公开(公告)号：US20210295779A1

公开(公告)日：2021-09-23

申请号：US17340482

申请日：2021-06-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Hwi KIM ,  Na Young KIM ,  Yong Jae KIM ,  Chul Ho KIM ,  Jin JEON

IPC: G09G3/3266 ,  G09G3/3291

Abstract: A display device including: pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver configured to supply a first scan signal to each of the first scan lines at a first frequency; a second scan driver configured to supply a second scan signal to each of the second scan lines at a second frequency corresponding to a driving frequency of the pixels; an emission driver configured to supply an emission control signal to each of the emission control lines at the first frequency; a data driver configured to supply a data signal to each of the data lines at the second frequency; and a timing controller configured to control the first scan driver, the second scan driver, the emission driver, and the data driver.

公开(公告)号：US20230260451A1

公开(公告)日：2023-08-17

申请号：US18136956

申请日：2023-04-20

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Hwi KIM ,  Na Young KIM ,  Jin JEON

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2320/0247 ,  G09G2310/062 ,  G09G2310/08

Abstract: A display device includes pixels which are connected to first scan lines, second scan lines, third scan lines, emission control lines, and data lines; a scan driver which supplies a bias scan signal to each of the third scan lines at a first frequency and supplies a scan signal to each of the first scan line and the second scan line at a second frequency which corresponds to an image refresh rate of each of the pixels; an emission driver which supplies an emission control signal to each of the emission control lines at the first frequency; a data driver which supplies a data signal to each of the data lines at the second frequency; and a timing controller which controls driving of the scan driver, the emission driver, and the data driver.

公开(公告)号：US20240153456A1

公开(公告)日：2024-05-09

申请号：US18404210

申请日：2024-01-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Hwi KIM ,  Na Young KIM ,  Chul Ho KIM ,  Wang Jo LEE ,  Jin JEON

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  H10K59/121 ,  H10K59/124 ,  H10K59/131

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  H10K59/1213 ,  H10K59/1216 ,  H10K59/124 ,  H10K59/131 ,  H01L27/1251

Abstract: A pixel circuit includes first to fifth transistors, a capacitor, and a light emitting element. The first transistor is coupled between first and second power lines, and includes a gate electrode coupled to a first node and a back-gate electrode coupled to a second node. The second transistor is coupled between a data line and the first node, and includes a gate electrode coupled to a first scan line. The third transistor is coupled between a third power line and the first node, and includes a gate electrode coupled to a reference scan line. The fourth transistor is coupled between a second node and a fourth power line, and includes a gate electrode coupled to a second scan line. The fifth transistor is coupled between a first power line and the one electrode of the first transistor, and includes a gate electrode coupled to a light-emitting control line.

公开(公告)号：US20230282161A1

公开(公告)日：2023-09-07

申请号：US18315263

申请日：2023-05-10

Applicant: Samsung Display Co., LTD.

Inventor： Na Young KIM ,  Dong Hwi KIM ,  Jin JEON

IPC: G09G3/32 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3225 ,  G09G3/3258

CPC classification number: G09G3/32 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3225 ,  G09G3/3258 ,  G09G2330/028 ,  G09G2320/0247 ,  G09G2310/0278

Abstract: A pixel for a display device includes a light-emitting element, a first transistor including a first electrode electrically connected to a first node and controlling a driving current, a second transistor electrically connected between a data line and the first node and being turned on in response to a first scan signal supplied through a first scan line, a third transistor electrically connected between the second node and a third node electrically connected to a second electrode of the first transistor and being turned on in response to the first scan signal, and a fourth transistor being turned on in response to a second scan signal supplied through a second scan line, and applying a bias voltage to the first transistor. The fourth transistor is turned on at a first frequency. The second and third transistors are turned on at a second frequency different from the first frequency.

公开(公告)号：US20180322831A1

公开(公告)日：2018-11-08

申请号：US15879262

申请日：2018-01-24

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Hye KIM ,  Dong Hwi KIM ,  Jin JEON

IPC: G09G3/3266

CPC classification number: G09G3/3266 ,  G09G2310/0213 ,  G09G2310/08 ,  G09G2320/0252 ,  G09G2320/08 ,  G09G2340/0442

Abstract: A display device includes: first and second pixel regions, wherein the display device displays an effective image in the first and second pixel regions, corresponding to a first mode, and displays an effective image in the second pixel region, corresponding to a second mode; first pixels and first scan lines in the first pixel region; second pixels and second scan lines in the second pixel region; a first scan driver comprising first scan stages configured to drive at least some of the first scan lines; a second scan driver comprising second scan stages configured to drive the second scan lines; and a timing controller configured to supply first and second start signals to the first and second scan drivers, wherein, when the display device is driven in the second mode, a width of the second start signal is set wider than a width of the first start signal.

公开(公告)号：US20220270546A1

公开(公告)日：2022-08-25

申请号：US17740965

申请日：2022-05-10

Applicant: Samsung Display Co., LTD.

Inventor： Na Young KIM ,  Dong Hwi KIM ,  Jin JEON

IPC: G09G3/32 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3225 ,  G09G3/3258

Abstract: A pixel for a display device includes a light-emitting element, a first transistor including a first electrode electrically connected to a first node and controlling a driving current, a second transistor electrically connected between a data line and the first node and being turned on in response to a first scan signal supplied through a first scan line, a third transistor electrically connected between the second node and a third node electrically connected to a second electrode of the first transistor and being turned on in response to the first scan signal, and a fourth transistor being turned on in response to a second scan signal supplied through a second scan line, and applying a bias voltage to the first transistor. The fourth transistor is turned on at a first frequency. The second and third transistors are turned on at a second frequency different from the first frequency.

公开(公告)号：US20210125543A1

公开(公告)日：2021-04-29

申请号：US16881738

申请日：2020-05-22

Applicant: Samsung Display Co., LTD.

Inventor： Na Young KIM ,  Dong Hwi KIM ,  Jin JEON

IPC: G09G3/32

Abstract: A pixel for a display device includes a light-emitting element, a first transistor including a first electrode electrically connected to a first node and controlling a driving current, a second transistor electrically connected between a data line and the first node and being turned on in response to a first scan signal supplied through a first scan line, a third transistor electrically connected between the second node and a third node electrically connected to a second electrode of the first transistor and being turned on in response to the first scan signal, and a fourth transistor being turned on in response to a second scan signal supplied through a second scan line, and applying a bias voltage to the first transistor. The fourth transistor is turned on at a first frequency. The second and third transistors are turned on at a second frequency different from the first frequency.

公开(公告)号：US20230154406A1

公开(公告)日：2023-05-18

申请号：US18155233

申请日：2023-01-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Hwi KIM ,  Na Yong KIM ,  Chul Ho KIM ,  Wang Jo LEE ,  Jin JEON

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  H10K59/124 ,  H10K59/131 ,  H10K59/121

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  H10K59/124 ,  H10K59/131 ,  H10K59/1213 ,  H10K59/1216 ,  H01L27/1255

Abstract: A pixel circuit includes first to fifth transistors, a capacitor, and a light emitting element. The first transistor is coupled between first and second power lines, and includes a gate electrode coupled to a first node and a back-gate electrode coupled to a second node. The second transistor is coupled between a data line and the first node, and includes a gate electrode coupled to a first scan line. The third transistor is coupled between a third power line and the first node, and includes a gate electrode coupled to a reference scan line. The fourth transistor is coupled between a second node and a fourth power line, and includes a gate electrode coupled to a second scan line. The fifth transistor is coupled between a first power line and the one electrode of the first transistor, and includes a gate electrode coupled to a light-emitting control line.

公开(公告)号：US20230130226A1

公开(公告)日：2023-04-27

申请号：US18088551

申请日：2022-12-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong Hwi KIM ,  Na Young KIM ,  Yong Jae KIM ,  Chul Ho KIM ,  Jin JEON

IPC: G09G3/3266 ,  G09G3/3291

Abstract: A display device including: pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver configured to supply a first scan signal to each of the first scan lines at a first frequency; a second scan driver configured to supply a second scan signal to each of the second scan lines at a second frequency corresponding to a driving frequency of the pixels; an emission driver configured to supply an emission control signal to each of the emission control lines at the first frequency; a data driver configured to supply a data signal to each of the data lines at the second frequency; and a timing controller configured to control the first scan driver, the second scan driver, the emission driver, and the data driver.

公开(公告)号：US20220262303A1

公开(公告)日：2022-08-18

申请号：US17735438

申请日：2022-05-03

Applicant: Samsung Display Co., Ltd.

Inventor： Dong Hwi KIM ,  Na Young KIM ,  Jin JEON

IPC: G09G3/32

Abstract: A display device includes pixels which are connected to first scan lines, second scan lines, third scan lines, emission control lines, and data lines; a scan driver which supplies a bias scan signal to each of the third scan lines at a first frequency and supplies a scan signal to each of the first scan line and the second scan line at a second frequency which corresponds to an image refresh rate of each of the pixels; an emission driver which supplies an emission control signal to each of the emission control lines at the first frequency; a data driver which supplies a data signal to each of the data lines at the second frequency; and a timing controller which controls driving of the scan driver, the emission driver, and the data driver.