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1. 发明授权

US07719497B2 Current feedback-type AMOLED where sense feedback is sent over the adjacent data line 有权
标题翻译：电流反馈型AMOLED，其中感测反馈通过相邻数据线发送
公开(公告)号：US07719497B2
公开(公告)日：2010-05-18
申请号：US11633984
申请日：2006-12-04
申请人： Gyu Hyeong Cho , Sang-kyung Kim , Young-suk Son , Yong-joon Jeon , Jin-yong Jeon , Gun-ho Lee
发明人： Gyu Hyeong Cho , Sang-kyung Kim , Young-suk Son , Yong-joon Jeon , Jin-yong Jeon , Gun-ho Lee
IPC分类号： G09G3/32
CPC分类号： G09G3/3241 , G09G3/3233 , G09G3/325 , G09G3/3283 , G09G2300/0408 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2320/0295 , G09G2320/043
摘要： A current feedback-type AMOLED driving circuit. The current feedback-type AMOLED driving circuit includes a plurality of pixel circuits each having a data terminal for receiving a pixel current command, and a sense terminal for transmitting pixel current to a driver Integrated Circuit (IC), and a plurality of data lines provided such that a single data line is provided for a single column formed by a plurality of pixel circuits, thus data terminals of the pixel circuits, forming the column, are connected to the data line. In the AMOLED driving circuit, two columns are paired, sense terminals of pixel circuits, forming a first column of the two columns, are connected to a data line for a second column, and sense terminals of pixel circuits, forming the second column, are connected to the data line for the first column. The AMOLED driving circuit is operated such that, when the first column is driven, the data line for the second column is used as a current feedback line for the first column, and when the second column is driven, the data line for the first column is used as a current feedback line for the second column. Accordingly, the number of pads of the driver IC is limited to one per column, and price competitiveness of the driver IC is improved.
摘要翻译：电流反馈型AMOLED驱动电路。电流反馈型AMOLED驱动电路包括多个像素电路，每个像素电路都具有用于接收像素电流命令的数据端子，以及用于向驱动器集成电路（IC）传输像素电流的检测端子，以及多条数据线使得为由多个像素电路形成的单列提供单个数据线，因此形成列的像素电路的数据端子连接到数据线。在AMOLED驱动电路中，两列成对，形成第二列的第一列的像素电路的检测端子连接到第二列的数据线，形成第二列的像素电路的检测端子是连接到第一列的数据行。操作AMOLED驱动电路，使得当驱动第一列时，将第二列的数据线用作第一列的电流反馈线，并且当第二列被驱动时，用于第一列的数据线用作第二列的电流反馈线。因此，驱动器IC的焊盘的数量被限制为每列一个，并且提高了驱动器IC的价格竞争力。

2. 发明授权

US07876292B2 Active matrix OLED driving circuit using current feedback 失效
标题翻译：有源矩阵OLED驱动电路采用电流反馈
公开(公告)号：US07876292B2
公开(公告)日：2011-01-25
申请号：US11543588
申请日：2006-10-04
申请人： Gyu-hyeong Cho , Jin-yong Jeon , Gun-ho Lee , Young-suk Son , Sang Kyung Kim
发明人： Gyu-hyeong Cho , Jin-yong Jeon , Gun-ho Lee , Young-suk Son , Sang Kyung Kim
IPC分类号： G09G3/36
CPC分类号： G09G3/3233 , G09G2300/0842 , G09G2320/0233 , G09G2320/0252 , G09G2320/0295 , G09G2320/043
摘要： An active matrix organic light emitting diode AMOLED driving circuit using current feedback that ensures the uniformity of brightness in pixels of a flat panel display and shortens the time required to input accurate current to respective pixels in the driving circuit.The prevent invention provides an AMOLED driving circuit using current feedback, comprising: a current digital-to-analog converter outputting a current corresponding to input digital data; a first differential amplifier connected to the current digital-to-analog converter and controlling the input data current and a driving current of a driving transistor of a pixel circuit to be identical to each other; a current mirror mirroring driving current of an organic light emitting diode of the pixel circuit to an input side of the first differential amplifier; and a second differential amplifier coupled to the current mirror and controlling charge and discharge speeds of parasitic capacitance of the pixel circuit.
摘要翻译：使用电流反馈的有源矩阵有机发光二极管AMOLED驱动电路，其确保平板显示器的像素中亮度的均匀性，并缩短将精确电流输入到驱动电路中的各个像素所需的时间。本发明提供一种使用电流反馈的AMOLED驱动电路，包括：输出与输入数字数据相对应的电流的当前数模转换器; 连接到当前数模转换器并控制像素电路的驱动晶体管的输入数据电流和驱动电流彼此相同的第一差分放大器; 将像素电路的有机发光二极管的驱动电流的电流镜反射到第一差分放大器的输入侧; 以及耦合到电流镜并且控制像素电路的寄生电容的充电和放电速度的第二差分放大器。

3. 发明申请

US20070075939A1 Active matrix OLED driving circuit using current feedback 失效
标题翻译：有源矩阵OLED驱动电路采用电流反馈
公开(公告)号：US20070075939A1
公开(公告)日：2007-04-05
申请号：US11543588
申请日：2006-10-04
申请人： Gyu-hyeong Cho , Jin-yong Jeon , Gun-ho Lee , Young-suk Son , Sang Kim
发明人： Gyu-hyeong Cho , Jin-yong Jeon , Gun-ho Lee , Young-suk Son , Sang Kim
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G2300/0842 , G09G2320/0233 , G09G2320/0252 , G09G2320/0295 , G09G2320/043
摘要： An active matrix organic light emitting diode AMOLED driving circuit using current feedback that ensures the uniformity of brightness in pixels of a flat panel display and shortens the time required to input accurate current to respective pixels in the driving circuit. The prevent invention provides an AMOLED driving circuit using current feedback, comprising: a current digital-to-analog converter outputting a current corresponding to input digital data; a first differential amplifier connected to the current digital-to-analog converter and controlling the input data current and a driving current of a driving transistor of a pixel circuit to be identical to each other; a current mirror mirroring driving current of an organic light emitting diode of the pixel circuit to an input side of the first differential amplifier; and a second differential amplifier coupled to the current mirror and controlling charge and discharge speeds of parasitic capacitance of the pixel circuit.
摘要翻译：使用电流反馈的有源矩阵有机发光二极管AMOLED驱动电路，其确保平板显示器的像素中亮度的均匀性，并缩短将精确电流输入到驱动电路中的各个像素所需的时间。本发明提供一种使用电流反馈的AMOLED驱动电路，包括：输出与输入数字数据相对应的电流的当前数模转换器; 连接到当前数模转换器并控制像素电路的驱动晶体管的输入数据电流和驱动电流彼此相同的第一差分放大器; 将像素电路的有机发光二极管的驱动电流的电流镜反射到第一差分放大器的输入侧; 以及耦合到电流镜并且控制像素电路的寄生电容的充电和放电速度的第二差分放大器。

4. 发明申请

US20070139311A1 Current feedback-type amoled driving circuit 有权
标题翻译：电流反馈型amoled驱动电路
公开(公告)号：US20070139311A1
公开(公告)日：2007-06-21
申请号：US11633984
申请日：2006-12-04
申请人： Gyu Cho , Sang-kyung Kim , Young-suk Son , Yong-joon Jeon , Jin-yong Jeon , Gun-ho Lee
发明人： Gyu Cho , Sang-kyung Kim , Young-suk Son , Yong-joon Jeon , Jin-yong Jeon , Gun-ho Lee
IPC分类号： G09G3/30
CPC分类号： G09G3/3241 , G09G3/3233 , G09G3/325 , G09G3/3283 , G09G2300/0408 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2320/0295 , G09G2320/043
摘要： A current feedback-type AMOLED driving circuit. The current feedback-type AMOLED driving circuit includes a plurality of pixel circuits each having a data terminal for receiving a pixel current command, and a sense terminal for transmitting pixel current to a driver Integrated Circuit (IC), and a plurality of data lines provided such that a single data line is provided for a single column formed by a plurality of pixel circuits, thus data terminals of the pixel circuits, forming the column, are connected to the data line. In the AMOLED driving circuit, two columns are paired, sense terminals of pixel circuits, forming a first column of the two columns, are connected to a data line for a second column, and sense terminals of pixel circuits, forming the second column, are connected to the data line for the first column. The AMOLED driving circuit is operated such that, when the first column is driven, the data line for the second column is used as a current feedback line for the first column, and when the second column is driven, the data line for the first column is used as a current feedback line for the second column. Accordingly, the number of pads of the driver IC is limited to one per column, and price competitiveness of the driver IC is improved.
摘要翻译：电流反馈型AMOLED驱动电路。电流反馈型AMOLED驱动电路包括多个像素电路，每个像素电路都具有用于接收像素电流命令的数据端子，以及用于向驱动器集成电路（IC）传输像素电流的检测端子，以及多条数据线使得为由多个像素电路形成的单列提供单个数据线，因此形成列的像素电路的数据端子连接到数据线。在AMOLED驱动电路中，两列成对，形成第二列的第一列的像素电路的检测端子连接到第二列的数据线，形成第二列的像素电路的检测端子是连接到第一列的数据行。操作AMOLED驱动电路，使得当驱动第一列时，将第二列的数据线用作第一列的电流反馈线，并且当第二列被驱动时，用于第一列的数据线用作第二列的电流反馈线。因此，驱动器IC的焊盘的数量被限制为每列一个，并且提高了驱动器IC的价格竞争力。

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