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1. 发明申请

US20070273566A1 D/a Converter Circuit, Organic el Drive Circuit, and Oragnic el Display 有权
标题翻译： D / A转换器电路，有机EL驱动电路和Oragnic el Display
公开(公告)号：US20070273566A1
公开(公告)日：2007-11-29
申请号：US10594703
申请日：2005-03-28
申请人： Shinichi Abe , Jun Maede , Masanori Fujisawa , Akio Fujikawa
发明人： Shinichi Abe , Jun Maede , Masanori Fujisawa , Akio Fujikawa
IPC分类号： H03M1/74
CPC分类号： H03M1/68 , G09G3/3283 , G09G2310/027 , H03M1/745
摘要： [Problem] To provide a high precision D/A converter circuit capable of being driven with low voltage and restricting an area taken thereby when it is formed as an IC. [Means for Solving the Problem] A D/A converter circuit, which includes a first current mirror circuit having a plurality of output side transistors provided correspondingly to digits of data to be converted and generates an analog current by obtaining in at least one of the output side transistors a current corresponding to weight of digit of the data, comprises a second current mirror circuit connected on an upstream or down stream side of at least one of the output side transistors corresponding to lower digit of the data, wherein operating current ratio of the output side transistor of the second current mirror circuit with respect to an input side transistor thereof is set to n:1 (where n is a positive integer), wherein the analog current is generated by obtaining a current corresponding to weight of digit, which is smaller than 1, on the output side transistor of the second current mirror circuit.
摘要翻译： [问题]提供一种能够以低电压驱动的高精度D / A转换器电路，并且限制当其形成为IC时所占据的面积。用于解决问题的方法AD / A转换器电路包括具有多个输出侧晶体管的第一电流镜电路，该多个输出侧晶体管相应于要转换的数据的数字而被提供，并通过在输出中获得至少一个来产生模拟电流包括与数据的数字的重量相对应的电流的电流镜像电路，其连接在对应于数据的较低位的至少一个输出侧晶体管的上游侧或下游侧，其中，将第二电流镜电路的输出侧晶体管相对于其输入侧晶体管设置为n：1（其中n为正整数），其中通过获得与数字重量相对应的电流来产生模拟电流，小于1，在第二电流镜电路的输出侧晶体管上。

2. 发明授权

US07002303B2 Organic EL panel drive circuit and organic EL display device using the same drive circuit 有权
标题翻译：有机EL面板驱动电路和使用相同驱动电路的有机EL显示装置
公开(公告)号：US07002303B2
公开(公告)日：2006-02-21
申请号：US10868899
申请日：2004-06-17
申请人： Jun Maede , Shinichi Abe , Akio Fujikawa , Masanori Fujisawa
发明人： Jun Maede , Shinichi Abe , Akio Fujikawa , Masanori Fujisawa
IPC分类号： G09G3/10 , G09G3/30
CPC分类号： G09G3/3283 , G09G2310/027 , G09G2320/0233 , H01L27/3223 , H01L27/3244 , H01L27/3281
摘要： Dummy circuits, which are not operated, are provided in transistor blocks, which are positioned in outermost side portions of a drive circuit forming area of an IC. Physical property-related stress of unit transistors constituting D/A converter circuits or the D/A converter circuits and output stage current sources, which are formed in the transistor block in an area between the outermost transistor blocks, are relatively even, so that current mirror circuits constituting the D/A converter circuits can be constructed with unit transistors having good pairing characteristics.
摘要翻译：不操作的虚拟电路设置在位于IC的驱动电路形成区域的最外侧部分的晶体管块中。构成D / A转换器电路的单元晶体的物理性质相关应力或形成在最外层晶体管块之间的区域中的晶体管块中的D / A转换器电路和输出级电流源相对均匀，构成D / A转换器电路的镜像电路可以由具有良好配对特性的单位晶体管构成。

3. 发明授权

US07456767B2 D/A converter circuit, organic EL drive circuit, and organic EL display 有权
标题翻译： D / A转换器电路，有机EL驱动电路和有机EL显示器
公开(公告)号：US07456767B2
公开(公告)日：2008-11-25
申请号：US10594703
申请日：2005-03-28
申请人： Shinichi Abe , Jun Maede , Masanori Fujisawa , Akio Fujikawa
发明人： Shinichi Abe , Jun Maede , Masanori Fujisawa , Akio Fujikawa
IPC分类号： H03M1/00
CPC分类号： H03M1/68 , G09G3/3283 , G09G2310/027 , H03M1/745
摘要： A D/A converter circuit includes a first current mirror circuit and a second current mirror circuit. The first current mirror circuit has a plurality of output side transistors provided correspondingly to digits of data to be converted and generates en analog current by obtaining, in at least one of the output side transistors, a current corresponding to the weight of the digit of the data being converted. The second current mirror circuit is connected on an upstream or downstream side of the output side transistors and corresponding to a lower digit of the data. An analog current is generated with the second current mirror circuit by obtaining a current corresponding to a weight of a digit that is less than 1.
摘要翻译： D / A转换器电路包括第一电流镜电路和第二电流镜电路。第一电流镜电路具有与要转换的数据的数字对应地设置的多个输出侧晶体管，并且通过在输出侧晶体管中的至少一个晶体管中获得与数字的权重相对应的电流来产生模拟电流正在转换的数据。第二电流镜电路连接在输出侧晶体管的上游侧或下游侧，对应于数据的较低位。通过获得与小于1的数字的权重相对应的电流，通过第二电流镜电路产生模拟电流。

4. 发明授权

US07446737B2 Organic EL panel driving circuit, organic EL display device and organic EL panel driving circuit inspecting device 有权
标题翻译：有机EL面板驱动电路，有机EL显示装置和有机EL面板驱动电路检查装置
公开(公告)号：US07446737B2
公开(公告)日：2008-11-04
申请号：US10593781
申请日：2005-03-22
申请人： Jun Maede , Shinichi Abe , Akio Fujikawa , Masanori Fujisawa
发明人： Jun Maede , Shinichi Abe , Akio Fujikawa , Masanori Fujisawa
IPC分类号： G09G3/30 , G09G3/10
CPC分类号： G09G3/006 , G09G3/3216 , G09G3/3225 , G09G3/3283
摘要： The output current from respective output terminals of a drive circuit (driver IC) of an organic EL display panel to respective column pins or data lines is sequentially selected by sequentially scanning a plurality of switch circuits by a switch scan circuit. The resultant output currents are converted into voltage values by resistors selected by a selector. Further, the converted voltage values sequentially generated according to the scanning of the switch scan circuit are outputted externally of the IC.
摘要翻译：通过切换扫描电路依次扫描多个开关电路，依次选择从有机EL显示面板的驱动电路（驱动器IC）的各个输出端子到各个列引脚或数据线的输出电流。结果输出电流由选择器选择的电阻转换成电压值。此外，根据开关扫描电路的扫描顺序产生的转换电压值从IC的外部输出。

5. 发明申请

US20070152935A1 Organic el panel dirving circuit, organic el display device and organic el panel driving circuit inspecting device 有权
标题翻译：有机EL面板驱动电路，有机EL显示装置和有机EL面板驱动电路检测装置
公开(公告)号：US20070152935A1
公开(公告)日：2007-07-05
申请号：US10593781
申请日：2005-03-22
申请人： Jun Maede , Shinichi Abe , Akio Fujikawa , Masanori Fujisawa
发明人： Jun Maede , Shinichi Abe , Akio Fujikawa , Masanori Fujisawa
IPC分类号： G09G3/36
CPC分类号： G09G3/006 , G09G3/3216 , G09G3/3225 , G09G3/3283
摘要： [Problem]To provide a drive circuit (driver IC) of an organic EL display panel and an organic EL display device, which is capable of shortening a test time when a test on appropriateness of current values outputted to respective column pins of the drive circuit. [Means for Solving the Problem]Output currents outputted from respective output terminals of a drive circuit (driver IC) of an organic EL display panel to respective column pins or data lines are sequentially selected by sequentially scanning a plurality of switch circuits by a switch scan circuit, the output currents are converted into voltage values by resistors selected by a selector and the converted voltage values sequentially generated according to the scanning of the switch scan circuit are outputted externally of the IC.
摘要翻译： [问题]提供一种有机EL显示面板和有机EL显示装置的驱动电路（驱动器IC），其能够在对驱动电路的各列引脚输出的电流值的适当性进行测试时缩短测试时间。解决问题的方法从有机EL显示面板的驱动电路（驱动器IC）的各个输出端子输出到各个列引脚或数据线的输出电流通过切换扫描顺序地扫描多个开关电路来顺序选择电路通过选择器选择的电阻将输出电流转换为电压值，并根据开关扫描电路的扫描依次产生的转换电压值从IC外部输出。

6. 发明申请

US20050024300A1 Organic EL panel drive circuit and organic EL display device 有权
标题翻译：有机EL面板驱动电路和有机EL显示装置
公开(公告)号：US20050024300A1
公开(公告)日：2005-02-03
申请号：US10899082
申请日：2004-07-27
申请人： Shinichi Abe , Jun Maede , Akio Fujikawa
发明人： Shinichi Abe , Jun Maede , Akio Fujikawa
IPC分类号： G09G3/30 , G09G3/32 , H05B33/26
CPC分类号： G09G3/3216 , G09G3/3225 , G09G3/3283 , G09G2310/027 , G09G2320/0233
摘要： A transistor for detecting current generated by an output side transistor of a current mirror circuit of an organic EL panel drive circuit and a control circuit including a current driven input stage and an output stage for driving the input side transistor of the current mirror circuit are provided. The input stage of the control circuit receives the detected current and a certain reference current and the output stage of the control circuit generates a drive current, which corresponds to a difference between the detected current and the certain reference current and drives the input side transistor of the current mirror circuit. The control circuit controls the detected current in such a manner that it becomes equal to the reference current and the current distributed to terminal pins of an organic EL panel becomes the reference current or a current corresponding thereto.
摘要翻译：一种晶体管，用于检测由有机EL面板驱动电路的电流镜电路的输出侧晶体管产生的电流和包括电流驱动输入级和用于驱动电流镜电路的输入侧晶体管的输出级的控制电路。控制电路的输入级接收检测电流和一定的参考电流，控制电路的输出级产生对应于检测电流与特定参考电流之差的驱动电流，驱动输入侧晶体管电流镜电路。控制电路以与基准电流相等的方式控制检测电流，并且分配到有机EL面板的端子引脚的电流变为参考电流或与其对应的电流。

7. 发明授权

US07420529B2 Organic EL panel drive circuit and organic EL display device 有权
标题翻译：有机EL面板驱动电路和有机EL显示装置
公开(公告)号：US07420529B2
公开(公告)日：2008-09-02
申请号：US10899082
申请日：2004-07-27
申请人： Shinichi Abe , Jun Maede , Akio Fujikawa
发明人： Shinichi Abe , Jun Maede , Akio Fujikawa
IPC分类号： G09G3/30
CPC分类号： G09G3/3216 , G09G3/3225 , G09G3/3283 , G09G2310/027 , G09G2320/0233
摘要： A transistor for detecting current generated by an output side transistor of a current mirror circuit of an organic EL panel drive circuit and a control circuit including a current driven input stage and an output stage for driving the input side transistor of the current mirror circuit are provided. The input stage of the control circuit receives the detected current and a certain reference current and the output stage of the control circuit generates a drive current, which corresponds to a difference between the detected current and the certain reference current and drives the input side transistor of the current mirror circuit. The control circuit controls the detected current in such a manner that it becomes equal to the reference current and the current distributed to terminal pins of an organic EL panel becomes the reference current or a current corresponding thereto.
摘要翻译：一种晶体管，用于检测由有机EL面板驱动电路的电流镜电路的输出侧晶体管产生的电流和包括电流驱动输入级和用于驱动电流镜电路的输入侧晶体管的输出级的控制电路。控制电路的输入级接收检测电流和一定的参考电流，控制电路的输出级产生对应于检测电流与特定参考电流之差的驱动电流，驱动输入侧晶体管电流镜电路。控制电路以与基准电流相等的方式控制检测电流，并且分配到有机EL面板的端子引脚的电流变为参考电流或与其对应的电流。

8. 发明授权

US07321347B2 Organic EL element drive circuit and organic EL display device using the same drive circuit 有权
标题翻译：有机EL元件驱动电路和使用相同驱动电路的有机EL显示装置
公开(公告)号：US07321347B2
公开(公告)日：2008-01-22
申请号：US10822655
申请日：2004-04-13
申请人： Hiroshi Yaguma , Shinichi Abe , Jun Maede , Akio Fujikawa
发明人： Hiroshi Yaguma , Shinichi Abe , Jun Maede , Akio Fujikawa
IPC分类号： G09G3/30
CPC分类号： G09G3/3283 , G09G3/006 , G09G2310/0251 , G09G2310/027 , G09G2310/061 , G09G2320/0606 , G09G2320/0666
摘要： An organic EL drive circuit comprises a timing signal generator circuit for generating a plurality of second timing control signals sequentially delayed from a first timing control signal, a reset pulse generator circuit for selecting one of the plurality of the second timing control signals according to the predetermined data and generating a reset pulse having a front edge determined according to the selected second timing control signal and a rear edge determined by the first timing control signal and a switch circuit responsive to the reset pulse for connecting the terminal pins to a predetermined bias line to reset an organic EL element of an organic EL panel connected to the terminal pins. Luminance of the organic EL panel is regulated by regulating the display period according to the predetermined data.
摘要翻译：有机EL驱动电路包括：定时信号发生器电路，用于产生从第一定时控制信号顺序延迟的多个第二定时控制信号;复位脉冲发生器电路，用于根据预定的时间选择多个第二定时控制信号中的一个选择数据，并产生具有根据所选择的第二定时控制信号确定的前沿的复位脉冲和由第一定时控制信号确定的后沿和响应于复位脉冲的开关电路，用于将端子引脚连接到预定偏置线至复位连接到端子引脚的有机EL面板的有机EL元件。有机EL面板的亮度通过根据预定数据调节显示周期来调节。

9. 发明申请

US20050024299A1 Organic EL panel drive circuit and propriety test method for drive current of the same organic EL element drive circuit 有权
标题翻译：有机EL面板驱动电路和相同有机EL元件驱动电路的驱动电流的适当测试方法
公开(公告)号：US20050024299A1
公开(公告)日：2005-02-03
申请号：US10898994
申请日：2004-07-27
申请人： Shinichi Abe , Jun Maede , Akio Fujikawa
发明人： Shinichi Abe , Jun Maede , Akio Fujikawa
IPC分类号： G09G3/30 , G09G3/00 , G09G3/32 , H05B33/26
CPC分类号： G09G3/3275 , G09G3/006 , G09G2310/027
摘要： First analog currents are obtained through a plurality of switch circuits provided correspondingly to output pins of an organic EL drive circuit as drive currents or through output stage current sources. The first analog currents or the drive currents are compared by a comparator provided within the organic EL element drive circuit with a second analog current (reference current) or a current obtained by passing the second analog current through a current source corresponding to the output stage current source. A result of comparison is outputted externally of the organic EL element drive circuit. The drive currents are obtained sequentially at the output pins by turning the switch circuits ON one by one sequentially by a control circuit to sequentially obtain the result of comparison for the drive currents from the organic EL element drive circuit.
摘要翻译：通过与有机EL驱动电路的输出引脚相对应地设置的多个开关电路作为驱动电流或通过输出级电流源获得第一模拟电流。第一模拟电流或驱动电流由有机EL元件驱动电路内提供的比较器与第二模拟电流（参考电流）或通过使第二模拟电流通过对应于输出级电流的电流源而获得的电流进行比较资源。在有机EL元件驱动电路的外部输出比较结果。通过控制电路顺次地将开关电路依次接通，顺序地在输出引脚处获得驱动电流，以顺序地获得来自有机EL元件驱动电路的驱动电流的比较结果。

10. 发明申请

US20050067969A1 D/A converter circuit, organic EL drive circuit and organic EL display device 有权
标题翻译： D / A转换电路，有机EL驱动电路和有机EL显示装置
公开(公告)号：US20050067969A1
公开(公告)日：2005-03-31
申请号：US10948237
申请日：2004-09-24
申请人： Jun Maede , Shinichi Abe , Akio Fujikawa
发明人： Jun Maede , Shinichi Abe , Akio Fujikawa
IPC分类号： G09G3/30 , G09G3/32 , H01L27/04 , H03M1/74 , H05B33/00 , G09G3/10 , H03M1/66
CPC分类号： G09G3/3216 , G09G3/3283 , G09G2310/027 , G09G2320/0233 , H03M1/742
摘要： A current mirror type D/A converter circuit is constructed with transistor cells each including a MOS transistor, a gate region of which MOS transistor has folded stripe configuration in a plan view thereof, or a current flowing direction in a channel of which is a folded stripe in plan view.
摘要翻译：电流镜型D / A转换器电路由晶体管单元构成，每个晶体管单元包括MOS晶体管，其栅极区域，其MOS晶体管在其平面图中折叠条纹结构，或者其通道中的电流流动方向为折叠条纹在平面图。

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