Abstract:
An optical compensation method for an organic light emitting display device comprises: setting initial gain values of RGB subpixels; making each of the RGB subpixels converge on target luminance; selecting subpixels to emit light with the W subpixel from the RGB subpixels, and setting an initial gain value of the W subpixel; measuring color coordinates and luminance of the W subpixel to which the initial gain value is applied; calculating the luminance ratio of the W subpixel and the selected subpixels; adjusting maximum gains of the W subpixel and the selected subpixels; measuring maximum color coordinates and luminance ratio of the W subpixel and the selected subpixels; and making the W subpixel and the selected subpixels converge on target color coordinates and luminance.
Abstract:
An organic light emitting diode display device can include a display panel in which data lines and gate lines intersect each other; an image processing circuit converting a first digital image data including a plurality of color digital data into any one of a second digital image data including the plurality of color digital data and a first white digital data and a third digital image data including a plurality of color conversion digital data that converts the plurality of color digital data and a second white digital data according to whether the first digital image data is included in a first gray scale region or a second gray scale region which is higher than the first gray scale region; and a data driving circuit converting the second digital image data into data voltages and supplying the data voltages to the data lines.
Abstract:
An optical compensation method for an organic light emitting display device comprises: setting initial gain values of RGB subpixels; making each of the RGB subpixels converge on target luminance; selecting subpixels to emit light with the W subpixel from the RGB subpixels, and setting an initial gain value of the W subpixel; measuring color coordinates and luminance of the W subpixel to which the initial gain value is applied; calculating the luminance ratio of the W subpixel and the selected subpixels; adjusting maximum gains of the W subpixel and the selected subpixels; measuring maximum color coordinates and luminance ratio of the W subpixel and the selected subpixels; and making the W subpixel and the selected subpixels converge on target color coordinates and luminance.