公开(公告)号：US08976097B2

公开(公告)日：2015-03-10

申请号：US13600739

申请日：2012-08-31

申请人： Woo-nyoung Lee ,  Hyun-sang Park ,  Seong-young Ryu

发明人： Woo-nyoung Lee ,  Hyun-sang Park ,  Seong-young Ryu

IPC分类号： G09G3/36

CPC分类号： G09G3/3614 ,  G09G3/3696

摘要： A driving apparatus and a display driving system. The driving apparatus includes a first amplification unit receiving a first signal and outputting a driving signal of a positive polarity voltage with respect to a reference voltage, a second amplification unit receiving a second signal and outputting a driving signal of a negative polarity voltage with respect to the reference voltage, and a controller for determining a chopping signal applied to a chopping terminal of the second amplification unit such that an offset polarity of an output voltage of the first amplification unit and an offset polarity of an output voltage of the second amplification unit are the same.

摘要翻译： 驱动装置和显示驱动系统。 所述驱动装置包括：第一放大单元，接收第一信号并输出​​相对于参考电压的正极性电压的驱动信号;第二放大单元，接收第二信号，并输出负极性电压的驱动信号相对于 参考电压和用于确定施加到第二放大单元的斩波端的斩波信号的控制器，使得第一放大单元的输出电压的偏移极性和第二放大单元的输出电压的偏移极性为 一样。

公开(公告)号：US20060092119A1

公开(公告)日：2006-05-04

申请号：US11258471

申请日：2005-10-25

申请人： Hyung-tae Kim ,  Woo-nyoung Lee

发明人： Hyung-tae Kim ,  Woo-nyoung Lee

IPC分类号： G09G3/36

CPC分类号： G09G3/3688 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2320/0276

摘要： A source driver that responds to image data by generating an output signal which can be used to drive a flat panel display. The source driver includes a gamma decoder and an amplifier. The gamma decoder selects a first voltage among first analog gray voltages based on some upper bits of the image data, selects a second voltage among second analog gray voltages based on other upper bits of the image data, and selectively outputs at least one of the first and second voltages as a plurality of distributed analog signals in response to lower bits of the image data. The amplifier interpolates between the distributed analog signals from the gamma decoder to generate the output signal of the source driver. The amplifier includes bias circuits that are each configured to generate a bias current, and a plurality of MOSFETs. Each of the MOSFETs includes a source, a drain, and a gate terminal. The gate terminal of each of the MOSFETS is separately connected to receive a different one of the distributed analog signals from the gamma decoder. One of the source/drain terminals of each of the MOSFETS is separately connected to a different one of the bias circuits to receive the bias current, and the other one of the source/drain terminals of each of the MOSFETS is connected together at an output node to generate an interpolated signal. The output signal is based on the interpolated signal.

公开(公告)号：US20100020114A1

公开(公告)日：2010-01-28

申请号：US12500225

申请日：2009-07-09

申请人： Woo-nyoung Lee ,  Chang-hwe Choi ,  Chon-wook Park

发明人： Woo-nyoung Lee ,  Chang-hwe Choi ,  Chon-wook Park

IPC分类号： G09G5/10

CPC分类号： G09G3/3688 ,  G09G3/2011

摘要： A display driver integrated circuit (IC) includes a grayscale voltage generator, a main decoder unit, a pre-decoder unit, and an output buffer unit. The grayscale voltage generator is configured to receive at least one gamma reference voltage and generate a plurality of grayscale voltages. The main decoder unit is configured to receive the grayscale voltages and data, decode the data, and selectively output a grayscale voltage based on the decoded result. The pre-decoder unit is configured to decode part of the data and output a precharge voltage. The output buffer unit is configured to sequentially receive an output of the pre-decoder unit and an output of the main-decoder unit, and output grayscale data used for driving a display device.

摘要翻译： 显示驱动器集成电路（IC）包括灰度级电压发生器，主解码器单元，预解码器单元和输出缓冲器单元。 灰度电压发生器被配置为接收至少一个伽马参考电压并产生多个灰度级电压。 主解码器单元被配置为接收灰度电压和数据，解码数据，并且基于解码结果选择性地输出灰度电压。 预解码器单元被配置为对部分数据进行解码并输出预充电电压。 输出缓冲器单元被配置为顺序地接收预解码器单元的输出和主解码器单元的输出，以及输出用于驱动显示设备的灰度数据。

公开(公告)号：US07511694B2

公开(公告)日：2009-03-31

申请号：US11258471

申请日：2005-10-25

申请人： Hyung-tae Kim ,  Woo-nyoung Lee

发明人： Hyung-tae Kim ,  Woo-nyoung Lee

IPC分类号： G09G3/36

CPC分类号： G09G3/3688 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2320/0276

摘要： A source driver that responds to image data by generating an output signal which can be used to drive a flat panel display. The source driver includes a gamma decoder and an amplifier. The gamma decoder selects a first voltage among first analog gray voltages based on some upper bits of the image data, selects a second voltage among second analog gray voltages based on other upper bits of the image data, and selectively outputs at least one of the first and second voltages as a plurality of distributed analog signals in response to lower bits of the image data. The amplifier interpolates between the distributed analog signals from the gamma decoder to generate the output signal of the source driver. The amplifier includes bias circuits that are each configured to generate a bias current, and a plurality of MOSFETs. Each of the MOSFETs includes a source, a drain, and a gate terminal. The gate terminal of each of the MOSFETS is separately connected to receive a different one of the distributed analog signals from the gamma decoder. One of the source/drain terminals of each of the MOSFETS is separately connected to a different one of the bias circuits to receive the bias current, and the other one of the source/drain terminals of each of the MOSFETS is connected together at an output node to generate an interpolated signal. The output signal is based on the interpolated signal.

摘要翻译： 通过产生可用于驱动平板显示器的输出信号来响应图像数据的源驱动器。 源极驱动器包括伽马解码器和放大器。 伽马解码器基于图像数据的一些较高比特来选择第一模拟灰度电压中的第一电压，基于图像数据的其他高位选择第二模拟灰度电压中的第二电压，并且选择性地输出第一模拟灰度电压中的至少一个 以及响应于图像数据的较低位的第二电压作为多个分布式模拟信号。 放大器在来自伽马解码器的分布式模拟信号之间内插，以产生源驱动器的输出信号。 放大器包括各自被配置为产生偏置电流的偏置电路和多个MOSFET。 每个MOSFET包括源极，漏极和栅极端子。 每个MOSFETs的栅极端子被单独连接以从γ解码器接收不同的分布式模拟信号。 每个MOSFET的源极/漏极端子之一分别连接到不同的偏置电路以接收偏置电流，并且每个MOSFET的源极/漏极端子中的另一个在输出端连接在一起 节点以产生内插信号。 输出信号基于内插信号。

公开(公告)号：US09601076B2

公开(公告)日：2017-03-21

申请号：US12400222

申请日：2009-03-09

申请人： Hyung-tae Kim ,  Woo-nyoung Lee

发明人： Hyung-tae Kim ,  Woo-nyoung Lee

IPC分类号： G09G3/36

CPC分类号： G09G3/3688 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2320/0276

摘要： A source driver that responds to image data by generating an output signal which can be used to drive a flat panel display. The source driver includes a gamma decoder and an amplifier. The gamma decoder selects a first voltage among first analog gray voltages based on some upper bits of the image data, selects a second voltage among second analog gray voltages based on other upper bits of the image data, and selectively outputs at least one of the first and second voltages as a plurality of distributed analog signals in response to lower bits of the image data. The amplifier interpolates between the distributed analog signals from the gamma decoder to generate the output signal of the source driver. The amplifier includes bias circuits that are each configured to generate a bias current, and a plurality of MOSFETs. Each of the MOSFETs includes a source, a drain, and a gate terminal. The gate terminal of each of the MOSFETS is separately connected to receive a different one of the distributed analog signals from the gamma decoder. One of the source/drain terminals of each of the MOSFETS is separately connected to a different one of the bias circuits to receive the bias current, and the other one of the source/drain terminals of each of the MOSFETS is connected together at an output node to generate an interpolated signal. The output signal is based on the interpolated signal.

公开(公告)号：US08502813B2

公开(公告)日：2013-08-06

申请号：US12853682

申请日：2010-08-10

申请人： Woo-nyoung Lee

发明人： Woo-nyoung Lee

IPC分类号： G06F3/038 ,  G09G5/00

CPC分类号： H03K19/018521 ,  G09G3/20 ,  G09G2310/0289

摘要： A semiconductor device includes a code generator and a level shifter. The code generator generates a code including one bit that is in a first logic state and at least one bit that is in a second logic state. The level shifter outputs signals that are at a first voltage level or at a second voltage level through a plurality of output terminals in response to the code. The level shifter includes a plurality of voltage controllers and a plurality of voltage converters. All but one of the voltage controllers control first signals output through all but one of the output terminals to be at the first voltage level in response to the at least one bit. One of the voltage converters controls a second signal output through the remaining output terminal to be at the second voltage level in response to the first signals.

摘要翻译： 半导体器件包括码发生器和电平移位器。 代码生成器生成包括处于第一逻辑状态的一个位和处于第二逻辑状态的至少一个位的代码。 电平移位器响应于代码，通过多个输出端子输出处于第一电压电平或第二电压电平的信号。 电平移位器包括多个电压控制器和多个电压转换器。 除了一个电压控制器之外，除了一个输出端子之外，除了一个电压控制器之外，除了至少一个位之外，所有其中一个电压控制器控制通过除了一个输出端子之外的所有输出端口处于第一电压电平。 其中一个电压转换器响应于第一信号控制通过剩余输出端输出的第二信号为第二电压电平。

公开(公告)号：US20090174645A1

公开(公告)日：2009-07-09

申请号：US12400222

申请日：2009-03-09

申请人： Hyung-tae Kim ,  Woo-nyoung Lee

发明人： Hyung-tae Kim ,  Woo-nyoung Lee

IPC分类号： G09G3/36

CPC分类号： G09G3/3688 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2320/0276

摘要： A source driver that responds to image data by generating an output signal which can be used to drive a flat panel display. The source driver includes a gamma decoder and an amplifier. The gamma decoder selects a first voltage among first analog gray voltages based on some upper bits of the image data, selects a second voltage among second analog gray voltages based on other upper bits of the image data, and selectively outputs at least one of the first and second voltages as a plurality of distributed analog signals in response to lower bits of the image data. The amplifier interpolates between the distributed analog signals from the gamma decoder to generate the output signal of the source driver. The amplifier includes bias circuits that are each configured to generate a bias current, and a plurality of MOSFETs. Each of the MOSFETs includes a source, a drain, and a gate terminal. The gate terminal of each of the MOSFETS is separately connected to receive a different one of the distributed analog signals from the gamma decoder. One of the source/drain terminals of each of the MOSFETS is separately connected to a different one of the bias circuits to receive the bias current, and the other one of the source/drain terminals of each of the MOSFETS is connected together at an output node to generate an interpolated signal. The output signal is based on the interpolated signal.

摘要翻译： 通过产生可用于驱动平板显示器的输出信号来响应图像数据的源驱动器。 源极驱动器包括伽马解码器和放大器。 伽马解码器基于图像数据的一些较高比特来选择第一模拟灰度电压中的第一电压，基于图像数据的其他高位选择第二模拟灰度电压中的第二电压，并且选择性地输出第一模拟灰度电压中的至少一个 以及响应于图像数据的较低位的第二电压作为多个分布式模拟信号。 放大器在来自伽马解码器的分布式模拟信号之间内插，以产生源驱动器的输出信号。 放大器包括各自被配置为产生偏置电流的偏置电路和多个MOSFET。 每个MOSFET包括源极，漏极和栅极端子。 每个MOSFETs的栅极端子被单独连接以从γ解码器接收不同的分布式模拟信号。 每个MOSFET的源极/漏极端子之一分别连接到不同的偏置电路以接收偏置电流，并且每个MOSFET的源极/漏极端子中的另一个在输出端连接在一起 节点以产生内插信号。 输出信号基于内插信号。