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公开(公告)号：US09898952B2
公开(公告)日：2018-02-20
申请号：US14922605
申请日：2015-10-26
发明人： Mitsuru Fujii
CPC分类号： G09G3/20 , G09G3/32 , G09G2320/0223 , G09G2320/0233 , G09G2320/0285 , G09G2320/045 , G09G2360/16
摘要： A data compensation device includes a current calculator which calculates an average current of each of blocks included in a pixel array based on an input data, a data enable signal, a horizontal synchronization signal and a vertical synchronization signal, a voltage drop info provider which provides a bus voltage drop information of predetermined bus points and an array voltage drop information of predetermined array points, the bus points being included in a power supply bus wiring which is connected to the pixel array, the array points being included in the pixel array, a data compensation circuit configured to provide a compensation data corresponding to the input data based on the average current, the bus voltage drop information and the array voltage drop information, and an adder configured to provide a compensation result data by adding the input data and the compensation data.
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公开(公告)号：US10993431B2
公开(公告)日：2021-05-04
申请号：US16851188
申请日：2020-04-17
发明人： Mitsuru Fujii , Ji Ye Moon , Ju Gon Seok , Hoo Hyeon Lee
摘要： A display device includes: a data driver for providing data voltages to data output lines; a data divider for coupling the data output lines to data lines; and a data compensator for compensating data voltages based on a load difference between data voltages in adjacent pixel rows.
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公开(公告)号：US09852675B2
公开(公告)日：2017-12-26
申请号：US14793847
申请日：2015-07-08
发明人： Mitsuru Fujii
IPC分类号： G09G3/20 , G09G3/3258
CPC分类号： G09G3/2003 , G09G3/3258 , G09G2320/0223 , G09G2320/0233 , G09G2320/0285
摘要： A data compensator includes a reference voltage drop generator, a voltage drop measurer, a compensation data generator, and an output block. The reference voltage drop generator generates reference voltage drops for color image data. The voltage drop measurer calculates pixel voltage drops based on color image data. The compensation data generator generates different color compensation data to compensate luminance and color coordinate distortion.
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公开(公告)号：US10380947B2
公开(公告)日：2019-08-13
申请号：US15802296
申请日：2017-11-02
发明人： Mitsuru Fujii , In Soo Wang
IPC分类号： G09G3/3258 , H01L27/32 , H01L51/52 , G09G3/3291
摘要： A display including first to n-th pixels electrically connected with a first data line, and a data compensator for generating a reference voltage of a k-th pixel (k being between 1 and n) based on a first coupling voltage between the k-th pixel and the first data line and a second coupling voltage between the k-th pixel and a second data line, and comparing an average voltage generated based on a reference voltage of at least one of the first to n-th pixels with the reference voltage of the k-th pixel to generate a compensation signal, wherein the reference voltage of at least one of the first to n-th pixels is based on a coupling voltage between the at least one of the first to n-th pixels and the first data line and based on a coupling voltage between the pixels and the second data line.
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公开(公告)号：US09715849B2
公开(公告)日：2017-07-25
申请号：US14626131
申请日：2015-02-19
发明人： Mitsuru Fujii
IPC分类号： G09G3/3225
CPC分类号： G09G3/3225 , G09G2320/0223 , G09G2320/0233 , G09G2320/0285 , G09G2320/029 , G09G2320/043 , G09G2360/16
摘要： A data compensation circuit and OLED display including the same are disclosed. In one aspect, the circuit compensates a voltage drop of a power voltage applied to a display panel of the display. The circuit includes an average current calculator configured to calculate an average current value of each of M×N pixel blocks. The circuit also includes a voltage drop calculator configured to calculate one or more pixel block voltage drops of the power voltage of each of the selected target pixel blocks based at least in part on an X-axis voltage drop and a Y-axis voltage drop of each of target pixel block. The circuit further includes an interpolator configured to interpolate the pixel block voltage drops of adjacent target pixel blocks so as to calculate a pixel voltage drop of a target pixel selected among one of the target pixel blocks.
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公开(公告)号：US09218758B2
公开(公告)日：2015-12-22
申请号：US14038520
申请日：2013-09-26
发明人： Mitsuru Fujii
CPC分类号： G09G3/3233 , G09G3/2003 , G09G3/3266 , G09G3/3275 , G09G2310/0297 , G09G2310/08 , G09G2320/0219 , G09G2330/021 , G09G2330/025 , G09G2330/028
摘要： A display device is provided including a display unit including a plurality of color pixels; a scan driver that sequentially applies a gate-on voltage scan signal to a plurality of scan lines that are connected to the color pixels; a demux unit that is connected to a plurality of color data lines that are connected to the color pixels, and that sequentially selects the plurality color data lines at a predetermined time interval; and a data driver that applies a data signal to each of the plurality of color data lines that are sequentially selected in the demux unit, and that applies a previous data signal to at least one of the plurality of color data lines during the predetermined time interval, wherein the previous data signal has a same voltage as a voltage applied to one of the plurality of color data lines before the predetermined time interval.
摘要翻译： 提供一种显示装置，包括：包括多个彩色像素的显示单元; 扫描驱动器，其对连接到所述彩色像素的多条扫描线顺序施加栅极导通电压扫描信号; 连接到连接到彩色像素的多个彩色数据线并且以预定时间间隔顺序地选择多个彩色数据线的解复用单元; 以及数据驱动器，其将数据信号施加到在所述解复用单元中顺序选择的所述多个颜色数据线中的每一个，并且在所述预定时间间隔期间将先前数据信号应用于所述多个颜色数据线中的至少一个 其中，所述先前数据信号具有与在所述预定时间间隔之前施加到所述多个彩色数据线之一的电压相同的电压。
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公开(公告)号：US09830847B2
公开(公告)日：2017-11-28
申请号：US14590762
申请日：2015-01-06
发明人： Mitsuru Fujii
IPC分类号： G09G3/20 , G09G3/3233
CPC分类号： G09G3/2003 , G09G3/3233 , G09G2310/027 , G09G2310/0286 , G09G2320/0247 , G09G2320/0626 , G09G2320/0673 , G09G2330/028
摘要： Display device and method of driving the same are provided. According to an embodiment of the present invention, a display device includes a display unit which includes a plurality of pixels, and a control unit which adjusts luminance by maintaining the same gamma gray voltage during a plurality of frames and changing a dimming gain ratio of input data in each frame if a luminance level changes during the frames.
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公开(公告)号：US20160035264A1
公开(公告)日：2016-02-04
申请号：US14590762
申请日：2015-01-06
发明人： Mitsuru Fujii
IPC分类号： G09G3/20
CPC分类号： G09G3/2003 , G09G3/3233 , G09G2310/027 , G09G2310/0286 , G09G2320/0247 , G09G2320/0626 , G09G2320/0673 , G09G2330/028
摘要： Display device and method of driving the same are provided. According to an embodiment of the present invention, a display device includes a display unit which includes a plurality of pixels, and a control unit which adjusts luminance by maintaining the same gamma gray voltage during a plurality of frames and changing a dimming gain ratio of input data in each frame if a luminance level changes during the frames.
摘要翻译： 提供了显示装置及其驱动方法。 根据本发明的实施例，显示装置包括包括多个像素的显示单元和控制单元，其通过在多个帧期间保持相同的伽马灰度电压并改变输入的调光增益比来调节亮度 如果在帧期间亮度级别改变，则每帧中的数据。
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公开(公告)号：US11189218B2
公开(公告)日：2021-11-30
申请号：US17021303
申请日：2020-09-15
发明人： Mitsuru Fujii , Ji Ye Moon , Ju Gon Seok , Hoo Hyeon Lee
IPC分类号： G09G3/32
摘要： A display device and a driving method thereof are disclosed. The display device includes a display panel including a plurality of pixels connected to data lines; a data driver connected to the data lines and configured to determine first data voltages corresponding to the pixels, to generate second data voltages by adding a compensation voltage to the first data voltages, and to supply the second data voltages to the pixels through the data lines; and a crosstalk compensator connected to the data driver and configured to calculate the compensation voltage by comparing the first data voltages corresponding to pixels disposed in at least three adjacent horizontal lines.
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公开(公告)号：US10186194B2
公开(公告)日：2019-01-22
申请号：US14933730
申请日：2015-11-05
发明人： Mitsuru Fujii
IPC分类号： G09G3/20 , G09G3/3233 , G09G3/3266 , G09G3/3275
摘要： A display device is provided including a display unit including a plurality of color pixels; a scan driver that sequentially applies a gate-on voltage scan signal to a plurality of scan lines that are connected to the color pixels; a demux unit that is connected to a plurality of color data lines that are connected to the color pixels, and that sequentially selects the plurality color data lines at a predetermined time interval; and a data driver that applies a data signal to each of the plurality of color data lines that are sequentially selected in the demux unit, and that applies a previous data signal to at least one of the plurality of color data lines during the predetermined time interval, wherein the previous data signal has a same voltage as a voltage applied to one of the plurality of color data lines before the predetermined time interval.
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