JPH0821320B2 - METAL FILM TRANSFER SHEET, MANUFACTURING METHOD THEREOF, ANODE FORMING SHEET, AND ANODE MANUFACTURING METHOD - Google Patents

Description

The present invention relates to a cathode ray tube, and more particularly to a metal film transfer sheet for efficiently forming an anode having a metal back layer, a method for producing the same, and an anode forming sheet. And an anode manufacturing method.

2. Description of the Related Art In the conventional cathode ray tube anode process for color television, the glass substrate that constitutes the phosphor screen is subjected to an appropriate surface treatment.
A PVA-ammonium dichromate photosensitive solution was used for pattern exposure and development, a black substance such as graphite was flowed, and lifted off to form a black matrix layer. For the phosphor pattern, the process of applying, drying, exposing, developing and drying a slurry in which a phosphor pigment is dispersed in PVA-ammonium dichromate photosensitive solution is repeated three times R (red), G
A complicated process of forming each layer of (green) and B (blue) was used.

After further forming the phosphor layer, an organic polymer film containing nitrocellulose etc. is formed to obtain a mirror-finished metal film, a so-called metal back layer, and then a desired metal back layer is formed by a vacuum deposition method or a sputtering method. Was.
After that, the organic substance contained therein was baked and decomposed to form a phosphor screen.

Also, in the shadow mask color tube, 15 to 20% of the electron beam normally passes through the shadow mask, causing the phosphor to emit light, and the remaining 80 to 85% of the electron beam collides with the shadow mask and raises the temperature of the shadow mask. As a result, the shadow mask thermally expands and causes thermal deformation in a convex shape in the panel face direction (this phenomenon is called doming). When this phenomenon occurs, the positional relationship between the mask hole and the face panel is misaligned, and in extreme cases, color misregistration occurs.

[Problems to be Solved by the Invention] The above-described anode forming process has a very long and complicated process, and a large vacuum vapor deposition apparatus or a sputtering apparatus is required, which causes a cost increase.
In addition, swelling occurs in a part or the whole of the metal back layer in the firing process. It is considered that this is because the gas generated by the decomposition of the organic substances is hindered by the metal back layer and does not smoothly escape to the outside, so that the metal back layer swells due to the gas pressure.

Further, JP-A-62-185833 proposes a method of forming a metal back layer by transferring it onto a face plate of a cathode ray tube by using a transfer material having a metal back layer on a base film having peeling property. Was done. In the method described therein, the simplification of the process is improved as compared with the above-mentioned conventional technique, but the swelling of the metal back layer due to the above-mentioned cause is not yet solved.

In the swollen portion of the metal back layer caused by such a cause, the reflection efficiency of the phosphor is lowered, and it appears as a local defect in the color picture tube, which is a major cause of the yield reduction.

Also, as a doming countermeasure, a carbon blackening film is formed on the back surface of the metal back layer (usually an aluminum film) to easily absorb the radiant heat from the mask at the time of image output and reduce the heat reflection from the metal back layer. It is possible to improve the doming level as well as the black floating level by suppressing the temperature rise in the metal back layer. However, when the swelling occurs in the metal back layer, the blackened film (radiation heat absorbing substance) coating state The non-uniformity causes a large difference in the electron beam transmission efficiency, which causes uneven brightness.

In addition, in the formation of the above-mentioned blackened film, it is general that an acrylic emulsion is applied on the metal back layer by spraying or the like to form a barrier layer, and a graphite slurry is applied thereon by spraying to form a graphite film. However, there is a problem that it is difficult to form a uniform film thickness or control the film thickness because it is a work by spraying, and dust is easily mixed because it is an operation in air. there were. The thickness of this blackening layer needs to be the minimum required value and uniform in order to smoothly discharge the organic substances in the phosphor screen during firing, but the conventional spray method meets this requirement. It is clear that you cannot do it.

Means for Solving the Problems Means for solving the above problems are as follows.

A black resin layer is formed on a substrate sheet having a good releasability with a resin material having a moderately rough surface and good adhesion to a metal film as a metal back layer, and transferred onto this black resin layer. A metal film to be formed is formed, and a metal film transfer sheet is formed. The black resin layer and the metal film on the metal film transfer sheet are transferred onto the phosphor layer.

Alternatively, a phosphor layer is further formed on the metal film on the above-mentioned metal film transfer sheet, and these black resin layer, metal film, and phosphor layer are collectively transferred to the face plate.

Also, after transferring a metal film transfer sheet having a black metal film having fine pores and a metal film having fine pores on a releasable support onto a phosphor layer formed on a glass substrate, the organic substance contained therein is baked. To form a phosphor screen. Alternatively, a phosphor layer and a black matrix layer are sequentially formed on a metal transfer sheet on which a black metal film having fine holes and a metal film having fine holes are formed on a releasable support, and then the metal is formed on the glass substrate. After the film and the following are collectively transferred, the organic material is baked to form a phosphor screen.

The operation of the above means is as follows.

The surface of the black resin layer is appropriately rough as described above, that is, the surface of the black resin layer has appropriate irregularities. When a metal film is formed on the surface by vapor deposition or the like, the film thickness of the metal film is considerably thinner in the valley (concave) than in the top (convex).
That is, a large number of thin portions having a small thickness are formed in a dot shape on the metal film. Then, the black resin layer and the metal film of the metal film transfer sheet are pressed against the phosphor layer on the glass substrate such as the face plate through the adhesive layer, and then the substrate sheet is peeled off. Peeling occurs between the resin layer and the black resin layer and the metal film are transferred to the glass substrate side.

The transferred metal film has a large number of thin portions scattered as described above. This thin portion is the gas pressure of the pyrolysis gas generated by the firing decomposition of the organic matter in the firing step,
It easily breaks into pinholes and allows gas to escape. as a result,
Swelling of the metal back layer or bursting of the swell is completely prevented. Moreover, the traces of rupture of the thin portion are pinhole-like, and the function as the metal back layer is not impaired at all.

Further, a black resin layer is formed on the transferred metal film, and the black resin layer absorbs radiant heat from the shadow mask, and heat reflection from the metal back layer is reduced, so that the shadow mask The temperature rise can be suppressed, the occurrence of doming development can be prevented, and the image quality can be improved.

Further, the secondary electrons once reflected on the metal back layer are also absorbed by the black layer, and a clear image can be obtained.

The black resin layer having a required thickness can be easily formed without unevenness in thickness by uniformly coating and forming it on the metal back layer.

Further, even if the releasable support, using a metal film transfer sheet on which a black metal film sequentially having fine pores and a metal film having a normal metallic luster having fine pores is formed,
That is, during firing, swelling does not occur due to the effect of the fine pores provided in advance, and the doming phenomenon is suppressed by the black metal film.

In addition, the phosphor screen forming sheet having the phosphor pattern formed on the metal film transfer sheet is collectively transferred to the face plate to form the anode of the cathode ray tube, thereby significantly reducing the number of steps.

Further, since the above-mentioned metal film, black metal film and the like can be formed by vapor deposition, it is possible to form a film having an extremely excellent film thickness value or film thickness uniformity.

Embodiments Embodiments of the present invention will be described below with reference to the drawings.

First Embodiment The outline of this embodiment will be described first, and then the details will be described.

FIG. 1 (a) shows a cross section of the metal film transfer sheet 5 of the present invention. In FIG. 1 (a), 4 is a support having excellent mechanical strength and solvent resistance, and various resin films such as polyethylene terephthalate, polyimide, polyamide are used, and the thickness of the film is 3 to. 100μ
The range of m, preferably 5 to 50 μm is suitable. 3 is
The release layer is a thin layer made of a material having excellent release properties such as silicone, fluorine, acrylic, and wax.

Reference numeral 2 denotes a black resin layer formed on the support 4 with the release layer 3 interposed therebetween. The black resin layer 2 contains graphite and carbon and has a roughened surface. As the binder of the black resin layer 2, an acrylic resin having good thermal decomposability is suitable. 1
Is a metal film (hereinafter also referred to as a metal back layer) formed on the black resin layer 2 by a method such as vacuum deposition and sputtering.

FIG. 1 (b) shows a release layer after the metal film transfer sheet 5 shown in FIG. 1 (a) is pressed against the glass substrate 9 having the black matrix layer 8 and the phosphor layer 7 via the adhesive layer 6. Three
It shows a state in which the black resin layer 2 and the metal film 1 on the metal film transfer sheet 5 are transferred onto the phosphor layer 7 by peeling off the substrate sheet 4 having.

The black resin layer 2 has good adhesiveness to the metal film 1 and extremely weak adhesiveness to the release layer 3, so that the black resin layer 2 and the metal film 1 are , Release layer 3
It is further peeled off and transferred onto the phosphor layer 7. Thus, the metal film 1 having the target black resin layer 2 is formed on the phosphor layer 7.

 The present embodiment will be described in more detail below.

The thickness of the sheet-shaped support 4 is usually about 3 to 100 μm, but is preferably in the range of 5 to 50 μm, and in the present embodiment, it is 25 μm.

The black resin layer 2 was prepared by adding 20 parts by weight of graphite having an average particle size of 1 μm, 5 parts by weight of carbon black, and 1000 parts by weight of toluene as a solvent to 100 parts by weight of the acrylic resin as a base material, and using a homomixer. The coating material obtained by kneading for 20 minutes was applied on the support 4 with a wire bar to a thickness of 2 μm. The obtained coating layer becomes a black rough surface layer having appropriate irregularities formed on the surface because of the graphite plate crystals and fine carbon black. The surface smoothness was Beck smoothness of 200 seconds.

Next, the aluminum metal film 1 was formed on the black resin layer 2 by vacuum vapor deposition. As shown in FIG. 1A, the metal film 1 is formed so that the tops (projections) of the irregularities on the surface of the black resin layer 2 are thickest and the valleys (recesses) are thinnest. In this example, the film thickness at the top was about 1000 angstroms.
At that time, the thickness at the valley was about 200 to 300 angstroms. As described above, the thickness of the metal film 1 is affected by the surface roughness of the black resin layer 2, and a large number of thin portions are formed at the recessed portions.

Then, a vinyl acetate adhesive layer 6 is applied on the phosphor layer 7, and the black resin layer 2 and the metal film 1 formed on the release layer 3 are pressure-bonded as shown in FIG. 1 (b). After transfer, an anode 10 having a black resin layer 2 and a metal film 1 was further formed on the glass substrate 9.

For comparison with the present example, an anode (hereinafter, referred to as a comparative example) to which an aluminum vapor-deposited film containing no graphite and carbon black and thus having a smooth surface was formed was transferred, It was similarly formed on a glass substrate.

In the subsequent firing step, it was confirmed by microscopic observation that a temperature rise of about 250 ° C. formed fine holes of 5 to 10 μm in the metal film of the anode of this example.
On the other hand, in the metal film of the comparative example, such fine pores were not formed, and a large number of small bulges were observed. After further raising the temperature and baking at 450 ° C. for 1 hour, in the case of the present embodiment, the organic substances contained in the adhesive layer 6 etc. are completely burned and thermally decomposed, and the metal film 1 A certain aluminum film has no swelling at all and maintains an extremely good surface condition, and the binder in the black resin layer is completely pyrolyzed to form a black layer such as graphite, and a good amode is obtained. It was

On the other hand, in the anode of the comparative example, large swelling was generated over the entire surface of the aluminum film, and some of the swelling was ruptured.

As described above, in this embodiment, a large number of the thin-walled portions scattered in the metal film are broken by the gas pressure generated from the organic substance (eg, adhesive) on the lower surface of the metal film during the firing process, and a large number of pinholes are formed. The fine pores are formed, which function as gas vent holes to completely prevent swelling of the metal film. On the other hand, in the case of the comparative example, since such fine pores are not formed in the metal film, the gas under the metal film does not escape, resulting in damage such as swelling and rupture of the swelling.

The metal film obtained in this example has sufficient characteristics as a metal back layer of a cathode ray tube, and the effect of a black layer such as graphite suppresses doming.
Secondary electrons were also absorbed in the black layer, and an extremely clear image was obtained.

In this example, after forming a phosphor screen on a glass substrate by a conventional technique, that is, a well-known technique, an organic film is formed for smoothing the surface of the phosphor layer, and the whole glass substrate is introduced into a vapor deposition apparatus to form an aluminum film. Compared with the conventional process in which the black layer is formed by performing vapor deposition and then spraying a black resin layer on the aluminum film by spraying or the like, the number of steps and cost can be significantly reduced.

The surface roughness of the black resin layer of this example is determined by the graphite content, and is preferably 2 to 50 Wt%, more preferably 5 to 50 Wt%.
With a composition with a graphite content of 30 Wt%, with Beck smoothness
If it is 400 seconds or less, 5 to 30
It is possible to obtain good micropores of about μm.

Also, a good metal back layer can be obtained even when the metal film is nickel.

The support 4 and the black resin layer 2 were formed without forming the release layer 3.
It is also possible to separate the metal film from the metal film by causing cohesive failure in the black resin layer 2.

Alternatively, when the releasability between the support 4 and the black resin layer 2 is extremely good, the metal film thickness and the black resin layer are collectively transferred without forming the release layer 3.

(Second Embodiment) A second embodiment will be described with reference to FIG.

In the second embodiment, as shown in FIG. 2A, a phosphor layer 7 and a black matrix layer 8 are further formed on the metal film transfer sheet 4 having the structure shown in the first embodiment to form an anode. A forming sheet 11 is formed, which is pressed against the glass substrate 9 via the adhesive layer 6 as shown in FIG.
When peeled off, the anode forming sheet is separated between the release layer 3 and the black resin layer 2 to form the anode 10 having the black resin layer on the glass substrate 9.

 The second embodiment will be described in detail below.

A silicon film was applied to a thickness of 1 μm on a support 4 of a PET film having a thickness of 120 μm to form a release layer 3. On the release layer 3, the black resin layer 2 having the composition shown in Table 1 is applied.
It was applied to a thickness of μm.

The smoothness of the black resin layer was Beck smoothness of 100 seconds.

An aluminum film having a thickness of 1000 angstrom was vapor-deposited on the black resin layer 2 to form the metal film 1. Similar to the first embodiment, the thickest part of the aluminum film is formed on the tops (projections) of the irregularities on the surface of the black resin layer 2, and the thin parts are formed on the valleys (recesses).

Further, the composition shown in Table 2 was passed through a three-roll ceramic roll three times to knead the mixture to prepare a green phosphor ink.

Similarly, a red phosphor ink and a blue phosphor ink were prepared.

The support 4 having the metal film 1 was fixed on a glass substrate, and a green phosphor pattern was printed on the metal film 1 by the gravure offset method. After that, red phosphor,
A blue phosphor was printed at a predetermined position, and phosphor patterns of R, G, and B colors were formed on the metal film 1. The printed pattern satisfied the stripe uniformity, accuracy, and optical characteristics.

Further, using the black matrix material having the composition shown in Table 3, the black matrix layer 8 was continuously printed on the metal film transfer sheet 5 by the same gravure offset method as the phosphor pattern 7.

As described above, an acrylic adhesive (isodecylmethacrylate) as an adhesive layer 6 of 3 micron was formed on the uppermost surface of the anode forming sheet 11 obtained by printing the phosphor layer and the black matrix layer on the metal film. Was evenly applied.

The anode forming sheet 11 is pressed against the glass substrate 9 serving as a face plate with the adhesive layer 6 interposed therebetween.
The support 4 coated with the release layer 3 of the anode forming sheet is peeled off, and the black matrix layer 8 is formed on the glass substrate 9.
The phosphor layer 7, the metal back layer 1 and the black resin layer 2 were transferred and formed. Then, it was fired under the conditions of temperature rising conditions of 10 ° C./min and holding at 450 ° C. for 1 hour. As a result, a good black matrix layer 8, a phosphor layer 7, and a metal film 1 and a black layer 2 as a metal back layer in which fine holes were formed were obtained, and a good anode was formed.

This anode fully satisfied the characteristics as a color cathode ray tube anode.

In this embodiment, the acrylic pressure-sensitive adhesive may be applied on either the glass substrate 9 serving as the face plate or the black matrix layer 8 as a matter of course.

(Third Embodiment) FIG. 3 (b) is a sectional view of a metal film transfer sheet 16 of a third embodiment of the present invention.

First, in FIG. 3 (a), 4 is a support having excellent mechanical strength and solvent resistance, and various resin films such as polyethylene terephthalate (PET), polyimide and polyamide are used. Reference numeral 3 denotes a release layer formed in close contact with the support 4, and as a material thereof, a resin having a good release property such as silicon, Teflon, acrylic, or wax is suitable.

Reference numeral 12 is a black metal film, and by performing vapor deposition in a low vacuum, a black metal film having no so-called metallic luster can be obtained. This black metal film is extremely effective as a countermeasure against doming and a countermeasure against secondary electrons. Reference numeral 13 is an ordinary metal film having a metallic luster, and is for reflecting the light emitted from the phosphor by the mirror effect of the metal film to improve the brightness.

Next, as shown in FIG. 3B, fine light 15 is formed on the two layers of metal films 12 and 13 of the metal film transfer sheet of FIG. It is desirable that the size of the fine holes 15 is as small as possible in order to prevent a decrease in luminance, and if fine holes having a size of 50 μm or less, preferably 5 to 30 μm are uniformly dispersed and formed. In the final step, there is no swelling or the like on the surface of the metal film during the firing at 450 ° C, and it can be used as a good metal back layer.

3C shows that the metal film transfer sheet 16 of FIG. 3B is pressed against the glass substrate 9 having the black matrix layer 8 and the phosphor layer 7 via the adhesive layer 6, and then the substrate sheet 4 is peeled off. In this way, a state is shown in which the black metal film 12 having the fine holes 15 and the metal film 13 having the fine holes on the metal film transfer sheet 16 are transferred onto the phosphor layer. Due to the effect of the release layer 3 formed on the substrate sheet, the two-layer metal film 1
2 and 13 are released from the support 4 and transferred onto the phosphor layer 7 to form a desired metal back layer on the phosphor layer 7.

 The present embodiment will be described in more detail below.

The thickness of the substrate sheet 4 is usually about 3 to 100 μm, but a range of 5 to 50 μm is suitable, and in the present embodiment, it is 12 μm. The release layer 3 is made of silicon resin of 2 μm.
Formed to a thickness of. A black metal film 1 having a thickness of 800 Å is formed on the floating layer 3 by aluminum vapor deposition in a vacuum atmosphere having a relatively low degree of vacuum, that is, about 10 ⁻² to 10 ⁻³ Torr.
2 and further higher vacuum than the above atmosphere, namely 1
Aluminum was vapor-deposited in a high vacuum atmosphere of 0 ^-5 to 10 ^-6 Torr to form a white metal film 13 having a metallic luster of 1000 Å.

Next, a method for forming the fine holes 15 in the metal film transfer sheet will be described.

As shown in FIG. 4, the method of forming the fine holes is such that a cylindrical electrode 19 having fine protrusions is pressed against the metal film transfer sheet 14 shown in FIG. Is used to form fine holes on the metal film surface.

Next, in order to clarify the influence of the aperture ratio and size of the fine holes, the metal film in which the number of fine holes formed in the transfer sheet is changed by changing the fine hole forming process by electric discharge from 0 times to 6 times. The transfer sheet 16 was created. In order to quantitatively grasp the state of the formed fine holes, the aperture ratio and size of the fine holes were measured using an image analyzer.

As shown in FIG. 3 (c), six kinds of metal film transfer sheets having fine pores having different aperture ratios and sizes are used to form a phosphor layer formed on a glass substrate 9 by a conventionally known technique. A black metal film 12 having fine pores formed on the phosphor layer 7 and a metal film having a metallic luster having fine pores, which are pressure-contacted onto the phosphor layer 7 through an acrylic adhesive (indecyl methacrylate) 6
After transferring 13, the support 4 was peeled off, and the anode 10a having a metal back layer was formed on the glass substrate 9.

Further, the anode was fired at 450 ° C. to decompose and fire organic substances to form an anode for a color cathode ray tube. At this time, as shown in Table 4, a large difference occurred in the surface state of the metal back layer after firing, depending on the state of formation of fine holes in the aluminum vapor deposition film.

The reason for this is that if the pre-formed micropores function as gas vents during firing at 450 ° C. and can completely prevent the swelling of the metal film thickness, a good metal back layer can be formed, When the aperture ratio of the micropores is not sufficient, numerous bulges appear on the metal film surface.

As is clear from Table 4, when no fine holes were formed in the aluminum vapor deposition film, swelling occurred in the entire area of the aluminum vapor deposition film. In the case of aluminum vapor deposition film that has micropores formed by discharge,
Slight swelling with one discharge However, a good metal back layer was formed when the number of discharges was 2 or more. A more stable metal back layer was obtained when the number of times was 3 or more. The size of the micropores is 15μ in diameter
A size of about m is an average value, and if it becomes a hole of 50 μm or more, it leads to a decrease in brightness.

The firing conditions are a temperature rising rate of 10 ° C./min and holding at 450 ° C. for 1 hour.

From this result, it can be seen that if the opening ratio of the fine holes is 5% or more, a good metal back layer is formed after firing.

(Fourth Embodiment) The metal film transfer sheet 14 of FIG. 3 (a) is sandwiched between two sheets of sandpaper (# 1000), and the pressure roller is applied with a linear pressure of 4 Kg / cm.
And the metal film transfer sheet sandwiched between the two sandpapers was passed between the rollers five times to open the glass plate
A metal film transfer sheet having 10% and fine pores having an average pore diameter of 10 to 20 μm was obtained. Further, in the same manner as in the third embodiment, the metal film transfer sheet was pressure-transferred onto the phosphor layer 8 formed on the glass substrate 9 and fired at 450 ° C. for 1 hour. The back layer was obtained.

(Fifth Embodiment) The metal film transfer sheet 14 of FIG. 3 (a) is blown at a medium speed with a # 1500-pass carborundum (average flow diameter 1 μm) using a sandblast method (manufactured by COMCO) to open the sheet. Rate 8
%, Fine pores having an average pore diameter of 5 to 8 μm were formed.

Similarly to the fourth embodiment, pressure transfer is performed on the phosphor layer surface and 450 ° C.
After firing for 1 hour, a good metal back layer with strong adhesion was obtained.

(Sixth Embodiment) An aluminum transfer sheet having an aperture ratio of 10% was obtained by electrical discharge machining applied to the metal film transfer sheet 14 of FIG. 3 (a).

Further, the composition shown in Table 5 was passed through a three-roll ceramic roll three times to be kneaded to prepare a phosphor ink.

Similarly, a red phosphor ink and a blue phosphor ink were prepared.

A metal film transfer sheet having the fine holes was fixed on a glass substrate, and a green phosphor pattern was printed by a gravure offset method. Thereafter, a red phosphor and a blue phosphor were sequentially printed at predetermined positions to obtain phosphor patterns of R, G and B three colors. The printed pattern satisfied the stripe uniformity, accuracy, and optical characteristics.

Further, a black matrix layer having the composition shown in Table 6 was formed and continuously printed on the aluminum transfer sheet by the same gravure offset method as the phosphor pattern.

After printing the phosphor layer and the black matrix layer on the metal film transfer sheet 16, the acrylic adhesive (isodecyl methacrylate) was applied onto the surface of the glass substrate with a uniform thickness of 3 μm by pressure bonding, Furthermore, the substrate sheet of the metal film transfer sheet is peeled off to form a black matrix layer and a phosphor layer on the glass substrate and a black metal film 12 having fine holes.
Then, a metal film 13 having fine pores was formed to obtain an anode. Then, when it was fired under the conditions of a temperature rising condition of 10 ° C./min and a holding temperature of 450 ° C. for 1 hour, a good anode was formed. This anode was obtained with sufficient characteristics as a color cathode ray tube anode.

EFFECTS OF THE INVENTION As is clear from the above description, according to the present invention, a metal film transfer sheet, in which a metal film is formed on a black resin layer, is transferred to a phosphor layer on a cathode ray tube face plate, and after the substrate sheet is peeled off. Since the anode is formed by firing, large equipment is not required, and the number of man-hours can be significantly reduced, and the cost can be significantly reduced.

Further, the black resin layer formed on the metal film suppresses the doming phenomenon and contributes to secondary electron countermeasures, so that the image quality can be significantly improved.

Further, by forming a phosphor layer and a black matrix layer on a metal film transfer sheet having a metal film formed on a black resin layer and transferring them collectively onto a cathode ray tube face plate, the substrate sheet is peeled and then baked. In addition, the anode of the color cathode ray tube is easily formed.

Further, the same effect as described above can be obtained by stacking and using the black metal film having fine holes and the metal film having fine holes.

Thus, the present invention exerts a great effect when applied to phosphor products such as cathode ray tubes and plasma displays.

[Brief description of drawings]

1A is a sectional view of a metal film transfer sheet according to an embodiment of the present invention, and FIG. 1B is a process drawing of an anode using the metal film transfer sheet of FIG. 1A. Figure 2 (a) shows
2B is a sectional view of the anode forming sheet, FIG. 2B is a process chart of forming an anode using the anode forming sheet of FIG. 2A, and FIG. 3A is a metal film of an example of the present invention. 3B is a cross-sectional view of the transfer sheet, FIG. 3B is a cross-sectional view of the metal film transfer sheet in which fine holes are formed in the metal film transfer sheet of FIG. 3A, and FIG. FIG. 4B is a process diagram of forming an anode using the metal film transfer sheet of b), and FIG. 4 is a process diagram of forming fine holes by electric discharge machining. 1 ... Metal film, 2 ... Black resin layer, 3 ... Release layer, 4 ...
... Support, 5 ... Metal film transfer sheet, 6 ... Adhesive layer, 7
... Phosphor layer, 8 ... Black matrix layer, 9 ...
Face plate, 10 ... Anode, 11 ... Anode forming sheet, 12 ... Black metal film, 13 ... Metal film, 14 ... Metal film transfer sheet, 15 ... Micropores, 16 ... Micropores formed Metal film transfer sheet, 17 …… power supply, 18 …… ground, 19…
…electrode.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Matsuo 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Noboru Aikawa 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (15)

[Claims] 1. A metal film transfer sheet comprising a sheet, a black resin layer having a rough surface formed on the sheet, and a metal film formed on the surface of the black resin layer. 2. The metal film transfer sheet according to claim 1, wherein the black resin layer contains at least graphite and carbon. 3. The metal film transfer sheet according to claim 2, wherein the surface of the resin layer is roughened by graphite and carbon contained in the black resin layer. 4. The metal film transfer sheet according to claim 1, wherein the surface smoothness of the black resin layer is 400 seconds or less in terms of Bekk smoothness. 5. The thin film portion, which is thinner than the film thickness at the top, is formed in the valley portion of the unevenness on the surface of the black resin layer in the metal film. The metal film transfer sheet according to any one of 1. 6. The metal film transfer sheet according to claim 1, wherein a release layer is interposed between the sheet and the black resin layer. 7. A metal film transfer sheet comprising a black metal film having fine holes and a metal film having fine holes formed on a support. 8. The metal film transfer sheet according to claim 7, wherein a release layer is formed on one surface of the support. 9. The method for producing a metal film transfer sheet according to claim 7, wherein the fine holes in the metal film are formed by electric discharge. 10. The method for producing a metal film transfer sheet according to claim 7, wherein the fine pores of the metal film are formed by pressing projections onto the metal film. 11. The method for producing a metal film transfer sheet according to claim 7, wherein the fine holes in the metal film are formed by a sandblast method. 12. An anode forming sheet, comprising the metal film transfer sheet according to claim 1 further comprising a phosphor layer and a black matrix layer formed on the metal film. 13. The metal film transfer sheet according to claim 1, wherein the metal film on the metal film transfer sheet is pressed against a phosphor layer on a glass substrate via an adhesive,
Thereafter, the metal film transfer sheet is peeled off between the sheet and the black resin layer to transfer the black resin layer and the metal film onto the phosphor layer to form an anode. 14. Using the anode forming sheet according to claim 12, the uppermost surface of the anode forming sheet is pressed against a glass substrate via an adhesive layer, and then the anode forming sheet is combined with a sheet and a black resin layer. The anode manufacturing method, characterized in that the anode is formed on the glass substrate by peeling between the two and transferring the upper layer portion from the black resin layer on the anode forming sheet to the glass substrate and firing. 15. The method of manufacturing an anode according to claim 13, wherein fine holes are formed in the metal back layer in the step of firing the anode.