The present invention relates to an organic light-emitting diode, which includes: a light-transmitting substrate, an anode formed on the light-transmitting substrate, a hole transport layer formed on the anode, a light-emitting layer formed on the hole transport layer, an electron transport layer formed on the light-emitting layer, and a cathode formed on the electron transport layer. The light-emitting layer includes a plurality of pixel units, each of which includes red, green, blue, and infrared sub-pixel points. The red, green, blue, and infrared sub-pixel points are driven by thin-film transistors. The organic light-emitting diode of the present invention combines color displaying and infrared displaying in a single component and realizes switchability between color displaying and infrared displaying in the same component. The organic light-emitting diode greatly reduces the manufacture cost, shows wide applicability, and facilitates popularization