公开(公告)号：US20230136973A1

公开(公告)日：2023-05-04

申请号：US17814129

申请日：2022-07-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seungyoung CHOI ,  Seongjun KIM ,  Jae Woo RYU ,  Youngsoo SOHN ,  Kwan-Young OH

IPC: G09G3/20

Abstract: A display device includes a display panel, controller configured to generate a second data enable signal and second image data based on a first data enable signal and first image data, and generate an output data enable signal and output image data by performing a black data insertion operation, and data driver configured to provide data signals based on the output data enable signal and the output image data, where the controller obtains a delay time between the first data enable signal and the second data enable signal or the first image data and the second image data, determines a number of subsequent pulses of the output data enable signal during a period from one time point within a frame period to an end time point of the frame period, and adjusts a cycle of the subsequent pulses based on the delay time and the number of the subsequent pulses.

公开(公告)号：US20190244579A1

公开(公告)日：2019-08-08

申请号：US16256349

申请日：2019-01-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kwan-Young OH ,  Yoongu KIM ,  Sukjin PARK ,  Wonhee LEE ,  Sangsu HAN ,  Jae-Han LEE

IPC: G09G3/36 ,  G09G3/20

CPC classification number: G09G3/3688 ,  G09G3/2022 ,  G09G3/3696

Abstract: A method of operating a display device involves detecting whether a frame mode of the display device is a normal mode in which image data are received with a constant frame rate or a variable frame mode in which the image data are received with a variable frame rate. An output buffer drivability of a data driver included in the display device may be set according to the detected frame mode, and an image is displayed by outputting data voltages corresponding to the image data with slew rates corresponding to the set output buffer drivability. Power consumption in output buffer amplifiers may be selectively lowered by setting a relatively low output buffer drivability corresponding to a relatively low slew rate.

公开(公告)号：US20180090083A1

公开(公告)日：2018-03-29

申请号：US15718806

申请日：2017-09-28

Applicant: Samsung Display Co., Ltd.

Inventor： Myeong Su KIM ,  Jae Ho CHOI ,  Sil Yi BANG ,  Kuk-Hwan AHN ,  Kwan-Young OH ,  Sang Su HAN

IPC: G09G3/36

Abstract: A display device includes a display panel including a plurality of pixels and divided into a plurality of regions, a data driver generating a plurality of reference gamma voltages based on a gamma control signal and including a data driving integrated circuit applying a data signal generated using the plurality of reference gamma voltages to a corresponding pixel among the plurality of pixels, a memory storing a plurality of gamma voltage data corresponding to a plurality of gamma curves of each of the plurality of regions, and a signal controller determining characteristics of a plurality of images divided and displayed in the plurality of regions using an input image signal, selecting the gamma curves corresponding to the plurality of regions according to the characteristics, and reading gamma voltage data corresponding to the selected gamma curve from the memory to generate the gamma control signal.

公开(公告)号：US20150179131A1

公开(公告)日：2015-06-25

申请号：US14495132

申请日：2014-09-24

Applicant: Samsung Display Co., LTD.

Inventor： Yeon-Sun NA ,  Hyun-Seok HONG ,  Dong-In KIM ,  Ji-Hee KIM ,  Kwan-Young OH ,  Bum LEE

IPC: G09G5/00

CPC classification number: G09G5/006 ,  G09G3/3611 ,  G09G3/3696 ,  G09G5/18 ,  G09G2370/08

Abstract: A timing controller includes: a top voltage generator configured to output first to third top voltages; a bottom voltage generator configured to output first to third bottom voltages; a first transmitting part configured to output a first data signal for a first data driving chip, based on the first top and bottom voltages; a second transmitting part configured to output a second data signal for a second data driving chip based on the second top and bottom voltages; and a third transmitting part configured to output a third data signal for a third data driving chip based on the third top and bottom voltages, where one of the first to third top voltages is different from another of the first to third top voltages, and one of the first to third bottom voltages is different from another of the first to third bottom voltages.

Abstract translation: 定时控制器包括：顶部电压发生器，被配置为输出第一至第三顶部电压; 底部电压发生器，被配置为输出第一至第三底部电压; 第一发送部件，被配置为基于所述第一顶部和底部电压输出用于第一数据驱动芯片的第一数据信号; 第二发送部件，被配置为基于所述第二顶部和底部电压输出用于第二数据驱动芯片的第二数据信号; 以及第三发送部，被配置为基于所述第三顶电压和所述第三至第三顶电压中的一个与所述第一至第三顶电压中的另一个不同的第三顶电压输出用于第三数据驱动芯片的第三数据信号，以及一 第一至第三底部电压与第一至第三底部电压中的另一个不同。

公开(公告)号：US20200090596A1

公开(公告)日：2020-03-19

申请号：US16575202

申请日：2019-09-18

Applicant: Samsung Display Co., Ltd.

Inventor： Kwan-Young OH ,  Suk Jin PARK ,  Youngsoo SOHN ,  Wonhee LEE ,  Jae Hyoung PARK

IPC: G09G3/34 ,  G09G3/36

Abstract: A liquid crystal display device comprising, a liquid crystal display panel, a timing controller configured to output a light-source controlling signal during a variable frequency mode comprising a plurality of frames with variable frame frequencies, the light-source controlling signal having a high level during a light-on period preset in an early period of a frame of the plurality of frames and a low level during a light-off period preset to a length according to a frame frequency in a latter period of the frame of the plurality of frames, and a light source configured to emit light during the light-on period and not emit light during the light-off period in response to the light-source controlling signal.

公开(公告)号：US20150371609A1

公开(公告)日：2015-12-24

申请号：US14836627

申请日：2015-08-26

Applicant: Samsung Display Co., Ltd.

Inventor： Yong-Jun CHOI ,  Jae-Won JEONG ,  Jae-Suk CHOI ,  Seung-Ho BAEK ,  Joo Seok YEOM ,  Young-Su HAN ,  Myeong-Su KIM ,  Yun-Jae KIM ,  Jin-Soo KIM ,  Seung Hwan MOON ,  Po-Yun PARK ,  Jae Wan PARK ,  Kwan-Young OH ,  Min Joo LEE ,  Jung Hwan CHO

IPC: G09G5/18 ,  G06T1/60 ,  G06T1/20

CPC classification number: G09G5/18 ,  G06T1/20 ,  G06T1/60 ,  G09G3/2092 ,  G09G3/3406 ,  G09G3/3648 ,  G09G2300/04 ,  G09G2320/0247 ,  G09G2320/0626 ,  G09G2320/064 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/0435 ,  G09G2360/18

Abstract: The present invention provides a display device with reduced power consumption and that reduces changes in luminance, and perceptibility of flicker, and a driving method thereof. A display device according to an exemplary embodiment comprises: a display panel configured to display a still image and a motion picture; a signal controller configured to control signals for driving the display panel; and a graphics processing unit configured to transmit input image data to the signal controller, wherein the signal controller comprises a frame memory configured to store the input image data, and the display panel is driven at a first frequency when the motion picture is displayed and the display panel is driven at a second frequency that is lower than the first frequency when the still image is displayed.

Abstract translation: 本发明提供一种具有降低的功耗并减少亮度变化和闪烁感知的显示装置及其驱动方法。 根据示例性实施例的显示装置包括：显示面板，被配置为显示静止图像和运动图像; 信号控制器，被配置为控制用于驱动显示面板的信号; 以及图形处理单元，被配置为将输入图像数据发送到所述信号控制器，其中所述信号控制器包括被配置为存储所述输入图像数据的帧存储器，并且当显示所述运动图像时所述显示面板以第一频率被驱动， 当显示静止图像时，显示面板以低于第一频率的第二频率被驱动。

公开(公告)号：US20140320521A1

公开(公告)日：2014-10-30

申请号：US14163073

申请日：2014-01-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kwan-Young OH ,  Youn Jin JUNG ,  Po-Yun PARK ,  Jae-Won JEONG

IPC: G09G5/02

CPC classification number: G09G5/02 ,  G09G3/3225 ,  G09G3/3648 ,  G09G2300/0426 ,  G09G2310/0205 ,  G09G2310/0251 ,  G09G2320/0285

Abstract: A display device includes a first pixel connected to a first gate line and a data line, a second pixel connected to a second gate line, different from the first gate line, and the data line, the second pixel being pre-charged when the first pixel is charged, a compensation LUT which stores LUT values for compensating a charging rate during a main charging of the second pixel; and an image signal processor which generates a compensated image signal for the main charging of the second pixel. The image signal processor may include a correction value calculating unit which calculates a correction value from the compensation LUT based on first and second input image signal of respective first and second pixels, and a compensated value generating unit which generates a compensated image signal for the second pixel based on the correction value and the second input image signal.

Abstract translation: 显示装置包括连接到第一栅极线和数据线的第一像素，连接到不同于第一栅极线的第二栅极线的第二像素和数据线，第二像素在第一栅极线与第一栅极线之间被预充电时 像素被充电;补偿LUT，其存储用于补偿第二像素的主充电期间的充电率的LUT值; 以及图像信号处理器，其生成用于第二像素的主充电的补偿图像信号。 图像信号处理器可以包括校正值计算单元，其基于相应的第一和第二像素的第一和第二输入图像信号从补偿LUT计算校正值，以及补偿值生成单元，其生成用于第二和第二像素的补偿图像信号 基于校正值和第二输入图像信号的像素。