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公开(公告)号：US10062350B2
公开(公告)日：2018-08-28
申请号：US14778300
申请日：2015-03-23
发明人： Hongyuan Xu
CPC分类号： G09G3/3696 , G02F1/13624 , G02F2001/134354 , G09G3/3614 , G09G3/3655 , G09G3/3688 , G09G2310/08 , G09G2320/0219 , G09G2320/0242 , G09G2320/0247 , G09G2330/02
摘要： Disclosed is a voltage conversion circuit, display panel, and method for driving the display panel. The voltage conversion circuit comprises: a voltage-dividing unit which receives a voltage of a data signal of a main pixel region, and divides the voltage of the data signal of the main pixel region so as to output an intermediate voltage, and a reverse unit which, under control of a first clock signal and a second clock signal, inversely converts the intermediate voltage to a voltage of the data signal of a sub pixel region, rendering polarity of a pixel voltage of the sub pixel region and polarity of a pixel voltage of the main pixel region opposite to each other.
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公开(公告)号：US20180240433A1
公开(公告)日：2018-08-23
申请号：US15556516
申请日：2017-02-17
发明人： Chenxi LIU , Shou LI , Chao ZHANG , Jian ZHANG
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G3/36 , G09G3/3614 , G09G3/3648 , G09G2320/0252 , G09G2320/0285 , G09G2340/16
摘要： A source driver, a method and a display device are provided. The source driver includes a data receiving circuit, a peak processing circuit, a control circuit, a digital-to-analog conversion circuit, and a driver. The data receiving circuit is configured to receive pixel data and a control timing signal; the peak processing circuit is configured to generate peak over-driving data according to the received pixel data; the control circuit is configured to control to sequentially output the peak over-driving data and the corresponding pixel data to the digital-to-analog conversion circuit according to the received control timing signal; the digital-to-analog conversion circuit is configured to receive the peak over-driving data and the pixel data, convert the peak over-driving data into a first driving signal, and convert the pixel data into a second driving signal; and the driver is configured to output the first driving signal and the second driving signal.
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公开(公告)号：US20180240424A1
公开(公告)日：2018-08-23
申请号：US15903664
申请日：2018-02-23
申请人： Japan Display Inc.
发明人： Yoshiro Aoki , Toshiharu Matsushima
CPC分类号： G09G3/3648 , G09G3/3406 , G09G3/3677 , G09G3/3688 , G09G2300/0426 , G09G2320/0252 , G09G2320/0271 , G09G2320/029 , G09G2340/16
摘要： According to one embodiment, a display driver configured to control a display operation of an active-matrix display device, wherein the display device includes a display area in which liquid crystal pixels are arranged in a matrix form, a plurality of scanning lines arranged along rows, a plurality of signal lines arranged along columns, a plurality of switching elements arranged in the vicinities of positions at which the scanning lines and the signal lines intersect each other, and a backlight, and the display driver controls preparatory write of writing a signal of a predetermined gradation to the liquid crystal pixels, thereafter controls sequential write of an image signal to the liquid crystal pixels, and at the time after an elapse of a predetermined time from the preparatory write, makes the backlight light up.
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公开(公告)号：US20180226045A1
公开(公告)日：2018-08-09
申请号：US15866145
申请日：2018-01-09
发明人： Young Soo SOHN , Min Je KIM , Jin Hyuk JANG
CPC分类号： G09G3/3688 , G02F1/13306 , G02F2203/30 , G09G3/3607 , G09G3/3614 , G09G3/3655 , G09G5/02 , G09G2320/0209 , G09G2320/0247 , G09G2340/16 , G09G2360/145 , G09G2360/16 , G09G2360/18
摘要： A display device includes: a data mapping portion including a memory having addresses corresponding to locations of pixels and which maps an input image signal to a corresponding address; a pattern detector which detects an image quality deterioration pattern in pattern detection areas from the mapped input image signal; a pattern counting portion which generates pattern information by counting the image quality deterioration pattern; a data analyzing portion which divides the input image signal for each frame and selects a representative value of an input image signal of a frame; and a controller which generates an image data signal based on a first inversion method or a second inversion method by determining whether the counted number of the image quality deterioration pattern exceeds a threshold value based on the pattern information, and determines a level of a common voltage corresponding to the representative value.
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75.发明申请公开(公告)号：US20180211579A1
公开(公告)日：2018-07-26
申请号：US15880123
申请日：2018-01-25
发明人： Jong Kon Bae , Dong Hwy Kim , Hong Kook Lee , Dong Kyoon Han , Yun Pyo Hong
IPC分类号： G09G3/20
CPC分类号： G09G3/2003 , G09G3/3607 , G09G3/3688 , G09G3/3696 , G09G2310/0243 , G09G2310/027 , G09G2310/0286 , G09G2310/0291 , G09G2310/0297 , G09G2320/0666 , G09G2320/0673 , G09G2330/02 , G09G2330/021
摘要： An electronic device is provided. The electronic device includes a display panel including a plurality of source line groups selectively connected with a plurality of source amplifiers and panel switches located between the plurality of source line groups and the plurality of source amplifiers and a display driver integrated circuit (DDI) configured to drive the display panel and including the plurality of source amplifiers, decoders respectively connected to the plurality of source amplifiers, a logic circuit configured to provide display data to the decoders, a gamma generator configured to supply a gamma voltage to the decoders, and at least one switch configured to selectively connect the plurality of source amplifiers with the plurality of source line groups.
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公开(公告)号：US20180210261A1
公开(公告)日：2018-07-26
申请号：US15327232
申请日：2016-12-05
申请人： Yu-yeh CHEN , Nianmao WANG
发明人： Yu-yeh CHEN , Nianmao WANG
IPC分类号： G02F1/1345 , H01L23/00 , H05K1/14 , H05K1/18 , G09G3/36
CPC分类号： G02F1/13452 , G09G3/3688 , G09G3/3696 , G09G2320/0276 , H01L24/50 , H01L2924/1426 , H05K1/147 , H05K1/189 , H05K2201/049 , H05K2201/10136
摘要： Provided are a liquid crystal panel drive circuit and a liquid crystal display device. The liquid crystal panel drive circuit comprises a first signal transmission board, a second signal transmission board, a Gamma voltage generation module and N data drive chip, and the first signal transmission board and the second signal transmission board are located at the same side of the liquid crystal panel and are separately located with the liquid crystal panel respectively, and the Gamma voltage generation module is located on the first signal transmission board employed to generate an original Gamma voltage signal, and the first data drive chip to the (N-M)th data drive chip are separately located between the first signal transmission board and the liquid crystal panel, and the (N-M+1)th data drive chip to the Nth data drive chip are separately located between the second signal transmission board and the liquid crystal panel.
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公开(公告)号：US20180197446A1
公开(公告)日：2018-07-12
申请号：US15791479
申请日：2017-10-24
发明人： Dae Sik LEE , Jong Jae LEE , Su Jin KIM , Yang Uk NAM
CPC分类号： G09G3/006 , G09G3/3677 , G09G3/3688 , G09G3/3696 , G09G2330/021 , G09G2330/08 , G09G2330/12
摘要： A display device includes a display unit, a driving voltage supply unit which supplies a driving voltage to the display unit, a ripple detection circuit which detects the number of times a ripple of the driving voltage is generated, and a controller which controls the driving voltage supply unit so as to change the driving voltage based on the number of times the ripple is generated.
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78.发明申请公开(公告)号：US20180188865A1
公开(公告)日：2018-07-05
申请号：US15812702
申请日：2017-11-14
申请人： LG Display Co., Ltd.
发明人： Hoon JANG , Soon-Dong CHO , Juno HUR , Dong-Ju KIM , Won-Yong JANG
CPC分类号： G06F3/0412 , G06F3/0416 , G06F3/0418 , G06F3/044 , G06F2203/04107 , G09G3/3677 , G09G3/3688 , G09G2310/08 , G09G2330/02 , H03F3/45179 , H03F2203/45116 , H03F2203/45151
摘要： Disclosed are a touch power circuit and a touch display device in which an operational amplifier buffers an input pulse having a first voltage and a higher second voltage alternate, and uses the buffered input pulse to provide an output pulse. The operational amplifier includes a non-inverting input terminal to which the input pulse is supplied, an inverting input terminal connected to the output terminal, and an output unit driven according to a result of amplifying a difference between a voltage of the non-inverting input terminal and a voltage of the inverting input terminal and configured to charge and discharge the output terminal. The circuits and devices may further include an offset voltage applier configured to supply an offset voltage having a first polarity to the non-inverting input terminal and/or the inverting input terminal to level-shift the input pulse.
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公开(公告)号：US10013931B2
公开(公告)日：2018-07-03
申请号：US15391568
申请日：2016-12-27
发明人： Takayuki Iwasa
CPC分类号： G09G3/3607 , G09G3/006 , G09G3/2022 , G09G3/3688 , G09G2310/0289 , G09G2310/0291 , G09G2310/08 , G09G2320/029 , G09G2330/12
摘要： According to one embodiment, each pixel of a liquid crystal display device includes: a switch configured to sample subframe data; a storage unit configured to hold the subframe data sampled by the switch, the storage unit and the switch constituting an SRAM cell; and a conductive switch disposed between a liquid crystal display element and an adjacent pixel. A range of a source voltage of NMOS and PMOS transistors constituting each inverter constituting the storage unit of one pixel is configured to be able to be set separately from a range of a source voltage of NMOS and PMOS transistors constituting each inverter constituting the storage unit of another pixel.
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公开(公告)号：US10013929B2
公开(公告)日：2018-07-03
申请号：US14436056
申请日：2015-01-21
发明人： Peng Du , Ming-Hung Shih , Chih-Tsung Kang , Je-Hao Hsu , Qibiao Lv
IPC分类号： G09G3/36 , G02F1/1343 , G02F1/1362 , G02F1/1368
CPC分类号： G09G3/3607 , G02F1/134309 , G02F1/13624 , G02F1/136286 , G02F1/1368 , G02F2001/134345 , G02F2201/121 , G09G3/3655 , G09G3/3688 , G09G2300/0426 , G09G2300/0447
摘要： The invention provides a thin film transistor (TFT) array substrate and a display panel. The TFT array substrate is disposed with multiple pixels arranged in an array. Each pixel includes first through third sub-pixels sequentially arranged along a first direction. The first through third sub-pixels are connected to a same scan line. The TFT array substrate further is disposed with first through third data lines sequentially arranged along the first direction. The first through third data lines respectively are for driving the first through third sub-pixels. The first sub-pixel includes first and second areas, the second sub-pixel includes third and fourth areas, and the third sub-pixel includes fifth and sixth areas, arranged along a second direction. A voltage difference between a sub-pixel electrode in the sixth area and a common electrode is different from a voltage difference between a sub-pixel electrode in the fifth area and the common electrode.
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