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1.发明申请公开(公告)号：US20170262119A1
公开(公告)日：2017-09-14
申请号：US15275456
申请日：2016-09-25
Inventor： Chunpeng GUO , Yingqi WANG , Chun-hung HUANG
IPC: G06F3/041
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/044 , G09G3/20 , G09G2310/0297
Abstract: Provided are a touch control device drive method, a touch control device drive circuit and a touch control device. The method comprises: providing a plurality of touch control drive signals for detecting a position where a touch point of the touch control device is; providing a plurality of periodic scan signals, and in one period, the scan signal comprises a first high voltage level signal, of which a duration is a first preset time, and the first high voltage level signals of the two adjacent scan signals are spaced with a first time interval; providing a plurality of switch signals, wherein each switch signal comprises a first, a second and a third switch sub signals, and the first, the second and the third switch sub signals are respectively employed to control on or off of a first, a second and a third thin film transistors in one pixel.
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公开(公告)号：US20170140720A1
公开(公告)日：2017-05-18
申请号：US14651337
申请日：2015-05-13
Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD. , WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Inventor： Chunpeng GUO , Jiehui QIN , Zhenzhou XING
IPC: G09G3/36 , G02F1/1368
CPC classification number: G09G3/3614 , G02F1/1368 , G09G3/3688 , G09G3/3696 , G09G2310/027 , G09G2310/0286 , G09G2310/0289 , G09G2310/0291 , G09G2310/08 , G09G2320/0276
Abstract: A source drive including a bidirectional shift register and a plurality of data channels, each of which includes a data register and a DAC, and connected to the bidirectional shift register and a TFT, is provided, and so is an LCD device. The DAC is shared by two adjacent data channels, for reversing a polarity of a reference voltage according to a line reverse signal which is received from a timing controller, so as to determine the polarities of output voltages of the two adjacent data channels. The source drive has a small size and the cost thereof is low.
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公开(公告)号：US20210225318A1
公开(公告)日：2021-07-22
申请号：US16302260
申请日：2018-08-22
Inventor： Chunpeng GUO
Abstract: A method for eliminating residual image in a liquid crystal display panel is provided. The method includes steps as follows. A reference common voltage output by a common voltage generation circuit is shifted to eliminate a residual image. The reference common voltage is maintained, a first reference voltage bound of a gamma correction unit of the liquid crystal display panel is adjusted, so that a residual image is eliminated. The adjustment of remaining grayscales is completed in sequence.
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公开(公告)号：US20180217705A1
公开(公告)日：2018-08-02
申请号：US15127459
申请日：2016-08-17
Inventor： Zhenzhou XING , Chunpeng GUO , Man LI
IPC: G06F3/041 , G02F1/1333 , G02F1/1362 , H01L27/12
CPC classification number: G06F3/0412 , G02F1/13338 , G02F1/136213 , G02F1/136286 , G06F3/0416 , G06F3/0418 , G09G3/3648 , G09G2320/0219 , G09G2320/0233 , G09G2320/0295 , G09G2320/0626 , G09G2354/00 , H01L27/124
Abstract: A touch display device and an improvement method to a touch display device are disclosed. The improvement method first determines whether the touch display device turns on the touch mode. If yes, image data input to the touch display device is obtained and feature data is extracted from the image data. Then, adjustment or compensation factors are obtained according to the feature data. Grey level compensation sequence is also obtained. The duty cycle of the control signal for the touch display device is adjusted according to the factors and the grey level compensation sequence, so as to improve the display difference for a same grey level image due to the turning on of the touch mode.
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公开(公告)号：US20190304351A1
公开(公告)日：2019-10-03
申请号：US16152871
申请日：2018-10-05
Inventor： Zike ZHENG , Lulu XIE , Chunpeng GUO
IPC: G09G3/20
Abstract: The present invention teaches a signal processing method and a signal processing device for simplifying TCON. The method includes the steps of: receiving a low voltage differential signaling (LVDS) signal and decoding the LVDS signal to obtain TCON signal width, period, and look-up table. The LVDS signal includes a clock signal and five data signals. TCON parameters are encoded in the empty differential pairs in the first bits of the last two data signals within continuous cycles. The TCON parameters include TCON signal width, period, and look-up table. By the present invention, TCON obtains TCON parameters from LVDS in a same sequence as they are stored in prior art's EEPROM. TCON resource is as such saved, and an external EEPROM may be omitted for lower production cost, under identical operation condition.
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Patent Agency Ranking
公开(公告)号：US20180204501A1
公开(公告)日：2018-07-19
申请号：US15119662
申请日：2016-07-11
Inventor： Chunpeng GUO , Xingling GUO
IPC: G09G3/20
CPC classification number: G09G3/2085 , G02F1/00 , G09G3/20 , G09G2310/0278
Abstract: The present disclosure discloses a display driving circuit, a display screen and a terminal device. The display driving circuit comprises a driving IC, multiple scanning lines and multiple data lines; one kind of the scanning line and the data line is annular arrangement; the other kind of the scanning line and the data line is radial arrangement; the driving IC is connected to the scanning lines and the data lines. The present invention can be better adapted to circular, round or elliptical display panel.
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7.发明申请公开(公告)号：US20180197490A1
公开(公告)日：2018-07-12
申请号：US15117442
申请日：2016-07-11
Inventor： Chunpeng GUO , Gonghua ZOU
IPC: G09G3/36
CPC classification number: G09G3/3607 , G09G3/36 , G09G3/3611 , G09G2320/0233 , G09G2320/0276 , G09G2320/0673 , G09G2320/0686
Abstract: The present application discloses a method of driving a liquid crystal display apparatus and a liquid crystal display apparatus, the driving method includes: obtaining at least two Gamma values of the corresponding display areas of the liquid crystal display apparatus respectively, wherein the at least two Gamma values of the corresponding display areas respectively are not the same, and the conditions of the backlight of the at least two display areas is different; and determining the driving voltage of the pixels in the at least two display areas according to the corresponding Gamma values respectively of the at least two display areas and the gray scale values to be displayed of the at least two display areas. It can effectively improve the uneven display image problem of the liquid crystal display apparatus caused by the light emitted from the backlight, and raise the performance of the liquid crystal display apparatus.
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公开(公告)号：US20180039359A1
公开(公告)日：2018-02-08
申请号：US14914660
申请日：2016-02-25
Inventor： Chunpeng GUO , Chun-hung Huang , Ying-chi WANG
CPC classification number: G06F3/0412 , G06F3/041 , G06F3/0416 , G06F3/044 , G09G3/3648 , G09G3/3688 , G09G2310/06 , G09G2320/0252 , G09G2330/021 , G09G2354/00
Abstract: A driving method for a liquid crystal panel is disclosed. Wherein, the driving method includes: (A) at a moment of switching from a normal display time stage to a touch scanning time stage in a current frame, applying a first over driving voltage to a common electrode of each pixel of a liquid crystal panel; and (B) at a moment of switching from the touch scanning time stage in the current frame to a normal display time stage of a next frame, applying a second over driving voltage to the common electrode of each pixel. According to the method described above a time that the common electrode reaches a present level voltage is shorten in order to effectively improve the poor display and touch problem caused by signal abnormality at moments of switching between a normal display and a touch scanning in an in-cell touch panel.
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公开(公告)号：US20170236465A1
公开(公告)日：2017-08-17
申请号：US14905789
申请日：2015-09-09
Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd. , Wuhan China Star Optoelectronics Technology Co., Ltd.
Inventor： Gonghua ZOU , Chang CAO , Chunpeng GUO
IPC: G09G3/20
CPC classification number: G09G3/2074 , G09G3/2003 , G09G3/2092 , G09G3/3685 , G09G2300/0452 , G09G2310/0297
Abstract: The present invention discloses a driving circuit according to RGBW and a flat panel display. In the driving circuit: control terminals of a first and second voltage-level switches and a first non-voltage-level switch are connected to a first driving line, input terminals are connected to a driving signal source, output terminals are respectively connected to input terminals of a third non-voltage-level switch, a third and fourth voltage-level switches, control terminals of the third non-voltage-level switch and the third and fourth voltage-level switches are connected to a second driving line, output terminals of the third non-voltage-level switch and the third and fourth voltage-level switches are connected to a first to third sub-pixels. The circuit can implement that a size occupied by the driving lines is decreased and the aperture ratio of the display is increased.
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公开(公告)号：US20210325709A1
公开(公告)日：2021-10-21
申请号：US16615354
申请日：2019-11-06
Inventor： Chunpeng GUO , Gonghua ZOU
IPC: G02F1/133 , G02F1/1345 , G02F1/1333
Abstract: A narrow-bezel display panel includes a display region, a lower border, a driving chip, and a flexible circuit board. The lower border is connected to the display region. The driving chip is placed in the lower border. The flexible circuit board is arranged in the lower border and electrically connected to the driving chip. The driving chip is provided with an accommodating region toward the flexible circuit board, and the accommodating region receives one end of the flexible circuit board. Accordingly, a size of the lower border of the display panel is reduced.
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