公开(公告)号：US20140043313A1

公开(公告)日：2014-02-13

申请号：US14058304

申请日：2013-10-21

Applicant: Novatek Microelectronics Corp.

Inventor： Chih-Jen Yen ,  Yueh-Hsiu Liu ,  Ju-Lin Huang ,  Peng-Yu Chen ,  Yu-Shao Liu

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3614 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2320/0673

Abstract: A gamma-voltage generator is provided to generating a plurality of first gamma voltages and second gamma voltages. At least one of the first gamma voltages generated by DACs of the gamma-voltage generator within a first frame period and at least one of the second gamma voltages generated by the DACs within a second frame period are outputted from a same one of the gamma buffers of the gamma-voltage generator, whereby the transmitted gamma voltages have substantially equal offset. Therefore, the display quality approaches an ideal condition.

Abstract translation: 提供伽马电压发生器以产生多个第一伽马电压和第二伽马电压。 在第一帧周期内由伽马电压发生器的DAC产生的第一伽马电压中的至少一个和由第二帧周期内的DAC产生的第二伽马电压中的至少一个从相同的一个伽马缓冲器输出 的γ电压发生器，由此所传输的伽马电压具有基本相等的偏移。 因此，显示质量接近理想状态。

公开(公告)号：US20130342109A1

公开(公告)日：2013-12-26

申请号：US13794811

申请日：2013-03-12

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Ju-Lin Huang ,  Yueh-Hsiu Liu

IPC: H05B37/02

CPC classification number: H05B37/02 ,  G09G3/20 ,  G09G2310/0291 ,  G09G2330/021 ,  G09G2330/045

Abstract: A driving circuit of flat display including a charging circuit path, a discharging circuit path, and a detecting circuit is provided. The charging circuit path has first and second impedance states, wherein an impedance value of the first impedance state is smaller than that of the second impedance state. The discharging circuit path has third and fourth impedance states, wherein an impedance value of the third impedance state is smaller than that of the fourth impedance state. The detecting circuit detects whether the charging circuit path or the discharging circuit path is in an unstable first state or stable second state, controls the charging circuit path to the first impedance state or the discharging circuit path to the third impedance state in the first state, and controls the charging circuit path to the second impedance state or the discharging circuit path to the fourth impedance state in the second state.

Abstract translation: 提供了包括充电电路路径，放电电路路径和检测电路的平面显示器的驱动电路。 充电电路具有第一和第二阻抗状态，其中第一阻抗状态的阻抗值小于第二阻抗状态的阻抗值。 放电电路具有第三和第四阻抗状态，其中第三阻抗状态的阻抗值小于第四阻抗状态的阻抗值。 检测电路检测充电电路路径或放电电路路径是否处于不稳定的第一状态或稳定的第二状态，在第一状态下将充电电路路径控制为第一阻抗状态或放电电路路径至第三阻抗状态， 并且在第二状态下将充电电路路径控制到第二阻抗状态或放电电路路径到第四阻抗状态。

公开(公告)号：US09013392B2

公开(公告)日：2015-04-21

申请号：US14058304

申请日：2013-10-21

Applicant: Novatek Microelectronics Corp.

Inventor： Chih-Jen Yen ,  Yueh-Hsiu Liu ,  Ju-Lin Huang ,  Peng-Yu Chen ,  Yu-Shao Liu

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3614 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2320/0673

Abstract: A gamma-voltage generator is provided to generating a plurality of first gamma voltages and second gamma voltages. At least one of the first gamma voltages generated by DACs of the gamma-voltage generator within a first frame period and at least one of the second gamma voltages generated by the DACs within a second frame period are outputted from a same one of the gamma buffers of the gamma-voltage generator, whereby the transmitted gamma voltages have substantially equal offset. Therefore, the display quality approaches an ideal condition.

Abstract translation: 提供伽马电压发生器以产生多个第一伽马电压和第二伽马电压。 在第一帧周期内由伽马电压发生器的DAC产生的第一伽马电压中的至少一个和由第二帧周期内的DAC产生的第二伽马电压中的至少一个从相同的一个伽马缓冲器输出 的γ电压发生器，由此所传输的伽马电压具有基本相等的偏移。 因此，显示质量接近理想状态。

公开(公告)号：US20140022233A1

公开(公告)日：2014-01-23

申请号：US14042739

申请日：2013-10-01

Applicant: NOVATEK Microelectronics Corp.

Inventor： Tung-Shuan Cheng ,  Yueh-Hsiu Liu ,  Kai-Shu Han

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3674 ,  G09G3/3685 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/02 ,  G09G2330/06

Abstract: A driving device of a liquid crystal display (LCD) utilized for preventing noises of a clock signal from causing error operation of a shift register is disclosed. The driving device includes a shift register, a reception terminal, a noise elimination circuit and a control signal generation circuit. The reception terminal is utilized for receiving a first clock signal. The noise elimination circuit is coupled to the reception terminal, and is utilized for eliminating noises of the first clock signal and delaying the first clock signal for a preset time to generate a second clock signal. The control signal generation circuit is coupled to the reception terminal, the noise elimination circuit and the shift register, and is utilized for generating a first control signal and a second control signal to control the shift register.

Abstract translation: 公开了一种用于防止时钟信号的噪声引起移位寄存器的错误操作的液晶显示器（LCD）的驱动装置。 驱动装置包括移位寄存器，接收端子，噪声消除电路和控制信号生成电路。 接收终端用于接收第一时钟信号。 噪声消除电路耦合到接收终端，并且用于消除第一时钟信号的噪声并且延迟第一时钟信号达预设时间以产生第二时钟信号。 控制信号产生电路耦合到接收终端，噪声消除电路和移位寄存器，并用于产生第一控制信号和第二控制信号以控制移位寄存器。

公开(公告)号：US20140002437A1

公开(公告)日：2014-01-02

申请号：US13751159

申请日：2013-01-28

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Keko-Chun Liang ,  Yueh-Hsiu Liu

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3611 ,  G09G2320/0223 ,  G09G2330/021

Abstract: A power-saving driving circuit for a flat panel display is provided. The power-saving driving circuit includes a pixel array and at least one source driver. The pixel array composes as a plurality of data lines. The data lines are grouped into a plurality of pixel regions according to a scan time. Each of the pixel regions has a plurality of pixels. The source driver sequentially supplies a driving voltage to the pixels on at least one of the data lines. The driving voltage supplied by the source driver to each of the pixel regions has a varying driving capability, and the driving capability gets stronger as it gets closer to an end of the data lines.

Abstract translation: 提供了一种用于平板显示器的省电驱动电路。 省电驱动电路包括像素阵列和至少一个源极驱动器。 像素阵列组成多条数据线。 根据扫描时间将数据线分组成多个像素区域。 每个像素区域具有多个像素。 源极驱动器依次向至少一条数据线上的像素提供驱动电压。 由源极驱动器提供给每个像素区域的驱动电压具有变化的驱动能力，并且随着其越接近数据线的端部，驱动能力变得越来越强。

公开(公告)号：US09875700B2

公开(公告)日：2018-01-23

申请号：US14242859

申请日：2014-04-01

Applicant: NOVATEK Microelectronics Corp.

Inventor： Yueh-Hsun Tsai ,  Yi-Chuan Liu ,  Yueh-Hsiu Liu

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0297

Abstract: A source driver utilized for a display device and switching between two operational modes includes a reception module for receiving a plurality of display information and a plurality of transmission channels. Each transmission channel includes a register module for receiving one of the plurality of display information; a voltage level transformer for determining a voltage level of the one of display information; a polarization digital-to-analog converter for processing a digital-to-analog operation for the voltage level of the one display information; and an output module for outputting a plurality of voltage levels of the display information. The voltage levels of every two adjacent transmission channels include different polarization of voltage levels, and the output module processes an odd-number switching operation before outputting the plurality of voltage levels.

公开(公告)号：US20150116193A1

公开(公告)日：2015-04-30

申请号：US14242859

申请日：2014-04-01

Applicant: NOVATEK Microelectronics Corp.

Inventor： Yueh-Hsun Tsai ,  Yi-Chuan Liu ,  Yueh-Hsiu Liu

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0297

Abstract: A source driver utilized for a display device and switching between two operational modes includes a reception module for receiving a plurality of display information and a plurality of transmission channels. Each transmission channel includes a register module for receiving one of the plurality of display information; a voltage level transformer for determining a voltage level of the one of display information; a polarization digital-to-analog converter for processing a digital-to-analog operation for the voltage level of the one display information; and an output module for outputting a plurality of voltage levels of the display information. The voltage levels of every two adjacent transmission channels include different polarization of voltage levels, and the output module processes an odd-number switching operation before outputting the plurality of voltage levels.

Abstract translation: 用于显示设备的源驱动器和在两种操作模式之间切换的源驱动器包括用于接收多个显示信息和多个传输通道的接收模块。 每个传输信道包括用于接收多个显示信息之一的寄存器模块; 用于确定显示信息之一的电压电平的电压电平变换器; 极化数模转换器，用于处理一个显示信息的电压电平的数模转换操作; 以及用于输出显示信息的多个电压电平的输出模块。 每两个相邻传输通道的电压电平包括电压电平的不同极化，并且在输出多个电压电平之前，输出模块处理奇数开关操作。

公开(公告)号：US08912828B2

公开(公告)日：2014-12-16

申请号：US13794811

申请日：2013-03-12

Applicant: Novatek Microelectronics Corp.

Inventor： Ju-Lin Huang ,  Yueh-Hsiu Liu

IPC: H03B1/00 ,  H05B37/02 ,  G09G3/20

CPC classification number: H05B37/02 ,  G09G3/20 ,  G09G2310/0291 ,  G09G2330/021 ,  G09G2330/045

Abstract: A driving circuit of flat display including a charging circuit path, a discharging circuit path, and a detecting circuit is provided. The charging circuit path has first and second impedance states, wherein an impedance value of the first impedance state is smaller than that of the second impedance state. The discharging circuit path has third and fourth impedance states, wherein an impedance value of the third impedance state is smaller than that of the fourth impedance state. The detecting circuit detects whether the charging circuit path or the discharging circuit path is in an unstable first state or stable second state, controls the charging circuit path to the first impedance state or the discharging circuit path to the third impedance state in the first state, and controls the charging circuit path to the second impedance state or the discharging circuit path to the fourth impedance state in the second state.

Abstract translation: 提供了包括充电电路路径，放电电路路径和检测电路的平面显示器的驱动电路。 充电电路具有第一和第二阻抗状态，其中第一阻抗状态的阻抗值小于第二阻抗状态的阻抗值。 放电电路具有第三和第四阻抗状态，其中第三阻抗状态的阻抗值小于第四阻抗状态的阻抗值。 检测电路检测充电电路路径或放电电路路径是否处于不稳定的第一状态或稳定的第二状态，在第一状态下将充电电路路径控制为第一阻抗状态或放电电路路径至第三阻抗状态， 并且在第二状态下将充电电路路径控制到第二阻抗状态或放电电路路径到第四阻抗状态。

公开(公告)号：US08773346B2

公开(公告)日：2014-07-08

申请号：US14042739

申请日：2013-10-01

Applicant: NOVATEK Microelectronics Corp.

Inventor： Tung-Shuan Cheng ,  Yueh-Hsiu Liu ,  Kai-Shu Han

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3674 ,  G09G3/3685 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/02 ,  G09G2330/06

Abstract: A driving device of a liquid crystal display (LCD) utilized for preventing noises of a clock signal from causing error operation of a shift register is disclosed. The driving device includes a shift register, a reception terminal, a noise elimination circuit and a control signal generation circuit. The reception terminal is utilized for receiving a first clock signal. The noise elimination circuit is coupled to the reception terminal, and is utilized for eliminating noises of the first clock signal and delaying the first clock signal for a preset time to generate a second clock signal. The control signal generation circuit is coupled to the reception terminal, the noise elimination circuit and the shift register, and is utilized for generating a first control signal and a second control signal to control the shift register.

Abstract translation: 公开了一种用于防止时钟信号的噪声引起移位寄存器的错误操作的液晶显示器（LCD）的驱动装置。 驱动装置包括移位寄存器，接收端子，噪声消除电路和控制信号生成电路。 接收终端用于接收第一时钟信号。 噪声消除电路耦合到接收终端，并且用于消除第一时钟信号的噪声并且延迟第一时钟信号达预设时间以产生第二时钟信号。 控制信号产生电路耦合到接收终端，噪声消除电路和移位寄存器，并用于产生第一控制信号和第二控制信号以控制移位寄存器。