SU902105A1

SU902105A1 - Information display

Info

Publication number: SU902105A1
Application number: SU792799082A
Authority: SU
Inventors: Борис Исаакович Горфинкель; Евгений Николаевич Петров; Владимир Алексеевич Решетаров
Original assignee: Предприятие П/Я Г-4468
Priority date: 1979-07-17
Filing date: 1979-07-17
Publication date: 1982-01-30

Description

(54) УСТРОЙСТВО ОТОБРАЖЕНИЯ ИНФСРМАЦИИ(54) INFORMATION DISPLAY DEVICE

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Изобретение относитс к электровакуумным приборам и может быть исполь эовано при разработке и изготовлении крупногабаритных плоских телевианонных экранов.The invention relates to electrovacuum devices and can be used in the design and manufacture of large flat-panel television screens.

Известна плоска приемна электрон- . нолучева трубка (ЭЛТ), содержаща катоп , аноц с катоцолюминрфороми систему дискретизации электронного потсжа в виде набора двух р дов( параллельных оруг другу провод щих путей, располо ,женных в параллельных плоскост х, гричем нити различных р дов взаимно перпендикул рны 11 .The known flat receiving electron is. A non-trap tube (CRT) containing a catop, an anode with catotoluminor and an electronic sampling system in the form of a set of two rows (parallel to each other paths located in parallel planes, grits of different rows of mutually perpendicular 11.

Недостаток известного технического решени состоитв его малой механической прочности из-за наличи свободно подвещенных нитей, а также отсутствие усилени электронного потока.A disadvantage of the known technical solution consists in its low mechanical strength due to the presence of free-informed filaments, as well as the absence of amplification of the electron beam.

Наиболее близким к предлагаемому вл етс устройство отображени информации содержащее катод, анод с катодолюминофором и микроканальнуто пластину с ортогонально расположенными управл кшнми электрода)йи, размещенную межпу катодом и аноцом 2 .The closest to the present invention is an information display device comprising a cathode, an anode with a cathodoluminophore, and a microchannel plate with orthogonal control electrode pulses, yi, placed between the cathode and the anode 2.

Недостаток известного технического рещени - необходимость коммутации высоких управл ющих напр Ежений, равных напр жению питани микроканальной пластины , дл получени требуемого изображени на люминесцентном экране устройства иэ-за расположени управл ющих электродов на обеих плоскост х (входной и выходной) микроканальной пластины.A disadvantage of the known technical solution is the necessity of switching high control helium voltages equal to the voltage of the microchannel plate power supply in order to obtain the desired image on the luminescent screen of the device due to the location of the control electrodes on both planes of the microchannel plate.

Цель изобретени - уменьшение управл ющих напр жений при высокой механической прочности.The purpose of the invention is to reduce control stresses with high mechanical strength.

Claims

The goal is achieved by the fact that in an information display device containing a cathode, an anode with a cathode monophore, and a microchannel plate with orthogonal control electrodes placed between the cathode and the anode, facing the cathode. The drawing shows the proposed device, the cross section along the symmegary plane in one of the channels of the microchannel plate. The device contains a cathode 1, a microchannel plate (MCP) 2, control electrodes 3 and 4 (filaments), an anode 5, a layer b a and then a phosphor a, a grid 7, contact electrodes 8 and 9, a secondary emission coating 10 of a microchannel plate . In one mode, positive potentials are supplied to the anode 5, grid 7, and electrodes 8 and 9, and negative potentials relative to cathode I to electrodes 3 and 4. At the same time, the channels through the MCP channels and the emission of the cathode diode are absent. In another mode, positive potentials relative to the cathode are applied to the anode 5, the grid 7, the electrodes 8 and 9, and some of the electrodes 3 and 4. The channels lying at the intersection of the electrodes 3 and 4 with positive potentials are open, and corresponding points of the cathode luminophore of the anode appear and there are light points, which create a bright picture. With the corresponding methods of changing the potentials of the electrodes 3 and 4, it is possible to produce a successive change of images, adjust the brightness and contrast of the image. Grid 7 provides the necessary level of current collection from the cathode and directs the electron flow to the MCP. By using non-hot cathodes (for example, oxide-magnesium), the need for grid 7 is eliminated. The proposed device can be used for multi-color display of information. In this case, the cathodolumine form should be made in the form of spots of a different glow color, each spot of a different glow color should be located opposite to at least one intersection of the control filaments. The use of the device allows the use of low-voltage transistor control circuits for the creation and use of large-size flat receiving television CRT tubes. The formula of the image of the device Information display device containing a cathode, an ano with a cathode luminophor, and a microchannel plate with orthogonal control electrodes placed between the cathode and the anode, in order to reduce the control voltages with high mechanical strength The electrodes are placed in grooves of different depths, filled on the side of the microchannel plate facing the cathode. Sources of information taken into account in the examination 1. Japan Patent N 45-14O09, cl. 99 F 11, 05.05.70.

2. USSR author's certificate N "674571, cl. H 01 J 31/50, 22.O3.79 (prototype).

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