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1. 发明授权

US08054280B2 Data driver with bias voltage control circuit and display apparatus having the same 有权
标题翻译：具有偏置电压控制电路的数据驱动器和具有该偏置电压控制电路的显示装置
公开(公告)号：US08054280B2
公开(公告)日：2011-11-08
申请号：US12109288
申请日：2008-04-24
申请人： Sung-Pil Choi , Do-Youn Kim , Jae-Wook Kwon , Ki-Won Seo
发明人： Sung-Pil Choi , Do-Youn Kim , Jae-Wook Kwon , Ki-Won Seo
IPC分类号： G09G3/36
CPC分类号： G09G3/3685 , G09G3/3696 , G09G2310/027 , G09G2320/0233
摘要： A display apparatus including a display driver. The data driver includes a converter to receive and convert image data in digital form into data voltages in analog form, and to provide the data voltages to output buffers. The output buffers receive and buffer the data voltages based on bias voltages generated as part of a feedback path between a bias voltage control circuit and the output buffers. The data voltages are provided to a display part. Before the data voltages output from the output buffers are provided to the display part, the bias voltage control part receives data voltage from the output buffers to count a slew rate of the data voltage, and varies the voltage level of the bias voltage based on the counted result of the slew rate, thereby providing feedback to the output buffers. Accordingly, differences of the slew rate between the data voltages output from the output buffers may be decreased.
摘要翻译：一种显示装置，包括显示驱动器。数据驱动器包括用于以数字形式接收图像数据并以模拟形式将其转换为数据电压的转换器，并将数据电压提供给输出缓冲器。输出缓冲器基于作为偏置电压控制电路和输出缓冲器之间的反馈路径的一部分而产生的偏置电压来接收和缓冲数据电压。数据电压被提供给显示部分。在从输出缓冲器输出的数据电压被提供给显示部分之前，偏置电压控制部分从输出缓冲器接收数据电压以对数据电压的转换速率进行计数，并且基于该偏置电压来改变偏置电压的电压电平计算转换速率的结果，从而向输出缓冲器提供反馈。因此，可以减小从输出缓冲器输出的数据电压之间的转换速率的差异。

2. 发明授权

US07282990B2 Operational amplifier for output buffer and signal processing circuit using the same 有权
标题翻译：输出缓冲器和信号处理电路的运算放大器使用相同
公开(公告)号：US07282990B2
公开(公告)日：2007-10-16
申请号：US11375952
申请日：2006-03-15
申请人： Sung-Pil Choi , Do-Youn Kim , Jae-Wook Kwon
发明人： Sung-Pil Choi , Do-Youn Kim , Jae-Wook Kwon
IPC分类号： G06G7/12
CPC分类号： H03K5/2481 , H03F3/45183 , H03F2203/45674
摘要： An operational amplifier includes: a differential amplifier for differentially amplifying first and second differential input signals to generate first and second output signals through first and second nodes; a driver for driving an output node in response to the second output signal; and a drive current adjuster for adjusting a driving current of the driver in response to the first output signal. The drive current adjuster includes: a first transistor including a drain connected to the output node, a gate, and a source connected to a ground voltage; a second transistor including a gate connected to the first node, a drain, and a source connected to a source voltage; a third transistor including a drain connected to the drain of the second transistor, a source, and a gate connected to a first bias voltage; and a fourth transistor including a drain connected to the source of the third transistor, a source connected to the ground voltage, and a gate connected to a second bias voltage, wherein the gate of the first transistor is commonly connected to the drains of the second and third transistors.
摘要翻译：运算放大器包括：差分放大器，用于差分放大第一和第二差分输入信号，以通过第一和第二节点产生第一和第二输出信号; 用于响应于所述第二输出信号驱动输出节点的驱动器; 以及驱动电流调节器，用于响应于第一输出信号调整驱动器的驱动电流。驱动电流调节器包括：第一晶体管，包括连接到输出节点的漏极，栅极和连接到接地电压的源极; 第二晶体管，包括连接到第一节点的栅极，漏极和连接到源极电压的源极; 第三晶体管，包括连接到第二晶体管的漏极的漏极，源极和连接到第一偏置电压的栅极; 以及第四晶体管，包括连接到第三晶体管的源极的漏极，连接到接地电压的源极和连接到第二偏置电压的栅极，其中第一晶体管的栅极共同连接到第二晶体管的漏极和第三晶体管。

3. 发明申请

US20060238238A1 Operational amplifier for output buffer and signal processing circuit using the same 有权
标题翻译：输出缓冲器和信号处理电路的运算放大器使用相同
公开(公告)号：US20060238238A1
公开(公告)日：2006-10-26
申请号：US11375952
申请日：2006-03-15
申请人： Sung-Pil Choi , Do-Youn Kim , Jae-Wook Kwon
发明人： Sung-Pil Choi , Do-Youn Kim , Jae-Wook Kwon
IPC分类号： H03K5/22 , G06G7/12
CPC分类号： H03K5/2481 , H03F3/45183 , H03F2203/45674
摘要： An operational amplifier includes: a differential amplifier for differentially amplifying first and second differential input signals to generate first and second output signals through first and second nodes; a driver for driving an output node in response to the second output signal; and a drive current adjuster for adjusting a driving current of the driver in response to the first output signal. The drive current adjuster includes: a first transistor including a drain connected to the output node, a gate, and a source connected to a ground voltage; a second transistor including a gate connected to the first node, a drain, and a source connected to a source voltage; a third transistor including a drain connected to the drain of the second transistor, a source, and a gate connected to a first bias voltage; and a fourth transistor including a drain connected to the source of the third transistor, a source connected to the ground voltage, and a gate connected to a second bias voltage, wherein the gate of the first transistor is commonly connected to the drains of the second and third transistors.
摘要翻译：运算放大器包括：差分放大器，用于差分放大第一和第二差分输入信号，以通过第一和第二节点产生第一和第二输出信号; 用于响应于所述第二输出信号驱动输出节点的驱动器; 以及驱动电流调节器，用于响应于第一输出信号调整驱动器的驱动电流。驱动电流调节器包括：第一晶体管，包括连接到输出节点的漏极，栅极和连接到接地电压的源极; 第二晶体管，包括连接到第一节点的栅极，漏极和连接到源极电压的源极; 第三晶体管，包括连接到第二晶体管的漏极的漏极，源极和连接到第一偏置电压的栅极; 以及第四晶体管，包括连接到第三晶体管的源极的漏极，连接到接地电压的源极和连接到第二偏置电压的栅极，其中第一晶体管的栅极共同连接到第二晶体管的漏极和第三晶体管。

4. 发明授权

US07733838B2 Devices and methods of transmitting data, source drivers using the same, and liquid crystal display (LCD) devices having the same 有权
标题翻译：发送数据的装置和方法，使用其的源驱动器以及具有该数据的液晶显示器（LCD）装置
公开(公告)号：US07733838B2
公开(公告)日：2010-06-08
申请号：US11743417
申请日：2007-05-02
申请人： Jae-Wook Kwon , Sung-Pil Choi
发明人： Jae-Wook Kwon , Sung-Pil Choi
IPC分类号： H04B7/216
CPC分类号： G09G3/3674 , G09G2330/021 , G09G2330/06
摘要： A data transmission device for reducing power consumption includes a data source configured to provide data, a data transmission line having a plurality of data transmission sections, and data storage units respectively coupled to the data transmission sections. The respective data storage units determine whether the data storage units store the provided data, and store the provided data based on the determination result. The provided data is sequentially stored into the data storage units, from one end of the data storage units to the other end of the data storage units. A data transmission controller is configured to control the data transmission sections and to transmit the provided data to one of the data storage units. Therefore, the data transmission device may reduce electromagnetic interference (EMI) that is proportional to the current in the source driver.
摘要翻译：用于降低功耗的数据传输装置包括被配置为提供数据的数据源，具有多个数据传输部分的数据传输线以及分别耦合到数据传输部分的数据存储单元。相应的数据存储单元确定数据存储单元是否存储提供的数据，并且基于确定结果来存储所提供的数据。所提供的数据被顺序地存储到数据存储单元中，从数据存储单元的一端到数据存储单元的另一端。数据传输控制器被配置为控制数据传输部分并将提供的数据发送到数据存储单元之一。因此，数据传输设备可以减少与源驱动器中的电流成比例的电磁干扰（EMI）。

5. 发明申请

US20100164924A1 Bias control circuit, source driver, and liquid crystal display device 审中-公开
标题翻译：偏置控制电路，源极驱动器和液晶显示器件
公开(公告)号：US20100164924A1
公开(公告)日：2010-07-01
申请号：US12654256
申请日：2009-12-15
申请人： Ki-Won Seo , Do-Yoon Kim , Jae-Wook Kwon , Sung-Pil Choi
发明人： Ki-Won Seo , Do-Yoon Kim , Jae-Wook Kwon , Sung-Pil Choi
IPC分类号： G09G5/00 , G09G3/36
CPC分类号： G09G3/3688 , G09G3/3666 , G09G3/3696 , G09G2310/0291 , G09G2310/08 , G09G2330/021 , G09G2330/025 , G09G2330/06
摘要： A bias control circuit includes a counter unit, a decoder, a level shifter, and a bias block. The bias control circuit provides plurality bits of first signal indicating information on a plurality of groups based on a number of scanning lines and a number of groups. The decoder decodes the first signal to provide plurality bits of second signal. The level shifter shifts a voltage level of the second signal to provide a bias resistor selection signal. The bias block provides respective bias voltages to the corresponding respective groups by respective resistances being selected in response to the bias resistor selection signal.
摘要翻译：偏置控制电路包括计数器单元，解码器，电平移位器和偏置块。偏置控制电路基于扫描线的数量和组的数量向多个组提供指示信息的第一信号的多个位。解码器对第一信号进行解码以提供第二信号的多个比特。电平移位器移动第二信号的电压电平以提供偏置电阻器选择信号。偏置块通过响应于偏置电阻器选择信号选择的相应电阻向相应的各组提供相应的偏置电压。

6. 发明申请

US20100134471A1 Output driving circuits of output buffers for source driver integrated circuits 审中-公开
标题翻译：用于源极驱动器集成电路的输出缓冲器的输出驱动电路
公开(公告)号：US20100134471A1
公开(公告)日：2010-06-03
申请号：US12591482
申请日：2009-11-20
申请人： Ki-Won Seo , Jae-Wook Kwon , Do-Yun Kim , Sung-Pil Choi
发明人： Ki-Won Seo , Jae-Wook Kwon , Do-Yun Kim , Sung-Pil Choi
IPC分类号： G09G5/00
CPC分类号： G09G3/3688 , G09G3/3614 , G09G2320/02
摘要： An output driving circuit is provided that may reduce power consumption by decreasing static current leakage in a liquid crystal display device. The output driving circuit of an output buffer of a source driver integrated circuit may include: an output driving unit including a pull-up transistor and a pull-down transistor coupled to a source line driving signal output terminal; and a sub output driving unit configured to perform an output driving operation together with the output driving unit during a normal operation period of an active horizontal synchronization signal and configured to be disabled during a period in which the horizontal synchronization signal is inactive in response to a control signal, in order to reduce static current leakage flowing through the output driving circuit. Current leakage is reduced in the inactive period of a horizontal synchronization signal in an output driving circuit, thereby reducing power consumption of a liquid crystal display device.
摘要翻译：提供一种输出驱动电路，其可以通过降低液晶显示装置中的静电流泄漏来降低功耗。源极驱动器集成电路的输出缓冲器的输出驱动电路可以包括：输出驱动单元，包括耦合到源极线驱动信号输出端的上拉晶体管和下拉晶体管; 以及副输出驱动单元，被配置为在活动水平同步信号的正常操作期间内与所述输出驱动单元一起执行输出驱动操作，并且被配置为在所述水平同步信号响应于所述水平同步信号无效的时段期间被禁用控制信号，以减少流过输出驱动电路的静电流泄漏。在输出驱动电路中的水平同步信号的无效期间，电流泄漏减少，从而降低了液晶显示装置的功耗。

7. 发明申请

US20070140014A1 LCD Driver Integrated Circuit Having Double Column Structure 失效
标题翻译：具有双列结构的LCD驱动器集成电路
公开(公告)号：US20070140014A1
公开(公告)日：2007-06-21
申请号：US11467597
申请日：2006-08-28
申请人： Jae-Wook Kwon , Seung-Jung Lee
发明人： Jae-Wook Kwon , Seung-Jung Lee
IPC分类号： G11C11/34
CPC分类号： G09G3/3688 , G09G2310/027 , G09G2320/0276
摘要： A driver integrated circuit (IC) for a liquid crystal display (LCD) has a double column structure. The driver IC includes a first shift register unit, a first data latch unit, first and second decoders, and first and second output buffers. The first data latch unit receives and stores first and second group channel data in response to a clock signal generated by the first shift register unit. The first decoder receives the first group channel data and outputs gamma voltages corresponding to the first group channel data. The second decoder receives the second group channel data and outputs gamma voltages corresponding to the second group channel data. The first and second output buffers are aligned along a long edge of the driver IC and buffer the corresponding gamma voltages to drive corresponding channels. The first shift register unit and the first data latch unit are shared by upper and lower blocks to process the first and second group channel data together.
摘要翻译：用于液晶显示器（LCD）的驱动器集成电路（IC）具有双列结构。驱动器IC包括第一移位寄存器单元，第一数据锁存单元，第一和第二解码器以及第一和第二输出缓冲器。第一数据锁存单元响应于由第一移位寄存器单元产生的时钟信号而接收并存储第一和第二组信道数据。第一解码器接收第一组信道数据并输出与第一组信道数据相对应的伽马电压。第二解码器接收第二组信道数据并输出对应于第二组信道数据的伽马电压。第一和第二输出缓冲器沿着驱动器IC的长边对准，并且缓冲相应的伽马电压以驱动相应的通道。第一移位寄存器单元和第一数据锁存单元由上下块共享以一起处理第一和第二组信道数据。

8. 发明授权

US09537349B2 Power supply system having an emergency power supply cutoff function 有权
标题翻译：电源系统具有应急电源切断功能
公开(公告)号：US09537349B2
公开(公告)日：2017-01-03
申请号：US14123854
申请日：2012-06-04
申请人： Jae-Wook Kwon
发明人： Jae-Wook Kwon
IPC分类号： H02J9/06 , H02J13/00
CPC分类号： H02J9/06 , H02J13/00 , Y02B90/222 , Y04S20/12 , Y10T307/615
摘要： A power supply system having a power supply cut-off function in an emergency is provided. The present system includes a power supply device for receiving and supplying external input power to a device for power supply, a remote controller for controlling an operation of the power supply device according to a remote control signal from a remote place, an uninterruptible power supply device for supplying operation power to the remote controller, a first line switch for, when a power switch is turned on, supplying the external input power to the power supply device and the uninterruptible power supply device, and a second line switch disposed between the power supply device and the first line switch and cutting off the external input power supplied to the power supply device via the first line switch when the uninterruptible power supply device does not output the power. According to the present invention, even when the remote controller is out of order in the emergency, the power supply of the power supply device can be cut off using the interrupted power supply device to thus enhance stability and reliability of the equipment.
摘要翻译：提供了一种在紧急情况下具有电源切断功能的电源系统。本系统包括用于接收和提供外部输入电力给供电设备的电源设备，用于根据来自远程位置的遥控信号控制电源设备的操作的遥控器，不间断电源设备用于向遥控器提供操作电力的第一线路开关，用于当电源开关接通时将外部输入电力提供给电源装置和不间断电源装置的第一线路开关和设置在电源装置和第一线路开关，并且当不间断电源装置不输出电力时，通过第一线路开关切断提供给电源装置的外部输入电力。根据本发明，即使当遥控器在紧急情况下出现故障时，也可以使用中断的电源装置切断供电装置的电源，从而提高设备的稳定性和可靠性。

9. 发明申请

US20140210269A1 POWER SUPPLY SYSTEM HAVING AN EMERGENCY POWER SUPPLY CUTOFF FUNCTION 有权
标题翻译：具有紧急电源切断功能的电源系统
公开(公告)号：US20140210269A1
公开(公告)日：2014-07-31
申请号：US14123854
申请日：2012-06-04
申请人： Jae-Wook Kwon
发明人： Jae-Wook Kwon
IPC分类号： H02J9/06
CPC分类号： H02J9/06 , H02J13/00 , Y02B90/222 , Y04S20/12 , Y10T307/615
摘要： A power supply system having a power supply cut-off function in an emergency is provided. The present system includes a power supply device for receiving and supplying external input power to a device for power supply, a remote controller for controlling an operation of the power supply device according to a remote control signal from a remote place, an uninterruptible power supply device for supplying operation power to the remote controller, a first line switch for, when a power switch is turned on, supplying the external input power to the power supply device and the uninterruptible power supply device, and a second line switch disposed between the power supply device and the first line switch and cutting off the external input power supplied to the power supply device via the first line switch when the uninterruptible power supply device does not output the power. According to the present invention, even when the remote controller is out of order in the emergency, the power supply of the power supply device can be cut off using the interrupted power supply device to thus enhance stability and reliability of the equipment.
摘要翻译：提供了一种在紧急情况下具有电源切断功能的电源系统。本系统包括用于接收和提供外部输入电力给供电设备的电源设备，用于根据来自远程位置的遥控信号控制电源设备的操作的遥控器，不间断电源设备用于向遥控器提供操作电力的第一线路开关，用于当电源开关接通时将外部输入电力提供给电源装置和不间断电源装置的第一线路开关和设置在电源装置和第一线路开关，并且当不间断电源装置不输出电力时，通过第一线路开关切断提供给电源装置的外部输入电力。根据本发明，即使当遥控器在紧急情况下出现故障时，也可以使用中断的电源装置切断供电装置的电源，从而提高设备的稳定性和可靠性。

10. 发明申请

US20080238906A1 DISPLAY DRIVING CIRCUIT AND METHOD FOR CONTROLLING SIGNAL THEREOF 审中-公开
标题翻译：显示驱动电路及其控制信号的方法
公开(公告)号：US20080238906A1
公开(公告)日：2008-10-02
申请号：US11924048
申请日：2007-10-25
申请人： Jae-Wook Kwon
发明人： Jae-Wook Kwon
IPC分类号： G06F3/038
CPC分类号： G09G3/3688 , G09G3/3614 , G09G2310/027 , G09G2330/021
摘要： A display driving circuit capable of driving a display device with a selected polarity includes a plurality of selection units for selecting any one image data signal from a plurality of input image data signals in response to a first control signal, and a plurality of level converting units, each converting a level of the selected image data signal and outputting an output image data signal having the converted level in response to a second control signal. The second control signal has a level converted in a predetermined time from the point in time when a level of the first control signal is converted. The first control signal may be a polarity selection signal and the second control signal may be a vertical line start signal.
摘要翻译：能够驱动具有选定极性的显示装置的显示驱动电路包括多个选择单元，用于响应于第一控制信号从多个输入图像数据信号中选择任何一个图像数据信号，以及多个电平转换单元每个转换所选择的图像数据信号的电平，并响应于第二控制信号输出具有转换电平的输出图像数据信号。第二控制信号在从第一控制信号的电平被转换的时间点起的预定时间内具有电平转换。第一控制信号可以是极性选择信号，第二控制信号可以是垂直线起始信号。

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