公开(公告)号：US11830412B2

公开(公告)日：2023-11-28

申请号：US17953288

申请日：2022-09-26

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: G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/3233 ,  G09G2310/0251 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/08 ,  G09G2340/0435

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：US11373578B2

公开(公告)日：2022-06-28

申请号：US16991860

申请日：2020-08-12

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/3266 ,  G09G3/20

Abstract: A display device includes: a first pixel connected to a first data line and a first scan line; a second pixel connected to the first data line and a second scan line; a first scan driver connected to a first scan start line and the first scan line; and a second scan driver connected to a second scan start line and the second scan line. In a first frame period, the second scan start line is to be suppled with a second scan start signal having a turn-on level, after a first period elapses after a first scan start signal having a turn-on level is supplied to the first scan start line. In a second frame period, a difference between a time at which the first scan start signal having the turn-on level is supplied and a time at which the second scan start signal having the turn-on level is supplied corresponds to a second period. The second period is shorter than the first period.

公开(公告)号：US20210343227A1

公开(公告)日：2021-11-04

申请号：US17367396

申请日：2021-07-04

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

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：US11935458B2

公开(公告)日：2024-03-19

申请号：US17850894

申请日：2022-06-27

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0278

Abstract: A display device includes: a first pixel connected to a first data line and a first scan line; a second pixel connected to the first data line and a second scan line; a first scan driver connected to a first scan start line and the first scan line; and a second scan driver connected to a second scan start line and the second scan line. In a first frame period, the second scan start line is to be suppled with a second scan start signal having a turn-on level, after a first period elapses after a first scan start signal having a turn-on level is supplied to the first scan start line. In a second frame period, a difference between a time at which the first scan start signal having the turn-on level is supplied and a time at which the second scan start signal having the turn-on level is supplied corresponds to a second period. The second period is shorter than the first period.

公开(公告)号：US11869412B2

公开(公告)日：2024-01-09

申请号：US17567827

申请日：2022-01-03

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/3266 ,  G09G3/20

CPC classification number: G09G3/2092 ,  G09G2300/0861 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2330/00

Abstract: A display device including a pixel connected to a first scan line, a second scan line, a third scan line, an emission control line, and a data line; a first driver supplying a first scan signal to the first scan line in a first period; a second driver supplying a second scan signal to the second scan line in the first period; a third driver supplying a third scan signal to the third scan line in the first and second periods; an emission driver supplying a control signal to the emission control line in the first and second periods; and a data driver supplying a data signal to the data line in the first period, in which a width of the second scan signal is greater than that of the first scan signal to overlap a plural first scan signals respectively supplied to first scan lines during the first period.

公开(公告)号：US11455938B2

公开(公告)日：2022-09-27

申请号：US17367396

申请日：2021-07-04

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 ,  G09G3/3233

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：US11935481B2

公开(公告)日：2024-03-19

申请号：US17524019

申请日：2021-11-11

Applicant: Samsung Display Co., Ltd.

Inventor： Seung Han Jo ,  Min Chae Kwak ,  Kyeong Hwa Kim ,  Mi Hae Kim ,  Kyong Hwan Oh ,  Su Mi Jang ,  Jae-Ho Choi

IPC: G09G3/3258

CPC classification number: G09G3/3258 ,  G09G2330/028

Abstract: Provided is a display device, which includes: a reference voltage line formed along a circular outer line and configured to provide a reference voltage; a first reference voltage auxiliary line electrically connected to the reference voltage line and formed to be parallel with a predetermined interval; and a conductive line forming a contact with the reference voltage line and the first reference voltage auxiliary line and configured to provide the reference voltage to a cathode.

公开(公告)号：US11881148B2

公开(公告)日：2024-01-23

申请号：US17953288

申请日：2022-09-26

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: G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/3233 ,  G09G2310/0251 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/08 ,  G09G2340/0435

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：US11741885B2

公开(公告)日：2023-08-29

申请号：US17586711

申请日：2022-01-27

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

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

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：US11410598B2

公开(公告)日：2022-08-09

申请号：US16907984

申请日：2020-06-22

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/32

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.