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公开(公告)号：US20140009373A1
公开(公告)日：2014-01-09
申请号：US13736091
申请日：2013-01-08
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Jhih-Siou Cheng , Ju-Lin Huang , Pang-Chan Hung
IPC: G09G3/36
CPC classification number: G09G3/36 , G09G3/3685 , G09G2310/027
Abstract: A digital to analog converter for a source driver chip of a liquid crystal display device is disclosed. The digital to analog converter comprises an output terminal for outputting an output voltage, a plurality of receiving terminals for receiving a plurality of Gamma voltages, and a plurality of transmission paths comprising a plurality of first-type transistors coupled between the plurality of receiving terminals and the output terminal, respectively, for outputting one of the plurality of Gamma voltages as the output voltage according to a digital select signal; wherein a first transmission path corresponding to a first receiving terminal receiving a first Gamma voltage closest to a middle voltage among the plurality of Gamma voltages has lower on-resistance than other transmission paths among the plurality of transmission paths when a same source-to-gate voltage is applied.
Abstract translation: 公开了一种用于液晶显示装置的源极驱动器芯片的数模转换器。 数模转换器包括用于输出输出电压的输出端子，用于接收多个伽马电压的多个接收端子以及耦合在多个接收端子之间的多个第一型晶体管的多个传输路径，以及多个传输路径 输出端子，用于根据数字选择信号输出多个伽马电压中的一个作为输出电压; 其中对应于接收第一接收端的第一传输路径，当多个伽马电压中的最接近中间电压的第一伽马电压具有相同的源极到栅极之间的多个传输路径中的其它传输路径的导通电阻较低 施加电压。
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Patent Agency Ranking
公开(公告)号：US20150381197A1
公开(公告)日：2015-12-31
申请号：US14845289
申请日：2015-09-04
Applicant: Novatek Microelectronics Corp.
Inventor： Jhih-Siou Cheng , Ju-Lin Huang , Pang-Chan Hung
CPC classification number: H03M1/76 , G09G3/2007 , G09G3/3291 , G09G3/3696 , G09G5/02 , G09G2310/027 , G09G2320/0276 , G09G2330/028 , H03K3/01 , H03M1/66 , H03M1/765
Abstract: A digital to analog converter is disclosed. The invention provides a digital to analog converter (DAC) including a plurality of voltage transmitting switches and a selecting signal decoder. The voltage transmitting switches respectively receive a plurality of input voltages, and output terminals of the voltage transmitting switches are commonly coupled to an output terminal of the digital to analog converter. The selecting signal decoder receives a plurality of selecting signals, and generates a plurality of transmitting enable signals to control the voltage transmitting switches. Wherein only one of the voltage transmitting switches is connected between each of the input voltages and the output terminal of the digital to analog converter.
Abstract translation: 公开了一种数模转换器。 本发明提供一种包括多个电压发射开关和选择信号解码器的数模转换器（DAC）。 电压发送开关分别接收多个输入电压，电压发送开关的输出端子共同耦合到数模转换器的输出端子。 选择信号解码器接收多个选择信号，并且产生多个发送使能信号以控制电压发送开关。 其中只有一个电压发射开关连接在每个输入电压和数模转换器的输出端之间。
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公开(公告)号：US09172390B2
公开(公告)日：2015-10-27
申请号：US13740282
申请日：2013-01-14
Applicant: Novatek Microelectronics Corp.
Inventor： Jhih-Siou Cheng , Ju-Lin Huang , Pang-Chan Hung
CPC classification number: H03M1/76 , G09G3/2007 , G09G3/3291 , G09G3/3696 , G09G5/02 , G09G2310/027 , G09G2320/0276 , G09G2330/028 , H03K3/01 , H03M1/66 , H03M1/765
Abstract: A digital to analog converter is disclosed. The digital to analog converter includes a voltage selector, M voltage transmitting switches and a selecting signal decoder. The voltage selector receives N first voltages among a plurality of analog input voltages, and receives a plurality of digital selecting signals. The voltage selector selects at most one of the first voltages for providing to an output terminal. One terminals of the voltage transmitting switches receives M second voltages among the input voltages respectively, and the voltage transmitting switches are turned on or off according to M transmitting enable signals respectively. The selecting signal decoder generates the transmitting enable signals according to the selecting signals. Wherein, M and N are positive integers.
Abstract translation: 公开了一种数模转换器。 数模转换器包括电压选择器，M电压发射开关和选择信号解码器。 电压选择器在多个模拟输入电压中接收N个第一电压，并接收多个数字选择信号。 电压选择器选择用于提供给输出端的第一电压中的至少一个。 电压发送开关的一个端子分别在输入电压之间接收M个第二电压，并且电压发送开关分别根据M个发送使能信号导通或关断。 选择信号解码器根据选择信号产生发送使能信号。 其中，M和N是正整数。
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公开(公告)号：US20140009506A1
公开(公告)日：2014-01-09
申请号：US13740282
申请日：2013-01-14
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Jhih-Siou Cheng , Ju-Lin Huang , Pang-Chan Hung
CPC classification number: H03M1/76 , G09G3/2007 , G09G3/3291 , G09G3/3696 , G09G5/02 , G09G2310/027 , G09G2320/0276 , G09G2330/028 , H03K3/01 , H03M1/66 , H03M1/765
Abstract: A digital to analog converter is disclosed. The digital to analog converter includes a voltage selector, M voltage transmitting switches and a selecting signal decoder. The voltage selector receives N first voltages among a plurality of analog input voltages, and receives a plurality of digital selecting signals. The voltage selector selects at most one of the first voltages for providing to an output terminal. One terminals of the voltage transmitting switches receives M second voltages among the input voltages respectively, and the voltage transmitting switches are turned on or off according to M transmitting enable signals respectively. The selecting signal decoder generates the transmitting enable signals according to the selecting signals. Wherein, M and N are positive integers.
Abstract translation: 公开了一种数模转换器。 数模转换器包括电压选择器，M电压发射开关和选择信号解码器。 电压选择器在多个模拟输入电压中接收N个第一电压，并接收多个数字选择信号。 电压选择器选择用于提供给输出端的第一电压中的至少一个。 电压发送开关的一个端子分别在输入电压之间接收M个第二电压，并且电压发送开关分别根据M个发送使能信号导通或关断。 选择信号解码器根据选择信号产生发送使能信号。 其中，M和N是正整数。
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公开(公告)号：US09142169B2
公开(公告)日：2015-09-22
申请号：US13736091
申请日：2013-01-08
Applicant: NOVATEK Microelectronics Corp.
Inventor： Jhih-Siou Cheng , Ju-Lin Huang , Pang-Chan Hung
IPC: G09G3/36
CPC classification number: G09G3/36 , G09G3/3685 , G09G2310/027
Abstract: A digital to analog converter for a source driver chip of a liquid crystal display device is disclosed. The digital to analog converter comprises an output terminal for outputting an output voltage, a plurality of receiving terminals for receiving a plurality of Gamma voltages, and a plurality of transmission paths comprising a plurality of first-type transistors coupled between the plurality of receiving terminals and the output terminal, respectively, for outputting one of the plurality of Gamma voltages as the output voltage according to a digital select signal; wherein a first transmission path corresponding to a first receiving terminal receiving a first Gamma voltage closest to a middle voltage among the plurality of Gamma voltages has lower on-resistance than other transmission paths among the plurality of transmission paths when a same source-to-gate voltage is applied.
Abstract translation: 公开了一种用于液晶显示装置的源极驱动器芯片的数模转换器。 数模转换器包括用于输出输出电压的输出端子，用于接收多个伽马电压的多个接收端子以及耦合在多个接收端子之间的多个第一型晶体管的多个传输路径，以及多个传输路径 输出端子，用于根据数字选择信号输出多个伽马电压中的一个作为输出电压; 其中对应于接收第一接收端的第一传输路径，当多个伽马电压中的最接近中间电压的第一伽马电压具有相同的源极到栅极之间的多个传输路径中的其它传输路径的导通电阻较低 施加电压。
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公开(公告)号：US20140026009A1
公开(公告)日：2014-01-23
申请号：US13843186
申请日：2013-03-15
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Jhih-Siou CHENG , Pang-Chan Hung
IPC: G01R31/3177
CPC classification number: G01R31/3177 , G01R31/31713 , G01R31/3172
Abstract: An integrated circuit includes an input unit, a core processor and M output buffers, where M is a natural number greater than 1. The input unit has an output control pin, and receives an output control signal. The core processor is coupled to the input unit, and receives the output control signal to provide M output control signals. The M output buffers are coupled to the core processor, and are time-division multiplexing and enabled in response to the M output control signals, respectively, to output M output signals in M operation periods, respectively.
Abstract translation: 集成电路包括输入单元，核心处理器和M个输出缓冲器，其中M是大于1的自然数。输入单元具有输出控制引脚并接收输出控制信号。 核心处理器耦合到输入单元，并接收输出控制信号以提供M个输出控制信号。 M个输出缓冲器被耦合到核心处理器，并且分别是时分复用和响应于M个输出控制信号使其能够分别在M个操作周期中输出M个输出信号。
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