公开(公告)号：US20190244580A1

公开(公告)日：2019-08-08

申请号：US16263257

申请日：2019-01-31

Applicant: Samsung Display Co., Ltd.

Inventor： Sangan KWON ,  Junpyo LEE ,  Kyunho KIM ,  Sungjin KIM ,  Yong-Jin SHIN ,  Neung-Beom LEE ,  Kyung-Hwa LIM ,  Jinhyuk JANG

IPC: G09G3/36 ,  G02F1/1362 ,  G02F1/1368 ,  G09G3/34

CPC classification number: G09G3/3696 ,  G02F1/136213 ,  G02F1/1368 ,  G02F2201/121 ,  G02F2201/123 ,  G09G3/3406 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/0819 ,  G09G2310/08 ,  G09G2320/045 ,  G09G2320/048

Abstract: A method of driving a liquid crystal display panel is provided. The liquid crystal display panel includes: a liquid crystal display pixel including a liquid crystal structure including a pixel electrode, a liquid crystal layer, and a common electrode; a switching transistor connected between the pixel electrode of the liquid crystal structure and a data-line; and a storage capacitor connected to the pixel electrode of the liquid crystal structure. The method includes: calculating an accumulated driving time of the liquid crystal display panel by accumulating a driving time of the liquid crystal display panel; determining whether or not the accumulated driving time has reached a deterioration reference time; and when the accumulated driving time is determined to have reached the deterioration reference time, changing a gate-off voltage applied to a gate terminal of the switching transistor and a common voltage applied to the common electrode.

公开(公告)号：US20200035173A1

公开(公告)日：2020-01-30

申请号：US16401600

申请日：2019-05-02

Applicant: Samsung Display Co., Ltd.

Inventor： Kyunho KIM ,  Bonggyun KANG ,  Sungjin KIM ,  Neung-Beom LEE ,  Jun Pyo LEE

IPC: G09G3/36 ,  G06T7/00

Abstract: A display device includes an image analyzing part which determines whether current frame image data includes a crosstalk pattern, and a gamma voltage generator which generates current frame gamma data by applying the asymmetric gamma when the current frame image data do not include the crosstalk pattern, and generates the current frame gamma data by applying a symmetric gamma when the current frame image data includes the crosstalk pattern. The positive polarity and negative polarity data voltages of the asymmetric gamma are asymmetric with each other for each of the grayscales, and the positive polarity and negative polarity data voltages of the symmetric gamma are symmetric with each other for each of the grayscales.

公开(公告)号：US20200027418A1

公开(公告)日：2020-01-23

申请号：US16401518

申请日：2019-05-02

Applicant: Samsung Display Co., Ltd.

Inventor： Kyunho KIM ,  Sangan KWON ,  Sungjin KIM ,  Subin PARK ,  Neung-Beom LEE

IPC: G09G3/36 ,  G09G3/3275 ,  G09G3/3225

Abstract: A display device includes a display panel including a plurality of pixels, a voltage generator which generates a gate on voltage having a first voltage level that satisfies a target charging ratio of a pixel of the plurality of pixels, a voltage controller which receives an image signal and generates a voltage control signal when the image signal includes a predetermined reference pattern, a gate driver which generates a gate signal provided to the plurality of pixels based on the gate on voltage, a data driver which generates a data signal provided to the of the plurality of pixels based on the image signal, and a timing controller which generates control signals that control the gate driver and the data driver. The voltage generator changes the gate on voltage to have a second voltage level lower than the first voltage level based on the voltage control signal.

公开(公告)号：US20160042713A1

公开(公告)日：2016-02-11

申请号：US14805290

申请日：2015-07-21

Applicant: Samsung Display Co., LTD.

Inventor： Jong-Hyun SIM ,  Neung-Beom LEE ,  Dong-Joon KWAG ,  Soo-Yeon KIM ,  Jeong-Hyun KIM ,  Hyeon-Uk WON ,  Ji-Ye LEE ,  Hyeon-Woo HWANG

IPC: G09G3/36

Abstract: A gate driver includes a gate signal generating part, a switching part and a switching controlling part. The gate signal generating part is configured to generate a gate signal including a precharge time and a normal charge time using a compensated gate on voltage and a gate off voltage. The switching part is disposed between the gate signal generating part and a gate line. The switching part is configured to apply a compensated gate signal to the gate line. The switching controlling part is configured to generate a switching control signal for controlling an operation of the switching part.

Abstract translation: 栅极驱动器包括栅极信号产生部分，开关部分和开关控制部分。 门信号产生部件被配置为使用补偿的栅极导通电压和栅极截止电压来产生包括预充电时间和正常充电时间的栅极信号。 开关部分设置在栅极信号产生部分和栅极线之间。 开关部分被配置为将补偿的栅极信号施加到栅极线。 切换控制部被配置为产生用于控制切换部的动作的切换控制信号。

公开(公告)号：US20140022225A1

公开(公告)日：2014-01-23

申请号：US13678009

申请日：2012-11-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Neung-Beom LEE ,  Jeong-Hyun KIM ,  Won Hee LEE ,  Woo Jung Jung

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G3/3614 ,  G09G3/3648 ,  G09G3/3655 ,  G09G2300/0443 ,  G09G2310/0205 ,  G09G2310/0218 ,  G09G2310/0251 ,  G09G2320/0204 ,  G09G2320/0257 ,  G09G2320/0673

Abstract: A display device and a driving method is disclosed. The driving method includes receiving an image signal for one frame for one pixel, converting the image signal into at least two data voltages according to at least two gamma curves, applying a first gate signal and a second gate signal to a plurality of gate lines respectively connected to a plurality of subpixels included in one pixel during the frame. The method further includes applying the at least two data voltages to the plurality of subpixels during the frame. A gamma curve for the data voltage applied to one subpixel among the plurality of subpixels includes the at least two different gamma curves and is changed with a period of a first time.

Abstract translation: 公开了一种显示装置和驱动方法。 该驱动方法包括：接收一个像素的一帧的图像信号，根据至少两个伽马曲线将图像信号转换为至少两个数据电压，分别向多个栅极线施加第一栅极信号和第二栅极信号 连接到帧期间包括在一个像素中的多个子像素。 该方法还包括在帧期间将多个子像素应用至少两个数据电压。 施加到多个子像素中的一个子像素的数据电压的伽马曲线包括至少两个不同的伽马曲线，并且以第一次的周期改变。

公开(公告)号：US20150116385A1

公开(公告)日：2015-04-30

申请号：US14294924

申请日：2014-06-03

Applicant: Samsung Display Co., Ltd.

Inventor： Neung-Beom LEE ,  Jeong-Hyun KIM ,  Jinseuk KIM ,  Jong Hyun SIM ,  Junpyo LEE

IPC: G09G3/36

CPC classification number: G09G3/3659 ,  G09G3/3607 ,  G09G2300/0426 ,  G09G2300/0447 ,  G09G2300/0478 ,  G09G2310/0251 ,  G09G2310/0286 ,  G09G2320/028

Abstract: A display apparatus includes pixels each including first and second sub-pixels having different transmittances from each other under a same gray scale, gate lines commonly connected to the first and second sub-pixels to apply a gate signal to the first and second sub-pixels, a first data line applying a first data signal to one of the first and second sub-pixels, and a second data line applying a second data signal to the other one of the first and second sub-pixels. The first sub-pixel has the transmittance lower than the transmittance of the second sub-pixel, and the second sub-pixel connected to an i-th gate line of the gate lines is disposed between the first sub-pixel connected to the i-th gate line and the first sub-pixel connected to an (i+1)th gate line of the gate lines.

Abstract translation: 显示装置包括像素，其各自包括在相同灰度处彼此具有不同透射率的第一和第二子像素，公共连接到第一和第二子像素的栅极线，以向第一和第二子像素施加栅极信号 将第一数据信号施加到第一和第二子像素之一的第一数据线以及将第二数据信号施加到第一和第二子像素中的另一个的第二数据线。 第一子像素的透射率低于第二子像素的透射率，连接到栅极线的第i栅极线的第二子像素设置在与第i子像素连接的第一子像素之间， 栅极线和连接到栅极线的第（i + 1）栅极线的第一子像素。