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公开(公告)号：US20180308414A1
公开(公告)日：2018-10-25
申请号：US15868581
申请日：2018-01-11
发明人： Sun-Koo Kang , Jae-Han Lee , Ok-Kwon Shin
CPC分类号： G09G3/2003 , G09G3/3614 , G09G3/3648 , G09G3/3674 , G09G3/3677 , G09G3/3685 , G09G3/3688 , G09G2300/0426 , G09G2310/027 , G09G2310/0289 , G09G2310/063 , G09G2310/08 , G09G2320/0233 , G09G2320/0242
摘要： A display apparatus includes a display panel, a first driver and a second driver. The display panel includes a plurality of gate lines and a plurality of data lines. The display panel is configured to display an image based on input image data. The first driver is configured to output compensating gate signals having the same timing to the gate lines during a first period and scan gate signals having different timings to the gate lines during a second period. The second driver is configured to apply a compensating data voltage corresponding to a compensating grayscale value to the data lines during the first period and a target data voltage corresponding to a target grayscale value to the data lines during the second period.
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公开(公告)号：US09646561B2
公开(公告)日：2017-05-09
申请号：US14818352
申请日：2015-08-05
发明人： Jae-Han Lee , Sun-Koo Kang , Sooyeon Kim , Young-Il Ban
CPC分类号： G09G3/3688 , G09G3/006 , G09G2300/0426 , G09G2310/027
摘要： A display device includes a display panel, a gate driver, a data driver, and a driving control unit. The display panel includes pixels connected to a corresponding one of gate lines and a corresponding one of data lines. The gate driver drives the gate lines. The data driver includes first pads and second pads. The first pads are connected to each of first data lines of the data lines, and the second pads are connected to each of second data lines of the data lines. The driving control unit provides control signals and a data signal to the data driver, and to control the gate driver. The data driver includes a digital-to-analog converter and a switching circuit. The digital-to-analog converter converts the data signal into analog signals. The switching circuit sequentially outputs the analog signals to the first pads during a test mode.
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公开(公告)号：US10019954B2
公开(公告)日：2018-07-10
申请号：US14849142
申请日：2015-09-09
发明人： Won-Tae Kim , Sun-Koo Kang , Jae-Han Lee , Sun-Kyu Son
IPC分类号： G09G3/36
CPC分类号： G09G3/3614 , G09G3/3648 , G09G2360/16
摘要： A liquid crystal display device, including: pixels; data lines and scan lines coupled to the pixels; and a driver configured to supply a scan signal to the scan lines, and supply a data voltage to the data lines. The data lines include first to third data lines, to which a data voltage having a positive polarity is supplied, and which are adjacent to each other, and fourth to sixth data lines, to which a data voltage having a negative polarity is supplied, and which are adjacent to each other.
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4.发明授权公开(公告)号：US09984643B2
公开(公告)日：2018-05-29
申请号：US15145172
申请日：2016-05-03
发明人： Young-Il Ban , Sun-Koo Kang , Tae-Gon Kim
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G3/3607 , G09G2300/0452 , G09G2310/027 , G09G2320/0673
摘要： A data driver includes a first data voltage generator, a data converter and a second data voltage generator. The first data voltage generator is configured to generate a first data voltage based on first pixel data and configured to output the first data voltage to a first data line, the first pixel data being generated based on a first gamma curve. The data converter is configured to convert second pixel data to first converted pixel data, the second pixel data being generated based on the first gamma curve, the first converted pixel data being generated based on a second gamma curve different from the first gamma curve. The second data voltage generator is configured to generate a second data voltage based on the first converted pixel data and configured to output the second data voltage to a second data line.
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公开(公告)号：US20180046007A1
公开(公告)日：2018-02-15
申请号：US15671415
申请日：2017-08-08
发明人： Jae-Han Lee , Sun-Koo Kang , Taegon Kim
IPC分类号： G02F1/133 , G02F1/1362 , G09G3/3241
CPC分类号： G02F1/13306 , G02F1/13336 , G02F1/136213 , G02F1/136286 , G09G3/3241 , G09G3/3688 , G09G2320/0223
摘要： A display apparatus includes a display panel, a gate driving part, and a data driving part. The display panel is configured to display an image, and includes a gate line and data lines. The gate driving part is configured to output a gate signal to the gate line. The data driving part includes a plurality of data driving integrated circuit parts. Each of the plurality of data driving integrated circuit parts includes channels, configured to output data signals to the data lines, and a dummy data channel. A sensing pin, configured to receive the gate signal, is formed in each dummy data channel.
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公开(公告)号：US11893946B2
公开(公告)日：2024-02-06
申请号：US18098922
申请日：2023-01-19
发明人： Sun-Koo Kang , Hyunha Yang , Myeongbin Lim
IPC分类号： G09G3/3275 , G09G3/3233
CPC分类号： G09G3/3275 , G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2310/0291 , G09G2310/08 , G09G2330/021 , G09G2330/028
摘要： A display device includes: a display panel, a data driver, and a scan driver. The data driver outputs data signals during a writing frame and outputs a bias voltage during a holding frame. The data driver includes a plurality of driving chips, and each of the driving chips includes: a gamma voltage generator, a data converter, a main output part for outputting corresponding data signals of the data signals during the writing frame, and a sub-output part for outputting the bias voltage during the holding frame. The gamma voltage generator of a selected driving chip among the plurality of driving chips is electrically connected to the sub-output parts disposed in the plurality of driving chips, respectively.
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公开(公告)号：US11676553B2
公开(公告)日：2023-06-13
申请号：US16449989
申请日：2019-06-24
发明人： Wontae Kim , Sun-Koo Kang
IPC分类号： G09G3/36
CPC分类号： G09G3/3648 , G09G3/3685 , G09G3/3696 , G09G2310/0297
摘要： A display device includes a display panel including first data lines, second data lines, gate lines, and a plurality of pixels, a voltage generator which generates a first driving voltage and a second driving voltage, and a source driver which generates a first data voltage having a first polarity based on the first driving voltage and a second data voltage having a second polarity based on the second driving voltage. The source driver includes a first source driver coupled to the first data lines and a second source driver coupled to the second data lines. The voltage generator alternately provides the first driving voltage and the second driving voltage to each of the first source driver and the second source driver.
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公开(公告)号：US10147387B2
公开(公告)日：2018-12-04
申请号：US15455342
申请日：2017-03-10
发明人： Sun-Koo Kang , Taegon Kim , Seungnam Park , Ok-Kwon Shin
IPC分类号： G09G3/36
摘要： A method of driving a display panel includes, a data driver outputting a precharge voltage to a plurality of pixels of the display panel during a first duration of a horizontal period, the data driver outputting a grayscale voltage to the pixels of the display panel during a second duration of the horizontal period and the data driver initializing the precharge voltage during the second duration of the horizontal period.
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公开(公告)号：US11521558B2
公开(公告)日：2022-12-06
申请号：US17138017
申请日：2020-12-30
发明人： Won Tae Kim , Sun-Koo Kang
IPC分类号： G09G3/3275 , G09G3/3233
摘要： The present disclosure relates to a display device. The display device includes a display panel, data lines, a constant voltage line, a feedback line, and a display driver. The display panel includes pixels. The data lines transfer data voltages to the pixels. The constant voltage line transfers a constant voltage to the pixels. The feedback line is coupled to the constant voltage line. The display driver is configured to sense a change amount of the constant voltage through the feedback line, generate compensated image data by compensating image data according to the sensed change amount of the constant voltage, and provide the data voltages corresponding to the compensated image data to the pixels.
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公开(公告)号：US11176889B2
公开(公告)日：2021-11-16
申请号：US16927729
申请日：2020-07-13
发明人： Wontae Kim , Bong-Hyun You , Sun-Koo Kang , Joon Chul Goh , Soon-Dong Kim , Jin-Wook Yang , Ki Hong Song
IPC分类号： G09G3/3258 , G09G3/3275
摘要： A display apparatus includes a display panel, a data driver, and a power voltage generator. The display panel includes a plurality of pixels and configured to display an image. The data driver is configured to apply a data voltage to the display panel. The power voltage generator is configured to provide a power voltage and an initialization voltage to the display panel. The power voltage generator is configured to receive a feedback initialization voltage from the display panel and configured to compensate the initialization voltage based on the feedback initialization voltage.
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