公开(公告)号：US20230088642A1

公开(公告)日：2023-03-23

申请号：US17859555

申请日：2022-07-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ja Kyoung JIN ,  Yu Chol KIM ,  Ji Hye KIM ,  Seong Oh YEOM

IPC: G09G3/3266

Abstract: A display device includes a display panel including a pixel coupled to first to fourth scan lines, an emission control line, and a data line, a scan driver which supplies a first scan signal to the first scan line, a second scan signal to the second scan line, a third scan signal to the third scan line, and a fourth scan signal to the fourth scan line, an emission driver which supplies an emission control signal to the emission control line, a data driver which supplies a data signal to the data line, and a timing controller which controls the scan driver, the emission driver, and the data driver. Each of the second and third scan signals has a gate-on level during a partial period of one frame, and is maintained at a gate-off level during a remaining period of the one frame, other than the partial period.

公开(公告)号：US20210065620A1

公开(公告)日：2021-03-04

申请号：US17000404

申请日：2020-08-24

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Wook YANG ,  Yu Chol KIM ,  Ji Hye KIM ,  Young Ha SOHN ,  Jae Hyeon JEON

IPC: G09G3/3208

Abstract: The present disclosure relates to a display device and a method of driving the same. The display device includes a substrate, a display panel including a first display area including first pixels, a second display area including second pixels, and a third display area disposed between the first and second display areas and including third pixels, and a component disposed between the substrate and the display panel so as to overlap the second display area. Transmittance of the second display area is higher than transmittance of the first display area and transmittance of the third display area, and the third pixels are controlled such that a luminance gradually changes according to a distance from the second display area.

公开(公告)号：US20220139301A1

公开(公告)日：2022-05-05

申请号：US17447792

申请日：2021-09-15

Applicant: Samsung Display Co., Ltd.

Inventor： Yu Chol KIM ,  Joon Chul GOH ,  Jin Wook YANG ,  Bong Hyun YOU

IPC: G09G3/32

Abstract: A display device includes pixels, and first, second, and third gate lines and data lines connected to the pixels. At least one of the pixels includes a light emitting element, a first transistor connected between a first power source and the light emitting element for driving the light emitting element according to a voltage of a first node, a second transistor connected between the first node and a corresponding data line, and driven according to a voltage of a corresponding first gate line, a capacitor connected between the first node and a second node between the first transistor and the light emitting element, a third transistor between the second node and an initialization power line, and driven according to a voltage of a corresponding second gate line, and a fourth transistor connected between the first and second nodes, and driven according to a voltage of a corresponding third gate line.

公开(公告)号：US20210065628A1

公开(公告)日：2021-03-04

申请号：US16890328

申请日：2020-06-02

Applicant: Samsung Display Co., Ltd.

Inventor： Yu Chol KIM ,  Jin Wook YANG ,  Ji Hye KIM ,  Young Ha SOHN ,  Jae Hyeon JEON

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

Abstract: A display device driving method includes: providing a reference voltage for compensating a threshold voltage of a driving transistor in a pixel; and providing a data signal to the pixel, wherein providing the reference voltage, and providing the data signal to the pixel are performed in a first frame period, and a second frame period successive to the first frame period, wherein the display device driving method further comprises providing a compensation signal generated by comparing a data signal with a reference voltage provided in a previous frame period of each frame period to the pixel before providing the reference voltage is ended.

公开(公告)号：US20200302884A1

公开(公告)日：2020-09-24

申请号：US16898011

申请日：2020-06-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sang Jun PARK ,  Kyun Ho KIM ,  Shim Ho YI ,  Yong Jin SHIN ,  Yu Chol KIM

IPC: G09G3/36 ,  G09G3/20 ,  G02F1/13357 ,  G09G3/3258 ,  G09G3/34 ,  H01L27/32

Abstract: A display device capable of setting an optimal output enable value according to a color pattern and a method for driving the display device. A timing controller is configured to receive an image signal from an external source, identify a color pattern and set an output enable value corresponding to the identified color pattern. A scan driver is configured to receive the output enable value and generate a first scan signal having a first turn-on signal and a second scan signal adjacent to the first scan signal and having a second turn-on signal. The scan driver may adjust an interval between the first turn-on signal and the second turn-on signal based on the output enable value.

公开(公告)号：US20240169926A1

公开(公告)日：2024-05-23

申请号：US18206409

申请日：2023-06-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seong Oh YEOM ,  Yu Chol KIM ,  Ji Hye KIM ,  Jin Wook YANG ,  Eui Myeong CHO ,  Ja Kyoung JIN

IPC: G09G3/3266 ,  G09G3/3233

CPC classification number: G09G3/3266 ,  G09G3/3233 ,  G09G2310/0262

Abstract: A display device includes pixels including a light-emitting element, and an initialization transistor connected between an anode electrode of the light-emitting element and a first initialization power line to which a voltage of initialization power is supplied, and turned on when an initialization scan signal is supplied, and an initialization scan driver which supplies the initialization scan signal. The initial scan driver supplies an i-th (i is a natural number) initial scan signal to overlap an (i−1)-th initial scan signal, and supplies an (i+1)-th initial scan signal so as not to overlap the i-th initial scan signal, and the initialization scan signal is set to a gate-on voltage.

公开(公告)号：US20240054948A1

公开(公告)日：2024-02-15

申请号：US18547680

申请日：2021-08-23

Applicant: Samsung Display Co., LTD.

Inventor： Ji Hye KIM ,  Joon Chul GOH ,  Yu Chol KIM ,  Jin Wook YANG ,  Ja Kyoung JIN

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/08 ,  G09G2310/0262 ,  G09G2310/061 ,  G09G2340/0435

Abstract: A display device includes: a display panel including pixels having light-emitting elements; a timing control unit for variably changing the driving frame frequency of the display panel according to the input frame frequency of digital video data; and a data driving unit for outputting data voltages according to the digital video data, wherein the display panel operates at a first frame frequency for a first frame period and operates at a second frame frequency, which is lower than the first frame frequency, for a second frame period, the second frame period includes a data addressing period in which a data voltage corresponding to each of the pixels is applied to the pixels, and a blank period in which no data voltage is applied to each of the pixels, and the blank period includes a period of initializing a first electrode of a light-emitting element into an initialization voltage.

公开(公告)号：US20220139333A1

公开(公告)日：2022-05-05

申请号：US17365532

申请日：2021-07-01

Applicant: Samsung Display Co., Ltd.

Inventor： Ja Kyoung JIN ,  Yu Chol KIM ,  Ji Hye KIM ,  Jin Wook YANG ,  Seong Oh YEOM

IPC: G09G3/3291 ,  G09G3/3233

Abstract: A display device includes: a pixel connected to a first scan line, a second scan line, and a data line, and including a light emitting element and a storage capacitor; and a timing controller configured to drive the pixel in a normal mode in which a driving frequency is maintained constant or a frequency variable mode according to a variable frequency signal supplied from outside, wherein in the normal mode, a first electrode voltage of the light emitting element is initialized in response to a data voltage being supplied to the storage capacitor, and wherein in the frequency variable mode, the first electrode voltage of the light emitting element is not initialized in response to the data voltage being supplied to the storage capacitor.