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    Thin film transistor and fabrication method thereof
    1.
    发明授权
    Thin film transistor and fabrication method thereof 有权

    公开(公告)号：US06566180B2

    公开(公告)日：2003-05-20

    申请号：US10133314

    申请日：2002-04-29

    申请人： Kee-Chan Park ,  Juhn-Suk Yoo ,  Min-Koo Han

    发明人： Kee-Chan Park ,  Juhn-Suk Yoo ,  Min-Koo Han

    IPC分类号： H01L2184

    CPC分类号： H01L29/78696 ,  H01L27/1296 ,  H01L29/66757 ,  H01L29/78618 ,  H01L29/78666 ,  H01L29/78675

    摘要： The present invention discloses a thin film transistor (TFT) and fabrication method thereof for a liquid crystal display device. The thin film transistor includes a substrate; a buffer layer on the substrate; an amorphous silicon layer having a pure amorphous silicon area and doped amorphous silicon areas, the pure amorphous silicon area having vertical offsets in both sides thereof, the doped amorphous silicon areas having source and drain areas, the doped amorphous silicon areas being doped by a dopant, the source and drain areas positioned on both sides of the pure amorphous silicon area and etched to expose the vertical offsets; an oxidized layer on the pure amorphous silicon area; a polycrystalline silicon layer on the oxidized layer; a gate insulating layer on the polycrystalline silicon layer; a gate electrode on the gate insulating layer; an inter layer insulator having first and second contact holes, the inter layer insulator covering the amorphous silicon layer, the oxidized layer, the polycrystalline silicon layer, the gate insulating layer, and the gate electrode; and source and drain electrodes contacting the source areas through the first contact hole and the drain area through the second contact hole, respectively.

    Thin film transistor and fabrication method thereof
    2.
    发明授权
    Thin film transistor and fabrication method thereof 有权
    薄膜晶体管及其制造方法

    公开(公告)号：US06455874B1

    公开(公告)日：2002-09-24

    申请号：US09893655

    申请日：2001-06-29

    申请人： Kee-Chan Park ,  Juhn-Suk Yoo ,  Min-Koo Han

    发明人： Kee-Chan Park ,  Juhn-Suk Yoo ,  Min-Koo Han

    IPC分类号： H01L2904

    CPC分类号： H01L29/78696 ,  H01L27/1296 ,  H01L29/66757 ,  H01L29/78618 ,  H01L29/78666 ,  H01L29/78675

    摘要： The present invention discloses a thin film transistor (TFT) and fabrication method thereof for a liquid crystal display device. The thin film transistor includes a substrate; a buffer layer on the substrate; an amorphous silicon layer having a pure amorphous silicon area and doped amorphous silicon areas, the pure amorphous silicon area having vertical offsets in both sides thereof, the doped amorphous silicon areas having source and drain areas, the doped amorphous silicon areas being doped by a dopant, the source and drain areas positioned on both sides of the pure amorphous silicon area and etched to expose the vertical offsets; an oxidized layer on the pure amorphous silicon area; a polycrystalline silicon layer on the oxidized layer; a gate insulating layer on the polycrystalline silicon layer; a gate electrode on the gate insulating layer; an inter layer insulator having first and second contact holes, the inter layer insulator covering the amorphous silicon layer, the oxidized layer, the polycrystalline silicon layer, the gate insulating layer, and the gate electrode; and source and drain electrodes contacting the source areas through the first contact hole and the drain area through the second contact hole, respectively.

    摘要翻译： 本发明公开了一种用于液晶显示装置的薄膜晶体管（TFT）及其制造方法。 薄膜晶体管包括基板; 衬底上的缓冲层; 具有纯非晶硅区域和掺杂的非晶硅区域的非晶硅层，纯非晶硅区域在其两侧具有垂直偏移，掺杂的非晶硅区域具有源极和漏极区域，掺杂的非晶硅区域被掺杂剂掺杂 源极和漏极区域位于纯非晶硅区域的两侧，并被蚀刻以暴露垂直偏移; 在纯非晶硅区域上的氧化层; 氧化层上的多晶硅层; 多晶硅层上的栅极绝缘层; 栅绝缘层上的栅电极; 具有第一和第二接触孔的层间绝缘体，覆盖非晶硅层，氧化层，多晶硅层，栅极绝缘层和栅电极的层间绝缘体; 以及源极和漏极电极分别通过第一接触孔和漏极区域通过第二接触孔接触源极区域。

    Direct current to direct current converting circuit, display apparatus having the same and method of driving the direct current to direct current converting circuit
    3.
    发明授权
    Direct current to direct current converting circuit, display apparatus having the same and method of driving the direct current to direct current converting circuit 有权
    直流电流转换电路，具有相同的显示装置以及将直流驱动到直流转换电路的方法

    公开(公告)号：US07843446B2

    公开(公告)日：2010-11-30

    申请号：US11772583

    申请日：2007-07-02

    申请人： Kee-Chan Park ,  Min-Koo Han ,  Woo-Jin Nam ,  Hye-Jin Lee

    发明人： Kee-Chan Park ,  Min-Koo Han ,  Woo-Jin Nam ,  Hye-Jin Lee

    IPC分类号： G09G3/36 ,  G09G5/00

    CPC分类号： H02M3/073 ,  G09G3/3611 ,  G09G3/3648 ,  G09G3/3696 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2330/02

    摘要： In a DC-DC converting circuit, a charge pumping part receives an input voltage, a first clock and a second clock and outputs first and second voltages to first and second nodes, which are boosted by high voltages of the first and second clocks with respect to the input voltage. An output part is connected to the first and second nodes of the charge pumping part, and a level boosting part turns on or turns off the charge pumping part in response to the first and second clocks. The output part outputs the first and second voltages through an output terminal during a high period of the first clock and during a high period of the second clock, respectively. Thus, an output voltage having a voltage level corresponding to two times that of the input voltage may be output from the output terminal while the first and second clocks are provided.

    摘要翻译： 在DC-DC转换电路中，电荷泵送部分接收输入电压，第一时钟和第二时钟，并将第一和第二电压输出到第一和第二节点，第一和第二节点被第一和第二时钟的高电压升压， 到输入电压。 输出部分连接到电荷泵送部分的第一和第二节点，并且电平升高部分响应于第一和第二时钟而导通或关闭电荷泵送部分。 输出部分分别在第一时钟的高周期期间和在第二时钟的高周期期间通过输出端子输出第一和第二电压。 因此，当提供第一和第二时钟时，可以从输出端子输出具有对应于输入电压的两倍的电压电平的输出电压。

    Level shifter and driving method
    4.
    发明授权
    Level shifter and driving method 有权
    电平转换器和驱动方式

    公开(公告)号：US07586358B2

    公开(公告)日：2009-09-08

    申请号：US11771138

    申请日：2007-06-29

    申请人： Kee-Chan Park ,  Min-Koo Han ,  Woo-Jin Nam ,  Jae-Hoon Lee

    发明人： Kee-Chan Park ,  Min-Koo Han ,  Woo-Jin Nam ,  Jae-Hoon Lee

    IPC分类号： H03L5/00

    CPC分类号： H03K3/35613 ,  G09G3/3611 ,  G09G3/3648 ,  G09G2300/0408 ,  G09G2310/0289 ,  G09G2310/08

    摘要： A level shifter includes; a level conversion unit which receives a first input signal and a second input signal, wherein the second input signal is an inversion of the first input signal, and generates a first output signal having substantially a same phase of the first input signal and a voltage which is higher than the first input signal and a second output signal having substantially a same phase as the first input signal and a voltage which is lower than the first input signal; and wherein the level shifter further includes an amplifying unit which receives the first and second output signals and generates a third output signal having substantially a same phase as the first input signal and an amplitude which is greater than the first input signal.

    摘要翻译： 电平转换器包括： 电平转换单元，其接收第一输入信号和第二输入信号，其中所述第二输入信号是所述第一输入信号的反相，并且产生具有与所述第一输入信号基本上相同相位的第一输出信号和 高于第一输入信号，第二输出信号具有与第一输入信号基本相同的相位和低于第一输入信号的电压; 并且其中所述电平移位器还包括放大单元，其接收所述第一和第二输出信号，并产生具有与所述第一输入信号基本相同的相位的第三输出信号和大于所述第一输入信号的幅度。

    DIRECT CURRENT TO DIRECT CURRENT CONVERTING CIRCUIT, DISPLAY APPARATUS HAVING THE SAME AND METHOD OF DRIVING THE DIRECT CURRENT TO DIRECT CURRENT CONVERTING CIRCUIT
    5.
    发明申请
    DIRECT CURRENT TO DIRECT CURRENT CONVERTING CIRCUIT, DISPLAY APPARATUS HAVING THE SAME AND METHOD OF DRIVING THE DIRECT CURRENT TO DIRECT CURRENT CONVERTING CIRCUIT 有权
    直流电直流电流转换电路，具有该直流电流转换电路的显示装置和驱动直流电直接转换电流的方法

    公开(公告)号：US20080122812A1

    公开(公告)日：2008-05-29

    申请号：US11772583

    申请日：2007-07-02

    申请人： Kee-Chan Park ,  Min-Koo Han ,  Woo-Jin Nam ,  Hya-Jin Lee

    发明人： Kee-Chan Park ,  Min-Koo Han ,  Woo-Jin Nam ,  Hya-Jin Lee

    IPC分类号： G06F3/038 ,  G05F1/10 ,  H02M3/07

    CPC分类号： H02M3/073 ,  G09G3/3611 ,  G09G3/3648 ,  G09G3/3696 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2330/02

    摘要： In a DC-DC converting circuit, a charge pumping part receives an input voltage, a first clock and a second clock and outputs first and second voltages to first and second nodes, which are boosted by high voltages of the first and second clocks with respect to the input voltage. An output part is connected to the first and second nodes of the charge pumping part, and a level boosting part turns on or turns off the charge pumping part in response to the first and second clocks. The output part outputs the first and second voltages through an output terminal during a high period of the first clock and during a high period of the second clock, respectively. Thus, an output voltage having a voltage level corresponding to two times that of the input voltage may be output from the output terminal while the first and second clocks are provided.

    摘要翻译： 在DC-DC转换电路中，电荷泵送部分接收输入电压，第一时钟和第二时钟，并将第一和第二电压输出到第一和第二节点，第一和第二节点被第一和第二时钟的高电压升压， 到输入电压。 输出部分连接到电荷泵送部分的第一和第二节点，并且电平升高部分响应于第一和第二时钟而导通或关闭电荷泵送部分。 输出部分分别在第一时钟的高周期期间和在第二时钟的高周期期间通过输出端子输出第一和第二电压。 因此，当提供第一和第二时钟时，可以从输出端子输出具有对应于输入电压的两倍的电压电平的输出电压。

    Data driver capable of an offset compensation and display apparatus having the same
    6.
    发明授权
    Data driver capable of an offset compensation and display apparatus having the same 有权
    能够进行偏移补偿的数据驱动器和具有该偏移补偿的显示装置

    公开(公告)号：US07683897B2

    公开(公告)日：2010-03-23

    申请号：US11497996

    申请日：2006-08-02

    申请人： Kook-Chul Moon ,  Il-Gon Kim ,  Tae-Hyeong Park ,  Chul-Ho Kim ,  Cheol-Min Kim ,  Kee-Chan Park

    发明人： Kook-Chul Moon ,  Il-Gon Kim ,  Tae-Hyeong Park ,  Chul-Ho Kim ,  Cheol-Min Kim ,  Kee-Chan Park

    IPC分类号： G06F3/038

    CPC分类号： G09G3/3688 ,  G09G2320/0233 ,  H03F3/3022 ,  H03F3/45179 ,  H03F2200/516

    摘要： An amplifier includes a biasing section, first and second differential amplifying sections and an output section. The biasing section outputs first and second bias currents based on first and second power source voltages. The first differential amplifying section outputs a first amplified voltage based on the first bias current. The second differential amplifying section outputs a second amplified voltage based on the second bias current. The output section outputs the second power source voltage based on the first amplified voltage and the first power source voltage, and outputs the first power source voltage based on the second amplified voltage and the second power source voltage. Therefore, a variation of the threshold voltage is compensated to enhance display quality.

    摘要翻译： 放大器包括偏置部分，第一和第二差分放大部分和输出部分。 偏置部分基于第一和第二电源电压输出第一和第二偏置电流。 第一差分放大部分基于第一偏置电流输出第一放大电压。 第二差分放大部分基于第二偏置电流输出第二放大电压。 输出部分基于第一放大电压和第一电源电压输出第二电源电压，并且基于第二放大电压和第二电源电压输出第一电源电压。 因此，补偿阈值电压的变化以增强显示质量。

    Display device and driving method thereof
    7.
    发明申请
    Display device and driving method thereof 有权
    显示装置及其驱动方法

    公开(公告)号：US20060221662A1

    公开(公告)日：2006-10-05

    申请号：US11373671

    申请日：2006-03-09

    申请人： Kee-Chan Park ,  Ho-Suk Maeng ,  Seong-Il Park ,  Cheol-Min Kim ,  Chi-Woo Kim ,  Soong-Yong Joo ,  Il-Gon Kim

    发明人： Kee-Chan Park ,  Ho-Suk Maeng ,  Seong-Il Park ,  Cheol-Min Kim ,  Chi-Woo Kim ,  Soong-Yong Joo ,  Il-Gon Kim

    IPC分类号： G11C11/22

    CPC分类号： G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2320/043

    摘要： A display device includes a plurality of pixels, wherein each pixel includes: a light emitting element; a first capacitor connected between a first node and a second node; a driving transistor having an input terminal, an output terminal, and a control terminal connected to the second node where the driving transistor supplies a driving current to the light emitting element to emit light; a first switching unit supplying a first reference voltage to the driving transistor according to a first scanning signal and connecting the first node to a data voltage or the driving transistor; and a second switching unit supplying a driving voltage to the driving transistor according to a second scanning signal and connecting the first node to the data voltage. Accordingly, variations in threshold voltage of the driving transistor can be compensated for so that it is possible to display a uniform image.

    摘要翻译： 显示装置包括多个像素，其中每个像素包括：发光元件; 连接在第一节点和第二节点之间的第一电容器; 驱动晶体管，其具有输入端子，输出端子和连接到所述第二节点的控制端子，其中所述驱动晶体管向所述发光元件提供驱动电流以发光; 第一开关单元，根据第一扫描信号向驱动晶体管提供第一参考电压，并将第一节点连接到数据电压或驱动晶体管; 以及第二开关单元，其根据第二扫描信号向驱动晶体管提供驱动电压，并将第一节点连接到数据电压。 因此，可以补偿驱动晶体管的阈值电压的变化，使得可以显示均匀的图像。