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1. 发明授权

US08362935B2 Device and method for controlling reference voltage of digital-to-analog converter 有权
标题翻译：用于控制数模转换器参考电压的装置和方法
公开(公告)号：US08362935B2
公开(公告)日：2013-01-29
申请号：US13188321
申请日：2011-07-21
申请人： Sun-Kyung Shin , Chul-Sang Jang
发明人： Sun-Kyung Shin , Chul-Sang Jang
IPC分类号： H03M1/10
CPC分类号： H03M1/1038 , H03M1/662
摘要： The present invention relates to device and method for controlling a reference voltage of a digital-to-analog converter for minimizing variation of output voltages among LED driving chips which drive an LED (Light Emitting Diode) backlight.
摘要翻译：本发明涉及用于控制数模转换器的参考电压的装置和方法，用于最小化驱动LED（发光二极管）背光的LED驱动芯片之间的输出电压的变化。

2. 发明申请

US20100165010A1 METHOD AND APPARATUS FOR DRIVING LIQUID CRYSTAL DISPLAY 有权
标题翻译：用于驱动液晶显示的方法和装置
公开(公告)号：US20100165010A1
公开(公告)日：2010-07-01
申请号：US12721276
申请日：2010-03-10
申请人： Seong Ho Baik , Chul Sang Jang
发明人： Seong Ho Baik , Chul Sang Jang
IPC分类号： G09G5/10 , G06F3/038
CPC分类号： G09G3/3611 , G09G3/342 , G09G3/3648 , G09G2320/0271 , G09G2340/16 , G09G2360/16
摘要： A driving method and apparatus for a liquid crystal display uses a comparison between the previous frame and the current frame to expand the contrast ratio and reduce the manufacturing cost. A limited amount of data from the current image may be used: either using a limited area of the image or merely the amount of green in the overall image or the limited area. In the apparatus, an image signal modulator expands the contrast of the input data when the previous image is analogous to the current image to thereby generate output data. A timing controller re-arranges the output data to apply the output data to a data driver.
摘要翻译：用于液晶显示器的驱动方法和装置使用前一帧和当前帧之间的比较来扩大对比度并降低制造成本。可以使用来自当前图像的有限数量的数据：使用图像的有限区域或仅在整个图像或有限区域中的绿色量。在该装置中，当先前的图像类似于当前图像时，图像信号调制器扩展输入数据的对比度，从而生成输出数据。定时控制器重新排列输出数据以将输出数据应用于数据驱动器。

3. 发明授权

US06597395B1 Black level calibration apparatus for video camera 有权
标题翻译：用于摄像机的黑色级别校准装置
公开(公告)号：US06597395B1
公开(公告)日：2003-07-22
申请号：US09250184
申请日：1999-02-16
申请人： Min Gyu Kim , Chul Sang Jang
发明人： Min Gyu Kim , Chul Sang Jang
IPC分类号： H04N5228
CPC分类号： H04N5/18 , H04N5/20 , H04N5/3575 , H04N5/378
摘要： The black level calibration apparatus includes a black level clamp circuit which generates a black level clamp signal based on a calibrated reference voltage. A correlated double sampling/automatic gain control (CDS/AGS) circuit performs sample/hold and automatic gain control operations on an analog image signal based on the black level clamping signals. An analog-to-digital converter converts the analog image output from the CDS/AGS circuit into a digital image signal. A control signal setting circuit compares the black level value of the digital image signal with a black level calibration value, and sets a digital control signal based on the comparison. A reference voltage calibration circuit generates the calibrated reference voltage in accordance with the digital control signal.
摘要翻译：黑电平校准装置包括黑电平钳位电路，其基于校准的参考电压产生黑电平钳位信号。相关双采样/自动增益控制（CDS / AGS）电路基于黑电平钳位信号对模拟图像信号执行采样/保持和自动增益控制操作。模拟 - 数字转换器将从CDS / AGS电路输出的模拟图像转换为数字图像信号。控制信号设定电路将数字图像信号的黑电平值与黑电平校准值进行比较，并根据比较设定数字控制信号。参考电压校准电路根据数字控制信号产生校准的参考电压。

4. 发明授权

US07746334B2 Apparatus and method for driving liquid crystal display device 有权
标题翻译：用于驱动液晶显示装置的装置和方法
公开(公告)号：US07746334B2
公开(公告)日：2010-06-29
申请号：US11139440
申请日：2005-05-27
申请人： Dong Hoon Lee , Juhn Suk Yoo , Chul Sang Jang , Oh Kyong Kwon
发明人： Dong Hoon Lee , Juhn Suk Yoo , Chul Sang Jang , Oh Kyong Kwon
IPC分类号： G06F3/033
CPC分类号： G09G3/3688 , G09G3/3614
摘要： A driving apparatus of a liquid crystal display device includes a liquid crystal display panel display a video signal by use of a liquid crystal cell of a matrix shape. A plurality of data drive circuits generate a polarity pattern of the video signal in accordance with a polarity signal and supply the polarity pattern to the liquid crystal cell through a plurality of output channels. A polarity controller controls the polarity signal and supplies the polarity signal to the data drive circuits on the basis of a first selection signal corresponding to the number of the output channels of one drive circuit and a second selection signal corresponding to a repetition period of the polarity pattern.
摘要翻译：液晶显示装置的驱动装置包括液晶显示面板，通过使用矩阵形状的液晶单元显示视频信号。多个数据驱动电路根据极性信号产生视频信号的极性图案，并通过多个输出通道将极性图案提供给液晶单元。极性控制器控制极性信号，并且基于与一个驱动电路的输出通道的数量相对应的第一选择信号和对应于极性的重复周期的第二选择信号将极性信号提供给数据驱动电路模式。

5. 发明授权

US07705814B2 Method and apparatus for driving liquid crystal display 有权
标题翻译：用于驱动液晶显示器的方法和装置
公开(公告)号：US07705814B2
公开(公告)日：2010-04-27
申请号：US10879947
申请日：2004-06-28
申请人： Seong Ho Baik , Chul Sang Jang
发明人： Seong Ho Baik , Chul Sang Jang
IPC分类号： G09G3/36
CPC分类号： G09G3/3611 , G09G3/342 , G09G3/3648 , G09G2320/0271 , G09G2340/16 , G09G2360/16
摘要： A driving method and apparatus for a liquid crystal display uses a comparison between the previous frame and the current frame to expand the contrast ratio and reduce the manufacturing cost. A limited amount of data from the current image may be used: either using a limited area of the image or merely the amount of green in the overall image or the limited area. In the apparatus, an image signal modulator expands the contrast of the input data when the previous image is analogous to the current image to thereby generate output data. A timing controller re-arranges the output data to apply the output data to a data driver.
摘要翻译：用于液晶显示器的驱动方法和装置使用前一帧和当前帧之间的比较来扩大对比度并降低制造成本。可以使用来自当前图像的有限数量的数据：使用图像的有限区域或仅在整个图像或有限区域中的绿色量。在该装置中，当先前的图像类似于当前图像时，图像信号调制器扩展输入数据的对比度，从而生成输出数据。定时控制器重新排列输出数据以将输出数据应用于数据驱动器。

6. 发明授权

US07663588B2 Circuit and method for driving flat display device 有权
标题翻译：驱动平板显示装置的电路及方法
公开(公告)号：US07663588B2
公开(公告)日：2010-02-16
申请号：US11476795
申请日：2006-06-29
申请人： Chul Sang Jang , Jin Chul Choi
发明人： Chul Sang Jang , Jin Chul Choi
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G2310/027 , G09G2320/0276 , G09G2330/021
摘要： A circuit for driving a liquid crystal display device, as embodied, includes: a gray level voltage generator for generating a plurality of gray level voltages; and an intermediate gray level voltage generator for receiving a first gray level voltage and a second gray level voltage among the plurality of gray level voltages and for selectively outputting one of the first gray level voltage and a third gray level voltage through a plurality of capacitors, a value of the third gray level voltage being between the first and second gray level voltage and set by the plurality of capacitors, the intermediate gray level voltage generator including: an operational amplifier for pre-charging the plurality of capacitors using a current outputted from the operational amplifier and for selectively outputting one of the first gray level voltage and the third gray level voltage.
摘要翻译：具体实施方式的驱动液晶显示装置的电路包括：灰度级电压发生器，用于产生多个灰度级电压; 以及中间灰度级电压发生器，用于接收所述多个灰度级电压中的第一灰度电压和第二灰度级电压，并且通过多个电容器选择性地输出所述第一灰度级电压和第三灰度级电压之一，所述第三灰度级电压的值在所述第一和第二灰度级电压之间并由所述多个电容器设定，所述中间灰度级电压发生器包括：运算放大器，用于使用从所述多个电容器输出的电流对所述多个电容器进行预充电运算放大器，并且用于选择性地输出第一灰度级电压和第三灰度级电压之一。

7. 发明授权

US07629956B2 Apparatus and method for driving image display device 有权
标题翻译：用于驱动图像显示装置的装置和方法
公开(公告)号：US07629956B2
公开(公告)日：2009-12-08
申请号：US11301948
申请日：2005-12-13
申请人： Chul Sang Jang , Jong Hoon Kim
发明人： Chul Sang Jang , Jong Hoon Kim
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G3/3648 , G09G2300/0876 , G09G2310/027 , G09G2330/021 , G09G2330/06
摘要： An apparatus and method for driving an image display device is disclosed, in which data signals are transmitted in a multilevel to reduce transmission frequencies, power consumption and transmission lines. The apparatus for driving an image display device includes a display panel including an image display unit for displaying images, a plurality of data driver integrated circuits supplying image signals to the image display unit, and a timing controller converting externally supplied i bit digital source data (i is a positive number) to a plurality of voltage levels to supply the converted voltage levels to the respective data driver integrated circuits and controlling the data driver integrated circuits.
摘要翻译：公开了一种用于驱动图像显示装置的装置和方法，其中数据信号以多级传输以减少传输频率，功耗和传输线。用于驱动图像显示装置的装置包括：显示面板，包括用于显示图像的图像显示单元，向图像显示单元提供图像信号的多个数据驱动器集成电路;以及转换外部提供的i位数字源数据的定时控制器 i是正数）到多个电压电平，以将转换的电压电平提供给各个数据驱动器集成电路并控制数据驱动器集成电路。

8. 发明申请

US20120146826A1 DEVICE AND METHOD FOR CONTROLLING REFERENCE VOLTAGE OF DIGITAL-TO-ANALOG CONVERTER 有权
标题翻译：用于控制数字到模拟转换器的参考电压的装置和方法
公开(公告)号：US20120146826A1
公开(公告)日：2012-06-14
申请号：US13188321
申请日：2011-07-21
申请人： Sun-Kyung SHIN , Chul-Sang JANG
发明人： Sun-Kyung SHIN , Chul-Sang JANG
IPC分类号： H03M1/66
CPC分类号： H03M1/1038 , H03M1/662
摘要： The present invention relates to device and method for controlling a reference voltage of a digital-to-analog converter for minimizing variation of output voltages among LED driving chips which drive an LED (Light Emitting Diode) backlight.
摘要翻译：本发明涉及用于控制数模转换器的参考电压的装置和方法，用于最小化驱动LED（发光二极管）背光的LED驱动芯片之间的输出电压的变化。

9. 发明授权

US08031156B2 Data driving circuit of liquid crystal display for selectively switching and multiplexing voltages in accordance with a bit order of input data 有权
标题翻译：液晶显示器的数据驱动电路，用于根据输入数据的位顺序选择性地切换和复用电压
公开(公告)号：US08031156B2
公开(公告)日：2011-10-04
申请号：US11819939
申请日：2007-06-29
申请人： Chul Sang Jang , Jin Chul Choi
发明人： Chul Sang Jang , Jin Chul Choi
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G2310/027
摘要： A data driving circuit of a liquid crystal display for selectively switching and multiplexing voltages in accordance with a bit order of input data is disclosed. The data driver circuit includes: a voltage distributor that selects one of a first voltage and a second voltages as first output voltage in accordance with the most significant bit of input data including a plurality of n data bits, that multiplexes the first voltage and the second voltage to be output as one of more multiplexed output voltage is one of the first voltage and the second voltage selected in accordance with bits of the input data lower in significance than the most significant bit, and that outputs the first voltage as a final output voltage; and an output buffer that is driven by the first output voltage, the one or more multiplexed output voltages, and the final output voltage.
摘要翻译：公开了一种用于根据输入数据的位顺序选择性地切换和复用电压的液晶显示器的数据驱动电路。数据驱动器电路包括：电压分配器，其根据包括多个n个数据位的输入数据的最高有效位选择第一电压和第二电压中的一个作为第一输出电压，多路复用第一电压和第二电压作为多路复用输出电压之一输出的电压是根据比最高有效位低的输入数据的比特选择的第一电压和第二电压之一，并且将第一电压作为最终输出电压输出 ; 以及由第一输出电压驱动的输出缓冲器，一个或多个多路复用输出电压和最终输出电压。

10. 发明授权

US07986288B2 Liquid crystal display device 有权
标题翻译：液晶显示装置
公开(公告)号：US07986288B2
公开(公告)日：2011-07-26
申请号：US11494035
申请日：2006-07-27
申请人： Chul Sang Jang , Jin Chul Choi
发明人： Chul Sang Jang , Jin Chul Choi
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G2310/0248 , G09G2330/021
摘要： An LCD with reduced power consumption is described. The LCD includes a liquid crystal panel having a plurality of gate lines and data lines, a data driver supplying a data voltage to the plurality of data lines, a controller generating a current control signal to control an output terminal of the data driver so that the output terminal operates during a first period in which data is outputted from the data driver, and the output terminal does not operate during a second period in which data is not outputted from the data driver, and a gate driver that supplies a scan signal to the plurality of the gate lines.
摘要翻译：描述了降低功耗的LCD。 LCD包括具有多个栅极线和数据线的液晶面板，向多个数据线提供数据电压的数据驱动器，产生电流控制信号以控制数据驱动器的输出端的控制器，输出端子在从数据驱动器输出数据的第一时段期间操作，并且在数据不从数据驱动器输出数据的第二周期期间输出端子不工作;以及栅极驱动器，其将扫描信号提供给多个栅极线。

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