公开(公告)号：US20160267839A1

公开(公告)日：2016-09-15

申请号：US15160829

申请日：2016-05-20

Applicant: Samsung Display Co., Ltd.

Inventor： Jin-Wook Yang

IPC: G09G3/3233 ,  G09G3/3283

CPC classification number: G09G3/3233 ,  G09G3/3283 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/0295 ,  G09G2320/045

Abstract: A pixel circuit for increasing accuracy of current sensing of an organic light-emitting diode (OLED) display is disclosed. In one aspect, the pixel circuit includes an OLED, a driving circuit, and first to third transistors. The driving circuit is configured to adjust a magnitude of a current flowing through the OLED based at least in part on a data signal received from a data line. The first transistor is configured to electrically connect the data line and a holding capacitor based at least in part on a scan signal. The second transistor is configured to electrically connect the holding capacitor and the driving circuit based at least in part on a write control signal. The third transistor is configured to electrically connect the data line and an anode electrode of the OLED based at least in part on a sensing control signal.

公开(公告)号：US09343011B2

公开(公告)日：2016-05-17

申请号：US13706155

申请日：2012-12-05

Applicant: Samsung Display Co., Ltd.

Inventor： Jin-Wook Yang ,  Bon-Seog Gu ,  Woo-Seok Han

IPC: G09G3/30 ,  G09G3/32

CPC classification number: G09G3/3233 ,  G09G2300/0809 ,  G09G2300/0861 ,  G09G2320/0295 ,  G09G2320/045

Abstract: A pixel capable of displaying an image with uniform brightness is disclosed. In one aspect, the pixel includes an organic light emitting diode (OLED), a first transistor for controlling an amount of current that flows from a first power supply to a second power supply via the OLED in response to a voltage applied to a first node. The pixel also includes a second transistor that is coupled between a bias power supply and the first node and whose gate electrode is coupled to an emission control line. The pixel further includes a third transistor that is coupled between an anode electrode of the OLED and a feedback line and whose gate electrode is coupled to a control line.

Abstract translation: 公开了能够显示具有均匀亮度的图像的像素。 在一个方面，像素包括有机发光二极管（OLED），第一晶体管，用于响应于施加到第一节点的电压，控制经由OLED从第一电源流向第二电源的电流量 。 像素还包括耦合在偏置电源和第一节点之间的第二晶体管，其栅电极耦合到发射控制线。 像素还包括耦合在OLED的阳极和反馈线之间并且其栅电极耦合到控制线的第三晶体管。

公开(公告)号：US12236874B2

公开(公告)日：2025-02-25

申请号：US18347168

申请日：2023-07-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sehyuk Park ,  Youngha Sohn ,  Jin-Wook Yang ,  Donggyu Lee ,  Jae-Hyeon Jeon

IPC: G09G3/3233

Abstract: A display apparatus includes a display panel, a gate driver, a data driver and an emission driver. The display panel includes a pixel. The gate driver is configured to output a gate signal to the pixel. The data driver is configured to output a data voltage to the pixel. The emission driver is configured to output an emission signal to the pixel. The pixel includes a light emitting element, a driving switching element configured to apply a driving current to the light emitting element and a bias switching element configured to apply a bias voltage to the driving switching element. The display apparatus increases a level of the bias voltage when a duration of a light emission time of the pixel is increased.

公开(公告)号：US12183240B2

公开(公告)日：2024-12-31

申请号：US18106418

申请日：2023-02-06

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 including sub-pixels coupled to a first scan line and located in first through N-th sub-pixel columns, where N is an even number greater than or equal to 2, a second pixel group including sub-pixels coupled to the first scan line and located in (N+1)-th through 2N-th sub-pixel columns, a third pixel group including sub-pixels coupled to a second scan line adjacent to the first scan line and located in the first through N-th sub-pixel columns, and a fourth pixel group including sub-pixels coupled to the second scan line and located in the (N+1)-th through 2N-th sub-pixel columns. 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：US11961463B2

公开(公告)日：2024-04-16

申请号：US18196137

申请日：2023-05-11

Applicant: Samsung Display Co., LTD.

Inventor： Jin-Wook Yang ,  Yu-Chol Kim ,  Donggyu Lee ,  Jaekeun Lim ,  Jae-Hyeon Jeon

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0216 ,  G09G2310/0267 ,  G09G2330/028

Abstract: A pixel connected to a first scan line includes a light-emitting element including an anode and a cathode, a first transistor including a first electrode, a second electrode, and a gate electrode connected to a first node, a first capacitor connected between the first node and a second node, a second transistor connected between the second electrode of the first transistor and the first node including a gate electrode connected to the first scan line, a third transistor including a first electrode, a second electrode connected to the second node, and a gate electrode connected to the first scan line, and a fourth transistor including a first electrode connected to a first driving voltage line, a second electrode connected to the first electrode of the first transistor, and a gate electrode connected to the first scan line.

公开(公告)号：US11955066B2

公开(公告)日：2024-04-09

申请号：US18132242

申请日：2023-04-07

Applicant: Samsung Display Co., LTD.

Inventor： Jin-Wook Yang ,  Sehyuk Park ,  Donggyu Lee ,  Jae-Hyeon Jeon

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2330/021

Abstract: A display device includes: a display panel which displays an image corresponding to each of a plurality of frames, and a source driver which drives the display panel. The plurality of frames includes a first frame operating at a first operating frequency, and a second frame operating at a frequency higher than the first operating frequency. The first frame includes a write cycle section, a hold cycle section, and a blank section including a standby section. The source driver operates in a normal driving mode during the write cycle section and the hold cycle section, and operates in a low-power driving mode during the standby section.

公开(公告)号：US11875723B2

公开(公告)日：2024-01-16

申请号：US17814411

申请日：2022-07-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sehyuk Park ,  Hae-Kwan Seo ,  Youngha Sohn ,  Jin-Wook Yang

IPC: G09G3/32 ,  G09G3/20 ,  G09G3/3275 ,  G09G3/36 ,  G09G3/3291 ,  G09G3/3208 ,  G09G3/3266

CPC classification number: G09G3/2092 ,  G09G3/3208 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3291 ,  G09G3/3685 ,  G09G2300/0426 ,  G09G2310/0272 ,  G09G2310/0275 ,  G09G2380/02

Abstract: A display device, which is a slidable display device, includes a display panel and a data driver. The display panel includes a first display area, a second display area that is in one of a taken-in position and a taken-out-of position of the display device, and a pad area located on one side of the first display area. The display panel includes pixels disposed in the first and second display areas, and is driven in a first mode in which an image is displayed in the first display area or a second mode in which an image is displayed in the first and second display areas. The data driver generates data voltages based on pixel data, outputs the data voltages to the pixels, and controls an order of the data voltages output in the second mode.

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.