公开(公告)号：US20070241952A1

公开(公告)日：2007-10-18

申请号：US11728903

申请日：2007-03-27

申请人： Cheol-Min Kim ,  Il-Gon Kim ,  Gi-Chang Lee ,  Yang-Hwa Choi ,  Oh-Kyong Kwon

发明人： Cheol-Min Kim ,  Il-Gon Kim ,  Gi-Chang Lee ,  Yang-Hwa Choi ,  Oh-Kyong Kwon

IPC分类号： H03M1/66

CPC分类号： G09G3/20 ,  G09G3/3291 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2330/021 ,  H03M1/76

摘要： A digital-to-analog converter (DAC) includes a decoder unit for receiving an external digital data signal operating over a first predefined voltage range (i.e., 0-5V); a resistor array for generating a plurality of gray voltages defined across a second voltage range that is substantially wider than the first predefined voltage range, and a voltage selecting unit for selecting one of the gray voltages based on an output of the decoder unit, wherein the decoder unit includes a plurality of decoder stages and first and second boost circuits for generating output signals operating over a third voltage range (i.e., 0-7V) that is substantially wider than the first predefined voltage range while not requiring an additional power supply for producing voltages of the third voltage range (i.e., 0-7V).

摘要翻译： 数模转换器（DAC）包括用于接收在第一预定电压范围（即0-5V）上工作的外部数字数据信号的解码器单元; 用于产生在比第一预定电压范围宽的第二电压范围内限定的多个灰度电压的电阻器阵列;以及用于基于解码器单元的输出来选择灰度电压之一的电压选择单元，其中， 解码器单元包括多个解码器级和第一和第二升压电路，用于产生在比第一预定电压范围宽的第三电压范围（即，0-7V）上工作的输出信号，而不需要额外的电源来产生 第三电压范围的电压（即0-7V）。

公开(公告)号：US07489262B2

公开(公告)日：2009-02-10

申请号：US11728903

申请日：2007-03-27

申请人： Cheol-Min Kim ,  Il-Gon Kim ,  Gi-Chang Lee ,  Yang-Hwa Choi ,  Oh-Kyong Kwon

发明人： Cheol-Min Kim ,  Il-Gon Kim ,  Gi-Chang Lee ,  Yang-Hwa Choi ,  Oh-Kyong Kwon

IPC分类号： H03M1/66

CPC分类号： G09G3/20 ,  G09G3/3291 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2330/021 ,  H03M1/76

摘要： A digital-to-analog converter (DAC) includes a decoder unit for receiving an external digital data signal operating over a first predefined voltage range (i.e., 0-5V); a resistor array for generating a plurality of gray voltages defined across a second voltage range that is substantially wider than the first predefined voltage range, and a voltage selecting unit for selecting one of the gray voltages based on an output of the decoder unit, wherein the decoder unit includes a plurality of decoder stages and first and second boost circuits for generating output signals operating over a third voltage range (i.e., 0-7V) that is substantially wider than the first predefined voltage range while not requiring an additional power supply for producing voltages of the third voltage range (i.e., 0-7V).

摘要翻译： 数模转换器（DAC）包括用于接收在第一预定电压范围（即0-5V）上工作的外部数字数据信号的解码器单元; 用于产生在比第一预定电压范围宽的第二电压范围内限定的多个灰度电压的电阻器阵列;以及用于基于解码器单元的输出来选择灰度电压之一的电压选择单元，其中， 解码器单元包括多个解码器级和第一和第二升压电路，用于产生在比第一预定电压范围宽的第三电压范围（即，0-7V）上工作的输出信号，而不需要额外的电源来产生 第三电压范围的电压（即0-7V）。

公开(公告)号：US20070171177A1

公开(公告)日：2007-07-26

申请号：US11623398

申请日：2007-01-16

申请人： Cheol-Min Kim ,  Il-Gon Kim ,  Tae-Hyeong Park ,  Gi-Chang Lee ,  Oh-Kyong Kwon

发明人： Cheol-Min Kim ,  Il-Gon Kim ,  Tae-Hyeong Park ,  Gi-Chang Lee ,  Oh-Kyong Kwon

IPC分类号： G09G3/36

CPC分类号： G09G3/20 ,  G09G3/2011 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2330/021

摘要： A driving device for a display device includes a gray voltage generator generating a plurality of gray voltages, a voltage selector selecting an output voltage from the plurality of gray voltages, a voltage level converter converting a level of the output voltage selected by the voltage selector and applying the output voltage with a converted level to data lines, a first switching unit connecting the voltage level converter to the voltage selector and the data lines, and a second switching unit directly connecting the voltage selector and the data lines. Operating times of the first and second switching units are different. Accordingly, when a data voltage is charged in or discharged from a data line, since a separate discharging transistor or a separate discharging amplifier is not used, power consumption and an area of a data driver are reduced.

摘要翻译： 一种用于显示装置的驱动装置包括产生多个灰度电压的灰度电压发生器，选择多个灰度电压的输出电压的电压选择器，转换由电压选择器选择的输出电压电平的电压电平转换器和 将转换电平的输出电压施加到数据线，将电压电平转换器连接到电压选择器和数据线的第一开关单元，以及直接连接电压选择器和数据线的第二开关单元。 第一和第二开关单元的工作时间不同。 因此，当数据电压被充电到数据线或从数据线放电时，由于不使用单独的放电晶体管或单独的放电放大器，所以功耗和数据驱动器的面积减小。

公开(公告)号：US08159445B2

公开(公告)日：2012-04-17

申请号：US11623398

申请日：2007-01-16

申请人： Cheol-Min Kim ,  Il-Gon Kim ,  Tae-Hyeong Park ,  Gi-Chang Lee ,  Oh-Kyong Kwon

发明人： Cheol-Min Kim ,  Il-Gon Kim ,  Tae-Hyeong Park ,  Gi-Chang Lee ,  Oh-Kyong Kwon

IPC分类号： G09G3/36

摘要： A driving device for a display device includes a gray voltage generator generating a plurality of gray voltages, a voltage selector selecting an output voltage from the plurality of gray voltages, a voltage level converter converting a level of the output voltage selected by the voltage selector and applying the output voltage with a converted level to data lines, a first switching unit connecting the voltage level converter to the voltage selector and the data lines, and a second switching unit directly connecting the voltage selector and the data lines. Operating times of the first and second switching units are different. Accordingly, when a data voltage is charged in or discharged from a data line, since a separate discharging transistor or a separate discharging amplifier is not used, power consumption and an area of a data driver are reduced.

公开(公告)号：US08289260B2

公开(公告)日：2012-10-16

申请号：US11623398

申请日：2007-01-16

申请人： Cheol-Min Kim ,  Il-Gon Kim ,  Tae-Hyeong Park ,  Gi-Chang Lee ,  Oh-Kyong Kwon

发明人： Cheol-Min Kim ,  Il-Gon Kim ,  Tae-Hyeong Park ,  Gi-Chang Lee ,  Oh-Kyong Kwon

IPC分类号： G09G3/36

CPC分类号： G09G3/20 ,  G09G3/2011 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2330/021

摘要： A driving device for a display device includes a gray voltage generator generating a plurality of gray voltages, a voltage selector selecting an output voltage from the plurality of gray voltages, a voltage level converter converting a level of the output voltage selected by the voltage selector and applying the output voltage with a converted level to data lines, a first switching unit connecting the voltage level converter to the voltage selector and the data lines, and a second switching unit directly connecting the voltage selector and the data lines. Operating times of the first and second switching units are different. Accordingly, when a data voltage is charged in or discharged from a data line, since a separate discharging transistor or a separate discharging amplifier is not used, power consumption and an area of a data driver are reduced.

摘要翻译： 一种用于显示装置的驱动装置包括产生多个灰度电压的灰度电压发生器，选择多个灰度电压的输出电压的电压选择器，转换由电压选择器选择的输出电压电平的电压电平转换器和 将转换电平的输出电压施加到数据线，将电压电平转换器连接到电压选择器和数据线的第一开关单元，以及直接连接电压选择器和数据线的第二开关单元。 第一和第二开关单元的工作时间不同。 因此，当数据电压被充电到数据线或从数据线放电时，由于不使用单独的放电晶体管或单独的放电放大器，所以功耗和数据驱动器的面积减小。

公开(公告)号：US07535467B2

公开(公告)日：2009-05-19

申请号：US11122769

申请日：2005-05-05

申请人： Cheol-Min Kim ,  Hyun-Jae Kim ,  Il-Gon Kim ,  Kook-Chul Moon ,  Chul-Ho Kim ,  Kee-Chan Park ,  Su-Gyeong Lee ,  Tae-Hyeong Park ,  Jin-Young Choi ,  Hyun-Sook Shim ,  Oh-Kyong Kwon

发明人： Cheol-Min Kim ,  Hyun-Jae Kim ,  Il-Gon Kim ,  Kook-Chul Moon ,  Chul-Ho Kim ,  Kee-Chan Park ,  Su-Gyeong Lee ,  Tae-Hyeong Park ,  Jin-Young Choi ,  Hyun-Sook Shim ,  Oh-Kyong Kwon

IPC分类号： G09G5/00

CPC分类号： G09G3/3688 ,  H03F3/005 ,  H03F3/505

摘要： An analog buffer, display device having the same and a method of driving the same are provided. The analog buffer applies an analog voltage to a load. The analog buffer includes a comparator and a transistor. The comparator is configured to compare an input voltage provided from an external device with the analog voltage applied to the load. The transistor is turned on to electrically charge the load when the analog voltage is lower than the input voltage or turned on to electrically discharge the load when the analog voltage is higher than the input voltage, and turned off when the analog voltage becomes substantially the same as the input voltage.

摘要翻译： 提供模拟缓冲器，具有该模拟缓冲器的显示装置及其驱动方法。 模拟缓冲器将模拟电压施加到负载。 模拟缓冲器包括比较器和晶体管。 比较器被配置为将从外部设备提供的输入电压与施加到负载的模拟电压进行比较。 当模拟电压低于输入电压时，晶体管导通以对负载进行充电或导通，以在模拟电压高于输入电压时对负载进行放电，并且当模拟电压变得基本相同时，晶体管截止 作为输入电压。

公开(公告)号：US20050258997A1

公开(公告)日：2005-11-24

申请号：US11122769

申请日：2005-05-05

申请人： Cheol-Min Kim ,  Hyun-Jae Kim ,  Il-Gon Kim ,  Kook-Chul Moon ,  Chul-Ho Kim ,  Kee-Chan Park ,  Su-Gyeong Lee ,  Tae-Hyeong Park ,  Jin-Young Choi ,  Hyun-Sook Shim ,  Oh-Kyong Kwon

发明人： Cheol-Min Kim ,  Hyun-Jae Kim ,  Il-Gon Kim ,  Kook-Chul Moon ,  Chul-Ho Kim ,  Kee-Chan Park ,  Su-Gyeong Lee ,  Tae-Hyeong Park ,  Jin-Young Choi ,  Hyun-Sook Shim ,  Oh-Kyong Kwon

IPC分类号： G02F1/133 ,  G09G3/20 ,  G09G3/36 ,  H03F3/00 ,  H03F3/50 ,  H03F3/70 ,  H03K5/08 ,  H03K19/00 ,  H03M1/66

CPC分类号： G09G3/3688 ,  H03F3/005 ,  H03F3/505

摘要： An analog buffer, display device having the same and a method of drving the same are provided. The analog buffer applies an analog voltage to a load. The analog buffer includes a comparator and a transistor. The comparator is configured to compare an input voltage provided from an external device with the analog voltage applied to the load. The transistor is turned on to electrically charge the load when the analog voltage is lower than the input voltage or turned on to electrically discharge the load when the analog voltage is higher than the input voltage, and turned off when the analog voltage becomes substantially the same as the input voltage.

摘要翻译： 提供了一种模拟缓冲器，具有该模拟缓冲器的显示装置及其驱动方法。 模拟缓冲器将模拟电压施加到负载。 模拟缓冲器包括比较器和晶体管。 比较器被配置为将从外部设备提供的输入电压与施加到负载的模拟电压进行比较。 当模拟电压低于输入电压时，晶体管导通以对负载进行充电或导通，以在模拟电压高于输入电压时对负载进行放电，并且当模拟电压变得基本相同时，晶体管截止 作为输入电压。

公开(公告)号：US07544969B2

公开(公告)日：2009-06-09

申请号：US11694262

申请日：2007-03-30

申请人： Gi-Chang Lee ,  Il-Gon Kim ,  Cheol-Min Kim ,  Joon-Ha Park

发明人： Gi-Chang Lee ,  Il-Gon Kim ,  Cheol-Min Kim ,  Joon-Ha Park

IPC分类号： H01L29/04 ,  H01L31/20 ,  H01L31/036 ,  H01L31/0376

CPC分类号： G02F1/13624 ,  G02F2203/09 ,  G09G3/3659 ,  G09G2320/0233

摘要： A display substrate includes a plurality of pixel parts, each including a first and second gate lines, a source line, first, second, and third transistors, and a pumping capacitor. A display device includes a display panel, a gate driving part, a source driving part, and an output selecting part. Each pixel part of a display panel includes a transmissive part, a reflective part, and an adjusting part. The adjusting part adjusts the transmission voltage charged in the reflective part to a reflection voltage based on a control voltage. Thus, transmission voltage applied to the transmissive part is adjusted to reflection voltage to be applied to the reflective part. Therefore, optical reflectivity and optical transmissivity versus voltage are matched with each other, while embodying a single cell-gap and applying a single voltage.

摘要翻译： 显示基板包括多个像素部分，每个像素部分包括第一和第二栅极线，源极线，第一，第二和第三晶体管以及泵浦电容器。 显示装置包括显示面板，门驱动部，源驱动部和输出选择部。 显示面板的每个像素部分包括透射部分，反射部分和调节部分。 调整部根据控制电压将反射部充电的发送电压调整为反射电压。 因此，施加到透射部分的透射电压被调节到要施加到反射部分的反射电压。 因此，光学反射率和光透射率对电压彼此匹配，同时体现单个电池间隙并施加单个电压。

公开(公告)号：US20070080913A1

公开(公告)日：2007-04-12

申请号：US11545961

申请日：2006-10-10

申请人： Tae-Hyeong Park ,  Cheol-Min Kim ,  Il-Gon Kim ,  Chul-Ho Kim ,  Gi-Chang Lee

发明人： Tae-Hyeong Park ,  Cheol-Min Kim ,  Il-Gon Kim ,  Chul-Ho Kim ,  Gi-Chang Lee

IPC分类号： G09G3/36

CPC分类号： G09G3/006 ,  G09G3/3648 ,  G09G2300/0408 ,  G09G2310/0251

摘要： The present invention relates to a display device and a method of testing a display device. A display device according to an exemplary embodiment of the present invention includes: a gate driver for generating gate signals and applying the gate signals to switching elements; a precharge circuit for applying a predetermined voltage to the pixels to precharge the pixels; and a pad portion including a plurality of inspection pads for applying test signals to the gate driver and the precharge circuit. Accordingly, test signals are applied through pads using the gate driver and the precharge circuit, which makes it possible to check whether the two driving circuits normally operate and to detect defects, such as the disconnection or short-circuit of the signal lines, before a module process. Thus, it is possible to reduce manufacturing time and cost.

摘要翻译： 本发明涉及显示装置和显示装置的测试方法。 根据本发明的示例性实施例的显示装置包括：栅极驱动器，用于产生栅极信号并将栅极信号施加到开关元件; 预充电电路，用于向像素施加预定电压以对像素预充电; 以及焊盘部分，其包括用于将测试信号施加到栅极驱动器和预充电电路的多个检查焊盘。 因此，使用栅极驱动器和预充电电路，通过焊盘施加测试信号，这使得可以检查两个驱动电路是否正常工作，并且检测在信号线的断开或短路之前的缺陷 模块过程。 因此，可以减少制造时间和成本。

公开(公告)号：US08279147B2

公开(公告)日：2012-10-02

申请号：US11865468

申请日：2007-10-01

申请人： Gi-Chang Lee ,  Il-Gon Kim ,  Won-Chang Chung ,  Cheol-Min Kim

发明人： Gi-Chang Lee ,  Il-Gon Kim ,  Won-Chang Chung ,  Cheol-Min Kim

IPC分类号： G09G3/36 ,  G02F1/141

CPC分类号： G09G3/006 ,  G09G3/3648 ,  G09G2330/04

摘要： A display device includes a plurality of pixels connected with a plurality of gate lines and a plurality of data lines, a data driving part applying a data signal to the plurality of data lines, a gate driving part applying a gate signal to the plurality of gate lines, and a plurality of protection circuits connected with the plurality of data lines, wherein each of the plurality of protection circuits comprises a first transistor including a control terminal connected with a first signal line, an input terminal connected with a data line, and an output terminal connected with a second signal line, a second transistor including a control terminal connected with the second signal line, an input terminal connected with the second signal line, and an output terminal connected with the first signal line, and a storage capacitor is connected between the control terminal of the first transistor and the output terminal of the first transistor.

摘要翻译： 显示装置包括与多条栅极线和多条数据线连接的多个像素，向多条数据线施加数据信号的数据驱动部分，向多个栅极施加栅极信号的栅极驱动部分 线路以及与多条数据线连接的多个保护电路，其中，所述多个保护电路中的每一个包括：第一晶体管，包括与第一信号线连接的控制端子，与数据线连接的输入端子;以及 输出端子与第二信号线连接，第二晶体管包括与第二信号线连接的控制端子，与第二信号线连接的输入端子以及与第一信号线连接的输出端子，并且存储电容器被连接 在第一晶体管的控制端和第一晶体管的输出端之间。