JP6984470B2 - Display device for vehicles - Google Patents

Description

The disclosure by this specification relates to a vehicle display device.

Conventionally, a vehicle display device used for a vehicle is known. The apparatus disclosed in Patent Document 1 includes a light source portion that provides light from a light source, and a translucent plate that is formed in the shape of a translucent plate and has plate surfaces on both sides. The translucent plate has a plate end portion and a display recess. The plate end portion faces the light source portion, and the light source light is introduced into the plate. The display recess is formed so as to be recessed from the surface of the recess-forming plate, and is displayed brilliantly by receiving the light source light introduced through the plate end.

Here, the plate end portion protrudes toward the light source portion in an arc shape in cross section.

Japanese Unexamined Patent Publication No. 9-318399

As described above, it is considered that the plate end portion in Patent Document 1 projects toward the light source portion in an arc shape in cross section, so that the light source light from the light source portion is focused when introduced into the inside of the plate. .. However, in such a configuration, only the portion of the display recesses close to the light source portion receives strong light source light, and there is a concern that remarkable luminance unevenness may occur in the display of the display recesses.

One object disclosed is to provide a display device for a vehicle having a good appearance by reducing the uneven brightness of the display recess.

One of the embodiments disclosed herein is a vehicle display device used in a vehicle.
A light source unit (50) that provides light source light,
A translucent plate (30) formed in a translucent plate shape and having plate surfaces (31, 32) on both sides is provided.
The translucent plate is
The plate end portion (40) facing the light source portion and introducing the light source light into the plate, and the plate end portion (40).
A display recess (33) formed so as to be recessed from one of the plate surfaces on both sides, and displayed brilliantly by receiving light from a light source introduced through the plate end. And have
The plate end portion has a light introduction restricting portion (42) that restricts the introduction of light source light into the concave portion forming plate surface side in the thickness direction of the translucent plate inside the plate.

According to such a vehicle display device, a light introduction restricting unit is provided at the end of the plate. Since this light introduction restricting portion regulates the introduction of the light source light to the concave portion forming plate surface side in the thickness direction of the translucent plate, the strong light source light is directly incident on the portion of the display concave portion near the light source portion. Is suppressed. On the other hand, the light source light introduced on the side opposite to the surface of the concave portion forming plate in the thickness direction of the translucent plate indirectly illuminates the display concave portion so as to wrap around. As a result, the display recess with reduced luminance unevenness shines, and the appearance of the vehicle display device becomes good.

It should be noted that the reference numerals in parentheses exemplify the correspondence with the parts of the embodiments described later, and are not intended to limit the technical scope.

It is a front view which partially shows the display device for a vehicle of 1st Embodiment. FIG. 2 is a sectional view taken along line II-II of FIG. It is an enlarged sectional view which expanded the part III of FIG. It is a side view of the translucent plate which saw the plate end portion of 1st Embodiment from the light source part side. FIG. 1 is a cross-sectional view taken along the line VV of FIG. 1 for explaining the width of the light introduction restricting portion. FIG. 1 is a sectional view taken along line VI-VI of FIG. 1 for explaining the width of the light introduction restricting portion. FIG. 1 is a cross-sectional view taken along the line VII-VII of FIG. 1 for explaining the width of the light introduction restricting portion. It is a figure corresponding to FIG. 5 in the modification 2. FIG. It is a figure corresponding to FIG. 5 in the modification 3.

One embodiment will be described with reference to the drawings.

(First Embodiment)
As shown in FIG. 1, the vehicle display device 100 according to the first embodiment of the present disclosure is used in a vehicle and is installed on an instrument panel facing a seat on which an occupant who visually recognizes the device 100 sits. .. The vehicle display device 100 can display vehicle information toward the visual recognition side where the occupant is located.

In this embodiment, the directions indicated by up / down, front / rear, and left / right are described with reference to the vehicle on the horizontal plane.

As shown in FIG. 2, such a vehicle display device 100 is composed of a case portion 10, a main body display portion 20, a translucent plate 30, a light source unit for a translucent plate 50, and the like.

The case portion 10 has a back side case 11, a visual recognition side case 12, a facing member 13, and a front plate 14. The back side case 11 is formed with a light-shielding property, for example, by using synthetic resin, and covers the main circuit board 16 from the back side opposite to the visual recognition side.

The visual recognition side case 12 arranged on the visual recognition side with respect to the rear side case 11 is formed with a light-shielding property, for example, by using synthetic resin, and forms an outer frame portion 12a that surrounds the main body display portion 20 from the outer peripheral side of the device 100. At the same time, a partition portion 12b that partitions the internal space of the case is formed.

The facing member 13 is formed to have a light-shielding property by, for example, synthetic resin, and is arranged on the viewing side with respect to the viewing side case 12. The facing member 13 has openings 13a and 13b on the visual recognition side and the back surface side, and is formed in a deformed tubular shape along the outer periphery of the device 100.

The front plate 14 is formed of a semipermeable resin such as a colored acrylic resin or a polycarbonate resin into a curved plate shape that closes the entire surface of the viewing side opening 13a of the facing member 13. As a result, the display portion of the main body display unit 20 and the translucent plate 30 will be visible to the occupant through the front plate 14. The front plate 14 of the present embodiment has a light transmittance of about 30% due to smoke-like coloring, but may be set to any value of 30% or more.

The main body display unit 20 has a background display plate 21 and a pointer unit 22. The background display board 21 is also generally called a dial, and is arranged so as to close the opening opened on the viewing side in the viewing side case 12. The background display board 21 is formed in a flat plate shape by partially or wholly printing semipermeable or light-shielding properties on the surface of a base material made of, for example, a translucent synthetic resin. Instead of printing, painting may be applied.

The light-shielding area of the background display board 21 due to light-shielding printing or the like is set to a dark color, particularly black, at a position facing the display recess 33 so that the display by the display recess 33 of the translucent plate 30 described later stands out. There is. Further, although not shown, the light emitting element arranged on the back side of the background display board 21 illuminates the translucent region and the semitransparent region of the background display plate 21, so that the background display plate 21 has a translucent plate 30. A pattern that is recognized as the background for the light is displayed.

Further, on the visual side of the background display board 21, an annular decorative member 21a is provided so as to surround the pointer 24 of the pointer portion 22. The decorative member 21a emits light with a brightness smaller than that of the display recess 33 between the background display plate 21 and the translucent plate 30.

A plurality (for example, two) of the pointer portions 22 are provided by arranging them in the right side region and the left side region of the background display board 21. Here, since the two pointer portions 22 have the same configuration as each other, the pointer portion 22 on the right side shown in FIGS. 1 and 2 will be described as a representative. The pointer unit 22 has a pair of a stepping motor 23 and a pointer 24. The stepping motor 23 is held by a main circuit board 16 sandwiched between the rear side case 11 and the visual recognition side case 12.

The pointer 24 integrally has a connecting portion 24a and an indicating portion 24b. The connecting portion 24a is arranged through a through hole formed in the background display plate 21, and is connected to the rotating shaft of the stepping motor 23. The indicator 24b is arranged between the background display plate 21 and the translucent plate 30, that is, on the visual side of the background display plate 21 and on the back side of the translucent plate 30, and has a needle shape. The pointer 24 rotates with the rotation axis as the rotation center RC according to the output of the stepping motor 23, and by instructing an index displayed by using the display recess 33 of the translucent plate 30 described later. , Vehicle information is displayed. Further, the pointer 24 emits light by being illuminated by a light emitting element 25 arranged on the back side of the background display board 21.

The translucent plate 30 is formed of, for example, a translucent synthetic resin in a flat plate shape having a pair of plate surfaces 31 and 32 on the visual recognition side and the back surface side. The translucent plate 30 is arranged on the visual recognition side with respect to the main body display unit 20, and is provided substantially parallel to the background display plate 21. Of the plate surfaces 31 and 32 on both sides, the viewing side plate surface 31 faces the viewing side. The back side plate surface 32 faces the background display plate 21 by facing the back side. The translucent plate 30 forms a substantially rectangular outer contour with the left-right direction as the longitudinal direction. The translucent plate 30 has a plate end portion 40 extending along the outer periphery of the translucent plate 30. The plate end portion 40 connects the plate surfaces 31 and 32 on both sides to each other. The thickness direction TD of the translucent plate 30 of the present embodiment corresponds to a direction substantially orthogonal to the stretching direction ED of the plate end portion 40 and a width direction forming a width for the stretching plate end portion 40. is doing.

A reflection adjusting film for adjusting the reflectance on the plate surfaces 31 and 32 is attached to the plate surfaces 31 and 32 of the translucent plate 30 of the present embodiment, but the base material of the plate surfaces 31 and 32 is attached. May be configured to be exposed.

The light source unit 50 for a light transmissive plate (hereinafter, simply referred to as a light source unit 50) is provided so as to face the plate end portion 40. In particular, the light source unit 50 of the present embodiment is provided at a plurality of locations (for example, two locations) individually corresponding to one side on the left side and one side on the right side of the plate end portion 40. Here, since the two light source units 50 have the same configuration as each other except that the left and right sides are opposite to each other, the light source unit 50 on the right side shown in FIGS. 1 and 2 will be described as a representative.

The light source unit 50 provides the light source light. As shown in FIG. 1, the light source unit 50 is displaced from each other in the stretching direction ED on the light source circuit board 51 arranged along the plate end portion 40 at a predetermined distance from the plate end portion 40. It has a plurality of (for example, 11) light emitting elements 52 arranged at different positions. More specifically, the light emitting elements 52 are arranged at substantially equal intervals along the stretching direction ED of the plate end portion 40. In particular, in the present embodiment, each light emitting element 52 faces the plate end portion 40 and is arranged so as to be displaced from each other in the vertical direction.

A point light source-like light emitting diode is adopted for each light emitting element 52, and each light emitting element 52 emits light from a light source when connected to a power source. In particular, in the present embodiment, each light emitting element 52 is a multi-color light emitting diode, but the light emitting elements 52 belonging to the same light source unit 50 emit light with substantially the same color and the same brightness. Further, since the light emitting element 52 has a built-in lens element, it is possible to emit light from a light source having high directivity toward the plate end portion 40.

In this way, the light source light from each light emitting element 52 uses the left-right direction of the vehicle toward the plate end portion 40 as the incident direction ID, and the plate end from a direction substantially perpendicular to the extension direction ED of the plate end portion 40. It is incident on the part 40. The plate end portion 40 introduces the light source light from each light emitting element 52 into the plate. That is, in the range of the plate end portion 40 facing the light source portion 50, the light source light is introduced into the plate from substantially continuous positions PE different from each other in the stretching direction ED.

The translucent plate 30 displays using such light source light. The translucent plate 30 has a plurality of display recesses 33 formed so as to be recessed in the thickness direction TD from the rear side plate surface 32 toward the viewing side plate surface 31 side among the plate surfaces 31 and 32 on both sides. It is appropriately arranged according to the embodiment. The recess depth (dimensions along the thickness direction TD) of each display recess 33 is set to, for example, about half the thickness of the translucent plate 30. In this embodiment, the plate thickness is set to, for example, about 3 mm. In this way, the back side plate surface 32 is a recess-forming plate surface on which a plurality of display recesses 33 are formed. Each display recess 33 is displayed brilliantly by receiving the light source light introduced through the plate end portion 40.

Specifically, as the display recess 33 of the present embodiment, a plurality of scale recesses 34 having a contour in the form of a scale and a plurality of character recesses 37 having a contour in the form of characters are provided. As described above, the display recess 33 expresses the display content according to the form of the outer peripheral contour thereof, and in particular, in the present embodiment, the pointer 24 is instructed by the scale recess 34 and the character recess 37 of the display recess 33. Indicators are displayed.

The plurality of scale recesses 34 are arranged concentrically with respect to the rotation center RC of the pointer 24 and in a partial annular shape. Each scale recess 34 has a substantially rectangular contour extending in the radial direction with respect to the rotation center RC of the pointer 24. The plurality of scale recesses 34 are further divided into a main scale recess and a sub-scale recess having a size smaller than that of the main scale recess, and the main scale recess and the sub-scale recess are arranged alternately.

As shown in FIG. 3, each scale recess 34 is visually recognized as the recess depth gradually increases toward the outer peripheral side from the inner peripheral side to the outer peripheral side with respect to the rotation center RC of the pointer 24. It has a substantially rectangular bottom surface 35 that is inclined so as to approach the side plate surface 31. The bottom surface 35 is directly connected to the back surface side plate surface 32 on one side on the inner peripheral side. On the three sides including the outer peripheral side of the bottom surface 35, the side wall surface 36 connects the bottom surface 35 and the back surface side plate surface 32 to each other.

In each scale recess 34, the side wall surface 36 is formed in a mirror surface shape and shines by receiving light from a light source. On the other hand, the bottom surface 35 is formed in a rough surface shape by, for example, embossing, and shines by diffusing the light source light.

As shown in FIG. 1, the plurality of character recesses 37 are arranged on the inner peripheral side of the main scale recess with reference to the rotation center RC of the pointer 24, and as characters, a number indicating the speed of the vehicle corresponding to the main scale recess is used. , Formed by contour.

As shown in FIG. 3, each character recess 37 has a bottom surface 38 arranged substantially parallel to the plate surfaces 31 and 32 by setting the recess depth to a constant value. The bottom surface 38 and the back surface side plate surface 32 are connected to each other by a side wall surface 39 over the entire circumference of the bottom surface 38.

Also in each character recess 37, the side wall surface 39 is formed in a mirror surface shape and shines by receiving light from a light source. On the other hand, the bottom surface 38 is formed in a rough surface shape by, for example, embossing, and shines by diffusing the light source light.

In order to illuminate each of the display recesses 33 with good appearance, the plate end portion 40 has a light introduction unit 41 and a light introduction restriction unit 42.

The light introduction unit 41 is arranged in a portion of the plate end portion 40 facing the light source portion 50 excluding the light introduction restriction portion 42, and more specifically, in the range facing the light source light of the plate end portion 40, the viewing side plate surface. It is arranged so as to be connected to 31. The light introduction unit 41 forms a plane surface 31 and 32 on both sides and a vertical plane 41a substantially perpendicular to the incident direction ID of the light source light. The light introduction unit 41 realizes a higher transmittance of the light source light than the light introduction restriction unit 42 by incident the light source light from the light source unit 50 approximately vertically, and can efficiently introduce the light source light into the plate. It has become. That is, the light introduction unit 41 promotes the introduction of the light source light into the viewing side plate surface 31 side of the thickness direction TD of the translucent plate 30 inside the plate.

The light introduction restricting unit 42 is connected to the back surface side plate surface 32 in the range facing the light source light of the plate end portion 40, so as to be connected to the back side in the thickness direction TD of the translucent plate 30 of the plate end portions 40. Have been placed. The light introduction restricting unit 42 forms an inclined plane 42a that is inclined with respect to the vertical plane 41a so as to be further separated from the light source unit 50 from the visual recognition side to the back surface side. The inclined plane 42a preferably has an angle of 42 degrees or more with respect to the vertical plane 41a, for example, an angle of 45 degrees. As a result, in the light introduction restricting unit 42, the inclined plane 42a realizes a lower light source light transmission rate than the light introduction unit 41 by obliquely incident the light source light incident along the incident direction ID, and the light source concerned. It functions as a reflecting surface that reflects light to the outside of the plate in a direction different from the incident direction ID. Specifically, most of the light source light incident on the light introduction restricting unit 42 is reflected from the plate end portion 40 to the back surface side and processed by the viewing side case 12. In this way, the light introduction restricting unit 42 restricts the introduction of the light source light to the back side plate surface 32 side of the thickness direction TD of the translucent plate 30 inside the plate.

Due to the regulation of the light introduction restricting portion 42, it is difficult for strong light source light to directly enter the side wall surface 36 of the display recess 33, and the bottom surface 38 of the display recess 33 is inside the plate from the light introduction portion 41. The light source light introduced into the above is diffused by being reflected by the viewing side plate surface 31 or the like, and the light source light is indirectly incident (in other words, so as to wrap around). In FIG. 3, the solid line arrow schematically shows how the light source light travels inside the plate, and the broken line arrow indicates that the light introduction restricting portion 42 suppresses the incident of the strong light source on the side wall surface 36. Is schematically shown. In this embodiment, the vertical plane 41a and the inclined plane 42a are connected to each other.

The degree of restriction on the introduction of light source light in the light introduction restricting unit 42 can be changed, for example, by setting the occupancy ratio of the TD in the thickness direction between the light introduction unit 41 and the light introduction restricting unit 42 at the plate end portion 40. That is, if the ratio of the TD in the thickness direction of the light introduction restricting portion 42 is increased, a large amount of light source light is reflected by the inclined plane 42a, so that the degree of regulation becomes large. On the other hand, if the ratio of the TD in the thickness direction of the light introduction restricting unit 42 is reduced, a large amount of light source light will pass through the vertical plane 41a, so that the degree of regulation will be reduced.

Using this principle, as shown in FIG. 4, the light introduction control unit 42 of the present embodiment has a first regulation unit 43 and a second regulation unit having different degrees of regulation in PEs at different positions in the stretching direction ED. It has 44 and a third regulatory unit 45.

As shown in FIGS. 4 and 5, in the first regulation unit 43, the inclined plane 42a occupies a width WA of, for example, 70% of the plate thickness of the translucent plate 30. As shown in FIGS. It occupies a width WB of, for example, 50% of the plate thickness of 30. As shown in FIGS. is doing.

Therefore, in the comparison between the first regulation unit 43 and the second regulation unit 44, the first regulation unit 43 functions as a large regulation unit having a larger degree of regulation than the second regulation unit 44, and the second regulation unit 44 is the first. It functions as a small regulation unit with a smaller degree of regulation than the regulation unit 43. Comparing the first regulatory unit 43 and the third regulatory unit 45, the first regulatory unit 43 functions as a large regulatory unit with a higher degree of regulation than the third regulatory unit 45, and the third regulatory unit 45 is the first regulatory unit. It functions as a small regulation part with a smaller degree of regulation than 43. Comparing the 2nd regulation part 44 and the 3rd regulation part 45, the 2nd regulation part 44 functions as a large regulation part having a larger degree of regulation than the 3rd regulation part 45, and the 3rd regulation part 45 is the 2nd regulation part. It functions as a small regulation part with a smaller degree of regulation than 44.

Here, in the range of the plate end portion 40 facing the light source portion 50, from the PEs at different positions in the stretching direction ED to the display recess 33 that first abuts when traveling along the incident direction ID of the light source light. Is defined as the separation distance DS. Then, for example, in the position PEA provided with the first regulation unit 43, the separation distance DSA is the minimum. Further, for example, the separation distance DSB of the position PEB slightly displaced upward from the position PEA and provided with the second regulating portion 44 is larger than the separation distance DSA in the position PEA. Further, for example, the separation distance DSC of the position PEC which is slightly displaced upward from the position PEB and is provided with the third regulating portion 45 is larger than the separation distance DSA at the position PEA and the separation distance DSB at the position PEB.

That is, in the comparison between the first regulation unit 43 and the second regulation unit 44, the first regulation unit 43 as the large regulation unit has a distance DS more than the position PE corresponding to the second regulation unit 44 as the small regulation unit. Is designed to include a small position PEA. In the comparison between the first regulation unit 43 and the third regulation unit 45, the first regulation unit 43 as the large regulation unit has a smaller separation distance DS than the position PE corresponding to the third regulation unit 45 as the small regulation unit. It is designed to include position PEA. In the comparison between the second regulation unit 44 and the third regulation unit 45, the second regulation unit 44 as the large regulation unit includes the position PEB having a smaller separation distance DS than the third regulation unit 45 as the small regulation unit. It has become.

In the present embodiment in which the display recess 33 is arranged in a circular region concentric with the rotation center RC of the pointer 24, as shown in FIG. 1, the incident direction ID is traced back from the rotation center RC of the pointer 24 to the light source unit 50 side. The first regulation unit 43 having the highest degree of regulation is set on the drawn virtual straight line.

As shown in FIGS. 5 to 7, in the translucent plate 30, the visible side case 12 is provided between the range of the plate end portion 40 facing the light source portion 50 and the region where the display recess 33 is formed. The contact portion 12c is provided so as to come into contact with the back surface side plate surface 32. The contact portion 12c is a light-shielding ridge arranged substantially parallel to the stretching direction ED of the plate end portion 40. Further, on the side opposite to the abutting portion 12c with the translucent plate 30 interposed therebetween, a back surface side opening portion 13b of the light-shielding return member 13 is provided so as to face the viewing side plate surface 31 with a slight gap. There is.

As a result, the contact portion 12c and the return member 13 function as a light-shielding partition portion, the display recess 33 is arranged, the display space SP1 visible to the occupant, the light source portion 50, and the plate end portion 40 are arranged. The introduction space SP2, which is difficult to see from the occupants, is partitioned from each other.

(Action effect)
The effects of the first embodiment described above will be described below.

According to the first embodiment, the plate end portion 40 is provided with a light introduction restricting portion 42. Since the light introduction restricting portion 42 restricts the introduction of the light source light to the plate surface 32 side as the recess forming plate surface in the thickness direction TD of the translucent plate 30, the portion of the display recess 33 close to the light source portion 50. In addition, the direct incident of strong light source light is suppressed. On the other hand, the light source light introduced on the side of the TD in the thickness direction of the translucent plate 30 opposite to the back surface side plate surface 32 indirectly illuminates the display recess 33 so as to wrap around. As a result, the display recess 33 with reduced luminance unevenness shines, and the appearance of the vehicle display device 100 is improved.

Further, according to the first embodiment, the light introduction restricting unit 42 introduces the light source light into the light introduction restricting unit 42 at positions different from each other in the stretching direction ED along the outer periphery of the translucent plate 30. There is a large regulatory department with a high degree of regulation. The small regulation part and the large regulation part are a combination of the third regulation part 45 and the second regulation part 44, a combination of the third regulation part 45 and the first regulation part 43, and the second regulation part 44 and the first. It is realized by the combination with the regulation unit 43. By providing the small regulation portion and the large regulation portion having different degrees of regulation from each other in this way, it is possible to appropriately reduce the luminance unevenness according to the shape and arrangement of the display recess 33.

Further, according to the first embodiment, the large regulation portion is formed so as to include a position on the plate end portion 40 having a smaller separation distance DS than the small regulation portion. That is, in the position where the display recess 33 exists nearby, the intensity of the light source light introduced into the plate can be further attenuated by increasing the degree of restriction on the introduction of the light source light by using the large regulation portion. As a result, it is more reliably suppressed that the strong light source light is directly incident on the portion of the display recess 33 close to the light source portion 50.

Further, according to the first embodiment, the light introduction restricting unit 42 has an inclined plane 42a as a reflecting surface that reflects the light source light incident on the plate end portion 40 from the light source unit 50 to the outside of the plate. With such an inclined plane 42a, it is possible to appropriately regulate the introduction of the light source light to the plate surface 32 side of the thickness direction TD of the translucent plate 30 while suppressing the increase in the number of parts.

Further, according to the first embodiment, the display space SP1 in which the display recess 33 is arranged and the introduction space SP2 in which the plate end portion 40 is arranged are in contact with each other as a light-shielding partition. A portion 12c and a back opening 13b are further provided. According to this, it is possible to avoid the situation where the light source light leaks from a place other than the plate end portion 40 to illuminate the display recess 33, so that the uneven brightness in the display recess 33 can be more reliably reduced.

Further, according to the first embodiment, in the display recess 33, the side wall surfaces 36 and 39 are illuminated by the light source light to shine, and the bottom surfaces 35 and 38 are formed in a rough surface shape to diffuse the light source light. Shine. Since the light introduction restricting portion 42 is provided for such a display recess 33, strong light source light may be directly incident on the side wall surfaces 36, 39 of the portion of the display recess 33 near the light source portion 50. It is suppressed. On the other hand, the light source light introduced on the side opposite to the back side plate surface 32 in the thickness direction TD of the translucent plate 30 indirectly illuminates the bottom surfaces 35 and 38 of the display recess 33 so as to wrap around. Therefore, the bottom surfaces 35 and 38 diffuse the light source light, and it is possible to realize a display with less brightness unevenness as the entire display recess 33.

(Other embodiments)
Although one embodiment has been described above, the present disclosure is not construed as being limited to the embodiment, and can be applied to various embodiments without departing from the gist of the present disclosure.

Specifically, as the first modification, the angle of the inclined plane 42a may be set to 49 degrees with respect to the vertical plane 41a. Further, the inclined plane 42a may be replaced with a curved inclined curved surface.

As a modification 2, as shown in FIG. 8, the vertical plane 41a and the inclined plane 42a do not have to be connected to each other, and there is a step in the incident direction ID between the vertical plane 41a and the inclined plane 42a. May be formed.

As a modification 3, as shown in FIG. 9, the light introduction restricting portion 42 is connected to the back side plate surface 32 instead of providing a surface that functions as a reflective surface. By forming a light-shielding layer 42b on the back surface side of the light-transmitting plate 30 in the thickness direction TD by printing, painting, or attaching a light-shielding tape, the introduction of the light source light into the plate may be restricted. In this case, the degree of regulation may be set by the occupancy ratio of the TD in the thickness direction of the light introduction restricting portion 42 at the plate end portion 40, and the transmittance of the light source light is adjusted by the material or thickness of the light shielding layer 42b. Therefore, the degree of regulation may be set.

As a modification 4, the light introduction unit 41 may not have a small regulation unit and a large regulation unit having different regulation degrees, and may have a constant regulation degree set regardless of the position.

As a modification 5, the display recess 33 may be formed so as to be recessed from the viewing side plate surface 31 toward the back surface side plate surface 32, so that the viewing side plate surface 31 may be set as the recess forming plate surface. In this case, the light introduction restricting portion 42 is arranged on the visible side in the thickness direction TD of the translucent plate 30 of the plate end portions 40 so as to be connected to the visible side plate surface 31, so that the light transmissive plate is arranged. The introduction of the light source light to the concave portion forming plate surface side of the TDs in the thickness direction of 30 is restricted.

As a modification 6, the display recess 33 may be set to a fine size of, for example, a recess depth of 20 μm or less, and may have a reflecting surface that reflects the light source light to the visual recognition side. Then, by appropriately arranging a large number of display recesses 33, the design may be displayed by emitting light in a planar manner by the aggregate of the large number of display recesses 33.

As a modification 7, the light source unit 50 is not limited to an array of a plurality of light emitting elements 52 (for example, a light emitting diode), and is, for example, a surface light source-like panel arranged along the stretching direction ED of the plate end portion 40. Etc., other configurations can be adopted.

As the modification 8, the display recess 33 is not limited to displaying the index indicated by the pointer 24, and can display, for example, other vehicle information, a simple pattern, or the like.

100 Vehicle display device, 30 Translucent plate, 31 Visible side plate surface, 32 Back side plate surface (concave forming plate surface), 33 Display recess, 40 Plate end, 50 Light source unit for translucent plate (light source unit)

Claims (6)

A display device for vehicles used in vehicles.
A light source unit (50) that provides light source light,
A translucent plate (30) formed in a translucent plate shape and having plate surfaces (31, 32) on both sides is provided.
The translucent plate is
A plate end portion (40) facing the light source portion and introducing the light source light into the plate, and a plate end portion (40).
A display recess formed so as to be recessed from one of the plate surfaces (32) of the plate surfaces on both sides, and displayed brilliantly by receiving the light source light introduced through the plate end portion. (33) and
The plate end portion is a display for a vehicle having a light introduction restricting portion (42) that restricts the introduction of the light source light into the recess-forming plate surface side in the thickness direction of the translucent plate inside the plate. Device. The plate end portion is stretched in the stretching direction (ED) along the outer periphery of the translucent plate.
Claim 1 that the light introduction restricting unit has a small regulation unit and a large regulation unit in which the degree of restriction on the introduction of light source light is larger than that of the small regulation unit at positions (PEs) different from each other in the stretching direction. Display device for vehicles described in. The distance from each position to the display recess that first abuts when traveling along the incident direction (ID) of the light source light is defined as the separation distance (DS).
The vehicle display device according to claim 2, wherein the large regulation unit includes the position having a smaller separation distance than the minor regulation unit. The vehicle use according to any one of claims 1 to 3, wherein the light introduction restricting unit has a reflecting surface (42a) that reflects the light source light incident on the plate end portion from the light source unit to the outside of the plate. Display device. Further, a partition portion (12c, 13b) formed to have a light-shielding property for partitioning the display space (SP1) in which the display recess is arranged and the introduction space (SP2) in which the plate end portion is arranged is further provided. The vehicle display device according to any one of claims 1 to 4. The display recess has a bottom surface (35, 38) and a side wall surface (36, 39) connecting the bottom surface and the recess forming plate surface.
The vehicle according to any one of claims 1 to 5, wherein the side wall surface is illuminated by the light source light and shines, and the bottom surface is formed into a rough surface to diffuse and shine the light source light. Display device for.

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