公开(公告)号：US07932876B2

公开(公告)日：2011-04-26

申请号：US11174729

申请日：2005-07-06

申请人： Hiroaki Jo ,  Toshiyuki Kasai ,  Hiroshi Horiuchi ,  Takeshi Nozawa

发明人： Hiroaki Jo ,  Toshiyuki Kasai ,  Hiroshi Horiuchi ,  Takeshi Nozawa

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G2300/0417 ,  G09G2300/0842 ,  G09G2310/0254 ,  G09G2310/06 ,  G09G2320/0276 ,  G09G2320/043

摘要： An electro-optical device includes a plurality of pixel circuits each including a light-emitting element and a driving transistor for driving the light-emitting element; data lines that are connected to the plurality of pixel circuits and that supply data signals representing light-emitting gray-scale levels to the pixel circuits; and a data line driving circuit that supplies the data signals to the pixel circuits through the data lines. In addition, the data line driving circuit applies to each pixel circuit in a predetermined sequence a forward frame period supplying a data signal having a forward bias voltage for making the light-emitting element emit light and a backward frame period supplying a data signal having a backward bias voltage for making the light-emitting element not emit light, and drives each of the pixel circuits.

摘要翻译： 电光装置包括多个像素电路，每个像素电路包括用于驱动发光元件的发光元件和驱动晶体管; 数据线，其连接到所述多个像素电路，并将表示发光灰度级的数据信号提供给所述像素电路; 以及通过数据线将数据信号提供给像素电路的数据线驱动电路。 此外，数据线驱动电路以预定顺序应用于每个像素电路，前馈帧周期提供具有用于使发光元件发光的正偏压的数据信号，以及提供具有发光元件的数据信号的后帧周期 用于使发光元件不发光的反向偏置电压，并驱动每个像素电路。

公开(公告)号：US20050057191A1

公开(公告)日：2005-03-17

申请号：US10916605

申请日：2004-08-12

申请人： Hiroaki Jo ,  Hiroshi Horiuchi ,  Toshiyuki Kasai

发明人： Hiroaki Jo ,  Hiroshi Horiuchi ,  Toshiyuki Kasai

IPC分类号： H01L51/50 ,  G02F1/133 ,  G09G3/20 ,  G09G3/30 ,  G09G3/32 ,  G09G3/36 ,  H05B33/14 ,  H05B37/02 ,  H05B39/04

CPC分类号： G09G3/3233 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0221 ,  G09G2320/029 ,  G09G2320/0626

摘要： To provide an electro-optical device, a driving method therefor, and an electronic apparatus which can accurately control the brightness of electro-optical elements in accordance with the signal level of a data signal. A brightness detection circuit 15 is provided which samples power-supply current Io every time one scan line is selected and which converts the power-supply current Io into a digital voltage signal DS having a digital value corresponding to the power-supply current Io. A light-emission-period control circuit 16 generates light-emission-period control signals H1 to Hn in accordance with a light-emission-period adjusting signal F corresponding to the digital voltage signal DS and outputs the light-emission-period control signals H1 to Hn to corresponding control-signal supply lines G1 to Gn. Further, light-emission-period control transistors of the pixels 20 which are connected to the corresponding control-signal supply lines G1 to Gn are on/off controlled, thereby controlling the light-emission period of the electro-optical elements.

摘要翻译： 提供一种电光装置及其驱动方法，以及能够根据数据信号的信号电平精确地控制电光元件的亮度的电子设备。 提供了每当选择一条扫描线时对电源电流Io进行采样并将电源电流Io转换为具有与电源电流Io对应的数字值的数字电压信号DS的亮度检测电路15。 发光周期控制电路16根据与数字电压信号DS对应的发光周期调整信号F来生成发光周期控制信号H1〜Hn，并输出发光周期控制信号H1 到Hn到相应的控制信号供给线G1到Gn。 此外，连接到相应的控制信号供给线G1至Gn的像素20的发光周期控制晶体管被开/关控制，从而控制电光元件的发光周期。

公开(公告)号：US07692611B2

公开(公告)日：2010-04-06

申请号：US10916605

申请日：2004-08-12

申请人： Hiroaki Jo ,  Hiroshi Horiuchi ,  Toshiyuki Kasai

发明人： Hiroaki Jo ,  Hiroshi Horiuchi ,  Toshiyuki Kasai

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0221 ,  G09G2320/029 ,  G09G2320/0626

摘要： To provide an electro-optical device, a driving method therefor, and an electronic apparatus which can accurately control the brightness of electro-optical elements in accordance with the signal level of a data signal. A brightness detection circuit 15 is provided which samples power-supply current Io every time one scan line is selected and which converts the power-supply current Io into a digital voltage signal DS having a digital value corresponding to the power-supply current Io. A light-emission-period control circuit 16 generates light-emission-period control signals H1 to Hn in accordance with a light-emission-period adjusting signal F corresponding to the digital voltage signal DS and outputs the light-emission-period control signals H1 to Hn to corresponding control-signal supply lines G1 to Gn. Further, light-emission-period control transistors of the pixels 20 which are connected to the corresponding control-signal supply lines G1 to Gn are on/off controlled, thereby controlling the light-emission period of the electro-optical elements.

摘要翻译： 提供一种电光装置及其驱动方法，以及能够根据数据信号的信号电平精确地控制电光元件的亮度的电子设备。 提供了每当选择一条扫描线时对电源电流Io进行采样并将电源电流Io转换为具有与电源电流Io对应的数字值的数字电压信号DS的亮度检测电路15。 发光周期控制电路16根据与数字电压信号DS对应的发光周期调整信号F来生成发光周期控制信号H1〜Hn，并输出发光周期控制信号H1 到Hn到相应的控制信号供给线G1到Gn。 此外，连接到相应的控制信号供给线G1至Gn的像素20的发光周期控制晶体管被开/关控制，从而控制电光元件的发光周期。

公开(公告)号：US07375711B2

公开(公告)日：2008-05-20

申请号：US10885771

申请日：2004-07-08

申请人： Hiroshi Horiuchi ,  Hiroaki Jo ,  Toshiyuki Kasai

发明人： Hiroshi Horiuchi ,  Hiroaki Jo ,  Toshiyuki Kasai

IPC分类号： G09G3/36

CPC分类号： G09G3/3233 ,  G09G3/20 ,  G09G5/39 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0271 ,  G09G2320/0626 ,  G09G2330/025 ,  G09G2360/16 ,  G09G2360/18

摘要： To provide a method for manufacturing an electro-optical device that is capable of controlling more smoothly brightness as compared with a control in every one frame and preventing large current from flowing when switching frames in a peak brightness control, a method of driving the same, and an electronic apparatus. A grayscale data average value operation unit 33 performs, for each line, an average value calculation of grayscale levels of images corresponding to images of an one-frame-length and outputs, based on average value for the one frame-length, mode signals M1 to M4 for brightness control in each line. A driver input data converter 34 rewrites, based on the mode signals M1 to M4 from the grayscale data average value operation unit 33, grayscale data HD for one line among grayscale data from a frame memory 31 into grayscale data DD. The driver input data converter 34 outputs grayscale data DD which is image data for the one frame-length and whose brightness is adjusted in a signal generating circuit.

摘要翻译： 为了提供一种制造电光装置的方法，其能够在每一帧中控制更平稳的亮度，并且在峰值亮度控制中切换帧时防止大的电流流动，其驱动方法， 和电子设备。 灰度数据平均值操作单元33针对每行执行与一帧长度的图像相对应的图像的灰度级的平均值计算，并且基于一帧长度的模式信号M的平均值 1至M 4用于每行中的亮度控制。 驱动器输入数据转换器34根据来自灰阶数据平均值运算部33的模式信号M 1〜M 4将从帧存储器31的灰度数据中的一行的灰阶数据HD重写为灰度级数据DD。 驱动器输入数据转换器34输出作为一帧长度的图像数据并且其亮度在信号生成电路中被调整的灰度数据DD。

公开(公告)号：US20060092185A1

公开(公告)日：2006-05-04

申请号：US11174729

申请日：2005-07-06

申请人： Hiroaki Jo ,  Toshiyuki Kasai ,  Hiroshi Horiuchi ,  Takeshi Nozawa

发明人： Hiroaki Jo ,  Toshiyuki Kasai ,  Hiroshi Horiuchi ,  Takeshi Nozawa

IPC分类号： G09G5/10

CPC分类号： G09G3/3233 ,  G09G2300/0417 ,  G09G2300/0842 ,  G09G2310/0254 ,  G09G2310/06 ,  G09G2320/0276 ,  G09G2320/043

摘要： An electro-optical device includes a plurality of pixel circuits each including a light-emitting element and a driving transistor for driving the light-emitting element; data lines that are connected to the plurality of pixel circuits and that supply data signals representing light-emitting gray-scale levels to the pixel circuits; and a data line driving circuit that supplies the data signals to the pixel circuits through the data lines. In addition, the data line driving circuit applies to each pixel circuit in a predetermined sequence a forward frame period supplying a data signal having a forward bias voltage for making the light-emitting element emit light and a backward frame period supplying a data signal having a backward bias voltage for making the light-emitting element not emit light, and drives each of the pixel circuits.

摘要翻译： 电光装置包括多个像素电路，每个像素电路包括用于驱动发光元件的发光元件和驱动晶体管; 数据线，其连接到所述多个像素电路，并将表示发光灰度级的数据信号提供给所述像素电路; 以及通过数据线将数据信号提供给像素电路的数据线驱动电路。 此外，数据线驱动电路以预定顺序应用于每个像素电路，前馈帧周期提供具有用于使发光元件发光的正偏压的数据信号，以及提供具有发光元件的数据信号的后帧周期 用于使发光元件不发光的反向偏置电压，并驱动每个像素电路。

公开(公告)号：US20060066538A1

公开(公告)日：2006-03-30

申请号：US11179744

申请日：2005-07-13

申请人： Toshiyuki Kasai ,  Hiroaki Jo ,  Takeshi Nozawa ,  Hiroshi Horiuchi

发明人： Toshiyuki Kasai ,  Hiroaki Jo ,  Takeshi Nozawa ,  Hiroshi Horiuchi

IPC分类号： G09G3/30

CPC分类号： G09G3/325 ,  G09G3/2044 ,  G09G3/2059 ,  G09G3/22 ,  G09G3/3283 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/027 ,  G09G2320/0633 ,  G09G2320/0666 ,  G09G2330/02 ,  G09G2360/144

摘要： A data line driving circuit connected to data lines includes a bit shift unit that outputs input digital data composed of a plurality of bits for defining the brightness of pixels or bit-shifts the plurality of bits to lower levels to output them, based on a control signal, and a supply unit that supplies the output digital data of the bit shift unit to a D/A conversion unit. The D/A conversion unit supplies gray-scale signals obtained by D/A converting the output digital data of the supply unit to the data lines.

摘要翻译： 连接到数据线的数据线驱动电路包括位移单元，其输出由用于定义像素的亮度的多个位组成的输入数字数据，或者将多个位进行位移移位到较低的电平以输出它们，以基于控制 信号和供给单元，其将位移单元的输出数字数据提供给D / A转换单元。 D / A转换单元将通过D / A获得的灰度信号提供给供给单元的输出数字数据到数据线。

公开(公告)号：US20060066906A1

公开(公告)日：2006-03-30

申请号：US11179551

申请日：2005-07-13

申请人： Toshiyuki Kasai ,  Hiroaki Jo ,  Takeshi Nozawa ,  Hiroshi Horiuchi

发明人： Toshiyuki Kasai ,  Hiroaki Jo ,  Takeshi Nozawa ,  Hiroshi Horiuchi

IPC分类号： H04N1/40

CPC分类号： G09G3/3233 ,  G09G3/2014 ,  G09G3/325 ,  G09G3/3283 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2310/027 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2340/0428

摘要： A signal processing unit that generates data signals for controlling gray-scale levels of electro-optical elements includes a first D/A conversion unit that generates gray-scale signals from gray-scale data for designating the gray-scale levels of the electro-optical elements; a storage unit that stores correction data indicating correction values with respect to the gray-scale signals; a second D/A conversion unit that has resolution different from that of the first D/A conversion unit, and that generates correction signals from the correction data stored in the storage unit; and a synthesizing unit that synthesizes the gray-scale signals generated by the first D/A conversion unit with the correction signals generated by the second D/A conversion unit to generate the data signals.

公开(公告)号：US08094097B2

公开(公告)日：2012-01-10

申请号：US11179744

申请日：2005-07-13

申请人： Toshiyuki Kasai ,  Hiroaki Jo ,  Takeshi Nozawa ,  Hiroshi Horiuchi

发明人： Toshiyuki Kasai ,  Hiroaki Jo ,  Takeshi Nozawa ,  Hiroshi Horiuchi

IPC分类号： G09G3/30

CPC分类号： G09G3/325 ,  G09G3/2044 ,  G09G3/2059 ,  G09G3/22 ,  G09G3/3283 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/027 ,  G09G2320/0633 ,  G09G2320/0666 ,  G09G2330/02 ,  G09G2360/144

摘要： A data line driving circuit connected to data lines includes a bit shift unit that outputs input digital data composed of a plurality of bits for defining the brightness of pixels or bit-shifts the plurality of bits to lower levels to output them, based on a control signal, and a supply unit that supplies the output digital data of the bit shift unit to a D/A conversion unit. The D/A conversion unit supplies gray-scale signals obtained by D/A converting the output digital data of the supply unit to the data lines.

摘要翻译： 连接到数据线的数据线驱动电路包括位移单元，其输出由用于定义像素的亮度的多个位组成的输入数字数据，或者将多个位进行位移移位到较低的电平以输出它们，以基于控制 信号和供给单元，其将位移单元的输出数字数据提供给D / A转换单元。 D / A转换单元将通过D / A获得的灰度信号提供给供给单元的输出数字数据到数据线。

公开(公告)号：US20090033687A1

公开(公告)日：2009-02-05

申请号：US12232714

申请日：2008-09-23

申请人： Toshiyuki Kasai ,  Hiroaki Jo ,  Takeshi Nozawa ,  Hiroshi Horiuchi

发明人： Toshiyuki Kasai ,  Hiroaki Jo ,  Takeshi Nozawa ,  Hiroshi Horiuchi

IPC分类号： G09G5/10 ,  G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/2014 ,  G09G3/325 ,  G09G3/3283 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2310/027 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2340/0428

摘要： A signal processing unit that generates data signals for controlling gray-scale levels of electro-optical elements includes a first D/A conversion unit that generates gray-scale signals from gray-scale data for designating the gray-scale levels of the electro-optical elements; a storage unit that stores correction data indicating correction values with respect to the gray-scale signals; a second D/A conversion unit that has resolution different from that of the first D/A conversion unit, and that generates correction signals from the correction data stored in the storage unit; and a synthesizing unit that synthesizes the gray-scale signals generated by the first D/A conversion unit with the correction signals generated by the second D/A conversion unit to generate the data signals.

摘要翻译： 产生用于控制电光元件的灰度级的数据信号的信号处理单元包括：第一D / A转换单元，用于从用于指定电光学的灰度级的灰度数据生成灰度信号 元素 存储单元，存储指示关于灰度信号的校正值的校正数据; 第二D / A转换单元，其具有与第一D / A转换单元的分辨率不同的分辨率，并且从存储在存储单元中的校正数据产生校正信号; 以及合成单元，其将由第一D / A转换单元生成的灰度信号与由第二D / A转换单元产生的校正信号合成，以产生数据信号。

公开(公告)号：US07443540B2

公开(公告)日：2008-10-28

申请号：US11179551

申请日：2005-07-13

申请人： Toshiyuki Kasai ,  Hiroaki Jo ,  Takeshi Nozawa ,  Hiroshi Horiuchi

发明人： Toshiyuki Kasai ,  Hiroaki Jo ,  Takeshi Nozawa ,  Hiroshi Horiuchi

IPC分类号： H04N1/40 ,  H04N1/46

CPC分类号： G09G3/3233 ,  G09G3/2014 ,  G09G3/325 ,  G09G3/3283 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2310/027 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2340/0428

摘要： A signal processing unit that generates data signals for controlling gray-scale levels of electro-optical elements includes a first D/A conversion unit that generates gray-scale signals from gray-scale data for designating the gray-scale levels of the electro-optical elements; a storage unit that stores correction data indicating correction values with respect to the gray-scale signals; a second D/A conversion unit that has resolution different from that of the first D/A conversion unit, and that generates correction signals from the correction data stored in the storage unit; and a synthesizing unit that synthesizes the gray-scale signals generated by the first D/A conversion unit with the correction signals generated by the second D/A conversion unit to generate the data signals.

摘要翻译： 产生用于控制电光元件的灰度级的数据信号的信号处理单元包括：第一D / A转换单元，用于从用于指定电光学的灰度级的灰度数据生成灰度信号 元素 存储单元，存储指示关于灰度信号的校正值的校正数据; 第二D / A转换单元，其具有与第一D / A转换单元的分辨率不同的分辨率，并且从存储在存储单元中的校正数据产生校正信号; 以及合成单元，其将由第一D / A转换单元生成的灰度信号与由第二D / A转换单元产生的校正信号合成，以产生数据信号。