VOLTAGE CONVERSION CIRCUIT AND LIQUID CRYSTAL DISPLAY DRIVING CHIP

    公开(公告)号:US20180219477A1

    公开(公告)日:2018-08-02

    申请号:US15125575

    申请日:2016-07-29

    CPC classification number: H02M3/073 G09G3/36 G09G2330/021 H02M3/07

    Abstract: The embodiment of the present disclosure provides a voltage conversion circuit including a voltage conversion module and a control module, the voltage conversion module includes a input terminal, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first switch to thirteenth switch and a output terminal, the input terminal is used to connect the input power, the control module is connected with the voltage conversion module, the voltage conversion module is used to convert the voltage of the input power to different magnifications output voltage and output from the output terminal when the first capacitor, the second capacitor, the third capacitor and the fourth capacitor are charging and discharging. Further, the embodiment of the present disclosure further provides a liquid crystal display driving chip applied the voltage conversion circuit. The voltage conversion circuit may achieve multi-magnification voltage output, and improve the conversion efficiency of the voltage.

    DRIVING METHOD FOR TOUCH DISPLAY DEVICE AND DRIVING SYSTEM OF THE SAME

    公开(公告)号:US20180046322A1

    公开(公告)日:2018-02-15

    申请号:US15294475

    申请日:2016-10-14

    CPC classification number: G06F3/0418 G06F3/0412 G06F3/044 G06F2203/04102

    Abstract: A driving method for a touch display device includes receiving a wake up signal and a display start signal; downloading an initialization code and a touch-control configuration code in order to finish a display initialization and touch operation initialization; and receiving display data and generating touch data being processed to finish a normal display and touch operation. A driving system is also disclosed, including a touch panel and an integrated driving chip used for driving the touch panel to perform a normal display and touch operation, wherein, the integrated driving chip for touching and displaying is configured to receive a wake up signal and a display start signal; download an initialization code and a touch-control configuration code in order to finish a display initialization and touch operation initialization; and receive display data and generating touch data being processed in order to finish the normal display and touch operation.

    DRIVING CONTROLLING METHOD OF LIQUID CRYSTAL PANEL PIXELS AND LIQUID CRYSTAL PANELS
    7.
    发明申请
    DRIVING CONTROLLING METHOD OF LIQUID CRYSTAL PANEL PIXELS AND LIQUID CRYSTAL PANELS 审中-公开
    液晶面板像素和液晶面板的驱动控制方法

    公开(公告)号:US20160372065A1

    公开(公告)日:2016-12-22

    申请号:US14646016

    申请日:2015-02-28

    Abstract: A driving controlling method of liquid crystal panel pixels and a liquid crystal panel are disclosed. The method includes: a charging period being configured for switching one frame of the liquid crystal panel, and at least one charging period comprises a high-voltage charging phase and a voltage correction phase. Voltage amplitude within the high-voltage charging phase is larger than a predetermined voltage amplitude such that the liquid crystal panel pixels accumulate an amount of electricity within a shorter time period. The voltage amplitude within the voltage correction phase equals to a default voltage such that the voltage is precisely configured to be the default voltage. In this way, the liquid crystal panel pixels may quickly reach a default voltage so as to enhance the display performance of the liquid crystal panel.

    Abstract translation: 公开了液晶面板像素和液晶面板的驱动控制方法。 该方法包括:充电周期被配置为切换液晶面板的一帧,并且至少一个充电周期包括高压充电阶段和电压校正阶段。 高电压充电阶段内的电压幅度大于预定的电压幅度,使得液晶面板像素在更短的时间周期内积累电量。 电压校正阶段内的电压幅度等于默认电压,使得电压被精确配置为默认电压。 以这种方式,液晶面板像素可以快速达到默认电压,从而提高液晶面板的显示性能。

    SOURCE DRIVE CIRCUIT, AND LIQUID CRYSTAL DISPLAY PANEL AND METHOD OF DRIVING THE SAME

    公开(公告)号:US20190012969A1

    公开(公告)日:2019-01-10

    申请号:US14897713

    申请日:2015-10-19

    Inventor: Feilin JI

    Abstract: A source drive circuit, a liquid crystal display panel and a method for driving the same are disclosed. The source drive circuit comprises a data temporary storage module used for generating a first driving signal based on a digital image signal; a digital to analog converting module used for performing digital to analog conversion on the first driving signal so as to obtain a first analog image signal; a buffering and amplifying module used for amplifying the first analog image signal so as to obtain a second analog image signal; and a screen cleaning module used for pulling down a signal output by the buffering and amplifying module according to a source selection signal, so that charge coupled with liquid crystal is released. In the source drive circuit, charge coupled with liquid crystal of the In-cell liquid crystal display panel when the panel is in a standby state due to touch detection scanning thereof can be effectively cleaned, and the case that the liquid crystal is polarized since it has a same polarity for a long time can be avoided.

    ELIMINATION METHOD OF PARASITIC CAPACITANCE AND DEVICE

    公开(公告)号:US20180173359A1

    公开(公告)日:2018-06-21

    申请号:US15300254

    申请日:2016-08-12

    Abstract: The disclosure discloses an elimination method of parasitic capacitance and a device. During a touch scanning period, inputting a first simulation signal to source electrode lines and inputting a second simulation signal to multiplex lines can eliminate parasitic capacitance. Waveforms of the first simulation signal and a touch scanning signal input in a common electrode are identical or similar, waveforms of the second simulation signal and the touch scanning signal input in the common electrode are similar, waveforms of the third simulation signal and the touch scanning signal input in the common electrode are similar, a second simulation waveform includes a first target high level, a second target high level, a first target low level and a second target low level that are generated by different modules, the first target high level>the second target high level>the first target low level>the second target low level.

    DRIVING METHOD, DRIVING DEVICE AND IN-CELL TOUCH SCREEN

    公开(公告)号:US20180158391A1

    公开(公告)日:2018-06-07

    申请号:US15118879

    申请日:2016-06-27

    Abstract: The present application discloses a driving method, a driving device and an in-cell touch screen, wherein the driving method including setting a first and a second Gamma value of the in-cell touch screen, wherein the first Gamma value is greater than the second Gamma value; dividing the display period of each frame into a display and a touch period; and if the touch operation detected by the in-cell touch screen meets the predetermined condition: in the display period, determining a first gray scale voltage based on the first Gamma value, and input the first gray scale voltage to a data signal line; in the touch period, determining a second gray scale voltage based on the second Gamma value, and input the second gray scale voltage to the data signal line of the in-cell touch screen to compensate for the brightness loss, and increase the uniformity and the visual experience.

Patent Agency Ranking