CN101127250B

CN101127250B - External light-shielding layer and display apparatus having the same

Info

Publication number: CN101127250B
Application number: CN2007101436060A
Authority: CN
Inventors: 朴大出; 金锡源; 具荣旻
Original assignee: Samsung Corning Precision Glass Co Ltd
Current assignee: Corning Precision Materials Co Ltd
Priority date: 2006-08-18
Filing date: 2007-08-14
Publication date: 2010-12-01
Anticipated expiration: 2027-08-14
Also published as: KR20080016428A; MX2007009089A; JP2010266898A; JP4842392B2; CN101127250A

Abstract

Disclosed is a display apparatus comprising a panel assembly including a plurality of light-emitting cells divided into a light-emitting region and a non light-emitting region surrounding the light-emitting region, as viewed from a viewer, and a display filter disposed on the panel assembly and including an external light-shielding layer, the external light-shielding layer having light-shielding patterns formed on a side of the external light-shielding layer, wherein an area of the light-emitting region occupies about 60% or more of a total area of the plurality of light-emitting cells, and wherein a bias angle formed by an advancing direction of the light-shielding pattern and a longitudinal side of the panel assembly is about 5 degrees or less. The external light-shielding layer is applied to the display apparatus, thereby effectively preventing the moire phenomenon from being occurred.

Description

External light screening layer and have a display device of this external light screening layer

The cross reference of related application

The application requires to be filed in the korean patent application 10-2006-0078377 of Korea S Department of Intellectual Property and to be filed in the rights and interests of the korean patent application 10-2007-0042236 of Korea S Department of Intellectual Property on April 30th, 2007 on August 18th, 2006, and the disclosure of above-mentioned patented claim is incorporated this paper at this by reference.

Technical field

The display device that the present invention relates to a kind of external light screening layer and have this external light screening layer, more specifically, relate to and a kind ofly can increase the contrast in the bright chamber and prevent the external light screening floor of moore phenomenon and display device with this external light screening floor.

Background technology

Along with modern society becomes more and more information-based, show that with image the technology of relevant parts and device significantly develops, and these parts and device are just becoming universal.Adopt the display device of relevant parts of photoelectron and device significantly popularizing and be used for supervising device of television equipment, PC or the like.And it is bigger thinner that display device is just becoming.

Compare with the cathode ray tube (CRT) of the existing display device of representative, plasma display (PDP) device receives an acclaim just day by day as display device of future generation, has also satisfied the trend that becomes bigger and thinner simultaneously.The PDP device utilizes the gas discharge phenomenon display image, and shows good display characteristic, for example, and display resolution, brightness, contrast, image retention, visual angle, or the like.And, because the PDP device is simpler for approaching luminous display unit and any other display device of its amplification ratio, thereby be regarded as having the characteristic that is suitable for following High-Quality Digital Television most usually, therefore, the PDP device is just receiving an acclaim as display device and is substituting CRT.

Direct current (DC) voltage or interchange (AC) voltage and electrode between produce gas discharge of PDP device by being applied to electrode.At this, produce ultraviolet light.So, by the ultraviolet excitation fluorescence, thus luminous.

But, the defective that the PDP device has is, the electromagnetism that is sent (EM) radiation and near infrared (NI) radiation are bigger for drive characteristic, the surface reflectivity of fluorescence is bigger, and owing to causing excitation less than CRT from helium (He) that is used as sealing gas or the orange-colored light that xenon (Xe) is sent.

In addition, the EM radiation and the NI radiation that produce in the PDP device may produce deleterious effect to human body, and may cause the sensitive equipment such as wireless telephone, remote controllers malfunctioning.Therefore, in order to use the PDP device, need to stop the emission measure of the EM radiation of sending from the PDP device and NI radiation to increase to and surpass predetermined level.Employing has the PDP filtrator of function such as EM radiation shield function, NI radiation shield function, surperficial anti-glare function, increase excitation, is used to carry out EM radiation shield and NI radiation shield and reduces reflected light simultaneously and the increase excitation.

The PDP device is made by panel assembly that comprises the discharge space that produces gas discharge phenomenon and the PDP filtrator that is used for EM radiation shield and NI radiation shield.Because the PDP filtrator is assembled in the front unit of panel assembly, thereby it need have transparency, thereby carries out function of shielding in luminous.

Employing is according to the PDP device of conventional art, and under the brighter condition of outside surface, that is, under the condition of bright chamber, exterior light can be passed through PDP filtrator entering surface board component.Correspondingly, between incident light that in the discharge space of panel assembly, produces and the exterior light that enters through the PDP filtrator from outside surface, overlap.Correspondingly, contrast reduces under the condition of bright chamber, and therefore, the onscreen display capability of PDP device reduces.

Summary of the invention

One aspect of the invention provides a kind of external light screening layer that is used for display filter, and it can increase the contrast in the bright chamber and prevent moore phenomenon.

One aspect of the invention also provides the display device with external light screening layer, and it can prevent moore phenomenon.

According to an aspect of the present invention, provide a kind of external light screening layer that is used for display filter, described external light screening layer comprises: the basal substrate that comprises transparent resin; With the light shield pattern that on the surface of described basal substrate, is separated from each other preset space length, be about 5 degree or littler wherein by the extension direction of described light shield pattern and the formed drift angle of longitudinal edge of described basal substrate.

According to a further aspect in the invention, provide a kind of display filter, it comprises: filter base; The basal substrate that comprises transparent resin; With the light shield pattern that is separated from each other preset space length on the surface of described basal substrate, wherein, the drift angle that is formed by the longitudinal edge of the extension direction of described light shield pattern and described basal substrate is about 5 degree or littler.

According to another aspect of the invention, provide a kind of display device, comprising: have the panel assembly of a plurality of luminescence units, described luminescence unit is divided into light-emitting zone and centers on the non-luminous region of described light-emitting zone by beholder's finding; And display filter, it is arranged on the described panel assembly and comprises the external light screening layer, described external light screening layer has the light shield pattern that is formed on external light screening layer one side, wherein, the area of described light-emitting zone account for described a plurality of luminescence units the total area about 60% or more, and be about 5 degree or littler by the formed drift angle of longitudinal edge of the extension direction of described light shield pattern and described panel assembly.

But, those skilled in the art will appreciate that the display device that in fact is difficult to realize to have 100% desirable luminosity factor.

Preferably, the drift angle be in about 1.5 spend about 4 the degree scopes in.

A plurality of partition walls that described panel assembly comprises prebasal plate, separates towards the metacoxal plate of described prebasal plate and a plurality of discharge spaces that will form between described prebasal plate and described metacoxal plate.

And described panel assembly comprises a plurality of electrodes that are used for causing surface-discharge on the side surface of described partition wall.

Particularly, described panel assembly comprises: transparent front substrate; The metacoxal plate that be arranged in parallel with described prebasal plate; A plurality of upper partition walls, it is set between described prebasal plate and the described metacoxal plate and is suitable for separating described discharge space; First sparking electrode and second sparking electrode, thus it is arranged in the described upper partition wall around described discharge space; A plurality of lower partition walls, it is set between described upper partition wall and the described metacoxal plate; Fluorescence coating, it is arranged in the described discharge space; With the discharge gas that is injected in the described discharge space.In this case, described upper partition wall and described lower partition wall form grid shape respectively.

And any in described prebasal plate and the metacoxal plate forms with the secret note shape, and described secret note is as a part in the described non-luminous region.That is to say that described non-luminous region is corresponding to described partition wall or described secret note shape.Transparent electrode pattern is formed on the described prebasal plate, is used for discharge.At this, described transparent electrode pattern is made to prevent the signal delay of described transparent electrode pattern by opaque metal, and further comprising the bus electrode pattern, it is through described light-emitting zone, thereby when surperficial parallel with described light-emitting zone when surface level is watched.

In addition, described bus electrode pattern separates with preset distance H1 with the surface of described light-emitting zone, and described surface is when being parallel to described bus electrode pattern when surface level is watched, and described H1 satisfies following formula:

H1≤0.3×L1

Wherein, L1 for another surperficial length of being connected of surface of described bus electrode pattern of being parallel to of described light-emitting zone.

Further, described external light screening layer comprises: the basal substrate that comprises transparent resin; With the light shield pattern that on the surface of described basal substrate, is separated from each other preset space length.

And described light shield pattern is corresponding in the black matrix form of wedge shape secret note form, wedge shape, the black waveshape of wedge shape, planar-shaped secret note form, the black matrix form of planar-shaped and the black waveshape of planar-shaped any.

In addition, described display filter adopts bonding agent to be bonded to a side of described panel assembly.

Other aspect of the present invention, feature and/or advantage will be hereinafter partly the setting forth of this instructions, and partly become clear by this instructions, perhaps can be learned by practice of the present invention.

Description of drawings

These and/or others of the present invention, feature and advantage will be by hereinafter for the description of exemplary embodiment and the clear and easy to understand that becomes in conjunction with the accompanying drawings, and described accompanying drawing is as follows:

Fig. 1 is the indicative icon exploded perspective view of plasma display (PDP) device according to an exemplary embodiment of the present invention;

Fig. 2 is the cut-open view of diagram according to the PDP filtrator of exemplary embodiment of the present invention;

Fig. 3 is the stereographic map that diagram is applied to the external light screening layer of PDP filtrator shown in Figure 2;

Fig. 4 is the schematic plan view of diagram according to a plurality of luminescence units of the panel assembly of exemplary embodiment of the present invention;

Fig. 5 is the exploded perspective view of diagram according to the panel assembly of the PDP device of exemplary embodiment of the present invention;

Fig. 6 is the schematic plan view that illustrates a plurality of luminescence units of panel assembly as shown in Figure 5;

Fig. 7 is the exploded perspective view of diagram according to the panel assembly of the PDP device of another exemplary embodiment of the present invention; With

Fig. 8 is the cut-open view along the line I-I ' intercepting of Fig. 7.

Embodiment

Now will be in detail with reference to each exemplary embodiment of the present invention, the example of these embodiment is illustrated in the accompanying drawing, and wherein, identical Reference numeral refers to components identical in the text.Hereinafter described exemplary embodiment is intended to by reference accompanying drawing explaination the present invention.

Fig. 1 schematically illustrates the exploded perspective view of plasma display (PDP) device according to an exemplary embodiment of the present invention.As shown in Figure 1, according to an exemplary embodiment of the present invention the structure of PDP device 100 comprise housing 110, covering shell 110 tops lid 150, be contained in the drive circuit board 120 in the housing 110, the panel assembly 130 that comprises the discharge space that produces gas discharge phenomenon and PDP filtrator 140.PDP filtrator 140 is included in the conductive layer on the transparency carrier, and this conductive layer comprises high conductive material, and conductive layer is grounded to housing 110 by covering 150.Particularly, electromagnetism (EM) radiation that produces by panel assembly 130, before arriving the beholder, the lid 150 of ground connection and housing 110 by the conductive layer that uses PDP filtrator 140 and conductively-closed.

Hereinafter, will describe PDP filtrator 140 in detail.

Fig. 2 illustrates the cut-open view of PDP filtrator according to an exemplary embodiment of the present invention.Fig. 3 is the stereographic map of the used external light screening layer of diagram PDP filtrator shown in Figure 2.

As shown in Figure 2, the PDP filtrator 200 according to this exemplary embodiment comprises filter base 270 and external light screening layer 230.Filter base 270 comprises: transparency carrier 210 and have various function of shielding etc. and be formed at layer on the transparency carrier 210.

At this,, form filter base 270 by unordered transparency carrier 210, EM radiation shield 220 or the anti-reflecting layer 250 of piling up.Hereinafter, corresponding to the layer of EM radiation shield function and anti-reflection function, in this exemplary embodiment, be described to discrete layer, but the present invention is not limited to this.Particularly, can comprise at least one layer according to the filter base 270 of this exemplary embodiment, and each layer can have at least a function selected from the group that comprises EM radiation shield function and anti-reflection function.And filter base 270 can optionally have EM radiation shield function and anti-reflection function, perhaps only has a kind of function in EM radiation shield function and the anti-reflection function.

External light screening layer 230 is arranged on the surface of filter base 270.External light screening layer 230 be arranged on filter base 270 on the surface of panel assembly, that is to say, be arranged on the opposed surface of beholder position when PDP filtrator 200 is installed in the PDP device, but, the present invention is not limited to this, and external light screening layer 230 can be arranged on another surface of filter base 270.

External light screening layer 230 comprises support member 232, the light shield pattern 236 that forms at the basal substrate 234 that forms on the surface of support member 232 with in basal substrate 234.These light shield pattern 236 shielding panel assemblies enter from the outside surface of PDP filtrator to prevent exterior light 320.Light shield pattern 236 in this exemplary embodiment can comprise a plurality of wedge shape secret notes that are provided with in the mode that is separated from each other preset space length.In this exemplary embodiment, the basal surface of wedge shape secret note is arranged in the basal substrate in the mode towards panel assembly.

At this, the basal substrate 234 that forms light shield pattern 236 can be formed directly in filter base 270, and but, when form basal substrate 234 on support member 232 after, basal substrate 234 can combine with filter base 270, as shown in Figure 2.Support member 232 supports the basal substrate 234 that wherein forms light shield pattern 236.In exemplary embodiment shown in Figure 2, basal substrate 234 can combine by support member 232 with the surface of filter base 270, but the present invention is not limited to this.Particularly, because support member 232 is used for support base substrate 234, therefore, when external light screening layer 230 was arranged on filter base 270 another surperficial going up, basal substrate 234 can directly combine with filter base 270.

In exemplary embodiment of the present invention, support member 232 is preferably the transparent resin film with respect to UV transparent.Support member 232 material therefors can be polyethylene terephthalate (PET), polycarbonate (PC), Polyvinylchloride (PVC) and so on.And, can use the layer of characteristic functions with filtrator for support member 232, for example, anti-reflecting layer 250, color correction layer 240, EM radiation shield 220 etc.

Light shield pattern 236 comprises described a plurality of wedge shape secret note, and each secret note has the xsect of wedge shape, and with the mode that is separated from each other preset space length be set at basal substrate 234 on the surface of panel assembly (not shown).

And light shield pattern 236 prevents exterior light 230 entering surface board component inside.

Basal substrate 234 be by can making by the resin of ultraviolet light polymerization, and light shield pattern 236 can be made by metal and can light absorbing black inorganic/organic material.Particularly, because conductivity is higher under the situation of using metal, that is, resistance is lower, therefore, when forming light shield pattern 236 by the interpolation metal powder, can control the resistance based on metal powder content.Correspondingly, light shield pattern 236 can be realized EM radiation shield function.And under the situation of material that uses surperficial melanism or ferrous metal, light shield pattern 236 can effectively be realized external light screening function and EM radiation shield function.And, comprise that the resin of the uV curable of carbon can be used for light shield pattern 236.

Light shield pattern 236 of the present invention can form by hot-press method, injection molding process or the similar approach of method for rolling and molding, use thermoplastic resin, wherein in injection molding process, thermoplastic or heat-setting resin is filled in the basal substrate 234, thereby reflects the opposite pattern of light shield pattern 236 therein fully.And when the resin of the uV curable that has formed basal substrate 234 had anti-reflection function, EM radiation shield function, color calibration function or their combination in any, external light screening layer 230 can be realized above-mentioned functions in addition.

The light shield pattern 236 that constitutes external light screening layer 230 absorbs exterior light 320, prevents exterior light 320 entering surface board components, and will reflex to the beholder fully from the incident light 310 of panel assembly.Correspondingly, can realize high-transmission rate and high-contrast with respect to visible light.

The PDP device preferably has at the high-transmission rate of visible light and high-contrast.At this, contrast can be as shown in Equation 1:

[formula 1]

Filter ground and see through the PDP filtrator when increasing the transmissivity of PDP device when being allowed to from the emitted light of panel assembly to have, white brightness and black light brightness all increase.Therefore, when the brightness of PDP device increased, total contrast reduced relatively.The method that traditional PDP device is adopted is, uses the PDP filtrator with the color correction film that contains black colorant and increases contrast to specific degrees rather than reduce the transmissivity of PDP filtrator.Under the situation of using traditional PD P device, contrast can be embodied as about 120: 1.

PDP filtrator of the present invention 200 uses light shield patterns 236, light shield pattern 236 absorbing light and do not use the color correction film that contains black colorant.At this, light shield pattern 236 partly absorbs the incident light 310 that sends from panel assembly, and the brightness of white light and black light is reduced predetermined portions, thereby increases contrast.And, according to formula 1, contrast corresponding to the corresponding function of reflected light brightness, and reflected light is included in the light of reflection after the exterior light 320 entering surface board components.At this, because exterior light 320 directly is absorbed in the light shield pattern 236, perhaps be absorbed in indirectly in the light shield pattern 236, therefore, though reflection occurs in the panel assembly, reflected light brightness can reduce.Correspondingly, though white light and black light all produce reflected light, the catoptrical brightness in the denominator of formula 1 reduces.Therefore, contrast can increase.

50% the time, minimize to about when the area ratio on the basal surface of light shield pattern 236 and the surface of basal substrate 234 is equivalent to about 20%, can realize maximum-contrast by making transmission loss.More preferably, when being equivalent to about 25%, the area ratio on the basal surface of light shield pattern 236 and the surface of basal substrate 234 35% the time, can realize better effect to about.When transmission of visible light remains on more than or equal to about 40% the time, use the PDP device of PDP filtrator 200 can obtain more than or equal to about 250: 1 contrast with external light screening layer 230.

And this outside light shielding layer 230 has in visible spectrum the transmissivity more than or equal to about 60%.From incident light 310 major parts of panel assembly with respect to external light screening layer 230 with vertical direction incident.And incident light 310 partially absorbs in light shield pattern 236.But, the most of directly transmission in the incident light 310 is by basal substrate 234, and therefore, this causes the transmissivity of PDP device to increase.

Referring again to Fig. 2, filter base 270 has sandwich construction, that is, and and at EM radiation shield 220 that forms on the surface of transparency carrier 210 and the anti-reflecting layer 250 that on transparency carrier 210 another surfaces, forms, or the like.The present invention is not limited to above-mentioned stacking order, and filter base 270 can have sandwich construction, and need not to consider the stacking order of transparency carrier 210, EM radiation shield 220 or anti-reflecting layer 250.

At this, use usually and make transparency carrier 210 such as the transparent plastic material of glass or acryl resin.And, can get rid of use transparency carrier 210 according to the type of filter base 270.

In this exemplary embodiment, transparency carrier 210 can comprise the mineral compound such as glass, quartz, and transparent organic polymer.

The transparency carrier 210 that is formed by the organic polymer component adopts acryl resin or polycarbonate usually, but the present invention is not limited to above-mentioned exemplary embodiment.Transparency carrier 210 preferably has big transparency and thermal resistance.And transparency carrier 210 can comprise the stacked body of condensate goods or condensate goods.With regard to the transparency of transparency carrier 210, be preferably more than approximately 80% with respect to visible light transmittance, and with regard to thermal resistance, preferably be higher than about 50 ℃ with respect to the transition temperature of glass.It is transparent in visible wavelength range that transparency carrier 210 used polymkeric substance require.And; the instantiation of the polymkeric substance that transparency carrier 210 is used has: polyethylene terephthalate (PET), polysulfones (PS), polyethersulfone (PES), polystyrene, PEN (polyethylene naphtalate), polyarylate, polyetheretherketone (PEEK), polycarbonate (PC), polypropylene (PP), polyimide, tri acetyl cellulose (TAC), polymethylmethacrylate (PMMA); or the like, but transparency carrier 210 used polymkeric substance are not limited to this.Consider that from price, thermal resistance and transparency aspect transparency carrier 210 preferably includes PET.

And, need to adopt high conductive material to cover display surface, with shielding EM radiation.Piled up the multi-layer transparent conductive film that conducts electricity reticular membrane, metallic film and have the transparent membrane of high index of refraction, can be used for EM radiation shield 220 according to this exemplary embodiment.In this exemplary embodiment, EM radiation shield 220 is formed on the surface of transparency carrier 210, that is, on the surface of panel assembly, but the present invention is not limited to above-mentioned arranging.

At this, the conduction reticular membrane can adopt grounded metal net, synthetic resin or the covering metal web with metal usually.The metal that makes up the conduction reticular membrane can adopt the metal with processibility and high conductivity, for example, and copper, chromium, nickel, silver, molybdenum, tungsten, aluminium, etc.

And in order to have EM radiation shield effect, multi-layer transparent conductive film can adopt the transparent membrane with high index of refraction, for example, and tin indium oxide (ITO) film.The multilayer film that will alternately pile up such as the metallic film gold, silver, copper, platinum, the palladium and the transparent membrane with high index of refraction such as indium oxide, tin oxide, zinc paste are as described multi-layer transparent conductive film.

Metallic film is by silver or contains the thin layer that silver alloy forms.Since when stacked multilayer silver and contain silver alloy and have high conductivity, with respect to the high reflectance of infrared light with respect to the high-transmission rate of visible light, so preferably use silver.But, because the chemistry and the physical stability of silver are low, thereby be easy to be damaged by the pollutant of surrounding environment, gas, heat, light and so on, therefore, also can use and contain silver and the alloy such as gold, platinum, palladium, copper, indium, tin with respect at least a other metal of ambient stable.

And the transparent membrane with high index of refraction has the transparency with respect to visible light, and because refractive index is different from metallic film, so have the effect that prevents that visible light from being reflected by metallic film.The concrete material that forms the transparent membrane of high index of refraction is oxide such as indium, titanium, zirconium, bismuth, tin, zinc, antimony, tantalum, cerium, neodymium, lanthanum, thorium, magnesium, potassium and combination thereof, zinc sulphide, or the like.

Though not shown, but can comprise the NI radiation shield in addition according to the filter base 270 of this exemplary embodiment.The NI radiation shield is formed by described panel assembly, and to causing the malfunctioning strong NI radiation of electron device such as wireless telephone, remote controllers to shield.

According to this exemplary embodiment, have following effect, that is, when the multi-layer transparent conductive film that has piled up metallic film and had a transparent membrane of high index of refraction was used for EM radiation shield 220, multi-layer transparent conductive film shielded the NI radiation.Correspondingly, by EM radiation shield 220, can realize these two functions easily, and not need to form separately the NI radiation shield corresponding to NI radiation shield function and EM radiation shield function.And, in this case, can form separately as the NI radiation shield described in hereinafter.

When the conduction reticular membrane was used for EM radiation shield 220 in this exemplary embodiment, the colorant that includes the absorption of N I radiation of absorption of N I radiation scope wavelength was used to shield the NI radiation of being sent by panel assembly at interior fluoropolymer resin.For example, the colorant of absorption of N I radiation can adopt the organic dyestuff of different materials, for example cyanine, anthraquinone, naphthoquinones, phthalein green grass or young crops, naphthalene cyanines (naphthalocyanine), Dimethyl Ammonium (dimonium), two mercaptan nickel (nickeldithiol) etc.Because the PDP device is emitted in the strong NI radiation in the wide wavelength coverage, so can use the NI radiation shield of absorption of N I radiation in wide wavelength coverage.

When the EM radiation shield 220 according to of the present invention exemplary embodiment adopts nesa coating, adopt the situation of conduction reticular membrane to compare with EM radiation shield 220, EM radiation shield function relatively a little less than, but, when light shield pattern 236 compensates or when strengthening EM radiation shield function, only just be enough to realize EM radiation shield function by nesa coating by metal powder is added into.

Anti-reflecting layer 250 according to this exemplary embodiment is formed on another surface of transparency carrier 210, but the present invention is not limited to above-mentioned structure order.As shown in Figure 2, when PDP filtrator 200 was installed in the PDP device, anti-reflecting layer 250 was formed in the surface corresponding to the beholder position, that is, in the panel assembly opposite surfaces, be effective.By reducing outside reflection of light, anti-reflecting layer 250 can strengthen visibility.

And, by forming anti-reflecting layer 250, can further reduce the external light reflection of PDP filtrator 200 on the surface of first type surface on the panel assembly direction from PDP filtrator 200.And, by forming anti-reflecting layer 250 and reducing the external light reflection of PDP filtrator 200, can increase with respect to visible light transmittance and contrast from panel assembly.

PDP filtrator 200 according to this exemplary embodiment can further comprise color correction layer 240.By reducing or control the amount of red (R), green (G), blue (B), color correction layer 240 is revised or the correction of color balance.

Because the light that sends by plasma self and by exterior light send and from panel assembly again the light of secondary reflection be orange, so mainly send orange-colored light from panel assembly.By adopting external light screening layer 230 and preventing exterior light 320 entering surface board components, can reduce the amount of orange incident light 310 basically according to the PDP filtrator 200 of this exemplary embodiment.Correspondingly, the PDP filtrator 200 of this exemplary embodiment can improve excitation, and does not need to reduce in addition to be used to proofread and correct the amount of orange colorant or to use colorant in addition.For example, when in bright chamber (150lux (lx)), making up red, green and blue color (RGB) with medium image gradation (50IRE), adopt color coordinates as measurement means with respect to every kind of color, and obtain the area ratio of measured color coordinates, and compare with the relevant area of the color coordinates of characteristic color, then obviously can obtain high excitation.When in panel assembly, directly measuring, obtain about 66% area ratio, relatively true with this, when measuring, can obtain about 86% area ratio, thereby can obtain higher excitation by PDP filtrator 200.

For the color reproduction scope that increases demonstration and strengthen screen resolution, color correction layer 240 adopts different colorants.Colorant can adopt dyestuff or pigment.The type of colorant is: have the toner of neon light shield function, and for example anthraquinone, cyanine, azo, stilbene, phthalein green grass or young crops, methane or the like, but the present invention is not limited to this.Because the kind of colorant and concentration are not limited to particular value by showing that required absorbing wavelength, absorption coefficient and transmission property determined so can use different numerical value.

When each layer of PDP filtrator 200 or each membrane stack together the time, can be used transparent adhesive or bonding agent.Concrete material can adopt acrylic adhesives, silicon adhesive, polyurethane binder, polyvinyl butyral (PMB) bonding agent, ethylene-vinyl acetate (ethylene-vinyl acetate, EVA) bonding agent, polyvinylether (polyvinyl ether), saturated amorphous polyester, melamine resin, etc.

By the periodic patterns of the light shield pattern 236 of external light screening layer 230 be presented at periodic patterns in the panel assembly (pattern of luminescence unit structure, electrode, etc.) and can produce Moire fringe.Moire fringe is represented the interference fringe of formation when at least two kinds of periodic patterns are overlapping.As shown in Figure 3, as selection scheme, the longitudinal edge of the extended line of light shield pattern and basal substrate 234, be set up according to the mode that between described extended line and described longitudinal edge, forms predetermined angular (a), with prevent discharge space and and the external light screening layer between because interference forms Moire fringe.At this, in order effectively to prevent Moire fringe, the drift angle that the angle of cut limited (a) that is formed by the longitudinal edge of the extended line of light shield pattern 236 and basal substrate 234 can change in its effective value according to the panel assembly structure.For the moore phenomenon of the panel assembly of the present invention that prevents from hereinafter will describe, drift angle (a) is necessary for 5 degree or littler, and preferably in the scope between 1.5 to 4 degree.Drift angle (a) can be understood that the angle of cut of light shield pattern 236 with respect to the longitudinal edge (with respect to beholder's horizontal direction) of panel assembly.

As mentioned above, when light shield pattern 236 has the predetermined angular of 5 degree with respect to the longitudinal edge of panel assembly, light shield pattern 236 can be subjected to the influence of the gradient of the different pattern of panel assembly and light shield pattern hardly, thereby has effectively prevented the moore phenomenon of PDP device.

Hereinafter, will describe in detail according to panel assembly of the present invention.Particularly, hereinafter described panel assembly is characterised in that, has effectively prevented by the moore phenomenon due to the drift angle.

Panel assembly according to this exemplary embodiment comprises a plurality of luminescence units.Luminescence unit is the zone that forms between the front-back baseboard of panel assembly.Luminescence unit divides for by the being seen light-emitting zone of beholder with around the non-luminous region of light-emitting zone.Light-emitting zone is different from the notion of discharge space,, is different from the unit that discharge gas is discharged that is.Particularly, discharge space is according to grid shape and different, and luminescence unit is meant the pixel corresponding to an optical unit.Different therewith is, the partition wall type of panel assembly is depended in the change of discharge space, for example strip partition wall, lattice-shaped partition wall, etc.

Fig. 4 is the schematic plan view of diagram according to a plurality of luminescence units of the panel assembly of exemplary embodiment of the present invention.In this case, luminescence unit sees to have flat site from beholder's angle.

With reference to Fig. 4, luminescence unit 40 is divided into light-emitting zone 42 and non-luminous region 44.Luminescence unit 40 forms continuously in adjacent mode.Luminescence unit shown in Figure 4 may not can all forms at grade.That is to say that Fig. 4 illustrates from the being seen luminescence unit 40 of beholder's angle.

Light-emitting zone 42 can correspond respectively to any one in red light-emitting zone, green luminescence zone and the blue light emitting zone, and as colored pixels, it can realize different colours by allowing to form one group by the light-emitting zone that three kinds of different colours are represented.

Have at panel assembly under the situation of lattice-shaped partition wall, non-luminous region 44 can be the zone corresponding to the part of partition wall.And, having at panel assembly under the situation of strip pattern partition wall, non-luminous region 44 can be the zone corresponding to the part of this partition wall, perhaps is the zone corresponding to a part that is formed on the secret note on the prebasal plate.Particularly, the part of non-luminous region 44 correspondences presents black from the beholder.For example, have at panel assembly under the situation of strip pattern partition wall as shown in Figure 4, the non-luminous region 44a of Xing Chenging can be partition wall along its length, and the non-luminous region 44b that along continuous straight runs forms can be the light shield pattern (secret note) that forms on prebasal plate.

In situation according to the panel assembly of this exemplary embodiment, the area of light-emitting zone 42 account for the luminescence unit total area 60% or more.Light-emitting zone 42 with respect to the area of luminescence unit 40 total areas than comprising that efficient lighting area is 100% situation in theory.Particularly, along with the relative area ratio increases, the part that presents black color reduces, otherwise along with the relative area ratio reduces, then efficient lighting area reduces.

With relative area mentioned above than be 60% or bigger panel assembly and drift angle (a) be the PDP device that 5 degree or littler external light screening layer are included, show good light-room contrast, and prevent moore phenomenon.Particularly, when the relative area ratio is 60% or more hour, even externally light shielding layer has under the situation of 5 degree or littler drift angle (a), also moore phenomenon may take place.And, when drift angle (a) is 5 degree or when bigger, even the relative area ratio is 60% or bigger, also moore phenomenon may take place.

This exemplary embodiment focuses on the PDP device, and but, external light screening layer of the present invention also can be applicable to 60% or the more typical display device that light-emitting zone accounts for the luminescence unit total area.That is to say that those skilled in the art can easily be applied to panel assembly with external light screening layer according to the present invention, on liquid crystal display (LCD) device or analog, moore phenomenon occurs so that prevent.

Fig. 5 is the exploded perspective view of diagram according to the panel assembly of the PDP device of exemplary embodiment of the present invention.

The three-electrode surface discharge PDP that drives for AC according to the panel assembly 500 of the PDP device of exemplary embodiment of the present invention.The panel assembly 500 of PDP device comprises prebasal plate 520 and metacoxal plate 530.

Metacoxal plate 530 comprises: be used for producing address discharge a plurality of addressing electrodes 533, be used for addressing electrode 533 embed metacoxal plates back dielectric layer 535, be used to separate a plurality of partition walls 537 of a plurality of discharge spaces and be coated on the partition wall both sides and be coated in fluorescence coating 539 on the metacoxal plate that does not form each partition wall.According to this exemplary embodiment, partition wall 537 has strip pattern.

Prebasal plate 520 is to separate the mode of preset distance towards metacoxal plate 530 settings with metacoxal plate 530.Prebasal plate 520 comprises: be used for producing a plurality of public electrodes 522 and the scan electrode 523 of keeping discharge, be used for public electrode 522 and scan electrode 523 are embedded the preceding dielectric layer 525 and the supporting layer 529 of prebasal plates.

Each public electrode 522 comprises transparent common electrode 522a and is arranged on the public electrode 522b that confluxes of transparent common electrode 522a one side.And each scan electrode 523 comprises transparent scan electrode 523a and is arranged on the scan electrode 523b that confluxes of transparent scan electrode 523a one side.

According to this exemplary embodiment, partition wall 537 is watched along the length direction of panel assembly 500 from beholder's angle and being extended, and public electrode 522 and scan electrode 523 are patterned, with along the direction extension that intersects with partition wall 537 quadratures.Therefore, external light screening layer as indicated above is arranged on the existing surface of panel assembly 500, makes that the light shield pattern of external light screening layer is 5 degree or littler with respect to the drift angle of the bearing of trend (being the horizontal direction of panel assembly 500) of public electrode and scan electrode.

Fig. 6 is the schematic plan view of a plurality of luminescence units of diagram panel assembly shown in Figure 5.Particularly, Fig. 6 is the planimetric map from the being seen panel assembly of beholder's angle.

As shown in Figure 6, panel assembly comprises a plurality of luminescence units 60, and they are divided into light-emitting zone 62 and non-luminous region 64.And as shown in Figure 6, the public electrode 522b that confluxes of prebasal plate 520 presents black with the scan electrode 523b that confluxes.Because

bus electrode

522b and 523b are made by opaque metal that can not printing opacity, so watch them to present black from the beholder.

As indicated above, accounted for 60% or more according to the area of the light-emitting zone 62 of the panel assembly 500 of the PDP device of this exemplary embodiment with respect to the total area of luminescence unit 60, make the external light screening layer with predetermined drift angle (a) (5 degree or littler) mentioned above be effectively applied, thereby prevented the moore phenomenon generation effectively in panel assembly.And, even externally exist different in effective aspect of light shielding layer, but the drift angle is 5 degree or littler external light screening layer also be applied to light-emitting zone 62 have 60% or other display device of littler relative area ratio, thereby prevent that moore phenomenon from producing with predetermined or more level.

But, have only when as indicated above, that is, have at least 60% or during the display device of bigger relative area ratio, just more effectively prevent moore phenomenon when what the external light screening layer was applied to light-emitting zone 62.

Further,

bus electrode

522b and 523b are set to be adjacent to the surperficial 62a that is parallel to

bus electrode

522b and 523b of adjacent light-emitting zone.Particularly, spacing distance H1 between the described surface of

bus electrode

522b and 523b and adjacent light-emitting zone (non-luminous region 62a), be conditioned the quadrature of light-emitting zone for this reason intersect at

bus electrode

522b and 523b bearing of trend surperficial 62b length L 1 30% or littler.

More specifically, under panel assembly satisfies situation about the following formula 2 of bus electrode position, be applied to panel assembly according to the external light screening layer of this exemplary embodiment, thereby prevent that effectively moore phenomenon from taking place.

H1≤0.3 * L1 [formula 2]

That is to say that H1 is at bus electrode and is parallel to distance between the non-luminous region (surface of light-emitting zone) of bus electrode, intersect at the length on the surface of non-luminous region and L1 is the quadrature of light-emitting zone.

Satisfy the panel assembly of the PDP device of above-mentioned formula 2 according to

bus electrode

522b and 523b, the external light screening layer that comprises the light shield pattern with predetermined angular as indicated above is applied to panel assembly, thereby prevents that moore phenomenon from taking place.

Fig. 7 is the exploded perspective view of diagram according to the panel assembly of the PDP device of another exemplary embodiment of the present invention.Fig. 8 is the cut-open view along the line I-I ' intercepting of Fig. 7.

As shown in Figure 7, in the PDP device, be provided with the another side board component 700 that on the partition wall side surface, produces surface-discharge.The have predetermined drift angle light shield pattern of (5 degree or littler) of having comprised according to the present invention is applied to the panel assembly 700 according to the PDP device of this exemplary embodiment, thereby prevents that more effectively moore phenomenon from producing at interior external light screening layer.

With reference to Fig. 7 and Fig. 8, comprise prebasal plate 720 and metacoxal plate 730 according to the panel assembly 700 of the PDP device of this exemplary embodiment.Prebasal plate 720 separates in mode parallel to each other with metacoxal plate 730.Prebasal plate 720 comprises and is arranged on a plurality of upper partition walls 727 that discharge space was partly gone up and be suitable for separating to absence of discharge.Each upper partition wall 727 comprises to be formed at last sparking electrode 722 and the following sparking electrode 723 in the upper partition wall 727 around the mode of light-emitting zone.In this case, last sparking electrode 722 is meant the electrode that is placed in down sparking electrode 723 tops.According to this exemplary embodiment, because partition wall 727 forms grid shape, so discharge space is understood that the notion corresponding to light-emitting zone.

The a plurality of lower partition walls 737 that form between upper partition wall 727 and metacoxal plate 730 are used to prevent to discharge intergranular cross-talk.A plurality of fluorescence coatings 739 are set in the unit that is limited by lower partition wall 737.Discharge gas is filled in the corresponding discharge space.

At this, one of last sparking electrode 722 and following sparking electrode 723 are as addressing electrode, and another sparking electrode is as the sparking electrode that produces discharge.Different therewith is that as shown in Figures 2 and 3, last sparking electrode 722 and following sparking electrode 723 extend along a direction respectively in mode parallel to each other.And, a plurality of addressing electrodes 733 further are provided, it extends in the mode that quadrature intersects at sparking electrode 722 and following sparking electrode 723.In this case, preferably, the side surface of upper partition wall 727 is capped with MgO film 729, and addressing electrode 733 is set between metacoxal plate 130 and the fluorescence coating 739, and dielectric layer 735 is set between addressing electrode 733 and the fluorescence coating 739.

Hereinafter will describe the pairing specific example of structure of the panel assembly of PDP device as indicated above in detail.The panel assembly of PDP device comprises metacoxal plate 730, a plurality of addressing electrodes 733, be used to cover the dielectric layer 735 of addressing electrode, be formed at a plurality of lower partition walls 737 that are used to separate discharge space C on the dielectric layer, around dielectric layer top and extend and intersect at a plurality of sparking electrodes 723 down of addressing electrode, be used for around a plurality of upper partition walls 727 of last sparking electrode and following sparking electrode, be set on the side surface of lower partition wall and do not form a plurality of fluorescence coatings 739 on the dielectric layer of each lower partition wall, fill the discharge gas of corresponding luminescence unit, thereby be arranged on upper partition wall on the prebasal plate 720 parallel with metacoxal plate.

Metacoxal plate 730 supports addressing electrodes 733, dielectric layer 735 etc., and generally include contain glass material as its principal ingredient.

Addressing electrode 733 produces address discharge, so that keeping discharge between sparking electrode 723 and the last sparking electrode 722 down, more specifically, is used for reducing voltage when discharge is kept in startup.

When addressing electrode 733 was formed on the metacoxal plate 730, last sparking electrode can be corresponding to scan electrode, and following sparking electrode can be corresponding to public electrode.But, preferably, last sparking electrode 722 is a public electrode, and following sparking electrode 723 is a scan electrode.This is because for the ease of carry out address discharge between scan electrode and addressing electrode 733, wish scan electrode is arranged on the public electrode below.Correspondingly, hereinafter, last sparking electrode 722 and following sparking electrode 723 are called public electrode and scan electrode, so that explanation.

According to this exemplary embodiment, scan electrode 723 and public electrode 722 are provided with in the mode around discharge space C top.The top of discharge space is meant the part of lower partition wall 737 tops.

Scan electrode 723 and public electrode 722 are set to mutual intersection.But, when addressing electrode 733 was formed on the metacoxal plate, scan electrode 723 and public electrode 722 preferably were arranged in parallel.

And as shown in Figure 2, scan electrode 723 and public electrode 722 form a kind of electrode respectively, and but, different therewith is also can comprise at least two kinds of outer electrodes respectively.

Address discharge is meant the discharge that takes place between scan electrode 723 and addressing electrode 733.When finishing address discharge, positive ion accumulates on the scan electrode 723, and electronics accumulates on the public electrode 722, thereby helps keeping discharge between scan electrode and public electrode.

Dielectric layer 735 comprises dielectric material, for example PbO, B ₂O ₃, SiO ₂Deng, it is impaired because positive ion or electronics and addressing electrode 733 collide that it can prevent addressing electrode 733, and can cause electric charge at interdischarge interval.

Lower partition wall 737 prevents to produce erroneous discharge between discharge space C, and discharge space C is corresponding to a sub-pixel from the sub-pixel of the sub-pixel of the sub-pixel that glows of component units pixel, green light and blue light-emitting.In Fig. 2, lower partition wall 737 is illustrated as according to the grid mode separates discharge space C, but it is not limited to this, and lower partition wall 737 can be separated discharge space C according to for example honeycomb mode.And the discharge space C that is limited by lower partition wall 737 has the xsect of rectangle, and but, it is not limited to this, and the xsect of this discharge space C can be such as triangle or pentagonal polygon, or circular, oval, etc.

Scan electrode 723 and public electrode 722 expressions are used to carry out the electrode of keeping discharge.What be used to realize the PDP image keeps discharge generation between scan electrode 723 and public electrode 722.At this, scan electrode 723 and public electrode 722 are made by the conductive metallic material such as copper, aluminium.Scan electrode 723 extensions intersect at addressing electrode, are meant, each row through addressing electrode of discharge space C intersect at the respectively row through scan electrode of discharge space C.And, be parallel to the public electrode 722 that scan electrode 723 extends, be meant that public electrode is set to separate preset distance with scan electrode.

The discharge space C of upper partition wall 727 separating adjacents, and form by dielectric material, thus prevent that in keeping discharge process scan electrode 723 and public electrode 722 from directly connecting.And when charged particle direct collision electrode, upper partition wall 727 prevents that electrode 722 and 723 is impaired, and guides charged particle into described wall.

Based on the panel assembly according to the PDP device of of the present invention exemplary embodiment, scan electrode and public electrode all are embedded in the upper partition wall.Consequently, the panel assembly of the PDP device in Fig. 5, efficient lighting area enlarges markedly.And, be applicable to external light screening layer according to the panel assembly of the PDP device of this exemplary embodiment, thereby effectively prevent moore phenomenon according to this exemplary embodiment.

Hereinafter, for the generation of recently checking moore phenomenon according to light-emitting zone area and luminescence unit area (efficient lighting area), comprise the result that the PDP device of two kinds of panel type is watched with describing by use, every kind of described panel type all has different efficient lighting area mutually.

Test 1

In having two corresponding 42 inches PDP devices of different panels type (A pattern formula and Type B pattern), checked the generation of moore phenomenon, as shown in following table 1.

[table 1]

	A pattern formula	The Type B pattern
			Cellular construction (length x width)	304×693	304×693
Cellar area	210672	210672
			The efficient lighting area of unit	125222	158242
Ratio	0.59439318	0.751129718

As table 1 as seen, the panel of A pattern formula has about 59% efficient lighting area ratio, and the panel of Type B pattern has about 75% efficient lighting area ratio.

In the above-mentioned PDP device that is applicable to drift angle (5 degree or littler) according to external light screening layer of the present invention, watch the generation of moore phenomenon, and find that the panel of A pattern formula demonstrates moore phenomenon under 5 degree or littler drift angle, even have small difference according to the drift angle.And the panel of Type B pattern does not demonstrate moore phenomenon.

Further, the simulation result of carrying out for 42 inches PDP devices is expected to be, when the ratio of effective light-emitting area at least 60% or when bigger, will not show moore phenomenon.

Test 2

In having two corresponding 50 inches PDP devices of different panels type (A pattern formula and Type B pattern), checked the generation of moore phenomenon, as shown in following table 2.

[table 2]

	A pattern formula	The Type B pattern
			Cellular construction (length x width)	270×810	270×810
Cellar area	218700	218700
			The efficient lighting area of unit	129800	163900
Ratio	0.59350709	0.749428441

As table 2 as seen, adopt with 40 inches PDP devices in identical mode, the panel of A pattern formula has about 59% efficient lighting area ratio, the panel of Type B pattern has about 75% efficient lighting area ratio.

Further, the simulation result of carrying out for 50 inches PDP devices is expected to be, when the ratio of effective light-emitting area at least 60% or when bigger, will not show moore phenomenon.

Hereinafter, for the PDP device of panel assembly with Fig. 5, will be for by describing according to the result who checks the generation of moore phenomenon to obtain such as the position of bus electrode, variable the secret note thickness.

Test 3

When the angle of the external light screening layer that comprises the light shield pattern that forms the wedge shape secret note changes, the generation of check moore phenomenon, described wedge shape secret note is separated from each other preset distance.

Spacing between the secret note is 73.4 μ m, and the bottom surface area of wedge shape secret note is 30% with respect to the ratio of the total area of external light screening layer.Luminescence unit in the panel assembly of PDP device adopts and is of a size of 912 * 693 μ m.And, be 109 μ m in the auxiliary electrode and the spacing between the non-luminous region of panel assembly, the thickness of auxiliary electrode is 48 μ m.

As test in 3 as seen, when secret note is 5 degree or more hour with respect to the drift angle of the horizontal direction (horizontal direction) of panel assembly, moore phenomenon takes place hardly, more specifically, when in the scope of drift angle between 1.5 to 3.5 degree, moore phenomenon does not take place basically.

Test 4

Spacing between the secret note is 107.5 μ m, and the bottom surface area of wedge shape secret note is 30% with respect to the ratio of the total area of external light screening layer.The luminescence unit that is adopted in the panel assembly of PDP device is of a size of 912 * 693 μ m.And, be 109 μ m in the auxiliary electrode and the spacing between the non-luminous region of panel assembly, the thickness of auxiliary electrode is 48 μ m.

As test in 4 as seen, when secret note is 5 degree or more hour with respect to the drift angle of the horizontal direction (horizontal direction) of panel assembly, moore phenomenon takes place hardly, more specifically, when in the scope of drift angle between 2.5 to 3.5 degree, moore phenomenon does not take place basically.

Test 5

Spacing between the secret note is 73.4 μ m, and the bottom surface area of wedge shape secret note is 30% with respect to the ratio of the total area of external light screening layer.The luminescence unit that is adopted in the panel assembly of PDP device is of a size of 810 * 810 μ m.And, be 159.5 μ m in the auxiliary electrode and the spacing between the non-luminous region of panel assembly, the thickness of auxiliary electrode is 48 μ m.

As test in 5 as seen, when secret note is 5 degree or more hour with respect to the drift angle of the horizontal direction (horizontal direction) of panel assembly, moore phenomenon takes place hardly, more specifically, when in the scope of drift angle between 2.0 to 4.0 degree, moore phenomenon does not take place basically.

Can find from the result of test 3-5, moore phenomenon depend on the spacing between the secret note and the size of luminescence unit, but, when the drift angle is about 5.0 degree or more hour, regardless of the size of spacing between the secret note and luminescence unit, all effectively prevented the generation of moore phenomenon.

According to aforesaid exemplary embodiment of the present invention, display device such as the PDP device, can tilt with predetermined drift angle with respect to the longitudinal edge of panel assembly by making the external light screening layer that comprises the light shield pattern, prevent that moore phenomenon from taking place and the raising contrast, thereby improve the picture quality of display device.

And, according to the display filter that comprises the external light screening layer of aforesaid exemplary embodiment of the present, can be used to have the panel assembly of the efficient lighting area of specific ratios, thereby prevent that moore phenomenon is at the character of panel and take place.

According to above-mentioned exemplary embodiment of the present invention, the external light screening layer can obtain effectively suitable, thereby prevents PDP panel generation moore phenomenon, particularly, in the PDP panel, carries out surface-discharge on the side surface of discharge space.

Though has shown and described each exemplary embodiment of the present invention, but the present invention is not limited to described exemplary embodiment.On the contrary, those skilled in the art is cognizable to arrive, and under the prerequisite that does not depart from principle of the present invention and spirit, can change these exemplary embodiments, and scope of the present invention is limited by claims and equivalent way thereof.

Claims

1. display device comprises:

Panel assembly, it comprises a plurality of luminescence units, described luminescence unit is divided into by the being seen light-emitting zone of beholder with around the non-luminous region of described light-emitting zone; With

Display filter, it is set on the described panel assembly and comprises the external light screening layer, and described external light screening layer has the light shield pattern that is formed on this external light screening layer one side,

Wherein, the area of described light-emitting zone account for described a plurality of luminescence units the total area 60% or more, and

The drift angle that is formed by the longitudinal edge of the extension direction of described light shield pattern and described panel assembly is 5 degree or littler.

2. display device according to claim 1, wherein, described drift angle is spent in the scope between 4 degree 1.5.

3. display device according to claim 1, wherein, described panel assembly comprises prebasal plate; Metacoxal plate towards described prebasal plate; With a plurality of partition walls, it separates a plurality of discharge spaces that form between described prebasal plate and described metacoxal plate.

4. display device according to claim 3, wherein, described panel assembly comprises: a plurality of electrodes are used for causing surface-discharge on the side surface of described partition wall.

5. display device according to claim 4, wherein, described panel assembly comprises:

Transparent front substrate;

The metacoxal plate that be arranged in parallel with described prebasal plate;

A plurality of upper partition walls, it is arranged between described prebasal plate and the described metacoxal plate and is suitable for separating described discharge space;

First sparking electrode and second sparking electrode, they are arranged in the described upper partition wall to center on described discharge space;

A plurality of lower partition walls, it is arranged between described upper partition wall and the described metacoxal plate;

Fluorescence coating, it is arranged in the described discharge space; With

Inject the discharge gas of described discharge space.

6. display device according to claim 5, wherein, described upper partition wall and described lower partition wall form grid shape respectively.

7. display device according to claim 3, wherein, any in described prebasal plate and the described metacoxal plate forms the secret note shape.

8. display device according to claim 7, wherein, described non-luminous region is corresponding to described partition wall or described secret note shape.

9. display device according to claim 3 wherein, forms transparent electrode pattern to be used for discharge on described prebasal plate.

10. display device according to claim 9, wherein, described transparent electrode pattern is made to prevent the signal delay of described transparent electrode pattern by opaque metal, and further comprise the bus electrode pattern, it passes described light-emitting zone, thereby when surperficial parallel with described light-emitting zone when surface level is watched.

11. display device according to claim 10, wherein, described bus electrode pattern separates preset distance H1 with the surface of described light-emitting zone, and described surface is parallel to described bus electrode pattern when surface level is watched, and described H1 satisfies following formula:

H1≤0.3×L1

Wherein, L1 is the length that the quadrature of described light-emitting zone intersects at the surface of described non-luminous region.

12. display device according to claim 1, wherein, described external light screening layer comprises:

The basal substrate that comprises transparent resin; With

On the surface of described basal substrate, be separated from each other the light shield pattern of preset space length.

13. display device according to claim 12, wherein, described light shield pattern is corresponding in the black matrix form of wedge shape secret note form, wedge shape, the black waveshape of wedge shape, planar-shaped secret note form, the black matrix form of planar-shaped and the black waveshape of planar-shaped any.

14. display device according to claim 1, wherein, described display filter utilizes bonding agent to bond to a side of described panel assembly.

15. a display device comprises:

The external light screening layer, it is attached on the side position by the being seen described panel assembly of beholder, and has the light shield pattern that is formed on described external light screening layer one side,

Wherein, the area of described light-emitting zone account for described a plurality of luminescence units the total area 60% or more.

16. display device according to claim 15, wherein, the drift angle that is formed by the longitudinal edge of the extension direction of described light shield pattern and described panel assembly is 5 degree or littler.