公开(公告)号：US4020280A

公开(公告)日：1977-04-26

申请号：US444017

申请日：1974-02-20

申请人： Ryuichi Kaneko ,  Minori Yokozawa ,  Shigemitsu Suzuki ,  Takeo Kamegaya

发明人： Ryuichi Kaneko ,  Minori Yokozawa ,  Shigemitsu Suzuki ,  Takeo Kamegaya

IPC分类号： H04N3/12 ,  H04N3/00

CPC分类号： H04N3/125

摘要： A pulse width luminance modulation system for driving a gas discharge panel in line at a time. The driving circuit for the discharge cell comprises a CR time constant element in order to enlarge the contrast range of the picture to be displayed. The discharge cell is caused to produce glow discharge when the pulse width of the pulse width modulation driving pulse is wider than a certain value depending on the CR time constant to produce normal pulse width luminance modulation of the glow discharge, and the discharge cell is caused to produce instantaneous irradiation of which the intensity is dependent on a stored charge in the capacitive element C of the CR element when the driving pulse width is narrower than the certain value so as to widen the low luminance range and by suitably selecting the value of the CR element for obtaining continuity of the two luminance characteristics, and further the input signal for making luminance modulation is applied with a correction in order to make the .gamma. value of the luminance characteristic of the discharge cell a close approximation to that of a cathode ray tube after converting the input signal to a pulse code modulated signal for obtaining an easy .gamma. correction in the low luminance range.

摘要翻译： 一种脉冲宽度亮度调制系统，用于一次一行地驱动气体放电板。 用于放电单元的驱动电路包括CR时间常数元件，以便放大要显示的图像的对比度范围。 当脉冲宽度调制驱动脉冲的脉冲宽度大于根据CR时间常数的一定值而使放电单元产生辉光放电以产生辉光放电的正常脉冲宽度亮度调制，并且引起放电单元 当驱动脉冲宽度比特定值窄时，其强度取决于CR元件的电容元件C中的存储电荷，以便加宽低亮度范围并且通过适当地选择 用于获得两个亮度特性的连续性的CR元件，以及进一步用于进行亮度调制的输入信号进行校正，以使放电单元的亮度特性的伽马值与阴极射线管的亮度特性接近 在将输入信号转换为脉冲编码调制信号之后，在低亮度下获得容易的伽马校正 ance范围。

公开(公告)号：US4162427A

公开(公告)日：1979-07-24

申请号：US885947

申请日：1978-03-13

申请人： Takeo Kamegaya ,  Minori Yokozawa ,  Ryuichi Kaneko ,  Hideomi Matsuzaki

发明人： Takeo Kamegaya ,  Minori Yokozawa ,  Ryuichi Kaneko ,  Hideomi Matsuzaki

IPC分类号： G09G3/282 ,  H01J17/49 ,  H05B37/00 ,  H05B39/00 ,  H05B41/00

CPC分类号： H01J11/00 ,  G09G3/282

摘要： A gas-discharge display panel comprises plural elongated minute gas-discharge cells arranged in matrix directly on inner faces of front and rear insulator plates, on opposite sides of which cells elongated anodes and cathodes are disposed respectively and which cells are driven by igniting pulses, sustaining pulse-trains and erasing pulses in response to picture signals to be displayed. In these cells glows appear closely by both of anodes and cathodes and excite fluorescent layers which are disposed on cell-walls at the closest distance, so that very high brightness and efficiency of gas-discharge display can be obtained with a simple structure, and further a memory function of gas-discharge can be effected by virtue of the sustaining pulse-trains.

摘要翻译： 气体放电显示面板包括多个细长的微小气体放电单元，其直接布置在前绝缘板和后绝缘体板的内表面上，其相对侧上分别设有细长的阳极和阴极，并且这些单元由点火脉冲驱动， 响应于要显示的图像信号维持脉冲串和擦除脉冲。 在这些电池中，阳极和阴极两者都发光，激光荧光层以最小的距离设置在电池壁上，从而可以以简单的结构获得非常高的气体放电显示亮度和效率 气体放电的记忆功能可以通过维持脉冲列进行。

公开(公告)号：US3952221A

公开(公告)日：1976-04-20

申请号：US491634

申请日：1974-07-25

申请人： Takeo Kamegaya ,  Ryuichi Kaneko ,  Minori Yokozawa ,  Hideomi Matsuzaki

发明人： Takeo Kamegaya ,  Ryuichi Kaneko ,  Minori Yokozawa ,  Hideomi Matsuzaki

IPC分类号： H04N5/66 ,  G09G3/20 ,  G09G3/282 ,  H01J17/49 ,  H01J61/067 ,  H01J61/09 ,  H01J61/30 ,  H01J61/48

CPC分类号： H01J17/497

摘要： A gaseous discharge display panel in which in order to display images of good quality with high brightness and high efficiency a discharge unit constituting of a picture element of the display panel is formed as an elongated fine section extending in parallel to the display plane and discharge is produced in the longitudinal direction of the discharge unit so as to display images with the aid of plane discharge. Particularly in order to display color images on the front and/or rear side of the discharge unit there is arranged an insulating sheet to which fluorescent materials are applied in such a manner that the fluorescent materials are opposed near a discharge plasma with a large area and an ultra-violet ray produced by the discharge can excite efficiently the fluorescent materials. The display panel is so constructed that luminescent light from the fluorescent materials having a large surface area can be inspected in the form of the reflected and transmitted light so as to increase the luminous brightness by several times compared with known display panels. Moreover, a cathode of the discharge unit is arranged at a position hidden from the fluorescent materials so as to prevent sputtered cathode materials due to ion bombardment from being applied to the fluorescent materials, so that the fluorescent materials are not blackened and thus the luminous brightness is not decreased.

摘要翻译： 一种气体放电显示面板，其中为了以高亮度和高效率显示高质量的图像，构成显示面板的像素的放电单元形成为与显示面平行延伸的细长细长部分，放电是 在放电单元的纵向上产生，以便借助于平面放电来显示图像。 特别是为了在放电单元的前侧和/或后侧显示彩色图像，布置有以荧光材料在大面积的放电等离子体附近相对的方式施加荧光材料的绝缘片， 通过放电产生的紫外线可以有效地激发荧光材料。 显示面板被构造成能够以反射和透射光的形式检查来自具有大表面积的荧光材料的发光，从而与已知的显示面板相比增加发光亮度几倍。 此外，放电单元的阴极被布置在隐藏于荧光材料的位置，以便防止溅射的阴极材料由于离子轰击而被施加到荧光材料上，使得荧光材料不变黑，因此发光亮度 没有减少

公开(公告)号：US4249105A

公开(公告)日：1981-02-03

申请号：US946334

申请日：1978-09-27

申请人： Takeo Kamegaya ,  Hideomi Matsuzaki ,  Ryuichi Kaneko ,  Minori Yokozawa

发明人： Takeo Kamegaya ,  Hideomi Matsuzaki ,  Ryuichi Kaneko ,  Minori Yokozawa

IPC分类号： H01J17/50 ,  H01J17/49 ,  H01J61/067

CPC分类号： H01J17/492

摘要： Disclosed is a gas-discharge display panel having plural discharge cells arranged in a matrix. Each of the discharge cells is provided with a hot cathode consisting of conductive material having a shape which provides a heat capacity and heat conductivity as small as possible. Each cathode is coated by an electron emissive material having a small work function. As a result, the hot cathode can be heated to a required working temperature solely by the bombardment of particles contained in a discharge current itself, without requiring any externally supplied heating power to obtain a highly efficient use of applied driving power.

摘要翻译： 公开了具有排列成矩阵状的多个放电单元的气体放电显示面板。 每个放电单元设置有由导电材料构成的热阴极，其具有尽可能小的提供热容量和导热性的形状。 每个阴极由具有小功函数的电子发射材料涂覆。 结果，热阴极只能通过轰击包含在放电电流本身中的颗粒而被加热到所需的工作温度，而不需要任何外部供应的加热功率来获得施加的驱动功率的高效率使用。