Patent ID: 8946689
Filing Date: 2015-02-03
Classification: H01L

Abstract:
1. A white-light source, comprising: a first microcavity organic light emitting diode (OLED) configured to emit a narrow spectrum of blue light; a second microcavity OLED configured to emit a narrow spectrum of green light; and a third microcavity OLED configured to emit a narrow spectrum of red light, wherein the blue light emitted by the first OLED, green light emitted by the second OLED, and red light emitted by the third OLED combine to produce white illuminating light with a color rendering index that is greater than 80, wherein each of the microcavity OLEDs comprises: wherein the hole transport layer comprises a 1,1-bis[(di -4-tolylamino)phenyl]cyclohexane (TAPC) layer adjacent to the emitting layer and a poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) layer adjacent to the ITO layer.