公开(公告)号：US20240346999A1

公开(公告)日：2024-10-17

申请号：US18595433

申请日：2024-03-05

Applicant: Samsung Display Co., Ltd.

Inventor： HYOJUNG KIM ,  YOO-YOUNG PARK ,  JIMYOUNG SEO ,  JI-HYEON SON ,  SEUNGBO SHIM ,  JEONG YONG LEE ,  Hyesun SUNG

IPC: G09G3/3225 ,  G09G3/3266

CPC classification number: G09G3/3225 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/045

Abstract: A display device is disclosed that includes a pixel circuit, a light emitting element, and a driving circuit. The pixel circuit includes a plurality of pixel transistors. The light emitting element is electrically connected to the pixel circuit. The driving circuit is configured to provide a prescribed signal to the pixel circuit and includes a plurality of driving transistors. A gate signal is applied to a gate of at least one transistor among the plurality of pixel transistors and the plurality of driving transistors. The gate signal includes a first interval in which a DC signal is applied and a second interval in which an AC signal is applied. The second interval includes a first sub-interval in which a first voltage is applied and a second sub-interval in which a second voltage different from the first voltage is applied. The first voltage is a negative voltage and the second voltage is a positive voltage or about 0 V.

公开(公告)号：US20250120260A1

公开(公告)日：2025-04-10

申请号：US18674243

申请日：2024-05-24

Applicant: Samsung Display Co., LTD.

Inventor： Hyesun Sung ,  HYOJUNG KIM ,  SEUNGBO SHIM ,  YOO-YOUNG PARK ,  JI-HYEON SON ,  JEONG YONG LEE ,  DEOK JUN CHOI

IPC: H10K59/122 ,  G09G3/00 ,  H10K50/13

Abstract: A display device includes a substrate on which a display area and a non-display area adjacent to the display area are defined, a first electrode disposed in the display area on the substrate, a pixel defining layer disposed on the substrate and exposing at least a portion of the first electrode, a partition wall disposed on the pixel defining layer, where the partition wall includes a first portion including a metal material and a second portion surrounding the first portion and including a metal oxide, a light emission layer disposed on the first electrode and the partition wall, where at least a portion of the light emission layer is cut off by the partition wall, and a second electrode disposed on the light emission layer and the partition wall.

公开(公告)号：US20250046245A1

公开(公告)日：2025-02-06

申请号：US18603221

申请日：2024-03-13

Applicant: Samsung Display Co., Ltd.

Inventor： HYOJUNG KIM ,  DEOK JUN CHOI ,  HYUN-CHANG KANG ,  YUNHEE KWAK ,  YOO-YOUNG PARK ,  Hyesun Sung ,  JI-HYEON SON ,  SEUNGBO SHIM ,  JEONG YONG LEE

IPC: G09G3/3233

Abstract: A display device is disclosed that includes a display panel including a plurality of pixels configured to receive an initialization voltage through an initialization voltage line, a controller configured to output a voltage control signal for controlling a voltage level of the initialization voltage, and a power manager configured to provide the initialization voltage to the initialization voltage line, change the voltage level of the initialization voltage to an initialization level at or after a power-on time at which a power starts to be supplied and before a display-on time at which an image starts to be displayed based on the voltage control signal, and change the voltage level of the initialization voltage to a target level corresponding to a luminance of the image at or after the display-on time based on the power control signal.