公开(公告)号：US12211445B2

公开(公告)日：2025-01-28

申请号：US16299336

申请日：2019-03-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyo Jin Lee ,  Hui Nam ,  Se Hyuk Park

IPC: G11C19/28 ,  G06F1/32 ,  G09G3/20 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3291 ,  H10K59/131

Abstract: A driving device includes: an output unit configured to supply a first voltage, or a second voltage lower than the first voltage, to an output terminal in response to a voltage of a first node and a voltage of a second node; a first driver configured to control the voltage of the second node in response to a signal of a first input terminal and a signal of a second input terminal; a second driver configured to control the voltage of the first node in response to a voltage of a third input terminal and the voltage of the second node; and a first transistor configured to apply a third voltage lower than the first voltage to the first node or the second node.

公开(公告)号：US11626074B2

公开(公告)日：2023-04-11

申请号：US17283430

申请日：2019-08-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jin Young Roh ,  Hui Nam ,  Se Hyuk Park ,  Hyo Jin Lee

IPC: G09G3/3233 ,  G09G3/3266

Abstract: A display device includes a display panel including a plurality of pixels each coupled to a write scan line, a compensation scan line, an initialization scan line, a bypass scan line, and a data line; and a scan driver configured to supply i (where i is a natural number) write scan pulses, compensation scan pulses, initialization scan pulses, and bypass scan pulses to the write scan line, the compensation scan line, the initialization scan line, and the bypass scan line, respectively, during a first period corresponding to one frame period, and to supply j (where j is a natural number other than i) write scan pulses to the write scan line during each of frame periods of a second period including a plurality of consecutive frame periods.

公开(公告)号：US11594188B1

公开(公告)日：2023-02-28

申请号：US17738303

申请日：2022-05-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Se Hyuk Park ,  Seung Jae Lee

IPC: G09G3/3291 ,  G09G3/20 ,  G09G3/36

Abstract: A display device including: a display panel including first and second display areas, and including pixels in the first and second display areas; and a data driver to output data signals to the pixels through a channels arranged along a first direction, wherein the channels include a first channel group corresponding to the first display area and a second channel group corresponding to the second display area, wherein some of the pixels emit light in different colors and have a first pixel arrangement along the first direction, and based on channel selection information about the first or second channel groups, the data driver outputs first data signals in a first output order along the first direction corresponding to the first pixel arrangement through the first channel group, and outputs second data signals in a second output order different from the first output order through the second channel group.

公开(公告)号：US11423834B2

公开(公告)日：2022-08-23

申请号：US17142131

申请日：2021-01-05

Applicant: Samsung Display Co., Ltd.

Inventor： Se Hyuk Park ,  Hong Soo Kim ,  Jin Young Roh ,  Hyo Jin Lee ,  Jae Keun Lim

IPC: G09G3/3291 ,  G09G3/3266 ,  G09G3/20 ,  G09G3/3233

Abstract: A display device includes: a pixel configured to display an image based on image data and a reference voltage; a controller configured to generate reference voltage data corresponding to the reference voltage for restraining leakage current in the pixel based on a frame frequency; and a power supply configured to generate the reference voltage based on the reference voltage data and supply the reference voltage to the pixel.

公开(公告)号：US11367379B1

公开(公告)日：2022-06-21

申请号：US17409865

申请日：2021-08-24

Applicant: Samsung Display Co., Ltd.

Inventor： Se Hyuk Park ,  Jae Keun Lim ,  Hong Soo Kim ,  Jin Young Roh ,  Hyo Jin Lee

IPC: G09G3/20

Abstract: A display device according to an embodiment of the disclosure includes a timing controller, a scan driver including a plurality of stages connected to a plurality of clock signal lines and generating a plurality of scan signals in response to the scan start signal, a data driver configured to generate a plurality of data signals based on the image data, and a pixel portion including a plurality of pixels. One stage in the scan driver transmits a carry signal to 2n-th next stage. The timing controller selects any one of a normal frequency and low frequencies lower than the normal frequency as a driving frequency based on the input image data, and adjusts a clock duty of the plurality of clock signals so that a time required to output all of the plurality of scan signals during one frame is constant irrespective of the driving frequency.

公开(公告)号：US20200234632A1

公开(公告)日：2020-07-23

申请号：US16841239

申请日：2020-04-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyo Jin Lee ,  Se Hyuk Park

IPC: G09G3/32

Abstract: A pixel includes: a first transistor configured to generate a driving current corresponding to a data signal transmitted from a corresponding data line; a first light emitting diode (LED) including a cathode connected to a first power supply line and an anode connected to a second power supply line, and configured to emit light by the driving current; a second light emitting diode (LED) including a cathode connected to the second power supply line and an anode connected to the first power supply line, and configured to emit light by the driving current; a second transistor connected to the anode of the first light emitting diode (LED), and configured to transmit the driving current to the first light emitting diode (LED); and a third transistor connected to the anode of the second light emitting diode (LED), and configured to transmit the driving current to the second light emitting diode (LED.

公开(公告)号：US20190051242A1

公开(公告)日：2019-02-14

申请号：US15870707

申请日：2018-01-12

Applicant: Samsung Display Co., Ltd.

Inventor： Hyo Jin Lee ,  Se Hyuk Park

IPC: G09G3/3241

Abstract: A pixel includes: a first transistor configured generate a driving current corresponding to a data signal transmitted from a corresponding data line; a first light emitting diode (LED) including a cathode connected to a first power supply line and an anode connected to a second power supply line, and configured to emit light by the driving current; a second light emitting diode (LED) including a cathode connected to the second power supply line and an anode connected to the first power supply line, and configured to emit light by the driving current; a second transistor connected to the anode of the first light emitting diode (LED), and configured to transmit the driving current to the first light emitting diode (LED); and a third transistor connected to the anode of the second light emitting diode (LED), and configured to transmit the driving current to the second light emitting diode (LED.

公开(公告)号：US11705044B2

公开(公告)日：2023-07-18

申请号：US17320120

申请日：2021-05-13

Applicant: Samsung Display Co., Ltd.

Inventor： Jin Young Roh ,  Hyo Jin Lee ,  Jae Keun Lim ,  Hong Soo Kim ,  Se Hyuk Park

IPC: G09G3/20 ,  G09G3/3258

CPC classification number: G09G3/2003 ,  G09G3/3258 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2320/0233

Abstract: A display device includes: a pixel part to display an image and including pixels receiving a reference voltage; a controller to determine a value of the reference voltage based on a load of the entire pixel part, and to control a grayscale range of image data according to a location in the pixel part based on the reference voltage; a data driver to supply data voltages to the pixel part through data lines based on grayscale ranges adjusted for each location in the pixel part; and a scan driver to supply a scan signal to the pixels through scan lines.

公开(公告)号：US11521546B2

公开(公告)日：2022-12-06

申请号：US17517736

申请日：2021-11-03

Applicant: Samsung Display Co., Ltd.

Inventor： Se Hyuk Park ,  Hong Soo Kim ,  Jin Young Roh ,  Hyo Jin Lee ,  Jae Keun Lim

IPC: G09G3/3225

Abstract: A display device comprises pixels, an emission control driver, a scan driver, and a timing controller for selecting whether the display device is to operate in a first display mode in which the display device is driven at a first frequency or a second display mode in which the display device is driven at a second frequency lower than the first frequency based on input image data. The first display mode comprises first frame periods, and the second display mode comprises second frame periods having at least two sub-frames having a period equal to the first frame period. A total time required to supply the scan signals to the scan lines in one first frame period of the first frame periods and a total time required to supply the scan signals to the scan lines in one second frame period of the second frame periods are substantially same.

公开(公告)号：US11521531B2

公开(公告)日：2022-12-06

申请号：US16950004

申请日：2020-11-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hong Soo Kim ,  Jin Young Roh ,  Se Hyuk Park ,  Hyo Jin Lee ,  Jae Keun Lim ,  Jun Heyung Jung

IPC: G09G3/20

Abstract: A display device includes a display panel including a plurality of pixels, and a panel driver including N registers, where N is an integer greater than 1. The panel driver is configured to divide the display panel into N first detection regions, to perform a first still image detection operation on each of the N first detection regions by using the N registers, to divide the display panel into N second detection regions different from the N first detection regions by using a result of the first still image detection operation, and to perform a second still image detection operation on each of the N second detection regions by using the N registers.