JP6322489B2 - Vehicle display device - Google Patents

Description

  The present invention relates to a display device for a vehicle that is provided on an instrument panel and projects a display image toward a windshield and allows a passenger to visually recognize a virtual image of the display image reflected on the windshield.

  Conventionally, as a display device for a vehicle, a display image from a projector provided inside an instrument panel is projected on a windshield, the projected display image is reflected on the windshield, and this reflected image is displayed as a virtual image to a passenger. A head-up display (HUD) device for visual recognition has been proposed (see, for example, Patent Document 1). In the vehicle display device described in Patent Document 1, a transparent cover that allows a display image to pass through is provided in an opening of an instrument panel.

JP 2007-148092 A

  However, in the conventional vehicle display device described in Patent Document 1, the transparent cover (transmission portion) is attached to the device main body side of the vehicle display device, and this device main body is attached to the vehicle side such as a vehicle body panel. Since it is fixed, the transparent cover is not fixed to the instrument panel, and there is a possibility that the transparent cover and the instrument panel come into contact with each other due to traveling vibrations of the vehicle and noise is generated. Further, if a gap is provided by separating the transparent cover and the instrument panel so as not to generate abnormal noise, there is a problem that dust and dust enter the inside of the apparatus main body from the gap.

  The objective of this invention is providing the display apparatus for vehicles which can suppress generation | occurrence | production of the noise from the perimeter of a transmission part.

In order to solve the above-described problem, the display device for a vehicle according to the first aspect of the present invention is provided on the instrument panel, projects a display image toward the windshield, and reflects the display on the windshield. A display device for a vehicle that allows a passenger to visually recognize a virtual image of an image, the projection unit being provided on the inner side of the instrument panel and projecting the display image, and the display image projected from the projection unit being the front A transmission part that transmits toward the glass; a frame part provided with an opening that allows the display image that has passed through the transmission part to pass through; and between the transmission part and at least a part of the periphery of the opening in the frame part. and a cushioning member provided on said frame portion is made of semipermeable material that transmits light having a front frame portion positioned on the front side of the vehicle, the front frame section of the vehicle front A front peripheral edge that is provided so as to be open toward the outside and is configured such that external light from the windshield can be incident on the back side of the front frame portion, and is located on the vehicle front side of the transmission portion among the peripheral edges of the opening The cushioning material is provided between the transmission portion and the transmission portion, and the cushioning material blocks a gap between the front peripheral edge and the transmission portion .

  According to the vehicle display device of the present invention as described above, since the cushioning material is provided between at least a part of the periphery of the opening in the frame portion and the transmission portion, the periphery of the opening contacts the transmission portion. It is possible to suppress the generation of abnormal noise due to the operation. Further, since it is not necessary to form a large gap for separating the peripheral edge of the opening and the transmission portion to avoid the generation of abnormal noise, the gap can be reduced and at least a part of the gap is a cushioning material. Therefore, it is possible to prevent dust and dust from entering the inside.

  In addition, since a cushioning material is provided between the front peripheral edge of the opening and the transmission part, and the gap between the front side edge and the transmission part is blocked by this cushioning material, dust and dust from this clearance Can be prevented from entering. Therefore, even when the transmission part is provided so as to be inclined downward toward the front side of the vehicle, it is possible to prevent intrusion of dust or the like that easily collects on the front side of the vehicle along the surface of the transmission part. In addition, if a gap is formed between the front side periphery and the transmission part, this gap is reflected on the windshield and is easily seen by the passenger as a dark reflection image, which gives the passenger an uncomfortable feeling, By closing the gap with a cushioning material, it is difficult to form a dark reflected image, the uncomfortable feeling given to the passenger is reduced, and the visibility of the display image can be improved.

The vehicle display device according to claim 2 is the vehicle display device according to claim 1, wherein the cushioning material is provided between the entire periphery of the opening and the transmission portion, and A gap between the entire peripheral edge of the opening and the transmission portion is blocked.

  According to such a configuration, the cushioning material is provided between the entire periphery of the opening and the transmission part, and the clearance between the entire periphery of the opening and the transmission part is blocked by the buffering material. It is possible to more reliably prevent the intrusion of dust and dust from the door.

Vehicle display device according to claim 3 is directed to the vehicle display apparatus according to claim 1 or 2, wherein the frame portion is formed in the instrument panel and another body, its outer edge the It is characterized by being continuously attached to the instrument panel.

  According to such a configuration, since the frame portion having the opening is formed separately from the instrument panel, it is not necessary to form the opening in the instrument panel, and the positioning accuracy between the opening and the transmission portion is improved. And the occurrence of abnormal noise can be further reduced. In addition, as a display apparatus for vehicles, the frame part and opening may be formed in some instrument panels, without providing a separate frame part.

  According to the vehicle display device of the present invention, it is possible to suppress the generation of abnormal noise from the periphery of the transmission portion, and to suppress the entry of dust and dirt into the device from between the periphery of the opening and the transmission portion. Can do.

It is a perspective view which shows a part of instrument panel provided with the display apparatus for vehicles which concerns on embodiment of this invention. It is sectional drawing which shows the said display apparatus for vehicles. It is a figure which shows the display state by the said display apparatus for vehicles. It is sectional drawing which expands and shows a part of said display apparatus for vehicles. It is sectional drawing which expands and shows other one part of the said display apparatus for vehicles.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3, the vehicle display device 1 of the present embodiment is provided on the instrument panel I of the vehicle, projects a display image G1 toward the windshield F, and reflects on the windshield F. A passenger is allowed to visually recognize a virtual image G3 of the image G2. That is, as shown in FIGS. 2 and 3, the display image G1 projected from the vehicular display device 1 is reflected by the windshield F and reaches the passenger's eye range ER. When the front is viewed from the eye point EP in the range ER, the reflected display image G2 is visually recognized as a virtual image G3 ahead of the windshield F. As a result, the passenger can obtain a forward view through the windshield F and can visually recognize the virtual image G3 in the forward view.

  The vehicle display device 1 includes a device main body 2 provided on the inner side of the instrument panel I, a display unit 3 as a projection unit provided inside the device main body 2 for projecting a display image, As a frame portion having a transparent cover 4 as a transmission portion that transmits the display image projected from the display unit 3 toward the windshield F, and an opening (opening) 51 that allows the display image transmitted through the transparent cover 4 to pass therethrough. The bezel body 5 and a light guide member 6 as an irradiating means provided on the vehicle front side on the lower side (back side) of the bezel body 5 are provided. In the present embodiment, the diagonally upper left side in FIG. 1 and the left side in FIG. 2 are the front side of the vehicle, and are hereinafter simply referred to as the vehicle front side.

  The apparatus main body 2 includes a box-shaped casing 21, an optical unit 22 that is provided inside the casing 21 and guides a display image from the display unit 3 to the transparent cover 4, and a control unit (not shown). It is configured. The casing 21 is formed to open upward, and the transparent cover 4 is attached to the opening. A support member 24 is fixed to the front side of the housing 21 via a bracket 23, and the light guide member 6 is supported by the support member 24. Such a casing 21 is fixed to a vehicle main body such as a vehicle body panel in the vehicle, and is not fixed directly to the instrument panel I but has an edge.

  The optical unit 22 is configured to include a plurality of mirrors that reflect the display image projected from the display unit 3 and a plurality of lenses that are enlarged and reduced, and a virtual image G3 that is visually recognized by the passenger is focused far away on the vehicle front side. So that the projection path of the display image G1 from the display unit 3 is extended.

  The display unit 3 has a display that receives a signal from the control unit and generates a display image. The display unit 3 includes a transmissive liquid crystal display panel, for example, and can display numerical values, characters, figures, and the like. Information (display image) can be displayed as necessary. The display unit 3 is provided with a light source for illumination such as a backlight, and projects visible information displayed by the display device as a light beam.

  The transparent cover 4 is a rectangular face member that has translucency and has a downwardly convex curved surface, and is supported by the housing 21 so as to be lowered forward toward the vehicle front side.

  The bezel body 5 has an opening 51 at the center thereof, and an outer edge 52 is continuously provided on the instrument panel I, and is supported by the instrument panel I. The opening 51 has a rectangular edge (periphery) 51A along the edge of the transparent cover 4, and allows the display image G1 transmitted through the transparent cover 4 to pass therethrough. Between the edge 51 </ b> A of the opening 51 and the surface of the transparent cover 4, the cushioning material 7 is provided along the entire periphery of the edge 51 </ b> A of the opening 51. The cushioning material 7 is made of an elastic material made of a foamable resin such as sponge, and is attached to either or both of the edge 51 </ b> A of the opening 51 and the surface of the transparent cover 4. On the other hand, the outer edge portion 52 is continuous without a step at the same height as the surface Ia of the instrument panel I, and is attached so that no gap is formed between the outer edge portion 52 and the instrument panel I.

  4 and 5, the bezel body 5 has a frame surface portion 53 that is inclined downward from the outer edge portion 52 toward the edge 51 </ b> A of the opening 51, and the frame surface portion 53 has an outer edge. The bezel body 5 is formed in an upwardly convex curved surface shape in which the gradient gradually decreases from the portion 52 toward the edge 51A of the opening 51. That is, the entire surface of the bezel body 5 is directed toward the opening 51 at the center. It is formed in a mortar shape. Further, the bezel body 5 has a front frame portion 5A located on the front side of the vehicle, a pair of horizontal frame portions 5B located on the left and right sides, and a rear frame portion 5C located on the rear side of the vehicle. It is formed in a rectangular ring shape.

  Such a bezel body 5 is made of a thermoplastic resin having an appropriate thickness, and is formed by, for example, injection molding. This thermoplastic resin is a translucent material that transmits light, and preferably has a transmittance of about 20% after molding. Further, the frame surface portion 53 of the bezel body 5 is provided with the same surface treatment as the surface Ia of the instrument panel I. The surface treatment includes an uneven finishing process for forming unevenness at the time of injection molding, and a coating process for coating the surface after molding, and includes a frame surface portion 53 after the surface treatment, and a surface Ia of the instrument panel I. Are set to have the same glossiness and color.

  As shown in FIG. 4, the front frame portion 5A of the bezel body 5 is provided with the back side open toward the vehicle front side, and the light guide member 6 is provided below the front frame portion 5A. Yes. The light guide member 6 is a prism that reflects external light incident from the front glass F on the front side of the vehicle and irradiates the light toward the back surface of the front frame portion 5A. It is formed with an appropriate polygonal cross section having a plurality of reflecting surfaces. In addition, sawtooth-shaped irregularities are formed on the bottom surface of the light guide member 6, and unevenness occurs in the illuminance of the light irradiated to the front frame portion 5A by diffusing the light reflected inside the light guide member 6. It has become difficult.

  The support member 24 that supports the light guide member 6 is made of a metal plate or the like, the surface on the light guide member 6 side is a mirror surface, and reflects light emitted from the light guide member 6 toward the light guide member 6. It is configured. As described above, the light guide member 6 and the support member 24 are provided below the front frame portion 5 </ b> A of the bezel body 5, so that external light incident from the windshield F is reflected and diffused inside the light guide member 6. At the same time, a part of the light is reflected by the support member 24 and irradiated from the upper surface of the light guide member 6 toward the back surface of the front frame portion 5A as dispersed light. The irradiated dispersed light passes through the front frame portion 5A of the semi-transparent bezel body 5 and is emitted above the front frame portion 5A so that the frame surface portion 53 of the front frame portion 5A looks bright. become.

  In such a front frame portion 5A, the cushioning material 7 is provided between the edge 51A on the opening 51 side and the transparent cover 4, and the gap between the edge 51A and the transparent cover 4 is closed. . Accordingly, the gap between the edge 51A and the transparent cover 4 is not directly visible, and the boundary between the edge 51A and the transparent cover 4 is dark from the passenger as a reflected image reflected on the windshield F shown in FIG. It is difficult to see. Furthermore, the gap between the edge 51 </ b> A of the bezel body 5 is closed on the vehicle front side of the transparent cover 4 provided at the front lower side so that dust and dust do not enter the inside of the instrument panel I. It has become.

  As shown in FIG. 5, the lateral frame portion 5 </ b> B of the bezel body 5 is provided with the outer edge portion 52 in contact with the left and right instrument panels I. In the outer edge portion 52, the frame surface portion 53 of the lateral frame portion 5 </ b> B and A surface Ia of the instrument panel I is provided continuously without a step. Since the frame surface portion 53 and the surface Ia of the instrument panel I are continuously provided in this way, the reflected image Ir of the instrument panel I is reflected as a reflected image reflected on the windshield F shown in FIG. The contrast at the boundary of the bezel body 5 with the reflected image 5r can be suppressed so as not to stand out.

  Further, in the horizontal frame portion 5B, the cushioning material 7 is provided between the edge 51A on the opening 51 side and the transparent cover 4, and the gap between the edge 51A and the transparent cover 4 is closed. Accordingly, the gap between the edge 51A and the transparent cover 4 is not directly visible, and the boundary between the edge 51A and the transparent cover 4 is dark from the passenger as a reflected image reflected on the windshield F shown in FIG. It is difficult to see. Further, the gap with the edge 51 </ b> A of the bezel body 5 is closed, so that dust and dust do not enter the inside of the instrument panel I.

  The transparent cover 4 is provided so as to be inclined forward and downward toward the vehicle front side, and the front frame portion 5A of the bezel body 5 rises from the front edge of the vehicle to the vehicle front side in a convex shape that is upwardly convex. Is provided. Due to the arrangement of the transparent cover 4 and the front frame portion 5A of the bezel body 5, when the incident angle of external light (sunlight) is low, the external light reaches the transparent cover 4 by being blocked by the front frame portion 5A. It is supposed not to. On the other hand, when the incident angle (solar altitude) of outside light increases, the incident angle with respect to the transparent cover 4 that falls forward is increased although it reaches the transparent cover 4. Even if this outside light is reflected by the windshield F, it does not go to the eye range ER side, so that the passenger's illusion can be prevented.

  In the vehicle display device 1 of the present embodiment as described above, the reflected image Ir of the instrument panel I, the reflected image 5r of the bezel body 5, and the transparent cover are reflected as the reflected image reflected on the windshield F shown in FIG. In the reflection image 4r of No. 4, the change in brightness (contrast) between the boundary portions is not conspicuous, and the display image G2 is lifted and viewed in the reflection image 4r of the transparent cover 4. Here, the shape of the instrument panel I and the angle and curvature of the windshield F vary depending on the vehicle model, and even in the same vehicle model, the finish (unevenness and color) of the surface Ia of the instrument panel I may be different. Accordingly, the shape, dimensions, material, surface treatment, and the like of the bezel body 5 and the transparent cover 4 are set according to the individual instrument panel I and the windshield F.

  According to this embodiment, there are the following effects. That is, since the cushioning material 7 is provided between the edge 51 </ b> A of the opening 51 in the bezel body 5 and the transparent cover 4, the generation of noise due to the contact between the edge 51 </ b> A and the transparent cover 4 is suppressed. can do. In addition, since it is not necessary to form a large gap for separating the edge 51A and the transparent cover 4 to avoid the generation of abnormal noise, the gap can be reduced and the gap is blocked by the buffer material 7. Therefore, intrusion of dust and dust into the inside can be suppressed. In particular, since the gap between the edge 51 </ b> A along the entire circumference of the opening 51 and the transparent cover 4 is closed by the buffer material 7, it is possible to prevent the entry of dust and the like.

  Further, since the cushioning material 7 is provided between the edge 51A of the opening 51 in the front frame portion 5A and the horizontal frame portion 5B that are easily reflected on the windshield F, and the transparent cover 4, the As a reflection image, it is suppressed that the boundary part (gap) between the reflection image 5r of the bezel body 5 and the reflection image 4r of the transparent cover 4 is visually recognized darkly, and such a dark part is not noticeable and is given to the passenger. Discomfort can be reduced. Therefore, the visibility of the virtual image G3 of the display image G2 can be improved by reducing the parallax by making the reflection images Ir, 5r, 4r around the display image G2 inconspicuous. In particular, the visibility of the display image G2 can be further improved because the boundary portion between the edge 51A of the front frame portion 5A and the transparent cover 4 that is conspicuous as a reflected image from the windshield F is not visually recognized darkly.

  Further, even when the transparent cover 4 is provided so as to be inclined downward toward the front side of the vehicle, and dust or the like tends to accumulate on the front side of the vehicle along the surface of the transparent cover 4, the front cover 5A Since the cushioning material 7 is provided between the end edge 51A and the transparent cover 4, entry of dust or the like can be prevented. Further, when a gap is formed between the edge 51A of the front frame portion 5A of the bezel body 5 and the transparent cover 4, light from the light guide member 6 provided below the front frame portion 5A is emitted from the gap. Although there is a possibility of leakage, light leakage can be prevented by closing the gap with the buffer material 7, and interference with the display image G1 can be suppressed.

  Further, the opening 51 is formed in the bezel body 5 that is separate from the instrument panel I, and the cushioning material 7 is provided between the edge 51 </ b> A of the opening 51 and the transparent cover 4. The positioning accuracy between the edge 51A of the 51 and the transparent cover 4 can be increased, and the occurrence of abnormal noise can be further reduced. Furthermore, since the bezel body 5 is separated from the instrument panel I, the degree of freedom in the procedure for assembling the vehicle display device 1 to the vehicle can be increased. And the apparatus main body part 2 can be firmly supported because the apparatus main body part 2 is being fixed to vehicle main bodies, such as a vehicle body panel. On the other hand, since the bezel body 5 is fixed to the instrument panel I, steps, inclinations, and positional deviations at the boundary portions can be suppressed, and the appearance of the instrument panel I can be improved. .

  In addition, this invention is not limited to the said embodiment, Including other structures etc. which can achieve the objective of this invention, the deformation | transformation etc. which are shown below are also contained in this invention. For example, in the above-described embodiment, the bezel body 5 formed separately from the instrument panel I is used as the frame portion having the opening. However, the frame portion is not limited to this, and the frame portion is a part of the instrument panel. It may be integrally formed. Moreover, in the said embodiment, although the shock absorbing material 7 was provided between the surfaces of the transparent cover 4 along the perimeter of the edge 51A of the opening part 51 of the bezel body 5, it is not restricted to this, A shock absorbing material May be provided at least at a part of the peripheral edge of the opening, for example, may be provided only at a position along the edge 51A in the front frame portion 5A, or provided intermittently along the peripheral edge of the opening. May be.

  Further, the frame portion is not limited to a mortar shape having a downward slope toward the opening 51 like the bezel body 5 of the above embodiment, and is formed substantially flat with the surface of the instrument panel. It may also be one that is formed with an upward slope toward the opening instead of a downward slope. Furthermore, in the said embodiment, although the transparent cover 4 as a permeation | transmission part was provided in the front downward toward the vehicle front side, not only this but the permeation | transmission part may be provided substantially horizontal, It may be provided so as to be raised or inclined left and right.

  Moreover, in the said embodiment, the bezel body 5 as a frame part is formed from a translucent material, and is comprised with a light transmittance, and the light guide member 6 as an irradiation means under the front frame part 5A. However, the frame portion does not have to be light transmissive, and in this case, the irradiation means can be omitted. The irradiation means is not limited to the one provided below the front frame portion 5A, and may be provided below the entire bezel body 5 including the horizontal frame portion 5B and the rear frame portion 5C. What is necessary is just to be provided in at least any one of 5 A of frame parts, the horizontal frame part 5B, and the rear frame part 5C. Further, the irradiating means is not limited to the light guide member 6 that irradiates and transmits external light by being incident, transmitted, and reflected, and may include a light emitting device that emits light by power, a sensor that detects external light, and the like.

  In addition, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, the invention has been illustrated and described primarily with respect to particular embodiments, but may be configured for the above-described embodiments without departing from the scope and spirit of the invention. Various modifications can be made by those skilled in the art in terms of materials, quantity, and other detailed configurations. Therefore, the description limiting the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such is included in this invention.

DESCRIPTION OF SYMBOLS 1 Display apparatus for vehicles 2 Image projector 3 Display unit (projection part)
4 Transparent cover (transmission part)
5 Bezel body (frame)
7 cushioning material 51 opening (opening)
51A edge (periphery of opening)
52 Outer edge F Windshield G1 Display image G3 Virtual image I Instrument panel

Claims (3)

A display device for a vehicle that is provided on an instrument panel and projects a display image toward a windshield, and allows a passenger to visually recognize a virtual image of the display image reflected on the windshield,
A projection unit provided on the inner side of the instrument panel for projecting the display image;
A transmission unit that transmits the display image projected from the projection unit toward the windshield;
A frame part provided with an opening through which the display image transmitted through the transmission part is passed;
A cushion provided between at least a part of the periphery of the opening in the frame and the transmission part;
Equipped with a,
The frame portion is made of a translucent material that transmits light, and has a front frame portion positioned on the vehicle front side. The front frame portion is provided open toward the vehicle front side, and the windshield The outside light from is configured to be incident on the back side of the front frame portion,
Of the peripheral edge of the opening, the cushioning material is provided between the front peripheral edge located on the vehicle front side of the transmission portion and the transmission portion, and the buffer material provides a gap between the front peripheral edge and the transmission portion. A vehicular display device characterized by being closed.   The cushioning material is provided between the entire periphery of the opening and the transmission part, and a gap between the entire periphery of the opening and the transmission part is closed by the buffering material. The vehicle display device described in 1. The frame portion is formed in the instrument panel and another body, a display for a vehicle according to claim 1 or 2 its outer edge, characterized in that it is mounted in succession in the instrument panel apparatus.

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