JPH08236019A - Manufacture of color cathode ray tube - Google Patents

Abstract

PURPOSE: To provide a method of manufacturing a color cathode ray tube whereby a fluorescent screen with pigment filter of high quality having stable luminescent color of high contrast and high purity can be manufactured relatively inexpensively. CONSTITUTION: A black matrix 15 is formed in an internal surface of a faceplate 4. Next, blue color pigment slurry is applied to form a blue color pigment layer 16B, and it is exposed to be hardened. Then, blue fluorescent material slurry is applied onto the pigment layer 16B, to form a blue color fluorescent material layer 17B, and a prescribed part of the blue color fluorescent material layer 17B and the blue color pigment layer 16B is exposed by an exposure mask. Successively, the blue color pigment layer 16B and the blue color fluorescent material layer 17B are developed, and after a fluorescent material pattern with blue color pigment filter is formed, a fluorescent material pattern with green color pigment filter is formed via each process identical to that performed in blue color relating to green color. Further, a fluorescent material pattern with red color pigment filter is formed via each process identical to that in blue color relating to red color, and a fluorescent screen with pigment filter is formed in an internal surface of the face plate 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a color cathode ray tube, and more particularly to a color cathode ray tube which can manufacture a stable fluorescent surface with a pigment filter having a high contrast and a high purity emission color at a relatively low cost. Manufacturing method.

[0002]

2. Description of the Related Art Generally, in a color cathode ray tube, in order to improve the contrast and the emission color purity of the fluorescent surface formed on the inner surface of the face plate, the fluorescent material is provided between the inner surface of the face plate and the fluorescent layer of each color. It is known to form a pigment filter layer having the same color as the optical layer, and one example thereof is JP-A-64-7457 or JP-A-5-2667.
There is means disclosed in No. 9.

In this case, the means disclosed in Japanese Unexamined Patent Publication No. 64-7457 applies a photosensitive slurry containing a pigment of a first color (for example, blue) to the inner surface of the face plate of the cathode ray tube to form a first color. Of the first color, the pigment layer of the first color is exposed using an exposure mask, the exposed pigment layer of the first color is developed, and the unexposed portion is removed to form the pigment filter layer of the first color. Form. Next, a photosensitive slurry containing a phosphor of the first color is applied on the pigment filter layer of the first color to form a phosphor layer of the first color, and then a first color is formed using an exposure mask. And exposing the phosphor layer of the first color to develop a phosphor pattern with a pigment filter of the first color. continue,
The second color (for example, green) is subjected to the same steps as those performed for the first color to form a phosphor pattern with a pigment filter for the second color, and then for the third color (for example, red), First
The same steps as those performed for the color are performed to form a fluorescent pattern with a third color pigment filter, and a color fluorescent surface is formed on the inner surface of the face plate.

Further, the means disclosed in JP-A-5-26679 applies a photosensitive slurry containing a pigment of a first color (for example, blue) to the inner surface of a face plate of a cathode ray tube,
After forming the first color pigment layer, the first color pigment layer is formed on the first color pigment layer.
A photosensitive slurry containing a color phosphor is applied to form a first color phosphor layer. Then, using the exposure mask, the first
Of the first pigment layer and the first phosphor layer are simultaneously exposed, and the exposed first pigment layer and the first phosphor layer are developed to form a phosphor pattern with a first color pigment filter. . Subsequently, the second color (for example, green) is subjected to the same steps as those performed for the first color to form a phosphor pattern with a pigment filter for the second color, and then the third color (for example, For red), the same steps as those performed for the first color are performed to form a phosphor pattern with a third color pigment filter, and a color fluorescence surface is formed on the inner surface of the face plate.

[0005]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
No. 57 discloses a means for forming a pigment filter-attached phosphor pattern on the inner surface of a face plate of a cathode ray tube, the pigments of the first to third colors and the phosphors of the first to third colors. For each of the above, each step of coating the slurry, exposing the pigment layer and the phosphor layer using an exposure mask, and developing the pigment layer and the phosphor layer after the exposure is required. Therefore, compared with the case of forming a fluorescent substance pattern without a pigment filter, twice the number of manufacturing steps is required, and the manufacturing cost of the color cathode ray tube increases correspondingly, which is considerably expensive. There's a problem.

On the other hand, the means disclosed in Japanese Unexamined Patent Publication (Kokai) No. Hei 5-26679 provides the first to third colors for forming a phosphor pattern with a pigment filter on the inner surface of the face plate of the cathode ray tube.
Since the steps of exposing the pigment layer using an exposure mask and developing the pigment layer after exposure are omitted for each of the color pigments, compared with the means disclosed in JP-A-64-7457, The number of processes is reduced, and the number of processes is reduced,
Although the manufacturing cost of a color cathode ray tube is low, it is difficult to form a high-quality fluorescent surface by omitting the steps of exposing the pigment layer using an exposure mask and developing the pigment layer after exposure. There is a new problem.

That is, in the case of the means disclosed in JP-A-5-26679, when the phosphor slurry is applied onto the unexposed and undeveloped pigment layer, the pigment layer is contained in the phosphor slurry. It dissolves in water, causing unevenness in the pigment layer, and when exposing the laminated film of the pigment layer and the phosphor layer using an exposure mask, the phosphor layer on the upper side Ultraviolet rays are scattered or absorbed and the amount of ultraviolet rays reaching the lower pigment layer is reduced, the pigment layer cannot be sufficiently cured, and the fluorescent layer peels off together with the pigment layer during development. .

The present invention solves each of the problems described above, and an object thereof is to manufacture a stable and high-quality fluorescent surface with a pigment filter having a high contrast and a high-purity emission color at a relatively low cost. An object of the present invention is to provide a method of manufacturing a color cathode ray tube capable of manufacturing the color cathode ray tube.

[0009]

In order to achieve the above object, the present invention comprises means for forming a fluorescent surface with a pigment filter on the inner surface of a face plate of a color cathode ray tube through the following steps.

A first step of forming a black matrix on the inner surface of the face plate, and a second step of forming a pigment layer of the first color by applying a slurry containing a fine particle pigment of the first color on the black matrix. A third step of exposing and curing the first color pigment layer, applying a slurry containing first color phosphor particles onto the first color pigment layer,
Fourth step of forming a first-color phosphor layer, fifth step of exposing a predetermined portion of the first-color phosphor layer and the first-color pigment layer, respectively, using an exposure mask A sixth step of developing the first color pigment layer and the first color phosphor layer to form a first color pigment filter-attached phosphor pattern,
For the second color, through the same steps as the second to sixth steps performed for the first color, a seventh step for forming a phosphor pattern with a pigment filter for the second color, and a third color On the other hand, an eighth step of forming a phosphor pattern with a pigment filter of the third color through the same steps as the second to sixth steps performed for the first color.

[0011]

In the above means, when the phosphor pattern with the pigment filter is formed on the inner surface of the face plate of the cathode ray tube, the slurry containing the pigment is first added to each of the first to third colors. Performing each step of coating, exposing the pigment layer, then applying the slurry containing the phosphor, performing each step of exposing the phosphor layer, followed by the pigment layer of the laminated structure after exposure and The steps of simultaneous development of the phosphor layer are carried out.

[0012] As described above, according to the above-mentioned means, the number of steps for manufacturing a color fluorescent surface is different for each pigment and fluorescent material.
And applying a slurry for each of the first to third colors,
Exposure of the pigment layer and the fluorescent layer using an exposure mask, because it is reduced compared to the step of developing the pigment layer and the fluorescent layer after exposure, only the amount of the number of steps is reduced, The manufacturing cost of the color cathode ray tube can be reduced.

Further, according to the above-mentioned means, the pigment layer is independently exposed to cure the pigment layer, so that the pigment layer dissolves in the water in the phosphor slurry and the pigment layer is dissolved. It is possible to produce a stable and high-quality color fluorescent surface without causing unevenness in the surface or preventing the pigment layer from being sufficiently cured and the fluorescent layer from peeling off together with the pigment layer during development.

[0014]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a sectional view showing an example of the construction of a color cathode ray tube having a color fluorescent surface manufactured by the manufacturing method according to the present invention.

In FIG. 1, 1 is a panel portion, 2 is a funnel portion, 3 is a neck portion, 4 is a face plate, 5 is a color fluorescent surface, 6 is a shadow mask, 7 is a mask frame, 8 is a deflection yoke, and 9 is a deflection yoke. Is an in-line electron gun, 10 is a purity adjusting magnet, 11 is a center beam static convergence adjusting magnet, 12 is a side beam static convergence adjusting magnet, 13 is a magnetic shield, and 14 is an electron beam.

The glass tube constituting the color cathode ray tube includes a panel portion 1 arranged on the front side, a neck portion 3 accommodating an in-line type electron gun 9, and a panel portion 1.
And a funnel portion 2 arranged in the middle of the neck portion 3. The panel portion 1 has a face plate 4 on the front surface, and a color fluorescent surface 5 is arranged and formed on the inner surface of the face plate 4. A mask frame 7 is fixedly arranged inside the peripheral portion of the panel portion 1, and the shadow mask 6 is attached by the mask frame 7 so as to be arranged so as to face the color fluorescent film 5. A magnetic shield 13 is provided inside the connecting portion between the panel portion 1 and the funnel portion 2, and a deflection yoke 8 is provided outside the connecting portion between the funnel portion 2 and the neck portion 3. A purity adjusting magnet 10, a center beam static convergence adjusting magnet 11 and a side beam static convergence adjusting magnet 12 are arranged side by side on the outer side of the neck portion 3, and three electron beams 14 projected from the in-line type electron gun 9 are arranged. (Only one is shown) is configured to reach the fluorescent film 5 through the shadow mask 6 after being deflected in a predetermined direction by the deflection yoke 8.

In this case, the operation of the color cathode ray tube having the above-mentioned structure, that is, the image display operation is the same as the image display operation of the known color cathode ray tube, and such display operation is already known. The description of the image display operation of the color cathode ray tube is omitted.

FIG. 2 is a sectional view showing a partial cross section of the color fluorescent surface of the color cathode ray tube manufactured by the manufacturing method according to the present invention.

In FIG. 2, reference numeral 15 is a black matrix (BM), 16B is a blue pigment filter, 16G is a green pigment filter, 16R is a red pigment filter, 17B is a blue fluorescent material layer, 17G is a green fluorescent material layer, and 17R. Is a red phosphor layer, and other components that are the same as those shown in FIG. 1 are denoted by the same reference numerals.

The color fluorescent surface 5 arranged and formed on the inner surface of the face plate 4 of the color cathode ray tube has a black matrix 15 formed so as to be in contact with the inner surface of the face plate 4 at a predetermined interval, and each black. On the blue pigment filter 16B, the green pigment filter 16G, the red pigment filter 16R and the blue pigment filter 16B, the green pigment filter 16G, and the red pigment filter 16R that are alternately formed between the matrices 15 so as to contact the inner surface of the face plate 4. Blue phosphor layer 17 formed on each
B, the green phosphor layer 17G, and the red phosphor layer 17R.

Subsequently, FIGS. 3A to 3D and FIG.
(A) thru | or (c) are manufacturing process drawings which show 1st Example at the time of forming a color fluorescent surface by the manufacturing method of the color cathode ray tube by this invention.

In FIGS. 3A to 3D and FIGS. 4A to 4C, 18 is an exposure mask, 19 is ultraviolet light for exposure, and other components are the same as those shown in FIG. The same symbols are attached to the elements.

A method of manufacturing the color cathode ray tube of the first embodiment will be described with reference to FIGS. 3 (a) to 3 (d).

In the first embodiment, the color fluorescent surface 5
In the case of forming a film, first, the blue (first color) pigment layer 1
6B and phosphor layer 17B are formed, and then green (second
(Color) pigment layer 16G and phosphor layer 17G, and finally, red (third color) pigment layer 16R and phosphor layer 17R.
Shall be formed.

First, a blue pigment slurry, a green pigment slurry and a red pigment slurry are prepared respectively, and further, a blue phosphor slurry, a green phosphor slurry and a red phosphor slurry are prepared respectively. In this case, blue, green,
The red pigment slurries and the blue, green, and red phosphor slurries may all have a known composition. As an example, the blue pigment slurries have an average particle size of 5.0% by weight. Is about 10 to 100 nm cobalt aluminate (blue pigment), 5.0 wt% polyvinyl alcohol (PVA), 0.3 wt% sodium dichromate,
The composition has a composition of 0.1% by weight of a surfactant and the balance of pure water. As a blue phosphor slurry, polyvinyl alcohol (PVA) -sodium dichromate-based photosensitive liquid and a blue phosphor are used. Is dispersed. here,
The reason why the average particle size of cobalt aluminate (blue pigment) is selected to be about 10 to 100 nm is that if the average particle size becomes smaller than 10 nm, it becomes difficult to cleanly remove the unexposed portion during development, and other colors This is because the color mixture with the above pigment easily occurs. On the other hand, when the average particle diameter becomes coarser than 100 nm, the transparency of the obtained pigment layer 16B decreases and the light from the phosphor layer 17B is cut. Therefore, the brightness is reduced.

First, as shown in FIG. 3A, a large number of black matrices 15 are arranged and formed at predetermined locations on the inner surface of the face plate 4 of the color cathode ray tube. In this case, the black matrix 15 is formed by a known black matrix forming means.

Next, as shown in FIG. 3B, the blue pigment slurry is applied onto the exposed inner surface of the face plate 4 and the black matrix 15 by a spin coating method and dried. To form the blue pigment layer 16B.

Subsequently, as shown in FIG. 3C, an exposure mask 18 is arranged on the dried blue pigment layer 16B, and the blue pigment layer 1 is exposed by the exposure mask 18 as shown in the figure.
Only a predetermined portion of 6B (where the blue phosphor layer 17B is formed) is irradiated with the ultraviolet ray 19 at an illuminance of 1.8 W / m ² for 50 seconds to expose it.

Then, as shown in FIG. 3 (d), the blue fluorescent substance slurry is applied onto the exposed blue pigment layer 16B by a spin coating method and dried to form a blue fluorescent substance layer 17B. To form.

Subsequently, as shown in FIG. 4 (a), the exposure mask 18 is placed again on the dried blue phosphor layer 17B, and as shown in the figure, the exposure mask 18 is used to expose the blue phosphor layer. The ultraviolet rays 19 are irradiated for 90 seconds at an illuminance of 1.8 W / m ² only for a predetermined portion of 17B (the portion where the blue phosphor layer 17B is formed) for exposure.

Next, as shown in FIG. 4 (b), pure hot water is sprayed on the exposed blue phosphor layer 17B to develop the laminated portion of the blue pigment layer 16B and the blue phosphor layer 17B. ,
The unexposed portion of the laminated portion of the blue pigment layer 16B and the blue phosphor layer 17B is removed by washing, and the inner surface of the face plate 4 is provided with a blue pigment filter (blue pigment layer) 16B and a blue phosphor pattern (blue phosphor). Layer 17B is formed.

Subsequently, as shown in FIG. 4 (c), green is also used in blue as shown in FIGS. 3 (b) to 3 (d).
And, using the same steps as the steps of FIGS. 4 (a) and 4 (b), a green fluorescent substance pattern (green fluorescent substance layer) 17G with a green pigment filter (green pigment layer) 16G is formed on the inner surface of the face plate 4. Then, the red color is formed on the inner surface of the face plate 4 by using the same steps as those of FIGS. 3B to 3D and FIGS. By forming a red fluorescent substance pattern (red fluorescent substance layer) 17R with a pigment filter (red pigment layer) 16R,
A color fluorescent surface 5 of three colors is formed on the inner surface of the face plate 4 of the color cathode ray tube.

After the color fluorescent surface 5 is formed, the color cathode ray tube is completed through the same steps as those in the usual manufacturing method of the color cathode ray tube.

As described above, according to the first embodiment, the number of steps for manufacturing the color fluorescent surface 5 is as follows for each pigment and fluorescent material and for each of the first to third colors. , Coating of the slurry, exposure of the pigment layer and the phosphor layer using an exposure mask,
This is reduced as compared with the known manufacturing process of the color fluorescent surface when developing the pigment layer and the phosphor layer after exposure, and the manufacturing cost of the color cathode ray tube can be reduced by reducing the number of processes.

Further, according to the first embodiment, the pigment layers 16B, 16G and 16R of the respective colors are independently exposed to cure the pigment layers 16B, 16G and 16R, so that the pigments of the respective colors are exposed. Layers 16B, 16G, and 16R are dissolved in the water in the phosphor slurry of each color to form the pigment layer 16 of each color.
B, 16G, 16R does not generate unevenness, or the pigment layers 16B, 16G, 16R of the respective colors are not sufficiently cured, and the pigment layers 16B, 16G, 16R together with the fluorescent layers 17B, 17G of the respective colors during development. It is possible to manufacture a stable and high-quality color fluorescent surface 5 without peeling off 17R.

According to the first embodiment, the pigment layers 16B, 16G and 16 are applied to the three colors of blue, green and red.
Although the R development is described as being performed simultaneously with the development of the phosphor layers 17B, 17G, and 17R of the same color, the present invention is not limited to such simultaneous development of three colors, and the blue Only the pigment layer 16B is developed by the blue fluorescent layer 1
7B at the same time, and for green and red, change the development of the pigment layers 16G, 16R to be independent of the development of the phosphor layers 17G, 17R, as in known manufacturing methods, or , Blue and red pigment layers 16B, 16
R development is performed simultaneously with the blue and red phosphor layers 17B and 17R, and for green only, the development of the pigment layer 16G is independent of the development of the phosphor layer 17G, as in known manufacturing methods. You may change so that it may be performed. However, when these changes are made, the manufacturing cost of the color cathode ray tube becomes slightly higher than that of the first embodiment.

According to the first embodiment, when the pigment layers 16B, 16G and 16R of the respective colors are exposed to the ultraviolet rays 19, the example of performing the exposure from the inner surface side of the face plate 4 has been described. The change may be made from the outer surface side of the face plate 4.

Next, FIG. 5 is a manufacturing process drawing showing a part of the process of the second embodiment in the case of forming a color fluorescent surface by the method of manufacturing a color cathode ray tube according to the present invention.

In FIG. 5, reference numeral 20 is a white fluorescent lamp, 21 is visible light for exposure, and the same constituent elements as those shown in FIGS. 3A to 3D are designated by the same reference numerals. There is.

By the way, in the second embodiment, each exposure of the blue pigment layer 16B, the green pigment layer 16G and the red pigment layer 16R in the first embodiment is performed by using an exposure mask as shown in FIG. 3 (c). 18 in place of the portion exposed to ultraviolet 19 using, as shown in FIG. 5, the visible light using a white fluorescent lamp 20, for example, at an intensity 0.8 W / m ² 2
Since the whole surface exposure is performed for 0 seconds, and the respective steps other than the exposure of the blue pigment layer 16B, the green pigment layer 16G and the red pigment layer 16R are exactly the same as the steps of the first embodiment, Further description of the second embodiment will be omitted.

However, in the second embodiment, the exposure of each of the blue pigment layer 16B, the green pigment layer 16G and the red pigment layer 16R is replaced with the whole exposure by visible light, so that FIG. A laminated portion of the blue pigment layer 16B and the blue phosphor layer 17B as shown, a laminated portion of the green pigment layer 16G and the green phosphor layer 17G, and a laminated portion of the red pigment layer 16R and the red phosphor layer 17R. When each part is exposed, the illuminance and irradiation time of the ultraviolet rays 19 are increased as compared with the first embodiment, and for example, partial exposure is performed for 130 seconds at an illuminance of 2.8 W / m ² .

Also in the second embodiment, as in the first embodiment, the manufacturing cost of the color cathode ray tube can be made low, and the stable and high quality color fluorescent surface 5 can be manufactured. You can

In each of the above-described embodiments, the order of forming the three color pigment layers 16B, 16G and 16R and the order of forming the three color phosphor layers 17B, 17G and 17R are blue, green and red. Although it was explained that they are performed in order, these 3
Of course, the order of colors is not limited to the order described above, and can be changed as appropriate.

[0045]

As described above in detail, in the present invention, when the pigment filter-attached phosphor pattern is formed on the inner surface of the face plate of the cathode ray tube, the first to third colors are used.
For each color, first perform the steps of coating the slurry containing the pigment and exposing the pigment layer, then performing the steps of coating the slurry containing the phosphor and exposing the fluorescent layer. Then, the step of simultaneously developing the pigment layer and the phosphor layer having the laminated structure after the exposure is performed. Thus, according to the present invention,
When manufacturing a color fluorescent surface, the number of steps is, for each pigment and fluorescent material, and for each color of the first to third colors, slurry coating, pigment layer and fluorescent material using an exposure mask. It is said that the manufacturing cost of the color cathode ray tube can be reduced because the number of steps is reduced because the number of steps is reduced as compared with the step of exposing the layer and developing the pigment layer and the phosphor layer after the exposure. effective.

Further, according to the present invention, since the pigment layer is exposed independently to measure the curing of the pigment layer, the pigment layer dissolves in the water in the phosphor slurry and the pigment layer is dissolved. It is possible to produce a stable and high-quality color fluorescent surface by preventing unevenness in the surface and the pigment layer from being sufficiently cured, and the fluorescent layer from peeling off together with the pigment layer during development.

[Brief description of drawings]

FIG. 1 is a cross-sectional configuration diagram showing an example of the configuration of a color cathode ray tube having a color fluorescent surface manufactured by a manufacturing method according to the present invention.

FIG. 2 is a cross sectional view showing a cross section of a part of a color fluorescent surface of a color cathode ray tube manufactured by a manufacturing method according to the present invention.

FIG. 3 is a manufacturing process diagram showing the first half of the process of the first embodiment in the case of forming a color fluorescent surface by the method for manufacturing a color cathode ray tube according to the present invention.

FIG. 4 is a manufacturing process diagram showing a second half of the process of the first embodiment in the case of forming a color fluorescent surface by the method for manufacturing a color cathode ray tube according to the present invention.

FIG. 5 is a manufacturing process drawing showing a part of the process of the second embodiment in the case of forming a color fluorescent surface by the method of manufacturing a color cathode ray tube according to the present invention.

[Explanation of symbols]

1 Panel Part 2 Funnel Part 3 Neck Part 4 Face Plate 5 Color Fluorescent Surface 6 Shadow Mask 7 Mask Frame 8 Deflection Yoke 9 In-line Electron Gun 10 Purity Adjusting Magnet 11 Center Beam Static Convergence Adjusting Magnet 12 Side Beam Static Convergence Adjusting Magnet 13 Magnetic Shield 14 Electron Beam 15 Black Matrix (BM) 16B Blue Pigment Filter 16G Green Pigment Filter 16R Red Pigment Filter 17B Blue Fluorescent Material Layer 17G Green Fluorescent Material Layer 17R Red Fluorescent Material Layer 18 Exposure Mask 19 UV Light for Exposure 20 incandescent fluorescent light 21 exposure visible light

Claims (4)

[Claims] 1. A method of manufacturing a color cathode ray tube, wherein a fluorescent surface with a pigment filter is formed on an inner surface of a face plate of the color cathode ray tube through the following steps. A first step of forming a black matrix on the inner surface of the face plate; a second step of applying a slurry containing a fine particle pigment of a first color on the black matrix to form a pigment layer of a first color; A third step of exposing and curing the pigment layer of one color; applying a slurry containing the phosphor particles of the first color on the pigment layer of the first color to form a phosphor layer of the first color; A fourth step of forming, a fifth step of exposing predetermined portions of the first color phosphor layer and the first color pigment layer using an exposure mask, the first color pigment layer, and A sixth step of developing the phosphor layer of the first color to form a phosphor pattern with a pigment filter of the first color, the second to second steps performed for the second color for the second color A seventh step of forming the phosphor pattern with the second color pigment filter through the same step as the sixth step Step, with respect to the third color, the eighth step of forming said second to sixth steps the third color pigment phosphor patterned filter through the same steps as were carried out in the first color. 2. The method of manufacturing a color cathode ray tube according to claim 1, wherein the exposure of the pigment layer in the third and eighth steps is performed using an exposure mask. 3. The method of manufacturing a color cathode ray tube according to claim 1, wherein the exposure of the pigment layer in the third and eighth steps is a total exposure performed from an inner surface or an outer surface of the face plate. . 4. The seventh step of forming a phosphor pattern with a pigment filter of the second color, and / or the eighth step of forming a phosphor pattern with a pigment filter of the third color, The method of manufacturing a color cathode ray tube according to claim 1, wherein the following steps are used. A step of forming a pigment layer of a second color and / or a third color, a step of exposing a predetermined portion of the pigment layer of the second color and / or a third color using an exposure mask, the second color and / or Develop the third color pigment layer to develop the second
Forming a pigment layer pattern of a color and / or a third color, a slurry containing phosphor particles of a second color and / or a third color on the pigment layer pattern of the second color and / or the third color To form a phosphor layer of a second color and / or a third color, and exposing a predetermined portion of the phosphor layer of the second color and / or the third color using an exposure mask. A step of developing the second color and / or third color phosphor layers to form a pigment filter-attached phosphor pattern.