公开(公告)号：US20240233606A1

公开(公告)日：2024-07-11

申请号：US18616151

申请日：2024-03-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hee Sook PARK ,  Ki Hyun PYUN

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2310/027 ,  G09G2320/0271

Abstract: A display device includes: a gain provider configured to set a time point elapsed by a set period from a time point at which a first region of an input image is detected as a still region, as a set time, and to gradually decrease a gain value from the set time; and a grayscale converter configured to generate an output image by applying the gain value to the first region and a second region including a peripheral region of the first region among the input image, wherein the gain provider is configured to set the set period differently according to size of grayscale values in the first region.

公开(公告)号：US20240096258A1

公开(公告)日：2024-03-21

申请号：US18522226

申请日：2023-11-29

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Hee Sook PARK

IPC: G09G3/20

CPC classification number: G09G3/2007 ,  G09G3/3233

Abstract: A display device includes blocks each including two or more pixels commonly coupled to a first power line, and a first power voltage controller for determining a margin value of a first power voltage supplied to the first power line, based on load values of the blocks. The first power voltage controller determines the load values based on grayscale values of the pixels included in each of the blocks. The magnitude of the first power voltage is determined to become smaller as the margin value becomes larger. The margin value includes a first margin value. The first power voltage controller determines the first margin value according to a degree of distribution of load values of first blocks arranged in a first direction among the blocks.

公开(公告)号：US20230410714A1

公开(公告)日：2023-12-21

申请号：US18307536

申请日：2023-04-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun PYUN ,  Hee Sook PARK

IPC: G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/2007 ,  G09G3/3233 ,  G09G3/2096 ,  G09G2300/0842 ,  G09G2320/041 ,  G09G2330/028 ,  G09G2320/0233 ,  G09G2320/0247

Abstract: A display device includes a display panel including a plurality of pixels, a timing controller, a data driver and a scale factor. The timing controller calculates a frame load value corresponding to an image frame of input image data and generates image data by scaling grayscale values of the input image data using a scale factor. The data driver generates a data signal corresponding to the image data and supplies the data signal to the pixels. The scale factor generating circuit sets a reference range based on a temperature of the display panel and a global current value that flows through the pixels, and generates the scale factor included within the reference range based on the frame load value and the global current value.

公开(公告)号：US20230274694A1

公开(公告)日：2023-08-31

申请号：US18313116

申请日：2023-05-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun PYUN ,  Jang Hoon KWAK

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/027 ,  G09G2320/0242 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2320/048 ,  G09G2330/12

Abstract: A display device may include first pixels configured to emit light in a first color, second pixels configured to emit light in a second color different from the first color, a data driver configured to supply first reference voltages to data lines coupled to the first pixels, and a sensing circuit configured to receive first sensing voltages from sensing lines coupled to the first pixels, wherein the data driver supplies second reference voltages different from the first reference voltages to data lines coupled to the second pixels, and the sensing circuit receives second sensing voltages from sensing lines coupled to the second pixels.

公开(公告)号：US20230245615A1

公开(公告)日：2023-08-03

申请号：US17897720

申请日：2022-08-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jang Mi LEE ,  Ki Hyun PYUN ,  Hyun Joo SEO

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/08 ,  G09G2310/0267 ,  G09G2310/0272 ,  G09G2320/0271 ,  G09G2320/0257 ,  G09G2330/021

Abstract: A display device includes: a pixel component including pixels; a timing controller, which generates adjusted image data by converting grayscale values of input image data based on a gain value and generates first and second control signals control signal in response to an input control signal; a scan driver, which supplies a scan signal to the pixels in response to the first control signal; a data driver, which generates a data signal corresponding to the adjusted image data and supplies the data signal to the pixels based on the second control signal and the adjusted image data, and an image controller, which analyzes an input image in the input image data and gradually decreases the gain value during a first control period when the input image is a still image.

公开(公告)号：US20220366831A1

公开(公告)日：2022-11-17

申请号：US17877594

申请日：2022-07-29

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Won Jin SEO ,  Eun Jin CHOI

IPC: G09G3/20

Abstract: A display device includes a plurality of pixels grouped into blocks divided into block rows extending in a first direction and arranged in a second direction, wherein each block includes two or more pixels connected to a first power source line, and each pixel is assigned with a grayscale value in a range of grayscale values that is divided into a plurality of grayscale sections; and a first power source voltage adjuster selecting a reference block row, and determining a magnitude of a first power source voltage supplied to the first power source line based on a number of blocks in the reference block row having a grayscale section that is same as a maximum grayscale section of the reference block row. The maximum grayscale section corresponds to a grayscale section that includes a largest grayscale value having a grayscale value ratio greater than a minimum ratio.

公开(公告)号：US20220084453A1

公开(公告)日：2022-03-17

申请号：US17235202

申请日：2021-04-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun PYUN ,  Min Young PARK ,  Eun Jin CHOI

IPC: G09G3/20

Abstract: A display device includes: a pixel unit including pixels connected to data lines and scan lines, and signal output lines, where at least one signal output line of the signal output lines is connected to each of the scan lines through a contact point; a data driver disposed at one side of the pixel unit to drive the data lines; a scan driver disposed at the one side of the pixel unit together with the data driver to drive the scan lines; and a timing controller controlling the data driver and the scan driver. The data driver includes: output buffers outputting data signals to the data lines, respectively; and a slew rate controller adjusting a slew rate of the data signals by controlling a bias value supplied to the output buffers in units of pixel rows based on positions of the pixels and a change in the data signals.

公开(公告)号：US20210193016A1

公开(公告)日：2021-06-24

申请号：US16942200

申请日：2020-07-29

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Hee Sook PARK

IPC: G09G3/20

Abstract: A display device includes blocks each including two or more pixels commonly coupled to a first power line, and a first power voltage controller for determining a margin value of a first power voltage supplied to the first power line, based on load values of the blocks. The first power voltage controller determines the load values based on grayscale values of the pixels included in each of the blocks. The magnitude of the first power voltage is determined to become smaller as the margin value becomes larger. The margin value includes a first margin value. The first power voltage controller determines the first margin value according to a degree of distribution of load values of first blocks arranged in a first direction among the blocks.

公开(公告)号：US20200090576A1

公开(公告)日：2020-03-19

申请号：US16691836

申请日：2019-11-22

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/20

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：US20150206499A1

公开(公告)日：2015-07-23

申请号：US14449874

申请日：2014-08-01

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Sung-Jun KIM ,  Jong-Young YUN

IPC: G09G3/36

CPC classification number: G09G3/3611 ,  G09G2310/08 ,  G09G2330/04

Abstract: A display device includes: a plurality of pixels; a scan driver configured to apply a scan signal to a plurality of scan lines connected to the plurality of pixels; a data driver configured to apply a gray voltage to a plurality of data lines connected to the plurality of pixels; a signal controller configured to transmit a scan control signal for controlling operating of the scan driver to the scan driver, and configured to transmit a data control signal for controlling operating of the data driver to the data driver; a power supply configured to supply a power voltage for generation of the scan signal to the scan driver; and a short detector configured to detect a voltage level of the power voltage and generate an enable signal in response to the detection.

Abstract translation: 显示装置包括：多个像素; 扫描驱动器，被配置为向连接到所述多个像素的多条扫描线施加扫描信号; 配置为向连接到所述多个像素的多条数据线施加灰度电压的数据驱动器; 信号控制器，被配置为发送用于控制扫描驱动器的操作到扫描驱动器的扫描控制信号，并且被配置为发送用于控制数据驱动器的操作的数据控制信号到数据驱动器; 电源，被配置为向扫描驱动器提供用于产生扫描信号的电源电压; 以及短检测器，被配置为检测电源电压的电压电平并响应于检测而产生使能信号。