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    Display device
    2.
    发明授权
    Display device 失效
    显示设备

    公开(公告)号：US5339011A

    公开(公告)日：1994-08-16

    申请号：US010776

    申请日：1993-01-29

    Applicant: Takahiko Tamura ,  Satoshi Miura

    Inventor： Takahiko Tamura ,  Satoshi Miura

    IPC: H04N9/73 ,  G09G1/06 ,  G09G1/28 ,  H04N9/72 ,  G09G1/04 ,  H01J1/04 ,  H04N5/18

    CPC classification number: G09G1/06 ,  G09G1/285 ,  H04N9/72

    Abstract: A display device comprising a CRT having a reduced number of components for automatic cutoff adjustment. The device needs an IC having a less number of connection pins. The device adds reference pulses to given portions within every field of video signals. The resulting cathode currents are converted into voltage pulses. These voltage pulses are compared with a reference voltage by a comparator. The output signal from this comparator is counted by forward-backward counters for three primary colors, respectively, and converted into analog form. Level shift circuits for the three primary colors, respectively, control the DC components of the video signals according to the output signals from the D/A converters. In this way, the cutoff characteristics of the CRT are controlled.

    Abstract translation: 一种显示装置，包括具有减少的用于自动切断调节的部件数量的CRT。 该器件需要一个连接引脚数较少的IC。 该设备将参考脉冲添加到视频信号的每个场内的给定部分。 所得到的阴极电流被转换成电压脉冲。 这些电压脉冲通过比较器与参考电压进行比较。 来自该比较器的输出信号分别由三原色的前向 - 后向计数器计数，并转换为模拟形式。 三原色电平移位电路分别根据D / A转换器的输出信号控制视频信号的直流分量。 以这种方式，控制CRT的截止特性。

    Coated coil emissive electrode
    3.
    发明授权
    Coated coil emissive electrode 失效
    涂层电磁线圈

    公开(公告)号：US3837909A

    公开(公告)日：1974-09-24

    申请号：US27564472

    申请日：1972-07-27

    Applicant: ITT

    Inventor： MENELLY R

    IPC: H01J9/04 ,  H01J61/067 ,  H01J1/04 ,  B44D1/02

    CPC classification number: H01J61/0677 ,  H01J9/042

    Abstract: A coated coil emissive electrode of the type utilized in fluorescent lamps and a method for making such an electrode. The electrode includes a tungsten coil, a bonding layer of an emissive form of barium tungstate coating said tungsten coil, and a layer of porous barium oxide coating said barium tungstate, said barium tungstate bonding said barium oxide to said tungsten coil. The electrode is made by coating said tungsten coil wuth a mixture of barium peroxide, cellulose nitrate and butyl cellosolve and heating said coated coil to the exothermal decomposition temperature of said cellulose nitrate. The exothermal decompositon of said cellulose nitrate raises the temperature of the barium peroxide to its exothermal decomposition temperature thereby forming said bonding layer of the emissive form of barium tungstate and releasing bubbles of oxygen causing the pores in said barium oxide.

    Abstract translation: 在荧光灯中使用的涂覆线圈发射电极和制造这种电极的方法。 所述电极包括钨线圈，涂覆所述钨线圈的发射形式的钨酸钡的结合层和涂覆所述钨酸钡的多孔氧化钡层，所述钡钨酸盐将所述氧化钡粘合到所述钨线圈上。 电极是通过将所述钨线圈浸渍过氧化钡，硝酸纤维素和丁基溶纤剂的混合物并将所述涂覆的线圈加热到所述硝酸纤维素的放热分解温度来制备的。 所述硝酸纤维素硝酸盐的放热分解将过氧化钡的温度升高到其放热分解温度，从而形成钨酸钡的发射形式的所述粘合层并释放氧气，导致所述氧化钡中的孔。

    Circuit with switch-off device for the operation of light sources
    4.
    发明授权
    Circuit with switch-off device for the operation of light sources 失效
    具有关闭装置的电路用于操作光源

    公开(公告)号：US07443106B2

    公开(公告)日：2008-10-28

    申请号：US11151352

    申请日：2005-06-14

    Applicant: Marco Faccin ,  Felix Franck ,  Michele Menegazzi

    Inventor： Marco Faccin ,  Felix Franck ,  Michele Menegazzi

    IPC: H05B37/02 ,  H01J1/04 ,  H02M3/24 ,  H01H9/00

    CPC classification number: H05B41/2856 ,  Y02B20/185 ,  Y02B20/186

    Abstract: Circuit with a switch-off device for the operation of light sources The invention relates to a circuit with a switch-off device for the operation of light sources (Lp), have the following features: a self-commutated half-bridge inverter having a series circuit of an upper electronic switch and a lower electronic switch (T1, T2), which are joined at a half-bridge midpoint (M) and are connected between a supply voltage (+) and a ground potential, a start capacitor (C3) which is joined via a trigger element (DIAC) to a control electrode of the lower electronic switch (T2), and a switch-off device having an input (E) and an output, which are configured and connected so that they discharge the start capacitor (C3) if a switch-off signal is applied to the input (E). The switch-off device contains a time delay. In order to be able to keep the components in the time delay small, it is proposed that the switch-off device should comprise two successively connected transistor stages (T3, T4) with bipolar transistors, a first stage (T3) being configured as a collector circuit and a second stage (T4) being configured as an emitter circuit. The second stage (T4) may perferable be used to suppress start pulses.

    Abstract translation: 具有用于光源操作的关断装置的电路技术领域本发明涉及一种具有用于光源（Lp）操作的关断装置的电路，具有以下特征：具有以下特征的自换向半桥逆变器： 在半桥中点（M）连接并连接在电源电压（+）和接地电位之间的上电子开关和下电子开关（T 1，T 2）的串联电路，启动电容器 （C 3），其经由触发元件（DIAC）连接到下部电子开关（T 2）的控制电极，以及具有输入（E）和输出的关断装置，其被配置和连接为 如果关闭信号被施加到输入端（E），它们将启动电容器（C 3）放电。 关闭设备包含时间延迟。 为了能够使组件在时间延迟中保持较小，提出关断装置应包括具有双极晶体管的两个连续连接的晶体管级（T 3，T 4），第一级（T 3） 被配置为集电极电路，第二级（T 4）被配置为发射极电路。 可以使用第二级（T 4）来抑制起始脉冲。

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