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公开(公告)号：US10249252B2
公开(公告)日：2019-04-02
申请号：US15303744
申请日：2016-07-19
Inventor： Xiaoyu Huang , Dongsheng Guo
IPC: G09G3/36 , G02F1/1343 , G02F1/1362 , G09G5/06
Abstract: The present disclosure provides a color cast compensation method, which includes: obtaining a first gray value of a first pixel electrode currently to be charged; determining a second gray value of a second pixel electrode on a previous row sharing a same data line with the first pixel electrode; and obtaining a target charging voltage of the first pixel electrode based on the first gray value and the second gray value. The present invention solves the problem of display quality affected by rough fonts, caused by jaggies appearing on a triple-gate type display panel.
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公开(公告)号：US09940882B2
公开(公告)日：2018-04-10
申请号：US14417160
申请日：2014-11-04
Inventor： Jiang Zhu , Yu Yeh Chen , Dongsheng Guo
CPC classification number: G09G3/3607 , G09G3/3696 , G09G2300/0408 , G09G2300/0426 , G09G2310/0291 , G09G2310/0297 , G09G2320/0673
Abstract: In the technical field of display, a source driver circuit and a display device according to the present disclosure, which can effectively reduce the heat generating efficiency of a gamma driver circuit cooperating with the source driver circuit, lower the temperature of the gamma driver circuit, and facilitate the integration of the gamma driver circuit with other driver circuits, are provided. The source driver circuit is in connection with several pixel gray scale reference voltages from the gamma driver circuit, and comprises several operational amplifiers, the number of which equals to that of the pixel gray scale reference voltages outputted from the gamma driver circuit, and the operational amplifiers each are connected with a corresponding pixel gray scale reference voltage.
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公开(公告)号：US09898994B1
公开(公告)日：2018-02-20
申请号：US15032550
申请日：2016-02-03
Inventor： Dongsheng Guo , Mingliang Wang
IPC: G09G3/36
CPC classification number: G09G3/3696 , G09G3/36 , G09G3/3688 , G09G2310/08 , G09G2320/041 , G09G2330/021
Abstract: The present invention provides a voltage generation circuit, comprising a control unit, a controlled unit and an output unit, and the control unit receives a trigger signal to generate a control signal having a preset delay, and the control unit is further coupled to the controlled unit to control the controlled unit to be in a first state in a duration of the preset delay and to be in a second state in a duration of a non-preset delay, and the output unit outputs a first drive voltage to the drive unit as the controlled unit is in the first state and to output a second drive voltage to the drive unit as the controlled unit is in the second state, and the first drive voltage is smaller than the second drive voltage to achieve decreasing the drive voltage to lower power consumption of the data drive chip.
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公开(公告)号：US09805636B2
公开(公告)日：2017-10-31
申请号：US14443641
申请日：2015-03-20
Inventor： Yu-yeh Chen , Dongsheng Guo , Jiang Zhu , Lei Sun , Li-wei Chu , Jhen-wei He
CPC classification number: G09G3/2003 , G09G3/2007 , G09G3/3607 , G09G3/3611 , G09G2300/0452 , G09G2310/08 , G09G2320/0242 , G09G2320/0646 , G09G2320/0666
Abstract: The present invention provides a drive method and a drive device of a liquid crystal display, and the drive method comprises: receiving an image to display; selecting one color washout compensation mode from several different color washout compensation modes according to the user selection or the display mode, and implementing color washout compensation to the image to display; driving the liquid crystal panel to show the image to display after the color washout compensation. With the aforesaid arrangement, the present invention can reduce the color washout under large view angle to promote the display effect of the large view angle.
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公开(公告)号：US09799281B2
公开(公告)日：2017-10-24
申请号：US14653848
申请日：2015-05-18
Inventor： Shui-chih Lien , Yu-yeh Chen , Jiang Zhu , Lei Sun , Dongsheng Guo
CPC classification number: G09G3/3607 , G09G3/2003 , G09G3/3648 , G09G2300/0447 , G09G2300/0452 , G09G2320/028 , G09G2320/0673
Abstract: A liquid crystal panel and a driving method are disclosed. The method includes the following steps: receiving a picture information; analyzing and obtaining an original grayscale of each color of multiple pixel units; generating a first display grayscale and a second display grayscale according to the original grayscale of each color, wherein, a display brightness corresponding to the first display grayscale is greater than a display brightness corresponding to the second display grayscale; and using the first display grayscale and the second display grayscale of each color of the multiple pixel units to drive sub-pixel units which is corresponding to the each color in two adjacent pixel units corresponding to each pixel unit to respectively perform a dark display and a bright display. Through above way, the present invention can increase the transmittance of the liquid crystal panel.
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Patent Agency Ranking
公开(公告)号：US09715847B2
公开(公告)日：2017-07-25
申请号：US14443976
申请日：2015-03-20
Inventor： Yu-yeh Chen , Dongsheng Guo , Jiang Zhu , Lei Sun , Li-wei Chu , Jhen-wei He
CPC classification number: G09G3/2003 , G02F1/137 , G02F2203/30 , G09G3/2018 , G09G3/36 , G09G3/3611 , G09G2300/0447 , G09G2300/0452 , G09G2310/08 , G09G2320/0646 , G09G2320/0666 , G09G2340/06
Abstract: The present invention provides a drive method and a drive device of a liquid crystal display, and the drive method comprises: receiving an image to display; implementing block detection to the image pixels of the image to display to determine dimensions of color blocks where the image pixels are; respectively setting block weights for the respective image pixels according to the dimensions of the color blocks; implementing the color washout compensation to the image to display according to the block weight; driving the liquid crystal panel to show the image to display after the color washout compensation. With the aforesaid arrangement, the present invention can reduce the color washout under large view angle to promote the display effect of the large view angle.
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公开(公告)号：US09696570B2
公开(公告)日：2017-07-04
申请号：US14901038
申请日：2015-04-03
Inventor： Zhaolin Fang , Dongsheng Guo
IPC: H03B1/00 , H03K3/00 , G02F1/133 , G05F3/16 , G02F1/1368
CPC classification number: G02F1/13306 , G02F1/133 , G02F1/1368 , G05F3/16 , G09G3/20 , G09G3/36 , G09G3/3655
Abstract: Disclosed are a VCOM generation circuit and a liquid crystal display. The VCOM generation circuit has a voltage divider circuit coupled between a power source input end of the VCOM generation circuit and a ground, and a voltage output end; an operational amplifier output circuit, and one input end is coupled to the voltage output end of the voltage divider circuit, and an output end is a VCOM input end of a liquid crystal display, employed for outputting a liquid crystal drive reference voltage VCOM as the liquid crystal display functions to charge a liquid crystal layer; a delay circuit, coupled between the one input end of the operational amplifier output circuit and the ground, and employed for delaying a change rate of the VCOM as the operational amplifier output circuit outputs the VCOM.
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公开(公告)号：US09275600B2
公开(公告)日：2016-03-01
申请号：US14357214
申请日：2014-03-27
Inventor： Jiang Zhu , Dongsheng Guo
IPC: G09G3/36
CPC classification number: G09G3/3696 , G09G3/3614 , G09G3/3688 , G09G2310/027 , G09G2320/0276 , G09G2320/0673
Abstract: The present invention discloses a source electrode driving module for providing a data signal to an LCD unit, comprising: a Gamma correction chip and a source electrode driving chip, wherein, the Gamma correction chip comprises a P-GAMMA driving chip with three to eight output channels; the P-GAMMA driving chip is used for generating multiple control voltages providing to the source electrode driving chip; the source electrode driving chip comprises a first resistor string and a second resistor string; the multiple control voltages generated by the P-GAMMA driving chip connect into the first resistor string and the second resistor string according to turning points of a Gamma curve of the LCD unit, wherein, n is an integer, and 6≦n≦10. The present also disclose an LCD panel including the source electrode driving module described above.
Abstract translation: 本发明公开了一种用于向LCD单元提供数据信号的源电极驱动模块，包括：伽马校正芯片和源电极驱动芯片，其中，伽马校正芯片包括具有三到八个输出的P-GAMMA驱动芯片 渠道; P-GAMMA驱动芯片用于产生提供给源极驱动芯片的多个控制电压; 源电极驱动芯片包括第一电阻串和第二电阻串; 由P-GAMMA驱动芯片产生的多个控制电压根据LCD单元的伽马曲线的转折点连接到第一电阻串和第二电阻串中，其中n为整数，6＆nlE; n＆nlE; 10。 本发明还公开了一种包括上述源电极驱动模块的LCD面板。
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公开(公告)号：US20140354934A1
公开(公告)日：2014-12-04
申请号：US14001504
申请日：2013-06-28
Inventor： Xiaoyu Huang , Dongsheng Guo
IPC: G02F1/1362 , G02F1/1333
CPC classification number: G02F1/13452
Abstract: A display device includes a display panel, a fan out area arranged at an edge of the display panel, a plurality of gate chip on films (G-COFs) are bonded on the edge of the display panel. The plurality of G-COFs are electrically connected with each other through the transmission circuit line, and at least one part of the transmission circuit line among the G-COFs is arranged on an external circuit board of the display panel.
Abstract translation: 显示装置包括显示面板，布置在显示面板的边缘处的扇出区域，多个膜片上的栅极芯片（G-COF）接合在显示面板的边缘上。 多个G-COF通过传输电路线彼此电连接，并且G-COF中的传输电路线的至少一部分布置在显示面板的外部电路板上。
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公开(公告)号：US10510282B2
公开(公告)日：2019-12-17
申请号：US15822148
申请日：2017-11-25
Inventor： Yu-Yeh Chen , Dongsheng Guo , Jiang Zhu , Lei Sun , Li-wei Chu , Jhen-wei He
Abstract: A drive method is provided for driving a liquid crystal display and includes receiving an image to be displayed, which includes multiple image pixels; setting different weights for primary color components of each of multiple image pixels of the image; implementing color washout compensation to the image according to the weights set for the primary color components of each of the multiple image pixels by varying brightness levels of the primary color components of each of the image pixels of the image; and driving the liquid crystal display to display the image so compensated.
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