公开(公告)号：US20210036029A1

公开(公告)日：2021-02-04

申请号：US16876984

申请日：2020-05-18

Applicant: Samsung Display Co., LTD.

Inventor： Joon Seok PARK ,  Myoung Hwa KIM ,  Tae Sang KIM ,  Hyung Jun KIM ,  Yeon Keon MOON ,  Geun Chul PARK ,  Sang Woo SOHN ,  Jun Hyung LIM ,  Kyung Jin JEON ,  Hye Lim CHOI

IPC: H01L27/12 ,  H01L27/32 ,  G02F1/1362

Abstract: A display device includes a substrate, a buffer layer disposed on the substrate, a first semiconductor layer disposed on the buffer layer and including an oxide semiconductor and a first active layer, a first gate insulating layer disposed on the first semiconductor layer and the buffer layer, a second semiconductor layer disposed on the first gate insulating layer and including an oxide semiconductor, a second active layer, and a first oxide layer on the first active layer, a second gate insulating layer disposed on the second semiconductor layer, a first conductive layer disposed on the second gate insulating layer, an insulating layer disposed on the first conductive layer, a second conductive layer disposed on the insulating layer, a passivation layer disposed on the second conductive layer, and a third conductive layer disposed on the first passivation layer.

公开(公告)号：US20210036028A1

公开(公告)日：2021-02-04

申请号：US16836651

申请日：2020-03-31

Applicant: Samsung Display Co., Ltd.

Inventor： Myoung Hwa KIM ,  Joon Seok PARK ,  So Young KOO ,  Tae Sang KIM ,  Yeon Keon MOON ,  Geun Chul PARK ,  Jun Hyung LIM ,  Kyung Jin JEON

IPC: H01L27/12 ,  H01L29/24 ,  H01L29/786 ,  H01L29/66

Abstract: A display device includes a pixel connected to a scan line, and a data line crossing the scan line, wherein the pixel includes a light-emitting element, a driving transistor configured to control a driving current supplied to the light-emitting element according to a data voltage applied from the data line, and a first switching transistor configured to apply the data voltage of the data line to the driving transistor according to a scan signal that is applied to the scan line. The driving transistor includes a first active layer including an oxide semiconductor, and a first oxide layer disposed on the first active layer and including an oxide semiconductor. The first switching transistor includes a second active layer including an oxide semiconductor, and the first oxide layer is not disposed on the second active layer.

公开(公告)号：US20200075641A1

公开(公告)日：2020-03-05

申请号：US16529516

申请日：2019-08-01

Applicant: Samsung Display Co., Ltd.

Inventor： Joon Seok PARK ,  Tae Sang KIM ,  Yeon Keon MOON ,  Geun Chul PARK ,  Jun Hyung LIM ,  Kyung Jin JEON

IPC: H01L27/12 ,  H01L27/15 ,  G09G3/32

Abstract: A display device includes: a substrate including a display area and a non-display area; a gate driver disposed on the substrate in the non-display area and including a plurality of stages that generate a gate signal and output the gate signal to the display area; a switching transistor and a driving transistor disposed on the substrate in the display area; and a light emitting diode connected to the driving transistor, wherein each of the plurality of stages may include a plurality of transistors, wherein a channel layer of the driving transistor includes a first oxide semiconductor material, and a channel layer of the plurality of transistors included in each of the plurality of stages includes a second oxide semiconductor material, wherein the first oxide semiconductor material is different from the second oxide semiconductor material, and wherein the second oxide semiconductor material may include tin.