Lg Display Co., Ltd.

Sang-Soon Noh

Sang-Gul Lee

Seong-Pil Cho

Kyung-Mo Son

Kye-Chul Choi

Chan-Ho Kim

Jin-Kyu Roh

Jung-Doo Jin

Dong-Yup Kim

Hee-Jin Jung

Ki-Hyun Kwon

Hyun-Gyo Jeong

Kyoung-Soo Lee

Byeong-Keun Kim

Sung-Ho Moon

Yong-Bin Kang

Jun-Seuk Lee

Won-Ho Son

Jang-Dae Kim

Sun-young Choi

Won-Sang Ryu

Dong-Chae Shin

A display apparatus can include a first thin-film transistor including a first active layer having a first polysilicon material, a first gate electrode overlapping the first active layer, a first electrode and a second electrode; a second thin-film transistor including a second active layer having an oxide semiconductor, a second gate electrode overlapping the second active layer, a third electrode and a fourth electrode; and a first emitting electrode of a light emitting element electrically connected to the second electrode of the first thin-film transistor. Also, one end of the first active layer having the first polysilicon material is electrically connected to one or the other end of the second active layer having the oxide semiconductor.

Display apparatus

A display apparatus including a first thin-film transistor, a second thin-film transistor and a third thin-film transistor is provided. The first thin-film transistor includes a first active layer composed of a polysilicon material, a first gate electrode overlapping the first active layer such that a first gate insulating layer is interposed therebetween, a first source electrode and a first drain electrode. The first gate electrode includes n layers. The first source electrode and the first drain electrode are connected to the first active layer. The second thin-film transistor includes a second active layer composed of a polysilicon material, a second gate electrode overlapping the second active layer such that a first gate insulating layer is interposed therebetween, a second source electrode and a second drain electrode. The second gate electrode includes n+1 layers. The second source electrode and the second drain electrode are connected to the second active layer.

Disclosed is an organic electroluminescent device (OELD) includes a first substrate including a pixel region that includes an element region and a light emission region; a storage capacitor disposed at the element region, and including a first storage electrode, a first buffer layer on the first storage electrode, and a second storage electrode on the first buffer layer; a second buffer layer on the storage capacitor; a plurality of TFTs on the second buffer layer at the element region; and a passivation layer on the plurality of TFTs, wherein the storage capacitor overlaps at least one of the plurality of TFTs.

Organic electroluminescent device

Growing community of inventors

Gyeonggi-do, South Korea

Sang-Soon Noh