公开(公告)号：US20180158406A1

公开(公告)日：2018-06-07

申请号：US15798812

申请日：2017-10-31

Applicant: Samsung Display Co., Ltd.

Inventor： Keunwoo KIM ,  Sooyoung PARK ,  Joonghyun PARK ,  Dongwoo KIM ,  Kyoung-Ju SHIN

IPC: G09G3/3233 ,  G09G3/3283

CPC classification number: G09G3/3233 ,  G09G3/3283 ,  G09G2230/00 ,  G09G2300/0426 ,  G09G2300/0439 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0216 ,  G09G2320/0233 ,  G09G2320/045 ,  H05B33/0896

Abstract: A display device includes pixels configured to emit light of various intensity in accordance with driving signals, data lines, scan lines, and a power supply unit configured to supply at least one driving voltage to the pixels. At least one of the pixels may comprise a switching transistor having a first electrode connected to one of the data lines and a second electrode connected to a first node, and a gate electrode connected to one of the scan lines, a driving transistor connected between the power supply unit and an organic light emitting diode, a storage capacitor having a first terminal connected to the first node and a second terminal connected to a gate electrode of the driving transistor, and a first transistor connected between the first node and a first electrode of the driving transistor.

公开(公告)号：US20250014497A1

公开(公告)日：2025-01-09

申请号：US18442101

申请日：2024-02-15

Applicant: Samsung Display Co., Ltd.

Inventor： Keunwoo KIM

IPC: G09G3/20

Abstract: A driver is disclosed that includes an input circuit that transmits an input signal to a first node in response to at least one of a clock signal and an inverted clock signal, and an inverter that generates an output signal based on a voltage of the first node. Each of the input circuit and the inverter includes a first transistor and a second transistor connected to each other, an active area of the first transistor and an active area of the second transistor include different materials, and a gate terminal of the second transistor is electrically connected to a semiconductor material spaced apart from the active area of the second transistor.

公开(公告)号：US20230377520A1

公开(公告)日：2023-11-23

申请号：US18362335

申请日：2023-07-31

Applicant: Samsung Display Co., LTD.

Inventor： Keunwoo KIM

IPC: G09G3/3241 ,  G09G3/3266 ,  G09G3/3291

CPC classification number: G09G3/3241 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2310/0278 ,  G09G2300/0439

Abstract: A pixel includes an organic light emitting diode that includes first and second terminals. A driving transistor generates a driving current, and includes a first terminal for a first power supply voltage, a second terminal connected to the first terminal of the organic light emitting diode, and a gate terminal for an initialization voltage. The first switching transistor includes a first terminal connected to a first node, a second terminal connected to the gate terminal of the driving transistor, and a gate terminal for a data initialization gate signal. The second switching transistor includes a first terminal for the initialization voltage, a second terminal connected to the first node, a first gate terminal for the data initialization gate signal, and a second gate terminal for a light emitting element initialization signal. The first terminal of the organic light emitting diode is connected to the first node.

公开(公告)号：US20160365048A1

公开(公告)日：2016-12-15

申请号：US14996250

申请日：2016-01-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Keunwoo KIM

IPC: G09G3/36

Abstract: A display device includes a data driver connected to j- and (j+1)-th data lines, a scan driver connected to i- and (i+1)-th scan lines, and a display panel including k- and (k+1)-th pixel units. The k-th pixel unit includes an i-th transistor with a gate electrode connected to the i-th scan line, a first electrode connected to the j-th data line, and a second electrode connected to an i-th pixel electrode. The (k+1)-th pixel unit includes an (i+1)-th transistor having a gate electrode connected to the (i+1)-th scan line, a first electrode connected to the j-th data line, and a second electrode connected to an (i+1)-th pixel electrode. The i- and (i+1)-th transistors are turned on at a same time, and a kickback voltage of the i-th transistor is less than a kickback voltage of the (i+1)-th transistor.

Abstract translation: 显示装置包括连接到第j和第（j + 1）数据线的数据驱动器，连接到第i和第（i + 1）扫描线的扫描驱动器，以及包括k-和（k +1）像素单位。 第k个像素单元包括具有连接到第i个扫描线的栅电极的第i晶体管，连接到第j个数据线的第一电极和连接到第i个像素电极的第二电极。 第（k + 1）个像素单元包括具有连接到第（i + 1）扫描线的栅电极的第（i + 1）晶体管，连接到第j数据线的第一电极，以及 连接到第（i + 1）像素电极的第二电极。 第i和第（i + 1）晶体管同时导通，第i晶体管的反冲电压小于第（i + 1）晶体管的反冲电压。

公开(公告)号：US20230309343A1

公开(公告)日：2023-09-28

申请号：US18089457

申请日：2022-12-27

Applicant: Samsung Display Co., LTD.

Inventor： Keunwoo KIM ,  Taewook KANG ,  Yeoungkeol WOO ,  Woo-Seok JEON

IPC: H10K59/121

CPC classification number: H10K59/1213 ,  H10K59/1216

Abstract: A display device includes a substrate, an active pattern disposed on the substrate, and including a first area, a second area, a (1-1)th channel area, a (1-2)th channel area, and a third area disposed between the (1-1)th channel area and the (1-2)th channel area, a first insulating layer disposed on the substrate and covering the active pattern, a second insulating layer which is disposed on the first insulating layer and in which an opening overlapping the (1-2)th channel area, the second area, and the third area is defined, a first gate electrode disposed on the first insulating layer and overlapping the (1-1)th channel area the (1-2)th channel area, respectively, and a high dielectric layer disposed on the first insulating layer and the second insulating layer, covering the first gate electrode, and filling the opening.

公开(公告)号：US20220262881A1

公开(公告)日：2022-08-18

申请号：US17526343

申请日：2021-11-15

Applicant: Samsung Display Co., Ltd.

Inventor： Keunwoo KIM

IPC: H01L27/32 ,  H01L51/56

Abstract: A display device may include a substrate, a first active layer disposed on the substrate and including a first source region, a first drain region, and a first channel region disposed between the first source region and the first drain region, a first gate insulating layer covering the first active layer on the substrate, first gate electrodes disposed in opposite sides of the first channel region on the first gate insulating layer, a second gate insulating layer covering the first gate electrodes on the first gate insulating layer, a second gate electrode disposed in a central portion of the first channel region on the second gate insulating layer, and a first connection electrode disposed on the second gate electrode and connected to the first and second gate electrodes.

公开(公告)号：US20210249542A1

公开(公告)日：2021-08-12

申请号：US17086545

申请日：2020-11-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jaeseob LEE ,  Meejae KANG ,  Yoonho KHANG ,  Keunwoo KIM ,  Hanbit KIM ,  Thanhtien NGUYEN

IPC: H01L29/786 ,  H01L27/32

Abstract: A display device including: a first thin film transistor (TFT) including a first semiconductor layer and a first gate electrode, the first semiconductor layer including a first channel region, a first source region, and a first drain region; a third TFT including a third semiconductor layer and a third gate electrode, the third semiconductor layer including a third channel region, a third source region, and a third drain region, wherein a leakage current of the third TFT in an off-state is less than a leakage current of the first TFT in the off-state; and a pixel electrode connected to one of the first source region and the first drain region, wherein the one of the first source region and the first drain region is connected to the third TFT.

公开(公告)号：US20160216570A1

公开(公告)日：2016-07-28

申请号：US14836601

申请日：2015-08-26

Applicant: Samsung Display Co., Ltd.

Inventor： Gunwoo YANG ,  Keunwoo KIM ,  Youngseung KIM ,  Sooyoung PARK ,  Kichan JEON ,  Munsoo PARK

IPC: G02F1/1343

CPC classification number: G02F1/134309 ,  G02F1/133707 ,  G02F1/1368 ,  G02F2001/134345 ,  G02F2201/40

Abstract: A liquid crystal display (LCD) device improves an aperture ratio and stabilizing a storage voltage, including a first substrate; a second substrate opposed to the first substrate; a liquid crystal layer between the first substrate and the second substrate; a gate line and a data line on the first substrate; a semiconductor layer overlapping the gate line; a first drain electrode overlapping the gate line and the semiconductor layer and connected to the data line; a first source electrode overlapping the gate line and the semiconductor layer; a first sub-pixel electrode connected to the first source electrode; a second drain electrode overlapping the gate line and the semiconductor layer and connected to the first drain electrode; a second source electrode overlapping the gate line and the semiconductor layer; and a second sub-pixel electrode connected to the second source electrode. The second source electrode overlaps the gate line more than the first source electrode does.

Abstract translation: 液晶显示器（LCD）装置提高开口率并稳定包括第一基板的存储电压; 与第一基板相对的第二基板; 第一基板和第二基板之间的液晶层; 第一基板上的栅极线和数据线; 与栅极线重叠的半导体层; 与栅极线和半导体层重叠并连接到数据线的第一漏电极; 与栅极线和半导体层重叠的第一源电极; 连接到第一源电极的第一子像素电极; 与栅极线和半导体层重叠并连接到第一漏电极的第二漏电极; 与栅极线和半导体层重叠的第二源电极; 以及连接到第二源电极的第二子像素电极。 第二源电极比第一源电极重叠栅极线。

公开(公告)号：US20230130200A1

公开(公告)日：2023-04-27

申请号：US17871089

申请日：2022-07-22

Applicant: Samsung Display Co., LTD.

Inventor： Keunwoo KIM

IPC: G09G3/3241 ,  G09G3/3291 ,  G09G3/3266

Abstract: A pixel includes an organic light emitting diode that includes first and second terminals. A driving transistor generates a driving current, and includes a first terminal for a first power supply voltage, a second terminal connected to the first terminal of the organic light emitting diode, and a gate terminal for an initialization voltage. The first switching transistor includes a first terminal connected to a first node, a second terminal connected to the gate terminal of the driving transistor, and a gate terminal for a data initialization gate signal. The second switching transistor includes a first terminal for the initialization voltage, a second terminal connected to the first node, a first gate terminal for the data initialization gate signal, and a second gate terminal for a light emitting element initialization signal. The first terminal of the organic light emitting diode is connected to the first node.

公开(公告)号：US20230048817A1

公开(公告)日：2023-02-16

申请号：US17719849

申请日：2022-04-13

Applicant: Samsung Display Co., LTD.

Inventor： Keunwoo KIM ,  Taewook KANG ,  Jaeseob LEE ,  Sanggun CHOI

IPC: H01L27/32 ,  H01L51/56

Abstract: A display device includes a first active layer disposed on a substrate and including a source area, a resistance area, and a drain area spaced apart from the source area by the resistance area, a first gate electrode and a second gate electrode disposed on the first active layer and overlapping the first active layer, and a first power voltage electrode disposed on the first gate electrode and the second gate electrode and overlapping the resistance area in a cross-sectional view. In this case, the resistance area of the active layer and the first power voltage electrode may form a floating node capacitor. Accordingly, in a case that the first gate electrode and the second gate electrode form a dual gate transistor with the active layer, an instantaneous voltage increase may be suppressed and current leakage may be prevented.