公开(公告)号：US20230413620A1

公开(公告)日：2023-12-21

申请号：US18460345

申请日：2023-09-01

申请人： SAMSUNG DISPLAY CO., LTD.

发明人： Eunhyun KIM ,  Eunhye KO ,  Yeonhong KIM ,  Kyoungwon LEE ,  Sunhee LEE ,  Junhyung LIM

IPC分类号： H10K59/126 ,  H10K59/131

CPC分类号： H10K59/126 ,  H10K59/131 ,  H10K77/111

摘要： A display apparatus in which an area of a peripheral area may be reduced while having a simple structure, the display apparatus includes a substrate, a bottom metal layer on the substrate and including a first extension line extending from the peripheral area outside a display area into the display area, a semiconductor layer on the bottom metal layer, a gate layer on the semiconductor layer, a first metal layer on the gate layer, and a second metal layer on the first metal layer and including a first data line extending from the peripheral area into the display area and electrically coupled to the first extension line in the peripheral area.

公开(公告)号：US20220036824A1

公开(公告)日：2022-02-03

申请号：US17413617

申请日：2018-12-18

申请人： Samsung Display Co., Ltd.

发明人： Sunhee LEE ,  Seryeong KIM ,  Eunhye KO ,  Eoksu KIM ,  Eunhyun KIM

IPC分类号： G09G3/3233 ,  G09G3/3266 ,  G09G3/3275

摘要： A pixel circuit includes an organic light emitting element, a switching transistor configured to be turned on or off in response to a scan signal, a storage capacitor configured to store a data signal applied through a data line when the switching transistor is turned on, a driving transistor configured to allow a driving current corresponding to the data signal stored in the storage capacitor to flow into the organic light emitting element, and an emission control transistor implemented by an oxide thin film transistor, connected in series to the organic light emitting element and the driving transistor between a high power voltage and a low power voltage, and configured to be turned on or off in response to an emission control signal. The pixel circuit performs a back-biasing operation that compensates for a change in a threshold voltage of the emission control transistor by applying a back-biasing voltage to the emission control transistor.