公开(公告)号：US20210201779A1

公开(公告)日：2021-07-01

申请号：US16983314

申请日：2020-08-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyun Ho KIM ,  Jung Taek KIM ,  Jae Woo RYU ,  Joon Suk BAIK ,  Yong Jin SHIN ,  Uk Jae JANG ,  Ki Hyun PYUN ,  Sang Su HAN

IPC: G09G3/3233

Abstract: A compensation method of a display device includes: sensing a first luminance of the display device when a first pattern is displayed on the display device; calculating a luminance prediction value corresponding to a second pattern to be displayed on the display device based on the first luminance, where the second pattern is different from the first pattern; sensing a second luminance of the display device when the second pattern is displayed on the display device; adjusting a current flowing in a first power line of the display device until the second luminance reaches the luminance prediction value; and storing compensation data corresponding to an adjusted current in a lookup table when the second luminance reaches the luminance prediction value.

公开(公告)号：US20210125541A1

公开(公告)日：2021-04-29

申请号：US16894157

申请日：2020-06-05

Applicant: Samsung Display Co., LTD.

Inventor： Ki Hyun PYUN ,  Jang Hoon KWAK

IPC: G09G3/20

Abstract: A display device includes a display panel including gate lines, data lines, and pixels; a gate driver that provides gate signals to the pixels through the gate lines; a data driver that provides data signals to the pixels through the data lines; and a timing controller that obtains pre-charging gray scale values based on gray scale values of the pixels. The gate driver simultaneously supplies the gate signals to the gate lines in a first period, and sequentially supplies the gate signals to the gate lines in a second period. The data driver supplies data signals corresponding to the pre-charging gray scale values to the data lines in the first period, and supplies data signals corresponding to the gray scale values of the pixels to the data lines in the second period.

公开(公告)号：US20210012704A1

公开(公告)日：2021-01-14

申请号：US16842444

申请日：2020-04-07

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Myoung Seop SONG ,  Myung Ho LEE

IPC: G09G3/32

Abstract: A display device and a driving method thereof are disclosed, and the display device includes a first pixel connected to a first data line, a first scan line, and a first power source line, emitting light in a first period, and not emitting light in a second period following the first period; a second pixel connected to a second data line, the first scan line, and the first power source line, not emitting light in the first period, and emitting light in the second period; a current sensor sensing a current flowing through the first power source line in the first period to provide a first sensing current value, and sensing the current flowing through the first power source line in the second period to provide a second sensing current value; and a memory to storing a first block target current value corresponding to the first sensing current value and a second block target current value corresponding to the second sensing current value.

公开(公告)号：US20180122293A1

公开(公告)日：2018-05-03

申请号：US15802118

申请日：2017-11-02

Applicant: Samsung Display Co., Ltd.

Inventor： Woon Yong LIM ,  Sung Soo CHOI ,  Ki Hyun PYUN

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/20 ,  G09G2310/06 ,  G09G2310/08 ,  G09G2320/0209 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2330/06 ,  G09G2360/16 ,  H03K7/08 ,  H03L7/08

Abstract: A converter includes a phase locked loop (“PLL”) unit which outputs a first frequency signal having a first frequency during a first period of one frame and to output a second frequency signal modulated to have a frequency corresponding to a pattern of an image signal during a second period other than the first period, a pulse width modulation (“PWM”) signal generator which generates a PWM signal according to the frequency of the frequency signal outputted from the PLL unit, and a voltage generator which outputs a driving voltage obtained by modulating an input voltage in response to the PWM signal to a voltage output terminal.

公开(公告)号：US20160078957A1

公开(公告)日：2016-03-17

申请号：US14660648

申请日：2015-03-17

Applicant: Samsung Display Co., Ltd.

Inventor： Yun Mi KIM ,  Ki Hyun PYUN ,  Sung Jun KIM ,  Min Young PARK ,  Jeong Doo LEE ,  Kyung Hwa LIM

IPC: G11C16/28 ,  G09G5/395 ,  H03M1/66 ,  G11C16/10 ,  G11C16/26

CPC classification number: G09G5/395 ,  G09G3/3648 ,  G09G5/12 ,  G09G5/393 ,  G09G2330/021 ,  G09G2360/12 ,  G11C7/16 ,  G11C16/08 ,  G11C16/10 ,  G11C16/26 ,  H03M1/66

Abstract: A memory is provided, which comprises an electrically erasable and programmable read only memory (EEPROM) configured to store an operation system and to be rewritable in response to a write operation signal, an address comparator configured to be connected to Inter Integrated Circuit (I2C) lines and output the write operation signal to the EEPROM in response to an external signal, a digital-to-analog converter (DAC) unit configured to determine whether to connect a DAC resistor and the I2C lines in response to the external signal and a pull-up resistor unit configured to be connected to the I2C lines.

Abstract translation: 提供了一种存储器，其包括电可擦除和可编程只读存储器（EEPROM），其被配置为存储操作系统并且响应于写入操作信号可重写，地址比较器被配置为连接到内部集成电路（I2C） 线路，并响应于外部信号将写入操作信号输出到EEPROM;数模转换器（DAC）单元，被配置为响应于外部信号确定是否连接DAC电阻器和I2C线路 - 配置为连接到I2C线路的电阻单元。

公开(公告)号：US20240282264A1

公开(公告)日：2024-08-22

申请号：US18496970

申请日：2023-10-30

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Dae Sik LEE ,  Sung Mo YANG

IPC: G09G3/3241

CPC classification number: G09G3/3241 ,  G09G2330/025 ,  G09G2330/04

Abstract: A display device according to embodiments of the present inventive concept includes pixels connected to scan lines, data lines, sensing lines, a first power line, and a second power line; and a power supply unit supplying at least one of a first driving power source, a second driving power source, and a third driving power source to the second power line as a second power source, and the power supply unit supplies voltages of the first driving power source and the third driving power source to the second power line during a normal driving period in which the pixels emit light.

公开(公告)号：US20240071313A1

公开(公告)日：2024-02-29

申请号：US18113602

申请日：2023-02-23

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Jin Won LEE

IPC: G09G3/3266 ,  G09G3/3291

CPC classification number: G09G3/3266 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2360/14

Abstract: A display device for performing a sensing operation according to an embodiment of the present inventive concept includes a pixel unit including pixel circuits each including a light emitting element, a driving transistor, a switching transistor, and a sensing control transistor connected between an anode electrode and an initialization power source; a scan driver connected to the pixel circuits through horizontal lines and sequentially outputting scan signals and sensing control signals; and a sensing unit configured to sense voltages or current of first nodes each disposed between an anode electrode and a driving transistor. The scan driver simultaneously outputs the sensing control signals to the horizontal lines at every predetermined discharge cycle.

公开(公告)号：US20230101159A1

公开(公告)日：2023-03-30

申请号：US18075777

申请日：2022-12-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun PYUN ,  Jang Mi LEE ,  Eun Jin CHOI

IPC: G09G3/20 ,  G09G3/36 ,  G09G3/3275 ,  G09G5/00

Abstract: A display device including: a display area including pixels connected to data lines and scan lines, the display area including a plurality of signal output lines connected to each of the scan lines through a contact; a data driver including a first data driving circuit at a side of the display area; a scan driver disposed at the side of the display area; and a timing controller, wherein the first data driving circuit includes: output buffers which respectively output data signals to first to k-th data lines (k is an integer greater than 2) of the data lines; and an output delay controller which transmits the data signals to the output buffers through first to k-th transmission lines, and controls delay times of the data signals output to the first to k-th transmission lines based on position information of a pixel row to which the data signals are supplied.

公开(公告)号：US20220375413A1

公开(公告)日：2022-11-24

申请号：US17566489

申请日：2021-12-30

Applicant: SAMSUNG DISPLAY CO. LTD.

Inventor： Ki Hyun PYUN ,  Jung Eon An

IPC: G09G3/3275

Abstract: A display device includes a sensor, a timing controller, and a data driver. The sensor senses characteristic values of an element included in a pixel of the display device using input initialization and data voltages in a sensing period of one frame period. The timing controller calculates compensation data voltage using the characteristic values, and calculate adjusted initialization and data voltages in the sensing period by using the compensation data voltage. The data driver output the adjusted initialization and data voltages to the pixel during the sensing period in response to a control signal output from the timing controller.

公开(公告)号：US20220319439A1

公开(公告)日：2022-10-06

申请号：US17453256

申请日：2021-11-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun PYUN ,  Hee Sook PARK

IPC: G09G3/3275 ,  G09G3/3233

Abstract: A display device includes a display panel, a power supply a current measurer, a controller, and a sensor. The display panel includes pixels connected between first and second power lines. The power supply applies power voltages to the first and second power lines. The current measurer measures a current applied to the display panel from the power supply through the first and second power lines. The controller outputs a first sensing control signal indicating whether to sense a voltage-current characteristic of the light emitting element of at least one of the pixels based on a measured current. The sensor senses the voltage-current characteristic of the light emitting element in response to the first sensing control signal.