公开(公告)号：US20120105502A1

公开(公告)日：2012-05-03

申请号：US13282581

申请日：2011-10-27

申请人： Junichi YOKOYAMA ,  Masami Iseki ,  Fujio Kawano

发明人： Junichi YOKOYAMA ,  Masami Iseki ,  Fujio Kawano

IPC分类号： G09G5/10

CPC分类号： G09G3/20 ,  G09G3/30 ,  G09G2320/0242 ,  G09G2320/0285 ,  G09G2320/0693

摘要： Provided is an image display device capable of dynamically controlling the D-V characteristics of a display panel while suppressing fluctuation in characteristic for each display panel. The display panel has a panel display portion including a red pixel, a green pixel, and a blue pixel. A storage unit stores V-L characteristic data measured in advance of RGB. A D-L calculation unit calculates D-L characteristic data of RGB based on the display setting values stored in a register. A D-V calculation unit calculates D-V characteristic data of RGB based on the V-L characteristic data stored in the storage unit and the D-L characteristic data calculated by the D-L calculation unit. A DAC generates a driving voltage corresponding to a video signal input from a timing controller based on the D-V characteristic data calculated by the D-V calculation unit and applies the driving voltage to each pixel.

摘要翻译： 提供了能够在抑制每个显示面板的特性波动的同时动态地控制显示面板的D-V特性的图像显示装置。 显示面板具有包括红色像素，绿色像素和蓝色像素的面板显示部分。 存储单元存储在RGB之前测量的V-L特性数据。 D-L计算单元根据存储在寄存器中的显示设定值来计算RGB的D-L特性数据。 D-V计算单元基于存储在存储单元中的V-L特性数据和由D-L计算单元计算的D-L特性数据来计算RGB的D-V特性数据。 DAC根据由D-V计算单元计算的D-V特性数据，产生与从时序控制器输入的视频信号相对应的驱动电压，并对每个像素施加驱动电压。

公开(公告)号：US20120139969A1

公开(公告)日：2012-06-07

申请号：US13308620

申请日：2011-12-01

申请人： Junichi YOKOYAMA ,  Masahisa Tsukahara ,  Hajime Akimoto

发明人： Junichi YOKOYAMA ,  Masahisa Tsukahara ,  Hajime Akimoto

IPC分类号： G09G5/10

CPC分类号： G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0833 ,  G09G2320/0233 ,  G09G2330/028

摘要： An image display device includes plural pixel circuits each of which includes a light emitting element where an amount of light emission changes corresponding to an amount of current and a drive transistor which controls the amount of current which flows to the light emitting element based on a display signal, a data line drive circuit which supplies a display signal to the plural pixel circuits respectively based on image data, a power source part which outputs a light-emitting potential, and a current amount prediction part which calculates an amount of current which flows to the plural pixel circuits from the power source part based on the image data. The power source part performs a control for suppressing fluctuation of the light-emitting potential based on the calculated amount of current and the outputted light-emitting potential.

摘要翻译： 图像显示装置包括多个像素电路，每个像素电路包括发光元件，其中发光量对应于电流量变化;以及驱动晶体管，其基于显示来控制流向发光元件的电流量 信号，分别基于图像数据向多个像素电路提供显示信号的数据线驱动电路，输出发光电位的电源部，以及计算流过的电流量的电流量预测部 基于图像数据从电源部分的多个像素电路。 电源部基于计算出的电流量和输出的发光电位进行抑制发光电位的波动的控制。

公开(公告)号：US20110292019A1

公开(公告)日：2011-12-01

申请号：US13114086

申请日：2011-05-24

申请人： Shoji YAMAMOTO ,  Junichi YOKOYAMA ,  Masahisa TSUKAHARA

发明人： Shoji YAMAMOTO ,  Junichi YOKOYAMA ,  Masahisa TSUKAHARA

IPC分类号： G09G5/00

CPC分类号： G09G3/3258 ,  G09G2300/0469 ,  G09G2300/0819 ,  G09G2310/0248 ,  G09G2320/0233

摘要： Provided is an image display device including: a pixel circuit; a power supply line; a data line for supplying a data signal to the pixel circuit; and a current path control unit. The pixel circuit includes: a light emitting element; a drive transistor for controlling a current flowing to the light emitting element; a storage capacitor provided between the data line and a gate electrode of the drive transistor, for storing a potential difference; and a data line connection switch for connecting one end of the storage capacitor on the gate electrode side of the drive transistor and the data line. Before the data line supplies the data signal, the data line connection switch is turned ON, and the current path control unit interrupts a current path from the power supply line to the one end of the storage capacitor.

摘要翻译： 提供一种图像显示装置，包括：像素电路; 电源线; 用于向像素电路提供数据信号的数据线; 和电流路径控制单元。 像素电路包括：发光元件; 用于控制流向所述发光元件的电流的驱动晶体管; 存储电容器，设置在所述数据线与所述驱动晶体管的栅电极之间，用于存储电位差; 以及数据线连接开关，用于连接驱动晶体管的栅极电极侧的存储电容器的一端和数据线。 在数据线提供数据信号之前，数据线连接开关导通，电流路径控制单元中断从电源线到存储电容器一端的电流路径。

公开(公告)号：US20110043544A1

公开(公告)日：2011-02-24

申请号：US12856777

申请日：2010-08-16

申请人： Norihiro NAKAMURA ,  Hajime AKIMOTO ,  Junichi YOKOYAMA

发明人： Norihiro NAKAMURA ,  Hajime AKIMOTO ,  Junichi YOKOYAMA

IPC分类号： G09G5/10

CPC分类号： G09G3/3233 ,  G09G2300/0861 ,  G09G2310/06 ,  G09G2310/08 ,  G09G2320/066

摘要： Provided is an image display device, in which light emission period control signals are applied to a plurality of pixels holding voltages based on grayscale values, to emit from light emitting elements. During a horizontal synchronizing period, an active period of each of the light emission period control signals is divided into two periods. A start of one of the divisional periods coincides with a start of the horizontal synchronizing signal. An end of the other divisional period coincides with an end of the horizontal synchronizing signal. The active periods of the light emission period control signals (G) and (B) are equal to or larger than 80% of the active period of the light emission period control signal (R). An active period of a light emission control signal is synchronized with the light emission period control signal (R).

摘要翻译： 提供了一种图像显示装置，其中发光周期控制信号被施加到基于灰度值的保持电压的多个像素，以从发光元件发射。 在水平同步时段期间，每个发光周期控制信号的有效周期被分成两个周期。 分割周期中的一个的开始与水平同步信号的开始重合。 另一分割周期的结束与水平同步信号的结束一致。 发光周期控制信号（G）和（B）的有效周期等于或大于发光周期控制信号（R）的有效周期的80％。 光发射控制信号的有效周期与发光周期控制信号（R）同步。