公开(公告)号：US11682345B2

公开(公告)日：2023-06-20

申请号：US17860883

申请日：2022-07-08

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Hee Jang ,  Kyong Hwan Oh ,  Jae Sic Lee

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2320/0238

Abstract: A display device according to an embodiment of the present disclosure is provided. The display device comprises a light emitting diode, a first transistor connected between an initialization power source and an anode of the light emitting diode and having a gate electrode connected to an initialization line, and an initialization driver for supplying an initialization signal to the initialization line. The initialization driver supplies the initialization signal every frame when driven at a first frequency and supplies the initialization signal every set of two or more frames when driven at a second frequency different from the first frequency.

公开(公告)号：US11217149B2

公开(公告)日：2022-01-04

申请号：US16897436

申请日：2020-06-10

Applicant: Samsung Display Co., Ltd.

Inventor： Hai Jung In ,  Ki Myeong Eom ,  Kyong Hwan Oh

IPC: G09G3/20

Abstract: A display device including pixels connected to first scan lines, second scan lines, third scan lines, emission control lines, and data lines, a first scan driver for supplying a first scan signal to each of the first scan lines in a first period, a second scan driver for supplying a second scan signal to each of the second scan lines in the first period, a third scan driver for supplying a third scan signal to each of the third scan lines in the first period and a second period, an emission driver for supplying an emission control signal to the emission control lines in the first period and the second period, and a data driver for supplying a data signal to the data lines in the first period, in which a width of the second scan signal is greater than that of the first scan signal.

公开(公告)号：US11056043B2

公开(公告)日：2021-07-06

申请号：US16890319

申请日：2020-06-02

Applicant: Samsung Display Co., LTD.

Inventor： Kyong Hwan Oh ,  Ji Hyun Ka ,  Ki Myeong Eom ,  Hai Jung In ,  Jin Jeon ,  Won Kyu Kwak ,  Hyun Lee ,  Hwan Soo Jang ,  Jin Tae Jeong

IPC: G09G3/20 ,  G09G3/3266

Abstract: A display device includes pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver to supply a scan signal to each of the first scan lines at a first frequency to drive the display device at a first driving frequency, and to supply the scan signal to each of the first scan lines at a second frequency to drive the display device at a second driving frequency lower than the first driving frequency; a second scan driver to supply a scan signal to each of the second scan lines at the first frequency to drive the display device at the first driving frequency, and to supply the scan signal to each of the second scan lines at the second frequency to drive the display device at the second driving frequency; an emission driver to supply an emission control signal to each of the emission control lines at the first frequency; and a data driver to supply a data signal to each of the data lines in response to the scan signal supplied to each of the first scan lines.

公开(公告)号：US20210201764A1

公开(公告)日：2021-07-01

申请号：US17078088

申请日：2020-10-22

Applicant: Samsung Display Co., LTD.

Inventor： Kyong Hwan Oh ,  Jin Tae Jeong ,  Ji Hyun Ka ,  Won Kyu Kwak ,  Hyung Jun Park ,  Chang Soo Pyon ,  Ji Eun Lee ,  Hai Jung In ,  Won Mi Hwang

IPC: G09G3/32

Abstract: A display device may include: pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver to supply a first scan signal to the first scan lines in a first period and a second period; a second scan driver to supply a second scan signal to the second scan lines in the first period without supplying the second scan signal to the second scan lines in the second period; an emission driver to supply an emission control signal to the emission control lines in the first period and the second period; a data driver configured to supply data signals to the data lines in the first period without supplying the second scan signal to the second scan lines in the second period; and a power supply to supply a first initialization power source to the pixels through a first initialization and to supply a second initialization power source to the pixels through a second power line.

公开(公告)号：US10700146B2

公开(公告)日：2020-06-30

申请号：US15838693

申请日：2017-12-12

Applicant: SAMSUNG DISPLAY CO., LTD. ,  IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)

Inventor： Chong Chul Chai ,  Oh Kyong Kwon ,  Nack Hyeon Keum ,  Kyong Hwan Oh ,  Bo Yong Chung ,  An Su Lee

IPC: G09G3/3233 ,  G09G3/3225 ,  H01L27/32

Abstract: A pixel includes first through fourth transistors and storage capacitor. The first transistor controls an amount of current flowing from a first driving power source to a second driving power source, via an organic light-emitting diode, based on a voltage of a first node. The second transistor is coupled between a first electrode of the first transistor and the first node, and is turned on when a scan signal is supplied to a scan line. The third transistor is coupled between a second electrode of the first transistor and a reference power source, and is turned on when the scan signal is supplied. The fourth transistor is coupled between an anode electrode of the organic light-emitting diode and a data line, and is turned on when the scan signal is supplied. The storage capacitor is coupled between the first node and the anode electrode of the organic light-emitting diode.

公开(公告)号：US12205514B2

公开(公告)日：2025-01-21

申请号：US18531708

申请日：2023-12-07

Applicant: Samsung Display Co., Ltd.

Inventor： Hai Jung In ,  Ki Myeong Eom ,  Kyong Hwan Oh

IPC: G09G3/3233 ,  G09G3/20

Abstract: A pixel including a light emitting device, a first transistor including a first electrode connected to a first node electrically connected to a first power source, a second transistor connected between a data line and the first node and turned on in response to a first scan signal supplied to a first scan line, a third transistor connected between a third node connected to a second electrode of the first transistor and a second node and turned on in response to a second scan signal supplied to a second scan line, a fourth transistor turned on in response to a third scan signal, and a storage capacitor connected between the first power source and the second node, in which the second scan signal overlaps the first scan signal, and a width of the second scan signal is greater than twice a width of the first scan signal.

公开(公告)号：US12118924B2

公开(公告)日：2024-10-15

申请号：US18231719

申请日：2023-08-08

Applicant: Samsung Display Co., LTD.

Inventor： Kyong Hwan Oh ,  Jin Tae Jeong ,  Ji Hyun Ka ,  Won Kyu Kwak ,  Hyung Jun Park ,  Chang Soo Pyon ,  Ji Eun Lee ,  Hai Jung In ,  Won Mi Hwang

IPC: G09G3/32 ,  G09G3/3233

CPC classification number: G09G3/32 ,  G09G3/3233 ,  G09G2310/0278 ,  G09G2330/028

Abstract: A display device includes pixels, and a power supply to supply a first initialization voltage to the pixels through a first initialization power line, and to supply a second initialization voltage to the pixels through a second initialization power line. At least one of the pixels includes a first transistor, a second transistor, a third transistor, and a light emitting element.

公开(公告)号：US11527197B2

公开(公告)日：2022-12-13

申请号：US17517087

申请日：2021-11-02

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Ae Park ,  Hwan Soo Jang ,  Kyong Hwan Oh

IPC: G09G3/32

Abstract: A display device includes: a plurality of scan lines; and a plurality of sub-pixels, each of the sub-pixels comprising a driving transistor, a plurality of transistors connected to the plurality of scan lines, and a light-emitting element electrically connected to the driving transistor. Each of the sub-pixels comprises an active layer comprising a channel region, a first electrode, and a second electrode of each of the plurality of transistors. A first scan line among the plurality of scan lines comprises a first extension extended in a first direction and a first protrusion extended in a second direction intersecting the first direction. The active layer overlaps with the first protrusion in a plan view.

公开(公告)号：US11257422B2

公开(公告)日：2022-02-22

申请号：US17078088

申请日：2020-10-22

Applicant: Samsung Display Co., LTD.

Inventor： Kyong Hwan Oh ,  Jin Tae Jeong ,  Ji Hyun Ka ,  Won Kyu Kwak ,  Hyung Jun Park ,  Chang Soo Pyon ,  Ji Eun Lee ,  Hai Jung In ,  Won Mi Hwang

IPC: G09G3/30 ,  G09G3/32

Abstract: A display device includes a power supply to supply a first initialization power source to the pixels through a first initialization and to supply a second initialization power source to the pixels through a second power line.

公开(公告)号：US10825394B2

公开(公告)日：2020-11-03

申请号：US16575661

申请日：2019-09-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Mi Hae Kim ,  Hyun Ji Kang ,  Kyung Hoon Kim ,  Jae Du Noh ,  Jeong Hun Bang ,  Kyong Hwan Oh

IPC: G09G3/325 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3291

Abstract: A display device is described comprising sub-pixels that include: a first driving transistor and a second driving transistor, each of which control a current flowing from a first electrode to a second electrode in accordance with a data voltage applied to a gate electrode; a light emitting element connected to the second electrodes of the first driving transistor and the second driving transistor; and a first contact hole and a second contact hole which are disposed in the gate electrode, wherein the gate electrode includes a first gate electrode overlapping the first driving transistor in a thickness direction and a second gate electrode overlapping the second driving transistor in the thickness direction, and the first contact hole is located in the first gate electrode, the second contact hole is located in the second gate electrode, and the first contact hole and the second contact hole overlap each other.