JP7095503B2 - Display board - Google Patents

Description

The present invention relates to a display board of a display device mounted on a vehicle or the like.

Vehicles such as automobiles are equipped with display devices such as speedometers and engine speedometers that display information necessary for driving. The display device has a display board. The display board is generally manufactured by printing a design such as a scale, letters, numbers, and symbols, a background pattern, and a ground color on a transparent substrate by, for example, screen printing.

Japanese Unexamined Patent Publication No. 2010-216941

With the diversification of today's designs, it may be required to give a three-dimensional effect according to the pattern that is the background of the display board. However, conventional display boards generally have a single layer of matte or glossy overcoat layer (transparent layer) over the entire surface of the display board, and the pattern on the display board has a three-dimensional effect. It wasn't enough to make it.

The present invention has been made in consideration of such circumstances, and an object of the present invention is to provide a display board capable of improving designability.

The display board according to the present invention has a plurality of lines forming a grid and a plurality of inner regions formed by the lines in order to solve the above-mentioned problems, and the lines, the above, with respect to the first direction. A display board having a pattern portion in which inner regions are alternately arranged, the base material, a line forming layer forming the line on the front side of the base material, and the front side of the line forming layer. The inner region forming layer forming the inner region and the front side of the inner region forming layer are formed at least at locations corresponding to the inner regions, and have a gradient from dense to coarse along the first direction. On the front surface side of the first transparent layer, at least a portion corresponding to each of the inner regions, and formed in each of the inner regions in a narrower range than the first transparent layer. A second transparent layer, which is formed with a gradation so as to be dense to coarse along the first direction.

In the display board according to the present invention, the designability can be improved.

The front view which shows the display device which has the display board which is one Embodiment of the display board which concerns on this invention. Sectional drawing along line II-II of FIG. It is sectional drawing which follows the line III-III of FIG. 1, and is the sectional drawing which shows the display board in particular. Enlarged view of Region IV in FIG. It is sectional drawing which follows the VV line of FIG. 1, and is the sectional drawing which shows the display board in particular. Explanatory drawing of the pattern part when it is visually recognized by the viewer.

An embodiment of the display board according to the present invention will be described with reference to the accompanying drawings. The display board according to the present invention is mounted on a vehicle such as an automobile or a two-wheeled vehicle, a ship, an agricultural machine, or a construction machine. In the present embodiment, an example in which the display board according to the present invention is a display board of a display device for an automobile having a speedometer will be described.

FIG. 1 is a front view showing a display device 1 having a display board 10 which is an embodiment of the display board according to the present invention.
FIG. 2 is a cross-sectional view taken along the line II-II of FIG.
FIG. 3 is a cross-sectional view taken along the line III-III of FIG. 1, and in particular, is a cross-sectional view showing the display board 10.

In the following description, "front (front)", "rear (rear)", "top", "bottom", "right", and "left" are the views in FIGS. 1 to 3 and FIG. 5, which will be described later. The definitions in "Fr.", "Re.", "To.", "Bo.", "R", and "L" are followed.

The display device 1 has a speedometer 3. The speedometer 3 (instrument) is a pointer-type instrument that displays the speed of the vehicle. The display device 1 mainly includes a pointer 20, a display board 10, a circuit board 30, a case 40, and a back member 50.

The pointer 20 is connected to the pointer driving unit 32 on the circuit board 30 via the pointer base 21. The pointer 20 points to the scale 11 of the display plate 10 corresponding to the speed by rotating on a surface parallel to the surface of the display plate 10.

The display plate 10 is supported on the middle case 42 on the front side of the circuit board 30 and on the rear side of the pointer 20. The display board 10 has a base material 61 and a plurality of layers 62 to 69 laminated on the base material 61. Details of the base material 61 and the plurality of layers 62 to 69 laminated on the base material 61 will be described later.

The circuit board 30 mainly includes a plurality of light sources 31, a pointer driving unit 32, and a control unit including a driver of the light source 31 and the pointer driving unit 32. The circuit board 30 is supported by the lower case 41 and the middle case 42.

The light source 31 is provided on the front surface 30a of the circuit board 30. The light source 31 is, for example, a top view type (top emission type) LED (Light Emitting Diode). A plurality of light sources 31 are provided according to the number and positions of the designs of the display device 1.

The pointer driving unit 32 is connected to the pointer 20 (pointer base 21) via the pointer shaft 33, and rotates the pointer 20 according to the input traveling speed of the vehicle.

The control unit has a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and executes predetermined arithmetic processing according to, for example, a program written in the ROM. The control unit acquires various vehicle information from, for example, an ECU (Electronic Control Unit) of the vehicle. The control unit turns on the light source 31 and drives the pointer driving unit 32 based on the acquired information.

The case 40 has a lower case 41 and a middle case 42.

The lower case 41 covers the rear side of the circuit board 30 and fits with the facing member 50 to form the outer shape of the display device 1. The lower case 41 is a light-shielding resin (for example, black polypropylene).

The middle case 42 is a light-shielding resin (for example, white polypropylene) and supports the circuit board 30 inside the lower case 41. The middle case 42 has a partition wall 45 that surrounds each light source 31 and forms a partition 46. The partition wall 45 is a cylindrical wall extending from the rear to the front of the illumination (light emitting) region of the light source 31, and the light of the light source 31 passes through the partition 46 from the rear side to the front side. The partition wall 45 has a substrate-side opening end 47 and a display plate-side opening end 48. The substrate-side open end 47 is an open end located on the rear side and is in contact with the circuit board 30. The display plate side opening end 48 is an opening end located on the front side and is in contact with the display plate 10.

The facing member 50 is a light-shielding resin (for example, a black polypropylene resin) and is arranged on the front surface side of the display board 10. The facing member 50 shields light from the area other than the display area of the display plate 10. The counter member 50 has an opening 52 to which a cover 51 made of a translucent resin material is attached.

Next, the details of the display board 10 will be described.

FIG. 4 is an enlarged view of region IV of FIG.
FIG. 5 is a cross-sectional view taken along the line VV of FIG. 1, and is particularly a cross-sectional view showing a display board.

The display plate 10 has a base material 61, a design layer 62, a light-shielding layer 63, a line forming layer 64, an inner region forming layer 65, a line gradation forming layer 66, and a first, from the rear side to the front side. It has an overcoat layer 67, a second overcoat layer 68, and a third overcoat layer 69.

By having these layers, the display plate 10 forms a particularly circular pattern portion 70 as shown in FIG. The pattern portion 70 has a plurality of lines 72 forming the grid 71 and a plurality of inner regions 73 formed by the lines 72. The lattice 71 is formed by intersecting a horizontal line 72a extending in the left-right direction and a vertical line 72b extending in the vertical direction at a right angle, and the inner region 73 is formed in a square shape. In the present embodiment, the line 72 and the inner region 73 are alternately arranged with respect to the first direction, particularly from the bottom to the top.

The base material 61 is a plate-shaped member made of a resin having transparency (translucency) (for example, a polycarbonate resin).

The design layer 62 is printed with a white translucent ink. The design layer 62 is formed at least at a position where the light of the light source 31 is transmitted, where a design such as a scale 11 and a number / character 12 is provided. That is, the design layer 62 expresses the colors of the design such as the scale 11 and the numbers / characters 12.

The light-shielding layer 63 is printed with black light-shielding ink. The light-shielding layer 63 is formed by removing the design portion and forming a character shape. As a result, the light-shielding layer 63 transmits the light of the light source 31 in the design and shields the other areas from light.

The line forming layer 64 is a layer that forms the line 72 on the front surface side of the base material 61. The line forming layer 64 is a print layer printed with gray ink. The line forming layer 64 is formed at least at a position where the line 72 of the pattern portion 70 is provided. That is, the line forming layer 64 expresses the color of the line 72.

The inner region forming layer 65 is a layer that forms a quadrangular inner region 73 on the front surface side of the line forming layer 64. The inner region forming layer 65 is printed with the same black ink as the light shielding layer 63. As a result, in the region where the inner region forming layer 65 is not formed, the line forming layer 64 is exposed and the gray line 72 is expressed.

The line gradation forming layer 66 is formed on the front surface side of the line forming layer 64 at a position corresponding to each line 72 with a color different from the color of the line forming layer 64. Specifically, the line gradation forming layer 66 is printed with the same black ink as the inner region forming layer 65, and is formed in the same process as the inner region forming layer 65. As shown in FIG. 5, the line gradation forming layer 66 is formed with a gradation 75 so as to be dense to coarse along the second direction. In the present embodiment, the direction from the peripheral edge 70a of the pattern portion 70 toward the center is the second direction.

The first overcoat layer 67 (third transparent layer) is formed on at least the pattern portion 70 between the inner region forming layer 65 and the second overcoat layer 68 (first transparent layer). The first overcoat layer 67 is printed with a matte transparent ink. The first overcoat layer 67 is preferably formed on the entire display plate 10 to protect the surface of the display plate 10.

The second overcoat layer 68 (first transparent layer) is formed on the front surface side of the first overcoat layer 67 (inner region forming layer 65) at locations corresponding to each line 72 and each inner region 73. The second overcoat layer 68 is a matte transparent ink, and is printed with an ink having a glossier feeling than the ink of the first overcoat layer 67. That is, the degree of matting of the ink of the first overcoat layer 67 is higher than the degree of matting of the ink of the second overcoat layer 68. As shown in FIGS. 1 and 4, the second overcoat layer 68 is formed with a gradation 76 so as to be dense to coarse along the first direction.

Specifically, in the second overcoat layer 68, the line 72 portion is the densest in the first direction (the width along the first direction is larger in the cross section of FIG. 4), and the line 72 is extended to the inner region 73. It is formed to be coarse (the width along the first direction becomes smaller). In the present embodiment, the second overcoat layer 68a is formed on the entire line 72 (solid coating), and four streaky second overcoat layers 68b having different widths are formed on each inner region 73. In the second overcoat layer 68, such coarseness and density repeatedly appear with the repetition of the line 72 and the inner region 73 in the first direction.

The third overcoat layer 69 (second transparent layer) is formed at a position corresponding to each line 72 and each inner region 73 on the front surface side of the second overcoat layer 68. The third overcoat layer 69 is a glossy transparent ink, and is printed with an ink having a glossier feeling than the ink of the second overcoat layer 68. That is, the degree of matting of the ink of the second overcoat layer 68 is higher than the degree of matting of the ink of the third overcoat layer 69. Like the second overcoat layer 68, the third overcoat layer 69 is formed with a gradation 77 so as to be dense to coarse along the first direction. Further, the third overcoat layer 69 is formed in each inner region 73 in a narrower range than the second overcoat layer 68.

Specifically, the third overcoat layer 69 is formed so that the line 72 portion is the densest in the first direction and becomes coarse from the line 72 to the inner region 73. In the present embodiment, the third overcoat layer 69a is formed with a width smaller than that of the second overcoat layer 68a solidly coated on the line 72, and each inner region 73 has a width smaller than that of the second overcoat layer 68b. Therefore, two streaky third overcoat layers 69b were formed, which was smaller in number than the second overcoat layers 68b having different widths. In the third overcoat layer 69, such coarseness and fineness appear repeatedly with the repetition of the line 72 and the inner region 73 in the first direction.

In such a display board 10 in the present embodiment, a transparent layer composed of two layers, a second overcoat layer 68 and a third overcoat layer 69, is formed in each inner region 73 with gradations 76 and 77. As a result, a three-dimensional effect is created in the grid-like pattern portion 70, and the designability can be improved. Further, the inks of the first overcoat layer 67, the second overcoat layer 68, and the third overcoat layer 69 were made to have different luster so as to make the intensity of light reflection different. As a result, the reflection of light becomes stepped, and the display board 10 can have a more three-dimensional effect. In particular, the ink of the third overcoat layer 69 on the front surface is a glossy transparent ink having the strongest light reflection. As a result, the reflection of the light in the foreground is conspicuous, and the display board 10 can have a more three-dimensional effect.

Further, the display board 10 formed a gradation 75 with the line gradation forming layer 66 from the peripheral edge 70a of the perfect circular pattern portion 70 toward the center. Therefore, the pattern portion 70 can be visually recognized by the viewer as if it were a curved surface as shown in FIG. 6, and the display plate 10 can further have a three-dimensional effect. Further, due to the synergistic effect of the gradation 75 of the line 72 by the line gradation forming layer 66 and the gradations 76 and 77 of the inner regions 73 of the second overcoat layer 68 and the third overcoat layer 69, the inner region 73 looks like a dimple. It can be visually recognized as if it were a dent 78.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

For example, the grid may be formed by a curved line, not limited to the case where it is formed by a plurality of lines extending in two orthogonal directions. Further, the pattern portion may be a crocodile skin pattern, a tatami pattern, a scale pattern, or a polygonal pattern other than a square pattern.

The first direction and the second direction as the direction of the gradation are not limited to the above-mentioned example. The first direction and the second direction may be the same direction.

The colors of the line forming layer 64 and the inner region forming layer 65 described above are examples, and are not limited thereto.

The gradation in the inner region may be formed at least in the portion corresponding to the inner region, and is not essential for the portion corresponding to the line. Further, the gradation 75 (line gradation forming layer 66) is not essential, and the line 72 portion may be solidly painted.

The relative relationship between the glossiness of the first to third overcoat layers 67 to 69 described above is not limited to that described above, and may be set according to the visual effect of the pattern portion.

1 Display device 3 Speed meter 10 Display board 11 Scale 12 Numbers / characters 20 Pointer 21 Pointer base 30 Circuit board 30a Front 31 Light source 32 Pointer drive 33 Pointer shaft 40 Case 41 Lower case 42 Middle case 45 Partition wall 46 Section 47 Board side Opening end 48 Display plate side opening end 50 Backing member 51 Cover 52 Opening 61 Base material 62 Design layer 63 Shading layer 64 Line forming layer 65 Inner area forming layer 66 Line gradation forming layer 67 First overcoat layer 68, 68a, 68b 2 Overcoat layer 69, 69a, 69b Third overcoat layer 70 Pattern part 70a Periphery 71 Lattice 72, 72a, 72b Line 73 Inner region 75, 76, 77 Gradation 78 Indentation

Claims (5)

A display board having a plurality of lines forming a grid and a plurality of inner regions formed by the lines, and having a pattern portion in which the lines and the inner regions are alternately arranged in a first direction. ,
With the base material,
On the front surface side of the base material, the line forming layer forming the line and the line forming layer
On the front surface side of the line forming layer, the inner region forming layer forming the inner region and the inner region forming layer
A first transparent layer formed on the front surface side of the inner region forming layer at least at a position corresponding to each of the inner regions and having a gradation from dense to coarse along the first direction.
On the front surface side of the first transparent layer, at least a portion corresponding to each of the inner regions, which is formed in a narrower range than the first transparent layer in each of the inner regions, and is densely formed along the first direction. A display board comprising a second transparent layer formed with a gradation so as to be coarse. The display board according to claim 1, wherein the second transparent layer is formed of a material having a glossy feeling different from that of the first transparent layer. The display plate according to claim 1, wherein the first transparent layer and the second transparent layer are formed so that the line portion is the densest in the first direction and becomes coarse from the line to the inner region. .. The display board according to claim 1, further comprising a third transparent layer formed on at least the pattern portion between the inner region forming layer and the first transparent layer. On the front side of the line forming layer, a color different from the color of the line forming layer is formed at a position corresponding to each line, and the line is formed with a gradation from dense to coarse along the second direction. The display board according to any one of claims 1 to 4, further comprising a line gradation forming layer.

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