公开(公告)号：US06693616B2

公开(公告)日：2004-02-17

申请号：US09782260

申请日：2001-02-14

申请人： Jun Koyama ,  Munehiro Azami ,  Yasushi Kubota ,  Hajime Washio

发明人： Jun Koyama ,  Munehiro Azami ,  Yasushi Kubota ,  Hajime Washio

IPC分类号： G09G336

CPC分类号： G09G3/3688 ,  G09G2310/0259 ,  G09G2310/027 ,  G09G2310/0297

摘要： The surface area occupied by a digital type signal line driver circuit in an image display device is large, and this is an impediment to reducing the size of the display device. A memory circuit within a signal line driver circuit is made common among n signal lines (where n is a natural number greater than or equal to 2). One horizontal scan period is divided into n divisions, and all signal lines can be driven by performing processing with respect to signal lines differing by memory circuit and D/A converter circuit, respectively, during the period of each division. It thus becomes possible to make 1/n as many memory circuits and D/A conversion circuits within the signal line driver circuit as in a conventional example.

摘要翻译： 图像显示装置中的数字式信号线驱动电路所占据的表面积较大，这是减小显示装置尺寸的障碍。 信号线驱动电路内的存储电路在n条信号线（其中n为大于或等于2的自然数）之间是共同的。 一个水平扫描周期被划分为n个分区，并且在每个划分期间分别通过对与存储电路和D / A转换器电路不同的信号线执行处理来驱动所有的信号线。 因此，与现有例一样，能够使信号线驱动电路内的1 / n的存储电路和D / A转换电路成为可能。

公开(公告)号：US08237179B2

公开(公告)日：2012-08-07

申请号：US13241351

申请日：2011-09-23

申请人： Shunpei Yamazaki ,  Jun Koyama ,  Tatsuya Arao ,  Munehiro Azami

发明人： Shunpei Yamazaki ,  Jun Koyama ,  Tatsuya Arao ,  Munehiro Azami

IPC分类号： H01L33/00

CPC分类号： H01L27/3265 ,  H01L27/124 ,  H01L27/1255 ,  H01L27/3246 ,  H01L27/3258 ,  H01L27/3262 ,  H01L27/3276 ,  H01L29/78633

摘要： A light emitting device is provided which can prevent a change in gate voltage due to leakage or other causes and at the same time can prevent the aperture ratio from lowering. A capacitor storage is formed from a connection wiring line, an insulating film, and a capacitance wiring line. The connection wiring line is formed over a gate electrode and an active layer of a TFT of a pixel, and is connected to the active layer. The insulating film is formed on the connection wiring line. The capacitance wiring line is formed on the insulating film. This structure enables the capacitor storage to overlap the TFT, thereby increasing the capacity of the capacitor storage while keeping the aperture ratio from lowering. Accordingly, a change in gate voltage due to leakage or other causes can be avoided to prevent a change in luminance of an OLED and flickering of screen in analog driving.

摘要翻译： 提供一种可以防止由于泄漏或其它原因引起的栅极电压变化并且同时可以防止开口率降低的发光器件。 电容器存储器由连接布线，绝缘膜和电容布线形成。 连接布线形成在栅电极和像素的TFT的有源层上，并与有源层连接。 绝缘膜形成在连接布线上。 电容布线形成在绝缘膜上。 这种结构使得电容器存储与TFT重叠，从而在保持开口率降低的同时增加电容器存储的容量。 因此，可以避免由于泄漏或其他原因导致的栅极电压的变化，以防止OLED的亮度变化和模拟驱动中屏幕的闪烁。

公开(公告)号：US07550790B2

公开(公告)日：2009-06-23

申请号：US11709072

申请日：2007-02-22

申请人： Jun Koyama ,  Mitsuaki Osame ,  Yukio Tanaka ,  Munehiro Azami ,  Naoko Yano ,  Shou Nagao

发明人： Jun Koyama ,  Mitsuaki Osame ,  Yukio Tanaka ,  Munehiro Azami ,  Naoko Yano ,  Shou Nagao

IPC分类号： H01L29/74

CPC分类号： H01L27/1214 ,  G09G3/20 ,  G09G3/2011 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2310/0218 ,  G09G2310/027 ,  G09G2310/0297 ,  H01L21/84 ,  H01L29/04 ,  H03K17/6872 ,  H03K17/693 ,  H03M1/682 ,  H03M1/765

摘要： A D/A conversion circuit with a small area is provided. In the D/A conversion circuit, according to a digital signal transmitted from address lines of an address decoder, one of four gradation voltage lines is selected. A circuit including two N-channel TFTs is connected in series to a circuit including two P-channel TFT, and a circuit including the circuits connected in series to each other is connected in parallel to each of the gradation voltage lines. Further, an arrangement of the circuit including the two N-channel TFTs and the circuit including the two P-channel TFTs is reversed for every gradation voltage line. By this, the crossings of wiring lines in the D/A conversion circuit becomes small and the area can be made small.

公开(公告)号：US07242024B2

公开(公告)日：2007-07-10

申请号：US10986931

申请日：2004-11-15

申请人： Shunpei Yamazaki ,  Jun Koyama ,  Tatsuya Arao ,  Munehiro Azami

发明人： Shunpei Yamazaki ,  Jun Koyama ,  Tatsuya Arao ,  Munehiro Azami

IPC分类号： H01L27/15

CPC分类号： H01L27/3265 ,  H01L27/124 ,  H01L27/1255 ,  H01L27/3246 ,  H01L27/3258 ,  H01L27/3262 ,  H01L27/3276 ,  H01L29/78633

摘要： A light emitting device is provided which can prevent a change in gate voltage due to leakage or other causes and at the same time can prevent the aperture ratio from lowering. A capacitor storage is formed from a connection wiring line, an insulating film, and a capacitance wiring line. The connection wiring line is formed over a gate electrode and an active layer of a TFT of a pixel, and is connected to the active layer. The insulating film is formed on the connection wiring line. The capacitance wiring line is formed on the insulating film. This structure enables the capacitor storage to overlap the TFT, thereby increasing the capacity of the capacitor storage while keeping the aperture ratio from lowering. Accordingly, a change in gate voltage due to leakage or other causes can be avoided to prevent a change in luminance of an OLED and flickering of screen in analog driving.

摘要翻译： 提供一种可以防止由于泄漏或其它原因引起的栅极电压变化并且同时可以防止开口率降低的发光器件。 电容器存储器由连接布线，绝缘膜和电容布线形成。 连接布线形成在栅电极和像素的TFT的有源层上，并与有源层连接。 绝缘膜形成在连接布线上。 电容布线形成在绝缘膜上。 这种结构使得电容器存储与TFT重叠，从而在保持开口率降低的同时增加电容器存储的容量。 因此，可以避免由于泄漏或其他原因导致的栅极电压的变化，以防止OLED的亮度变化和模拟驱动中屏幕的闪烁。

公开(公告)号：US20050206598A1

公开(公告)日：2005-09-22

申请号：US11115263

申请日：2005-04-27

申请人： Shunpei Yamazaki ,  Jun Koyama ,  Masaaki Hiroki ,  Munehiro Azami ,  Mitsuaki Osame ,  Yutaka Shionoiri ,  Shou Nagao

发明人： Shunpei Yamazaki ,  Jun Koyama ,  Masaaki Hiroki ,  Munehiro Azami ,  Mitsuaki Osame ,  Yutaka Shionoiri ,  Shou Nagao

IPC分类号： G09G3/36

CPC分类号： G09G3/3648 ,  G09G3/3651 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2320/0271 ,  G09G2320/0276 ,  G09G2320/0285

摘要： To provide a display device capable of displaying a good quality image. According to the present invention, there is provided a display device comprising: a display panel composed of a pixel portion in which a plurality of TFTs are arranged in matrix, a source driver, and a gate driver; an image signal processing circuit for processing an image signal input from an external; and a control circuit for controlling the display panel and the image signal processing circuit, characterized in that the image signal processing circuit corrects the image signal on the basis of a correction table and feeds the display panel with the corrected image signal.

公开(公告)号：US08546825B2

公开(公告)日：2013-10-01

申请号：US13555292

申请日：2012-07-23

申请人： Shunpei Yamazaki ,  Jun Koyama ,  Tatsuya Arao ,  Munehiro Azami

发明人： Shunpei Yamazaki ,  Jun Koyama ,  Tatsuya Arao ,  Munehiro Azami

IPC分类号： H01L33/00

CPC分类号： H01L27/3265 ,  H01L27/124 ,  H01L27/1255 ,  H01L27/3246 ,  H01L27/3258 ,  H01L27/3262 ,  H01L27/3276 ,  H01L29/78633

摘要： A light emitting device is provided which can prevent a change in gate voltage due to leakage or other causes and at the same time can prevent the aperture ratio from lowering. A capacitor storage is formed from a connection wiring line, an insulating film, and a capacitance wiring line. The connection wiring line is formed over a gate electrode and an active layer of a TFT of a pixel, and is connected to the active layer. The insulating film is formed on the connection wiring line. The capacitance wiring line is formed on the insulating film. This structure enables the capacitor storage to overlap the TFT, thereby increasing the capacity of the capacitor storage while keeping the aperture ratio from lowering. Accordingly, a change in gate voltage due to leakage or other causes can be avoided to prevent a change in luminance of an OLED and flickering of screen in analog driving.

公开(公告)号：US20110006306A1

公开(公告)日：2011-01-13

申请号：US12879032

申请日：2010-09-10

申请人： Shunpei Yamazaki ,  Jun Koyama ,  Tatsuya Arao ,  Munehiro Azami

发明人： Shunpei Yamazaki ,  Jun Koyama ,  Tatsuya Arao ,  Munehiro Azami

IPC分类号： H01L33/00

CPC分类号： H01L27/3265 ,  H01L27/124 ,  H01L27/1255 ,  H01L27/3246 ,  H01L27/3258 ,  H01L27/3262 ,  H01L27/3276 ,  H01L29/78633

摘要： A light emitting device is provided which can prevent a change in gate voltage due to leakage or other causes and at the same time can prevent the aperture ratio from lowering. A capacitor storage is formed from a connection wiring line, an insulating film, and a capacitance wiring line. The connection wiring line is formed over a gate electrode and an active layer of a TFT of a pixel, and is connected to the active layer. The insulating film is formed on the connection wiring line. The capacitance wiring line is formed on the insulating film. This structure enables the capacitor storage to overlap the TFT, thereby increasing the capacity of the capacitor storage while keeping the aperture ratio from lowering. Accordingly, a change in gate voltage due to leakage or other causes can be avoided to prevent a change in luminance of an OLED and flickering of screen in analog driving.

摘要翻译： 提供一种可以防止由于泄漏或其它原因引起的栅极电压变化并且同时可以防止开口率降低的发光器件。 电容器存储器由连接布线，绝缘膜和电容布线形成。 连接布线形成在栅电极和像素的TFT的有源层上，并与有源层连接。 绝缘膜形成在连接布线上。 电容布线形成在绝缘膜上。 这种结构使得电容器存储与TFT重叠，从而在保持开口率降低的同时增加电容器存储的容量。 因此，可以避免由于泄漏或其他原因导致的栅极电压的变化，以防止OLED的亮度变化和模拟驱动中屏幕的闪烁。

公开(公告)号：US07301520B2

公开(公告)日：2007-11-27

申请号：US09777693

申请日：2001-02-07

申请人： Jun Koyama ,  Munehiro Azami

发明人： Jun Koyama ,  Munehiro Azami

IPC分类号： G09G3/36

CPC分类号： G09G3/30 ,  G09G3/3648 ,  G09G2300/0809 ,  G09G2310/0259 ,  G09G2310/027 ,  G09G2310/0297

摘要： There is provided an image display device operating in response to the input of digital picture signals, in which the occupied area of a signal line driver circuit thereof is reduced, and the parasitic capacitance and resistance of input transmission lines of the digital picture signals are reduced. The device includes both a unit for directly inputting the digital picture signals to shift registers and for performing series parallel conversion, and a unit for causing n (n is a natural number not less than 2) signal lines to jointly own storage circuits and D/A converter circuits in the signal line driver circuit. One horizontal scan period is divided into n periods, and the storage circuits and the D/A converter circuits perform a processing to signal lines different in each of the divided periods.

摘要翻译： 提供了响应于数字图像信号的输入而工作的图像显示装置，其中信号线驱动电路的占用面积减小，并且数字图像信号的输入传输线的寄生电容和电阻减小 。 该装置包括用于将数字图像信号直接输入到移位寄存器和用于进行串行并行转换的单元和用于使n（n是不小于2个的自然数）信号线的单元共同拥有存储电路和D / A转换器电路中的信号线驱动电路。 一个水平扫描周期被划分为n个周期，并且存储电路和D / A转换器电路执行用于在每个分割周期中发送不同信号的处理。

公开(公告)号：US06738005B2

公开(公告)日：2004-05-18

申请号：US10053656

申请日：2002-01-24

申请人： Jun Koyama ,  Mitsuaki Osame ,  Yukio Tanaka ,  Munehiro Azami ,  Naoko Yano ,  Shou Nagao

发明人： Jun Koyama ,  Mitsuaki Osame ,  Yukio Tanaka ,  Munehiro Azami ,  Naoko Yano ,  Shou Nagao

IPC分类号： H03M166

CPC分类号： H01L27/1214 ,  G09G3/20 ,  G09G3/2011 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2310/0218 ,  G09G2310/027 ,  G09G2310/0297 ,  H01L21/84 ,  H01L29/04 ,  H03K17/6872 ,  H03K17/693 ,  H03M1/682 ,  H03M1/765

摘要： A D/A conversion circuit with a small area is provided. In the D/A conversion circuit, according to a digital signal transmitted from address lines of an address decoder, one of four gradation voltage lines is selected. A circuit including two N-channel TFTs is connected in series to a circuit including two P-channel TFT, and a circuit including the circuits connected in series to each other is connected in parallel to each of the gradation voltage lines. Further, an arrangement of the circuit including the two N-channel TFTs and the circuit including the two P-channel TFTs is reversed for every gradation voltage line. By this, the crossings of wiring lines in the D/A conversion circuit becomes small and the area can be made small.

摘要翻译： 提供具有小面积的D / A转换电路。 在D / A转换电路中，根据从地址解码器的地址线发送的数字信号，选择四个灰度电压线中的一个。 包括两个N沟道TFT的电路串联连接到包括两个P沟道TFT的电路，并且包括彼此串联连接的电路的电路并联连接到每个灰度电压线。 此外，包括两个N沟道TFT的电路和包括两个P沟道TFT的电路的布置对于每个灰度电压线都是反向的。 由此，D / A转换电路中的布线的交叉变小，可以使面积变小。

公开(公告)号：US06597349B1

公开(公告)日：2003-07-22

申请号：US09162230

申请日：1998-09-29

申请人： Jun Koyama ,  Mitsuaki Osame ,  Munehiro Azami

发明人： Jun Koyama ,  Mitsuaki Osame ,  Munehiro Azami

IPC分类号： G09G500

CPC分类号： G09G3/3688 ,  G09G3/2011 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2310/0297

摘要： In a driving circuit of a digital gradation system semiconductor display device, one D/A conversion circuit 208 is provided for a plurality of source signal lines, and the respective source signal lines are driven in a time-division manner. By this, the number of the D/A conversion circuits 208 in the driving circuit can be decreased, and miniaturization of the semiconductor display device can be achieved.

摘要翻译： 在数字灰度系统半导体显示装置的驱动电路中，为多个源极信号线提供一个D / A转换电路208，并且以时分方式驱动各个源极信号线。 由此，可以减少驱动电路中的D / A转换电路208的数量，并且可以实现半导体显示装置的小型化。