公开(公告)号：US09978326B2

公开(公告)日：2018-05-22

申请号：US14728383

申请日：2015-06-02

Applicant: Samsung Display Co., Ltd.

Inventor： Yun-Mi Kim ,  Ki-Hyun Pyun ,  Sung-Jun Kim ,  Ju-Hyun Kim ,  Yong-Jae Lee ,  Jeong-Doo Lee ,  Kyung-Hwa Lim

IPC: G09G3/36

CPC classification number: G09G3/3655 ,  G09G3/3696 ,  G09G2310/08 ,  G09G2320/0693

Abstract: A liquid crystal display device, including a display panel including data lines and gate lines intersecting the data lines, a gate driver configured to sequentially apply a scan signal to the gate lines, a data driver configured to apply data voltages corresponding to each gate lines to the data lines, a timing controller configured to control the gate driver and the data driver, a power source supply circuit configured to supply a positive power source and a negative power source, a common voltage feedback circuit configured to receive the positive power source and the negative power source from the power source supply circuit, receive a reference voltage and a common voltage from the display panel, and output an amplified feedback signal corresponding to a voltage level difference between the reference voltage and the common voltage.

公开(公告)号：US09589516B2

公开(公告)日：2017-03-07

申请号：US14276668

申请日：2014-05-13

Applicant: Samsung Display Co., Ltd.

Inventor： Ki-Hyun Pyun ,  Seung-Woon Shin ,  Jong-Young Yun ,  Bong-Chool Jeon ,  Jun-Ho Hwang

IPC: G09G5/00 ,  G09G3/36

CPC classification number: G09G3/3614 ,  G09G3/3607 ,  G09G3/3688 ,  G09G2320/0204 ,  G09G2340/16

Abstract: A method of driving a display panel, the method including outputting video data to a display panel during an N-th (N is a natural number) frame, outputting video data to the display panel during an (N+1)-th frame, comparing polarities of video data of the N-th frame and corresponding polarities of video data of the (N+1)-th frame, and controlling polarities of video data of an (N+2)-th frame, according to the result of the comparison.

Abstract translation: 一种驱动显示面板的方法，所述方法包括在第N（N是自然数）帧期间将视频数据输出到显示面板，在第（N + 1）帧期间将视频数据输出到所述显示面板， 比较第N帧的视频数据的极性和第（N + 1）帧的视频数据的相应极性，以及根据第（N + 1）帧的视频数据的视频数据的控制， 比较。

公开(公告)号：US09741310B2

公开(公告)日：2017-08-22

申请号：US14632734

申请日：2015-02-26

Applicant: Samsung Display Co., Ltd.

Inventor： Ki-Hyun Pyun ,  Jang-Hoon Kwak ,  Hee-Bum Park ,  Jun-Ho Hwang

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G3/3648 ,  G09G2310/0245 ,  G09G2340/16

Abstract: A method of driving a display panel includes charging a pixel with first data during a first charging period, comparing a first grayscale of the first data and a second grayscale of second data, charging the pixel with compensated data during a second charging period if the first grayscale is greater than the second grayscale, and charging the pixel with the second data during a third charging period.

公开(公告)号：US09672778B2

公开(公告)日：2017-06-06

申请号：US14618898

申请日：2015-02-10

Applicant: Samsung Display Co., Ltd.

Inventor： Woon-Yong Lim ,  Ki-Hyun Pyun ,  Bong-Kyun Jo

IPC: G09G5/10 ,  G09G3/36

CPC classification number: G09G3/3614 ,  G09G2300/0452 ,  G09G2320/064 ,  G09G2320/0666 ,  G09G2370/08

Abstract: A method of driving a display panel includes steps of generating a plurality of load signals, of which at least one load signal has a different timing from the rest of the load signals, generating data voltages synchronized to low periods of the load signals and outputting the data voltages to data lines. Accordingly, the data voltages synchronized to each of the load signals can be outputted to each of the data lines. A color coordinate problem occurring when applying a RGBW type may be solved by setting a charging time of a white sub-pixel different from the rest of the sub-pixels. Thus, display quality of a display apparatus including the display panel may be improved.

公开(公告)号：US20160005380A1

公开(公告)日：2016-01-07

申请号：US14618898

申请日：2015-02-10

Applicant: Samsung Display Co., Ltd.

Inventor： Woon-Yong Lim ,  Ki-Hyun Pyun ,  Bong-Kyun Jo

IPC: G09G5/02 ,  G09G5/18

CPC classification number: G09G3/3614 ,  G09G2300/0452 ,  G09G2320/064 ,  G09G2320/0666 ,  G09G2370/08

Abstract: A method of driving a display panel includes steps of generating a plurality of load signals, of which at least one load signal has a different timing from the rest of the load signals, generating data voltages synchronized to low periods of the load signals and outputting the data voltages to data lines. Accordingly, the data voltages synchronized to each of the load signals can be outputted to each of the data lines. A color coordinate problem occurring when applying a RGBW type may be solved by setting a charging time of a white sub-pixel different from the rest of the sub-pixels. Thus, display quality of a display apparatus including the display panel may be improved.

Abstract translation: 驱动显示面板的方法包括以下步骤：产生多个负载信号，其中至少一个负载信号与其余负载信号具有不同的定时，产生与负载信号的低周期同步的数据电压，并输出 数据电压到数据线。 因此，可以将与每个负载信号同步的数据电压输出到每条数据线。 可以通过设置与其余子像素不同的白色子像素的充电时间来解决应用RGBW类型时出现的色坐标问题。 因此，可以提高包括显示面板的显示装置的显示质量。

公开(公告)号：US09953609B2

公开(公告)日：2018-04-24

申请号：US14995690

申请日：2016-01-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sung-Jun Kim ,  Yong-Jae Lee ,  Kyung-Hwa Lim ,  Ki-Hyun Pyun

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3688 ,  G09G5/008 ,  G09G2310/08 ,  G09G2320/02

Abstract: A display panel driving apparatus includes a control circuit, a data driver and a gate driver. The control circuit is configured to receive a first control signal for recovering a clock signal from a display signal including image data and the clock signal, and calculate a root mean square of the first control signal to output a second control signal. The data driver is configured to receive the display signal, receive the second control signal, recover the clock signal from the display signal according to the second control signal, and output a data signal based on the image data to a data line of a display panel. The gate driving part is configured to output a gate signal to a gate line of the display panel.

公开(公告)号：US09601077B2

公开(公告)日：2017-03-21

申请号：US14165942

申请日：2014-01-28

Applicant: Samsung Display Co., LTD.

Inventor： Woon-Yong Lim ,  Tong-Ill Kwak ,  Min-Ho Park ,  Yong-Jin Shin ,  Tae-Gwang Jung ,  Bong-Kyun Jo ,  Ki-Hyun Pyun

IPC: G09G5/00 ,  G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3648 ,  G09G3/3655

Abstract: A circuit includes a reference signal generating part configured to generate a plurality of reference signals having levels different from each other, a comparing part configured to compare a ripple signal with the reference signals to determine a level of the ripple signal, a compensating signal generating part configured to generate a compensation ripple signal corresponding to the level of the ripple signal, where the compensation ripple signal has a phase opposite to the ripple signal, and a push-pull circuit configured to stabilize the compensation ripple signal.

公开(公告)号：US09190008B2

公开(公告)日：2015-11-17

申请号：US13940444

申请日：2013-07-12

Applicant: Samsung Display Co., Ltd.

Inventor： Ki-Hyun Pyun ,  Jang-Hoon Kwak ,  Jung-Hoon Ku ,  Jin-Ki Kim ,  Seung-Woon Shin ,  Jun-Ho Hwang

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3677 ,  G09G2330/12

Abstract: A gate driving module includes a gate driver and a gate signal generator. The gate driver generates a vertical start signal, a plurality of gate clock signals and a plurality of inverse gate clock signals based on a vertical start control signal, a plurality of gate clock control signals, a gate on voltage, a first gate off voltage and a second gate off voltage. The number of the gate clock signals is P. The number of the inverse gate clock signals is P. The number of the gate clock control signals is P. P is a positive integer equal to or greater than two. The gate signal generator generates a gate signal based on the vertical start signal, the gate clock signals and the inverse gate clock signals.

Abstract translation: 栅极驱动模块包括栅极驱动器和栅极信号发生器。 栅极驱动器基于垂直启动控制信号，多个栅极时钟控制信号，栅极导通电压，第一栅极截止电压和第一栅极截止电压产生垂直起始信号，多个栅极时钟信号和多个反向栅极时钟信号，以及 第二栅极关断电压。 栅极时钟信号的数量为P.反向栅极时钟信号的数量为P.栅极时钟控制信号的数量为P.P为等于或大于2的正整数。 栅极信号发生器基于垂直起始信号，栅极时钟信号和反向栅极时钟信号产生栅极信号。

公开(公告)号：US09818366B2

公开(公告)日：2017-11-14

申请号：US14546142

申请日：2014-11-18

Applicant: Samsung Display Co., Ltd.

Inventor： Ki-Hyun Pyun

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3688 ,  G09G2330/025 ,  G09G2330/04 ,  G09G2330/08

Abstract: A display apparatus comprises a display panel including a plurality of data lines and a plurality of gate lines, a data driver circuit configured to convert image data to a grayscale voltage and to output the grayscale voltage to a data line, a voltage generator configured to provide the data driver circuit to a driving voltage, and a heat blocking circuit configured to compare a load current voltage with a reference voltage and to output a control signal for controlling the data driver circuit, the load current voltage being proportionate to a load current flowing toward the data driver circuit.

公开(公告)号：US09779675B2

公开(公告)日：2017-10-03

申请号：US14563200

申请日：2014-12-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Min-Young Park ,  Jeong-Doo Lee ,  Sung-Jun Kim ,  Yun-Mi Kim ,  Kyung-Hwa Lim ,  Ki-Hyun Pyun

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G09G3/3611 ,  G09G2310/08 ,  G09G2320/0233

Abstract: A display device includes a display panel, a variable gate clock generator and a gate driver. The display panel includes a plurality of pixels coupled to a plurality of data lines and a plurality of gate lines, respectively. The variable gate clock generator generates a first variable gate clock signal and a second variable gate clock signal having respective duty ratios that are varied depending on a brightness of a frame image. The gate driver generates a plurality of gate driving signals for driving the gate lines in response to the first and second variable gate clock signals.