CN101379895A - Method for manufacturing optical filter for display, optical filter for display, and display and plasma display panel provided with such optical filter - Google Patents

Abstract

A method for manufacturing an optical filter, which is for a display and has a conductive layer protruded at the periphery as an electrode section, and an optical filter obtained by such method. The method includes a step wherein a metal conductive layer (13) is formed on the entire surface of a rectangular transparent film (12), a hard coat layer (16) is formed over the entire surface of the metal conductive layer (13), then, laser is radiated on the end portion or on the vicinity along the end portion on the all four sides of the hard coat layer (16) to remove the hard coat layer (16) of the radiated portion, and the frame-shaped area of the metal conductive layer (13) is exposed at the periphery of the hard coat layer.

Description

The manufacture method of display optical filter, display optical filter, the display that has this filter and plasma display device

Technical field

The present invention relates to a kind ofly have the optical filter of various functions such as antireflection, blocking near infrared ray, shielding electromagnetic wave and possess the display of this optical filter, particularly PDP for plasma display device (PDP), cathode ray tube (CRT) display, LCD, organic EL (electroluminescence) display, the various displays such as field emission type display (FED) that comprise surface-conduction-electron emission display (SED).

Background technology

In flat panel displays such as LCD, plasma display (PDP), EL display and CRT monitor, from the light of outside in surface reflection, and inner visual information is difficult to be differentiated, these problems are known in the past, have taked to be provided with the various countermeasures such as optical thin film that comprise antireflection film etc.

In recent years, the big picture of display shows becomes main flow, and as the big picture display device in secondary generation, PDP becomes generally.But, in this PDP, carry out the high-frequency impulse discharge for display image at illuminating part, therefore have unwanted irradiation of electromagnetic waves or cause the infrared radiation of misoperations such as infra-red remote control, for this reason, for PDP, the various schemes of the PDP of conductivity have been proposed to have with antireflection film (electromagnetic wave shielding performance light inlet window material).Conductive layer as this electromagnetic wave shielding performance light inlet window material, for example known has, (1) is provided with the transparent membrane of the nesa coating of containing metal silver, (2) be provided with the transparent membrane of metal wire or conducting fibre being done the conductive grid that reticulates, (3) layer etching and processing such as the Copper Foil on the transparent membrane are reticulated and be provided with the conductive layer of peristome, (4) print webbed conductive layer etc. with conductive ink on transparent membrane.

And then, in the past with in the giant display headed by the PDP, be fitted with various films such as antireflection film or near infrared ray blocking film etc.For example, in the patent documentation 1 (Japanese kokai publication hei 11-74683 communique), put down in writing between two transparency carriers, inserted conductive mesh, be bonded into one and the electromagnetic wave shielding performance light inlet window material that forms with transparent adhesive resin.

In the above-mentioned electromagnetic wave shielding performance light inlet window material, for the electromagnetic wave shielding performance that makes above-mentioned conductive layer is good, and need be with conductive layer (electromagnetic wave shielding performance material), for example conductive mesh and PDP body ground connection (earth).For this reason, need make the electromagnetic wave shielding performance material between two transparency carriers, be exposed to the outside, around the inboard of going into above-mentioned light inlet window material laminated body and ground connection or between two plate bases, sandwich the conductive paste adhesive tape in the mode that contacts with this electromagnetic shielding material.But, have following problems in such method, that is, aforesaid operations is numerous and diverse in the lamination procedure.

In addition, in the patent documentation 2 (TOHKEMY 2001-142406 communique), put down in writing a kind of electromagnetic shielding light-transmitting stack membrane, this stack membrane possesses by 1 transparency carrier, electromagnetic shielding material, the antireflection film on top layer and the laminated body that near infrared ray blocking film lamination becomes one, adhere to the conductive paste adhesive tape across the edge part of the edge surface of this transparency carrier and surfaces externally and internally, the edge part of this conductive paste adhesive tape and this electromagnetic shielding material adheres to by conductive adhesive.

Patent documentation 1: Japanese kokai publication hei 11-74683 communique

Patent documentation 2: TOHKEMY 2001-142406 communique

Summary of the invention

The problem that invention will solve

For example, when using the plastic film of strip to make display optical filter such as above-mentioned PDP, at first, make near-infrared blocking film and antireflection film, use conductive mesh and lamination by they are inserted electromagnetic wave shielding, obtain the optical filter of strip, then, adapt with the shape of whole display parts of each display, severing becomes rectangle.For this reason, the optical filter of such strip, severing on Width usually, the cutting surface of its Width is that the end face of all layers exposes in the end face (side), but only is minimum area certainly.Conductive mesh is also just observed the netted section of a little.

Such display optical filter is directly used, and for the electromagnetic wave shielding performance that makes conductive layer well uses conductive layer (for example conductive mesh) ground connection (earth) of exposing, this is difficult.

On the one hand,, there is following problems in the optical filter as record in the patent documentation 2 even use 1 transparency carrier: need engage each layer that constitutes filter in the mode of exposing conductive mesh from end face, so trivial operations.

Therefore, the object of the present invention is to provide a kind of can the manufacturing easily, and have good electromagnetic wave shielding performance, in addition, be easy to the manufacture method of the display optical filter of the grounding electrode that is assemblied in display and has easy ground connection.

In addition, the object of the present invention is to provide a kind of can the manufacturing easily, and in light weight and thin, have good electromagnetic wave shielding performance, in addition, be easy to the manufacture method of the display optical filter of the grounding electrode that is assemblied in display and has easy ground connection.

And then, the object of the present invention is to provide a kind of can the manufacturing easily, and have good electromagnetic wave shielding performance, in addition, be easy to the display optical filter of the grounding electrode that is assemblied in display and has easy ground connection.

In addition, the object of the present invention is to provide a kind of can the manufacturing easily, and in light weight and thin, have good electromagnetic wave shielding performance, in addition, be easy to the display optical filter of the grounding electrode that is assemblied in display and has easy ground connection.

And then, the object of the present invention is to provide a kind of can the manufacturing easily, and have good electromagnetic wave shielding performance, in addition, be easy to the optical filter that PDP uses that is applicable to of the grounding electrode that is assemblied in display and has easy ground connection.

In addition, the object of the present invention is to provide optical filter to fit in the lip-deep display that image shows glass plate with above-mentioned excellent specific property.

And then also have, the object of the present invention is to provide optical filter to fit in the lip-deep PDP that image shows glass plate with above-mentioned excellent specific property.

The method that is used to deal with problems

Therefore, the invention reside in:

A kind of display optical filter is characterized in that, the side surface that described display optical filter is included in a slice transparent membrane is provided with the structure of metal conducting layer,

Surface at the metal conducting layer of transparent membrane is provided with first functional layer, and exposes metal conducting layer at the circumference of transparent membrane or near at least a portion zone the circumference.

The preferred version of display optical filter of the present invention is as described below.

(1) transparent membrane the metal conducting layer side is not set, be provided with second functional layer.

(2) transparent membrane is a rectangle, and metal conducting layer is arranged on all surfaces of transparent membrane, is provided with first functional layer on the surface except the edge part of the both sides at least of metal conducting layer, and banded metal conducting layer exposes in its two edges portion.

(3) transparent membrane is a rectangle, metal conducting layer is arranged on all surfaces of transparent membrane, be provided with the first banded functional layer on the edge part surface of the both sides at least of metal conducting layer, expose in abutting connection with ground the inboard that does not have first functional layer of the metal conducting layer of band shape of first functional layer and this band shape, and be provided with first functional layer at the middle body that metal conducting layer surrounded of the band shape of exposing.Can easily obtain ground connection.

(4) metal conducting layer that exposes is continuous belt-like zone or the belt-like zone that comprises midway the interruption of the island conductive layer that is interdicted by functional layer.

(5) Dai Zhuan metal conducting layer forms with the frame shape at the edge part on 4 limits of first functional layer.

(6) metal conducting layer is the net metal conductive layer.

(7) first functional layers are hard conating.

(8) first functional layers comprise hard conating and the low-index layer lower than hard conating refractive index, and hard conating and metal conducting layer join.Obtain good antireflection.

(9) first functional layers comprise hard conating, than high high refractive index layer of hard conating refractive index and the low-index layer lower than hard conating refractive index, hard conating and metal conducting layer join.Further obtain good antireflection.

(10) first functional layers are antiglare layer, and antiglare layer is so-called anti-dazzle photosphere (anti-glare layer), have excellent anti-reflection effect usually, and the situation of anti-reflection layer that above-mentioned (7)～(9) can be set is also a lot.Thus, improve the degree of freedom of the refractive index of other layer, the range of choice of layer material is very wide, and the effect that reduces cost is also arranged.

(11) first functional layers comprise antiglare layer and the low-index layer lower than antiglare layer refractive index, and antiglare layer and metal conducting layer join.Thus, only just can obtain further excellent anti-reflection effect by antiglare layer.

(12) second functional layers are the one decks at least that are selected near infrared ray absorption layer, neon light blocking layer and the translucent adhesive layer.Second functional layer preferably includes the translucent adhesive layer with near-infrared absorbing function and neon light blocking function, perhaps comprise near infrared ray absorption layer and translucent adhesive layer (being set in sequence on the transparent membrane) with this with neon light blocking function, perhaps comprise near infrared ray absorption layer, neon light blocking layer and translucent adhesive layer (being set in sequence on the transparent membrane), perhaps comprise near infrared ray absorption layer and translucent adhesive layer (being set in sequence on the transparent membrane) with this with neon light blocking function with this.

(13) Dai Zhuan metal conducting layer is the belt-like zone that comprises midway the interruption of the island conductive layer that is interdicted by functional layer, and the shape of island conductive layer can be the same or different.

(14) landfill has hard conating in the grid gap of netted conductive layer.Obtain the excellent transparency.

(15) transparent membrane is a plastic film.

(16) on the translucent adhesive layer, be provided with stripping film.On the translucent adhesive layer, be provided with stripping film.Be assembled on the display easily.

(17) be the plasma display device filter.

(18) the display optical filter is to paste the display optical filter of paying on glass substrate.

And then the present invention also is,

A kind of have conductive layer around being projected into as the manufacture method of the display optical filter of electrode part, it comprises following operation: for by a slice transparent membrane, be formed on the metal conducting layer on its all surfaces and be formed on the circumference of this functional layer of the laminated body that first functional layer on the metal conducting layer all surfaces constitutes or near at least a portion area illumination laser the circumference, remove first functional layer of illuminated portion, expose metal conducting layer.

A kind of have conductive layer around being projected into as the manufacture method of the display optical filter of electrode part, it comprises following operation: along by the transparent membrane of a slice rectangle, the circumference or near the irradiating laser it of both sides at least of first functional layer that be formed on the metal conducting layer on its all surfaces and be formed on this rectangle of the laminated body that first functional layer on the metal conducting layer all surfaces of rectangle constitutes, remove first functional layer of illuminated portion, at the edge part of the both sides at least of rectangle function layer or expose the belt-like zone of metal conducting layer near it.

A kind of have conductive layer around being projected into as the manufacture method of the display optical filter of electrode part, it comprises following operation: along by the transparent membrane of a slice rectangle, the edge part or near the irradiating laser it on whole 4 limits of first functional layer that be formed on the metal conducting layer on its all surfaces and be formed on this rectangle of the laminated body that first functional layer on the metal conducting layer all surfaces of rectangle constitutes, remove first functional layer of illuminated portion, in the edge part of rectangle function layer or near the frame shape zone of exposing conductive layer it.

The preferred version of the manufacture method of display optical filter of the present invention is as follows:

(1) the metal conducting layer side that is not provided with at transparent membrane is provided with second functional layer.

(2) continuously or intermittently carries out laser radiation.

And then, in manufacture method of the present invention, also can be suitable for the preferred version of the optical filter of the invention described above.

The present invention also is: the display optical filter that obtains by above-mentioned manufacture method; And the display optical filter that obtains by above-mentioned manufacture method pastes the display optical filter of paying on glass substrate.

And then the present invention also is:

A kind of display is characterized in that, it possesses above-mentioned display optical filter (usually, optical filter pastes and pays the surface that shows glass plate in image); And

A kind of plasma display device is characterized in that, it possesses above-mentioned display optical filter (usually, optical filter pastes and pays the surface that shows glass plate in image).

The display optical filter selects excellent surface and the image surface engagement that shows glass plate by conductive layer one side will be set, and fits in image and shows on the glass plate.

The invention effect

By the manufacture method of display optical filter of the present invention, can extremely easily make optical filter with the electrode part (grounding electrode) that constitutes by the metal conducting layer around being projected into.Promptly, on all surfaces of the metal conducting layer that all surfaces of the transparency carrier of rectangle forms, form functional layers such as hard conating, near the edge part or edge part by the laser radiation functional layer, remove the functional layer of illuminated portion, expose metal conducting layer, can make optical filter thus with the electrode part (grounding electrode) that constitutes by the metal conducting layer around being projected into.Utilize this method, can extremely easily make and have the electrode part (grounding electrode) that constitutes by the conductive layer around being projected into.By such electrode part setting, can easily obtain ground connection.

In addition, display optical filter of the present invention is can obtain the advantage that ground connection is provided with easily by utilizing the optical filter of the electrode part that has the conductive layer with ad hoc structure that above-mentioned manufacture method obtains effectively, having as mentioned above.

Particularly, use 1 transparent membrane to obtain under the situation of above-mentioned optical filter, the thickness of optical filter is minimum, and incident is that quality also diminishes, and when therefore being assemblied in display, and also is extremely beneficial in the operation of assembling back.

Therefore, display optical filter of the present invention can be called for plasma display device (PDP), cathode ray tube (CRT) display, LCD, organic EL (electroluminescence) display, comprise that the various displays such as field emission type display (FED) of surface-conduction-electron emission display (SED) have optical filters various functions, the productivity excellence such as antireflection, blocking near infrared ray, shielding electromagnetic wave.

Description of drawings

Fig. 1 is the figure of an example that is used to illustrate the manufacture method of the display optical filter that has an electrode part of the present invention.

Fig. 2 is the constructed profile of a representational example of the display optical filter that has an electrode part of the present invention.

Fig. 3 is the vertical view that has the display optical filter of electrode part of the present invention shown in Figure 2.

Fig. 4 is the part vertical view of other schemes of the display optical filter that has an electrode part of the present invention shown in Figure 2.

Fig. 5 is an example constructed profile that has the display optical filter preferred version of electrode part of the present invention.

Fig. 6 is the figure of an example of other schemes that is used to illustrate the manufacture method of the display optical filter that has an electrode part of the present invention.

Fig. 7 is an example constructed profile of other schemes of the display optical filter that has an electrode part of the present invention.

Fig. 8 is the vertical view that has the display optical filter of electrode part of the present invention shown in Figure 7.

Fig. 9 is the part vertical view of other schemes of the display optical filter that has an electrode part of the present invention shown in Figure 7.

Figure 10 is the constructed profile of an example of other preferred versions of display optical filter that have an electrode part of the present invention

Figure 11 is the constructed profile that optical filter of the present invention pastes 1 example paying the state on the picture display face of the plasma display device of one of display.

Symbol description

12,22,32,42 transparent membranes

13,23,33,43 metal conducting layers

13 ', 23 ', 33 ', 43 ' conductive layer exposes the zone

16,26,36,46 hard conatings

16 ', 26 ' edge part hard conating

27,47 low-index layers

27 ' edge part low-index layer

14,24,34,44 near infrared ray absorption layer

15,25,35,45 translucent adhesive layers

Embodiment

About manufacture method and the display optical filter that has electrode part of the present invention that has the display optical filter of electrode part (grounding electrode) of the present invention, below be elaborated.

Be used to illustrate the constructed profile of an example of the manufacture method of the display optical filter that has an electrode part of the present invention shown in Fig. 1.Zone Full on the surface of the transparent membrane 12 of rectangle forms netted metal conducting layer 13 (1), then, forms the hard conating 16 (2) that is made of synthetic resin as first functional layer at netted metal conducting layer 13 Zone Fulls.Then, the edge part (end) on 4 limits around hard conating 16 whole is along its edge illumination laser (3).Irradiation can be only in both sides of the edge portion.At this moment, carry out laser radiation in the mode of not shining edge part (end).Hard conating 16 is because be the layer that is made of synthetic resin, and the hard conating 16 in laser radiation zone decomposes or burning and disappearing.Thus, near the hard conating 16 the end, 4 limit is removed, and exposes metal conducting layer, form conductive layer expose zone 13 ', it forms electrode part (4).At this moment, at the edge part of transparent membrane 12, the hard conating of irradiating laser is not residual usually, formation edge part hard conating 16 '.Then, usually the dorsal part (being generally all surfaces) at transparent membrane 12 forms as the near infrared ray absorption layer 14 of second functional layer and translucent adhesive layer 15 thereon, as shown in Figure 2, obtain the optical filter of one of preferred version of the present invention, translucent adhesive layer 15 can not be provided with yet.In addition, also can hard conating be set as mentioned above being provided with near infrared ray absorption layer 14 in advance and being provided with on it on transparent membrane of translucent adhesive layer 15.On the electrode part of the optical filter that obtains (conductive layer expose zone 13 '), connect the various electric conducting materials that are used to obtain ground connection.And above-mentioned hard conating illustrates as a kind of of first functional layer of the present invention.

As first or second functional layer, so long as contain the layer of the synthetic resin that shows any function, any can.In the present invention, common first functional layer is a hard conating; Or comprise hard conating and the low-index layer (at this moment hard conating and metal conducting layer join) lower than hard conating refractive index, perhaps comprise hard conating, than high high refractive index layer of hard conating refractive index and the low-index layer (at this moment hard conating and metal conducting layer join) lower than hard conating refractive index, layer is many more to obtain better antireflection more, and perhaps first functional layer is antiglare layer or comprises antiglare layer and the low-index layer (antiglare layer and metal conducting layer join) lower than antiglare layer refractive index.Antiglare layer can be so-called anti-dazzle photosphere, has good anti-reflection effect usually, and it is also a lot of that the yet passable situation of above-mentioned anti-reflection layer is not set.Thus, the degree of freedom of the refractive index of other layer improves, and the range of choice of layer material broadens, so the effect that reduces cost is also arranged.Comprise and only just can obtain better anti-reflection effect under the situation of antiglare layer and low-index layer by antiglare layer.In addition, second functional layer generally is near infrared ray absorption layer, neon light blocking layer (neon-cut layer) or translucent adhesive layer, or the combination more than 2 layers of these layers.Among the present invention, preferred second functional layer of second functional layer comprises the translucent adhesive layer with near-infrared absorbing function and neon light blocking function, perhaps comprise near infrared ray absorption layer and translucent adhesive layer (being set in sequence on the transparent membrane), perhaps comprise near infrared ray absorption layer, neon light blocking layer and translucent adhesive layer (being set in sequence on the transparent membrane) with this with this with neon light blocking function.

In addition, in Fig. 1 and Fig. 2, to four marginal portions (end) irradiating lasers around hard conating 16 whole, but also can be at the portion of the both sides of the edge at least irradiating laser of the hard conating 16 of rectangle, and both sides of the edge portion at least form conductive layer expose zone 13 '.During irradiating laser, can use around 1 laser radiation all or two edges portion, also can be with several each limit etc. of shining respectively, can carry out by the suitable illuminating method of conversion.

The vertical view of 1 example of preferred optical filter of the present invention shown in Figure 2 is shown among Fig. 3, the conductive layers that around hard conating 16 whole, form the frame shape expose zone 13 ' and the edge part hard conating 16 of the frame shape in its outside '.

Make above-mentioned Fig. 2 and shown in Figure 3 around all, have conductive layer expose zone 13 ' optical filter the time, can aforesaid individual manufacturing, but continuous manufacturing that also can be as described below, promptly after forming hard conating on the transparent membrane 12 of strip with netted metal conducting layer 13, at two edges portion irradiating laser, two edges portion form conductive layer expose zone 13 ', then, severing, edge part irradiating laser on the both sides of severing, two edges portion form conductive layer expose zone 13 ', the conductive layer that forms the frame shape expose zone 13 ', can obtain thus around all, having conductive layer expose zone 13 ' optical filter.

Above-mentioned conductive layer expose the zone 13 ' be used as earthy electrode part.The width (L of Fig. 2 and Fig. 3) in the faciola shape zone of this two edges portion is generally 1～100mm, preferred especially 2～50mm.In addition, edge part hard conating 16 ' the width in faciola shape zone be generally 0.1～20mm, preferred especially 0.5～5mm.

The conductive layer of Fig. 3 expose the zone 13 ' be belt-like zone, but, among the present invention, because as long as can form the conductive layer that exposes of electrode part in the edge part existence, so conductive layer exposes the zone, its partial graph is for example shown in Figure 4, can be at interval island areas 13 ' ' belt-like zone of the interruption of continued presence.Island areas 13 ' ' can be arbitrary shapes such as rectangle, ellipse, circle, polygon, in addition, island areas 13 ' ' also can be identical size, but also can be different mutually.

On hard conating 16, for making the antireflection raising, the low-index layer lower than the refractive index of hard conating 16 etc. is set preferably, at this moment, all surfaces at hard conating forms usually.Be provided with under the situation of hard conating and low-index layer etc., can carry out coating separately respectively, (light) curing etc. but, behind coating hard conating and the low-index layer etc., also can be carried out (light) once and solidify.In addition, on above-mentioned metal conducting layer, form hard conating 16, but, aforesaid antiglare layer is set preferably, low-index layer further also preferably is set as required according to the desirable design of optical filter.Antiglare layer preferably has the hard conating of anti-dazzle functional layer.

In display optical filter of the present invention shown in Figure 2,1 example of skeleton diagram of section that the optical filter of low-index layer (anti-reflection layer) further is set on the hard conating is shown in Fig. 5, in Fig. 5, on the surface of one side of transparent membrane 22, with the order setting of netted metal conducting layer 23, hard conating 26 and low-index layer 27, near infrared ray absorption layer 24 and translucent adhesive layer 25 thereon are set on the surface of opposite side.At this moment carry out near the marginal surface that is radiated at low-index layer 27 of laser.Hard conating 26 is same with Fig. 2, in the edge part zone, across conductive layer expose the zone 23 ', its the outside have edge part hard conating 26 ', low-index layer 27 is also in the edge part zone, across conductive layer expose the zone 23 ', its outside edge part hard conating 26 ' on have edge part low-index layer 27 '.Be arranged on the layer (for example, high refractive index layer) on the hard conating 26 (26 '), be arranged on central portion and edge part equally with low-index layer 27.In addition, the transparency is improved thus by hard conating 16 landfills in the grid space of net-shaped metal layer 24, and net-shaped metal layer 14 too.As mentioned above, antiglare layer preferably is set and replaces hard conating 26.

In said structure, the position of hard conating 26 and low-index layer (waiting anti-reflection layer) 27 and near infrared ray absorption layer 24 can mutual alternative, and in addition, near infrared ray absorption layer 24 also can be located between metal conducting layer 23 and the hard conating 26.But, the structure of Fig. 5, in assembling during display, conductive layer is owing to be present in the front (face side) of display, and it is favourable being provided with aspect easy ground connection.

In above-mentioned Fig. 1～5, exposing the zone for conductive layer is that the scheme that edge part zone but its outside is provided with edge part hard conating etc. describes.Among the present invention, be also included within edge part and do not have such hard conating etc., promptly the scheme that conductivity is exposed the zone is set at edge part.About such scheme, describe in the time of with reference to Fig. 6～10.

Fig. 6 shows is the constructed profile of an example of above-mentioned of the present invention of the explanation manufacture method that has electrode part display optical filter.The Zone Full on the surface of the transparent membrane 32 of rectangle, form netted metal conducting layer 33 (1), then, form the hard conating 36 (2) that constitutes by synthetic resin at the Zone Full of netted metal conducting layer 33 as first functional layer, then, 4 edge parts around hard conating 36 whole (also can only in both sides of the edge portion), along its edge illumination laser (3), hard conating 36 is because be the layer that is made of synthetic resin, so the hard conating 36 in laser radiation zone decomposes or burning and disappearing.Thus, remove the hard conating 36 of 4 edge parts, expose metal conducting layer, form conductive layer expose zone 33 ', form electrode part (4) like this.During like this with the not residual mode irradiating laser of edge part hard conating,, should be noted that because the situation of transparent membrane softening transform is arranged.Then, usually form, as shown in Figure 7, obtained the optical filter of one of preferred version of the present invention as the near infrared ray absorption layer 34 of second functional layer and translucent adhesive layer 35 thereon in the inboard of transparent membrane 32 (being generally all surfaces).Translucent adhesive layer 35 can not be provided with yet.In addition, also can above-mentioned hard conating be set being provided with near infrared ray absorption layer 34 in advance and being provided with on the transparent membrane of translucent adhesive layer 35 thereon.On the electrode part of the optical filter that obtains (conductive layer expose zone 33 '), be connected to the various electric conducting materials that obtain ground connection.

In addition, in Fig. 6 and Fig. 7, to four marginal portion irradiating lasers around hard conating 36 whole, but also can be to the portion of the both sides of the edge at least irradiating laser of the hard conating 36 of rectangle, both sides of the edge portion at least form conductive layer expose zone 33 '.During irradiating laser, can use around 1 laser radiation all or two edges portion, also can use several each limit etc. of shining respectively, can carry out by the suitable illuminating method of conversion.

Shown in Figure 7, the conductive layers that around hard conating 36 whole, form the frame shape expose zone 33 ' the vertical view of 1 example of preferred optical filter of the present invention be shown among Fig. 8.

Make above-mentioned Fig. 6 and shown in Figure 7 around all, have conductive layer expose zone 33 ' optical filter the time, can aforesaid individual manufacturing, but continuous manufacturing that also can be as described below, promptly after forming hard conating on the transparent membrane 32 of strip with net metal conductive layer 33, to two edges portion irradiating laser, two edges portion form conductive layer expose zone 33 ', then, severing, edge part irradiating laser on the both sides of severing, two edges portion form conductive layer expose zone 33 ', the conductive layer that forms the frame shape expose zone 33 ', can obtain thus around all, having conductive layer expose zone 33 ' optical filter.

Above-mentioned conductive layer expose the zone 33 ' be used as earthy electrode part.The width (L of Fig. 7 and Fig. 8) in the faciola shape zone of this two edges portion is generally 2～100mm, preferred especially 5～50mm.In addition, edge part hard conating 16 ' the width in faciola shape zone be generally 0.1～20mm, be preferably 0.5～5mm especially.

The conductive layer of Fig. 8 expose the zone 33 ' be belt-like zone, but, among the present invention, because as long as can form the conductive layer that exposes of electrode part in the edge part existence, so conductive layer exposes the zone, its partial graph is for example shown in Figure 9, can be the island areas 33 " belt-like zone of the interruption of continued presence at interval.Island areas 33 " can be arbitrary shapes such as rectangle, ellipse, circle, polygon.Island areas 33 " also can be identical size, but also can be different mutually.

On hard conating 36, for making the antireflection raising, the low-index layer lower than the refractive index of hard conating 36 etc. is set preferably, but this moment, all surfaces at hard conating forms usually.Be provided with under the situation of hard conating and low-index layer etc., can be coated with respectively, (light) solidify etc., but, also can behind coating hard conating and low-index layer etc., carry out (light) once and solidify.In addition, on above-mentioned metal conducting layer, form hard conating 36, but, aforesaid antiglare layer is set preferably, low-index layer further also preferably is set as required according to the desirable design of optical filter.

In the described display optical filter of the present invention of Fig. 7,1 example of skeleton diagram of section that the optical filter of low-index layer (anti-reflection layer) further is set on the hard conating is shown in Figure 10.In Figure 10, on the surface of a side of transparent membrane 42,, near infrared ray absorption layer 44 and translucent adhesive layer 45 thereon are set on the surface of opposite side with the order setting of netted metal conducting layer 43, hard conating 46 and low-index layer 47.At this moment carry out near the marginal surface that is radiated at low-index layer 47 of laser.Same with Fig. 7, exist in the edge part zone conductive layer expose the zone 43 '.The layer that hard conating 46 is provided with (for example high refractive index layer) is arranged on central portion equally with low-index layer 47.In addition, the transparency is improved thus by hard conating 46 landfills in the grid space of net-shaped metal layer 43.

In said structure, the position of hard conating 46 and low-index layer (waiting anti-reflection layer) 47 and near infrared ray absorption layer 44 can mutual alternative, and in addition, near infrared ray absorption layer 44 also can be located between metal conducting layer 43 and the hard conating 46.But, the structure of Figure 10, in assembling during display, conductive layer is owing to be present in the front (face side) of display, and it is favourable therefore being provided with aspect easy ground connection.

Above-mentioned metal conducting layers 13,23 etc. are for for example netted metal level or contain the layer of metal or the alternative stacked film of metal oxide layer (dielectric layer) or metal oxide layer and metal level.Netted metal level or the layer that contains metal form or metallic fibrous layer usually by etching or by print process.Obtain low resistance thus easily.Usually netted metal level or contain metal layer grid the space as previously mentioned, by hard conating 16,26 etc. or antiglare layer landfill.Improve the transparency like this.During without landfills such as hard conatings 16,26, preferably use other layer, for example near infrared ray absorption layer 14,24 etc. or its special-purpose transparent resin layer come landfill.

Above-mentioned low-index layer 27 grades constitute anti-reflection layer.That is, the composite membrane by hard conating 16,26 etc. and the low-index layer that is provided with has thereon shown anti-reflection effect expeditiously.Between this low-index layer and hard conating, high refractive index layer can be set, improve anti-reflective function thus.

It is also passable that low-index layer 27 grades are not set in addition, only is transparent membrane, also more passable than hard conating 16,26 of transparent membrane refractive index high or low (preferably low) etc. Hard conating 16,26, anti-reflection layer 27 etc. are formed by coating usually.Consider preferred from productivity, economical point.

Above-mentioned near infrared ray absorption layer 14,24 etc. has the function of the unwanted light such as neon is luminous of blocking PDP.Be generally and contain the layer that has the pigment of absorption maximum at 800～1200nm. Transparent bonding layer 15,25 generally designs for being easy to be assembled on the display.On translucent adhesive layer 15, stripping film can be set.

Electrode part is the metal conducting layer on every side of optical filter, and its width (L of Fig. 3 etc.) is generally 2～100mm as mentioned above, preferred especially 5～50mm.Metal conducting layer is preferably net-shaped metal layer.

The display optical filter of above-mentioned rectangle uses 1 transparent membrane, but also can use 2 transparent membranes.For example, also can be by on metal conducting layer with the transparent membrane of metal conducting layer (generally having near infrared ray absorption layer etc. overleaf), the back side of transparent membrane that will have anti-reflection layers such as hard conating and low-index layer is by the adhesive layer lamination, by from anti-reflection layers such as hard conating and low-index layer as described above irradiating laser obtain.Or following structure: on the surface of transparent membrane, order setting with anti-reflection layers such as net metal conductive layer, hard conating and low-index layers, near infrared ray absorption layer and the translucent adhesive layer on it are set on the surface of another transparent membrane, are bonded with each other between the surface that layer is not set of 2 transparent thin film layers.At this moment, the former laminated body is made by method of the present invention.

Under situation favourable in the manufacturing, adopt 2 transparent membranes, but because thickness is big, it is disadvantageous becoming broad aspect at volume.

Use the display optical filter of 1 above-mentioned transparent membrane, as mentioned above, for example by on all surfaces of a side of the plastic film of rectangle, form metal conducting layer, then on conductive layer, form anti-reflection layers such as hard conating and low-index layer, by laser radiation, form conductive layer and expose the zone, form near infrared ray absorption layer, translucent adhesive layer etc. (perhaps forming at the back side of plastic film in advance) on another surface thus obtain optical filter.The filter of making designs according to the shape of the display part of all surfaces of each display, and such optical filter is extruded with the electrode part of conductive layer around, has formed ground connection and has been assemblied in electrode part (grounding electrode) on the display easily.

In the present invention, by aforesaid laser radiation, form conductive layer and expose the zone.The operable laser of the present invention, so long as can remove by making synthetic resin layer burning, decomposition etc. at short notice, do not damage the laser of metal conducting layer or the laser that can set like this just passable.As the laser radiation technology, line beam forming technique (line beam forming technique), laser light branch technique (laseroptical branching technique), dipulse (double pulse) technology etc. can be used alone or in combination.As laser light, can use YAG laser (two frequencys multiplication, frequency tripling), ruby laser, excimer laser, semiconductor laser, CO ₂Laser, argon laser etc.Especially YAG laser (two frequencys multiplication, frequency tripling), semiconductor laser, CO ₂Laser can make synthetic resin layer remove by burning, decomposition etc. in the extremely short time, so preferred especially.This is because these wavelength are normally consistent with the absorption of the synthetic resin of first functional layer.The preferred power output 5W of laser～15kW, laser focusing is become the diameter in the focal position is 0.05～10mm, carries out with the translational speed of 1～3000mm/ second.

Under the situation of the transparent membrane of rectangle, each layer can be that batch formula forms, but preferably on transparent membrane continuously, makes each layer with continous way, mode forms, and severing with continuous rolling (rollto roll) usually.

The material that uses about display optical filter of the present invention carries out the following description.

The plastic film that transparent membrane is normally transparent is as its material, so long as transparent (meaning is " to a visible transparent ") is not particularly limited.Example as plastic film, can enumerate polyester { for example, polyethylene terephthalate (PET), polybutylene terephthalate }, polymethyl methacrylate (PMMA), acrylate, Merlon (PC), polystyrene, triacetate resin, polyvinyl alcohol, polyvinyl chloride, Vingon, polyethylene, ethane-acetic acid ethyenyl copolymer, polyvinyl butyral resin, metal ion crosslinked ethylene-methacrylic acid copolymer, polyurethane, glassine paper etc.In these, from consider preferred polyethylene terephthalate (PET), Merlon (PC), polymethyl methacrylate (PMMA) etc. for the high especially aspect of patience height, the transparency of the load that adds man-hour (heat, solvent, bending etc.).Particularly PET is preferred because processing characteristics is good.In addition, the organic pigment class that second functional layer is contained, be subjected to ultraviolet ray and easily durability reduce, but, polyester such as PET have so ultraviolet tendency of absorption and preferred.

As the thickness of transparent membrane, different and different according to the purposes of optical filter etc., be generally 1 μ m～10mm, preferred 1 μ m～5mm, preferred especially 25～250 μ m.

Metal conducting layer of the present invention is configured to the sheet resistance value of optical filter of gained generally at 10 Ω/below the, the scope of preferred 0.001～5 Ω/, preferred especially 0.005～5 Ω/.The conductive layer of net (grid) shape also is preferred, and perhaps conductive layer also can be the layer (transparent conductive film of metal oxide (ITO etc.)) that becomes embrane method to obtain by gas phase.And then also can be the alternative stacked body (for example, the laminated body of ITO/ silver/ITO/ silver/ITO) of metal levels such as the dielectric film of metal oxides such as ITO and Ag.

As netted metal conducting layer, can list, the metal of metallic fiber and coating metal organic fiber is done the conductive layer that reticulates, layer etching and processing such as Copper Foil on the transparent membrane are reticulated and be provided with the conductive layer of peristome, on transparent membrane, conductive ink is printed webbed conductive layer etc.

Under the situation of netted metal conducting layer, as grid, preferably the live width that is formed by metallic fiber and/or coating metal organic fiber is 1 μ m～1mm, and aperture opening ratio is 40%～95%, and more preferably live width is 10～500 μ m, and aperture opening ratio is 50%～95%.In netted conductive layer, if live width surpasses 1mm, then electromagnetic wave shielding performance improves, but the aperture opening ratio reduction, both set up simultaneously can not to make it.Less than 1 μ m is as the intensity decreases of grid, operating difficulties.If aperture opening ratio surpasses 95% in addition, then be difficult to keep shape as grid, during less than 40%, photopermeability descends, and the light quantity that comes from display also reduces.

And the aperture opening ratio of so-called conductive mesh is meant the shared area ratio of projected area split shed part at this conductive mesh.

As the metallic fiber that constitutes netted conductive layer and the metal of coating metal organic fiber, can use copper, stainless steel, aluminium, nickel, titanium, tungsten, tin, lead, iron, silver, carbon or their alloy, preferably use copper, stainless steel, nickel.

As the organic material of coating metal organic fiber, can use polyester, nylon, vinylidene chloride, aromatic polyamides, polyvinyl, cellulose etc.

When the paper tinsel of conductivity such as metal forming is carried out pattern etching,, copper, stainless steel, aluminium, nickel, iron, brass or their alloy be can use, copper, stainless steel, aluminium preferably used as the metal of metal forming.

If the thickness of metal forming thin excessively, then not preferred at the aspects such as operation of operability or pattern etching, if blocked up, exerts an influence to the film thickness of gained, and required time of etching work procedure is elongated, so about preferred 1～200 μ m.

Shape to etched pattern is not particularly limited, and for example can list, and forms the cancellate metal forming in tetragonal hole; The metal forming of the stamped metal shape in formation circle, hexagon, triangle or oval-shaped hole etc.In addition, the hole is not limited to the arrangement of rule, can be irregular pattern.Area ratio in the perspective plane of this metal forming split shed part preferably occupies 20～95%.

Except that above-mentioned, as netted metal conducting layer, can use the net metal conductive layer that obtains as follows: form a little at film surface by the material that dissolves in solvent, form by the conductive material layer of making for the insoluble electric conducting material of solvent at film surface, by film surface is contacted with solvent, remove a little and point on conductive material layer, thereby obtain the net metal conductive layer.

On the metal conducting layer, also can the coat of metal be set further, improve conductivity, (when particularly forming a little method) by the material that dissolves in solvent.The coat of metal forms by known galvanoplastic, electroless plating method.Metal as plating uses generally can use copper, copper alloy, nickel, aluminium, silver, gold, zinc or tin etc., and preferably copper, copper alloy, silver or nickel are particularly considered from economy, conductivity, preferably use copper or copper alloy.

In addition, also can give anti-dazzle performance, when carrying out this non-glare treated, the melanism processing also can be carried out in the surface of (grid) conductive layer, for example can carry out the oxidation processes of metal film, the coating of the printing ink of the black plating of evanohm etc., black or dark-coloured system etc.

Anti-reflection layer of the present invention, be than generally as the composite membrane of the low hard conating of the transparent membrane refractive index of substrate with the low-index layer lower disposed thereon than hard conating refractive index, or the composite membrane of high refractive index layer is set further between hard conating and low-index layer.Even antireflection film only is the hard conating lower than the refractive index of substrate also is effective, but, when the refractive index of substrate is hanged down, also can be composite membrane, or the composite membrane of high refractive index layer further is set on low-index layer than high hard conating of the refractive index of transparent membrane and low-index layer disposed thereon.

As hard conating, be with the layer of synthetic resin such as acrylate layer, epoxy resin layer, urethane resin layer, silicone layer as principal component.Usually its thickness is 1～50 μ m, preferred 1～10 μ m.Synthetic resin generally is thermosetting resin, ultraviolet curable resin, preferred ultraviolet curable resin.Ultraviolet curable resin can solidify at short notice, and the productivity excellence is considered from the viewpoint of removing easily by laser in addition, also is preferred.

As thermosetting resin, can list phenolic resins, resorcinol resin, urea resin, melmac, epoxy resin, acrylate, polyurethane resin, furane resins, silicones etc.

As hard conating, be preferably the cured layer of ultraviolet curable resin composition (constituting) as the layer of main component by ultraviolet curable resin, Photoepolymerizationinitiater initiater etc., its thickness is 1～50 μ m usually, preferred 1～10 μ m.

As ultraviolet curable resin (monomer, oligomer), for example can list, (methyl) 2-Hydroxy ethyl acrylate, (methyl) acrylic acid-2-hydroxy propyl ester, (methyl) acrylic acid-4-hydroxyl butyl ester, 2-ethylhexyl polyethoxy (methyl) acrylate (2-ethylhexylpolyethoxy (meth) acrylate), (methyl) acrylic acid benzyl ester, (methyl) isobornyl acrylate, (methyl) phenoxyethyl acrylate, tristane list (methyl) acrylate, (methyl) acrylic acid two cyclopentene oxygen base ethyl esters, (methyl) acrylic acid tetrahydro furfuryl ester, acryloyl morpholine, the N-caprolactam, (methyl) acrylic acid 2-hydroxyl-3-phenoxy group propyl ester, the adjacent phenyl phenoxy ethyl of (methyl) acrylic acid, neopentyl glycol two (methyl) acrylate, neopentyl glycol dipropoxy two (methyl) acrylate, 3-hydroxypivalic acid neopentyl glycol two (methyl) acrylate, tristane dihydroxymethyl two (methyl) acrylate, 1,6-hexylene glycol two (methyl) acrylate, nonanediol two (methyl) acrylate, trimethylolpropane tris (methyl) acrylate, pentaerythrite three (methyl) acrylate, pentaerythrite four (methyl) acrylate, trimerization [(methyl) acrylyl oxy-ethyl] isocyanuric acid ester, (methyl) acrylate monomer classes such as two (trihydroxy methyl) propane four (methyl) acrylate; Polyol compound (ethylene glycol for example, propylene glycol, neopentyl glycol, 1, the 6-hexylene glycol, the 3-methyl isophthalic acid, the 5-pentanediol, 1, the 9-nonanediol, 2-ethyl-2-butyl-1, ammediol, trimethylolpropane, diethylene glycol, DPG, polypropylene glycol, 1, the 4-hydroxymethyl-cyclohexane, polymer with bis phenol A ethyoxyl glycol, polyalcohols such as polytetramethylene glycol, above-mentioned polyalcohols and butanedioic acid, maleic acid, itaconic acid, adipic acid, hydrogenated dimer acids, phthalic acid, M-phthalic acid, the reactant polyester polyols alcohols of polyacids such as terephthalic acid (TPA) or their anhydrides, the reactant polycaprolactone polyol class of above-mentioned polyalcohols and 6-caprolactone, the reactant of the 6-caprolactone of above-mentioned polyalcohols and above-mentioned polyacid or their anhydrides, polycarbonate polyol, polymer polyatomic alcohol etc.) and organic multiple isocyanate (for example, toluene di-isocyanate(TDI), isofoer diisocyanate, XDI, diphenyl-methane-4,4 '-vulcabond, the double cyclopentenyl vulcabond, hexamethylene diisocyanate, 2,4,4 '-trimethyl-hexamethylene diisocyanate, 2,2 ', 4-trimethyl-hexamethylene diisocyanate etc.) and (methyl) acrylate that contains hydroxyl (for example, (methyl) 2-Hydroxy ethyl acrylate, (methyl) acrylic acid-2-hydroxy propyl ester, (methyl) acrylic acid-4-hydroxyl butyl ester, (methyl) acrylic acid 2-hydroxyl-3-phenoxy group propyl ester, cyclohexane-1,4-dihydroxymethyl list (methyl) propionic ester, pentaerythrite three (methyl) acrylate, pentaerythrite five (methyl) acrylate, dipentaerythritol six (methyl) acrylate, glycerol two (methyl) acrylate etc.) reactant is polyurethane (methyl) acrylate, bisphenol A type epoxy resin, bisphenol-type epoxy resin such as bisphenol f type epoxy resin and (methyl) acrylic acid reactant are (methyl) acrylate oligomer class such as bisphenol type epoxy (methyl) acrylate etc.These compounds can mix use more than a kind or 2 kinds.Also these ultraviolet curable resins and thermal polymerization can be used as the thermosetting resin use jointly.

In order to make hard conating, preferably in above-mentioned ultraviolet curable resin (monomer, oligomer), mainly use the polyfunctional monomer of hard such as pentaerythrite three (methyl) acrylate, pentaerythrite five (methyl) acrylate, dipentaerythritol six (methyl) acrylate.

As the Photoepolymerizationinitiater initiater of ultraviolet curable resin, can use any compound that is suitable for ultraviolet curable resin character.For example can list, 2-hydroxyl-1-methyl isophthalic acid-phenyl-propane-1-ketone, 1-hydroxycyclohexylphenylketone, 2-methyl isophthalic acid-(4-methyl mercapto) phenyl)-thioxanthones such as benzophenones such as benzoin system, benzophenone, 4-phenyl benzophenone, dihydroxy benaophenonel, isopropyl thioxanthone, 2-4-diethyl thioxanthone systems such as acetophenones such as 2-morpholino propane-1 systems, benzyl idol acyl dimethyl ketal, as other special material, can use the aminomethyl phenyl glyoxalic acid.Particularly preferred can listing, 2-hydroxy-2-methyl-1-phenyl-propane-1-ketone, 1-hydroxycyclohexylphenylketone, 2-methyl isophthalic acid-(4-methyl mercapto) phenyl)-2-morpholino propane-1, benzophenone etc.These Photoepolymerizationinitiater initiaters can mix one or more of known photopolymerization promoter commonly used such as the benzoic acid as 4-dimethylamino benzoic acid system or tertiary amine system and use as required with arbitrary proportion.In addition, can only use a kind of Photoepolymerizationinitiater initiater or two or more mixing to use.Preferred especially 1-hydroxycyclohexylphenylketone (Ciba specialty chemicals system, Irgacure 184).

The amount of Photoepolymerizationinitiater initiater is generally 0.1～10 quality % with respect to resin combination, preferred 0.1～5 quality %.

And then hard conating also can contain a spot of ultra-violet absorber, infrared absorbent, age resister, coating processing aid, colouring agent etc.Particularly preferably contain ultra-violet absorber (for example, BTA is ultra-violet absorber or benzophenone series ultra-violet absorber), can prevent filter flavescence etc. effectively like this.Its consumption is generally 0.1～10 quality % with respect to resin combination, preferred 0.1～5 quality %.

The material that hard conating is preferably low than transparent membrane refractive index obtains the refractive index lower than substrate usually easily by using above-mentioned ultraviolet curable resin, therefore, as transparency carrier, preferably uses the contour refractive index materials of PET.For this reason, the hard conating preferred index is below 1.60.Thickness as previously mentioned.

High refractive index layer is preferably made in polymer (preferred ultraviolet curable resin) and is dispersed with ITO, ATO, Sb ₂O ₃, SbO ₂, In ₂O ₃, SnO ₂, ZnO, doped with Al ZnO, TiO ₂Layer (cured layer) Deng conductive metal oxide particulate (inorganic compound).As metal oxide microparticle, preferred average grain diameter is 10～10000nm, more preferably 10～50nm.Preferred especially ITO (particularly average grain diameter is 10～50nm's).Preferred index is more than 1.64.Thickness generally is the scope of 10～500nm, preferred 20～200nm.

And, when high refractive index layer is conductive layer, by the refractive index that makes this high refractive index layer 2 is more than 1.64, the minimum reflectance of the surface reflectivity of antireflection film can be in 1.5%, by index layer is more than 1.69, preferred 1.69～1.82, the minimum reflectance of the surface reflectivity of antireflection film can be in 1.0%.

Low-index layer preferably is dispersed with the particulate of the silicon dioxide, fluororesin of 10～40 weight % (preferred 10～30 weight %) etc., the layer (cured layer) of preferred hollow silica in polymer (preferred ultraviolet curable resin).The refractive index of this low-index layer preferred 1.45～1.51.If this refractive index surpasses 1.51, then the preventing reflection characteristic of antireflection film reduces.Thickness is generally the scope of 10～500nm, preferred 20～200nm.

As hollow silica, average grain diameter is 10～100nm, preferred 10～50nm, and proportion is 0.5～1.0, is preferably 0.8～0.9.

The preferred visible light transmissivity of hard conating is more than 85%, and the visible light transmissivity of high refractive index layer and low-index layer is also preferably all more than 85%.

Anti-reflection layer is by under hard conating and the above-mentioned 2 layers of situation about constituting, and for example the thickness of preferred hard conating is 2～20 μ m, and the thickness of high refractive index layer is 75～90nm, and the thickness of low-index layer is 85～110nm.

In order to form each layer of anti-reflection layer, for example, as previously mentioned, in polymer (preferred ultraviolet curable resin), cooperate above-mentioned particulate as required, the coating fluid that obtains is coated on the above-mentioned rectangle transparency carrier surface, and then after the drying, irradiation ultraviolet radiation gets final product its curing.At this moment, each layer in layer can be coated with curing, also can be coated with whole layer after, concentrate and solidify.

Concrete grammar as coating can list, and the ultraviolet curable resin that will contain acrylic monomer etc. is made solution with the toluene equal solvent and obtained coating fluid, utilizes the intaglio plate coating machine to be coated with this coating fluid, and drying is then then utilized the method for ultraviolet curing.If wet coating, then have can high speed the advantage of even and cheap film forming.After this coating,, solidify, can obtain adaptation and improve, the effect that the hardness of film rises for example by irradiation ultraviolet radiation.Above-mentioned conductive layer also can form equally.

During ultraviolet curing, the numerous light sources luminous can be adopted as light source, for example ultrahigh pressure mercury lamp, high-pressure mercury lamp, low pressure mercury lamp, chemical lamp, xenon lamp, Halogen lamp LED, mercury Halogen lamp LED, carbon arc lamp, incandescent lamp, laser etc. can be listed in ultraviolet～visible region.Irradiation time can not come to determine according to the kind of lamp, the intensity of light source without exception, for the several seconds～about several minutes.In addition, for promoting to solidify, also can laminated body be heated to 40～120 ℃ in advance, to its irradiation ultraviolet radiation.

Antiglare layer preferably is set replaces above-mentioned hard conating.Obtain the big product of anti-reflection effect easily.As antiglare layer, can for example preferably list, polymer particles transparent filling agents such as (for example acrylate pearls) (preferred average grain diameter 1～10 μ m) is dispersed in liquid coating, the drying that forms in the binding agent, thereby the antiglare layer that obtains, or will in forming with material, above-mentioned hard conating add transparent filling agent (polymer particles, acrylate pearl for example) the liquid coating that forms, solidifies, obtain having the antiglare layer of hard conating function.The bed thickness of antiglare layer is generally the scope of 0.01～20 μ m.

Near infrared ray absorption layer generally is to obtain by form the layer that contains pigment etc. on the surface of transparent membrane.Near infrared ray absorption layer can be by for example, will comprise the ultraviolet curing that contains above-mentioned pigment and resin glue etc. or the resin of electron ray curing or the coating fluid of thermosetting resin and be coated with, and carries out drying as required and make its curing and obtain.Perhaps be coated with, only make then its dry obtaining by the coating fluid that will contain above-mentioned pigment and resin glue etc.Making under the situation that film uses, generally is the near-infrared shielding film, for example is the film that contains pigment etc.As pigment, it generally is the material that has absorption maximum at the wavelength of 800～1200nm, as an example, can list phthalocyanine and be pigment, metal complex and be pigment, nickel and connect two sulphur alkene to cooperate system pigment, cyanine be that pigment, the sour cyanines in side are that pigment, poly-methine are that pigment, azomethine are that pigment, azo are that pigment, polyazo are that pigment, diimmonium pigment, ammonium are that pigment, anthraquinone are pigment, preferred especially cyanine is that pigment or phthalocyanine are pigment, diimmonium pigment.These pigments can be used alone or in combination.As the example of resin glue, can list thermoplastic resins such as acrylate.

In the present invention, also can make near infrared ray absorption layer have the regulatory function of tone by near infrared ray absorption layer being given neon luminous absorption function.For this reason, the luminous absorbed layer of neon can be set, absorb pigment but also can near infrared ray absorption layer, contain the luminous selection of neon.

The selection luminous as neon absorbs pigment, can list, cyanine is that pigment, the sour cyanines in side are that pigment, anthraquinone are that pigment, phthalocyanine are that pigment, poly-methine are that pigment, polyazo are that pigment, camomile ring system pigment (azulenium dyes), diphenyl-methane are that pigment, triphenylmenthane are pigment.Such selection absorbs pigment needs near the luminous selection absorbability of the neon of 585nm and little in its visible wavelength absorption in addition, so preferred maximum absorption wavelength is 575nm～595nm, the absorption spectrum half peak breadth is below the 40nm.

In addition, during the multiple combination of absorption pigment that near infrared ray and neon is luminous, when the solubility problem of pigment occurring, when mixing causes reacting between the pigment, when confirming that thermal endurance, moisture-proof etc. reduce, need not in one deck, contain all near infrared absorbing coloring matter, also can in other layer, contain.

In addition, so long as optical characteristics is not brought considerable influence, also can further add pigment, ultra-violet absorber, antioxidant of painted usefulness etc.

As the near-infrared absorbing characteristic of optical filter of the present invention, the transmitance of preferred 850～1000nm is below 20%, further preferred 15%.In addition, as selecting absorbability, the transmitance of 585nm is preferably below 50%.Particularly the former the time, effect with permeability minimizing of the wavelength region may that makes the misoperations such as remote control of being pointed out peripheral instrument, under the latter's the situation, because having the orange of peak value at 575nm～595nm is the reason that colorrendering quality is degenerated, so have the effect that absorbs this orange wavelength, improve red degree thus, the reproducibility of color is improved.

The bed thickness of near infrared ray absorption layer is generally 0.5～50 μ m.

On the metal conducting layer that edge part exposes, paste when paying the conductive paste adhesive tape, this conductive paste adhesive tape, be the tack coat that is dispersed with conductive particle in a side surface setting of metal forming, can use acrylic acid series, rubber system, silicon in this tack coat is binding agent or the material that cooperates curing agent in epoxy system, phenolic resins.

As the electroconductive particle that is dispersed in tack coat,, can use various materials so long as electrically good conductor gets final product.For example can use the metal dust of copper, silver, nickel etc., with the resin of such coating metal or ceramic powder etc.In addition, also have no particular limits, can adopt the arbitrary shape of flakey, dendroid, granular, pelletizing shape etc. about shape.

The use level of this electroconductive particle is with respect to the polymer that constitutes tack coat, preferred 0.1～15 capacity %, in addition, its average grain diameter is 0.1～100 μ m preferably, by such regulation use level and particle diameter, prevent that electroconductive particle is condensing, can obtain good electrical conductivity.

As the metal forming of the base material that becomes the conductive paste adhesive tape, can use the sheet metal of copper, silver, nickel, aluminium, stainless steel etc., its thickness is 1～100 μ m normally.

Tack coat can be coated on formation easily on this metal forming with above-mentioned binding agent and the mixed uniformly in certain proportion material of electroconductive particle by utilizing roll-type glue spreader, mould glue spreader, Scraper applicator, metering bar coater, curtain coater, flush coater etc.

The thickness of such tack coat is 5～100 μ m normally.

Replace the conductive paste adhesive tape, the cement of being made up of the material that constitutes above-mentioned tack coat can be coated on the exposed division of conductive layer, paste thereon and pay above-mentioned conductive paste adhesive tape.

Translucent adhesive layer of the present invention is for optical thin film of the present invention being joined to the layer on the display, so long as have the material of engagement function, use any resin can, for example can to use the acrylic ester binding agent, the rubber that are formed by butyl acrylate etc. be binding agent, be binding agent and cement with SEBS (styrene/ethylene/butylene/styrene) and SBS thermoplastic elastomer (TPE)s (TPE) such as (styrene/butadiene/styrene) as the TPE of main component.

Its bed thickness generally is preferably 5～500 μ m, is preferably the scope of 10～100 μ m especially, and optical filter generally can be by equipping on the glass plate that above-mentioned adhesive layer is crimped onto display.

In the present invention, when using 2 transparent membranes, joint (adhesive layer) for them for example can list, ethene-vinyl acetate copolymer, ethylene-methyl acrylate copolymer, acrylic resin (for example, ethene-(methyl) acrylic copolymer, ethylene-ethyl acrylate copolymer, ethene-(methyl) methyl acrylate copolymer, metal ion crosslinked ethene-(methyl) acrylic copolymer), partly-hydrolysed ethene-vinyl acetate copolymer, carboxylated ethene-vinyl acetate copolymer, ethene-(methyl) acrylic compounds-copolymer-maleic anhydride, ethane-acetic acid ethyenyl-vinyl copolymers such as (methyl) acrylate copolymer (and, " (methyl) acrylic acid " expression " acrylic or methacrylic acid ").In addition, also can use polyvinyl butyral resin (PVB) resin, epoxy resin, phenolic resins, silicones, mylar, polyurethane resin, rubber is thermoplastic elastomer (TPE)s such as binding agent, SEBS and SBS etc.What but, obtain good zygosity easily is that acrylate is binding agent, epoxy resin.

Its bed thickness is preferably 10～50 μ m usually, is preferably the scope of 20～30 μ m especially, and optical filter generally can be by equipping on the glass plate that above-mentioned adhesive layer heating is crimped onto display.

As the material of above-mentioned translucent adhesive layer, when using EVA, as EVA, to use vinyl acetate content be 5～50 weight %, be preferably the material of 15～40 weight %.If the content of vinyl acetate is when being less than 5 weight %, transparency existing problems then, if surpass 40 weight %, then not only mechanical strength significantly reduces in addition, and the film forming difficulty that becomes, and film is easy to generate adhesion each other.

As crosslinking agent, during heat cross-linking, organic peroxide is suitable, consider the sheet processing temperature, crosslinking temperature, aspects such as storage-stable are selected, as operable peroxide, for example can list, 2,5-dimethylhexane-2,5-diperoxy hydrogen, 2,5-dimethyl-2, two (tert-butyl peroxide) hexanes-3 of 5-, di-tert-butyl peroxide, the tert-butyl peroxide isopropylbenzene, 2,5-dimethyl-2, two (tert-butyl peroxide) hexanes of 5-, cumyl peroxide, α, α '-two (tert-butyl peroxide isopropyl) benzene, normal-butyl-4, two (tert-butyl peroxide) valerates of 4-, 2, two (tert-butyl peroxide) butane of 2-, 1, two (tert-butyl peroxide) cyclohexanes of 1-, 1, two (tert-butyl peroxide)-3 of 1-, 3, the 5-trimethyl-cyclohexane, tert-butyl peroxide benzoate, benzoyl peroxide, peroxide acetic acid butyl ester, 2,5-dimethyl-2, two (tert-butyl peroxide) hexanes-3 of 5-, 1, two (tert-butyl peroxide)-3 of 1-, 3, the 5-trimethyl-cyclohexane, 1, two (tert-butyl peroxide) cyclohexanes of 1-, methyl ethyl ketone peroxide, 2,5-dimethyl hexyl-2,5-diperoxy benzoic ether, TBHP, hydrogen peroxide is to alkane in the Meng, chloro benzoyl peroxide, isobutyryl peroxide tert-butyl ester, hydroxyl heptyl peroxide, chlorine peroxide hexanone etc.These peroxide can mix use separately more than a kind or 2 kinds, with respect to 100 parts of EVA, be generally below 5 weight portions, preferably use with the ratio of 0.5～5.0 mass parts.

Organic peroxide, mixing in EVA in extruder, roller mill etc. usually, but also can be dissolved in organic solvent, plasticizer, the vinyl monomer etc., add to by the impregnation method in the film of EVA.

And,, also can add various acryloxy or methacryloxy and the allylic compounds of containing for the rerum natura (mechanical strength, optical characteristics, zygosity, weatherability, anti-albefaction, crosslinking rate etc.) that improves EVA.As the compound that uses with such purpose, the acrylic or methacrylic acid derivative, for example, its ester and acid amides are the most common, as the ester residue, except alkyl such as methyl, ethyl, dodecyl, stearyl, lauryl, can enumerate cyclohexyl, tetrahydrofurfuryl, amino-ethyl, 2-hydroxyethyl, 3-hydroxypropyl, 3-chloro-2-hydroxyl-propyl group etc.In addition, can use and the ester of polyfunctional alcohol such as ethylene glycol, triethylene glycol, polyethylene glycol, trimethylolpropane, pentaerythrite.As acid amides, DAAM is representational.

As its example, can list, multifunctional esters such as the acrylic or methacrylic acid esters of trimethylolpropane, pentaerythrite, glycerine etc. etc., or triallyl cyanurate, triallyl isocyanurate, diallyl phthalate, diallyl isophthalate, diallyl maleate etc. contain allylic compound, they can one or more mix use separately, with respect to 100 mass parts EVA, can use 0.1～2 mass parts usually, preferred 0.5～5 mass parts.

When EVA is passed through photo-crosslinking, replace above-mentioned peroxide, can use the following sensitising agent of 5 mass parts usually with respect to 100 mass parts EVA, preferred 0.1～3.0 mass parts.

At this moment, as operable sensitising agent, for example can list, styrax, benzophenone, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin isobutyl ether, dibenzoyl (dibenzyl), 5-nitro acenaphthene, hexacholorocyclopentadiene, PNB, paranitroanilinum, 2,4,6-trinitroaniline, 1,2-benzo anthraquinone, 3-methyl isophthalic acid, 3-diaza-1,9-benzo anthraquinone etc., these can mix use separately more than a kind or 2 kinds.

In addition, as engaging promoter, can and use silane coupler, as this silane coupler, can list, vinyltriethoxysilane, vinyl three (beta-methoxy-ethyoxyl) silane, gamma-methyl allyl acyloxypropyl trimethoxysilane, vinyltriacetoxy silane, γ-(2, the 3-glycidoxy) propyl trimethoxy silicane, γ-glycidol ether propyl-triethoxysilicane, β-(3, the 4-epoxycyclohexyl) ethyl trimethoxy silane, γ-chloro propyl group methoxy silane, vinyl trichlorosilane, γ-Qiu Jibingjisanjiayangjiguiwan, γ-An Jibingjisanyiyangjiguiwan, N-β (amino-ethyl)-gamma-amino propyl trimethoxy silicane etc.

Silane coupler, with respect to 100 mass parts EVA, usually can be with 0.001～10 mass parts, preferably use a kind or be use mixing two or more with the ratio of 0.001～5 mass parts.

And, can also contain a spot of ultra-violet absorber, infrared absorbent, age resister, coating processing aid, colouring agent etc. in the EVA knitting layer that the present invention relates to.In addition, according to circumstances different, can also contain fillers such as carbon black, hydrophobic silica, calcium carbonate on a small quantity.

The adhesive layer that is used for above-mentioned joint, by for example EVA and above-mentioned additive being mixed, after usefulness extruder, roller etc. were mixing, the shape of utilizing one-tenth embrane method sheets such as calendering, roll-type, T mould are extruded, blowing to be shaped to regulation was made.

On anti-reflection layer, protective layer can be set, protective layer preferably similarly forms with above-mentioned hard conating.

As the material that is arranged on the stripping film on the translucent adhesive layer, the preferred glass transition temperature is the transparent polymer more than 50 ℃, as such material, except polyethylene terephthalate, the poly terephthalic acid cyclohexyl, polyester based resins such as Polyethylene Naphthalate, nylon 46, modification of nylon 6T, nylon MXD 6, polyamide-based resin such as polyphthalamide, polyphenylene sulfide, ketone such as poly thioether sulfone are resin, polysulfones, sulfones such as polyether sulfone are beyond the resin, can also use with the polyethers nitrile, polyarylate, Polyetherimide, polyamidoimide, Merlon, polymethyl methacrylate, primary cellulose acetate, polystyrene, polymer such as polyvinyl chloride are the resin of main component.Wherein, be fit to use Merlon, polymethyl methacrylate, polyvinyl chloride, polystyrene, polyethylene terephthalate.Preferred 10～200 μ m of thickness, preferred especially 30～100 μ m.

Optical filter subsides of the present invention are paid in 1 example of the state of the picture display face of the plasma display device of one of display and are shown in Figure 11.Surface at the display surface of display pannel 50 engages optical filters by translucent adhesive layer 55, promptly optical filter as follows is located on the display surface, on the surface of one side of the transparent membrane 52 of this optical filter, order setting with anti-reflection layers 57 such as netted conductive layer 53, hard conating 56, low-index layers is provided with near infrared ray absorption layer 54 and translucent adhesive layer 55 on another surface of transparent membrane 52.And, the edge part (lateral edge portion) of filter expose netted conductive layer 53 ', this netted conductive layer 53 that exposes ' be arranged on plasma display device 50 around metal cap 59 become contact condition by sealing strip (leaf-spring-like metal parts) 58.Replace sealing strip (leaf-spring-like metal parts), can use conductivity sealing ring etc.Thus, ground connection is finished in optical filter and metal cap 59 conductings.Metal cap 59 can be metal frame, framework.Can know by Figure 11 and to find out that netted conductive layer 53 is facing to looking hearer's side.Metal cap 59 covered conductive layer 53 edge part from about edge part 2～20mm.In addition, change the shape of metal cap 59, can be with metal cap 59 and netted conductive layer 53 ' directly contact.

PDP display unit of the present invention, usually use plastic film as transparency carrier, so can be as mentioned above with filter of the present invention with directly fit as its surperficial glass pane surface, when particularly using 1 transparent membrane, help lightweight, slimming, the cost degradation of PDP self.In addition, if during with the front panel that constitutes by transparent formed article in the setting of PDP front face side relatively, because can make PDP and PDP with there not being the low air layer of refractive index between the filter, therefore can solve the problems such as increase, double reflection of the visible reflectance that boundary reflection causes, can further improve the visibility of PDP.

Therefore, have the display of optical filter of the present invention, not only easy ground connection, and anti-reflection effect, excellent antistatic property, the dangerous electromagnetic wave of radiation is hardly watched, difficult band dust etc. easily, can be described as safe display.

Embodiment

Embodiment and comparative example below are shown, specifically describe the present invention, but the present invention is not limited to following embodiment.

[embodiment 1]

The manufacturing of the display optical filter of＜belt electrode portion 〉

(1) formation of net metal conductive layer

The thickness that has easy knitting layer (polyester-polyurethane, thickness 20nm) on the surface is that (wide: 600mm, long: on easy knitting layer 100m), the poly-vinyl alcohol solution with 20% is printed as point-like to the strip polyethylene terephthalate thin film of 100 μ m.The size of each point is that 1 limit is the square of 234 μ m, is spaced apart 20 μ m between the point, and it is the square lattice shape that point is arranged.Print thickness is the dry about 5 μ m in back.

Vacuum evaporation copper and to make average thickness be 4 μ m thereon.Then, be impregnated in the water of normal temperature, by using the sponge wiping, a part is removed in dissolving, and after then washing, drying forms netted conductive layer (with reference to Fig. 1 (1)) on all surfaces of polyethylene film.

The conductive layer of this film surface is exactly corresponding to the conductive layer of the square lattice shape of a minus pattern, and live width is 20 μ m, and aperture opening ratio is 77%.In addition, the average thickness of conductive layer (copper layer) is 4 μ m.

(2) formation of hard conating

With following prescription:

Dipentaerythritol acrylate (DPHA) 80 mass parts

ITO (average grain diameter 150nm) 20 mass parts

Methyl ethyl ketone 100 mass parts

Toluene 100 mass parts

Irgacure 184 (Ciba specialty chemicals system) 4 mass parts

Mix the coating fluid that obtains, utilize metering bar coater to be coated on all surfaces of above-mentioned net metal conductive layer (with reference to Fig. 1 (2)),, make its curing by ultraviolet irradiation, thus, forming thickness on the net metal conductive layer is the hard conating (refractive index is 1.52) of 5 μ m.

(3) formation of low-index layer

With following prescription:

Opster JN-7212 (Japanese synthetic rubber (strain) system) 100 mass parts

Methyl ethyl ketone 117 mass parts

Methyl iso-butyl ketone (MIBK) 117 mass parts

Mix the coating fluid that obtains, utilize metering bar coater to be coated on the above-mentioned hard conating, drying is 5 minutes in 80 ℃ baking oven, then by ultraviolet irradiation, makes its curing, and thus, forming thickness on the hard conating is the low-index layer (refractive index is 1.42) of 90nm.

(4) formation of near infrared ray absorption layer (having the tonal correction function)

With following prescription:

Polymethyl methacrylate 30 mass parts

TAP-2 (hillside plot chemical industry (strain) system) 0.4 mass parts

Plast Red 8380 (this chemical industry (strain) system is arranged) 0.1 mass parts

CIR-1085 (Japan Carlit Co., Ltd. system) 1.3 mass parts

IR-10A ((strain) Japanese catalyst system) 0.6 mass parts

Methyl ethyl ketone 152 mass parts

Methyl iso-butyl ketone (MIBK) 18 mass parts

Mix the coating fluid that obtains, utilize metering bar coater to be coated on all surfaces at the back side of above-mentioned polyethylene film, drying is 5 minutes in 80 ℃ baking oven, and thus, forming thickness on polyethylene film is the near infrared ray absorption layer (having the tonal correction function) of 5 μ m.

(5) formation of translucent adhesive layer

With following prescription

SK Dyne 1811L (combining chemistry (strain) system of grinding) 100 mass parts

Curing agent L-45 (combining chemistry (strain) system of grinding) 0.45 mass parts

Toluene 15 mass parts

Ethyl acetate 4 mass parts

Mix the coating fluid that obtains, utilize metering bar coater to be coated on the above-mentioned near infrared ray absorption layer, dry 5 fens clock times in 80 ℃ baking oven, thus, forming thickness near infrared ray absorption layer is the translucent adhesive layer of 25 μ m.

Then, the edge part around the low-index layer of the laminated body that obtains uses CO ₂Laser machine, power output 30W, it is 0.5mm that optically focused becomes the diameter in the focal position, with the 100mm/ translational speed irradiating laser of second.Form around low-index layer whole that conductive layer exposes zone 23 ' (width is 5mm) and edge part low-index layer 27 ' (the width 0.5mm) in its outside across this zone.

The display optical filter that is had electrode part thus around.

[embodiment 2]

Except being provided with between hard conating and the low-index layer the high refractive index layer as described below, with embodiment 1 identical operations, the display optical filter that has obtained having electrode part.

(6) formation of high refractive index layer

With following prescription:

Dipentaerythritol acrylate (DPHA) 6 mass parts

ZnO (average grain diameter 4nm) 4 mass parts

Methyl ethyl ketone 100 mass parts

Toluene 100 mass parts

Irgacure 184 (Ciba specialty chemicals system) 1 mass parts

Mix the coating fluid that obtains, utilize metering bar coater to be coated on the above-mentioned hard conating, by ultraviolet irradiation, make its curing, thus, forming thickness on hard conating is the high refractive index layer (refractive index is 1.70) of 90nm.

[embodiment 3]

Except in embodiment 1, carry out as described below similarly having obtained having the display optical filter of electrode part beyond the formation of (1) netted conductive layer in the two edges of Width portion.

Has knitting layer (polyester-polyurethane on the surface, thickness 20nm) thickness is that the strip polyethylene terephthalate thin film of 100 μ m is (wide: 600mm, long: on all surfaces of knitting layer 100m), pasting and paying thickness is the Copper Foil of 10 μ m, utilize photoetching process to form dot pattern this Copper Foil, etching Copper Foil exposed portions serve, the Copper Foil (live width 10 μ m, spacing 250 μ m) of formation grid pattern.

The live width of the conductive layer of this film surface is 10 μ m, and aperture opening ratio is 90%, and in addition, the average thickness of conductive layer (copper layer) is 10 μ m.。

[embodiment 4]

Except at as described below the setting the high refractive index layer between hard conating and the low-index layer, operation similarly to Example 3, the display optical filter that has obtained having electrode part.

(6) formation of high refractive index layer

With following prescription:

Dipentaerythritol acrylate (DPHA) 6 mass parts

ZnO (average grain diameter 4nm) 4 mass parts

Methyl ethyl ketone 100 mass parts

Toluene 100 mass parts

Irgacure 184 (Ciba specialty chemicals system) 1 mass parts

Mix the coating fluid that obtains, utilize metering bar coater to be coated on the above-mentioned hard conating, by ultraviolet irradiation, make its curing, thus, forming thickness on hard conating is the high refractive index layer (refractive index is 1.70) of 90nm.

[embodiment 5]

Be provided with except replacing hard conating the antiglare layer as described below, carry out operation similarly to Example 3, obtained having the display optical filter of electrode part.

(2) formation of antiglare layer

With following prescription:

Dipentaerythritol acrylate (DPHA) 80 mass parts

ITO (average grain diameter 150nm) 20 mass parts

The acrylate pearl (combine and grind chemistry for average grain diameter 3.5 μ m, trade name by MX series

(strain) system) 10 mass parts

Methyl ethyl ketone 100 mass parts

Toluene 100 mass parts

Irgacure 184 (Ciba specialty chemicals system) 4 mass parts

Mix the coating fluid that obtains, utilize metering bar coater to be coated on all surfaces of above-mentioned netted metal conducting layer (with reference to Fig. 1 (2)),, make its curing by ultraviolet irradiation, thus, forming thickness on the net metal conductive layer is the antiglare layer (refractive index is 1.52) of 13 μ m.

[embodiment 6]

Except carrying out laser radiation as described below, carry out same operation with embodiment 1, obtained having the display optical filter of electrode part.

Edge part around the low-index layer of the laminated body that obtains uses CO ₂Laser machine, power output 30W, it is 0.5mm that optically focused becomes the diameter in the focal position, with the 100mm/ translational speed irradiating laser of second.The mode that covers the edge part of low-index layer with the laser focusing zone is carried out this laser radiation, forms conductive layers and expose zone 23 ' (width is 5mm) around low-index layer whole.

[evaluation of optical filter]

(1) conductivity

Go up at the electrode (2 relative electrode part) of optical filter and to connect ohmer (trade name: Milliohm high tester, put motor (strain) system day), measure resistance value.

The above results is shown in Table 1

Table 1

	Resistance value
		Embodiment
1	150mΩ
		Embodiment
2	150mΩ
		Embodiment
3	130mΩ
		Embodiment
4	130mΩ
		Embodiment 5	130mΩ
Embodiment
	6	150mΩ

In addition, even the PDP filter that obtains among the embodiment 1～6 is actual attaching on the PDP, at aspects such as the transparency, electromagnetic wave shielding performances, also no less than in the past product, in addition, the subsides of PDP are paid also and can be carried out extremely easily, the productivity that also helps PDP to make.

The possibility of utilizing on the industry

The optical filter of the application of the invention can provide the display, particularly PDP of a kind of antireflection, blocking near infrared ray, various function excellences such as shielding electromagnetic wave etc.

Claims (29)

1. a display optical filter is characterized in that, the side surface that described display optical filter is included in a slice transparent membrane is provided with the structure of metal conducting layer,

Surface at the metal conducting layer of transparent membrane is provided with first functional layer, and exposes metal conducting layer at the circumference of transparent membrane or near at least a portion zone the circumference.

2. display optical filter according to claim 1, the surface that the metal conducting layer side is not set at transparent membrane is provided with second functional layer.

3. display optical filter according to claim 1 and 2, transparent membrane is a rectangle, metal conducting layer is arranged on all surfaces of transparent membrane, be provided with first functional layer on the surface except the edge part of the both sides at least of metal conducting layer, banded metal conducting layer exposes in its two edges portion.

4. display optical filter according to claim 1 and 2, transparent membrane is a rectangle, metal conducting layer is arranged on all surfaces of transparent membrane, be provided with the first banded functional layer on the edge part surface of the both sides at least of metal conducting layer, expose in abutting connection with ground the inboard that does not have first functional layer of the metal conducting layer of band shape of first functional layer and this band shape, and be provided with first functional layer at the middle body that metal conducting layer surrounded of the band shape of exposing.

5. according to each described display optical filter in the claim 1～4, the metal conducting layer that exposes is continuous belt-like zone or comprises midway by the belt-like zone of the interruption of the island conductive layer of first functional layer blocking.

6. according to each described display optical filter in the claim 3～5, the banded edge part of metal conducting layer on 4 limits of first functional layer forms with the frame shape.

7. according to each described display optical filter in the claim 3～6, banded metal conducting layer is the belt-like zone that comprises midway the interruption of the island conductive layer that is interdicted by functional layer, and the shape of island conductive layer can be the same or different.

8. according to each described display optical filter in the claim 1～7, metal conducting layer is the net metal conductive layer.

9. according to each described display optical filter in the claim 1～8, first functional layer is a hard conating.

10. according to each described display optical filter in the claim 1～8, first functional layer comprises hard conating and the low-index layer lower than hard conating refractive index, and hard conating and metal conducting layer join.

11. according to each described display optical filter in the claim 1～8, first functional layer comprises hard conating, than high high refractive index layer of hard conating refractive index and the low-index layer lower than hard conating refractive index, hard conating and metal conducting layer join.

12. according to each described display optical filter in the claim 1～8, first functional layer is an antiglare layer.

13. according to each described display optical filter in the claim 1～8, first functional layer comprises antiglare layer and the low-index layer lower than antiglare layer refractive index, antiglare layer and metal conducting layer join.

14. according to each described display optical filter in the claim 2～13, second functional layer is the one deck at least that is selected near infrared ray absorption layer, neon light blocking layer and the translucent adhesive layer.

15. according to each described display optical filter in the claim 2～14, second functional layer comprises the translucent adhesive layer with near-infrared absorbing function and neon light blocking function.

16. according to each described display optical filter in the claim 2～14, second functional layer comprises near infrared ray absorption layer and the translucent adhesive layer with neon light blocking function, and is set in sequence on the transparent membrane with this.

17. according to each described display optical filter in the claim 2～14, second functional layer comprises near infrared ray absorption layer and the translucent adhesive layer with neon light blocking function, and is set in sequence on the transparent membrane with this.

18. according to each described display optical filter in the claim 2～14, second functional layer comprises near infrared ray absorption layer, neon light blocking layer and translucent adhesive layer, and is set in sequence on the transparent membrane with this.

19., be the filter that plasma display device is used according to each described display optical filter in the claim 1～18.

20. a display optical filter, each described display optical filter pastes and pays on glass substrate in the claim 1～18.

21. one kind has and is projected into the manufacture method of conductive layer on every side as the display optical filter of electrode part, it comprises following operation: for by a slice transparent membrane, be formed on the metal conducting layer on its all surfaces and be formed on the circumference of this functional layer of the laminated body that first functional layer on the metal conducting layer all surfaces constitutes or near at least a portion area illumination laser the circumference, remove first functional layer of illuminated portion, expose metal conducting layer.

22. one kind has and is projected into the manufacture method of conductive layer on every side as the display optical filter of electrode part, it comprises following operation: along by the transparent membrane of a slice rectangle, the circumference or near the irradiating laser it of both sides at least of first functional layer that be formed on the metal conducting layer on its all surfaces and be formed on this rectangle of the laminated body that first functional layer on the metal conducting layer all surfaces of rectangle constitutes, remove first functional layer of illuminated portion, at the edge part of the both sides at least of rectangle function layer or expose the belt-like zone of metal conducting layer near it.

23. one kind has and is projected into the manufacture method of conductive layer on every side as the display optical filter of electrode part, it comprises following operation: along by the transparent membrane of a slice rectangle, the edge part or near the irradiating laser it on whole 4 limits of first functional layer that be formed on the metal conducting layer on its all surfaces and be formed on this rectangle of the laminated body that first functional layer on the metal conducting layer all surfaces of rectangle constitutes, remove first functional layer of illuminated portion, in the edge part of rectangle function layer or near the frame shape zone of exposing conductive layer it.

24., be provided with second functional layer in the metal conducting layer side that is not provided with of transparent membrane according to each described display optical filter in the claim 21～23.

25. according to each described manufacture method in the claim 21～24, continuously or intermittently carries out laser radiation.

26. a display optical filter, it is obtained by each described manufacture method in the claim 21～25.

27. a display optical filter is paid on glass substrate by the display optical filter subsides that each described preparation method in the claim 21～25 obtains.

28. a display is characterized in that, it possesses each described display optical filter in the claim 1～20,26 and 27.

29. a plasma display device is characterized in that, it possesses each described display optical filter in the claim 1～20,26 and 27.

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