RU138736U1 - Ac discharge indicator panel - Google Patents

Ac discharge indicator panel Download PDF

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Publication number
RU138736U1
RU138736U1 RU2013149581/07U RU2013149581U RU138736U1 RU 138736 U1 RU138736 U1 RU 138736U1 RU 2013149581/07 U RU2013149581/07 U RU 2013149581/07U RU 2013149581 U RU2013149581 U RU 2013149581U RU 138736 U1 RU138736 U1 RU 138736U1
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Russia
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dielectric
electrodes
display
indication
coated
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RU2013149581/07U
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Russian (ru)
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Юрий Иванович Гасан
Василий Михайлович Фокин
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Открытое акционерное общество "Научно-исследовательский институт газоразрядных приборов "Плазма" (ОАО "Плазма")
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Abstract

A gas discharge AC display panel comprising a first dielectric plate with pairs of parallel dielectric coated indication electrodes located on its inner surface, a second dielectric plate, on the inner surface of which control electrodes coated with a phosphor and forming display elements with dielectric electrodes are placed orthogonally to the indication electrodes barriers located at least on one of the dielectric plates, characterized in that the thickness of the dielectric layer covering the display electrodes, is in the range 15 microns mkm≤h≤35.

Description

The utility model relates to gas discharge technology and can be used to develop means of displaying information on color gas discharge indicator panels (GUI) of alternating current planar design.

When designing colored ACUs, one of the main problems is durability. This problem was most successfully solved in a color GUI of planar type alternating current, therefore this particular design of a color GUI is the most promising and has received wide industrial application.

A known ACI circuit comprising two dielectric plates, on one of which there are pairs of parallel indication electrodes coated with dielectric and stabilizing materials, and dielectric barriers, and on the other plate are control electrodes with a luminescent coating (Schinoda et al., “Improvemant of Luminance and Luinous Efficiency of Surface-Discharge color AC PDP, Sid, 91 Digest, p. 724).

The disadvantages of this GUI are low brightness due to a decrease in the area of the luminous luminescent coating within the indicator cells by the size of the control electrode and, in addition, high levels of control voltages due to the need to remove the open control electrode over a sufficiently large distance, eliminating the bombardment of it by plasma ions .

Known ACI AC, comprising a first dielectric plate with pairs of parallel dielectric coated indication electrodes located on its inner surface, a second dielectric plate, on the inner surface of which control electrodes coated with a phosphor and forming display elements forming dielectric electrodes, dielectric barriers are placed orthogonally to the indication electrodes located at least on one of the dielectric plates (RF Patent No. 2089964, CL H01J 17/49, publ. 09/10/1997).

The disadvantage of this design is the low reliability of control due to the high level of control voltages due to large losses of charged particles on the walls of dielectric barriers.

Closest to the proposed design of the ACI GUI is a structure comprising a first dielectric plate with pairs of parallel indication electrodes coated on a dielectric surface located on its inner surface, a second dielectric plate, on the inner surface of which control electrodes coated with a phosphor and forming with electrodes are placed orthogonally to the indication electrodes indications display elements, dielectric barriers located at least on one of the dielectric plates, while optimizing the ratio of the geometric dimensions of the components of the display elements that determine the conditions of recording / quenching of discharges in the ACI of an alternating current (RF patent No. 2129317, class. H01J 17/49, publ. 04/20/1999 - prototype).

The disadvantage of this design is that the above ratios do not allow the most complete optimization of the geometric dimensions of the components of the display elements, since they do not reflect the working conditions of the display elements in the display mode, which leads to a decrease in the durability and reliability of the GUI.

The objective of the utility model is to create a color GUI of alternating current with high reliability of control by choosing the optimal thickness of the dielectric layer deposited on the surface of the indication electrodes.

The specified technical result in the implementation of the utility model is achieved by the fact that in the known GUI of alternating current containing the first dielectric plate with pairs of parallel indication electrodes located on its inner surface and coated with a dielectric, a second dielectric plate, on the inner surface of which control electrodes are placed orthogonally to the indication electrodes, luminophore coated and forming with display electrodes display elements, dielectric barriers located at At least on one of the dielectric plates, the thickness of the dielectric layer covering the display electrodes is in the range of 15 μm ≤h≤35 μm.

When this ratio is fulfilled, optimal conditions for the formation of a wall charge in the display elements are achieved, which ensures high reliability of the control of the color GUI of alternating current.

The analysis of the prior art by the applicant, including a search by patent and scientific and technical sources of information and identification of sources containing information about analogues of the claimed utility model, allowed to establish that the applicant did not find an analogue characterized by features identical to those of the claimed utility model, and the definition from the list identified analogues of the prototype, as the closest in the totality of the characteristics of the analogue, allowed to identify the set of essential in relation to the seen it technical result distinguishing features in the claimed subject matter set forth in the claims of the utility model. Therefore, the claimed utility model meets the requirement of "novelty."

The proposed design of the ISU AC is illustrated by drawings (Fig. 1, Fig. 2).

The design comprises a first dielectric plate 1 on which control electrodes 2 with a phosphor coating 3 are located, dielectric barriers 4 separating the display elements, a dielectric layer 5 of thickness h covering the indication electrodes 6 located on the second dielectric plate 7.

The ACI GUI works as follows. A reference voltage is applied to all display electrodes that does not change the state of the display elements. For selective ignition of the display elements, it is necessary to apply a part of the write voltage to the selected control electrodes, and another part to the selected indication electrodes. At the points of intersection of the selected control electrodes and indication electrodes, a discharge is excited, which is then picked up by subsequent pulses of the reference indication voltage. To change the information on the electrodes, it is necessary to apply blanking pulses and then repeat the “write” cycle again.

In the proposed ISU ac current condition

15 μm ≤h≤35 μm,

where h is the thickness of the dielectric coating on the display electrodes allows you to form the optimal level of parameters, ensuring uniform accumulation of wall charge over the area of the display electrodes, which allows you to create reliable control of the ACI AC.

The operating conditions of the display elements in the display mode are largely determined by the thickness of the dielectric covering the display electrodes. With a significant thickness of the dielectric layer h> 35 μm, the control voltages increase, and the operating current in the display element also decreases, which leads to a decrease in the brightness of the glow. With a decrease in the thickness of the dielectric layer h <15 μm, the probability of breakdowns of the dielectric coating increases, the influence of technological spread on the coating thickness, the quality of the coating material on the device increases, the operating current in the display element increases, which leads to overheating and increased energy consumption. Therefore, the thickness of the dielectric layer should be optimal and limited in the range of 15 μm ≤h≤35 μm.

An example of a specific implementation.

The color GUI of alternating current planar design contains two cladding glass plates. On the front glass plate, a system of indicating electrodes is formed, arranged in 0.8 mm steps, having a width of 0.4 mm, coated with a dielectric layer of low-melting glass and a layer of stabilizing material with magnesium oxide.The thickness of the dielectric coating on the indication electrodes is h = 25 μm.

On the lower glass plate, a system of control electrodes 0.25 mm wide, spaced 0.35 mm apart and coated with a phosphor, is formed between which dielectric barriers are made, restricting display elements having a size in the direction of the indication electrodes 0.35 mm.

When assembling the device, the front glass plate with indication electrodes is superimposed on the lower glass plate with control electrodes so that the electrodes are mutually perpendicular. The distance between the electrodes on the first and second glass plates is 0.6 mm.

After applying a sealing joint along the circuit of the device and its melting, the device is pumped out and Ne + 5% Xe is filled with a mixture of inert gases at a pressure of 300 mm Hg. Art. The thus produced ISU AC p.ind memory range ΔU = 50 ÷ 60 V, the voltage interval U ignition indicator zazh.ind ÷ 470 = 160 V, the control voltage U zazh.upr ignition gap = 70 ÷ 80 V, the overall brightness of the ISU equal to 400 ÷ 500 cd / m 2 . With these parameters, the ACI GUI is reliably controlled by low-voltage microcircuits, providing high and stable brightness during operation.

Thus, the claimed technical solution allows you to create a GUI AC with high reliability management.

Claims (1)

  1. A gas discharge AC display panel comprising a first dielectric plate with pairs of parallel dielectric coated indication electrodes located on its inner surface, a second dielectric plate, on the inner surface of which control electrodes coated with a phosphor and forming display elements with dielectric electrodes are placed orthogonally to the indication electrodes barriers located at least on one of the dielectric plates, characterized in that the thickness of the dielectric layer covering the display electrodes, is in the range 15 microns mkm≤h≤35.
    Figure 00000001
RU2013149581/07U 2013-11-06 2013-11-06 Ac discharge indicator panel RU138736U1 (en)

Priority Applications (1)

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RU2013149581/07U RU138736U1 (en) 2013-11-06 2013-11-06 Ac discharge indicator panel

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU185237U1 (en) * 2018-07-25 2018-11-28 Акционерное общество "Научно-исследовательский институт газоразрядных приборов "Плазма" (АО "ПЛАЗМА") Ac discharge indicator panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU185237U1 (en) * 2018-07-25 2018-11-28 Акционерное общество "Научно-исследовательский институт газоразрядных приборов "Плазма" (АО "ПЛАЗМА") Ac discharge indicator panel

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