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1. 发明授权

US10860126B2 Display device with built-in touch sensors 有权
公开(公告)号：US10860126B2
公开(公告)日：2020-12-08
申请号：US16192588
申请日：2018-11-15
申请人： LG Display Co., Ltd.
发明人： Joohee Lee , Moonsoo Chung , Yonghwa Park
IPC分类号： G06F3/041 , G09G3/22 , H03M1/12 , G06F3/044 , G09G3/20
摘要： A display device with built-in touch sensors comprises: a display panel with built-in touch sensors; and a touch driver that converts a sensed voltage of the touch sensors into sensed data, wherein the touch driver comprises: an enable signal generator that compares the sensed voltage with a preset offset voltage and outputs an enable signal at a first level if the sensed voltage is higher than or equal to the offset voltage and outputs the enable signal at a second level if the sensed voltage is lower than the offset voltage; and an analog-to-digital converter that converts the sensed voltage into the sensed data when the enable signal is at the first level.

2. 发明授权

US10515604B2 Display device and driving method thereof 有权
公开(公告)号：US10515604B2
公开(公告)日：2019-12-24
申请号：US15710583
申请日：2017-09-20
申请人： LG DISPLAY CO., LTD.
发明人： Moonsoo Chung , Yousung Nam
IPC分类号： G09G3/36 , G06F3/038
摘要： A liquid-crystal display device and a driving method thereof are disclosed. The driving method of the liquid-crystal display device comprises: generating first and second power supply voltages; generating gamma-compensated voltages based on the first and second power supply voltages; converting data of an input image to the gamma-compensated voltages to output data voltages; distributing, by a multiplexer, the data voltages output from the data driver to a plurality of data lines; and varying at least one of the first and second power supply voltages at a given time interval.

3. 发明授权

US10210815B2 Liquid crystal display and dimming control method thereof 有权
公开(公告)号：US10210815B2
公开(公告)日：2019-02-19
申请号：US15333597
申请日：2016-10-25
申请人： LG DISPLAY CO., LTD.
发明人： DaeSeok Oh , Moonsoo Chung
IPC分类号： G09G3/36 , G09G3/34 , G02F1/1343 , G02F1/1368 , G02F1/1333 , G02F1/1335
摘要： A dimming control method of a backlight unit of a liquid crystal display (LCD) device driven at a driving frequency (f) of 60 Hz or lower includes a first step of driving the backlight unit using a first dimming value, and a second step of driving the backlight unit using a second dimming value higher than the first dimming value. The first step and the second step are alternately repeated and a repetition number of the second step within one period T of a driving frequency (f) is set to satisfy a condition of “{(60/f)−1}”. Here, f is a natural number lower than 60.

4. 发明授权

US11545083B2 Driving circuit and display device using the same 有权
公开(公告)号：US11545083B2
公开(公告)日：2023-01-03
申请号：US17472399
申请日：2021-09-10
申请人： LG Display Co., Ltd.
发明人： Moonsoo Chung , Wookyu Sang
IPC分类号： G09G3/3208
摘要： An electroluminescent display device using a variable refresh rate (VRR) mode. The occurrence of a difference in luminance at a time point of a refresh rate change is reduced, thereby preventing viewers from perceiving the change of the refresh rate.

5. 发明授权

US10860134B2 Display device 有权
公开(公告)号：US10860134B2
公开(公告)日：2020-12-08
申请号：US16655824
申请日：2019-10-17
申请人： LG Display Co., Ltd.
发明人： Moonsoo Chung , Joohee Lee
IPC分类号： G06F3/042 , G06F3/041 , G09G3/20
摘要： The display device of the present disclosure may comprise a display panel equipped with pixels each representing image data and photo sensors each outputting an electric signal through a sensing line responding to light, a data driving circuit providing a data voltage corresponding to the image data to the pixel through a data line, a gate driving circuit supplying, through a gate line, a scan signal for controlling an application of the data voltage to the pixel disposed on a horizontal line and for controlling a connection of the photo sensor disposed on a corresponding horizontal line and the sensing line, a sensing driving circuit outputting digital sensing data by summing the electric signals of two photo sensors disposed on different horizontal lines and sharing the sensing line; and a timing controller supplying control signals for controlling the data driving circuit, the gate driving circuit and the sensing driving circuit.

6. 发明申请

US20150187308A1 Display Device Capable Of Driving At Low Speed 有权
标题翻译：低速驾驶的显示装置
公开(公告)号：US20150187308A1
公开(公告)日：2015-07-02
申请号：US14308387
申请日：2014-06-18
申请人： LG Display Co., Ltd.
发明人： Seunghwan Shin , Yonghwa Park , Daeseok Oh , Moonsoo Chung
IPC分类号： G09G3/36
CPC分类号： G09G3/3614 , G09G3/2022 , G09G3/3688 , G09G2310/0218 , G09G2310/0224 , G09G2310/04 , G09G2310/08 , G09G2320/0233 , G09G2320/0247 , G09G2330/021 , G09G2340/0435
摘要： A display device capable of driving at low speed is disclosed. Pixels connected to a first data line on odd-numbered display lines of a display panel are positioned on one side of the left and right sides of the first data line, and pixels connected to the first data line on even-numbered display lines of the display panel are positioned on the other side of the first data line based on a Z-inversion scheme. When a mode conversion control signal for switching to an interlaced low speed driving mode is input during a normal drive, in which a length of one frame is set to P, a timing controller expands a length of one frame for a low speed drive to (n×P), where n is a positive integer equal to or greater than 2 and assigns a length P to each of n sub-frames of the one frame.
摘要翻译：公开了能够以低速行驶的显示装置。连接到显示面板的奇数显示行上的第一数据线的像素位于第一数据线的左侧和右侧的一侧，并且连接到第一数据线上的偶数显示行上的像素显示面板基于Z反转方案位于第一数据线的另一侧。当在将一帧长度设置为P的正常驱动期间输入用于切换到隔行低速驱动模式的模式转换控制信号时，定时控制器将用于低速驱动的一帧的长度扩展为 n×P），其中n是等于或大于2的正整数，并且为一帧的n个子帧中的每一个分配长度P.

7. 发明申请

US20220101785A1 Driving Circuit and Display Device Using the Same 有权
公开(公告)号：US20220101785A1
公开(公告)日：2022-03-31
申请号：US17472399
申请日：2021-09-10
申请人： LG Display Co., Ltd.
发明人： Moonsoo Chung , Wookyu Sang
IPC分类号： G09G3/3208
摘要： An electroluminescent display device using a variable refresh rate (VRR) mode. The occurrence of a difference in luminance at a time point of a refresh rate change is reduced, thereby preventing viewers from perceiving the change of the refresh rate.

8. 发明授权

US10565940B2 Display device having optical sensor 有权
公开(公告)号：US10565940B2
公开(公告)日：2020-02-18
申请号：US15842775
申请日：2017-12-14
申请人： LG DISPLAY CO., LTD.
发明人： Joohee Lee , Moonsoo Chung
IPC分类号： G06F3/038 , G09G5/00 , G09G3/34 , G09G3/36
摘要： Disclosed is a display device having a plurality of gate lines, a plurality of pixels connected with the plurality of gate lines and an optical sensor connected with a k-th gate line among the plurality of gate lines. A gate pulse applied to the k-th gate line includes a sensing gate pulse applied during a (k−i)-th horizontal period and a pixel driving gate pulse applied during a k-th horizontal period. The optical sensor connected with the k-th gate line outputs a sensing voltage in response to the sensing gate pulse. The pixel connected with the k-th gate line is applied with a data voltage in response to the pixel driving gate pulse.

9. 发明申请

US20200051499A1 DISPLAY DEVICE 审中-公开
公开(公告)号：US20200051499A1
公开(公告)日：2020-02-13
申请号：US16522497
申请日：2019-07-25
申请人： LG Display Co., Ltd.
发明人： Moonsoo Chung , Joohee LEE
IPC分类号： G09G3/3233 , G09G3/3275 , G09G3/3266 , G09G5/377
摘要： The display device according to the present disclosure may comprise a display panel equipped with a plurality of pixels and a plurality of photo sensors, a data driving circuit, a gate driving circuit, and a timing controller. The source drive IC included in the data driving circuit may comprise a DAC, one or more sensing units to receive an electrical signal from the photo sensor in a display period and to receive a sensing signal from the pixel in a blank period, and an ADC to convert the signal output from the sensing unit into digital data.

10. 发明授权

US10049629B2 Display device capable of low-speed driving and method of driving the same 有权
公开(公告)号：US10049629B2
公开(公告)日：2018-08-14
申请号：US14983772
申请日：2015-12-30
申请人： LG Display Co., Ltd.
发明人： Daeseok Oh , Moonsoo Chung
IPC分类号： G06F3/038 , G09G5/00 , G09G3/36
摘要： 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.

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