LIGHT-EMITTING DEVICE AND APPARATUS INCLUDING THE SAME

• Main Authors: LEE HAE-MYONG, CHO YUN-HYONG, KIM DONGAN, MOON JI-YOUNG, LEE DONG-HEE, HAN WON-SUK, LEE HAKOONG, LEE CHEOL-SOON, LEE JI-HYE, YOON JI-HWAN
• Format: Patent
• Language: Chinese; English
• Published: 06.04.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

The invention provides a light-emitting device and an apparatus including the same. The light-emitting device includes: a first electrode; a second electrode facing the first electrode; light-emitting units in the number of n between the first electrode and the second electrode; and a charge-generation unit(s) in the number of n-1 between the adjacent light-emitting units. n is a natural number of 2 or more. The light-emitting units each include an emission layer, and at least one of the charge-generation unit(s) includes an n-type charge-generation layer, a p-type charge-generation layer, and an interlayer between the n-type charge-generation layer and the p-type charge-generation layer. The p-type charge-generation layer includes a first material and a second material, the first material includes a hole-transporting organic compound, an inorganic insulation compound, or any combination thereof, the second material includes at least one inorganic semiconductor compound, the interlayer consists of a third mat