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    • 1. 发明专利
    • Scan line selection circuit and display device using it
    • 扫描线选择电路和使用它的显示设备
    • JP2005189819A
    • 2005-07-14
    • JP2004312430
    • 2004-10-27
    • Hitachi Displays LtdHitachi Ltd株式会社 日立ディスプレイズ株式会社日立製作所
    • EDO SUSUMUKOMURA SHINICHIHIROTA SHOICHIISHIGE NOBUYUKI
    • G02F1/133G09G3/20G09G3/36G11C19/28
    • G09G3/3677G09G2310/0278G11C19/28
    • PROBLEM TO BE SOLVED: To solve the problem that an output voltage becomes lower than an input voltage in a scan line selection circuit of a matrix type display device and the efficiency is low. SOLUTION: A scan line selection circuit is constituted by connecting a plurality of stages of a basic circuit 16. The basic circuit 16 consists of a basic scanning line driving circuit 14 and a booster circuit 15. A basic scanning signal Gi is input into the basic scanning line driving circuit 14, and a scanning signal OUTn is output. A charge pulse CP(Gi-1), a selection signal Sk and a discharge pulse DCP(Gi+1) are input into the booster circuit 15, and the basic scan line driving circuit 14 is driven. In a basic circuit, there are no problems of a threshold value shift and a voltage decline, so a high efficiency and a stable motion can be realized. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了解决输出电压变得低于矩阵式显示装置的扫描线选择电路中的输入电压的问题,效率低。 解决方案:扫描线选择电路通过连接基本电路16的多个级构成。基本电路16由基本扫描线驱动电路14和升压电路15组成。基本扫描信号Gi被输入 进入基本扫描线驱动电路14,并输出扫描信号OUTn。 充电脉冲CP(Gi-1),选择信号Sk和放电脉冲DCP(Gi + 1)被输入到升压电路15中,驱动基本扫描线驱动电路14。 在基本电路中,没有阈值偏移和电压下降的问题,因此可以实现高效率和稳定的运动。 版权所有(C)2005,JPO&NCIPI
    • 3. 发明专利
    • Image forming device
    • 图像形成装置
    • JP2003043772A
    • 2003-02-14
    • JP2001228912
    • 2001-07-30
    • Hitachi Koki Co LtdHitachi Ltd日立工機株式会社株式会社日立製作所
    • EDO SUSUMUSHIMADA AKIRASUGITA TATSUYAMITSUYA TERUAKIMABUCHI HIROYUKI
    • G03G15/00G03G15/01G03G15/04G03G15/043G03G15/08G03G15/16H04N1/29
    • PROBLEM TO BE SOLVED: To provide an image forming device in which a sensor and a peripheral circuit have a simple constitution, which is equipped with an image position deviation measuring means capable of stably measuring the positional deviation without being influenced by the fluctuation of the speed of an image carrier, and which can output a high-quality image free from positional deviation of colors. SOLUTION: An image aligning controller 31 forms on recording paper 7 measurement reference patterns 40 and 41 whose reflection density is changed in accordance with the positional deviation between individual colors, and measures them by a reflection density sensor 13. By using a reflected light quantity-correction value conversion part 52 in the controller 31, correction values for image forming parts 8K to 8C are obtained and set as a correction information signal 39 and transmitted to an imaging control part 32. Based on the correction information obtained from the signal 39, the control part 32 controls the individual image forming parts 8K to 8C by using an imaging part parameter setting signal 28.
    • 要解决的问题:为了提供一种具有简单结构的传感器和外围电路的图像形成装置,其具有能够稳定地测量位置偏差而不受速度波动影响的图像位置偏差测量装置 的图像载体,并且可以输出没有颜色的位置偏差的高质量图像。 解决方案:图像对准控制器31在记录纸7上形成反射浓度根据各颜色之间的位置偏差而改变的测量参考图案40和41,并通过反射浓度传感器13进行测量。 获得控制器31中的校正值转换部分52,获得用于图像形成部分8K至8C的校正值,并将其设置为校正信息信号39并将其发送到成像控制部分32.基于从信号39获得的校正信息, 控制部32通过使用成像部参数设定信号28来控制各图像形成部8K〜8C。
    • 4. 发明专利
    • Image forming method and device
    • 图像形成方法和装置
    • JPH11275355A
    • 1999-10-08
    • JP7019998
    • 1998-03-19
    • Hitachi Ltd株式会社日立製作所
    • SATO KUNIOKOBAYASHI SHINYAEDO SUSUMU
    • B41J2/52B41J2/44H04N1/405
    • PROBLEM TO BE SOLVED: To form the image of high image quality based on image information of a high frequency.
      SOLUTION: A plurality of first delay clocks 221 whose delay time differs stepwise are generated in synchronization with a reference clock 6 obtained by frequency-dividing a pixel clock 205. First delay clocks 206 of the number required for dividing one pixel time are selected from said clocks 221. The first pulse 207 of time width corresponding to the delay time of the selected first delay clock is generated. A plurality of second delay clocks 226 whose delay time differs stepwise are generated in synchronization with the pixel clock 205. Second delay clocks 230 of the number required for dividing one pixel time are selected from the delay clocks 226. The second pulse 232 of time width corresponding to the delay time of the selected second delay clock is generated. The first or second pulse is outputted as binary image information 233 based on the pattern 203 of image information.
      COPYRIGHT: (C)1999,JPO
    • 要解决的问题:基于高频的图像信息形成高图像质量的图像。 解决方案:与通过对像素时钟205进行分频而获得的参考时钟6同步地生成延迟时间逐步变化的多个第一延迟时钟221.从所述第一延迟时钟 产生对应于所选择的第一延迟时钟的延迟时间的时间宽度的第一脉冲207。 与像素时钟205同步地生成延迟时间逐步变化的多个第二延迟时钟226.从延迟时钟226中选择分割一个像素时间所需数量的第二延迟时间230.时间宽度的第二脉冲232 对应于所选择的第二延迟时钟的延迟时间。 基于图像信息的图案203将第一或第二脉冲作为二值图像信息233输出。
    • 5. 发明专利
    • Image display device and image display module
    • 图像显示装置和图像显示模块
    • JP2007041610A
    • 2007-02-15
    • JP2006244049
    • 2006-09-08
    • Hitachi Ltd株式会社日立製作所
    • SUGITA TATSUYAKOMURA SHINICHIHIROTA SHOICHIYAMAMOTO TSUNENORIOSHIMA TETSUYAEDO SUSUMUKONNO TETSUTOYO
    • G09G3/36G02F1/133G02F1/1343G09F9/30G09G3/20G09G3/30
    • PROBLEM TO BE SOLVED: To reduce power consumption of an image display device, composed of a display panel provided with an image memory element within a pixel. SOLUTION: The non-volatile image memory element 1, the resistance value of which is changed by a phase transition, is connected to a pixel electrode 25 of a liquid crystal element 5. The output of a thin-film transistor 17, driven by a scanning electrode line 7 and a signal electrode line 9, is connected to the pixel electrode 25. When the scanning electrode line 7 is selected and a voltage rises to a high level, the thin-film transistor 17 is turned on, and a current signal flowing to the signal electrode 9 with this timing flows through the image memory element 1 to a reference electrode line 15. The resistance of the image memory element 1 changes, according to the current value or pulse width flowing through the image memory element 1 and is stored as the resistance value. The liquid crystal drive voltage, applied to the liquid crystal element 5 according to the resistance of the image memory element 1, changes, and display is performed on the liquid crystal element 1. COPYRIGHT: (C)2007,JPO&INPIT
    • 解决的问题:为了降低由在像素内设置有图像存储元件的显示面板组成的图像显示装置的功耗。 解决方案:其电阻值由相变改变的非易失性图像存储元件1连接到液晶元件5的像素电极25.薄膜晶体管17的输出, 由扫描电极线7和信号电极线9驱动连接到像素电极25.当选择扫描电极线7并且电压上升到高电平时,薄膜晶体管17导通,并且 以该定时流向信号电极9的电流信号流过图像存储元件1至参考电极线15.图像存储元件1的电阻根据流过图像存储元件的当前值或脉冲宽度而变化 1并存储为电阻值。 根据图像存储元件1的电阻施加到液晶元件5的液晶驱动电压发生变化,并对液晶元件1进行显示。(C)2007,JPO&INPIT
    • 10. 发明专利
    • Display device, and method of driving the same
    • 显示装置及其驱动方法
    • JP2008176330A
    • 2008-07-31
    • JP2008010244
    • 2008-01-21
    • Hitachi Displays LtdHitachi Ltd株式会社 日立ディスプレイズ株式会社日立製作所
    • HIROTA SHOICHIEDO SUSUMUKANEKO HIRONORIOSHIMA TETSUYASUGITA TATSUYAKOMURA SHINICHIFUNAHATA KAZUYUKI
    • G09G3/36G02F1/133G02F1/167G02F1/17G09G3/20G09G3/34
    • PROBLEM TO BE SOLVED: To perform refresh of an image by refreshing an image signal at about 1 Hz frame frequency, without the occurrence of a flicker to adversely affect the display in an image display device of a memory built-in pixel system of a single-channel transistor configuration. SOLUTION: A reference voltage line 108 is scanned synchronously with scanning of a scanning signal line 109; the voltage of the reference voltage line is set to be the voltage of a common electrode 120; the second transistor is set to off state during the reference voltage line is set in the common voltage for a pixel, wherein a node 125 between an image signal memory 124 and the second transistor is set in a voltage so that the second transistor becomes off, and the voltage of the image signal line is set to be high voltage level, when the voltage of the scanning signal line changes from a low voltage level to a high voltage level for the pixel, wherein the node between the image signal memory; and the second transistor is set in a voltage so that the second transistor becomes on. In this pixel, the voltage of the scanning line 110 is set to be at a high level, when at least the voltage of the scanning line switches from a high level to a low level. The display device, having the printed matter and ultra-high fineness display performance by a single transistor configuration and the low power consumption performance by low-frequency driving, can be realized. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:通过刷新大约1Hz帧频的图像信号来执行图像的刷新,而不发生闪烁以对存储器内置像素系统的图像显示装置中的显示产生不利影响 的单通道晶体管配置。 解决方案:扫描信号线109的扫描同步扫描参考电压线108; 参考电压线的电压被设定为公共电极120的电压; 在参考电压线被设置在像素的公共电压中时,第二晶体管被设置为截止状态,其中图像信号存储器124和第二晶体管之间的节点125被设置为使得第二晶体管截止的电压, 并且当扫描信号线的电压从像素的低电压电平改变到高电压电平时,图像信号线的电压被设置为高电压电平,其中图像信号存储器之间的节点; 并且第二晶体管被设置为使得第二晶体管导通的电压。 在该像素中,当至少扫描线的电压从高电平切换到低电平时,扫描线110的电压被设定为高电平。 可以实现具有通过单晶体管配置的印刷物和超高细度显示性能的显示装置和通过低频驱动的低功耗性能。 版权所有(C)2008,JPO&INPIT