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1. 发明授权

US07230471B2 Charge pump circuit of LCD driver including driver having variable current driving capability 失效
标题翻译： LCD驱动器的电荷泵电路，包括具有可变电流驱动能力的驱动器
公开(公告)号：US07230471B2
公开(公告)日：2007-06-12
申请号：US11121540
申请日：2005-05-04
申请人： Chul Choi , Jae-Hyuck Woo , Jae-Goo Lee
发明人： Chul Choi , Jae-Hyuck Woo , Jae-Goo Lee
IPC分类号： G05F1/10
CPC分类号： G09G3/3696 , G09G2340/0428 , H02M3/07
摘要： A charge pump circuit of a liquid crystal display driver integrated circuit (LDI) is provided, which can reduce unnecessary current consumption when a load of an output node varies is provided, where, in a gradient mode of a display-on mode, in which an output node of the charge pump circuit has a maximum load, the current driving capability of a driver in the charge pump circuit is increased, and where, in a binary mode, in which the output node of the charge pump circuit has a smaller load than in the gradient mode, the current driving capability of the driver is lower, to prevent unnecessary current consumption caused by too large driving transfer transistors in the driver and to maintain boost efficiency at a proper level.
摘要翻译：提供了一种液晶显示驱动器集成电路（LDI）的电荷泵电路，其可以在输出节点的负载变化时减少不必要的电流消耗，其中，在显示模式的梯度模式中，其中电荷泵电路的输出节点具有最大负载，电荷泵电路中的驱动器的电流驱动能力增加，并且在二进制模式中，电荷泵电路的输出节点具有较小的负载与梯度模式相比，驱动器的电流驱动能力较低，以防止由驱动器中的过大的驱动转换晶体管引起的不必要的电流消耗，并将升压效率保持在适当的水平。

2. 发明申请

US20050248388A1 Charge pump circuit of LCD driver including driver having variable current driving capability 失效
标题翻译： LCD驱动器的电荷泵电路，包括具有可变电流驱动能力的驱动器
公开(公告)号：US20050248388A1
公开(公告)日：2005-11-10
申请号：US11121540
申请日：2005-05-04
申请人： Chul Choi , Jae-Hyuck Woo , Jae-Goo Lee
发明人： Chul Choi , Jae-Hyuck Woo , Jae-Goo Lee
IPC分类号： G09G3/36 , H02M1/00
CPC分类号： G09G3/3696 , G09G2340/0428 , H02M3/07
摘要： A charge pump circuit of a liquid crystal display driver integrated circuit (LDI) is provided, which can reduce unnecessary current consumption when a load of an output node varies is provided, where, in a gradient mode of a display-on mode, in which an output node of the charge pump circuit has a maximum load, the current driving capability of a driver in the charge pump circuit is increased, and where, in a binary mode, in which the output node of the charge pump circuit has a smaller load than in the gradient mode, the current driving capability of the driver is lower, to prevent unnecessary current consumption caused by too large driving transfer transistors in the driver and to maintain boost efficiency at a proper level.
摘要翻译：提供了一种液晶显示驱动器集成电路（LDI）的电荷泵电路，其可以在输出节点的负载变化时减少不必要的电流消耗，其中，在显示模式的梯度模式中，其中电荷泵电路的输出节点具有最大负载，电荷泵电路中的驱动器的电流驱动能力增加，并且在二进制模式中，电荷泵电路的输出节点具有较小的负载与梯度模式相比，驱动器的电流驱动能力较低，以防止由驱动器中的过大的驱动转换晶体管引起的不必要的电流消耗，并将升压效率保持在适当的水平。

3. 发明申请

US20050286309A1 Bit refresh circuit for refreshing register bit values, integrated circuit device having the same, and method of refreshing register bit values 有权
标题翻译：用于刷新寄存器位值的位刷新电路，具有相同的集成电路器件以及刷新寄存器位值的方法
公开(公告)号：US20050286309A1
公开(公告)日：2005-12-29
申请号：US11123263
申请日：2005-05-07
申请人： Won-Sik Kang , Jae-Goo Lee , Jae-Hyuck Woo
发明人： Won-Sik Kang , Jae-Goo Lee , Jae-Hyuck Woo
IPC分类号： G11C7/00 , G11C7/02 , G11C7/10 , G11C11/401 , G11C11/406 , G11C16/06
CPC分类号： G11C11/406 , G11C7/02 , G11C7/1006 , G11C2029/0409 , G11C2207/104
摘要： There is provided a bit refresh circuit and method of checking errors in bit values of a register and refreshing the bit values, and an integrated circuit comprising the bit refresh circuit. The integrated circuit includes a refresh unit checking whether or not the bit values of the register storing data used to control the operations of a logic circuit changes due to external noise. The refresh unit checks bit-by-bit whether or not there are errors in the bit values due to the external noise. If there are errors in the bit values of the register, the data of the associated bit values stored in a memory are refreshed into the register.
摘要翻译：提供了位刷新电路和检查寄存器的位值中的错误并刷新位值的方法，以及包括位刷新电路的集成电路。集成电路包括刷新单元，检查用于控制逻辑电路的操作的寄存器存储数据的位值是否由于外部噪声而改变。刷新单元逐位检查由于外部噪声引起的位值是否有错误。如果寄存器的位值存在错误，存储在存储器中的相关位值的数据将刷新到寄存器中。

4. 发明授权

US07825919B2 Source voltage removal detection circuit and display device including the same 有权
标题翻译：源电压去除检测电路和显示装置包括相同
公开(公告)号：US07825919B2
公开(公告)日：2010-11-02
申请号：US11120194
申请日：2005-05-03
申请人： Jae-Hyuck Woo , Jae-Goo Lee
发明人： Jae-Hyuck Woo , Jae-Goo Lee
IPC分类号： G06F3/038 , G09G5/00
CPC分类号： G09G3/3648 , G09G2310/0245 , G09G2310/063 , G09G2320/0257 , G09G2330/027
摘要： A control signal for removal of an afterimage from an active matrix display device is generated after the removal or disconnect of power from the device. A detector circuit receives a first voltage from a first voltage source and a second voltage from a second voltage source, and outputs a detection signal when either one of the first and second voltages drops to a given voltage level. An output circuit which receives the detection signal and outputs the control signal for removal of the afterimage from the active matrix display device.
摘要翻译：在从设备移除或断开电源之后，产生用于从有源矩阵显示设备移除残像的控制信号。检测器电路从第一电压源接收第一电压和从第二电压源接收第二电压，并且当第一和第二电压中的任一个下降到给定的电压电平时，输出检测信号。输出电路，其接收检测信号并输出用于去除有源矩阵显示装置的残像的控制信号。

5. 发明授权

US08823753B2 Display driver circuit 有权
标题翻译：显示驱动电路
公开(公告)号：US08823753B2
公开(公告)日：2014-09-02
申请号：US12716614
申请日：2010-03-03
申请人： In-Suk Kim , Jae-Goo Lee , Jae-Hyuck Woo
发明人： In-Suk Kim , Jae-Goo Lee , Jae-Hyuck Woo
IPC分类号： G09G5/10
CPC分类号： G09G3/3696 , G09G3/3607 , G09G3/3648 , G09G2320/0673 , G09G2330/021
摘要： A display driver circuit configured to be shared by three grey-scale voltage generators to be respectively used with red (R), green (G) and blue (B) colors. In particular, two of the three grey-scale voltage generators share first and second resistor strings, gamma voltage selectors, and gamma adjustment buffers provided in the other grey-scale voltage generator, thereby reducing the size and power consumption of the display driver circuit. Also, when only a single grey-scale voltage is output, it is possible to deactivate the grey-scale voltages provided by two of the grey-scale generators and further reduce power consumption.
摘要翻译：一种显示驱动器电路，被配置为由三个灰度级电压发生器共享，分别使用红（R），绿（G）和蓝（B）色。特别地，三个灰阶电压发生器中的两个共享第一和第二电阻器串，伽马电压选择器和设置在另一个灰度级电压发生器中的伽马调整缓冲器，从而减小了显示驱动器电路的尺寸和功耗。此外，当仅输出单个灰度电压时，可以禁用由两个灰阶发生器提供的灰度电压，并进一步降低功耗。

6. 发明授权

US07468621B2 Synchronization circuits and methods 有权
标题翻译：同步电路和方法
公开(公告)号：US07468621B2
公开(公告)日：2008-12-23
申请号：US11441610
申请日：2006-05-26
申请人： Jae-Hyuck Woo , Jae-Goo Lee
发明人： Jae-Hyuck Woo , Jae-Goo Lee
IPC分类号： H03K3/00
CPC分类号： G06F1/06 , G06F1/10 , H03K5/151
摘要： A synchronization circuit includes a first level-shifting unit receiving an input reference signal having a first swing voltage and generating a first level change signal having a second swing voltage and a second level change signal having a third swing voltage, and a synchronization unit generating first and second output signals by synchronizing the first level change signal with the second level change signal.
摘要翻译：同步电路包括：第一电平移位单元，接收具有第一摆幅电压的输入参考信号，并产生具有第二摆幅电压的第一电平改变信号和具有第三摆幅电压的第二电平改变信号;以及同步单元，以及通过使第一电平改变信号与第二电平改变信号同步的第二输出信号。

7. 发明授权

US07161864B2 Bit refresh circuit for refreshing register bit values, integrated circuit device having the same, and method of refreshing register bit values 有权
标题翻译：用于刷新寄存器位值的位刷新电路，具有相同的集成电路器件以及刷新寄存器位值的方法
公开(公告)号：US07161864B2
公开(公告)日：2007-01-09
申请号：US11123263
申请日：2005-05-07
申请人： Won-Sik Kang , Jae-Goo Lee , Jae-Hyuck Woo
发明人： Won-Sik Kang , Jae-Goo Lee , Jae-Hyuck Woo
IPC分类号： G11C7/00 , G11C8/00
CPC分类号： G11C11/406 , G11C7/02 , G11C7/1006 , G11C2029/0409 , G11C2207/104
摘要： There is provided a bit refresh circuit and method of checking errors in bit values of a register and refreshing the bit values, and an integrated circuit comprising the bit refresh circuit. The integrated circuit includes a refresh unit checking whether or not the bit values of the register storing data used to control the operations of a logic circuit changes due to external noise. The refresh unit checks bit-by-bit whether or not there are errors in the bit values due to the external noise. If there are errors in the bit values of the register, the data of the associated bit values stored in a memory are refreshed into the register.
摘要翻译：提供了位刷新电路和检查寄存器的位值中的错误并刷新位值的方法，以及包括位刷新电路的集成电路。集成电路包括刷新单元，检查用于控制逻辑电路的操作的寄存器存储数据的位值是否由于外部噪声而改变。刷新单元逐位检查由于外部噪声引起的位值是否有错误。如果寄存器的位值存在错误，存储在存储器中的相关位值的数据将刷新到寄存器中。

8. 发明授权

US07920116B2 Method and circuit of selectively generating gray-scale voltage 有权
标题翻译：有选择地生成灰度电压的方法和电路
公开(公告)号：US07920116B2
公开(公告)日：2011-04-05
申请号：US11755834
申请日：2007-05-31
申请人： Jae-Hyuck Woo , Jae-Goo Lee
发明人： Jae-Hyuck Woo , Jae-Goo Lee
IPC分类号： G09G3/36
CPC分类号： G09G3/3696 , G09G3/3607 , G09G3/3688 , G09G2310/027 , G09G2310/0297 , G09G2320/0209 , G09G2320/0233 , G09G2320/0247 , G09G2320/0673
摘要： Embodiments of the present invention provide a method for driving a liquid crystal display (LCD) device using gray-scale voltages whose dynamic ranges are different from each other depending on pixel color. The gray-scale voltages are output to a source line driver. Embodiments of the invention also provide a gray-scale voltage generation circuit coupled to a LCD source line driver. The disclosed method and circuit reduce coupling phenomena in source lines to substantially remove artifacts such as stripes or flicker in an LCD device.
摘要翻译：本发明的实施例提供一种使用其动态范围根据像素颜色彼此不同的灰度电压来驱动液晶显示（LCD）装置的方法。灰度电压输出到源极线驱动器。本发明的实施例还提供了耦合到LCD源极线驱动器的灰度电压产生电路。所公开的方法和电路减少了源极线中的耦合现象，以便基本上去除LCD器件中的伪影，例如条纹或闪烁。

9. 发明申请

US20100001984A1 GAMMA VOLTAGE CONTROLLER, GRADATION VOLTAGE GENERATOR AND DISPLAY DEVICE HAVING THE SAME 有权
标题翻译：伽马电压控制器，分级电压发生器和具有该电压控制器的显示装置
公开(公告)号：US20100001984A1
公开(公告)日：2010-01-07
申请号：US12496942
申请日：2009-07-02
申请人： In-Suk Kim , Jae-Hyuck Woo , Jae-Goo Lee
发明人： In-Suk Kim , Jae-Hyuck Woo , Jae-Goo Lee
IPC分类号： G09G5/00
CPC分类号： G09G3/3696 , G09G2320/0276 , G09G2320/0673
摘要： A gamma voltage controller includes a gamma distribution unit that generates a plurality of voltages by performing voltage divisions between a first gradation voltage and a N(th) gradation voltage, a gamma selection unit having first through M(th) gamma selectors that respectively select first through M(th) gamma voltages among the plurality of voltages, a gamma buffer unit that changes inflection points of the gamma curve, and buffers the first through M(th) gamma voltages to output buffered first through M(th) gamma voltages, and a gradation distribution unit that generates second through N−1(th) gradation voltages by performing voltage divisions among the buffered first through M(th) gamma voltages. Each of the buffers includes a feedback loop, and some of the buffers change inflection points of the gamma curve.
摘要翻译：伽马电压控制器包括：伽马分配单元，其通过在第一灰度电压和第N灰度电压之间执行电压分割来产生多个电压;伽马选择单元，具有分别首先选择的第一至第M（第）个伽玛选择器通过所述多个电压中的M（th）个伽马电压，伽马缓冲单元，其改变伽马曲线的拐点，并且缓冲第一至第M（th）个伽马电压以输出缓冲的第一至第M（γ）个电压，以及灰度分布单元，通过在缓冲的第一至第M（th）个伽马电压之间执行电压分割来产生第二至第N-1（th）个灰度电压。每个缓冲器包括反馈回路，并且一些缓冲器改变伽马曲线的拐点。

10. 发明申请

US20060214898A1 Display panel driving circuit capable of minimizing circuit area by changing internal memory scheme in display panel and method using the same 有权
标题翻译：显示面板驱动电路能够通过改变显示面板中的内部存储器方案和使用其的方法来最小化电路面积
公开(公告)号：US20060214898A1
公开(公告)日：2006-09-28
申请号：US11363902
申请日：2006-02-28
申请人： Jae-Hyuck Woo , Jae-Goo Lee , Won-Sik Kang
发明人： Jae-Hyuck Woo , Jae-Goo Lee , Won-Sik Kang
IPC分类号： G09G3/36
CPC分类号： G09G3/3688 , G09G2310/0297 , G09G2330/021
摘要： Provided is a display panel driving circuit. The display panel driving circuit rearranges and stores image data input of a predetermined number of source lines externally so that data of the same channel neighbor each other, and compares the rearranged data. If the rearranged data are identical, only one buffer is driven, and common data is transferred to a plurality of source lines, outputs the rearranged data according to each channel, sequentially outputs data according to each source line using source drivers of each channel. Thus, when output data neighboring source lines are identical, the current required for the buffer is reduced.
摘要翻译：提供了一种显示面板驱动电路。显示面板驱动电路重新排列并存储输入预定数量的源极线的图像数据，使得相同频道的数据彼此相邻，并且将重新排列的数据进行比较。如果重新排列的数据相同，则仅驱动一个缓冲器，并将公共数据传送到多个源极线，根据每个通道输出重新排列的数据，使用每个通道的源驱动器根据每个源极线顺序地输出数据。因此，当相邻源极线的输出数据相同时，减少缓冲器所需的电流。

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