JP4420274B2 - Clock display board - Google Patents

Description

  The present invention includes a solar cell (solar battery) built in a watch and used by converting light energy into electrical energy, or a backlight illumination electroluminescence (EL) built into the watch, or both surface sides. The present invention relates to a clock display plate (dial plate) disposed on the upper surface side.

  Conventionally, solar cells (solar cells) have been used for the display panel structure of watches with solar cells such as watches, but these solar cells are usually made of amorphous silicon and convert light energy into electrical energy. It is. Therefore, the solar cell is placed at the position where the light hits from its function, that is, on the lower surface side of the watch panel with solar cell, and the received light is transmitted through the watch display board and incident on the solar cell to generate power. Is something that causes

  In addition, electroluminescence for backlight illumination is used in the display panel structure of a watch with a backlight such as a wristwatch. The electroluminescence is arranged on the lower surface side of the display panel for a clock with backlight, and emits emitted light. It is designed to transmit light through the dial.

  As described above, since the timepiece display board with solar cell and the timepiece display board with backlight are required to transmit light, plastic materials have been used in many cases.

  That is, since it is a plastic material, in addition to providing light transmission, it is inexpensive and can be easily decorated by painting or printing.

  Moreover, since it is a plastic material, the solar cell watch has an advantage that the dark purple of the solar cell can be easily relieved by coloring or decorating.

  However, in such a solar timepiece display board structure, as shown in FIG. 8, since there is an insulating band 133 between the solar cells 132, the insulating band 133 is formed as a crosshair. Appearance, the design including the color tone was greatly limited, the appearance was inferior, and the merchantability was reduced.

  For this reason, a solar timepiece display board as disclosed in Patent Document 1 has been proposed as a plastic material used for the solar cell timepiece display board.

  That is, as shown in FIG. 9, the solar timepiece display board includes a solar cell 111 fixed to the surface side of the module 4, and a solar timepiece display board 112 provided on the front side of the solar cell 111. It is composed of

  This solar watch display board 112 is a colored translucent substrate 113, a patterned layer 114 provided on the front side of the colored translucent substrate 113, and a colored thin film layer deposited on the back side of the colored translucent substrate 113. The metal vapor-deposited layer 115.

By configuring in this way, out of the light incident on the colored translucent substrate 113, light in a wavelength range different from the color of the colored translucent substrate 113 is absorbed by the colored translucent substrate 113. Part of the light in the same wavelength range as the color of the colored translucent substrate 113 passes through the metal vapor deposition layer 115 to reach the solar cell, contributes to power generation of the solar cell, and the rest is reflected toward the surface. .

  The light reflected by the metal vapor deposition layer 115 is diffused by the pigment or dye mixed in the colored translucent substrate 113 and the pattern layer 114 and reaches the eyes of the observer. As a result, the observer can observe the entire surface of the colored translucent substrate 113 with the subtle color combination of the color of the metal deposition layer 115 based on the color of the colored translucent substrate 113 and the pattern layer 114. Is visible. For this reason, the brown-brown or dark blue solar cell and the crosshair of the insulation band are not seen through.

As a result, the design variation is enhanced to prevent the solar cell from being visually recognized from the outside, and at the same time, it has a light transmittance that causes at least power generation of the solar cell.
JP 09-269382 A

  However, in the conventional solar timepiece display panel 112 disclosed in Patent Document 1, pellets obtained by mixing a pigment or a dye with a transparent polycarbonate resin or acrylic resin are used, and a colored translucent substrate is formed by injection molding. 113 is produced. For this reason, the color tone was monochromatic, poorly changed, and lacked a high-class feeling.

  Further, in this solar timepiece display board 112, since the metal vapor deposition layer 115 is located on the back side of the colored translucent substrate 113, this timepiece display board 112 has no metallic feeling, lacks a sense of luxury, and has little design change. It was a thing.

  Therefore, the conventional solar timepiece display board 112 disclosed in Patent Document 1 has a metal texture, color tone, luxury, design variation even when compared with a timepiece display board made of metal usually used in ordinary watches. None of these were still fully satisfactory.

  In view of such a current situation, the present invention can produce the same metal texture, color tone, luxury, and subtle hue as a normal metal display board, and the design variation is greatly expanded. An object of the present invention is to provide a timepiece display board that can be improved in quality and can be commercialized.

  Moreover, in the present invention, the solar cell or electroluminescence disposed on the back surface of the timepiece display plate can not be seen from the display plate side, and a predetermined light transmittance can be ensured. It has a light transmittance that contributes, does not hinder the function of the solar watch itself, does not always operate and stop, and shields the electroluminescence illumination light for backlight illumination, thereby increasing the illumination intensity. An object of the present invention is to provide a timepiece display panel that does not decrease.

The present invention has been invented in order to achieve the above-described problems and objects in the prior art, and the timepiece display panel of the present invention is provided on the surface side of a solar cell or electroluminescence built in the timepiece. A display panel for a watch that is arranged to transmit light,
A light-transmitting substrate containing a pigment having a gloss like pearl;
A control film that is formed on the lower surface side of the light-transmitting substrate and adjusts color tone and light transmittance;
It is formed on the upper surface side of the light-transmitting substrate and is composed of a metal film or metal oxide film that gives a metal texture.

  With this configuration, pearly light shine is obtained by the action of a pearly luster pigment contained in the light-transmitting substrate, and the color tone is controlled by the control film formed on the back surface of the display board. In addition, the metal film or metal oxide film formed on the upper surface side of the light-transmitting substrate will give a metal texture, and these combined actions will result in unprecedented color change and metal texture. In addition, it is possible to provide a display panel for a watch, which has a sparkle of light and the like, is extremely superior in quality, has a great design variation, and has an appearance quality which can enhance the merchantability.

  In addition, in this case, the timepiece display board can ensure that the solar cell or electroluminescence disposed on the back surface of the timepiece display board is not visible from the display board side and has a predetermined light transmittance. It has light transmittance that contributes to the power generation of the solar cell, does not hinder the function of the solar watch itself, does not stop the watch from operating and stops at all times, and shields the electroluminescence illumination light for backlight illumination As a result, the illumination level does not decrease.

In the present invention, a pigment having a gloss like pearls contained in the light transmissive substrate, consist of pigments metal or metal oxide on the surface of the Mai mosquito coated is preferred.

In this case, as the metal to be coated on the surface of the Mai mosquitoes, nickel, aluminum, gold, silver, copper, one metal selected from palladium or be composed of two or more alloying metal of these metals, it can.

The metal oxide to be coated on the surface of the Mai mosquitoes, can be constructed of titanium oxide, iron oxide, tin oxide, silicon oxide, at least one metal oxide selected from aluminum oxide or zirconium oxide, .

  Furthermore, in this invention, it is preferable that the pigment which has luster like the pearl contained in a light-transmitting board | substrate contains 20-80 weight% of mica and 20-60 weight% of a metal or a metal oxide.

  At this ratio, the color tone and luster of mica and the metal color of the metal or metal oxide are combined to give a pearly luster and a metallic luster that is light-transmitting. Can be applied to the conductive substrate.

In the present invention, such mica is not particularly limited. For example, hard mica (Kal ₂ (Si ₃ Al) O ₁₀ ) exhibiting a transparent or light yellow color.
(OH) ₂ ), soft mica with a brown or dark green color (KMlog (Si ₃ Al
) O ₁₀ (OH) ₂ ) can be used.

  In the present invention, the pearly luster pigment contained in the light-transmitting substrate is preferably a pigment in which a metal or metal oxide is coated on the surface of a flake made of aluminum oxide or silicon oxide.

  In this case, the metal coated on the surface of the flakes can be composed of one metal selected from nickel, aluminum, gold, silver, copper, and palladium, or two or more alloy metals of these metals.

In addition, as the metal oxide coated on the surface of the flakes, titanium oxide, iron oxide,
It can be composed of at least one metal oxide selected from tin oxide, silicon oxide, aluminum oxide, or zirconium oxide.

  Furthermore, in the present invention, it is preferable that the pearly luster pigment contained in the light-transmitting substrate contains 40 to 80% by weight of the flakes and 20 to 60% by weight of metal or metal oxide.

  At this ratio, the color tone and luster of the flakes and the metal color of the metal or metal oxide combine to give the luster that has a pearly luster and also has a metallic luster. Can be applied to the conductive substrate.

  In the present invention, the pigment having luster such as pearl desirably has a particle size of 5 to 50 μm.

  In other words, if the particle size of a pigment having a luster like pearl is within such a range, the pigment having a luster like pearl glitters when light enters the base material of the light-transmitting substrate. The light-transmitting substrate can produce a pearly luster with shine.

  Moreover, it is desirable that the light-transmitting substrate contains 0.5 to 5% by weight of a pigment having gloss such as pearl with respect to the base material of the light-transmitting substrate.

  If there is a pearly luster pigment in such a range, when the light enters the base material of the light-transmitting substrate, the pearly luster pigment shines brightly and transmits light. The substrate can bring out a pearly luster with shine.

  Furthermore, in this invention, it is preferable that the base material of a transparent substrate consists of synthetic resins.

  The synthetic resin constituting the base material of such a light-transmitting substrate is at least one selected from polycarbonate resin, acrylic resin, polyacetal resin, ABS resin, polyethylene resin, polypropylene resin, polystyrene resin, or polyethylene terephthalate resin. It is desirable to consist of these resins.

  As described above, by using the synthetic resin as described above as the base material of the light-transmitting substrate, a pigment having gloss such as pearl can be mixed and easily formed by injection molding, etc. It is possible to improve adhesion to the metal film or metal oxide film, surface treatment, moldability, hygroscopicity, and the like.

  Furthermore, in the present invention, it is desirable that the control film formed on the lower surface side of the light-transmitting substrate is composed of ink or paint.

  In this case, it is desirable that the base material of such ink or paint is made of at least one resin selected from alkyd resins, acrylic resins, vinyl chloride resins, urethane resins, polyester resins, or modified resins thereof.

  In this way, the control film can be provided with a color tone by being composed of ink or paint, and the control film can be easily formed on the lower surface side of the light-transmitting substrate by, for example, screen printing. it can.

  Furthermore, in the present invention, it is desirable that the control coating formed on the lower surface side of the light transmissive substrate has a thickness of 5 to 15 μm.

  In such a range, the light transmittance can be adjusted to a predetermined range by adjusting the thickness of the control film.

  In the present invention, it is desirable that the metal film or metal oxide film formed on the upper surface side of the light transmissive substrate has a light refractive index different from that of the light transmissive substrate.

  As described above, the light refractive index of the metal film or metal oxide film formed on the upper surface side of the light transmissive substrate is different from the light refractive index of the light transmissive substrate, so that the color tone varies depending on the viewing angle of the observer. It is possible to provide a display panel for a watch with a very novel design that has never been achieved in the past, with a pearly luster and metal texture.

  In the present invention, it is preferable that the metal film or metal oxide film formed on the upper surface side of the light-transmitting substrate is formed from a single-layer metal film or metal oxide film.

  The metal film or metal oxide film thus formed on the upper surface side of the light-transmitting substrate is formed from a single-layer metal film or metal oxide film, so that this single-layer metal film or metal oxide film is formed. Thus, a metallic texture can be imparted to the watch display plate.

  In this case, it is desirable that the thickness of the single-layer metal film or metal oxide film formed on the upper surface side of the light-transmitting substrate is 300 to 1000 mm.

  If there is a film thickness of a single-layer metal film or metal oxide film in such a range, it has a light transmittance that contributes to the power generation of the solar cell, does not hinder the function of the solar watch itself, The brightness of the backlight from electroluminescence does not decrease, and a metallic texture can be imparted to the watch display plate.

  Furthermore, by changing the film thickness of the single-layer metal film or metal oxide film within such a range, various metal colors can be obtained even with the same single-layer metal film or metal oxide film. And the light transmittance can be changed.

  In the present invention, it is desirable that the metal film or metal oxide film formed on the upper surface side of the light-transmitting substrate is formed by laminating a plurality of metal films or metal oxide films.

  By forming the metal film or metal oxide film thus formed on the upper surface side of the light-transmitting substrate from a plurality of layers of metal film or metal oxide film, each metal film or metal oxide film has Combining the metal texture, it is possible to impart an unprecedented novel metal texture to the watch display board.

  In this case, it is desirable that such multiple layers of metal coatings or metal oxide coatings have different optical refractive indices.

  As described above, the optical refractive index of each of the multi-layered metal coating or the metal oxide coating is different, so that the different color tone of the metal coating or the metal oxide coating, such as pearl, depending on the viewing angle of the observer. It is possible to provide a display panel for a watch that has a glossy and metallic texture and has an extremely novel design that has never been seen before.

  In this case, the thickness of each of the plurality of laminated metal films or metal oxide films formed on the upper surface side of the light-transmitting substrate is 100 to 1500 mm, preferably 300 to 1000 mm.

  If there is a thickness of each of a plurality of laminated metal films or metal oxide films in such a range, it has a light transmittance that contributes to the power generation of the solar cell, and may hinder the function of the solar watch itself. In addition, the brightness of the backlight from electroluminescence does not decrease, and a metallic texture can be imparted to the watch display plate.

  Further, by changing the film thickness of the plurality of stacked metal films or metal oxide films within such a range, various metals can be used even if the same plurality of stacked metal films or metal oxide films are used. Color can be obtained, and the light transmittance can also be changed.

  In this case, the metal film formed on the upper surface side of the light transmissive substrate is selected from Au, Ag, Al, Cu, Co, Cr, Fe, In, Ni, Pd, Pt, Rh, Sn, and Ti. It is possible to make up from one kind of metal or two or more kinds of alloy metals of these metals.

  As a result, various metallic textures can be imparted to the watch display board, and design variations can be greatly expanded.

  Further, the metal oxide film formed on the upper surface side of the light-transmitting substrate is composed of at least one metal oxide selected from silicon oxide, titanium oxide, zirconium oxide, aluminum oxide, iron oxide, and tin oxide. be able to.

  As a result, various metallic textures can be imparted to the watch display board, and design variations can be greatly expanded.

  In the present invention, it is preferable that the metal film or metal oxide film formed on the upper surface side of the light-transmitting substrate is formed by dry plating, for example, vapor deposition, sputtering, or ion plating.

  Thus, by using vapor deposition, sputtering, or ion plating which is a dry plating process which is a physical method, a resin constituting a base material of a light-transmitting substrate which is a non-conductor compared to wet plating or the like Can be easily applied to the film, especially processing on only one side, and at the same time, precise film thickness control and mass production with good reproducibility are possible by film formation while monitoring the film thickness. It becomes.

  According to the present invention, the effect of the pigment having gloss like pearl contained in the light-transmitting substrate gives a shine like pearl, and the color tone is adjusted by the control film formed on the back surface of the display panel. In addition, the metal film or metal oxide film formed on the upper surface side of the light-transmitting substrate gives a metal texture, and through these combined actions, there is an unprecedented color change, metal texture, and light. It is possible to provide a display panel for a watch that has an extremely high-class feeling and design variation, and that can improve the merchantability.

  In addition, in this case, the timepiece display board can ensure that the solar cell or electroluminescence disposed on the back surface of the timepiece display board is not visible from the display board side and has a predetermined light transmittance. It has light transmittance that contributes to the power generation of the solar cell, does not hinder the function of the solar watch itself, does not stop the watch from operating and stops at all times, and shields the electroluminescence illumination light for backlight illumination As a result, the illumination level does not decrease.

  Hereinafter, embodiments (examples) of the present invention will be described in more detail with reference to the drawings.

  FIG. 1 is a cross-sectional view of a wristwatch in which the timepiece display plate of the present invention is applied to a solar timepiece, FIG. 2 is a cross-sectional view of a solar timepiece display plate structure to which the timepiece display plate of the present invention is applied, and FIG. It is an enlarged view of the I section of FIG.

  As shown in FIG. 1, a module 4 is fixed via a support frame 3 made of synthetic resin fitted inside the outer shell 2, and a display panel structure A for a solar timepiece is configured on the front side of the module 4. ing. Further, the needle shaft 5 of the double shaft configuration provided in the module 4 is passed through the central hole A1 formed in the solar watch display plate structure A, and the outer shaft 5a of the needle shaft 5 is connected to the outer shaft 5a. The hour hand 6 and the minute hand 7 are attached to the inner shaft 5b. Furthermore, by attaching a back cover 9 via a waterproof packing 8 to the bottom side of the outer cylinder 2, and attaching a windshield glass 10 via a waterproof ring (Teflon (registered trademark) resin) to the front side of the outer cylinder 2, A wristwatch 1 is configured.

  As shown in FIG. 2, the solar clock display board structure A basically includes a solar cell 11 fixed on the front side of the module 4 and a clock display board provided on the front side of the solar cell 11. (It is the same in the following embodiments).

  In the following examples, all the examples in which the timepiece display panel of the present invention is applied to a solar timepiece will be described. However, instead of the solar cell 11, a backlight with an electroluminescence for backlight illumination is provided. The present invention can also be applied to a timepiece or a timepiece having both a solar cell and electroluminescence.

  As shown in FIGS. 2 and 3, the timepiece display board B includes a light-transmitting substrate (dial plate base material) 12 made of a resin capable of transmitting light, and a lower surface side of the light-transmitting substrate 12 (solar The control film 13 is formed on the cell 11 side) 12a, and the metal film or the metal oxide film 14 is formed on the upper surface side (opposite side of the solar cell 11) 12b of the light-transmitting substrate 12.

  The surface of the metal film or metal oxide film 14 is formed with a predetermined printing / time character 30 by printing, or by attaching a marking member made by electroforming or by mounting by caulking. (In the following embodiments, the print / time character 30 is not particularly mentioned, but in any embodiment, it is provided in the uppermost layer). Further, the solar cell 11 has a fan shape in a plan view, similar to that shown in FIG. 8 of the conventional example, and the solar cells 11 are arranged with four insulating bands interposed therebetween.

  Such a light-transmitting substrate 12 preferably has a base material 15 made of a synthetic resin.

  The synthetic resin constituting the base material of such a light-transmitting substrate is at least one selected from polycarbonate resin, acrylic resin, polyacetal resin, ABS resin, polyethylene resin, polypropylene resin, polystyrene resin, or polyethylene terephthalate resin. It is desirable to consist of these resins.

  Such a light-transmitting substrate 12 may be formed by injection molding and manufactured by extruding to a predetermined dimension corresponding to the wristwatch size, and the thickness thereof is 300 to 500 μm. preferable.

Further, as the light-transmitting substrate 12, a so-called polymer alloy blended with other kinds of resins may be used. For example, polycarbonate resin, acrylic resin, polyacetal resin, ABS resin, polyethylene resin, polypropylene resin, polystyrene resin, or polyethylene A polymer alloy obtained by combining at least two kinds of resins selected from terephthalate resins can be used.

  In this case, the proportion of the resin blend is not particularly limited and can be appropriately changed in consideration of formability, surface treatment properties such as metal plating, hygroscopicity, and the like. When the resin is used and the ABS resin is used as the auxiliary resin, the surface treatment property, moldability, etc. of the ABS resin will be manifested. Etc. can be appropriately changed.

  As such a polymer alloy, for example, “Dialoy (trade name)” manufactured by Mitsubishi Rayon Co., Ltd. can be used. In this case as well, it may be formed by injection molding and made by removing the outer shape into a predetermined dimension corresponding to the wristwatch size, and the thickness is preferably 300 to 500 μm.

  By using such a polymer alloy, it is possible to improve adhesion between the control coating 13 and the metal coating or metal oxide coating 14, surface treatment, moldability, hygroscopicity, and the like.

  In this case, as shown in FIG. 3, the base material 15 of the light transmissive substrate 12 includes a pigment 16 having gloss like pearl contained in the light transmissive substrate 12. The pigment 16 is dispersed in the base material 15 of the light transmissive substrate 12.

As such a pigment 16, as shown in FIG. 4, it is preferable to My mosquito (mica) metal or metal oxide 18 on the surface 17 of the core of the pigment 16 is composed of a pigment 16 which is coated.

Such mica 17 is not particularly limited, but is, for example, hard mica (Kal ₂ (Si ₃ Al) O ₁₀ (OH) ₂ ), brown or dark green that exhibits a transparent or light yellow color. Soft mica (KMg (Si ₃ Al) O ₁₀ (OH) ₂ ) exhibiting the following can be used.

In this case, as the metal 18 covering the surface of my mosquito 17, nickel, aluminum, gold, silver, copper, one metal selected from palladium or two or more of alloying metal of these metals, Can be configured.

  For example, examples of binary alloys include Au-Ag, Au-Cu, Au-Ni, Ag-Pd, Au-Al, Cu-Al, Au-Cr, Au-Co, Au-In, and Pd-Ni. As the ternary alloy, Au—Cu—Pd, Au—Ag—Cu, Au—In—Co, or the like can be used. Thus, by using a binary alloy or a ternary alloy, it becomes possible to have various metal colors that are not found in a single metal, and design variations are expanded. For example, in the case of Au—Ag, the color is yellow gold, and in the case of an Au—Cu alloy, the color is red gold.

The metal oxide 18 covering the surface of my mosquito 17, titanium oxide, iron oxide, tin oxide, silicon oxide, be composed of at least one metal oxide selected from aluminum oxide or zirconium oxide, Can do.

Furthermore, it is preferable that the pigment 16 having a pearly luster contained in the light-transmitting substrate 12 contains 40 to 80% by weight of mica 17 and 20 to 60% by weight of metal or metal oxide 18.

  With such a ratio, the color tone and luster of the mica 17 and the metal color of the metal or metal oxide 18 combine to give a pearly luster and a metallic luster. It can be applied to the light transmissive substrate 12.

  Further, as schematically shown in FIG. 5, as the pigment 16 having a pearly luster contained in the light-transmitting substrate 12, a metal or metal is formed on the surface of a flake (thin piece) 19 made of aluminum oxide or silicon oxide. It is preferably composed of the pigment 16 coated with the oxide 20.

  In this case, the metal 20 coated on the surface of the flake 19 may be composed of one kind of metal selected from nickel, aluminum, gold, silver, copper and palladium, or two or more alloy metals of these metals. it can.

  For example, examples of binary alloys include Au-Ag, Au-Cu, Au-Ni, Ag-Pd, Au-Al, Cu-Al, Au-Cr, Au-Co, Au-In, and Pd-Ni. As the ternary alloy, Au—Cu—Pd, Au—Ag—Cu, Au—In—Co, or the like can be used. Thus, by using a binary alloy or a ternary alloy, it becomes possible to have various metal colors that are not found in a single metal, and design variations are expanded. For example, in the case of Au—Ag, the color is yellow gold, and in the case of an Au—Cu alloy, the color is red gold.

  The metal oxide 20 coated on the surface of the flake 19 is composed of at least one metal oxide selected from titanium oxide, iron oxide, tin oxide, silicon oxide, aluminum oxide, or zirconium oxide. be able to.

In this case, as shown in FIG. 6A, by changing the film thickness of the metal oxide 20 using Fe ₂ O ₃ as Al ₂ O ₃ and the metal oxide 20, the copper color is changed to red. The color tone can be changed freely.

Further, as shown in FIG. 6B, the film thickness of each metal oxide 20 using a two-layer structure of Al ₂ O ₃ as the flake 19 and SnO ₂ and TiO ₂ as the metal oxide 20. By changing the color tone, it is possible to freely change the color tone from silver, gold, red, blue to green.

Further, as shown in FIG. 6C, by using SiO ₂ as the flake 19 and Fe ₂ O ₃ as the metal oxide 20, a color tone changing from red to green depending on the viewing angle can be obtained.

Further, as shown in FIG. 6D, as the flakes 19, SiO ₂ , metal oxide 20
As described above, by using a two-layer structure of SnO ₂ and TiO ₂ , a color tone that changes from purple to green depending on the viewing angle can be obtained.

  Furthermore, it is preferable that the pigment 16 having luster such as pearl contained in the light-transmitting substrate 12 contains 40 to 80 wt% of flakes 19 and 20 to 60 wt% of metal or metal oxide 20.

With such a ratio, the color tone and gloss of the flakes 19 and the metal color of the metal or metal oxide 20 are combined to give a pearly luster and a metallic luster. It can be applied to a light transmissive substrate.

  In the present invention, it is desirable that the pigment 16 having luster like pearl has a particle diameter of 5 to 50 μm.

  That is, if the particle size of the pigment 16 having a pearly luster is in such a range, the pigment 16 having a pearly luster when light enters the base material 15 of the light-transmitting substrate 12. Glitteringly shines, and the light-transmitting substrate 12 can create a pearly luster with shine.

  Further, it is desirable that the light-transmitting substrate 12 contains 0.5 to 5% by weight of the pigment 16 having a gloss like pearl with respect to the base material 15 of the light-transmitting substrate 12.

  If the pigment 16 having pearly luster is in such a range, when the light enters the base material 15 of the light-transmitting substrate 12, the pearly luster pigment 16 shines brightly. The light-transmitting substrate can give off a pearly luster with shine.

  Such a light-transmitting substrate 12 can be manufactured by molding a synthetic resin constituting the pellet-shaped base material 15 and a pigment 16 having a gloss like pearl by injection molding. .

  The light-transmitting substrate 12 may contain ordinary pigments and dyes in the base material 15 itself of the light-transmitting substrate 12 in addition to the pigment 16 having gloss like pearl. Such pigments and dyes are not particularly limited, but may include titanium oxide as a white pigment, bengara (ferric oxide) as a red pigment, and the like. As a ratio of such a raw material, it is preferable to include 0.5 to 3.5% by weight with respect to the base material 15 of the light transmissive substrate 12.

  On the other hand, it is desirable that the control film 13 formed on the lower surface side 12a of the light-transmitting substrate 12 is made of ink or paint.

  In this case, it is desirable that the base material of such ink or paint is made of at least one resin selected from alkyd resins, acrylic resins, vinyl chloride resins, urethane resins, polyester resins, or modified resins thereof.

  Thus, the control film 13 can be provided with a color tone by being composed of ink or paint, and the control film 13 can be easily formed on the lower surface side of the light-transmitting substrate 12 by, for example, screen printing. can do.

  Further, the control coating 13 formed on the lower surface side of the light transmissive substrate 12 is desirably 5 to 15 μm in thickness.

  In such a range, by adjusting the thickness of the control coating 13, the light transmittance contributes to the power generation of the solar cell 11, and the brightness of the backlight from the electroluminescence does not decrease. Can be adjusted within the range.

  On the other hand, it is desirable that the metal film or metal oxide film 14 formed on the upper surface side 12 b of the light transmissive substrate 12 has a light refractive index different from the light refractive index of the light transmissive substrate 12.

Thus, the viewing angle of the observer is different because the light refractive index of the metal film or metal oxide film 14 formed on the upper surface side 12b of the light transmissive substrate 12 and the light refractive index of the light transmissive substrate 12 are different. Depending on the color, the color tone, pearly luster, and metal texture can be provided, and a clock display board with an extremely novel design that has never been possible before can be provided.

  Further, the metal film or metal oxide film 14 formed on the upper surface side 12b of the light-transmitting substrate 12 can be formed from a single-layer metal film or metal oxide film 14 as shown in FIG. .

  Thus, the metal film or metal oxide film 14 formed on the upper surface side 12b of the light-transmitting substrate 12 is formed from a single-layer metal film or metal oxide film, whereby this single-layer metal film or metal A metal texture can be imparted to the watch display plate by the oxide coating 14.

  In this case, it is desirable that the thickness of the single-layer metal film or metal oxide film 14 formed on the upper surface 12b of the light-transmitting substrate 12 is 300 to 1000 mm.

  If the film thickness of the single layer metal film or metal oxide film is in such a range, it has a light transmittance that contributes to the power generation of the solar cell 11 and does not hinder the function of the solar timepiece itself. Further, the brightness of the backlight from electroluminescence does not decrease, and a metallic texture can be imparted to the watch display plate.

  Furthermore, by changing the film thickness of the single-layer metal film or metal oxide film 14 within such a range, various metal colors can be obtained even with the same single-layer metal film or metal oxide film 14. Can be obtained, and the light transmittance can also be changed.

  Further, as shown in FIG. 7, the metal film or metal oxide film 14 formed on the upper surface 12b of the light transmissive substrate 12 is formed by laminating a plurality of layers of metal films or metal oxide films 14a and 14b. You can also. In the embodiment of FIG. 7, the metal film or metal oxide film 14 is formed by laminating two layers of metal films or metal oxide films 14a and 14b, but this number can be changed as appropriate.

  Thus, by forming the metal film or metal oxide film 14 formed on the upper surface 12b of the light transmissive substrate 12 from a plurality of layers of metal films or metal oxide films 14a and 14b, By combining the metal texture of the metal oxide film, it is possible to impart an unprecedented novel metal texture to the timepiece display plate.

  In this case, it is desirable that such multiple layers of metal coatings or metal oxide coatings 14a and 14b have different optical refractive indices.

  As described above, since the optical refractive indexes of the metal coatings or the metal oxide coatings 14a and 14b of the plurality of layers are different, depending on the viewing angle of the observer, the different color tone or pearl of the metal coating or the metal oxide coating. Thus, it is possible to provide a display panel for a watch with an extremely novel design that has never been achieved.

  In this case, the thickness of each of the plurality of laminated metal films or metal oxide films 14a and 14b formed on the upper surface side of the light-transmitting substrate 12 is 100 to 1500 mm, preferably 300 to 1000 mm. Is desirable.

If the thickness of each of the plurality of laminated metal films or metal oxide films 14a and 14b is within such a range, it has a light transmittance that contributes to the power generation of the solar cell and inhibits the function of the solar watch itself. In addition, the brightness of the backlight from electroluminescence does not decrease, and a metallic texture can be imparted to the watch display plate.

  Furthermore, even if it is the same several laminated | stacked metal film or metal oxide film by changing the film thickness of several laminated | stacked metal film or metal oxide film 14a, 14b in such a range, Various metal colors can be obtained, and the light transmittance can be changed.

  Further, in this case, as the metal coating 14 formed on the upper surface side 12b of the light transmissive substrate 12, Au, Ag, Al, Cu, Co, Cr, Fe, In, Ni, Pd, Pt, Rh, Sn, Ti It can comprise from the 1 type of metal selected from these, or 2 or more types of alloy metals of these metals.

  For example, examples of binary alloys include Au-Ag, Au-Cu, Au-Ni, Ag-Pd, Au-Al, Cu-Al, Au-Cr, Au-Co, Au-In, and Pd-Ni. As the ternary alloy, Au—Cu—Pd, Au—Ag—Cu, Au—In—Co, or the like can be used. Thus, by using a binary alloy or a ternary alloy, it becomes possible to have various metal colors that are not found in a single metal, and design variations are expanded. For example, in the case of Au—Ag, the color is yellow gold, and in the case of an Au—Cu alloy, the color is red gold.

  As a result, various metallic textures can be imparted to the watch display board, and design variations can be greatly expanded.

  Furthermore, at least one metal oxide selected from silicon oxide, titanium oxide, zirconium oxide, aluminum oxide, iron oxide, and tin oxide is used as the metal oxide film 14 formed on the upper surface 12b of the light transmissive substrate 12. It can consist of

  As a result, various metallic textures can be imparted to the watch display board, and design variations can be greatly expanded.

  Further, it is desirable that the metal film or metal oxide film 14 formed on the upper surface side 12b of the light transmissive substrate 12 is formed by dry plating, for example, vapor deposition, sputtering, or ion plating.

  In this way, by using vapor deposition, sputtering, or ion plating which is a dry plating process which is a physical method, the base material 15 of the light-transmitting substrate 12 which is a non-conductor is formed compared to wet plating or the like. The film can be easily applied to the resin to be processed, especially the processing on only one side, and at the same time, the film thickness is precisely controlled by film formation while monitoring the film thickness and mass production with good reproducibility. Is possible.

  According to the timepiece display panel configured as described above, the effect of the pigment 16 having a pearly luster contained in the light-transmitting substrate 12 provides a pearly light shine, and the lower surface of the display board. The color tone is adjusted by the control film 13 formed on the side 12a, and the metal film or metal oxide film 14 formed on the upper surface side 12b of the light-transmitting substrate 12 gives a metal texture. A clock display board that brings out an unprecedented color change, metal texture, brightness of light, etc., thanks to its comprehensive action, is extremely high-quality, has excellent design variations, and has an appearance quality that can enhance the merchantability. Can be provided.

In addition, in this case, the watch display plate can ensure that a solar cell or electroluminescence disposed on the back surface of the watch display plate is not visible from the display plate side and has a predetermined light transmittance. It has light transmittance that contributes to the power generation of the solar cell, does not hinder the function of the solar watch itself, and does not stop and operate the watch at all times, shielding the electroluminescence illumination light for backlight illumination As a result, the illumination level does not decrease.

A polycarbonate resin is used as the resin of the base material 15 of the light-transmitting substrate 12, and mica or flakes (aluminum oxide (Al ₂
The surface of O ₃ )) is coated with iron oxide (Fe ₂ O ₃ ) at a ratio of about 70% by weight to about 30% by weight, and the pigment particle size is 5 μm to 50 μm (color tone: red color tone), The light transmissive substrate 12 was produced by injection molding such that the pigment content was 2 wt% to 3.5 wt% with respect to the resin.

  As shown in FIG. 3, a vacuum is applied to the upper surface side 12b of the light-transmitting substrate 12 so that the metal oxide film 14 has a single layer structure and a film thickness of 300 to 600 mm. It was coated by vapor deposition (color tone: silver color tone).

  Then, a white color ink (titanium oxide) was formed on the lower surface side 12a of the light-transmitting substrate 12 by screen printing so that the film thickness was 8 to 12 μm, thereby producing a watch display plate.

  The clock display board thus obtained has a pink reddish silver metallic luster, and has a novel design with a pearl-like luster, giving it a luxury watch display board. It was.

  In addition, when this watch display plate is used in a solar watch, the solar cell existing below the display plate, the crosshair of the insulator, etc. are not seen through, and the light transmittance contributing to the power generation of the solar cell It had 20-40% and did not inhibit the function of the solar watch itself.

  Also, since it has such light transmittance, when this watch display board is used in a watch incorporating electroluminescence for backlight illumination, the illumination intensity of electroluminescence illumination light for backlight illumination is reduced. I didn't.

As the resin of the base material 15 of the light transmitting substrate 12, using a polycarbonate resin, a pigment 16 with a gloss like pearls, as shown in FIG. 6 (B), flake (aluminum oxide (Al ₂ O ₃ )) Surface is coated with a two-layer structure of tin oxide (SnO ₂ ) and titanium oxide (TiO ₂ ) at a ratio of about 70% by weight to about 30% by weight, and the particle size of the pigment is 5 μm to 50 μm The light transmissive substrate 12 was produced by injection molding (color tone: silver color tone) such that the pigment content was 2 wt% to 3.5 wt% with respect to the resin.

  As shown in FIG. 3, a vacuum is applied to the upper surface side 12b of the light-transmitting substrate 12 so that the metal oxide film 14 has a single layer structure and a film thickness of 300 to 600 mm. It was coated by vapor deposition (color tone: silver color tone).

  Then, a white color ink (titanium oxide) was formed on the lower surface side 12a of the light-transmitting substrate 12 by screen printing so that the film thickness was 8 to 12 μm, thereby producing a watch display plate.

The clock display board obtained in this way has a silver-based metallic luster like silver-plated metal, and has a novel design with a pearly luster. Obtained.

  In addition, when this watch display plate is used in a solar watch, the solar cell existing below the display plate, the crosshair of the insulator, etc. are not seen through, and the light transmittance contributing to the power generation of the solar cell It had 20-40% and did not inhibit the function of the solar watch itself.

  Also, since it has such light transmittance, when this watch display board is used in a watch incorporating electroluminescence for backlight illumination, the illumination intensity of electroluminescence illumination light for backlight illumination is reduced. I didn't.

As the resin of the base material 15 of the light transmitting substrate 12, using a polycarbonate resin, a pigment 16 with a gloss like pearls, as shown in FIG. 6 (B), flake (aluminum oxide (Al ₂ O ₃ )) Surface is coated with a two-layer structure of tin oxide (SnO ₂ ) and titanium oxide (TiO ₂ ) at a ratio of about 70% by weight to about 30% by weight, and the particle size of the pigment is 5 μm to 50 μm The light transmissive substrate 12 was produced by injection molding (color tone: silver color tone) such that the pigment content was 2 wt% to 3.5 wt% with respect to the resin.

  As shown in FIG. 3, a vacuum is applied to the upper surface side 12b of the light-transmitting substrate 12 so that the metal oxide film 14 has a single layer structure, and the film thickness is 300 to 600 mm. It was coated by vapor deposition (color tone: silver color tone).

  Then, a cream-colored ink was formed on the lower surface side 12a of the light-transmitting substrate 12 by screen printing so as to have a film thickness of 8 to 12 μm, thereby producing a watch display plate.

  The clock display board obtained in this way has a silver-based metallic luster like a slightly yellowish and soft silver-plated metal, and has a novel design with a pearly luster. A high-quality watch display board was obtained.

  In addition, when this watch display plate is used in a solar watch, the solar cell existing below the display plate, the crosshair of the insulator, etc. are not seen through, and the light transmittance contributing to the power generation of the solar cell It had 20-40% and did not inhibit the function of the solar watch itself.

  Also, since it has such light transmittance, when this watch display board is used in a watch incorporating electroluminescence for backlight illumination, the illumination intensity of electroluminescence illumination light for backlight illumination is reduced. I didn't.

As a resin for the base material 15 of the light-transmitting substrate 12, an acrylic resin (a pink one containing 0.5 to 3.5% by weight of bengara) is used as a pigment 16 having a pearly luster, As shown in FIG. 6D, a two-layer structure of tin oxide (SnO ₂ ) and titanium oxide (TiO ₂ ) is formed on the surface of the flake (silicon oxide (SiO ₂ )) at about 60% by weight: about 40%. A pigment having a pigment particle size of 5 μm to 50 μm (color tone: a color tone changing from purple to green depending on the viewing angle) is coated at a ratio of wt%, and the pigment content is 2 wt% to 3.5 wt% with respect to the resin. The light-transmitting substrate 12 was produced by injection molding so that the weight percentage was reached.

  As shown in FIG. 3, a vacuum is applied to the upper surface side 12b of the light-transmitting substrate 12 so that the metal oxide film 14 has a single layer structure, and the film thickness is 300 to 600 mm. It was coated by vapor deposition (color tone: silver color tone).

  Then, a white color ink (titanium oxide) was formed on the lower surface side 12a of the light-transmitting substrate 12 by screen printing so that the film thickness was 8 to 12 μm, thereby producing a watch display plate.

  The clock display board thus obtained has a novel metallic design with a silver-like metallic luster like a light pastel silver-plated metal with a pink color and a pearl-like luster. A high-quality watch display board was obtained.

  In addition, when this watch display plate is used in a solar watch, the solar cell existing below the display plate, the crosshair of the insulator, etc. are not seen through, and the light transmittance contributing to the power generation of the solar cell It had 20-40% and did not inhibit the function of the solar watch itself.

  Also, since it has such light transmittance, when this watch display board is used in a watch incorporating electroluminescence for backlight illumination, the illumination intensity of electroluminescence illumination light for backlight illumination is reduced. I didn't.

A polycarbonate resin is used as the resin of the base material 15 of the light-transmitting substrate 12, and mica or flakes (aluminum oxide (Al ₂
The surface of O ₃ )) is coated with iron oxide (Fe ₂ O ₃ ) at a ratio of about 70% by weight to about 30% by weight, and the pigment particle size is 5 μm to 50 μm (color tone: red color tone), The light transmissive substrate 12 was produced by injection molding such that the pigment content was 2 wt% to 3.5 wt% with respect to the resin.

  As shown in FIG. 7, on the upper surface side 12b of the light-transmitting substrate 12, silicon oxide and zirconium oxide are formed on the surface of the silicon oxide so that the metal oxide film 14 has a two-layer structure. The film was coated by vacuum vapor deposition so that the thickness became 300 to 600 mm (color tone: silver color tone).

  Then, a white color ink (titanium oxide) was formed on the lower surface side 12a of the light-transmitting substrate 12 by screen printing so that the film thickness was 8 to 12 μm, thereby producing a watch display plate.

  The clock display board thus obtained has a pink reddish silver metallic luster, and has a novel design with a pearl-like luster, giving it a luxury watch display board. It was.

  In addition, when this watch display plate is used in a solar watch, the solar cell existing below the display plate, the crosshair of the insulator, etc. are not seen through, and the light transmittance contributing to the power generation of the solar cell It had 20-40% and did not inhibit the function of the solar watch itself.

  Also, since it has such light transmittance, when this watch display board is used in a watch incorporating electroluminescence for backlight illumination, the illumination intensity of electroluminescence illumination light for backlight illumination is reduced. I didn't.

As a resin of the base material 15 of the light-transmitting substrate 12, polycarbonate resin is used, and the pigment 16 having luster like pearl is used as flakes (aluminum oxide (Al ₂ O ₃ ) as shown in FIG. 6B. )) Is coated with a two-layer structure of tin oxide (SnO ₂ ) and titanium oxide (TiO ₂ ) at a ratio of about 70% by weight to about 30% by weight, and the particle size of the pigment is 5 μm to 50 μm The light transmissive substrate 12 was produced by injection molding (color tone: silver color tone) such that the pigment content was 2 wt% to 3.5 wt% with respect to the resin.

  As shown in FIG. 7, on the upper surface side 12b of the light-transmitting substrate 12, silicon oxide and zirconium oxide are formed on the surface of the silicon oxide so that the metal oxide film 14 has a two-layer structure. The film was coated by vacuum vapor deposition so that the thickness became 300 to 600 mm (color tone: silver color tone).

  Then, a white color ink (titanium oxide) was formed on the lower surface side 12a of the light-transmitting substrate 12 by screen printing so that the film thickness was 8 to 12 μm, thereby producing a watch display plate.

  The clock display board obtained in this way has a silver-based metallic luster like silver-plated metal, and has a novel design with a pearly luster. Obtained.

  In addition, when this watch display plate is used in a solar watch, the solar cell existing below the display plate, the crosshair of the insulator, etc. are not seen through, and the light transmittance contributing to the power generation of the solar cell It had 20-40% and did not inhibit the function of the solar watch itself.

  Also, since it has such light transmittance, when this watch display board is used in a watch incorporating electroluminescence for backlight illumination, the illumination intensity of electroluminescence illumination light for backlight illumination is reduced. I didn't.

As the resin of the base material 15 of the light transmitting substrate 12, using a polycarbonate resin, a pigment 16 with a gloss like pearls, as shown in FIG. 6 (B), flake (aluminum oxide (Al ₂ O ₃ )) Surface is coated with a two-layer structure of tin oxide (SnO ₂ ) and titanium oxide (TiO ₂ ) at a ratio of about 70% by weight to about 30% by weight, and the particle size of the pigment is 5 μm to 50 μm The light transmissive substrate 12 was produced by injection molding (color tone: silver color tone) such that the pigment content was 2 wt% to 3.5 wt% with respect to the resin.

  As shown in FIG. 7, on the upper surface side 12b of the light-transmitting substrate 12, silicon oxide and zirconium oxide are formed on the surface of the silicon oxide so that the metal oxide film 14 has a two-layer structure. The film was coated by vacuum vapor deposition so that the thickness became 300 to 600 mm (color tone: silver color tone).

  Then, a cream-colored ink was formed on the lower surface side 12a of the light-transmitting substrate 12 by screen printing so as to have a film thickness of 8 to 12 μm, thereby producing a watch display plate.

  The clock display board obtained in this way has a silver-based metallic luster like a slightly yellowish and soft silver-plated metal, and has a novel design with a pearly luster. A high-quality watch display board was obtained.

  In addition, when this watch display plate is used in a solar watch, the solar cell existing below the display plate, the crosshair of the insulator, etc. are not seen through, and the light transmittance contributing to the power generation of the solar cell It had 20-40% and did not inhibit the function of the solar watch itself.

  Also, since it has such light transmittance, when this watch display board is used in a watch incorporating electroluminescence for backlight illumination, the illumination intensity of electroluminescence illumination light for backlight illumination is reduced. I didn't.

As a resin for the base material 15 of the light-transmitting substrate 12, an acrylic resin (a pink one containing 0.5 to 3.5% by weight of bengara) is used as a pigment 16 having a pearly luster, As shown in FIG. 6D, a two-layer structure of tin oxide (SnO ₂ ) and titanium oxide (TiO ₂ ) is formed on the surface of the flake (silicon oxide (SiO ₂ )) at about 60% by weight: about 40%. A pigment having a pigment particle size of 5 μm to 50 μm (color tone: a color tone changing from purple to green depending on the viewing angle) is coated at a ratio of wt%, and the pigment content is 2 wt% to 3.5 wt% with respect to the resin. The light-transmitting substrate 12 was produced by injection molding so that the weight percentage was reached.

  As shown in FIG. 7, on the upper surface side 12b of the light-transmitting substrate 12, silicon oxide and zirconium oxide are formed on the surface of the silicon oxide so that the metal oxide film 14 has a two-layer structure. The film was coated by vacuum vapor deposition so that the thickness became 300 to 600 mm (color tone: silver color tone).

  Then, a white color ink (titanium oxide) was formed on the lower surface side 12a of the light-transmitting substrate 12 by screen printing so that the film thickness was 8 to 12 μm, thereby producing a watch display plate.

  The clock display board thus obtained has a novel metallic design with a silver-like metallic luster like a light pastel silver-plated metal with a pink color and a pearl-like luster. A high-quality watch display board was obtained.

  In addition, when this watch display plate is used in a solar watch, the solar cell existing below the display plate, the crosshair of the insulator, etc. are not seen through, and the light transmittance contributing to the power generation of the solar cell It had 20-40% and did not inhibit the function of the solar watch itself.

  Also, since it has such light transmittance, when this watch display board is used in a watch incorporating electroluminescence for backlight illumination, the illumination intensity of electroluminescence illumination light for backlight illumination is reduced. I didn't.

A polycarbonate resin is used as the resin of the base material 15 of the light-transmitting substrate 12, and mica or flakes (aluminum oxide (Al ₂
The surface of O ₃ )) is coated with iron oxide (Fe ₂ O ₃ ) at a ratio of about 70% by weight to about 30% by weight, and the pigment particle size is 5 μm to 50 μm (color tone: red color tone), The light transmissive substrate 12 was produced by injection molding such that the pigment content was 2 wt% to 3.5 wt% with respect to the resin.

  As shown in FIG. 3, the upper surface side 12b of the light-transmitting substrate 12 is coated with aluminum by vacuum deposition so that the metal film 14 has a single-layer structure so that the film thickness becomes 100 mm. Color: Silver color).

  Then, a white color ink (titanium oxide) was formed on the lower surface side 12a of the light-transmitting substrate 12 by screen printing so that the film thickness was 8 to 12 μm, thereby producing a watch display plate.

  The clock display board thus obtained has a pink reddish silver metallic luster, and has a novel design with a pearl-like luster, giving it a luxury watch display board. It was.

  In addition, when this watch display plate is used in a solar watch, the solar cell existing below the display plate, the crosshair of the insulator, etc. are not seen through, and the light transmittance contributing to the power generation of the solar cell It had 20-40% and did not inhibit the function of the solar watch itself.

  Also, since it has such light transmittance, when this watch display board is used in a watch incorporating electroluminescence for backlight illumination, the illumination intensity of electroluminescence illumination light for backlight illumination is reduced. I didn't.

As the resin of the base material 15 of the light transmitting substrate 12, using a polycarbonate resin, a pigment 16 with a gloss like pearls, as shown in FIG. 6 (B), flake (aluminum oxide (Al ₂ O ₃ )) Surface is coated with a two-layer structure of tin oxide (SnO ₂ ) and titanium oxide (TiO ₂ ) at a ratio of about 70% by weight to about 30% by weight, and the particle size of the pigment is 5 μm to 50 μm The light transmissive substrate 12 was produced by injection molding (color tone: silver color tone) such that the pigment content was 2 wt% to 3.5 wt% with respect to the resin.

  As shown in FIG. 3, the upper surface 12b of the light-transmitting substrate 12 is coated with aluminum by vacuum vapor deposition so that the film thickness is 100 mm so that the metal film 14 has a single layer structure. Color: Silver color).

  Then, a white color ink (titanium oxide) was formed on the lower surface side 12a of the light-transmitting substrate 12 by screen printing so that the film thickness was 8 to 12 μm, thereby producing a watch display plate.

  The clock display board obtained in this way has a silver-based metallic luster like silver-plated metal, and has a novel design with a pearly luster. Obtained.

  In addition, when this watch display plate is used in a solar watch, the solar cell existing below the display plate, the crosshair of the insulator, etc. are not seen through, and the light transmittance contributing to the power generation of the solar cell It had 20-40% and did not inhibit the function of the solar watch itself.

  Also, since it has such light transmittance, when this watch display board is used in a watch incorporating electroluminescence for backlight illumination, the illumination intensity of electroluminescence illumination light for backlight illumination is reduced. I didn't.

As the resin of the base material 15 of the light transmitting substrate 12, using a polycarbonate resin, a pigment 16 with a gloss like pearls, as shown in FIG. 6 (B), flake (aluminum oxide (Al ₂ O ₃ )) Surface is coated with a two-layer structure of tin oxide (SnO ₂ ) and titanium oxide (TiO ₂ ) at a ratio of about 70% by weight to about 30% by weight, and the particle size of the pigment is 5 μm to 50 μm The light transmissive substrate 12 was produced by injection molding (color tone: silver color tone) such that the pigment content was 2 wt% to 3.5 wt% with respect to the resin.

  As shown in FIG. 3, the upper surface side 12b of the light-transmitting substrate 12 is coated with aluminum by vacuum deposition so that the metal film 14 has a single-layer structure so that the film thickness becomes 100 mm. Color: Silver color).

  Then, a cream-colored ink was formed on the lower surface side 12a of the light-transmitting substrate 12 by screen printing so as to have a film thickness of 8 to 12 μm, thereby producing a watch display plate.

  The clock display board obtained in this way has a silver-based metallic luster like a slightly yellowish and soft silver-plated metal, and has a novel design with a pearly luster. A high-quality watch display board was obtained.

  In addition, when this watch display plate is used in a solar watch, the solar cell existing below the display plate, the crosshair of the insulator, etc. are not seen through, and the light transmittance contributing to the power generation of the solar cell It had 20-40% and did not inhibit the function of the solar watch itself.

  Also, since it has such light transmittance, when this watch display board is used in a watch incorporating electroluminescence for backlight illumination, the illumination intensity of electroluminescence illumination light for backlight illumination is reduced. I didn't.

As a resin for the base material 15 of the light-transmitting substrate 12, an acrylic resin (a pink one containing 0.5 to 3.5% by weight of bengara) is used as a pigment 16 having a pearly luster, As shown in FIG. 6D, a two-layer structure of tin oxide (SnO ₂ ) and titanium oxide (TiO ₂ ) is formed on the surface of the flake (silicon oxide (SiO ₂ )) at about 60% by weight: about 40%. A pigment having a pigment particle size of 5 μm to 50 μm (color tone: a color tone changing from purple to green depending on the viewing angle) is coated at a ratio of wt%, and the pigment content is 2 wt% to 3.5 wt% with respect to the resin. The light-transmitting substrate 12 was produced by injection molding so that the weight percentage was reached.

  As shown in FIG. 3, the upper surface 12b of the light-transmitting substrate 12 is coated with aluminum by vacuum vapor deposition so that the film thickness is 100 mm so that the metal film 14 has a single layer structure. Color: Silver color).

  Then, a white color ink (titanium oxide) was formed on the lower surface side 12a of the light-transmitting substrate 12 by screen printing so that the film thickness was 8 to 12 μm, thereby producing a watch display plate.

  The clock display board thus obtained has a novel metallic design with a silver-like metallic luster like a light pastel silver-plated metal with a pink color and a pearl-like luster. A high-quality watch display board was obtained.

  In addition, when this watch display plate is used in a solar watch, the solar cell existing below the display plate, the crosshair of the insulator, etc. are not seen through, and the light transmittance contributing to the power generation of the solar cell It had 20-40% and did not inhibit the function of the solar watch itself.

  Also, since it has such light transmittance, when this watch display board is used in a watch incorporating electroluminescence for backlight illumination, the illumination intensity of electroluminescence illumination light for backlight illumination is reduced. I didn't.

A polycarbonate resin is used as the resin of the base material 15 of the light-transmitting substrate 12, and mica or flakes (aluminum oxide (Al ₂
The surface of O ₃ )) is coated with iron oxide (Fe ₂ O ₃ ) at a ratio of about 70% by weight to about 30% by weight, and the pigment particle size is 5 μm to 50 μm (color tone: red color tone), The light transmissive substrate 12 was produced by injection molding such that the pigment content was 2 wt% to 3.5 wt% with respect to the resin.

  As shown in FIG. 7, on the upper surface side 12b of the light transmissive substrate 12, the thickness of the silver is 50 to 80 mm (target thickness: 60 mm) so that the metal coating 14 has a two-layer structure. The surface of this silver coating was coated by vacuum deposition so that the thickness was 40 to 80 mm (target thickness: 50 mm) (color tone: gold color tone).

  Then, a white color ink (titanium oxide) was formed on the lower surface side 12a of the light-transmitting substrate 12 by screen printing so that the film thickness was 8 to 12 μm, thereby producing a watch display plate.

  The clock display board thus obtained has a pink metallic reddish gold metallic luster, and has a novel design with a pearl-like luster, giving it a luxury watch display board. It was.

  In addition, when this watch display plate is used in a solar watch, the solar cell existing below the display plate, the crosshair of the insulator, etc. are not seen through, and the light transmittance contributing to the power generation of the solar cell It had 20-40% and did not inhibit the function of the solar watch itself.

  Also, since it has such light transmittance, when this watch display board is used in a watch incorporating electroluminescence for backlight illumination, the illumination intensity of electroluminescence illumination light for backlight illumination is reduced. I didn't.

As shown in FIG. 6 (B), a polycarbonate resin is used as the resin of the base material 15 of the light-transmitting substrate 12 and the pigment 16 has a luster like pearl. As shown in FIG. 6B, flakes (aluminum oxide (Al ₂ O ₃₎ )) Surface is coated with a two-layer structure of tin oxide (SnO ₂ ) and titanium oxide (TiO ₂ ) at a ratio of about 70% by weight to about 30% by weight, and the particle size of the pigment is 5 μm to 50 μm The light transmissive substrate 12 was produced by injection molding (color tone: silver color tone) such that the pigment content was 2 wt% to 3.5 wt% with respect to the resin.

  As shown in FIG. 7, on the upper surface side 12b of the light transmissive substrate 12, the thickness of the silver is 50 to 80 mm (target thickness: 60 mm) so that the metal coating 14 has a two-layer structure. The surface of this silver coating was coated by vacuum deposition so that the thickness was 40 to 80 mm (target thickness: 50 mm) (color tone: gold color tone).

  Then, a white color ink (titanium oxide) was formed on the lower surface side 12a of the light-transmitting substrate 12 by screen printing so that the film thickness was 8 to 12 μm, thereby producing a watch display plate.

  The clock display board obtained in this way has a gold-based metallic luster like gold-plated metal, and has a novel design with a pearl-like luster. It was.

  In addition, when this watch display plate is used in a solar watch, the solar cell existing below the display plate, the crosshair of the insulator, etc. are not seen through, and the light transmittance contributing to the power generation of the solar cell It had 20-40% and did not inhibit the function of the solar watch itself.

  Also, since it has such light transmittance, when this watch display board is used in a watch incorporating electroluminescence for backlight illumination, the illumination intensity of electroluminescence illumination light for backlight illumination is reduced. I didn't.

As shown in FIG. 6 (B), a polycarbonate resin is used as the resin of the base material 15 of the light-transmitting substrate 12 and the pigment 16 has a luster like pearl. As shown in FIG. 6B, flakes (aluminum oxide (Al ₂ O ₃₎ )) Surface is coated with a two-layer structure of tin oxide (SnO ₂ ) and titanium oxide (TiO ₂ ) at a ratio of about 70% by weight to about 30% by weight, and the particle size of the pigment is 5 μm to 50 μm The light transmissive substrate 12 was produced by injection molding (color tone: silver color tone) such that the pigment content was 2 wt% to 3.5 wt% with respect to the resin.

  As shown in FIG. 7, on the upper surface side 12b of the light transmissive substrate 12, the thickness of the silver is 50 to 80 mm (target thickness: 60 mm) so that the metal coating 14 has a two-layer structure. The surface of this silver coating was coated by vacuum deposition so that the thickness was 40 to 80 mm (target thickness: 50 mm) (color tone: gold color tone).

  Then, a cream-colored ink was formed on the lower surface side 12a of the light-transmitting substrate 12 by screen printing so as to have a film thickness of 8 to 12 μm, thereby producing a watch display plate.

  The clock display board obtained in this way has a gold-based metallic luster like a slightly yellowish soft gold-plated metal, and also has a novel design with a pearly luster, A high-quality watch display board was obtained.

  In addition, when this watch display plate is used in a solar watch, the solar cell existing below the display plate, the crosshair of the insulator, etc. are not seen through, and the light transmittance contributing to the power generation of the solar cell It had 20-40% and did not inhibit the function of the solar watch itself.

  Also, since it has such light transmittance, when this watch display board is used in a watch incorporating electroluminescence for backlight illumination, the illumination intensity of electroluminescence illumination light for backlight illumination is reduced. I didn't.

As a resin for the base material 15 of the light-transmitting substrate 12, an acrylic resin (a pink one containing 0.5 to 3.5% by weight of bengara) is used as a pigment 16 having a pearly luster, As shown in FIG. 6D, a two-layer structure of tin oxide (SnO ₂ ) and titanium oxide (TiO ₂ ) is formed on the surface of the flake (silicon oxide (SiO ₂ )) at about 60% by weight: about 40%. A pigment having a pigment particle size of 5 μm to 50 μm (color tone: a color tone changing from purple to green depending on the viewing angle) is coated at a ratio of wt%, and the pigment content is 2 wt% to 3.5 wt% with respect to the resin. The light-transmitting substrate 12 was produced by injection molding so that the weight percentage was reached.

  As shown in FIG. 7, on the upper surface side 12b of the light transmissive substrate 12, the thickness of the silver is 50 to 80 mm (target thickness: 60 mm) so that the metal coating 14 has a two-layer structure. The surface of this silver coating was coated by vacuum deposition so that the thickness was 40 to 80 mm (target thickness: 50 mm) (color tone: gold color tone).

  Then, a white color ink (titanium oxide) was formed on the lower surface side 12a of the light-transmitting substrate 12 by screen printing so that the film thickness was 8 to 12 μm, thereby producing a watch display plate.

  The clock display board obtained in this way has a gold-based metallic luster like a light pastel gold-plated metal with a pink color, and also has a novel design with a pearly luster, A high-quality watch display board was obtained.

  In addition, when this watch display plate is used in a solar watch, the solar cell existing below the display plate, the crosshair of the insulator, etc. are not seen through, and the light transmittance contributing to the power generation of the solar cell It had 20-40% and did not inhibit the function of the solar watch itself.

  Also, since it has such light transmittance, when this watch display board is used in a watch incorporating electroluminescence for backlight illumination, the illumination intensity of electroluminescence illumination light for backlight illumination is reduced. I didn't.

  The above Examples 1 to 16 are shown in Table 1.

FIG. 1 is a cross-sectional view of a wristwatch in which a timepiece display plate of the present invention is applied to a solar timepiece. FIG. 2 is a sectional view of a solar timepiece display plate structure to which the timepiece display plate of the present invention is applied. FIG. 3 is an enlarged view of a portion I in FIG. FIG. 4 is a cross-sectional view of an embodiment of a pigment 16 having a pearly luster. FIG. 5 is a cross-sectional view of another embodiment of a pigment 16 having a pearly luster. FIG. 6A is a cross-sectional view of another embodiment of a pigment 16 having a pearly luster. FIG. 6B is a cross-sectional view of another embodiment of pigment 16 having a pearly luster. FIG. 6C is a cross-sectional view of another embodiment of pigment 16 having a pearly luster. FIG. 6D is a cross-sectional view of another embodiment of pigment 16 having a pearly luster. FIG. 7 is an enlarged sectional view showing another embodiment of the timepiece display board of the present invention. FIG. 8 is a plan view of a wristwatch having a conventional solar watch display panel structure. FIG. 9 is a cross-sectional view of a conventional display structure for a solar timepiece.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wristwatch 2 Outer trunk 3 Support frame 4 Module 5b Inner shaft 5a Outer shaft 5 Needle shaft 6 Hour hand 7 Minute hand 8 Waterproof packing 9 Back cover 10 Windshield glass 11 Solar cell 12 Light transmitting substrate 12a Lower surface side 12b Upper surface side 13 Control coating 14 metal coating or metal oxide film 15 substrate 16 pigment 17 My mosquito <br/> 18 metal or metal oxide 19 flakes 20 metal or metal oxide 30 print-time character 111 solar cell 112 solar timepiece display plate 113 colored half Transparent substrate 114 Pattern layer 115 Metal vapor deposition layer 132 Solar cell 133 Insulation band A Display structure for solar clock A1 Hole B Display panel for clock

Claims (14)

A display panel for a watch through which light can be transmitted, which is disposed on the surface side of a solar cell and / or electroluminescence built into the watch, or both,
A light-transmitting substrate containing a pigment having a gloss like pearl;
A control film that is formed on the lower surface side of the light-transmitting substrate and adjusts color tone and light transmittance;
It is formed on the upper surface side of the light transmissive substrate, and is composed of a metal film or a metal oxide film that gives a metal texture,
A pigment having luster like pearl contained in the light-transmitting substrate,
A pigment whose metal or metal oxide is coated on the surface of mica, or
A timepiece display panel comprising a pigment having a surface of flakes made of aluminum oxide or silicon oxide coated with metal or metal oxide . Wherein the metal is coated on My mosquito surface or a metal to be coated on the surface of the flakes, nickel, aluminum, gold, silver, copper, one metal selected from palladium or two of these metals, The timepiece display plate according to claim 1, comprising the above alloy metal. Metal oxide coated on the surface of the My Ca, or metal oxide to be coated on the surface of the surface of the flakes, selective titanium oxide, iron oxide, tin oxide, silicon oxide, aluminum oxide or zirconium oxide, The timepiece display panel according to claim 1 , comprising at least one metal oxide. Pigment having a gloss like pearls contained in the light-transmitting substrate, the My Ca, 40 to 80 wt%, the metal or metal oxide, or contains 20 to 60 wt%, or,
Pigment having a gloss like pearls contained in the light-transmitting substrate, according to claim 1 wherein the flakes, 40-80% by weight, of the metal or metal oxide, characterized in that it contains 20 to 60 wt% The display board for timepieces in any one of 3 to 3 . The timepiece display plate according to any one of claims 1 to 4 , wherein the glossy pigment such as pearl has a particle size of 5 to 50 µm. The light transmitting substrate, a pigment having a gloss as the pearl to claim 1, wherein the 5 in that it comprises 0.5 to 5 wt% with respect to the light transmitting substrate of the substrate The clock display board as described. Watch display plate according to any one of claims 1 to 6, wherein the light-transmitting control film formed on the lower surface side of the substrate, characterized in that it is composed of an ink or paint. The timepiece display plate according to any one of claims 1 to 7 , wherein the control coating formed on the lower surface side of the light-transmitting substrate has a thickness of 5 to 15 µm. The light transmitting top metal coating or a metal oxide is formed on the side coating of the substrate, any one of claims 1 to 8, characterized in that it has a refractive index different from the optical refractive index of the light transmitting substrate Display board for clocks as described in 1. A metal film or metal oxide film formed on the upper surface side of the light transmissive substrate,
Formed from a single metal or metal oxide coating , or
Watch display plate according to any one of claims 1-9, characterized in that it is laminated from metal coating or metal oxide coating a plurality of layers. Film thickness of a single layer metal film or metal oxide film formed on the upper surface side of the light transmissive substrate , or
Each of the plurality of laminated metal films or metal oxide films formed on the upper surface side of the light transmissive substrate has a film thickness,
The timepiece display panel according to claim 10 , wherein the display panel is 100 to 1500 mm. Film thickness of a single layer metal film or metal oxide film formed on the upper surface side of the light transmissive substrate , or
Each of the plurality of laminated metal films or metal oxide films formed on the upper surface side of the light transmissive substrate has a film thickness,
The timepiece display board according to claim 11 , wherein the timepiece display board is 300 to 1000 mm. The timepiece display panel according to claim 10 , wherein the plurality of layers of metal coatings or metal oxide coatings have different optical refractive indexes. The metal oxide film formed on the upper surface side of the light transmissive substrate is made of at least one metal oxide selected from silicon oxide, titanium oxide, zirconium oxide, aluminum oxide, iron oxide, and tin oxide. Watch display panel according to claim 1, wherein 13.

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