A fairly pure white OLED with CIE coordinates of (0.33, 0.34) at 4 000 cd/m~2 is realized when the thickness of TBVB is 10 nm and that of rubrene is 0.15 nm.

• 当TBVB和Rubrene的厚度分别为10；0.；15nm时；器件在亮度为4000cd/m2时发光色坐标为(0