SU849289A1

SU849289A1 - Electroluminescent indicator

Info

Publication number: SU849289A1
Application number: SU782671518A
Authority: SU
Inventors: Семен Зиновьевич Низник
Original assignee: Предприятие П/Я А-1139
Priority date: 1978-10-09
Filing date: 1978-10-09
Publication date: 1981-07-23

Description

(54) ЭЛЕКТРОЛЮМИНЕСЦЕНТНЫЙ ИНДИКАТОР(54) ELECTROLUMINESCENT INDICATOR

1one

Изобретение относитс к автоматике и вычислительной технике, в частности к устройствам дл отображени информации.The invention relates to automation and computing, in particular to devices for displaying information.

Известны электролюминесцентные индикаторы , содержащие пластину с токопровод щей пленкой и последовательно нанесенными электролюминесцентным, отражающим слоем, электродом и герметизирующим слоем 1.Electroluminescent indicators are known, which contain a plate with a conductive film and a successively applied electroluminescent reflecting layer, an electrode, and a sealing layer 1.

Недостатком его вл етс низка надежность .The disadvantage of it is low reliability.

Наиболее близким по технической сущности к предлагаемому вл етс электролюминесцентный индикатор, содержащий стекл нную пластину с токопровод щей пленкой , на поверхность которой нанесен рабочий слой, на котором расположен первый электрод, и второй электрод, например контактна площадка. Вс конструкци залита герметизирующим компаундом 2.The closest in technical essence to the present invention is an electroluminescent indicator comprising a glass plate with a conductive film, on the surface of which a working layer is deposited, on which the first electrode is located, and the second electrode, such as a contact pad. The entire structure is encapsulated with a sealing compound 2.

Недостатком этого индикатора вл етс низка надежность, обусловленна наличием больщой технологической зоны, котора представл ет собой рассто ние от крайнего элемента свет щегос изображени до кра индикатора. Особенно остро этот недостатокThe disadvantage of this indicator is low reliability due to the presence of a large technological zone, which is the distance from the outermost element of the light of the image to the edge of the indicator. This disadvantage is especially acute.

про вл етс при построении мозаичных табло на данных индикаторных элементах, так как технологическа зона удваиваетс , что не позвол ет уменьщать шаг табло и снижать габариты, а при тех же габаритах снижает надежность.appears when building mosaic panels on these indicator elements, since the technological zone doubles, which does not allow to reduce the step of the board and reduce dimensions, and with the same dimensions reduces reliability.

Цель изобретени - повыщение надежности .The purpose of the invention is to increase reliability.

Поставленна цель достигаетс тем, что в электролюминесцентном индикаторе, содержащем стекл нную пластину с токопровод щей пленкой на поверхность которой This goal is achieved by the fact that in an electroluminescent indicator containing a glass plate with a conductive film on the surface of which

10 нанесен рабочий слой, на котором расположен первый электрод, и вт:орой электрод, например контактна площадка на боковой стороне стекл нной пластины выполнен уступ , на котором расположена контактна 10 a working layer is deposited on which the first electrode is located, and W: an electrode, for example a contact pad on the side of the glass plate, has a ledge on which the contact is located

15 площадка.15 playground.

На чертеже схематично представлена конструкци индикатора.The drawing schematically shows the structure of the indicator.

Claims

The indicator comprises a glass plate 1 with a conductive film 2, a step 3, a first electrode 4, a working layer 5, a sealing layer 6, a second electrode 7, and conductors 8 for connecting the indicator to the excitation source. The indicator works as follows. When power is supplied to the phosphor layer (working layer) 5, direct conversion of electrical energy into light occurs. Making a ledge on the side surface of the plate and transferring the second electrode 7 to it increases the effective glow area, since the working layer 5 is now applied to the entire lower end of the glass plate 1. In addition, the gap between the two electrodes is removed, which also increases the electroluminescent reliability indicator. The width of the pad 4 (the second electrode) ceases to influence the observer. Losses of useful glow area are reduced by the amount of t +. where t is the width of the contact area in mm; D - the size of the gap between the second electrode (contact pad) and the first electrode. In addition, the proposed design allows for a packageless version, which reduces the labor intensity and cost of production. When building mosaic panels on these elements, their dimensions decrease, or with the same dimensions, the information capacity increases and reliability increases. The Invention Electroluminescent indicator comprising a glass plate with a conductive film on which a working layer is deposited, on which the first electrode is located, and a second electrode, such as a contact pad, characterized in that on the side thereof the glass plate has a ledge on which the contact area is located. Sources of information taken into account in the examination 1. Application electroluminescence. Ed. M.V. Fock, M-. “Soviet Radio, 1964, p. 160-170.

2. Display technology. Ed. A. N. Shemanina, Kiev, “Naukova Dumka, 1976, p. 137-138 (prototype).