Patent ID: 8445896

Claim:
An organic light-emitting diode (OLED) device with high color rendering comprising: a base plate, being a glass substrate; a first conductive layer, being made of indium tin oxide (ITO) and disposed on the base plate for being as an anode; a hole transport layer, being formed on the first conductive layer; a first white light emitting layer, being disposed on the first conductive layer, wherein the first white light emitting layer is made of phosphorescent light-emitting materials and can emitting a phosphorescent white light with a first spectrum, moreover the first white light emitting layer consists of a host of TCTA, a blue dye of FIrpic, a green dye of Ir(ppy) 3 , and a crimson dye of Ir(piq) 2 (acac), in which the concentration of FIrpic, Ir(ppy) 3 and Ir(piq) 2 (acac) relative to the concentration of the host are respectively ranged from 0.01 wt. % to 25 wt %, from 0.01 wt % to 10 wt % and from 0.01 wt % to 10 wt %; a second white light emitting layer, being disposed on the first white light emitting layer, and consisting of a deep blue dye of MDP3FL and an orange (yellow) dye of Rubrene, wherein the concentration of Rubrene is ranged from 0.01 wt % to 25 wt % relative to the concentration of the deep blue dye; an electron transport layer, being disposed on the second white light emitting layer; a second conductive layer, being disposed on the electron transport layer for being as a cathode; and wherein the second white light emitting layer is made of fluorescent light-emitting materials and can emitting a fluorescent white light with a second spectrum, and the first spectrum and the second spectrum are complementary to each other so as to increase the color rendering of the emitted white light.