公开(公告)号：US11978394B2

公开(公告)日：2024-05-07

申请号：US17246430

申请日：2021-04-30

Applicant: Samsung Display Co., Ltd.

Inventor： Taehoon Kim ,  Soon-Dong Kim ,  Jaekeun Lim ,  Joon-Chul Goh ,  Bonghyun You

IPC: G09G3/3225 ,  H10K59/121

CPC classification number: G09G3/3225 ,  H10K59/121 ,  G09G2330/021

Abstract: A display device includes: a first partial emission driver configured to provide first emission control signals to a first partial panel area of the display panel, and a second partial emission driver configured to provide second emission control signals to a second partial panel area of the display panel; and a power management block configured to: provide a first voltage and a second voltage to the emission driver, in response to the first partial emission driver generating the first emission control signals; and provide a third voltage and a fourth voltage to the emission driver in response to the second partial emission driver generating the second emission control signals; and an emission control block configured to receive the first voltage and the second voltage from the power management block and to provide a first clock signal and a second clock signal to the emission driver.

公开(公告)号：US11869445B2

公开(公告)日：2024-01-09

申请号：US17864762

申请日：2022-07-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Changnoh Yoon ,  Sangan Kwon ,  Soon-Dong Kim ,  Taehoon Kim ,  Eun Sil Yun

IPC: G09G3/3275 ,  G09G3/3266

CPC classification number: G09G3/3275 ,  G09G3/3266 ,  G09G2310/0278

Abstract: A display device includes a display panel, a data driver, a scan driver, and a driving controller. The display panel includes a first display area and a second display area, which operate at different frequencies from each other in a multi-frequency mode. The driving controller controls the data driver and the scan driver. The driving controller generates boundary compensation data by compensating for boundary image signals, which are input to correspond to a boundary area of the first display area in the multi-frequency mode and drives the data driver based on a compensation image signal including the boundary compensation data.

公开(公告)号：US11862096B2

公开(公告)日：2024-01-02

申请号：US17863805

申请日：2022-07-13

Applicant: Samsung Display Co., Ltd.

Inventor： Soon-Dong Kim ,  Taehoon Kim ,  Jin-Wook Yang ,  Eun Sil Yun ,  Changnoh Yoon

IPC: G09G3/3258

CPC classification number: G09G3/3258 ,  G09G2310/0278 ,  G09G2330/021

Abstract: Disclosed is a display device including a display panel including a plurality of pixels and a voltage generator providing an anode initialization voltage to the pixels. The display panel is divided into a first display area operating at a first operating frequency and a second display area operating at a second operating frequency. While pixels, which correspond to the first display area, from among the plurality of pixels are driven, the anode initialization voltage has a first voltage level. While pixels in the second display area from among the plurality of pixels are driven, the anode initialization voltage has a second voltage level different from the first voltage level.

公开(公告)号：US11769458B2

公开(公告)日：2023-09-26

申请号：US17461261

申请日：2021-08-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jin-Wook Yang ,  Soon-Dong Kim ,  Changnoh Yoon

IPC: G09G3/3275 ,  G09G3/3258 ,  G09G3/3266

CPC classification number: G09G3/3275 ,  G09G3/3258 ,  G09G3/3266 ,  G09G2300/0452 ,  G09G2310/0297

Abstract: A display device includes a display unit including a first pixel, a second pixel disposed adjacent to the first pixel in a first direction, a third pixel disposed adjacent to the first pixel in a second direction crossing the first direction, and a fourth pixel disposed adjacent to the third pixel in the first direction. Each of the first to fourth pixels includes a first sub-pixel and a second sub-pixel. The display device further includes a data driver that outputs a plurality of data voltages, a selective output unit that outputs the data voltages to the first to fourth pixels in a different order for each of a plurality of frames, and a scan driver that outputs a first scan signal to the first and second pixels and outputs a second scan signal, which is delayed from the first scan signal, to the third and fourth pixels.

公开(公告)号：US11574578B2

公开(公告)日：2023-02-07

申请号：US17256238

申请日：2019-06-27

Applicant: Samsung Display Co., Ltd.

Inventor： Jin-Wook Yang ,  Soon-Dong Kim ,  Chang-Noh Yoon ,  Eun-Gyeong Choe

IPC: G09G3/20

Abstract: A display panel includes a first pixel group and a second pixel group each including sub-pixels coupled to the first scan line, a third pixel group and a fourth pixel group each including sub-pixels coupled to the second scan line. The first pixel group and the second pixel group are driven during a first scan on time in which the first scan line is driven. Consecutive N−1 sub-pixels among the sub-pixels of the third pixel group and one sub-pixel among the sub-pixels of the fourth pixel group are driven during a first portion of a second scan on time in which the second scan line is driven, and consecutive N−1 sub-pixels among the sub-pixels of the fourth pixel group and one sub-pixel among the sub-pixels of the third pixel group are driven during a second portion of the second scan on time.

公开(公告)号：US11514866B2

公开(公告)日：2022-11-29

申请号：US17358083

申请日：2021-06-25

Applicant: Samsung Display Co., Ltd.

Inventor： Sangan Kwon ,  Soon-Dong Kim ,  Taehoon Kim ,  Hui Nam ,  Junhee Moon ,  Eun Sil Yun ,  Changnoh Yoon

IPC: G09G3/3275 ,  G09G3/3266

Abstract: Provided is a display device. The display device includes a display panel that includes a first display region and a second display region, a data driving circuit configured to drive a plurality of data lines, a scan driving circuit configured to drive a plurality of scan lines, and a driving controller configured to control the data driving circuit and the scan driving circuit so as to operate the first display region and the second display region at different frequencies when an operation mode is a multi-frequency mode, wherein the driving controller changes the operation mode to a normal mode when a difference between an image signal of a current frame of the first display region and an image signal of a previous frame of the first display region is equal to or greater than a reference value during the multi-frequency mode.

公开(公告)号：US11423846B2

公开(公告)日：2022-08-23

申请号：US17240111

申请日：2021-04-26

Applicant: Samsung Display Co., Ltd.

Inventor： Changnoh Yoon ,  Sangan Kwon ,  Soon-Dong Kim ,  Taehoon Kim ,  Hui Nam ,  Eun Sil Yun ,  Seungjae Lee

IPC: G09G3/3275 ,  G09G3/3266

Abstract: A display device includes a display panel, a data driving circuit which drives a plurality of data lines, a scan driving circuit which drives a plurality of scan lines, and a driving controller which controls the data driving circuit and the scan driving circuit such that the display panel is divided into a first display region and a second display region during a multi-frequency mode and the first display region and the second display region are respectively operated at different frequencies, where the driving controller changes an operation mode to a normal mode when a still image and a moving image are simultaneously displayed in the first display region during the multi-frequency mode and the duration of the still image reaches a predetermined time.

公开(公告)号：US11410610B2

公开(公告)日：2022-08-09

申请号：US17185358

申请日：2021-02-25

Applicant: Samsung Display Co., LTD.

Inventor： Hae-Kwan Seo ,  Seongheon Cho ,  Soon-Dong Kim ,  Taehoon Kim

IPC: G09G3/3266 ,  G09G3/3233 ,  G09G3/3275

Abstract: A scan driving circuit of a display device includes a first output terminal electrically connected to a first scan line, a second output terminal electrically connected to a second scan line, a first masking circuit electrically connecting the first output terminal and the second output terminal and outputting, as a first scan signal, a second scan signal to the first output terminal, a driving circuit outputting the second scan signal to the second output terminal in response to clock signals and a carry signal, and a second masking circuit masking the second scan signal to a predetermined level in response to the second masking signal, wherein the first masking circuit electrically disconnects the first output terminal from the second output terminal in response to a first masking signal.

公开(公告)号：US11315457B2

公开(公告)日：2022-04-26

申请号：US17231388

申请日：2021-04-15

Applicant: Samsung Display Co., Ltd.

Inventor： Sangan Kwon ,  Jinoh Kwag ,  Soon-Dong Kim ,  Taehoon Kim ,  Hui Nam ,  Bonghyun You ,  Eun Sil Yun ,  Changnoh Yoon

IPC: G09G3/00 ,  G09G3/3275 ,  G09G3/3266 ,  G09G5/14 ,  G09G3/3233

Abstract: A display device includes a driving controller which provides a first start signal and a second start signal corresponding to an operation mode to a scan driving circuit. The scan driving circuit includes a first scan driving circuit having first dummy driving stages and first driving stages which sequentially drive scan lines corresponding to a first display region among a plurality of scan lines in synchronization with the first start signal and a second scan driving circuit having second dummy driving stages and second driving stages which sequentially drive scan lines corresponding to a second display region among the plurality of scan lines in synchronization with the second start signal. The first dummy driving stages are disposed on a first side surface of the display panel and the second dummy driving stages are disposed on a second side surface of the display panel.

公开(公告)号：US09626903B2

公开(公告)日：2017-04-18

申请号：US14195654

申请日：2014-03-03

Applicant: Samsung Display Co., Ltd.

Inventor： Soon-Dong Kim ,  Yang-Hwa Choi ,  Cheol-Min Kim ,  Hyung-Ryul Kang

IPC: G09G3/30 ,  G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0852

Abstract: An organic light-emitting diode (OLED) display panel is disclosed. In one aspect, the panel includes a first transistor which receives a data signal transferred through a data line in response to a scan signal transferred through a gate line and a second transistor which receives a first power signal in response to a bias signal and outputs a source-driving signal. The panel also includes a third transistor which receives the source-driving signal in response to an output signal of the first transistor and outputs a driving signal, an organic light-emitting element which comprises a first electrode being connected to the third transistor and which receives the driving signal and a second electrode which receives a second power signal. The panel further includes a fourth transistor which is electrically connected to the third transistor and which receives the driving signal.