公开(公告)号：US20200035136A1

公开(公告)日：2020-01-30

申请号：US16522279

申请日：2019-07-25

Applicant: Samsung Display Co., Ltd.

Inventor： Dae Youn CHO ,  Hyunho KIM ,  Hyojung KIM ,  Young-Joo NOH ,  Jongwoo PARK ,  Ju Hee LEE ,  Jinwoo CHAE ,  Youngtae CHOI

IPC: G09G3/00 ,  G09G3/3225 ,  G09G3/20 ,  G01R31/26

Abstract: An inspection system for a display cell having a display part and a plurality of data lines connected to first and second pixel units of the display part. An array test part and a lighting test part are located in a peripheral area around the display part. An inspection apparatus is configured to provide the array test part with an array control signal to block an array data signal from being applied to a plurality of data lines in a period in which a white image is displayed and to provide the lighting test part with a lighting control signal to block a lighting data signal from being applied to a plurality of data lines during a period in which a black image is displayed, during a drive reliability test mode for displaying a test image including the black image and the white image.

公开(公告)号：US20230335058A1

公开(公告)日：2023-10-19

申请号：US18301726

申请日：2023-04-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dae Youn CHO ,  Jong Woo PARK ,  Jun Seok OH ,  Yoon Suk CHOI ,  Young Tae CHOI

IPC: G09G3/3233 ,  G09G3/3258

CPC classification number: G09G3/3233 ,  G09G3/3258 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0202 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0247

Abstract: A pixel of a display device may pre-charge a light emitting element in non-emission periods immediately before emission periods by varying a voltage level of an initialization voltage. As a result, a luminance non-uniformity phenomenon that may occur as the result of a deterioration deviation of the light emitting element may be removed or reduced.

公开(公告)号：US20230335056A1

公开(公告)日：2023-10-19

申请号：US18066981

申请日：2022-12-15

Applicant: Samsung Display Co., LTD.

Inventor： Dae Youn CHO ,  Jong Woo PARK ,  Sang Kil KIM ,  Ji Ho MOON ,  Young Tae CHOI

IPC: G09G3/3233 ,  G09G3/3266

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G2300/0819 ,  G09G2310/0202 ,  G09G2310/0272 ,  G09G2330/028 ,  G09G2310/08 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0233 ,  G09G2320/043

Abstract: A pixel including: a light emitting element; a first transistor connected between a first node and a second node, and to generate a driving current to flow from a first power line to a second power line through the light emitting element; a second transistor connected between a data line and the first node; a third transistor connected between the second node and a third node corresponding to a gate electrode of the first transistor; a fourth transistor connected between the third node and a third power line; a fifth transistor connected between the first power line and the first node; a sixth transistor connected between the second node and a fourth node corresponding to a first electrode of the light emitting element; a seventh transistor connected between the fourth node and a fourth power line; and an eighth transistor connected between the fourth node and a fifth power line.

公开(公告)号：US20210134918A1

公开(公告)日：2021-05-06

申请号：US17034852

申请日：2020-09-28

Applicant: Samsung Display Co., LTD.

Inventor： Ji Ho MOON ,  Jong Woo PARK ,  Dae Youn CHO ,  Young Tae CHOI

IPC: H01L27/32

Abstract: An organic light emitting display device may include a first active pattern disposed on a substrate and including a first region, a second region, and a third region; a first gate electrode disposed on the first active pattern and forming a first transistor together with the first region and the second region; a second gate electrode disposed on the first active pattern and forming a second transistor together with the second region and the third region; a third gate electrode disposed on the first gate electrode, overlapping the second region, and forming a storage capacitor together with the first gate electrode; a metal pattern disposed between the first active pattern and the third gate electrode and overlapping the second region; and an organic light emitting diode electrically connected to the first transistor, the second transistor, and the storage capacitor.

公开(公告)号：US20210074801A1

公开(公告)日：2021-03-11

申请号：US17101584

申请日：2020-11-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ju Hee LEE ,  Jongwoo PARK ,  Youngtae CHOI ,  Dae Youn CHO

IPC: H01L27/32 ,  H01L51/00

Abstract: A display apparatus includes a substrate; a lower conductive layer including a protective pattern and an auxiliary conductive pattern on the substrate; a buffer layer on the lower conductive layer; an active pattern on the buffer layer and overlapping the protective pattern; a first insulation layer on the active pattern; and a first conductive layer on the first insulation layer, the first conductive layer including a gate electrode overlapping the active pattern and a load matching line overlapping the auxiliary conductive pattern.