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    METHOD OF CONTROLLING AN ELECTROLUMINESCENT DISPLAY AND RELATED CONTROL CIRCUIT
    1.
    发明申请
    METHOD OF CONTROLLING AN ELECTROLUMINESCENT DISPLAY AND RELATED CONTROL CIRCUIT 有权
    控制电致发光显示器的方法和相关控制电路

    公开(公告)号：US20130207569A1

    公开(公告)日：2013-08-15

    申请号：US13758031

    申请日：2013-02-04

    Applicant: STMICROELECTRONICS S.R.L.

    Inventor： Giovanni CONTI ,  Domenico Cristaudo ,  Stefano Corradi

    IPC: H05B37/02

    CPC classification number: H05B37/02 ,  G09G3/3233 ,  G09G3/3291 ,  G09G2320/0233 ,  G09G2330/028

    Abstract: A control circuit is for generating upper and lower voltages that define a range of a data voltage for controlling a driving transistor of an electroluminescent component coupled to a supply line through the driving transistor. The control circuit may include a first input terminal configured to have a common voltage, and a pair of amplifiers coupled together at the first input terminal and configured to generate the upper voltage and the lower voltage to correspond to a difference between the common voltage and, respectively, first and second analog intermediate voltages representing respective threshold values of the upper voltage and of the lower voltage. The control circuit may include an auxiliary amplifier configured to adjust the upper voltage and the lower voltage based upon fluctuations of an input voltage, and generate the common voltage to correspond to the difference between the input voltage and a reference voltage.

    Abstract translation: 控制电路用于产生限定用于控制通过驱动晶体管耦合到电源线的电致发光元件的驱动晶体管的数据电压的范围的上限和下限电压。 控制电路可以包括被配置为具有公共电压的第一输入端子和在第一输入端子耦合在一起的一对放大器，并且被配置为产生上限电压和较低电压以对应于公共电压之间的差， 分别表示表示上部电压和较低电压的相应阈值的第一和第二模拟中间电压。 控制电路可以包括辅助放大器，其被配置为基于输入电压的波动来调节上限电压和较低电压，并且产生公共电压以对应于输入电压和参考电压之间的差。

    SYSTEM ARCHITECTURE FOR HIGH DENSITY MINI/MICRO LED BACKLIGHT APPLICATION
    3.
    发明公开
    SYSTEM ARCHITECTURE FOR HIGH DENSITY MINI/MICRO LED BACKLIGHT APPLICATION 审中-公开

    公开(公告)号：US20230222984A1

    公开(公告)日：2023-07-13

    申请号：US18120312

    申请日：2023-03-10

    Applicant: STMicroelectronics S.r.l.

    Inventor： Gaetano L'EPISCOPO ,  Giovanni CONTI ,  Carmelo OCCHIPINTI ,  Mario Antonio ALEO

    IPC: G09G3/34 ,  G09G3/36

    CPC classification number: G09G3/3426 ,  G09G3/3611 ,  G09G2330/021 ,  G09G2310/08

    Abstract: A non-emissive display includes a backlight controller sending a pulse during each sub-frame of a plurality of frames to row and column drivers that drive backlight zones. The row drivers count each pulse to keep a pulse count total, and reset the pulse count total when it is equal to a first number indicating how many row drivers are present. Each row driver activates its channels and waits for a next pulse if the pulse count total is not equal to the first number and if the pulse count total is equal to a second number indicating in which sub-frame that first driver is to be activated. Each row driver waits for a next pulse if the pulse count total is not equal to the first number and the second number. Each column driver activates its channel in response to receipt of each pulse.

    HIGH EFFICIENCY GHOST ILLUMINATION CANCELATION IN EMISSIVE AND NON-EMISSIVE DISPLAY PANELS
    5.
    发明公开
    HIGH EFFICIENCY GHOST ILLUMINATION CANCELATION IN EMISSIVE AND NON-EMISSIVE DISPLAY PANELS 审中-公开

    公开(公告)号：US20230222987A1

    公开(公告)日：2023-07-13

    申请号：US17991152

    申请日：2022-11-21

    Applicant: STMicroelectronics S.r.l.

    Inventor： Gaetano L'EPISCOPO ,  Giovanni CONTI

    IPC: G09G3/36 ,  G09G3/32

    CPC classification number: G09G3/3611 ,  G09G3/32 ,  G09G2320/0257 ,  G09G2300/0842

    Abstract: Display elements, each having anode and cathode terminals, are arranged into rows and columns. Each row has an anode-line coupled to the anode terminals for its display elements. Each column has a cathode-line coupled to the cathode terminals for its display elements. A switch for each anode-line selectively couples that anode-line to a storage capacitor, and a switch for each cathode-line selectively couples that cathode-line to the storage capacitor. A display driver activates the row driver for a given row and the column driver for a given column. A switch driver closes the switch for the cathode-line for the given column, then opens the switch for that cathode-line. The display driver deactivates the row driver for the given row, after closing the switch for the cathode-line for the given column. The switch driver closes the switch for the anode-line for the given row.

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