG, SPB), and a size difference between driving thin film transistors (TFTs) of the circuit units (WC, RC; GC, BC) of the defective white subpixel and the neighboring subpixel (SPR, SPG, SPB), and in consideration of a luminance difference between the defective white subpixel and a normal white subpixel, wherein the compensating of the digital video data, which will be input to the re-pair position, includes: performing a calculation processing operation of the compensation value by a compensation algorithm based on a lookup table, in which the compensation value is stored, when the digital video data corresponding to the repair position is input; and modulating an original value of digital video data to be applied to the neighboring subpixel (SPR, SPG, SPB), based on the calculation processing operation of the compensation value to produce compensation data, so as to remove the luminance difference between the defective white subpixel and a normal white subpixel, wherein the digital video data indicates digital video data, which will be input to the neighboring subpixel (SPR, SPG, SPB), and outputting the compensation data to the neighboring subpixel.