公开(公告)号：US20240231539A9

公开(公告)日：2024-07-11

申请号：US18214281

申请日：2023-06-26

Applicant: LG DISPLAY CO., LTD.

Inventor： Daeseok OH ,  Yonghwa PARK ,  Daeho PARK

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/20

CPC classification number: G06F3/04184 ,  G06F3/044 ,  G09G3/2007 ,  G09G3/2096 ,  G09G2310/0213 ,  G09G2310/0275 ,  G09G2310/08 ,  G09G2354/00

Abstract: A display device and a driving method thereof may be capable of compensating for noise caused by image data with inverted image data to cancel a noise component. The device includes a display panel divided into a first area and a second area; a first source driving circuit and a second source driving circuit for providing a source signal to the first area and the second area, respectively; a gate driving circuit for providing a scan signal; a touch driving circuit for applying a touch driving signal and sensing a touch signal; and a timing controller. The timing controller controls corresponding circuits to display first image data on the first area during a first display time, and to provide a source signal corresponding to first inverted data obtained by inverting the first image data to the second area during the first display time.

公开(公告)号：US20230061191A1

公开(公告)日：2023-03-02

申请号：US17893890

申请日：2022-08-23

Applicant: LG Display Co., Ltd.

Inventor： Daeseok OH ,  Sunghun KIM ,  Taehun KIM

IPC: H01L27/32 ,  G09G3/3291

Abstract: Disclosed are a display panel having a large area, high resolution, a narrow bezel, low power consumption, and having reduced Resistance Capacitance (RC) delay, and a display device including the same. The display panel includes an Active Area Gate-In-Panel (AAGIP) disposed between adjacent pixel blocks, wherein the AAGIP unit is configured to: connect an n scan line disposed in and along sub-pixels of an n-th row of the pixel block on one side of the AAGIP unit and an n scan line disposed in and along sub-pixels of an (n+1)-th row of the pixel block on the other side thereof to each other; and connect an n+1 scan line disposed in and along sub-pixels of an (n+1)-th row of the pixel block on one side thereof and an n+1 scan line disposed in and along sub-pixels of an n-th row of the pixel block on the other side thereof to each other. Thus, defect such as crosstalk or smear caused by data line transition is reduced.

公开(公告)号：US20160035297A1

公开(公告)日：2016-02-04

申请号：US14750987

申请日：2015-06-25

Applicant: LG Display Co., Ltd.

Inventor： Daeseok OH ,  Sangsoon YOON ,  Yonghwa PARK ,  Seunghwan SHIN ,  Moonsoo CHUNG

IPC: G09G3/36 ,  G09G5/00

CPC classification number: G09G3/3618 ,  G09G3/2092 ,  G09G3/2096 ,  G09G5/006 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/0435

Abstract: A display device and method of driving the same are disclosed. The display device that transmits signals between a system board section and a circuit board section through an interface and uses Panel Self-Refresh (hereinafter, abbreviated as ‘PSR’) to reduce power consumption, the circuit board section comprising a PSR controller that, when a PSR On signal is supplied from the system board section, changes the operating frequency of a gate driver and data driver to a frequency higher than a reference frequency for driving the panel with PSR On, set by the system board section.

Abstract translation: 公开了一种显示装置及其驱动方法。 通过接口在系统板部分和电路板部分之间传输信号并使用面板自刷新（以下简称为“PSR”）以降低功耗的显示装置，电路板部分包括PSR控制器，当时 从系统板部分提供PSR On信号，将门驱动器和数据驱动器的工作频率更改为高于用于通过系统板部分设置的PSR On驱动面板的参考频率的频率。

公开(公告)号：US20140320478A1

公开(公告)日：2014-10-30

申请号：US14263720

申请日：2014-04-28

Applicant: LG Display Co., Ltd.

Inventor： Daeseok OH ,  Bogun SEO ,  Yonghwa PARK

IPC: G09G3/00

CPC classification number: G09G3/00 ,  G09G3/2025 ,  G09G3/3614 ,  G09G2310/0218 ,  G09G2310/04 ,  G09G2320/0247

Abstract: A display device for low speed drive includes a display panel formed with gate lines and data lines intersecting the gate lines, wherein a pixel is defined by each crossing of the gate lines and the data lines, a source driver supplying a data voltage to the data lines, a gate driver supplying a gate pulse to the gate lines, and a timing controller which time-divides one frame of received data into n sub-frames, where n is a positive integer equal to or greater than 4, groups the gate lines into n gate groups, controls the gate driver to scan the n gate groups in scan sub-frames corresponding to a portion of the n sub-frames, and control the scan order of the n gate groups in a zigzag form.

Abstract translation: 用于低速驱动的显示装置包括形成有栅极线和与栅极线相交的数据线的显示面板，其中像素由栅极线和数据线的每个交叉限定，向数据提供数据电压的源极驱动器 线路，向栅极线提供栅极脉冲的栅极驱动器，以及定时控制器，其将一帧接收的数据时间分为n个子帧，其中n是等于或大于4的正整数，将栅极线 控制栅极驱动器扫描对应于n个子帧的一部分的扫描子帧中的n个栅极组，并且以锯齿形式控制n个栅极组的扫描顺序。

公开(公告)号：US20240134481A1

公开(公告)日：2024-04-25

申请号：US18214281

申请日：2023-06-25

Applicant: LG DISPLAY CO., LTD.

Inventor： Daeseok OH ,  Yonghwa PARK ,  Daeho PARK

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/20

CPC classification number: G06F3/04184 ,  G06F3/044 ,  G09G3/2007 ,  G09G3/2096 ,  G09G2310/0213 ,  G09G2310/0275 ,  G09G2310/08 ,  G09G2354/00

Abstract: A display device and a driving method thereof may be capable of compensating for noise caused by image data with inverted image data to cancel a noise component. The device includes a display panel divided into a first area and a second area; a first source driving circuit and a second source driving circuit for providing a source signal to the first area and the second area, respectively; a gate driving circuit for providing a scan signal; a touch driving circuit for applying a touch driving signal and sensing a touch signal; and a timing controller. The timing controller controls corresponding circuits to display first image data on the first area during a first display time, and to provide a source signal corresponding to first inverted data obtained by inverting the first image data to the second area during the first display time.

公开(公告)号：US20160322012A1

公开(公告)日：2016-11-03

申请号：US14983772

申请日：2015-12-30

Applicant: LG Display Co., Ltd.

Inventor： Daeseok OH ,  Moonsoo CHUNG

IPC: G09G3/36

CPC classification number: G09G3/3648 ,  G06F3/038 ,  G09G5/00 ,  G09G2310/0224 ,  G09G2340/0435

Abstract: A disclosed display device includes a display panel with a plurality of pixels and a plurality of signal lines respectively connected to the pixels, and a panel driving circuit to drive the signal lines. The display device further includes a timing controller to receive a first panel self-refresh (PSR) signal and an input image data from a host system, to sense whether the input image data has a preset video format based on the first PSR signal and, if the input image data is sensed to have the preset video format, to control the panel driving circuit to perform normal driving of the signal lines at a first frame frequency in a first group of frames and interlaced low-speed driving of the signal lines at a second frame frequency lower than the first frame frequency in a second group of frames to display the input image data.

Abstract translation: 所公开的显示装置包括具有分别连接到像素的多个像素和多个信号线的显示面板和用于驱动信号线的面板驱动电路。 显示装置还包括定时控制器，用于从主机系统接收第一面板自刷新（PSR）信号和输入图像数据，以基于第一PSR信号感测输入图像数据是否具有预设视频格式， 如果输入图像数据被感测为具有预设的视频格式，则控制面板驱动电路以第一组帧中的第一帧频率进行信号线的正常驱动，并且将信号线的隔行低速驱动 在第二组帧中低于第一帧频率的第二帧频，以显示输入图像数据。

公开(公告)号：US20180090049A1

公开(公告)日：2018-03-29

申请号：US15695213

申请日：2017-09-05

Applicant: LG Display Co., Ltd.

Inventor： Jae-Kwang KIM ,  Daeseok OH ,  Jiyoung JUNG

IPC: G09G3/20 ,  G09G3/36

CPC classification number: G09G3/2018 ,  G09G3/3233 ,  G09G3/3611 ,  G09G3/3614 ,  G09G3/3666 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2310/08 ,  G09G2320/0252 ,  G09G2320/0285 ,  G09G2320/0673 ,  G09G2320/0686 ,  G09G2330/02 ,  G09G2340/16 ,  G09G2360/12

Abstract: A display device includes an image signal processor generating modulation data of each pixel region corresponding to a display period of each frame based on an image signal and predetermined modulation value tables which are preset to different gains. The image signal processor includes a block divider and at least two data modulators. The block divider divides the display region into at least two block regions along a second direction. The at least two data modulators correspond to the at least two block regions, modulate gray scale data of each of pixel regions included in each block region based on a modulation value table, and generate modulation data of the pixel regions included in each block region. As a result, a difference in the charge amount caused by line resistance can be compensated according to the overdriving scheme, resulting in prevention of image quality deterioration.

公开(公告)号：US20140320465A1

公开(公告)日：2014-10-30

申请号：US14263733

申请日：2014-04-28

Applicant: LG Display Co., Ltd.

Inventor： Daeseok OH ,  Saichang YUN ,  Juyoung LEE ,  Bogun SEO ,  Yousung NAM ,  Yonghwa PARK

IPC: G09G5/18

CPC classification number: G09G3/3688 ,  G09G2310/0227 ,  G09G2310/0248 ,  G09G2310/0297 ,  G09G2310/067 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2340/0435

Abstract: A display device for low speed drive includes a display panel including gate lines, data lines, and pixels respectively formed at crossings of the gate lines and the data lines, a source driver supplying data voltages to the data lines, a gate driver supplying a gate pulse to the gate lines, and a timing controller which time-divides one frame into n sub-frames, where n is a positive integer equal to or greater than 2, groups the gate lines into n gate groups, controls an operation of the gate driver in each of the n sub-frames to complete a scan operation of a corresponding gate group during a scan period of each of the n sub-frames, generates a buffer operation control signal, and cuts off a driving power source applied to buffers of the source driver during a skip period excluding the scan period from each of the n sub-frames.

Abstract translation: 用于低速驱动的显示装置包括显示面板，包括分别在栅极线和数据线的交叉处形成的栅极线，数据线和像素，向数据线提供数据电压的源极驱动器，提供栅极的栅极驱动器 脉冲到栅极线，以及定时控制器，其将一帧时间分割成n个子帧，其中n是等于或大于2的正整数，将栅极线组合成n个栅极组，控制栅极的操作 驱动器，以在n个子帧中的每一个的扫描周期期间完成对应的门组的扫描操作，生成缓冲器操作控制信号，并且切断施加到所述n个子帧的缓冲器的驱动电源 在除了n个子帧中的每一个的扫描周期之外的跳过期间的源驱动器。

公开(公告)号：US20140132576A1

公开(公告)日：2014-05-15

申请号：US13954543

申请日：2013-07-30

Applicant: LG Display Co., Ltd.

Inventor： Yonghwa PARK ,  Daeseok OH

IPC: G09G5/00

CPC classification number: G09G3/20 ,  G09G3/3685 ,  G09G5/393 ,  G09G2310/08 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2370/08

Abstract: A display device includes a display panel including data lines, a source driver positioned at one side of the display panel, and a timing controller which sequentially stores digital video data in a plurality of line memories, starts to generate an output data enable signal in conformity with a first writing start timing of a last line memory of the line memories, adjusts a pulse width of the output data enable signal of each horizontal pixel line based on a previously determined charge time graph, reads out the digital video data from the line memories in synchronization with rising edges of the output data enable signal, and generates a source output enable signal having the same pulse width each time each line memory finishes reading out the data.

Abstract translation: 显示装置包括：显示面板，包括数据线，位于显示面板一侧的源极驱动器以及顺序地将数字视频数据存储在多个行存储器中的定时控制器，开始产生一致的输出数据使能信号 利用行存储器的最后一行存储器的第一写入开始定时，基于先前确定的充电时间图来调整每个水平像素线的输出数据使能信号的脉冲宽度，从行存储器读出数字视频数据 与输出数据使能信号的上升沿同步，并且每当行存储器完成读出数据时，产生具有相同脉冲宽度的源极输出使能信号。