An organic light emitting display, OLED, device comprising: a pixel area comprising at least a pixel having a first, second and third subpixel, wherein each of the first, second and third subpixels includes: a first electrode; a common organic light emitting layer disposed on the first electrode covering the whole pixel area; a common second electrode including a transparent metal material disposed on the organic light emitting layer covering the whole pixel area; an encapsulation film covering the second electrode; and a semi-transmissive electrode disposed overlying the encapsulation film on the second electrode, wherein there is a first distance between the first electrode and the semi-transmissive electrode in the first subpixel, there is a second distance between the first electrode and the semi-transmissive electrode in the second subpixel, and there is a third distance between the first electrode and the semi-transmissive electrode in the third subpixel, wherein the first distance, the second distance and the third distance are different from one another, further comprising: a first color filter disposed overlying the first subpixel on the encapsulation film in a first subpixel area; a second color filter disposed overlying the second subpixel on the encapsulation film in a second subpixel area; and a third color filter disposed overlying the third subpixel on the encapsulation film in a third subpixel area, and, further comprising: a photoreactive film disposed on the encapsulation film; a first optical auxiliary layer disposed overlying the first subpixel on the photoreactive film in the first subpixel; a second optical auxiliary layer disposed overlying the second subpixel on the photoreactive film in the second subpixel; and a third optical auxiliary layer disposed overlying the third subpixel on the photoreactive film in the third subpixel. a pixel area comprising at least a pixel having a first, second and third subpixel, wherein each of the first, second and third subpixels includes: a first electrode; a common organic light emitting layer disposed on the first electrode covering the whole pixel area; a common second electrode including a transparent metal material disposed on the organic light emitting layer covering the whole pixel area; an encapsulation film covering the second electrode; and a semi-transmissive electrode disposed overlying the encapsulation film on the second electrode, a first electrode; a common organic light emitting layer disposed on the first electrode covering the whole pixel area; a common second electrode including a transparent metal material disposed on the organic light emitting layer covering the whole pixel area; an encapsulation film covering the second electrode; and a semi-transmissive electrode disposed overlying the encapsulation film on the second electrode, wherein there is a first distance between the first electrode and the semi-transmissive electrode in the first subpixel, there is a second distance between the first electrode and the semi-transmissive electrode in the second subpixel, and there is a third distance between the first electrode and the semi-transmissive electrode in the third subpixel, wherein the first distance, the second distance and the third distance are different from one another, further comprising: a first color filter disposed overlying the first subpixel on the encapsulation film in a first subpixel area; a second color filter disposed overlying the second subpixel on the encapsulation film in a second subpixel area; and a third color filter disposed overlying the third subpixel on the encapsulation film in a third subpixel area, and, further comprising: a photoreactive film disposed on the encapsulation film; a first optical auxiliary layer disposed overlying the first subpixel on the photoreactive film in the first subpixel; a second optical auxiliary layer disposed overlying the second subpixel on the photoreactive film in the second subpixel; and a third optical auxiliary layer disposed overlying the third subpixel on the photoreactive film in the third subpixel. a first color filter disposed overlying the first subpixel on the encapsulation film in a first subpixel area; a second color filter disposed overlying the second subpixel on the encapsulation film in a second subpixel area; and a third color filter disposed overlying the third subpixel on the encapsulation film in a third subpixel area, and, further comprising: a photoreactive film disposed on the encapsulation film; a first optical auxiliary layer disposed overlying the first subpixel on the photoreactive film in the first subpixel; a second optical auxiliary layer disposed overlying the second subpixel on the photoreactive film in the second subpixel; and a third optical auxiliary layer disposed overlying the third subpixel on the photoreactive film in the third subpixel. a photoreactive film disposed on the encapsulation film; a first optical auxiliary layer disposed overlying the first subpixel on the photoreactive film in the first subpixel; a second optical auxiliary layer disposed overlying the second subpixel on the photoreactive film in the second subpixel; and a third optical auxiliary layer disposed overlying the third subpixel on the photoreactive film in the third subpixel.