公开(公告)号：US07535944B1

公开(公告)日：2009-05-19

申请号：US10860607

申请日：2004-06-03

申请人： Peter Guilfoyle ,  Jongwoo Kim ,  Duane A. Loudeback ,  Gregory Pickrell

发明人： Peter Guilfoyle ,  Jongwoo Kim ,  Duane A. Loudeback ,  Gregory Pickrell

IPC分类号： H01S5/00

CPC分类号： H01S5/423 ,  G02B6/4214 ,  H01S5/0422 ,  H01S5/1032 ,  H01S5/105 ,  H01S5/141 ,  H01S5/18308 ,  H01S5/18311 ,  H01S5/187 ,  H01S5/2063 ,  H01S5/4012

摘要： An optical coupler comprises first and second mirrors. The first mirror is positioned with respect to the second mirror so that a resonant cavity is defined between them. A waveguide structure is positioned in the resonant cavity and includes a photonic crystal coupler. A thickness of the resonant cavity is selected so that a phase matching condition is satisfied for resonance in the resonant cavity. At least one of the first and second mirrors may be formed from a structure in an optoelectronic device. Alternatively, at least one of the first and second mirrors is formed from a semiconductor layer. At least one of the first and second mirrors may be formed as a semiconductor distributed bragg reflector, or as a dielectric distributed bragg reflector. At least one of the first and second mirrors may be a mirror in a vertical cavity surface emitting laser (VCSEL) structure. The photonic crystal coupler structure may be shaped so that first order modes of light incident upon the photonic crystal coupler structure are coupled into the waveguide while zero-order modes are reflected out into the resonant cavity and reflected by the mirror.

摘要翻译： 光耦合器包括第一和第二反射镜。 第一镜相对于第二镜定位，使得在它们之间限定谐振腔。 波导结构位于谐振腔中并且包括光子晶体耦合器。 选择谐振腔的厚度，使得谐振腔中的谐振满足相位匹配条件。 第一和第二反射镜中的至少一个可以由光电器件中的结构形成。 或者，第一和第二反射镜中的至少一个由半导体层形成。 第一和第二反射镜中的至少一个可以形成为半导体分布式布拉格反射器，或者形成为电介质分布布拉格反射器。 第一和第二反射镜中的至少一个可以是垂直腔表面发射激光（VCSEL）结构中的反射镜。 光子晶体耦合器结构可以被成形为使得入射到光子晶体耦合器结构的一阶光模耦合到波导中，而零阶模式被反射到谐振腔并被反射镜反射。

公开(公告)号：US06829286B1

公开(公告)日：2004-12-07

申请号：US10136953

申请日：2002-05-01

申请人： Peter Guilfoyle ,  Jongwoo Kim

发明人： Peter Guilfoyle ,  Jongwoo Kim

IPC分类号： H01S300

CPC分类号： G02B6/4214 ,  G02B6/34 ,  H01S5/026 ,  H01S5/1032 ,  H01S5/141 ,  H01S5/18308 ,  H01S5/18311 ,  H01S5/1838 ,  H01S5/4062 ,  H01S5/4068 ,  H01S5/423

摘要： An optical coupler comprises first and second mirrors. The first mirror is positioned with respect to the second mirror so that a resonant cavity is defined between them. A waveguide structure is positioned in the resonant cavity and includes a surface-normal grating structure. A thickness of the resonant cavity is selected so that a phase matching condition is satisfied for resonance in the resonant cavity. At least one of the first and second mirrors may be formed from a structure in an optoelectronic device. Alternatively, at least one of the first and second mirrors is formed from a semiconductor layer. At least one of the first and second mirrors may be formed as a semiconductor distributed bragg reflector, or as a dielectric distributed bragg reflector. At least one of the first and second mirrors may be a mirror in a vertical cavity surface emitting laser (VCSEL) structure. The surface-normal grating structure may be shaped so that first order modes of light incident upon the surface-normal grating structure are coupled into the waveguide while zero-order modes are reflected out into the resonant cavity and reflected by the mirror.

摘要翻译： 光耦合器包括第一和第二反射镜。 第一镜相对于第二镜定位，使得在它们之间限定谐振腔。 波导结构位于谐振腔中，并包括表面法线光栅结构。 选择谐振腔的厚度，使得谐振腔中的谐振满足相位匹配条件。 第一和第二反射镜中的至少一个可以由光电器件中的结构形成。 或者，第一和第二反射镜中的至少一个由半导体层形成。 第一和第二反射镜中的至少一个可以形成为半导体分布式布拉格反射器，或者形成为电介质分布布拉格反射器。 第一和第二反射镜中的至少一个可以是垂直腔表面发射激光（VCSEL）结构中的反射镜。 表面法线光栅结构可以被成形为使得入射到表面法线光栅结构的一阶光模耦合到波导中，而零阶模式被反射到谐振腔并被反射镜反射。

公开(公告)号：US08026887B2

公开(公告)日：2011-09-27

申请号：US12003756

申请日：2007-12-31

申请人： Sungjo Koo ,  Suhyuk Jang ,  Jongwoo Kim

发明人： Sungjo Koo ,  Suhyuk Jang ,  Jongwoo Kim

IPC分类号： G09G3/36

CPC分类号： G09G3/3688 ,  G09G3/3614 ,  G09G2310/0248 ,  G09G2330/021 ,  G09G2330/023 ,  G09G2360/16

摘要： A liquid crystal display includes a liquid crystal display panel, a timing controller to generate a dynamic charge share control signal to indicate a time at which the gray level of a data voltage is changed from a white gray level to a black gray level and a time at which the polarity of the data voltage is inverted, and to detect weakness patterns and generate a dot inversion control signal for widening a horizontal polarity inversion time of data voltages when the weakness patterns are input, wherein the liquid crystal display panel includes first and second liquid crystal cell groups whose polarity is inverted every 2 frame periods, and a polarity inversion time of the first liquid crystal cell group and a polarity inversion time of the second liquid crystal cell group overlap.

摘要翻译： 液晶显示器包括液晶显示面板，定时控制器，用于产生动态电荷共享控制信号，以指示数据电压的灰度级从白色灰度级变为黑色灰度级的时间和时间 数据电压的极性反转，并且检测薄弱图案，并产生点反转控制信号，用于在输入弱图案时加宽数据电压的水平极性反转时间，其中液晶显示面板包括第一和第二 极性每2帧周期反转的液晶单元组和第一液晶单元组的极性反转时间和第二液晶单元组的极性反转时间重叠。

公开(公告)号：US08674976B2

公开(公告)日：2014-03-18

申请号：US13158520

申请日：2011-06-13

申请人： Jongwoo Kim ,  Yongchae Jung ,  Sunguk Byun ,  Jinkoo Kim

发明人： Jongwoo Kim ,  Yongchae Jung ,  Sunguk Byun ,  Jinkoo Kim

IPC分类号： G09G5/00

CPC分类号： G09G3/3648 ,  G09G3/3688 ,  G09G2330/021

摘要： A liquid crystal display includes a liquid crystal display panel including data lines, gate lines crossing the data lines, and liquid crystal cells arranged at crossings of the data lines and the gate lines in a matrix form, a data driving circuit supplying a data voltage to the data lines, and a power consumption reduction circuit, that calculates the number of black pixels, white pixels, or both included in an input image, decides whether or not the input image is a problem pattern increasing power consumption of the data driving circuit based on the calculation result, selectively activates a charge sharing function, which shorts between adjacent output channels of the data driving circuit during a predetermined period, and differently controls a polarity inversion period of the data voltage based on the decision result.

摘要翻译： 液晶显示器包括：液晶显示面板，包括数据线，与数据线交叉的栅极线，以矩阵形式布置在数据线和栅极线交叉处的液晶单元;数据驱动电路， 数据线和功耗降低电路，其计算输入图像中包括的黑色像素数量，白色像素或两者，判定输入图像是否是以数据驱动电路为基础的增加耗电量的问题图案 在计算结果中，选择性地激活电荷共享功能，其在预定时间段内在数据驱动电路的相邻输出通道之间短路，并且基于判定结果不同地控制数据电压的极性反转周期。

公开(公告)号：US20110037760A1

公开(公告)日：2011-02-17

申请号：US12830971

申请日：2010-07-06

申请人： Jongwoo Kim ,  Hyuntaek Nam ,  Suhyuk Jang

发明人： Jongwoo Kim ,  Hyuntaek Nam ,  Suhyuk Jang

IPC分类号： G09G5/00 ,  G09G3/36

CPC分类号： G09G3/3614 ,  G09G3/3611 ,  G09G2320/0247

摘要： A liquid crystal display includes: a liquid crystal display panel including data lines and gate lines crossing each other; a timing controller that maps data of an input image to polarity patterns of 1-dot inversion and 2-dot inversion, counts the number of positive data and the number of negative data, determines whether any one of the positive data and negative data becomes dominant or not based on a difference between the counted numbers, and selects either one of the 1-dot and 2-dot inversions; a data driving circuit that converts the data of the input image into data voltages to be supplied to the data lines and inverts the polarity of the data voltages by the selected dot inversion; and a gate driving circuit that sequentially supplies gate pulses synchronized with the data voltages to the gate lines.

摘要翻译： 液晶显示器包括：包括彼此交叉的数据线和栅极线的液晶显示面板; 将输入图像的数据映射到1点反转和2点反转的极性图案的定时控制器，对正数据的数量和负数据的数量进行计数，确定正数据和负数据中的任何一个是否为主要 或者不是基于计数的数量之间的差异，并且选择1点和2点反转之一; 数据驱动电路，其将输入图像的数据转换成数据电压以提供给数据线，并通过所选择的点反转使数据电压的极性反转; 以及栅极驱动电路，其向栅极线顺序地提供与数据电压同步的栅极脉冲。

公开(公告)号：US20090002291A1

公开(公告)日：2009-01-01

申请号：US12003747

申请日：2007-12-31

申请人： Sungjo Koo ,  Suhyuk Jang ,  Jongwoo Kim

发明人： Sungjo Koo ,  Suhyuk Jang ,  Jongwoo Kim

IPC分类号： G09G3/36

CPC分类号： G09G3/3688 ,  G09G3/3614 ,  G09G2310/0248 ,  G09G2330/021 ,  G09G2330/023 ,  G09G2360/16

摘要： A liquid crystal display includes a liquid crystal display panel including a plurality of data lines, a plurality of gate lines crossing the plurality of data lines, and a plurality of liquid crystal cells, a timing controller to determine gray levels of input digital video data and a time when a polarity of a data voltage to be supplied to the data lines is inverted, and to generate a dynamic charge share control signal when the gray level of the data voltage is changed from a white gray level to a black gray level and the polarity of the data voltage is inverted, a data driving circuit to convert the digital video data from the timing controller into the data voltage, changing the polarity of the data voltage, and supplying any one of a common voltage and a charge share voltage to the data lines in response to the dynamic charge share control signal, and a gate driving circuit to sequentially supply scan pulses to the gate lines under the control of the timing controller.

摘要翻译： 液晶显示器包括：液晶显示面板，包括多条数据线，多条栅极线与多条数据线交叉;以及多个液晶单元，定时控制器，用于确定输入数字视频数据的灰度级;以及 当提供给数据线的数据电压的极性反转时，并且当数据电压的灰度级从白色灰度级变为黑色灰度级时产生动态电荷共享控制信号， 数据电压的极性反转，数据驱动电路将来自定时控制器的数字视频数据转换为数据电压，改变数据电压的极性，并将公共电压和电荷共享电压中的任一个提供给 响应于动态电荷共享控制信号的数据线;以及栅极驱动电路，用于在定时控制器的控制下顺序向扫描脉冲提供扫描脉冲。

公开(公告)号：US20090213056A1

公开(公告)日：2009-08-27

申请号：US12314921

申请日：2008-12-18

申请人： Hyuntaek Nam ,  Suhyuk Jang ,  Myungkook Moon ,  Jongwoo Kim

发明人： Hyuntaek Nam ,  Suhyuk Jang ,  Myungkook Moon ,  Jongwoo Kim

IPC分类号： G09G3/36

CPC分类号： G09G3/3648 ,  G09G2310/062 ,  G09G2310/067 ,  G09G2310/08 ,  G09G2320/0261 ,  G09G2370/08

摘要： An impulsive driving liquid crystal display and a driving method thereof are provided. The liquid crystal display comprises a liquid crystal display panel on which a plurality of data lines and a plurality of gate lines cross each other; a data driving circuit for supplying a video data voltage and a black voltage to the data lines; and a plurality of gate drive ICs for sequentially supplying a gate pulse, synchronized with the video data voltage during a first period, to adjacent gate lines, and then simultaneously supplying a gate pulse, synchronized with the black voltage during a second period, to the gate lines spaced at intervals of at least one line.

摘要翻译： 提供了一种脉冲驱动液晶显示器及其驱动方法。 液晶显示器包括：多个数据线和多个栅极线彼此交叉的液晶显示面板; 用于向数据线提供视频数据电压和黑电压的数据驱动电路; 以及多个栅极驱动IC，用于在第一周期期间与视频数据电压同步地提供与相邻栅极线相同的栅极脉冲，然后在第二周期期间同步地将与黑电压同步的栅极脉冲提供给 以至少一行的间隔隔开的栅极线。

公开(公告)号：US20090002301A1

公开(公告)日：2009-01-01

申请号：US12003756

申请日：2007-12-31

申请人： Sungjo Koo ,  Suhyuk Jang ,  Jongwoo Kim

发明人： Sungjo Koo ,  Suhyuk Jang ,  Jongwoo Kim

IPC分类号： G09G3/36 ,  G02F1/13

CPC分类号： G09G3/3688 ,  G09G3/3614 ,  G09G2310/0248 ,  G09G2330/021 ,  G09G2330/023 ,  G09G2360/16

摘要： A liquid crystal display includes a liquid crystal display panel having a plurality of data lines, a plurality of gate lines, and a plurality of liquid crystal cells, a timing controller to determine gray levels of input digital video data and a time at which a polarity of a data voltage to be supplied to the data lines is inverted and generate a dynamic charge share control signal to indicate a time at which the gray level of the data voltage is changed from a white gray level to a black gray level and a time at which the polarity of the data voltage is inverted, and to detect weakness patterns in which the data of the white gray level and the black gray level are regularly arranged in the input digital video data and generate a dot inversion control signal for widening a horizontal polarity inversion time of data voltages to be supplied to the data lines when the weakness patterns are input, a data driving circuit to convert the digital video data from the timing controller into the data voltage, change the polarity of the data voltage, supply any one of a common voltage and a charge share voltage between a positive data voltage and a negative data voltage to the data lines in response to the dynamic charge share control signal, and widen the horizontal polarity inversion time of the data voltages in response to the dot inversion control signal, and a gate driving circuit to sequentially supply a scan pulse to the gate lines under the control of the timing controller, wherein the liquid crystal display panel includes first and second liquid crystal cell groups whose polarity is inverted every 2 frame periods, and a polarity inversion time of the first liquid crystal cell group and a polarity inversion time of the second liquid crystal cell group overlap.

摘要翻译： 液晶显示器包括具有多个数据线，多个栅极线和多个液晶单元的液晶显示面板，用于确定输入数字视频数据的灰度级的时序控制器和极性 要提供给数据线的数据电压被反相，并产生动态电荷共享控制信号，以指示数据电压的灰度级从白色灰度级变为黑色灰度级的时间和在 数据电压的极性反转，并且检测在输入的数字视频数据中规则地布置白色灰度级和黑色灰度级的数据的弱图案，并产生用于加宽水平极性的点反转控制信号 当输入弱图案时要提供给数据线的数据电压的反转时间，将来自定时控制器的数字视频数据转换为数据电压的数据驱动电路 数据电压，改变数据电压的极性，响应于动态电荷共享控制信号，向数据线提供正数据电压和负数据电压之间的公共电压和电荷共享电压中的任何一个，并且扩大 响应于点反转控制信号的数据电压的水平极性反转时间;以及栅极驱动电路，其在定时控制器的控制下顺序地将栅极线提供扫描脉冲，其中液晶显示面板包括第一和第二 极性每2帧周期反转的液晶单元组和第一液晶单元组的极性反转时间和第二液晶单元组的极性反转时间重叠。

公开(公告)号：US08872748B2

公开(公告)日：2014-10-28

申请号：US12457942

申请日：2009-06-25

申请人： Soondong Cho ,  Hyuntaek Nam ,  Jeongho Kang ,  Jongwoo Kim

发明人： Soondong Cho ,  Hyuntaek Nam ,  Jeongho Kang ,  Jongwoo Kim

IPC分类号： G09G3/36

CPC分类号： G09G3/3677 ,  G09G3/3688 ,  G09G2230/00 ,  G09G2310/0218 ,  G09G2310/063 ,  G09G2320/0261

摘要： A liquid crystal display device and a driving method thereof capable of simplifying of a hardware construction of the liquid crystal display device driven by the impulsive driving method and minimizing capacitance of memory for storing data are provided.

摘要翻译： 提供一种液晶显示装置及其驱动方法，其能够简化由脉冲驱动方法驱动的液晶显示装置的硬件结构并使存储数据的存储器的电容最小化。

公开(公告)号：US08743108B2

公开(公告)日：2014-06-03

申请号：US12292694

申请日：2008-11-24

申请人： Suhyuk Jang ,  Jongwoo Kim

发明人： Suhyuk Jang ,  Jongwoo Kim

IPC分类号： G09G3/18 ,  G09G3/20 ,  G09G3/36 ,  G09G5/10 ,  G06F3/038 ,  G09G5/00 ,  H04N7/01 ,  H04N11/20

CPC分类号： G09G3/3677 ,  G09G2310/062 ,  G09G2320/0247 ,  G09G2320/0261 ,  G09G2340/0435

摘要： A liquid crystal display includes a liquid crystal panel having liquid crystal cells in a matrix array at crossings of data lines and gate lines, a data drive circuit for providing data signals to the data lines, a gate drive circuit for providing gate signals to the gate lines, and a timing controller for receiving video data and timing signals, for checking a frame frequency of the video data in real-time to detect changes in the frame frequency, and for outputting a gate timing control signal to control the gate driving circuit in response to changes in the frame frequency and a data timing control signal for controlling the data driving circuit, wherein the gate timing control signal controls black data insertion percentage in a frame.

摘要翻译： 液晶显示器包括液晶面板，其具有在数据线和栅极线交叉处的矩阵阵列中的液晶单元，用于向数据线提供数据信号的数据驱动电路，用于向栅极提供栅极信号的栅极驱动电路 线路和用于接收视频数据和定时信号的定时控制器，用于实时检查视频数据的帧频，以检测帧频的变化，并输出门定时控制信号以控制门驱动电路 响应于帧频的变化，以及用于控制数据驱动电路的数据定时控制信号，其中门定时控制信号控制一帧中的黑数据插入百分比。