公开(公告)号：US20140253240A1

公开(公告)日：2014-09-11

申请号：US14053616

申请日：2013-10-15

Applicant: Novatek Microelectronics Corp.

Inventor： Kuo-Che Hong ,  Ji-Ting Chen

IPC: H03F3/16

CPC classification number: H03F3/16 ,  H03F3/4521

Abstract: A circuit of an operational amplifier includes an operational main circuit, a plurality of current sources, and at least one clamp circuit. The current sources are configured to connect the operational main circuit to a high voltage source or a ground voltage source. The clamp circuit is connected between the operational main circuit and at least one of the current sources. Here, a transistor device connected to the clamp circuit has a crossing-voltage endurance level which is lower than a preset crossing-voltage endurance level of the operational main circuit.

Abstract translation: 运算放大器的电路包括操作主电路，多个电流源和至少一个钳位电路。 电流源被配置为将操作主电路连接到高电压源或地电压源。 钳位电路连接在操作主电路和至少一个电流源之间。 这里，连接到钳位电路的晶体管器件的交叉电压耐受水平低于操作主电路的预设交叉耐压水平。

公开(公告)号：US09299310B2

公开(公告)日：2016-03-29

申请号：US13753530

申请日：2013-01-30

Applicant: Novatek Microelectronics Corp.

Inventor： Kuo-Che Hong ,  Ji-Ting Chen

IPC: G09G5/00 ,  G09G3/36

CPC classification number: G09G5/00 ,  G09G3/3614 ,  G09G3/3688 ,  G09G2310/0248 ,  G09G2310/0297 ,  G09G2330/023

Abstract: A load driving apparatus including a first driving unit, a second driving unit, and a circuit switch module is disclosed. The first and the second driving unit are respectively disposed at a first driving channel and a second driving channel and respectively output a first driving signal and a second driving signal for driving a first load and a second load during a channel output period. The circuit switch module is coupled between the first and the second driving channel and includes a plurality of signal transmitting paths. During a data loading period and a charge sharing period, the circuit switch module turns on all the signal transmitting paths, so that a charge sharing effect between the first load and the second load is achieved during the charge sharing period and accordingly the power consumption is reduced. Additionally, a load driving method of the load driving apparatus is disclosed.

Abstract translation: 公开了一种包括第一驱动单元，第二驱动单元和电路开关模块的负载驱动装置。 第一驱动单元和第二驱动单元分别设置在第一驱动通道和第二驱动通道处，并且在通道输出期间分别输出用于驱动第一负载和第二负载的第一驱动信号和第二驱动信号。 电路开关模块耦合在第一和第二驱动通道之间并且包括多个信号传输路径。 在数据加载期间和电荷共享期间，电路开关模块接通所有信号发送路径，从而在电荷共享期间实现第一负载和第二负载之间的电荷共享效应，因此功耗为 减少 此外，公开了一种负载驱动装置的负载驱动方法。

公开(公告)号：US20160078837A1

公开(公告)日：2016-03-17

申请号：US14558733

申请日：2014-12-03

Applicant: Novatek Microelectronics Corp.

Inventor： Kuo-Che Hong ,  Ji-Ting Chen

IPC: G09G3/36 ,  G09G3/20

CPC classification number: G09G3/3696 ,  G09G3/2007 ,  G09G3/3648 ,  G09G3/3688 ,  G09G2300/0828 ,  G09G2310/0291 ,  G09G2320/0673 ,  G09G2330/021

Abstract: A source driver, an operation method thereof and a driving circuit using the same are provided. The source driver includes a gamma voltage generating circuit, a first voltage buffer and a reference voltage driving circuit. The gamma voltage generating circuit receives an inter reference voltage to provide a first gray level reference voltage corresponding to a first display gray level. The first voltage buffer is used for receiving the first gray level reference voltage to provide a driving voltage. The reference voltage driving circuit is coupled to the gamma voltage generating circuit and the first voltage buffer and used for accelerating rising speed or falling speed of the first gray level reference voltage.

Abstract translation: 提供了源极驱动器，其操作方法和使用该驱动器的驱动电路。 源极驱动器包括伽马电压发生电路，第一电压缓冲器和参考电压驱动电路。 伽马电压发生电路接收中间参考电压以提供对应于第一显示灰度级的第一灰度级参考电压。 第一电压缓冲器用于接收第一灰度级参考电压以提供驱动电压。 参考电压驱动电路耦合到伽马电压产生电路和第一电压缓冲器，用于加速第一灰度级参考电压的上升速度或下降速度。

公开(公告)号：US09166535B2

公开(公告)日：2015-10-20

申请号：US14053616

申请日：2013-10-15

Applicant: Novatek Microelectronics Corp.

Inventor： Kuo-Che Hong ,  Ji-Ting Chen

IPC: H03F3/45 ,  H03F3/16

CPC classification number: H03F3/16 ,  H03F3/4521

Abstract: A circuit of an operational amplifier includes an operational main circuit, a plurality of current sources, and at least one clamp circuit. The current sources are configured to connect the operational main circuit to a high voltage source or a ground voltage source. The clamp circuit is connected between the operational main circuit and at least one of the current sources. Here, a transistor device connected to the clamp circuit has a crossing-voltage endurance level which is lower than a preset crossing-voltage endurance level of the operational main circuit.

Abstract translation: 运算放大器的电路包括操作主电路，多个电流源和至少一个钳位电路。 电流源被配置为将操作主电路连接到高电压源或地电压源。 钳位电路连接在操作主电路和至少一个电流源之间。 这里，连接到钳位电路的晶体管器件的交叉电压耐受水平低于操作主电路的预设交叉耐压水平。