Samsung Display Co., Ltd.

Eunkyung Koh

Sujin Choi

Jewon Yoo

Hyunjin Son

Byongug Park

Seulong Kim

Jaeyong Lee

Sunghun Lee

Minkyung Kim

Taekyung Kim

Hyosup Shin

Sunwoo Kang

Jinoh Kwag

Seungin Baek

Sanggu Lee

Younho Han

Daewook Kim

Illsoo Park

Youngmi Cho

Yongjo Kim

A display device includes pixel circuits disposed on a substrate, each of the pixel circuits comprising a transistor and a storage capacitor, display elements electrically connected to the pixel circuits, and a metal layer disposed between the substrate and the pixel circuits, the metal layer comprising through-holes, wherein the through-holes of the metal layer include a first through-hole, and a second through-hole disposed adjacent to the first through-hole.

Display device and electronic apparatus

An organic light-emitting device including: a first electrode, a hole transport region including a first hole transport layer (HTL), an emission layer, an electron transport region; and a second electrode; wherein the first HTL includes a first compound and a second compound, the emission layer includes a third compound and a fourth compound, the electron affinity of the second compound is greater than the electron affinity of the first compound, a lowest unoccupied molecular orbital (LUMO) energy level of the fourth compound is greater than a LUMO energy level of the third compound, the second compound and the third compound are different from each other, and the minimum anionic dissociation energy of the second compound is greater than the triplet energy of the third compound.

Organic light-emitting device

Growing community of inventors

Yongin-si, South Korea

Eunkyung Koh