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1. 发明授权

US08717338B2 Display drive circuit 有权
标题翻译：显示驱动电路
公开(公告)号：US08717338B2
公开(公告)日：2014-05-06
申请号：US13063539
申请日：2009-09-04
申请人： Young-Suk Son , Hyun-Min Song , Hyun-Ja Cho , Yong-Sung Ahn , Hyung-Seog Oh , Dae-Keun Han
发明人： Young-Suk Son , Hyun-Min Song , Hyun-Ja Cho , Yong-Sung Ahn , Hyung-Seog Oh , Dae-Keun Han
IPC分类号： G06F3/038
CPC分类号： G09G3/3614 , G09G3/3688 , G09G2310/0248 , G09G2310/0297 , G09G2330/021
摘要： A display driving circuit includes a buffer section, an N-dot switch circuit, a charge sharing switch circuit, and a sharing voltage level control switch circuit. The buffer section buffers a plurality of pixel driving signals outputted from a plurality of DACs. The N-dot switch circuit selects paths of the plurality of pixel driving signals outputted from the buffer section in response to a first path selecting signal or a second path selecting signal that is determined depending upon a dot inversion method, and switches the paths to a plurality of output terminals. The charge sharing switch circuit shares charges among the plurality of output terminals in response to a charge sharing control signal. The sharing voltage level control switch circuit controls charge sharing between the plurality of output terminals and a voltage level upon charge sharing, in response to a sharing voltage level control signal.
摘要翻译：显示驱动电路包括缓冲器部分，N点开关电路，电荷共享开关电路和共享电压电平控制开关电路。缓冲器部分缓冲从多个DAC输出的多个像素驱动信号。 N点开关电路响应于根据点反转方法确定的第一路径选择信号或第二路径选择信号，选择从缓冲器部分输出的多个像素驱动信号的路径，并将路径切换到多个输出端子。电荷共享开关电路响应于电荷共享控制信号而在多个输出端子之间共享电荷。响应于共享电压电平控制信号，共享电压电平控制开关电路控制多个输出端子之间的电荷共享和电荷共享时的电压电平。

2. 发明申请

US20120044227A1 POWER SUPPLY CIRCUIT FOR LIQUID CRYSTAL DISPLAY DEVICE 有权
标题翻译：液晶显示器件电源电路
公开(公告)号：US20120044227A1
公开(公告)日：2012-02-23
申请号：US12909272
申请日：2010-10-21
申请人： Yong-Sung Ahn , Jung-Min Choi , Sang-Rok Cha , Dae-Keun Han , Hyung-Seog Oh , Yong-Suk Kim
发明人： Yong-Sung Ahn , Jung-Min Choi , Sang-Rok Cha , Dae-Keun Han , Hyung-Seog Oh , Yong-Suk Kim
IPC分类号： G09G5/00 , G09G3/36
CPC分类号： G09G3/3696 , G09G3/3677 , G09G2330/02 , G09G2330/06
摘要： A power supply circuit of a liquid crystal display device includes a first positive polarity charge charging unit including a first capacitor connected to positive and negative power terminals through switches to charge a charge, a second positive polarity charge charging unit including a second capacitor connected to the positive power terminal and a ground terminal through switches to charge a charge, a first positive polarity charge loading unit loading the charge supplied through the positive power terminal to a negative polarity terminal, a second positive polarity charge loading unit loading the charge charged in the first capacitor to a negative polarity terminal, a third positive polarity charge loading unit loading the charge charged in the second capacitor, and a positive polarity charge charging/loading control unit outputting charging control signals with a same phase to the switches, and periodically or irregularly changing durations of the charging and loading control signals.
摘要翻译：液晶显示装置的电源电路包括第一正极性充电充电单元，其包括通过开关对正电源端子和负电源端子连接的第一电容器进行充电;第二正极性充电单元，包括连接到正电源端子和接地端子，通过开关对电荷充电，第一正极性电荷负载单元将通过正电源端子提供的电荷负载到负极端子;第二正极性电荷负载单元，负载在第一电容器连接到负极端子，第三正极性电荷负载单元加载充电在第二电容器中的电荷;以及正极性充电充电/负载控制单元，向开关输出具有相同相位的充电控制信号，并周期性地或不规则地改变充电和加载控制的持续时间诺尔斯

3. 发明申请

US20100141687A1 METHOD OF ARRANGING GAMMA BUFFERS AND FLAT PANEL DISPLAY APPLYING THE METHOD 审中-公开
标题翻译：应用该方法的装置缓冲器和平板显示器的方法
公开(公告)号：US20100141687A1
公开(公告)日：2010-06-10
申请号：US12594794
申请日：2008-03-26
申请人： Dae-Keun Han , Dae-Seong Kim , Joon-Ho Na , Hong-Hee Son , Hyun-Ho Cho , Hyung-Seog Oh
发明人： Dae-Keun Han , Dae-Seong Kim , Joon-Ho Na , Hong-Hee Son , Hyun-Ho Cho , Hyung-Seog Oh
IPC分类号： G09G5/10
CPC分类号： G09G3/2007 , G09G2310/0275 , G09G2320/0276 , G09G2320/041
摘要： Provided are a method of arranging gamma buffers capable of decreasing a Kelvin of a source driver included in a flat panel display and minimizing a temperature deviation between source drivers, and the flat panel display applying the method. The method of arranging a plurality of gamma buffers which are arranged in one or more source drivers to output corresponding gamma voltages, includes a step of calculating power consumptions of the gamma buffers, wherein the method further comprises one or more steps of: changing tab points of the gamma buffers by using the calculated power consumptions of the gamma buffers; and changing positions of the gamma buffers by using the calculated power consumptions of the gamma buffers.
摘要翻译：提供了一种布置能够降低平板显示器中包括的源极驱动器的开尔文并使源极驱动器之间的温度偏差最小化的应用该方法的平板显示器的方法。布置在一个或多个源驱动器中以输出相应伽马电压的多个伽马缓冲器的方法包括计算伽马缓冲器的功耗的步骤，其中该方法还包括一个或多个步骤：改变标记点的γ缓冲器的功率消耗; 以及通过使用计算出的伽马缓冲器的功率消耗来改变伽马缓冲器的位置。

4. 发明授权

US08963905B2 Liquid crystal display panel driving circuit 有权
标题翻译：液晶显示面板驱动电路
公开(公告)号：US08963905B2
公开(公告)日：2015-02-24
申请号：US12912187
申请日：2010-10-26
申请人： Hyun-Ho Cho , Ji-Hun Kim , Joon-Ho Na , Hyung-Seog Oh , Dae-Seong Kim , Dae-Keun Han
发明人： Hyun-Ho Cho , Ji-Hun Kim , Joon-Ho Na , Hyung-Seog Oh , Dae-Seong Kim , Dae-Keun Han
IPC分类号： G09G5/00 , H03M1/00 , G09G3/36 , G09G3/20
CPC分类号： G09G3/3685 , G09G3/20 , G09G3/3696 , G09G2310/027
摘要： Disclosed is a liquid crystal display panel driving circuit for driving a liquid crystal display panel with a resolution of N bits. N-bit digital data including upper X bits and lower Y bits is inputted. The liquid crystal display panel driving circuit includes a resistor string unit according to areas, a DAC converter switching unit according to areas, and an interpolation amplifier. The resistor string unit outputs analog reference voltages at different ratios according to three areas. The DAC converter switching unit receives the N-bit digital data, selects (Y+1) analog voltages from the analog reference voltages based on the upper X bits, outputs the (Y+1) analog voltages, and outputs the (Y+1) analog voltages of different combinations based on the lower Y bits. The interpolation amplifier receives the (Y+1) analog voltages and generates an interpolated output voltage by setting weights for the (Y+1) analog voltages by using multi-factors.
摘要翻译：公开了一种以N位分辨率驱动液晶显示面板的液晶显示面板驱动电路。输入包括高X位和低Y位的N位数字数据。液晶显示面板驱动电路包括根据区域的电阻串单元，根据区域的DAC转换器切换单元和内插放大器。电阻串单元根据三个区域输出不同比例的模拟参考电压。 DAC转换器切换单元接收N位数字数据，从模拟参考电压基于高X位选择（Y + 1）模拟电压，输出（Y + 1）模拟电压，并输出（Y + 1））基于较低Y位的不同组合的模拟电压。内插放大器通过使用多因素设置（Y + 1）模拟电压的权重，接收（Y + 1）模拟电压并产生内插输出电压。

5. 发明授权

US08441473B2 Method for removing offset between channels of LCD panel 有权
标题翻译：清除LCD面板通道之间偏移的方法
公开(公告)号：US08441473B2
公开(公告)日：2013-05-14
申请号：US12593102
申请日：2008-03-17
申请人： Dae-Keun Han , Dae-Seong Kim , Hyung-Seog Oh , Joon-Ho Na , Hyun-Ho Cho
发明人： Dae-Keun Han , Dae-Seong Kim , Hyung-Seog Oh , Joon-Ho Na , Hyun-Ho Cho
IPC分类号： G06F3/038
CPC分类号： G09G3/3614 , G09G3/3685 , G09G2320/0247
摘要： A method of removing offsets between channels of a liquid crystal panel is provided. The method includes: alternately arranging first type output buffers and second type output buffers for driving the pixels in units of at least two rows of the pixels; and arranging the first type output buffers and the second type output buffers in units of at least two columns of the pixels so that the output buffers with types opposite to those of previous two columns are arranged. The second type output buffers are embodied by switching connections among the differential transistors and connections among the load transistors in the first type output buffers.
摘要翻译：提供一种去除液晶面板通道之间偏移的方法。该方法包括：交替排列第一类型的输出缓冲器和第二类型的输出缓冲器，用于以至少两行像素为单位驱动像素; 并且以至少两列像素为单位布置第一类型输出缓冲器和第二类型输出缓冲器，使得排列具有与前两列相反类型的输出缓冲器。第二类型输出缓冲器通过在差分晶体管之间切换连接和在第一类型输出缓冲器中的负载晶体管之间的连接来实现。

6. 发明申请

US20110096054A1 LIQUID CRYSTAL DISPLAY PANEL DRIVING CIRCUIT 有权
标题翻译：液晶显示面板驱动电路
公开(公告)号：US20110096054A1
公开(公告)日：2011-04-28
申请号：US12912187
申请日：2010-10-26
申请人： Hyun-Ho CHO , Ji-Hun Kim , Joon-Ho Na , Hyung-Seog Oh , Dae-Seong Kim , Dae-Keun Han
发明人： Hyun-Ho CHO , Ji-Hun Kim , Joon-Ho Na , Hyung-Seog Oh , Dae-Seong Kim , Dae-Keun Han
IPC分类号： G09G3/36 , G09G5/00
CPC分类号： G09G3/3685 , G09G3/20 , G09G3/3696 , G09G2310/027
摘要： Disclosed is a liquid crystal display panel driving circuit for driving a liquid crystal display panel with a resolution of N bits. N-bit digital data including upper X bits and lower Y bits is inputted. The liquid crystal display panel driving circuit includes a resistor string unit according to areas, a DAC converter switching unit according to areas, and an interpolation amplifier. The resistor string unit outputs analog reference voltages at different ratios according to three areas. The DAC converter switching unit receives the N-bit digital data, selects (Y+1) analog voltages from the analog reference voltages based on the upper X bits, outputs the (Y+1) analog voltages, and outputs the (Y+1) analog voltages of different combinations based on the lower Y bits. The interpolation amplifier receives the (Y+1) analog voltages and generates an interpolated output voltage by setting weights for the (Y+1) analog voltages by using multi-factors.
摘要翻译：公开了一种以N位分辨率驱动液晶显示面板的液晶显示面板驱动电路。输入包括高X位和低Y位的N位数字数据。液晶显示面板驱动电路包括根据区域的电阻串单元，根据区域的DAC转换器切换单元和内插放大器。电阻串单元根据三个区域输出不同比例的模拟参考电压。 DAC转换器切换单元接收N位数字数据，从模拟参考电压基于高X位选择（Y + 1）模拟电压，输出（Y + 1）模拟电压，并输出（Y + 1））基于较低Y位的不同组合的模拟电压。内插放大器通过使用多因素设置（Y + 1）模拟电压的权重，接收（Y + 1）模拟电压并产生内插输出电压。

7. 发明申请

US20100118024A1 METHOD FOR REMOVING OFFSET BETWEEN CHANNELS OF LCD PANEL 有权
标题翻译：移除LCD面板通道之间偏移的方法
公开(公告)号：US20100118024A1
公开(公告)日：2010-05-13
申请号：US12593102
申请日：2008-03-17
申请人： Dae-Keun Han , Dae-Seong Kim , Hyung-Seog Oh , Joon-Ho Na , Hyun-Ho Cho
发明人： Dae-Keun Han , Dae-Seong Kim , Hyung-Seog Oh , Joon-Ho Na , Hyun-Ho Cho
IPC分类号： G09G3/36 , G06F3/038
CPC分类号： G09G3/3614 , G09G3/3685 , G09G2320/0247
摘要： A method of removing offsets between channels of a liquid crystal panel is provided. The method includes: alternately arranging first type output buffers and second type output buffers for driving the pixels in units of at least two rows of the pixels; and arranging the first type output buffers and the second type output buffers in units of at least two columns of the pixels so that the output buffers with types opposite to those of previous two columns are arranged. The second type output buffers are embodied by switching connections among the differential transistors and connections among the load transistors in the first type output buffers.
摘要翻译：提供一种去除液晶面板通道之间偏移的方法。该方法包括：交替排列第一类型的输出缓冲器和第二类型的输出缓冲器，用于以至少两行像素为单位驱动像素; 并且以至少两列像素为单位布置第一类型输出缓冲器和第二类型输出缓冲器，使得排列具有与前两列相反类型的输出缓冲器。第二类型输出缓冲器通过在差分晶体管之间切换连接和在第一类型输出缓冲器中的负载晶体管之间的连接来实现。

8. 发明申请

US20100259564A1 DISPLAY DRIVING INTEGRATED CIRCUIT AND DISPLAY DRIVING SYSTEM 审中-公开
标题翻译：显示驱动集成电路和显示驱动系统
公开(公告)号：US20100259564A1
公开(公告)日：2010-10-14
申请号：US12678999
申请日：2008-09-29
申请人： Yong-Sung Ahn , Dae-Seong Kim , Dae-Keun Han
发明人： Yong-Sung Ahn , Dae-Seong Kim , Dae-Keun Han
IPC分类号： G06F3/038
CPC分类号： G09G3/3688 , G09G2310/027 , G09G2370/08
摘要： Provided is a high-resolution display driving system without a new design of interfaces between a timing controller and DDIs, particularly, without an entire change of a DAC unit having a role of determining gradation representation of DDIs and offsets between channels. The high-resolution display driving system includes a timing controller and a DDI unit. The timing controller generates a differential clock signal and differential data. The DDI unit generates a plurality of converted signals corresponding to the differential data in response to an operation instructing signal, a reset/enable signal, and the differential clock signal. A scheme of data transmission from the timing controller to the DDI unit is at least one of a multi-drop scheme and an m-LVDS (mini low voltage differential signaling) scheme.
摘要翻译：提供了一种高分辨率显示驱动系统，没有时序控制器和DDI之间的接口的新设计，特别是没有完全改变具有确定DDI的灰度表示和通道之间的偏移的DAC单元的整体变化。高分辨率显示驱动系统包括定时控制器和DDI单元。定时控制器产生差分时钟信号和差分数据。 DDI单元响应于操作指示信号，复位/使能信号和差分时钟信号产生对应于差分数据的多个转换信号。从定时控制器到DDI单元的数据传输方案是多点方案和m-LVDS（迷你低电压差分信令）方案中的至少一种。

9. 发明申请

US20110102410A1 CIRCUIT AND METHOD FOR DRIVING OLED DISPLAY 有权
标题翻译：用于驱动OLED显示器的电路和方法
公开(公告)号：US20110102410A1
公开(公告)日：2011-05-05
申请号：US12912223
申请日：2010-10-26
申请人： Hyun-Ho CHO , Yong-Icc Jung , Young-Bok Kim , Joon-Ho Na , Dae-Seong Kim , Dae-Keun Han
发明人： Hyun-Ho CHO , Yong-Icc Jung , Young-Bok Kim , Joon-Ho Na , Dae-Seong Kim , Dae-Keun Han
IPC分类号： G09G5/00
CPC分类号： G09G3/3291 , G09G2300/0819 , G09G2320/0285 , G09G2320/0295 , G09G2320/045
摘要： A circuit for driving an organic light emitting diode display includes a display panel that displays an image by using organic light emitting diodes disposed at intersection areas of a plurality of gate lines and a plurality of data lines; a threshold voltage detection control unit that supplies a precharge voltage by sequentially turning on transistors for threshold voltage detection, which are connected among the data lines and the organic light emitting diodes on the display panel, in units of horizontal lines, and enables threshold voltages to be detected; and a source driver that detects threshold voltages of all organic light emitting diodes arranged on a corresponding horizontal line, and repeats an operation, as necessary, for sampling/holding the detected threshold voltages through M sample/hold circuits, converting the sampled/held threshold voltages into digital signals, and storing the digital signals in a memory.
摘要翻译：用于驱动有机发光二极管显示器的电路包括：显示面板，其通过使用设置在多条栅极线和多条数据线的交叉区域上的有机发光二极管来显示图像; 阈值电压检测控制单元，其以水平线为单位顺序地接通连接在显示面板上的数据线和有机发光二极管之间的用于阈值电压检测的晶体管，从而提供预充电电压，被检测到以及源驱动器，其检测布置在相应的水平线上的所有有机发光二极管的阈值电压，并根据需要重复进行通过M个采样/保持电路采样/保持检测到的阈值电压的操作，转换采样/保持阈值电压转换为数字信号，并将数字信号存储在存储器中。

10. 发明申请

US20100265274A1 OFFSET COMPENSATION GAMMA BUFFER AND GRAY SCALE VOLTAGE GENERATION CIRCUIT USING THE SAME 审中-公开
标题翻译：偏移补偿伽马缓冲器和灰度级电压发生电路
公开(公告)号：US20100265274A1
公开(公告)日：2010-10-21
申请号：US12741924
申请日：2008-10-30
申请人： Dae-Keun Han , Dae-Seong Kim , Joon-Ho Na , An-Young Kim , Man-Jeong Ko
发明人： Dae-Keun Han , Dae-Seong Kim , Joon-Ho Na , An-Young Kim , Man-Jeong Ko
IPC分类号： G09G5/10 , G09G3/36
CPC分类号： G09G3/3688 , G09G2310/027
摘要： Disclosed are an offset compensation gamma buffer and a gray scale voltage generation circuit using the same. The offset compensation gamma buffer includes: a buffer which outputs an input voltage input to a positive or negative input terminal as an output voltage; and a switching unit which selectively connects the input voltage and the output voltage of the buffer to the positive and negative input terminals in response to a control signal. The output voltage of the offset compensation gamma buffer is supplied to the input of a gray scale voltage generation circuit of a source driver for driving a liquid crystal panel. The offset of the offset compensation gamma buffer is compensated using an inversion timing of the control signal. The output voltage of the offset compensation gamma buffer is supplied as a reference voltage of the voltage divider unit for generating the gray scale voltages, and the offset of the gray scale voltages is also compensated.
摘要翻译：公开了一种偏移补偿伽马缓冲器和使用其的灰度级电压产生电路。偏移补偿伽马缓冲器包括：输出输入到正或负输入端的输入电压作为输出电压的缓冲器; 以及切换单元，其响应于控制信号选择性地将缓冲器的输入电压和输出电压连接到正负输入端子。偏移补偿伽马缓冲器的输出电压被提供给用于驱动液晶面板的源极驱动器的灰度级电压产生电路的输入端。使用控制信号的反转定时来补偿偏移补偿伽马缓冲器的偏移。偏移补偿伽马缓冲器的输出电压作为分压器单元的基准电压被提供，用于产生灰度级电压，并且补偿灰度级电压的偏移。

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