CN1112719C - Luminous device and display be field-emitting plasma discharge - Google Patents

Abstract

The present invention relates to a luminous device with field-emitting plasma discharge, which comprises at least two gas discharge cavities, wherein electric discharge gas is filled in the cavities, and a luminescence powder layer, at least one pair of discharge electrodes and at least one field-emitting trigger electrode are arranged on the cavity wall. When sustaining voltage is added between a pair of gas discharge electrodes, the discharge cavities do not discharge; when an ignition voltage pulse is inputted in the field-emitting trigger electrodes, gas discharge is triggered by initial charged particles generated by field emission; ultraviolet light generated by discharge can excite luminescence powder on the cavity wall so as to send out light with the needed color, and thus, the present invention has the characteristics of high luminous efficiency, high brightness, high memory function, etc.

Description

Field emission plasma discharge light-emitting device and display

The present invention relates to a kind of gas discharge device that triggers by the field emission, particularly a kind of field emission luminescence of plasma device and display that has high-luminous-efficiency very, very high brightness and memory function is arranged can be used for illumination, ultraviolet source and monochrome, polychrome, panchromatic picture and text and image and shows.

In the prior art, plasma scope (PDP) has interchange (ACPDP), and direct current (DCPDP) and alternating current-direct current mix (AC-DC PDP) three kinds.At present be used to make the displays such as plate color TV about 40 inches, it has advantages such as colored good, that contrast is high, image quality is good.But the only about 1lm/W of its luminous efficiency, luminance shortage, the power consumption height, cost is very high simultaneously, has influenced applying of it.

Plasma scope is a kind of gas discharge device, and colour plasma display all utilizes the positive column of glow discharge luminous mostly.Figure 1 shows that voltage-to-current (V-I) graph of a relation of typical gas discharge.1 is initial strip electrochondria subarea shown in the figure, and 2 are the dark discharge district, and 3 for owing the brightness district, and 4 are the normal glow discharge district, and 5 are the abnormal glow discharge district, and 6 is transition region, and 7 are the arc discharge district.Owing brightness district 2 is first negative differential resistance region.Plasma scope works in glow discharge zone, and first negative differential resistance region often is used to be manufactured with the plasma scope of memory function.

As seen from Figure 1, need provide certain initial charged particle for obtaining stable glow discharge.For this reason, the normal auxiliary discharge device that adopts provides initial charged particle in the plasma scope of prior art.Because the firing voltage of gas discharge is the function of gas pressure (p) and die opening (d), under same air pressure conditions, the die opening of this auxiliary discharge device should be approaching or be equaled to show the sparking electrode spacing.In alternating current-direct current hybrid plasma display, this initial charged particle is then provided by AC gas discharge.Be also shown in by Fig. 1, the electric current of initial charged particle shown in 1 district is minimum among the figure, only needs about 10 ^-8A, not only efficient is low to provide the method for initial charged particle with independent auxiliary discharge and charged particle diffusion way, and the waste energy also can produce unwanted background luminescence, and contrast is descended.

In addition, the inefficient Another reason of existing plasma scope is that the sparking electrode spacing is very little, bigger sparking electrode spacing can get higher luminous efficiency, increasing this sparking electrode spacing is one of effective way that improves the plasma scope luminous efficiency, but at this moment, the discharge spacing of auxiliary discharge also needs to increase simultaneously, yet crust Xing curve of being known by everybody as can be known, under same air pressure, electrode spacing is too little, and the firing voltage of its discharge will swash sharp increase and add.Thereby auxiliary discharge will expend more multipotency, produce more bias light.

The objective of the invention is to overcome above-mentioned existence deficiency, utilize long sparking electrode spacing and only need the field emission principle of very little energy that enough initial charged particles are provided and provide a kind of, go to cause glow discharge, thereby obtain a kind of high efficiency, the field emission plasma gas Discharge illuminating device and the display of high brightness.

The objective of the invention is to finish by following technical solution, a kind of emission plasma gas Discharge illuminating device, it comprises at least one vacuum-packed gas discharge chamber, be filled with discharge gas in the chamber, at least one pair of gas discharge electrode and lead-in wire thereof and at least one emission trigger electrode and lead-in wire thereof, this emission trigger electrode is positioned at by the gas discharge electrode.When adding between described pair of discharge electrodes when keeping voltage, gas discharge chamber does not discharge, launch then and there when adding an igniting pulse between trigger electrode and the sparking electrode adjacent with it, promptly can produce initial charged particle between them because of the field emission, cause gas discharge and luminous, this discharge and luminous can always maintenance, are until keeping that voltage is turned off or when being lower than minimum discharge voltage, discharge and luminously just extinguish, promptly described device has memory function.

The added voltage of keeping is interchange, direct current or dc pulse voltage between described gas discharge electrode.

Described gas discharge electrode is made by electric conducting materials such as metal or tin indium oxides.

Described gas discharge chamber is made by glass, quartz or pottery.

The gas that is filled in the described gas discharge chamber is mercury, neon, argon, helium, xenon or other gas.

Purpose of the present invention also can be finished by following technical solution, a kind of emission plasma discharge light-emitting device, it mainly includes a vacuum-packed gas discharge chamber, be filled with discharge gas in the chamber, at least one pair of gas discharge electrode and lead-in wire thereof and at least one emission trigger electrode and lead-in wire thereof, described emission trigger electrode is positioned at by a certain sparking electrode, described each link to each other with external voltage after gas discharge electrode is had at least resistance of electrode series connection, and an emission trigger electrode links to each other with ignition voltage behind electric capacity of series connection, and be added with between every pair of gas discharge electrode that direct current is kept voltage or DC pulse is kept voltage, for example one of them electrode is kept voltage through resistance and positive direct-current and is joined, another electrode grounding, at this moment discharge cavity does not discharge, launch trigger electrode then and there and add that by electric capacity an igniting is during pulse, produce enough initial charged particles because of the field emission between field emission trigger electrode and its sparking electrode nearby, cause gas discharge and luminous, this discharge and luminous can always remaining to are describedly kept that voltage is turned off or are just stopped when being lower than minimum discharge voltage.

Aforesaid discharge cavity can be one straight or curved the glass or the quartz ampoule of definite shape.

There is not luminescent powder on the inwall of aforesaid discharge cavity, to obtain a kind of ultraviolet source.

Be coated with on the inwall of aforesaid discharge cavity and be shaped on the luminescent powder layer, with the visible light that obtains required color or the ultraviolet light of required wavelength.

Can be added with color filtering mean on the light outgoing window of aforesaid discharge cavity.

Aforesaid series resistance also can be used constant current tube instead, makes discharging current keep constant, to obtain very stable luminous of brightness.

Aforesaid emission trigger electrode also can be close to a sparking electrode place outside discharge cavity, form an electric capacity between the sparking electrode of this electrode and vicinity, and firing pulse can go to cause the discharge cavity discharge through this electric capacity.

Purpose of the present invention also can be finished by following technical solution, a kind of emission plasma scope, it mainly comprises NXM gas discharge chamber, each discharge cavity has pair of discharge electrodes and a field emission trigger electrode, in the every pair of sparking electrode one links to each other with the horizontal scanning line bus through a resistance, and each of each row emission trigger electrode links to each other with data/address bus through electric capacity respectively.When certain one scan bus adds scanning voltage, promptly add when keeping voltage between the sparking electrode of each discharge cavity that links to each other with this scan line, each discharge cavity will be firing pulse by the data pulse by each data/address bus, the emission trigger electrode causes Discharge illuminating through the field, this luminous will always being held until line-sweep voltage is finished, luminously just stop, the luminosity of each discharge cavity was determined by the time between the back edge of data pulse forward position and scanning voltage.So delegation carries out repeatedly along a line scanning, and the image that can obtain gray scale shows.

Can scribble luminescent powder on the described gas discharge cavity wall, the ultraviolet light that gas discharge produces can excite described luminescent powder to produce visible light, and not homochromy luminescent powder can get not homochromy visible light.

Can scribble respectively on the described gas discharge cavity wall red, indigo plant, green luminescent powder, one group is red, indigo plant, a pixel is formed in green light emitting discharge chamber, controls the brightness of discharge cavity of all kinds respectively, can obtain COLOUR IMAGE VISUALIZATION OF HE.Can be added with color filtering mean on the light outgoing window of each gas discharge chamber.

Described each discharge cavity can be discrete device, also can be to be incorporated into a display, also can make the module that each device has NXM discharge cavity, and several module spliced are connected into a large screen display.

Purpose of the present invention also can be finished by following technical solution, a kind of field emission body plasma display, it comprises the NXM of a portion gas discharge chamber, each discharge cavity has pair of discharge electrodes and a field emission trigger electrode, an electrode in the every pair of sparking electrode is kept voltage through being connected to a direct current behind the resistance separately, another electrode is whole ground connection then, at this moment all discharge cavities Discharge illuminating not.When the field emission trigger electrode of a certain discharge cavity receives a data voltage when being firing pulse, this discharge cavity is a Discharge illuminating, turns off or is lower than at low discharge voltage until keeping voltage, and Discharge illuminating just stops.

It is that turn off once each visual display field or each son field that described direct current is kept voltage, promptly all discharge cavities all extinguish, relay electroluminescence to wait for after next firing pulse arrives, so get final product to such an extent that peak brightness is a duty ratio near the monochrome of one very high brightness, polychrome or panchromatic picture and text and image show.

Scribble luminescent powder on the described gas discharge chamber wall, the ultraviolet light that gas discharge produces can excite described luminescent powder to produce visible light, and not homochromy luminescent powder can get not homochromy visible light, thus the monochrome of obtaining, polychrome and panchromatic light.

Can be added with color filtering mean on the light outgoing window of aforesaid each gas discharge chamber.

Aforesaid each discharge cavity can be discrete device, also can be to be incorporated into a display, also can make the module that each device has NXM discharge cavity, and several module spliced are connected into a large screen display.

Description of drawings is as follows:

Fig. 1 is voltage-to-current (V-I) graph of a relation of typical gas discharge.

Fig. 2 is principle schematic of of the present invention emission plasma discharge light-emitting device.

Fig. 3 is a luminescent device of of the present invention emission plasma discharge light-emitting device

The schematic diagram of embodiment.

Fig. 4 is the schematic diagram of embodiment of another luminescent device of emission plasma discharge light-emitting device of the present invention.

Fig. 5 is the schematic diagram of an embodiment of of the present invention emission plasma scope (FEPDP).

Fig. 6 is the voltage waveform and the luminescent waveform figure of a kind of driving method of shown in Figure 5 emission plasma scope.

Fig. 7 is the voltage waveform and the luminescent waveform figure of another driving method of shown in Figure 5 emission plasma scope.

Fig. 8 is the schematic diagram by an embodiment of of the present invention emission plasma scope.

Fig. 9 is the voltage waveform and the luminescent waveform figure of field emission plasma scope shown in Figure 8.

The present invention will be described in detail below in conjunction with above-mentioned accompanying drawing:

Fig. 2 is principle schematic of of the present invention emission plasma discharge light-emitting device.As shown in Figure 2, a vacuum-packed gas discharge chamber 1 is arranged, it is made by glass or quartz or pottery, and the wall 2 of discharge cavity is filled with discharge gas in the discharge cavity, as mercury, neon, argon, helium, xenon or other gas.Have a pair of gas discharge electrode 3a and 3b and their lead-in wire 4 in the discharge cavity 1 at least, described electrode 3a and 3b are made by electric conducting materials such as metal, tin indium oxides, on one of sparking electrode (for example 3a) side an emission trigger electrode 5 and its lead-in wire 6 are arranged, the lead-in wire 5 that reaches them is made by tungsten, nickel, molybdenum, Dumet wire or other electric conducting materials, and its shape can be silk, sheet, barrel-shaped or other shape.

Between pair of discharge electrodes, add interchange, when direct current or DC pulse are kept voltage, because this keeps the firing voltage that voltage is lower than the gas discharge, gas discharge does not take place in discharge cavity 1, at this moment if add an electric pulse between emission trigger electrode 5 on the scene and the electrode 3a, make them produce enough initial charged particles because of the field emission, can cause the gas discharge in the discharge cavity, produce luminous, because the existence of negative differential resistance region 3 shown in Figure 1, after the electric pulse of emission trigger electrode on the scene is turned off, gas discharge still can keep, up to keeping that voltage is turned off or when being lower than minimum discharge voltage, Discharge illuminating just stops, and promptly of the present invention emission gas discharge device has memory function.

Of the present invention emission gas discharge device can be used for making luminescent device and plasma scope.

Fig. 3 is the schematic diagram of a direct current luminescent device of of the present invention emission gas discharge device.It comprises a vacuum-packed discharge cavity 7, be filled with discharge gas in the cavity, a pair of gas discharge electrode 8a, 8b and they leaded 9 are arranged in the discharge cavity, lead-in wire leads to outside the chamber by the sealing discharge cavity, to connect external voltage, an electrode 8a side is provided with an emission trigger electrode 11 and goes between 12 therein.When described device is used DC operation, add between electrode 8a and the 8b that a direct current is kept voltage or DC pulse is kept voltage, electrode 8b links to each other with positive voltage+V through a resistance 13, and 8a ground connection, the intracavity gas that at this moment discharges does not produce gas discharge.If add an igniting electric pulse 15 by electric capacity 14 on the emission trigger electrode 11 on the scene, it is luminous with generation to cause gas discharge to produce enough initial charged particles between emission trigger electrode 11 then on the scene and the sparking electrode 8a, and 16 is earth resistance.Described emission trigger electrode 5 made by tungsten, nickel, molybdenum, Dumet wire or other electric conducting materials, and its shape can be silk, on chip, barrel-shaped or other shape.Can there be luminescent powder on the inwall of described discharge cavity, to obtain a kind of ultraviolet source.In order to obtain the ultraviolet ray of not homochromy visible light or required wavelength, on the inwall of gas discharge chamber 7, also can add luminous bisque 10, the ultraviolet ray that the ultraviolet ray that gas discharge produces can excite described luminescent powder 10 to produce visible light or required wavelength, with different luminescent powders, can obtain the ultraviolet ray of not homochromy light or different wave length.Discharge cavity 7 shown in Fig. 3 can be one straight or curve the pipe of definite shape, it is made by glass or quartz.

Device shown in Figure 3 can be used for making visible light or ultraviolet source, has that efficient height, brightness height, life-span are long, drive circuit is simple, light does not glimmer, and exchanges to disturb and advantage such as memory function is arranged, and can be used for illumination and demonstration etc.

Very stable luminous in order to obtain, the resistance 13 shown in Fig. 3 also can change constant current tube into, and the discharging current of discharge tube is constant can to obtain the very stable light source of brightness thereby make.

The resistance of the resistance 13 shown in Fig. 3 also can be adjustable, to obtain the light source of adjustable brightness.

Fig. 4 is the schematic diagram of embodiment of another luminescent device of emission plasma discharge light-emitting device of the present invention.It is characterized in that an emission trigger electrode 17 is positioned at the outer and nearly sparking electrode 8a place of discharge chamber wall, for example electric conducting materials such as the circle of one on chamber wall outer surface silver slurry layer, tin indium oxide, aluminium.Form an electric capacity between described electric conducting material 17 and electrode 8a, firing pulse 18 is provided electric cavity discharging through this capacitive touch, and other is then same as shown in Figure 3.

Of the present invention emission gas discharge device also can be used for making the matrix form display.Be the schematic diagram of an embodiment of matrix form of the present invention field emission plasma scope as shown in Figure 5.Described display matrix is the display matrix of NXM, form by scan line X1, X2.....XN data/address bus Y1, Y2.....YM and a series of discharge cavity, among the figure (1,1), (1,2), (2,1) and (2,2) are described 4 discharge cavities in the emission plasma scope, sparking electrode 19a and 19b are arranged in the discharge cavity, and their connected mode as shown in Figure 5.The electrode 19a of each row interconnects and connects voltage V01, V02.....V0N, 19b is through resistance 21 and horizontal scanning line X1, X2.....XN links to each other, and each emission trigger electrode 20 of each row discharge cavity links to each other with data/address bus Y1, Y2.....YM through electric capacity 22 separately, in order to send into the brightness data signal.Between each emission trigger electrode 20 and the sparking electrode 19b discharge resistance 23 is arranged.

Fig. 6 is a kind of voltage waveform of type of drive of field emission plasma scope of Fig. 5 and luminous brightness waveform figure.X1, X2....XN are line-sweep voltage, and delegation connects a line scanning; Y1, Y2....YM are the luminance signal bus, and 26 for triggering field emission trigger impulse, the i.e. firing pulse of discharge cavity Discharge illuminating among the figure, V01, V02....V0N be ground connection, and luminosity is proportional to time tON, promptly be proportional to behind emission trigger impulse 26 forward positions and the scanning voltage along between time, as shown in Figure 6, L (1,1) is a discharge cavity (1,1) brightness waveform, L (2,1), L (1,2), L (2,2) respectively is a discharge cavity (2,1), (1,2) and the brightness waveform of (2,2).Different tON can obtain different brightness, thereby the image that can obtain gray scale shows.Monochromatic multicolor luminous powder is arranged on each discharge chamber wall, red, blue, green luminescent powder is for example arranged respectively, a pixel is formed in one group of red, blue, green light emitting discharge chamber, and brightness red, blue, green chamber is respectively organized in control, can show monochrome, polychrome or full color picture and text and image etc.

Fig. 7 is the oscillogram of another kind driving method of the field emission plasma scope of Fig. 5.VX1 among the figure, VX2....VXN is for being added in X1 among Fig. 5, the DC pulse of X2.....XN is kept voltage, wherein T is one or the time of a son field that image shows, Fig. 7 is the example of molecular field, T1 is the first son field among the figure, T2 is the second son field ...., each can be divided into several height field, for example to obtain 256 grades of gray scales, then can be divided into 8 son fields, each son field is added to the pulse duration of the voltage on the line scanning electrode X and can selectes by luminance weights, for example T1 to T8 is respectively 128,64,32,16,8,4,2,1, tE is the erasing time, promptly at this moment keep pulse and turn off or be lower than at low discharge voltage, then each discharge cavity that links to each other with this row all extinguishes, and waits for the signal of next son field.VY1, VY2....VYM are the brightness data pulse voltage that is added on Y1, the Y2....YM, V01, V02....V0N be added in each the row sparking electrode negative electrode 19a on strobe pulse voltage.VY1, V02......VYM and V01, V02....V0N are positive and negative anti-phase, and respectively all less than the ignition voltage of field emission trigger electrode, but the two addition then is equal to or greater than ignition voltage, and the discharge cavity that promptly has only two voltages to arrive simultaneously could Discharge illuminating.Shown in L among the figure (1,1), L (1,2), L (2,1) and L (2,2), this Discharge illuminating can be kept always, keeps the tE of voltage VX up to DC pulse, and discharge is just extinguished.Said method can obtain the gray scale of 256 grades of red, blue, green each looks, can have the brightness image of 1,670,000 kinds of colors and Geng Gao to show.

Fig. 8 is the another embodiment schematic diagram of of the present invention emission plasma scope, and its discharge cavity is same as shown in Figure 4, only the connected mode difference.Each sparking electrode 19b interconnects through resistance 21 among Fig. 8, add positive direct-current keep voltage (+V), all sparking electrode 19 ground connection, each discharge cavity is control respectively separately then.

Fig. 9 is voltage waveform and the brightness waveform figure of Fig. 8, and each discharge cavity is control respectively separately, and T is one and the time of a son field that image shows among Fig. 9.+ V is among Fig. 8+V, and when each or a son finished, this positive voltage drops was to VG, and this VG can be zero or be lower than any voltage of minimum discharge voltage, all extinguishes so that all discharge cavities are luminous, waits for the field emission triggering signal of next or next son field.

Field emission plasma scope shown in Fig. 8 and 9 can obtain the peak brightness duty ratio near equaling 1 demonstration, can obtain the very display of high brightness of the utmost point, can be used for monochrome, and polychrome or panchromatic picture and text and image show.

Each discharge cavity of Fig. 5 and field emission plasma scope shown in Figure 8, it can be discrete device, also can be to be incorporated into a display, also can make the module that each device has NXM discharge cavity, several module spliced be connected into a large screen display.

The demonstration colored better in order to obtain, that contrast is higher, each discharge cavity light outgoing window of Fig. 5 and emission plasma scope in field shown in Figure 8 can add color filtering mean 25.

The present invention compared with prior art has following features: one, and luminous efficiency is very high, uses When jumbotron showed, efficient can be up to more than the 15lm/w; Two, drive circuit is simple, light Do not glimmer not exchange and disturb, image quality is good; Three, the life-span is long; Four, the brightness height, available In the monochrome of indoor or outdoors, polychrome or panchromatic picture and text and image show; Five, also can be used as light The back illumination of illumination and liquid crystal display etc. is used in the source.

Claims (13)

1, a kind of emission plasma discharge light-emitting device, it is characterized in that it includes: a vacuum-packed gas discharge chamber (7), be filled with discharge gas in the chamber, a pair of gas discharge electrode (8a, 8b) and their lead-in wire, trigger electrode (11) and lead-in wire thereof are launched in a field, described field emission trigger electrode (11) is positioned at by a certain sparking electrode, there is an electrode resistance of series connection (13) back to link to each other in the described pair of discharge electrodes with external voltage, and an emission trigger electrode (11) links to each other with ignition voltage (15) in an electric capacity of series connection (14) back, connection one discharge resistance (16) between emission trigger electrode (11) and the adjacent with it sparking electrode (8a) is added with between every pair of gas discharge electrode that direct current is kept voltage or DC pulse is kept voltage.

2, emission plasma discharge light-emitting device as claimed in claim 1, it is characterized in that described discharge cavity (7) be one straight or curved the glass or the quartz ampoule of definite shape.

3, emission plasma discharge light-emitting device as claimed in claim 1 is characterized in that not having luminescent powder on the inwall of described discharge cavity (7), to obtain a kind of ultraviolet source.

4, emission plasma discharge light-emitting device as claimed in claim 1 is characterized in that scribbling luminous bisque (10) on the inwall of described discharge cavity (7), with the visible light that obtains required color or the ultraviolet light of required wavelength.

5, as claimed in claim 1 emission plasma discharge light-emitting device, the resistance that it is characterized in that described resistance (13) also is adjustable, to obtain the light source of adjustable brightness.

6, emission plasma discharge light-emitting device as claimed in claim 1 is characterized in that the available constant current tube of described resistance (13) replaces, and makes discharging current constant, to obtain very stable luminous of brightness.

7, a kind of matrix form field emission plasma display, it is characterized in that it comprises NXM gas discharge chamber, each discharge cavity has pair of discharge electrodes (19a, 19b), one of them sparking electrode is other to have the field to launch a trigger electrode (20), one (19b) in every pair of sparking electrode of each discharge cavity of each row links behind a resistance (21) mutually, another sparking electrode (19a) is connected to each other, each of each row emission trigger electrode (20) passes through electric capacity (22) respectively and links to each other with data-signal, between an emission trigger electrode (20) and its sparking electrode (19a) nearby discharge resistance (23) is arranged.

8, matrix form field emission plasma display as claimed in claim 7, a sparking electrode (19b) that it is characterized in that each row discharge cavity links to each other with horizontal scanning line through a resistance (21) back, line-sweep voltage is a dc pulse voltage, and delegation connects a line scanning; Each row emission trigger electrode (20) passes through electric capacity (22) respectively and links to each other with brightness data bus Y1, Y2......YM, the other sparking electrode ground connection of all emission trigger electrodes.

9, matrix form field emission plasma display as claimed in claim 7, a sparking electrode (19b) that it is characterized in that each row discharge cavity links to each other with horizontal scanning line through a resistance (21) back, and add that DC pulse keeps voltage, each visual display field is divided into the plurality of sub field, and the pulse duration of the line-sweep voltage of each son field is selected by luminance weights; The negative electrode (19a) of each row discharge cavity discharge electrode interconnects, and adds strobe pulse V01, V02......V0N, and each row discharge cavity field emission trigger electrode interconnects, and adds brightness data pulse voltage VY1, VY2......VYM; Strobe pulse and brightness data pulse are positive and negative anti-phase, all launch the electric ignition voltage of trigger electrode respectively less than the field, but the two addition then is equal to or greater than ignition voltage, the discharge cavity ability Discharge illuminating that promptly has only two voltages to arrive simultaneously, this Discharge illuminating can be kept always, keep voltage up to DC pulse and be reduced to below the minimal maintenance voltage or be zero, discharge is just extinguished.

10, matrix form field emission plasma display as claimed in claim 7, each that it is characterized in that described each discharge cavity kept voltage+V through all being connected to direct current behind the resistance (21) separately to sparking electrode (19b), and another sparking electrode (19a) is whole ground connection then; Each emission trigger electrode (20) then passes through electric capacity (22) separately and links to each other with data/address bus Y1, Y2......YM, in order to send into the brightness data signal; Described direct current is kept voltage and is turned off once for each visual display field or each field or be reduced to minimal maintenance voltage with next time, all discharges are all extinguished, relay electroluminescence to wait for after next firing pulse arrives, so get final product peak brightness to be duty ratio show near monochrome, polychrome or panchromatic picture and text and the image of one very high brightness.

11, matrix form as claimed in claim 7 field emission plasma display is characterized in that being coated with on described each gas discharge chamber wall and is shaped on luminescent powder, thereby can obtain the display of required color.

12, matrix form field emission plasma display as claimed in claim 11, it is characterized in that being coated with respectively on described each gas discharge chamber wall and be shaped on red, blue, green luminescent powder, a pixel is formed in one group of red, blue, green light emitting discharge chamber, control the brightness of discharge cavity of all kinds respectively, can obtain COLOUR IMAGE VISUALIZATION OF HE, and on the light outgoing window of each gas discharge chamber, be added with color filtering mean (25).

13, matrix form field emission plasma display as claimed in claim 7, it is characterized in that described each discharge cavity is discrete device, an or display that is incorporated into, or make the module that each device has NXM discharge cavity, several moulds are spliced into a large screen display soon.

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