oled device and a method for preparing an optical resonant layer, a display

The present invention discloses a preparation method thereof OLED device having an optical resonant layer, a display. The OLED device includes an OLED and a white color filter, to form the R sub-pixel, G sub-pixel, B sub-pixels and the W sub-pixel region G is provided an optical sub-pixels corresponding to the at least between the color filter and the white OLED resonant layer. Having optical resonant layer OLED device according to the present invention, by providing the optical resonant layer, even with a low color gamut color filter, may be good good filter, high efficiency of monochromatic light, in particular, solves the white OLED + CF art display quality is not high. Further, OLED devices of this invention also significantly reduces power consumption. And does not require the use of FMM (Fine Metal Mask, precision metal mask), reducing the process cost.