JP2020140152A - Display device - Google Patents

Abstract

To provide a display device characteristic of good appearance of a border between a colored frame and a translucent part.SOLUTION: A display device 100 to be installed in a vehicle includes a display part 10, a translucent part 30, and a frame 42. The display part 10 displays information concerning a vehicle. The translucent part 30 is a tabular member located on the side of the face of the display part 10 and exhibiting translucency. The frame 42 is located at a perimetric end of the translucent part 30, and covers the face of the translucent unit 30 over the perimetric end. A chromatic layer is formed on the face of the frame 42, and the frame 42 is colored with a predetermined color. A groove 31 that is dented toward the back is formed in the face of a portion of the translucent part 30 adjoining the frame 42.SELECTED DRAWING: Figure 2

Description

The present invention relates to a display device mounted on a vehicle.

As a display device mounted on a vehicle, for example, Patent Document 1 discloses a display device configured as a meter device mounted on a motorcycle or the like. The display device disclosed in Patent Document 1 includes a plate-shaped translucent portion (meter lens 53 in the same document) located in front of the display portion and a frame portion (the same document) provided at the outer peripheral end of the translucent portion. The rim 81F) is provided (see FIG. 4 and the like in the same document).

Japanese Patent No. 5650623

In a display device having the above structure, for example, the frame portion may be colored after the translucent portion and the frame portion are integrated. When coloring the frame portion in this way, for example, the frame portion is colored using a masking jig that protects the translucent portion from painting, but the pigment gets in between the masking jig and the translucent portion. There is. Then, the boundary portion between the frame portion and the translucent portion is unintentionally blurred, and there is a risk that the appearance cannot be maintained.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a display device having a good appearance at a boundary portion between a colored frame portion and a translucent portion.

In order to achieve the above object, the display device according to the present invention is
A display device mounted on a vehicle
A display unit that displays information about the vehicle and
A plate-shaped translucent portion located on the front side of the display unit and having translucency,
A frame portion provided at the outer peripheral end portion of the transmissive portion and covering the front surface of the transmissive portion at the outer peripheral end portion is provided.
A colored layer is provided on the front surface side of the frame portion.
A groove recessed toward the back surface side is formed on the front surface side of the portion of the light transmitting portion adjacent to the frame portion.

According to the present invention, it is possible to provide a display device having a good appearance at the boundary portion between the colored frame portion and the translucent portion.

It is a top view of the display device which concerns on one Embodiment of this invention. It is the schematic sectional drawing in line AA shown in FIG. 1 of a display device. It is an enlarged view of the part D shown in FIG. It is a figure for demonstrating the example of the coloring process of a frame part. It is a figure for demonstrating the modification 1. FIG. It is a figure for demonstrating the modification 2.

A display device according to an embodiment of the present invention will be described with reference to the drawings.

The display device 100 shown in FIG. 1 is mounted on a vehicle such as a motorcycle, and is configured as a vehicle instrument for notifying a user (mainly a driver) of measured amounts of the vehicle such as vehicle speed, engine speed, and residual fuel. Will be done. The display device 100 is arranged near the handle of the motorcycle, for example.

In the following, in order to facilitate understanding of the configuration, each part constituting the display device 100 will be appropriately described with the upper side in FIG. 2 showing the display device 100 in cross section as the front side and the lower side as the back side. In FIG. 2, the front side is represented by "F" and the back side is represented by "B". Further, in FIG. 2, hatching indicating a cross section is omitted in consideration of legibility.

As shown in FIGS. 1 to 3, the display device 100 includes a display unit 10, a circuit board 20, a translucent unit 30, a first case 40, a second case 50, and an inner case 60. ..

The display unit 10 displays a measured amount such as the vehicle speed described above, and has a display 11 and a design plate 12.

The display 11 is composed of, for example, a liquid crystal display (LCD), and displays a measured amount such as a vehicle speed under the control of a control unit (not shown) described later. Specifically, the display 11 is composed of a liquid crystal panel, a backlight that illuminates the panel from the back, a drive circuit that supplies an electric signal to the liquid crystal panel, and the like. The display 11 may be an organic EL (Electro-Luminescence) display or the like.

The display of the measured amount on the display 11 includes not only a mode in which the measured value is concretely displayed by numbers and characters, but also a mode in which the user is made to read the measured amount in comparison by displaying a bar graph or a pointer image. ..

The design plate 12 has a print layer formed on at least one of the front surface and the back surface of a translucent plate material such as polycarbonate. The design plate 12 is located on the front side of the display 11, and is a light-shielding printed portion formed over substantially the entire area of the plate material while allowing the display surface of the display 11 to be seen through the formed opening 12a. Cover the part other than the display surface of.

In addition, for example, a light-transmitting portion is provided in a notch-like shape (cut-out character shape) at a predetermined portion of the light-shielding printing portion of the design plate 12, and the light-transmitting portion allows the state of the direction indicator, the lighting state of the light, and the like. Symbols (including characters, figures, and icons) representing various warnings may be formed to realize a warning display. In this case, the warning display is turned on by illuminating the translucent portion from behind by a light source (for example, LED (Light Emitting Diode)) mounted on the circuit board 20.

The circuit board 20 is composed of a printed circuit board on which a control unit (not shown), a light source for lighting a warning display, and the like are mounted. The circuit board 20 is located on the back side of the display 11.
The control unit is composed of a microcomputer or the like, and acquires data indicating various measured amounts from various sensors such as an ECU (Electronic Control Unit) and a vehicle speed sensor. Based on the data acquired in this way, the control unit causes the display 11 to display the measured amount such as the vehicle speed. Further, for example, the control unit causes the warning light source to emit light in response to signals indicating various warnings acquired from the ECU or the like.

The translucent portion 30 is a plate-shaped member having translucency, and the display portion 10 is transparently visible. The translucent portion 30 is made of a translucent resin such as PMMA (polymethyl methacrylate resin), and is located on the front surface side of the display unit 10. In this embodiment, the translucent portion 30 is formed in a disk shape. Other features of the translucent portion 30 will be described later.

The first case 40 is made of a light-shielding resin or the like and holds the light-transmitting portion 30. The first case 40 is formed by, for example, insert molding using the translucent portion 30 as an insert product, and is integrated with the translucent portion 30.

The first case 40 has a defining portion 41 that defines a visible region R of the display portion 10 for the user, and a frame portion 42 provided at the outer peripheral end portion of the translucent portion 30. The defining portion 41 is a plate-shaped portion located on the back surface side of the translucent portion 30, and has an opening 41a through which the display portion 10 can be seen. When the display device 100 is viewed from the front side, the portion of the display unit 10 that can be seen from the opening 41a through the translucent portion 30 is the visible region R.

As shown in FIG. 1, the frame portion 42 has a ring shape in a plan view. As shown in FIG. 3, the frame portion 42 covers the front surface of the outer peripheral end portion of the translucent portion 30. A first colored layer C1 is provided on the surface of the frame portion 42, including at least the front surface side and visible to the user. The first colored layer C1 is composed of, for example, a metallic coating layer, and is visually recognized as silver. In this way, the frame portion 42 provided with the first colored layer C1 looks like a metal bezel. The color of the first colored layer C1 is arbitrary. Further, in FIG. 3 and FIGS. 4 to 6 described later, hatching showing a cross section of the translucent portion 30 and the first case 40 is omitted in consideration of legibility.

The second case 50 is made of a light-shielding resin or the like, and is formed in a box shape having an opening on the front side. The second case 50 fits with the first case 40 at the outer peripheral portions of each other, and integrally forms a substantially sealed space inside. The display unit 10, the circuit board 20, and the inner case 60, which will be described later, are housed in this substantially enclosed space. The first case 40 and the second case 50 are connected via, for example, a sealing material (not shown), and the bonded portion is waterproofed.

The inner case 60 is made of a resin material and houses the display 11. The circuit board 20 is fixed to the back side of the inner case 60.

Internal units such as the display unit 10 and the circuit board 20 may be fixed to the first case 40 or the second case 50. The internal unit may have a structure or the like sandwiched between both cases. As the fixing / arrangement structure for the case of the internal unit, an appropriate one may be adopted in consideration of ease of assembly, vibration resistance, and the like. Further, at least one of the first case 40, the second case 50 and the inner case 60 may be configured by combining a plurality of members.

(About the translucent part 30)
From here on, the features of the translucent portion 30 will be described more specifically with reference to FIG. A groove 31 recessed toward the back side is formed on the front side of the portion of the light transmitting portion 30 adjacent to the frame portion 42. The groove 31 has, for example, a width (width in the left-right direction in FIG. 3) of several mm and a depth (depth in the vertical direction in FIG. 3) of several mm. In this embodiment, since the frame portion 42 is formed in a ring shape, the groove 31 is formed in a ring shape on the inner peripheral side of the frame portion 42 when viewed in a plan view. Further, the bottom surface 31a of the groove 31 is narrower than the opening end of the groove 31 (the end on the front surface side of the translucent portion 30). As a result, the groove 31 has a trapezoidal shape in cross-sectional view. For example, the bottom surface 31a is formed parallel to at least one of the front surface and the back surface of the light transmitting portion 30.

A second colored layer C2 is provided on the back surface side of the translucent portion 30 so as to face the groove 31 and the frame portion 42. The second colored layer C2 is, for example, a printing layer formed on the back surface of the translucent portion 30 by screen printing or pad printing. The second colored layer C2 is formed in the same color as the first colored layer C1. For example, the second colored layer C2 is composed of a metallic printing layer and is visually recognized as silver.

The second colored layer C2 may be formed with the same or similar color as the first colored layer C1. Here, the fact that the second colored layer C2 is formed with the same color as the first colored layer C1 means that the second colored layer C2 is only composed of a pigment (paint) having the same composition as the first colored layer C1. Not limited to this, even when the components of the pigment are different from those of the first colored layer C1, the second colored layer C2 is formed with a color that the viewer can recognize as "the same color".
Further, the fact that the second colored layer C2 is formed with a color similar to that of the first colored layer C1 means that the pigment for coloring the frame portion 42 has unintentionally adhered to the groove 31 as described later. In this case, the second colored layer C2 is the first colored layer C1 to the extent that the effect of suppressing the deterioration of the appearance of the boundary portion between the frame portion 42 and the translucent portion 30 due to the adhesion of the pigment can be exhibited. It has a similar color to. For example, even when the first colored layer C1 is silver, the second colored layer C2 is gray, the first colored layer C1 is gold, and the second colored layer C2 is yellow or ocher, the above effects can be exhibited. In this case, it can be said that the second colored layer C2 has a color similar to that of the first colored layer C1.

Further, on the back surface side of the translucent portion 30, a portion adjacent to the second colored layer C2, and on the center O (see FIG. 2) side of the transmissive portion 30, a color different from that of the second colored layer C2 The third colored layer C3 is formed. The center O side of the translucent portion 30 corresponds to the right side in FIG. As shown in FIG. 3, the boundary between the third colored layer C3 and the second colored layer C2 is set so as to substantially coincide (including exactly coincidence) with the opening end on the inner peripheral side of the groove 31.

The third colored layer C3 is, for example, a printing layer formed in black and formed on the back surface of the translucent portion 30 by screen printing or pad printing. The third colored layer C3 is formed on the outer peripheral side of the translucent portion 30 with respect to the visible region R shown in FIG. That is, the third colored layer C3 is formed in a substantially solid shape from the outer edge of the visible region R to the boundary with the second colored layer C2. Similar to the design plate 12, a light-transmitting portion is provided in a notch shape (character shape) at a predetermined portion of the third colored layer C3, or a decorative portion (character, design, etc.) in another color is provided. You may. This concludes the description of the configuration of the display device 100.

Here, an example of the coloring process of the frame portion 42 will be described.
Before the coloring step of the frame portion 42, the translucent portion 30 having the groove 31 is formed by injection molding the translucent resin. Then, the second colored layer C2 and the third colored layer C3 are formed on the back surface of the translucent portion 30 by screen printing or pad printing. The first case 40 is insert-molded using the translucent portion 30 on which the print layer is formed as an insert product. As a result, the translucent portion 30 and the first case 40 are integrated.
After preparing the translucent portion 30 and the first case 40 integrated in this way, as shown in FIG. 4, a masking jig 1 that protects the translucent portion 30 from painting is attached to the front side of the translucent portion 30. To do. The masking jig 1 is fitted with the groove 31 of the translucent portion 30 to protect the groove 31 from coating, and also protects the front surface inside the groove 31 of the translucent portion 30 from coating. After the masking jig 1 is attached in this way, the pigment is sprayed onto the frame portion 42 using, for example, a spray gun to color the frame portion 42. As long as the frame portion 42 can be colored well and the pigment for coloring the frame portion 42 does not adhere to the translucent portion 30, the coloring on the frame portion 42 is not limited to the spray coloring method, and other methods are used. A known coloring method may be used. By drying the pigment adhered to the frame portion 42 as described above, the first colored layer C1 is formed on the frame portion 42 as shown in FIG.

In the process of coloring the frame portion 42 as described above, the pigment (paint) may enter between the masking jig 1 and the translucent portion 30. However, according to the display device 100 having the configuration described above, since the groove 31 is provided in the translucent portion 30, the pigment for coloring the frame portion 42 has unintentionally adhered to the groove 31. Even so, the pigment is inconspicuous. As a result, the appearance of the boundary portion between the colored frame portion 42 and the translucent portion 30 can be kept good. A transparent (including colored transparent) printing layer may be provided in the translucent portion 30 instead of the third colored layer C3, or the third colored layer C3 may be omitted.

Further, a second colored layer C2 (an example of a colored layer on the back side) having the same or similar color as the first colored layer C1 is provided on the groove 31 on the back surface side of the light transmitting portion 30 and the portion facing the frame portion 42. Has been done. As a result, even if the pigment for coloring the frame portion 42 unintentionally adheres to the groove 31, the color visually recognized by the user through the groove 31 is the first colored color formed in the frame portion 42. Since the color of the second colored layer C2 is the same as or similar to that of the layer C1, it is less noticeable that the pigment adheres to the boundary portion between the frame portion 42 and the translucent portion 30. As a result, the appearance of the boundary portion between the colored frame portion 42 and the translucent portion 30 can be kept good.

Further, on the back surface of the translucent portion 30, a third colored layer C3 (an example of a specific colored layer) having a color different from that of the second colored layer C2 (an example of the back side colored layer) is formed, and the third colored layer C3 Is adjacent to the second colored layer C2 and is located closer to the center O side of the translucent portion 30 than the second colored layer C2. As a result, not only the pigment for coloring the frame portion 42 is inconspicuous, but also the boundary between the second colored layer C2 and the third colored layer C3 can be clearly seen, so that the frame portion 42 and the translucent portion can be clearly seen. The appearance of the boundary portion with 30 can be improved.

(Modification example 1)
In the above embodiment, an example in which the third colored layer C3 is formed at a position adjacent to the second colored layer C2 formed on the groove 31 on the back surface side of the translucent portion 30 and the portion facing the frame portion 42 is shown. However, it is not limited to this. For example, as shown in FIG. 5, a fourth colored layer C4 may be formed between the second colored layer C2 and the third colored layer C3. The fourth colored layer C4 has a gradation mode in which the color of the second colored layer C2 gradually changes from the color of the third colored layer C3 toward the center O side from the outer peripheral side of the translucent portion 30. Is formed by. For example, when the second colored layer C2 is silver and the third colored layer C3 is black, the fourth colored layer C4 gradually changes from silver to black from the outer peripheral side to the center O side of the translucent portion 30. It is formed with a shade of gradation that changes to. The fourth colored layer C4 is, for example, a printing layer formed on the back surface of the translucent portion 30 by screen printing or pad printing. Further, as shown in FIG. 5, the boundary between the fourth colored layer C4 and the second colored layer C2 is set so as to substantially coincide with (including exactly coincidence) with the opening end on the inner peripheral side of the groove 31. The width of the fourth colored layer C4 (width in the left-right direction in FIG. 5) is arbitrary and may be determined in consideration of the design. That is, a fourth colored layer C4 (another example of the specific colored layer) having a color different from that of the second colored layer C2 (an example of the back side colored layer) is formed on the back surface of the light transmitting portion 30, and the fourth colored layer is formed. C4 may be adjacent to the second colored layer C2 and may be located closer to the center O side of the translucent portion 30 than the second colored layer C2.

If the fourth colored layer C4 is provided as in the first modification, even if the pigment for coloring the frame portion 42 unintentionally adheres to the groove 31, the pigment can attach the translucent portion 30. It is possible to create an illusion that it is a part of the gradation mode of the fourth colored layer C4 that is visually recognized through the transparent layer, and the appearance of the boundary portion between the frame portion 42 and the translucent portion 30 is kept good. be able to.

If a transparent (including colored transparent) printing layer is provided in the translucent portion 30 instead of the third colored layer C3, or if the third colored layer C3 is omitted, the fourth colored layer C4 is transparent. It may be formed in a gradation mode in which the color of the second colored layer C2 gradually changes from the outer peripheral side to the central O side of the light portion 30 to transparent. Further, the second colored layer C2 itself shown in FIG. 3 described in the above embodiment may be formed in a gradation mode such as the fourth colored layer C4. Even when formed in this way, the case where the second colored layer C2 is formed with a color similar to that of the first colored layer C1 is included as long as the above effects are not lost.

(Modification 2)
In the above embodiment, an example is shown in which the bottom surface 31a of the groove 31 is formed in parallel with at least one of the front surface and the back surface of the translucent portion 30, but as shown in FIG. 6, the bottom surface 31a is formed obliquely. You may. In the example of FIG. 6, the bottom surface 31a of the groove 31 is inclined because the center O side is formed deeper than the outer peripheral side of the light transmitting portion 30. In this way, if the groove 31 is formed so as to have the bottom surface 31a inclined to the lower right in FIG. 6, the light indicating the image of the second colored layer C2 is refracted at the bottom surface 31a and reaches the user's eye. The second colored layer C2 visually recognized via the light transmitting portion 30 is visually recognized with the outer peripheral side of the second colored layer C2 being biased toward the center O side. As a result, the boundary between the second colored layer C2 and the colored layer adjacent to the second colored layer C2 (in the example of FIG. 6, the fourth colored layer C4) can be made inconspicuous. As a result, the presence of the second colored layer C2 for suppressing the deterioration of the appearance due to the unintentional adhesion of the pigment for coloring the frame portion 42 to the groove 31 can be made to appear naturally.
The colored layer adjacent to the second colored layer C2 may be the third colored layer C3 as shown in FIG. Further, the bottom surface 31a may be inclined by forming the groove 31 deeper on the outer peripheral side than on the center O side of the light transmitting portion 30. That is, the bottom surface 31a may be configured to be inclined downward to the left in FIG. In this way, the light indicating the image of the colored layer adjacent to the second colored layer C2 is refracted at the bottom surface 31a and reaches the user's eyes, so that the light is adjacent to the second colored layer C2 visually recognized through the translucent portion 30. The images of the matching colored layers are visually recognized biased toward the outer peripheral side. As a result, the boundary between the second colored layer C2 and the colored layer adjacent to the second colored layer C2 can be made inconspicuous. That is, the bottom surface 31a of the groove 31 may be inclined with respect to at least one of the front surface and the back surface of the light transmitting portion 30. The bottom surface 31a of the groove 31 may be formed on a curved surface.

The present invention is not limited to the above embodiments and drawings. Changes (including deletion of components) can be made as appropriate without changing the gist of the present invention.

In the above, an example in which the second colored layer C2 (an example of the colored layer on the back surface side) is provided over the groove 31 on the back surface side of the light transmitting portion 30 and the portion facing the frame portion 42 has been shown. Not limited to. The second colored layer C2 (an example of the back-side colored layer) is provided on the back side of the light-transmitting portion 30 as long as the effect of maintaining the appearance of the boundary portion with the light-transmitting portion 30 is good. It may be provided at least in a portion facing the groove 31. Further, the second colored layer C2 can be provided in the defining portion 41 of the first case 40. However, from the viewpoint of easy production, it is preferable that the second colored layer C2 is formed on the back surface of the light transmitting portion 30.

Further, the translucent portion 30 and the first case 40 are not limited to the mode in which they are integrated by insert molding. The light transmitting portion 30 and the first case 40 may be integrated by fitting, welding, or the like.

In the above, the display 11 of the display unit 10 has shown an example of notifying the measured amount of the vehicle by an image, but the present invention is not limited to this. The display unit 10 may display not only the measured amount but also information related to the vehicle such as car navigation information and information for notifying a caution object in the vicinity. Further, instead of the display 11, or in combination with the display 11, an analog pointer-type instrument may be provided on the back side of the translucent portion 30 of the display device 100.

In the above, an example in which the translucent portion 30 has a disk shape and the frame portion 42 has a ring shape has been described, but the shapes of the translucent portion 30 and the frame portion 42 are arbitrary. Further, the translucent portion 30 is not limited to a flat plate shape, and may have a convex lens shape, for example. Therefore, the shape of the groove 31 is arbitrary as long as it is provided on the front surface side of the portion of the translucent portion 30 adjacent to the frame portion 42.

The vehicle on which the display device 100 is mounted is not limited to the motorcycle, but may be a motorcycle, an aircraft, or the like. However, it is suitable for vehicles such as motorcycles, agricultural machines, ships, snowmobiles, jet skis, etc., in which the display device 100 is exposed to the outdoors and mounted in a manner susceptible to external light.

In the above description, in order to facilitate the understanding of the present invention, the description of not important known technical matters has been omitted as appropriate.

100 ... Display device 10 ... Display unit, 11 ... Display, 12 ... Design plate 20 ... Circuit board 30 ... Translucent part 31 ... Groove, 31a ... Bottom surface 40 ... First case 41 ... Regulation part, 41a ... Opening, R ... Visible area 42 ... Frame 50 ... Second case 60 ... Inner case C1 ... First colored layer (an example of colored layer)
C2 ... Second colored layer (an example of the colored layer on the back side)
C3 ... Third colored layer (an example of a specific colored layer)
C4 ... Fourth colored layer (another example of a specific colored layer)
1 ... Masking jig

Claims (5)

A display device mounted on a vehicle
A display unit that displays information about the vehicle and
A plate-shaped translucent portion located on the front side of the display unit and having translucency,
A frame portion provided at the outer peripheral end portion of the transmissive portion and covering the front surface of the transmissive portion at the outer peripheral end portion is provided.
A colored layer is provided on the front surface side of the frame portion.
A groove recessed toward the back surface is formed on the front surface side of the portion of the translucent portion adjacent to the frame portion.
Display device. A back-side colored layer having the same or similar color as the colored layer is provided on the back side of the light-transmitting portion facing the groove.
The display device according to claim 1. The back-side colored layer is also provided on the back side of the translucent portion so as to face the frame portion.
The display device according to claim 2. The back-side colored layer is formed on the back surface of the translucent portion.
On the back surface of the translucent portion, a specific colored layer having a color different from that of the back surface side colored layer is formed.
The specific colored layer is adjacent to the back-side colored layer and is located closer to the center of the translucent portion than the back-side colored layer.
The display device according to claim 2 or 3. The bottom surface of the groove is inclined with respect to at least one of the front surface and the back surface of the translucent portion.
The display device according to any one of claims 1 to 4.

Images