Active matrix display device
    6.
    发明申请
    Active matrix display device 审中-公开
    主动矩阵显示装置

    公开(公告)号:US20070229408A1

    公开(公告)日:2007-10-04

    申请号:US11395711

    申请日:2006-03-31

    申请人: Bruno Primerano

    发明人: Bruno Primerano

    IPC分类号: G09G3/30

    摘要: A display device includes address decoding circuitry for causing the activation or deactivation of the pixel circuits a row at a time during a cycle containing a plurality of different time windows, wherein each time window has different time values, the total time of activated windows for a given pixel circuit corresponds to the desired brightness of the display element of such circuit, such address decoding circuitry including: i) column select circuitry for providing the activating and deactivating data signals on the data lines; ii) a random access decoder responsive to address signals for providing the select signals on the select lines of a desired row in the matrix; and iii) control circuitry for producing the addresses for the random access decoder and for providing data signals to the column select circuitry so that each pixel is activated for a time corresponding to its desired brightness.

    摘要翻译: 显示设备包括地址解码电路,用于在包含多个不同时间窗口的周期期间一次激活或去激活像素电路,其中每个时间窗口具有不同的时间值,激活的窗口的总时间为 给定像素电路对应于这种电路的显示元件的期望亮度,这样的地址解码电路包括:i)列选择电路,用于在数据线上提供激活和去激活数据信号; ii)响应于地址信号的随机存取解码器,用于在矩阵中的期望行的选择线上提供选择信号; 以及iii)用于产生随机存取解码器的地址并用于向列选择电路提供数据信号的控制电路,使得每个像素被激活一段对应于其期望亮度的时间。

    RESETTING DRIVE TRANSISTORS IN ELECTRONIC DISPLAYS
    8.
    发明申请
    RESETTING DRIVE TRANSISTORS IN ELECTRONIC DISPLAYS 审中-公开
    在电子显示屏中重置驱动晶体管

    公开(公告)号:US20090167644A1

    公开(公告)日:2009-07-02

    申请号:US11965847

    申请日:2007-12-28

    IPC分类号: G09G3/30

    摘要: A method for resetting drive transistors associated with subpixels in an electroluminescent display, comprising providing an electroluminescent display having a plurality of subpixels, each subpixel including an electroluminescent device and a drive circuit having a drive transistor for providing current through its associated electroluminescent device; providing a separate aging signal for each subpixel during operation of the electroluminescent display after a predetermined operating time period by responding as a function of the current passing through each of the subpixels or as a function of a voltage associated with each drive circuit; comparing each of the separate aging signals with a corresponding threshold level to produce a separate staleness signal for each subpixel representing whether or not the associated drive transistor should be reset; and resetting the associated drive transistors in response to staleness signals that indicate such drive transistors should be reset.

    摘要翻译: 一种用于重置与电致发光显示器中的子像素相关联的驱动晶体管的方法,包括提供具有多个子像素的电致发光显示器,每个子像素包括电致发光器件和具有驱动晶体管的驱动电路,所述驱动晶体管用于通过其相关联的电致发光器件提供电流; 在通过响应于通过每个子像素的电流的函数或作为与每个驱动电路相关联的电压的函数的响应之后,在预定操作时间段之后在电致发光显示器的操作期间为每个子像素提供单独的老化信号; 将每个单独的老化信号与相应的阈值电平进行比较,以产生用于每个子像素分别表示相关的驱动晶体管是否应被复位的单独的恒定信号; 并且响应于指示这种驱动晶体管的稳定信号应该复位相关的驱动晶体管。

    Method and apparatus for determining toner development rate
    9.
    发明授权
    Method and apparatus for determining toner development rate 失效
    用于确定调色剂显影速率的方法和装置

    公开(公告)号:US5285243A

    公开(公告)日:1994-02-08

    申请号:US896866

    申请日:1992-06-12

    IPC分类号: G03G15/00 G03G15/08 G03G21/00

    CPC分类号: G03G15/50 G03G15/0848

    摘要: A method and apparatus for determining the rate of development characteristic of electroscopic toner particles of the type used in electrostatographic recording to develop electrostatic images. The apparatus has a biased electrode for attracting toner particles and a microprocessor-based logic and control unit for sampling the mass of toner particles attracted to the electrode at preselected times during the accumulation of toner on the biased electrode. This development rate parameter is used by the logic and control unit to control process parameters (e.g. primary charging and exposure levels, development electrode bias, toner concentration) which affect image quality.

    摘要翻译: 用于确定用于静电图像的类型的电致调色剂颗粒的显影速率的方法和装置,以形成静电图像。 该装置具有用于吸引调色剂颗粒的偏置电极和基于微处理器的逻辑和控制单元,用于在调色剂在偏置电极上累积期间的预选时间对吸附到电极的调色剂颗粒的质量进行取样。 该开发速率参数由逻辑和控制单元用于控制影响图像质量的工艺参数(例如初级充电和曝光水平,显影电极偏差,调色剂浓度)。

    Determination of charge-to-mass ratio
    10.
    发明授权
    Determination of charge-to-mass ratio 失效
    电荷与质量比的测定

    公开(公告)号:US5006897A

    公开(公告)日:1991-04-09

    申请号:US546983

    申请日:1990-07-02

    IPC分类号: G03G15/08

    CPC分类号: G03G15/0848 G03G15/0851

    摘要: In electrostatographic apparatus, the ratio of toner particle electrostatic charge-to-toner particle mass and the development rate are determined by providing a piezo device positioned to interact with toner particles. The device is periodically electrically biased to attract toner particles, and the frequency shift of the piezo device due to the mass of attracted toner particles is detected. The electrostatic charge buildup on the electrode due to the attracted toner particles is detected to determine the mass of toner. The potential on the device may be changed periodically from a potential which attracts toner to a potential which repels toner to clean the device.

    摘要翻译: 在静电摄影装置中,调色剂颗粒静电电荷与调色剂颗粒质量和显影速率的比率通过提供定位成与调色剂颗粒相互作用的压电装置来确定。 该装置周期性地电偏置以吸引调色剂颗粒,并且检测到由于吸引的调色剂颗粒的质量引起的压电装置的频移。 检测由吸引的调色剂颗粒引起的电极上的静电电荷,以确定调色剂的质量。 设备上的电位可以从吸引调色剂的电位周期性地改变到排斥调色剂以清洁设备的电位。