JPH10274929A - Display plate with raised part for braille and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a raised part for braille from being stained and further filled with dirt by forming a glaze layer on a stainless steel plate, providing the raised part for braille for the glaze layer, and sticking particulates of titanium oxide on the surface. SOLUTION: On the stainless steel plate 1, the glaze layer 2 is provided which protects its surface. On the surface of the glaze layer 2, the raised part for braille is provided which can be recognized by touching a finger by use of a glaze. Further, particulates 5 of titanium oxide are stuck and fixed on the surface of the glaze layer 2 including the raised part for braille. From the point of view of a stainless display plate, the surface does not get dirty through photocatalyt operation of titanium oxide fixed on the surface of the glaze layer 2. The titanium oxide particulates 5 are superfines of several nm in mean grain size and extremely small, so they can receive light uniformly from all directions. Therefore, organic substance sticking on the surface is decomposed and the surface of the display plate is held always new and clean.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display panel, and more particularly, to a display panel having braille for preventing contamination and a method of manufacturing the same.

[0002]

2. Description of the Related Art Display boards are used outdoors for posting. This display board displays pictures and characters drawn on the surface. In particular, the contents to be conveyed are indicated on the display board to which characters and the like are given, and the contents can be understood by looking at the contents. For example, many display boards are seen in scenic spots, but ordinary people can easily see the contents. However, in the case of a blind person, the contents of the disclosure cannot be understood at all because the display board cannot be read.

For this reason, the present inventor has developed a display panel having a Braille projection so that a blind person can understand the display panel (see Japanese Patent Application No. Hei 7-289142). This is a guide plate provided with braille projections of transparent glassy glaze on the surface of a ceramic guide plate. With the development of such a display board, it has become possible for a blind person to easily understand the contents of the notice by touching the surface of the display board with a finger.

[0004] However, in a scenic spot or a tourist spot, the display panel is provided outdoors, and is exposed to the wind and rain, and the surface thereof is easily stained. Moreover, if the display panel is exposed for a long time, dirt sticks to the area where the braille projection is provided,
It sticks and cannot be removed. If it becomes even worse, the uneven surface of the Braille projection will be buried, and it will not be possible to distinguish it by contact with a finger. In this case, it is meaningless to provide a Braille projection on the display panel.

[0005]

SUMMARY OF THE INVENTION The present invention is intended to solve the above problems. That is, an object of the present invention is to provide a display panel provided with a Braille projection for the blind, and more specifically, provided with a Braille projection for the blind, and furthermore, the Braille projection of the Braille projection. An object of the present invention is to provide a display panel for preventing contamination, which can prevent the contamination and further prevent the filling of the display panel with the contamination.

[0006]

As a result, the present invention has made intensive studies to achieve the above object. As a result, by fixing fine particles of titanium oxide on the surface of the Braille projection,
The present inventors have found that contamination of the surface is prevented by making the photocatalysis function, and the present invention has been completed based on this finding.

That is, the present invention (1) resides in a stainless steel display panel in which a glaze layer is formed on a stainless steel plate, and the glaze layer is provided with a projection for Braille.

[0008] (2) A glaze layer is formed on the stainless steel plate, and a projection for Braille is provided on the glaze layer, and titanium oxide fine particles are formed on the surface of the glaze layer including the projection for Braille. It is present on the fixed stainless steel display panel.

(3) A colored glaze layer is formed on the stainless steel plate, a decorative pattern is provided on the colored glaze layer, and a transparent glaze layer is formed on the decorative pattern.
The present invention resides in a stainless steel display panel in which a projection for braille is provided on the transparent glaze layer.

(4) A colored glaze layer is formed on the stainless steel plate, a decorative pattern is provided on the colored glaze layer, and a transparent glaze layer is formed on the decorative pattern.
The transparent glaze layer is provided with a projection for Braille, and is present on a stainless steel display panel in which titanium oxide fine particles are fixed on the surface of the transparent glaze layer including the projection for Braille.

(5) The stainless steel display panel according to any one of (1) to (4), wherein the glaze layer of the stainless steel plate has a thickness greater on the front surface than on the rear surface. .

(6) The stainless steel display panel according to (3) or (4), wherein the colored glaze layer has a thickness of 150 to 220 μm and the transparent glaze layer has a thickness of 30 to 150 μm.

(7) The above-mentioned (1) to (1), wherein the projection for braille is formed by screen printing.
(4) It exists on the stainless steel display panel.

The present invention also provides (8) a method for manufacturing a stainless steel display panel including the following steps 1 to 5. 1, a glaze applying step of applying a glaze on a stainless steel plate, 2, a glaze baking step of baking the glaze to form a glaze layer, and 3, a part of the transparent glaze layer having a Braille projection with a transparent glaze. Forming a raised portion for Braille to form; 4, applying a binder containing fine titanium oxide particles on a glaze layer including the raised portion for Braille to provide titanium oxide fine particles; Titanium oxide fixing step of burning and firing at the same time to fix titanium oxide fine particles on the transparent glaze layer,

(9) In the above (8), there is provided a method for manufacturing a stainless steel display panel in which the titanium oxide fixing step is performed a plurality of times to improve the density of the fixed titanium oxide.

The present invention also provides (10) a method for manufacturing a stainless steel display panel including the following steps 1 to 8. 1. A colored glaze applying step of applying a colored glaze on a stainless steel plate, 2. A colored glaze baking step of firing the colored glaze to form a colored glaze layer, 3. A decorative pattern is provided on the colored glaze layer A transparent glaze applying step of applying a transparent glaze on the colored glaze layer provided with the decorative pattern, and a transparent glaze firing step of firing the transparent glaze to form a transparent glaze layer; 6. Braille projection forming step of forming a Braille projection by a transparent glaze on a part of the transparent glaze layer; 7. Titanium oxide by applying a binder containing titanium oxide fine particles on the transparent glaze layer A titanium oxide providing step of providing fine particles; 8, a titanium oxide fixing step of firing to burn off the binder and simultaneously fix the titanium oxide fine particles to the transparent glaze layer;

(11) In the above (10), there is provided a method for manufacturing a stainless steel display panel in which a titanium oxide fixing step is performed a plurality of times to improve the density of the fixed titanium oxide.

(12) The stainless steel display panel according to (8) or (10), wherein the firing temperature in the titanium oxide fixing step is 550 to 630 ° C.

[0019]

Therefore, since the display panel of the present invention is configured as described above, organic substances and the like on the surface of the Braille projections provided on the display panel are decomposed and contamination is prevented, so that the display panel is always contaminated. Can be maintained in a new state.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION

[First Embodiment of the Invention] The present invention will be described below with reference to the drawings. FIG. 1 is a view showing the entire display panel A having a Braille projection according to the present invention. (A) is a front view and (B) is a side view. 2A and 2B are cross-sectional views showing the structure of the display panel. FIG. 2A shows the display panel of the first embodiment, and FIG. 2B shows the display panel of the second embodiment. Note that this cross-sectional view shows a case where only the surface (upper surface) of the stainless steel plate 1 is glazed for convenience.

The display panel A of the present invention is made of a stainless steel sheet 1 as a base material because it is hard to rust even if a hole is formed in the glaze layer. The thickness of the stainless steel plate 1 used varies depending on the purpose of use as the display plate A, but usually 1 to 3 mm. A glaze layer is provided on the stainless steel plate 1 to protect its surface. This glaze layer is formed by firing the glaze applied to the surface of the stainless steel plate 1.

Usually, a colored glaze and a white glaze are mainly used as the glaze because of giving characters, pictures and the like to the display panel. Further, the thickness of the glaze layer 2 needs to be sufficient to uniformly and uniformly smooth the surface roughness of the stainless steel plate 1, and from that viewpoint, from 150 to 220 μm.
A range of degrees is employed. Here, the thickness of the glaze layer 2 is preferably different between the back surface and the front surface of the stainless steel plate 1 (see FIG. 1B).

For example, the thickness of the glaze layer 21 on the back side is preferably 70 to 80% of the thickness of the glaze layer 2 on the front side. The reason for this is that if a difference is made in the thickness of the glaze layer between the front surface and the back surface, the stainless steel sheet 1 will be curved toward the thicker glaze layer by firing the glaze layer later [ FIG. 3 (A)]. In the case of the rectangular stainless steel plate 1, the center is depressed and the periphery is deformed into a protruding shape.

When the stainless steel display panel A is fixed to the display frame C to be mounted, the periphery (for example, four corners) of the stainless steel display panel A is fixed using the mounting bracket B or the like. Works. That is, the central portion of the display panel A is first brought into contact with the surface of the display frame C, and then the periphery of the display panel A is pressed to fix the curvature so as to correct the curvature [FIG. reference〕.

After being fixed, a reaction force acts on the fixed portion as prestress, so once the display panel A is once mounted, the display panel A is always strongly pressed against the display frame C. Fixing is difficult to loosen. If there is no difference in the thickness of the glaze layer 2 between the front surface and the rear surface, the display panel A becomes a flat surface because no warping occurs after firing.
Therefore, the above reaction force cannot be exerted.

By the way, the display panel A of the present invention is a Braille character that can be recognized by touching (touching) a finger on the surface of the glaze layer 2 of the stainless steel plate 2 by using a glaze, that is, Braille. One of the features is that the convex portion T is provided. Here, the Braille projection T is a so-called Braille character that can be recognized by a blind person, and specifically, has a height of 1 m.
m means a portion having a large number of fine projections. The method of providing the Braille projection T using glaze, as described later,
For example, it is formed on the first glaze layer 2 coated on the surface of the stainless steel plate by using screen printing.

The Braille projection T is provided at a position where a blind person can easily touch the display panel A with a finger or the like. As for the Braille projection T, an optimum one is specified as a normally used standard, but as described above, the height and the diameter are usually about 1 mm. As described above, the glaze layer 2 is formed on the stainless steel display panel A.
Is formed, and the braille projection T is formed thereon, it is inevitable that the surface of the glaze layer 2 is contaminated by long-term use.

Another feature of the stainless steel display panel A of the present invention is that a stain prevention function is further provided on the glaze layer 2 including the braille projections T. Specifically, the titanium oxide fine particles 5 are formed on the surface of the glaze layer 2 including the Braille projections T.
Is attached and fixed. When viewed as the stainless steel display panel A, the surface is not stained by the photocatalytic action of the titanium oxide fixed on the surface of the glaze layer 2. The titanium oxide fine particles 5
Ultra-fine particles with an average particle diameter of about several nanometers, and extremely small, can receive light from all directions uniformly,
Photocatalysis works very efficiently.

In particular, titanium oxide has a crystal strength peak between 600 and 800 ° C. depending on the heat treatment temperature, and if fired and fixed during this period, the strength is increased and durability is improved.
When such titanium oxide fine particles 5 are fixed to the glaze layer 2, the organic substances attached to the surface thereof are decomposed by the photocatalytic action of the titanium oxide. Therefore, the surface of the stainless steel display panel A is always maintained in a new and clean state.

Next, a method for manufacturing the stainless steel display panel described above will be described below. FIG. 4 is a block diagram showing a manufacturing process of the stainless steel display panel. FIG. 5 is a diagram showing a change in each step in manufacturing the stainless steel display panel A. The manufacture of a stainless steel display panel includes the following steps.

1. (Glaze Applying Step) This step is a step of applying a glaze (frit) to the surface of the stainless steel plate 1. The glaze used is a glaze mainly composed of a so-called glassy SiO ₂ component. Glazing may be applied by dipping, flowing, or spraying.
g), electrostatic spraying (electro-static)
Coating) or the like. Since the colored glaze used here functions as a canvas since a decorative pattern is provided thereon later, a colored glaze (white glaze) in particular is often provided.

2. (Glaze firing step) In this step, the glaze is fired and melted to form a glaze layer (first glaze layer).
This is the step of forming the layer 2). The firing here is usually performed by a continuous firing furnace having a drying area, a firing area, and a cooling area. The firing temperature is in the range of 700 to 880C, and the thickness of the formed glaze layer 2 is in the range of 150 to 220 m as described above.

3. (Braille Convex Section Forming Step) This step is a step of forming a Braille convex section T on the coated glaze layer 2. As a means for forming the Braille projection T, for example, a screen printing technique is employed. This screen printing is a method of printing glaze directly on the surface of the glaze layer 2 through a silk screen. In this case, the height of the Braille projection T (about 1 mm)
However, since it is relatively expensive, a thick silk screen is used. The height of the Braille projection T (about 1 m
m), a relatively thick silk screen having a thickness of about 0 or 5 mm is adopted, and the screen is formed into a projection by performing screen printing several times.

4. (Braille Protrusion Baking Step) In this step, the glaze in the portion where the Braille protrusion T is formed is fired to fix the Braille protrusion T on the glaze layer 2. It is a process. The convex part generated by screen printing is
By undergoing the firing step here, it is melted to form a mountain-shaped smooth convex portion. Therefore, with the finger, this Braille projection T
When touched, the finger feels smooth. In addition, since the convex portion generated by the screen printing becomes slightly lower due to melting, it is preferable that the convex portion is formed to be slightly higher in the above-mentioned step 3.

5. (Titanium Oxide Applying Step) In this step, a binder containing titanium oxide fine particles 5 is applied on the glaze layer (including the Braille projections T) 2, and as a result, This is a step of providing titanium oxide fine particles 5. As described above, the stainless steel sheet 1 that has been processed by passing through the steps up to the previous step is not processed at all on the surface of the glaze layer 2, which is the outermost layer, and is contaminated as it is as described above. Therefore, titanium oxide, which is a substance that performs an oxidizing action by a photocatalyst, is applied to the surface to prevent the glaze layer 2 from being contaminated. As the titanium oxide used here, fine particles of anatase type titanium oxide are employed. Fine particles of titanium oxide 5 used
Has an extremely small average particle diameter as described above and a few nm
Ultra fine particles. The titanium oxide fine particles 5
It acts as a catalyst upon receiving light, for example, sunlight, and oxidizes and decomposes contaminants (mainly organic substances) on the glaze surface. In addition, a bactericidal action also works due to the oxidizing power. On the glaze surface,
The binder containing the fine particles 5 of titanium oxide having such a function is applied. As the binder, a viscous liquid that wraps around the titanium oxide fine particles 5 and maintains a stable state, for example, a partially neutralized acrylic acid polymer is used.

6. (Titanium oxide fixing step) In this step, the titanium oxide fine particles 5 provided on the glaze layer 2 are baked in a state where the titanium oxide fine particles are solidified in a binder. This is a step of fixing (i.e., fixing) the glaze layer 5 to the glaze layer (including the Braille projection T) 2. Upon firing, the surface of the glaze layer 2 is melted, and the titanium oxide fine particles 5 are adhered and fixed thereto. Here, it is preferable that the firing temperature is 550 to 630 ° C., which is equal to or higher than the temperature at which the surface of the glaze layer 2 starts to melt at least. By sintering, the binder is usually heated to 300 ° C to 40 ° C.
It burns at about 0 ° C and disappears.
Is fixed to the glaze layer 2 as it is for the above reason. By the way, it is more preferable that both the applying step and the fixing step of the titanium oxide are performed plural times, specifically, about two to three times (see FIG. 6). This is because the density of the fixed titanium oxide fine particles can be further improved by repeating the applying step and the fixing step. Also, if the titanium oxide fine particles are adhered and fixed thickly at one time, cracks (cracks) and the like may occur, but such a plurality of times can prevent such cracks. In addition, the so-called raster phenomenon (rainbow colorization) can be prevented, and the pollution prevention function increases.

The above is the entire process of manufacturing the display panel. The first embodiment of the display panel A according to the present invention has been described above. Next, the second embodiment will be described.

[Second Embodiment] A display panel A shown below is a display panel provided with a decorative pattern such as a character, a picture, or a landscape, and provided with a Braille projection T. A glaze layer 2A (first layer) is provided on the stainless steel plate 1 to protect its surface, as in the above embodiment.
Here, a colored glaze and a white glaze are mainly used as the glaze because the display panel A is provided with a decorative pattern such as a character, a picture, and a landscape. Here is colored glaze layer 2
The thickness of A is preferably different between the back surface and the front surface of the stainless steel plate 1.

For example, the thickness of the glaze layer on the back side is preferably 70 to 80% of the thickness of the glaze layer 2A on the front side. The reason is the same as in the first embodiment. On the other hand, on the colored glaze layer 2A, a decorative pattern 3 such as a desired character, picture, or landscape is provided.

The thickness of the decorative layer made of the applied pigment is 20 to 100 μm, which is a normal range in which colors appear.
Is adopted. A character provided on the colored glaze layer 2A,
In order to protect the decorative pattern 3 such as a picture or a landscape, a transparent glaze layer (second layer) 4 for protection is further formed thereon. The thickness of the transparent glaze layer 4 is 30 to 1 that is sufficient to cover the decorative pattern 3 such as characters, pictures, and landscapes.
50 μ is employed.

Here, the characters provided on the colored glaze,
The decorative pattern 3 such as a picture or a landscape can be clearly read through the transparent glaze layer 4 thereon. On the surface of the transparent glaze layer 4, a Braille character that can be recognized by touching (touching) a finger with the glaze layer, that is, a Braille projection T is provided. As a method of providing the Braille projection T on the transparent glaze layer 4, the method described in the first embodiment is employed.

As described above, in the state where the colored glaze layer 2A is formed on the stainless steel display panel A, the decorative pattern 3 is provided, and the transparent glaze layer 4 having the Braille projection T formed thereon is provided, It is inevitable that the surface of the glaze layer 4 will be contaminated by long-term use. In this embodiment, titanium oxide fine particles 5 are further adhered and fixed on the transparent glaze layer 4. The function of the titanium oxide is as described in the first embodiment, and the stains such as organic substances fixed on the surface of the transparent glaze layer 4 are decomposed. Therefore, the stainless steel display panel A is always maintained in a new and clean state.

Next, a method of manufacturing the stainless steel display panel of the second embodiment described above will be described below. FIG.
FIG. 3 is a block diagram showing a manufacturing process of the stainless steel display panel. FIG. 8 is a diagram showing a change in each step in a method for manufacturing a stainless steel display panel. The production of this stainless display panel includes the following steps.

1. (Colored Glaze Applying Step) This step is a step of applying a colored glaze to the surface of the stainless steel plate 1. The colored glaze used here is provided with a decorative pattern on it later, so that it functions as a canvas. Therefore, a colored glaze (particularly a white-based glaze (white glaze)) is provided.

2. (Colored glaze firing step) This step is a step of firing and melting the colored glaze to form a colored glaze layer (first layer) 2A. The firing method here is as described in the first embodiment.

3. (Decoration Pattern Applying Step) This step is a step of applying a decorative pattern 3 such as a character, a picture, or a landscape on the colored glaze layer 2. This decorative pattern 3
For example, printing such as transfer or screen printing, brush application, or spraying is employed as a means for imparting. As the decorative pattern 3 of the stainless steel display panel A, a fine pattern such as a picture pattern is preferred in addition to the character pattern, and thus the decorative pattern 3 is applied at a stroke by, for example, screen printing. This screen printing is a method in which an ink obtained by kneading a pigment and fine frit powder with oil is directly printed on a surface through a silk screen. The printed thickness of the applied decorative pattern 3 is in the range of 20 to 100 μ as described above.

4. (Transparent Glaze Applying Step) This step is a step of further applying another glaze on the colored glaze layer 2A to which the decorative pattern 3 has been applied in the previous step. As a method of applying the transparent glaze, various methods similar to the method of applying the colored glaze in the colored glaze baking step described above are employed. This glaze uses a transparent glaze because the pattern needs to be seen through.

5. (Transparent Glaze Firing Step) In this step, the applied transparent glaze is fired this time to form a transparent glaze layer (second layer).
Heat the transparent glaze applied in the previous process to a heating temperature of 600 to 800
The transparent glaze layer 4 is formed by sintering and melting in the range of ° C.
Since the decorative pattern 3 is covered with the transparent glaze, the thickness of the transparent glaze layer 4 is 40 to 15 from this viewpoint.
A range of about 0μ is adopted.

6. (Braille Convex Section Forming Step) In this step, a Braille convex section T is formed on the coated transparent glaze layer 4 by using another glaze. As a means for forming the Braille projection T, screen printing is employed as described in the first embodiment. here,
As the glaze used to form the Braille projection T, when forming the decorative pattern 3 on the printed portion, using a transparent glaze is optimal because the lower pattern can be seen through. However, when forming the Braille projection T in an area other than the area where the decorative pattern is printed, a colored glaze may be used.

7. (Braille Convex Baking Step) In this step, the glaze in the portion where the Braille protrusions T are formed is fired, and the Braille protrusions T are placed on the transparent glaze layer 4. This is the step of fixing. The projections generated by the screen printing are melted and fixedly formed as mountain-shaped smooth projections through the firing step here.

8. (Titanium oxide applying step) In this step, a binder containing titanium oxide fine particles 5 is applied on the transparent glaze layer (including the braille projections) 4, and as a result, the titanium oxide is applied. This is a step of providing the fine particles 5. As described above, the stainless steel sheet that has been processed by passing through the steps up to the previous step is not processed at all on the surface of the transparent glaze layer 4, which is the outermost layer. Therefore, the transparent glaze layer 4 is provided with a function of preventing contamination.

9. (Titanium oxide fixing step) In this step, the titanium oxide fine particles 5 provided on the transparent glaze layer 4 are baked in a state where the titanium oxide is fixed to the binder. This is a step of fixing (that is, fixing) the fine particles 5 to the transparent glaze layer 4. Here, the firing method is the same as that described in the first embodiment. A temperature that can satisfy the two conditions of the temperature condition at which the surface of the transparent glaze layer 4 coated on the decorative pattern starts to melt and the temperature condition at which the crystal strength of the titanium oxide increases is, for example, about 600 ° C. The firing temperature of titanium oxide is suitable. Also in this embodiment, the application step and the fixing step of titanium oxide are both performed a plurality of times, specifically, two to
More preferably, it is performed about three times (see FIG. 9).

The above is all steps of the method for manufacturing a stainless steel display panel provided with a decorative pattern. As described above, the present invention has been described with reference to the first and second embodiments. However, the present invention is not limited to these embodiments, and various other modifications can be made without departing from the essence thereof. Needless to say.

For example, the thickness of a stainless steel plate, a colored glaze layer, a transparent glaze layer and the like is not limited to the embodiment and can be freely selected within a range that can function as an advertising medium for display. In many cases, the glaze on the back surface of the display panel is only the first layer for making the stainless steel display panel uniform. In addition, the thickness of the glaze layer on the front and back surfaces of the display panel is such that the thickness of the entire glaze layer on the back surface is equal to the thickness of the glaze layer on the front surface and the thickness of the front and back surfaces finally applied to the display panel. 70 to 8 of thickness
It may be 0%.

[0055]

The display panel of the present invention is provided with the Braille projection T, so that the contents can be easily understood by touching even a blind person. When titanium oxide fine particles are adhered to the surface, the titanium oxide acts as a photocatalyst, and its oxidizing action prevents the surface of the glaze layer from being stained. There is no.
As a result, the surface of the display panel, including the portion of the Braille projection T, is always kept in a new state, so that maintenance such as cleaning becomes unnecessary. In addition, since the braille projection T, which is a contact portion, has a sterilizing effect, it is always clean.

[Brief description of the drawings]

FIG. 1 is a view showing a display panel A having a Braille projection T according to the present invention, wherein FIG. 1A is a front view and FIG.
It is a side view.

FIGS. 2A and 2B are cross-sectional views showing the structure of the display panel. FIG. 2A is a cross-sectional view of the display panel of the first embodiment, and FIG.
It is a display board of an embodiment.

FIGS. 3A and 3B show a stainless steel display panel in which the thickness of the glaze layers on the front and back is different, wherein FIG. 3A shows the state after firing and FIG.

FIG. 4 is a block diagram showing a manufacturing process of the stainless steel display panel according to the first embodiment.

FIG. 5 is a diagram showing a change in each step of the stainless steel display panel in the first embodiment.

FIG. 6 is a block diagram showing another manufacturing process of the stainless steel sheet according to the first embodiment.

FIG. 7 is a block diagram illustrating a manufacturing process of the stainless steel display panel according to the second embodiment.

FIG. 8 is a diagram showing a change in each step of the stainless steel display panel according to the second embodiment.

FIG. 9 is a block diagram showing another manufacturing process of the stainless steel plate according to the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Stainless steel plate 2 ... Glaze layer 2A ... Color glaze layer 21 ... Glaze layer on the back surface 3 ... Decorative pattern of characters, patterns, scenery, etc. 4 ... Transparent glaze layer 5 ... Titanium oxide fine particles A ... Display board B ... Mounting bracket C ... Display frame H: Mounting hole

Claims (12)

[Claims] 1. A stainless steel display panel comprising: a glaze layer formed on a stainless steel plate; and a projection for Braille provided on the glaze layer. 2. A glaze layer is formed on a stainless steel plate, and a projection for braille is provided on the glaze layer, and titanium oxide fine particles are fixed on the surface of the glaze layer including the projection for braille. A stainless display panel characterized by the above. 3. A colored glaze layer is formed on a stainless steel plate, a decorative pattern is provided on the colored glaze layer, and a transparent glaze layer is formed on the decorative pattern. A stainless steel display panel provided with a convex portion. 4. A colored glaze layer is formed on a stainless steel plate, a decorative pattern is provided on the colored glaze layer, a transparent glaze layer is formed on the decorative pattern, and Braille is formed on the transparent glaze layer. A titanium oxide fine particle is fixed to the surface of the transparent glaze layer including the Braille projection. 5. The stainless steel display panel according to claim 1, wherein the glaze layer of the stainless steel plate is formed to be thicker on the front surface than on the back surface. 6. The thickness of the colored glaze layer is 150 to 220 μm.
5. The stainless display panel according to claim 3, wherein the transparent glaze layer has a thickness of 30 to 150 [mu] m. 7. The stainless steel display panel according to claim 1, wherein the braille projections are formed by screen printing. 8. A method for manufacturing a stainless steel display panel comprising the following steps 1 to 5. 1, a glaze applying step of applying a glaze on a stainless steel plate; 2, a glaze firing step of firing the glaze to form a glaze layer; Forming a raised portion for Braille to form; 4, applying a binder containing fine titanium oxide particles on a glaze layer including the raised portion for Braille to provide titanium oxide fine particles; Titanium oxide fixing step of burning and firing at the same time to fix titanium oxide fine particles on the transparent glaze layer, 9. The method for manufacturing a stainless steel display panel according to claim 8, wherein a titanium oxide fixing step is performed a plurality of times to increase the density of the fixed titanium oxide. 10. A method for manufacturing a stainless steel display panel comprising the following steps 1 to 8. 1. A colored glaze applying step of applying a colored glaze on a stainless steel plate, 2. A colored glaze baking step of firing the colored glaze to form a colored glaze layer, 3. A decorative pattern is provided on the colored glaze layer A transparent glaze applying step of applying a transparent glaze on the colored glaze layer provided with the decorative pattern, and a transparent glaze firing step of firing the transparent glaze to form a transparent glaze layer; 6. Braille projection forming step of forming a Braille projection by a transparent glaze on a part of the transparent glaze layer; 7. Titanium oxide by applying a binder containing titanium oxide fine particles on the transparent glaze layer A titanium oxide providing step of providing fine particles; 8, a titanium oxide fixing step of firing to burn off the binder and simultaneously fix the titanium oxide fine particles to the transparent glaze layer; 11. The method for manufacturing a stainless steel display panel according to claim 10, wherein the titanium oxide fixing step is performed a plurality of times to increase the density of the fixed titanium oxide. 12. The sintering temperature in the titanium oxide fixing step is 550 to 630 ° C.
Or the stainless steel display panel according to 10.