JP6304757B2 - Bezel body and vehicle display device - Google Patents

Description

  The present invention relates to a bezel body disposed on an instrument panel of a vehicle and a vehicle display device including the bezel body.

  Conventionally, a vehicle display device as a head-up display device that projects an image onto a windshield of a vehicle is provided in an instrument panel (see, for example, Patent Document 1). As shown in FIG. 6, the vehicle display device 700 described in Patent Document 1 is mounted in an instrument panel I having an opening H provided on a wall A facing the windshield F, and the front display through the opening H. An image is projected onto the glass F. In such a vehicular display device 700, for example, a transparent cover C that closes the opening H in order to prevent dust or moisture from entering the opening H may be provided. The light may be reflected by the cover C and head toward the passenger's eye point EP, which may cause discomfort.

  Therefore, a vehicle display device 800 shown in FIG. 7 is conceivable as a configuration for avoiding that external light travels toward the passenger's eye point EP. The vehicle display device 800 is provided in the instrument panel I. The instrument panel I has an opening H formed in a wall A facing the windshield F, and a front bezel portion W provided on the front side of the opening H extends from the front side to the rear side (left side in FIG. 8). A light-transmitting falling wall portion Wa that gradually goes downward as it goes from side to side) is formed. The opening H is provided with a cover C that gradually moves upward as it goes from the front side to the rear side of the vehicle. The vehicle display device 800 projects an image on the windshield F through the opening H. In such a configuration, since the descending wall portion Wa is provided and the vehicle front side of the cover C is located below the rear side, it is possible to make it difficult for outside light to reach the cover C, and It can suppress that the reflected external light goes to a passenger's eye point EP.

JP 2008-87733 A JP 2012-200032 A

  In the above-described configuration, outside light does not strike the vicinity of the descending wall portion Wa in the front bezel portion W, so that a difference in brightness between the descending wall portion Wa and its peripheral portion becomes large, thereby reflecting on the windshield F. The inconvenience can be conspicuous. Therefore, the descending wall portion Wa is made of a light transmissive material, the front end portion of the front bezel portion W is disposed above the opposing wall A, and the front end portion and the opposing wall of the front bezel portion W are arranged. The structure which takes in external light from the clearance gap with A and illuminates the descent | fall wall part Wa from the inner surface side can be considered. According to this configuration, the external light transmitted through the descending wall portion Wa is directed toward the windshield F, so that the reflection can be made inconspicuous and the discomfort given to the passenger can be suppressed.

  However, according to the above-described configuration, the descent wall Wa is illuminated by the light from the oncoming vehicle light or the light from the street at night, and the reflection of the descent wall Wa on the windshield may be conspicuous. there were.

  An object of the present invention is to provide a bezel body and a vehicle display device that can effectively suppress discomfort given to a passenger by making the reflection on the windshield less noticeable.

In order to solve the above-mentioned problems and achieve the object, the invention described in claim 1 is fitted into an instrument panel of a vehicle, and an image projector disposed in the instrument panel projects an image on a windshield. A bezel member that forms part or all of the periphery of the opening for
In the bezel member, the front bezel portion arranged on the front side of the vehicle with respect to the opening is more than the instrument panel so that the front end of the vehicle has a gap between the instrument panel and the front bezel portion. A light-transmitting descending wall portion that is disposed above and is provided so as to gradually reach the opening toward the rear side of the vehicle. A bezel body for illuminating a descending wall portion, comprising a light adjusting means for adjusting the amount of light incident from the gap.

  The invention according to claim 2 is characterized in that the light adjusting means adjusts the light amount according to a detection result of an illuminance sensor for detecting external illuminance or an on / off state of a light switch. Is the body.

  According to a third aspect of the present invention, there is provided an image projector disposed in an instrument panel of a vehicle, and a peripheral edge of an opening that is fitted into the instrument panel and that the image projector projects an image on a windshield. A vehicle display device comprising a bezel body having a bezel member forming part or all, wherein the bezel body is constituted by the bezel body according to claim 1 or 2. It is a display device for vehicles.

  As described above, according to the first or third aspect of the invention, the front end portion of the front bezel portion is disposed above the instrument panel so as to leave a gap with the instrument panel. For this reason, the descending wall portion can be illuminated by the external light incident from the gap. Furthermore, the light adjustment means increases the amount of light (external light) that enters the gap during the daytime when the outside is bright, and prevents light from entering the gap during nighttime when the outside is dark. It is possible to prevent the descending wall portion from being illuminated by light from, for example. Thereby, the reflection of the descending wall portion on the windshield can be made inconspicuous, and the discomfort given to the passenger can be effectively suppressed.

  According to the second aspect of the present invention, the light adjustment means adjusts the amount of light according to the detection result of the illuminance sensor or the on / off state of the light switch. can do.

It is a perspective view which shows a mode that the display apparatus for vehicles concerning one Embodiment of this invention was assembled | attached to the instrument panel. It is the figure which looked at the display apparatus for vehicles of Drawing 1 from the front side of vehicles. It is the II-II sectional view taken on the line of the vehicle display device of FIG. It is a disassembled perspective view of the display apparatus for vehicles of FIG. 4A is an enlarged partial cross-sectional view of the vehicle display device of FIG. 3 with the shutter opened, and FIG. 4B is an enlarged partial cross-sectional view of the vehicle display device of FIG. 3 with the shutter closed. It is sectional drawing which shows the display apparatus for vehicles of a prior art. It is sectional drawing which shows the display apparatus for vehicles of another prior art.

  A bezel body and a vehicle display device according to an embodiment of the present invention will be described with reference to FIGS. The vehicle display device 1 according to the present embodiment is attached to an instrument panel I of a vehicle V and used as a head-up display device that projects an image on a windshield F as shown in FIGS. Is. In addition, the front-back direction of the vehicle V in this embodiment, the left-right direction, the front side and back side in the front-back direction, and upper and lower sides are as shown in FIG.1 and FIG.3.

  As shown in FIGS. 3 and 4, the vehicle display device 1 includes an image projector 10 disposed in the instrument panel I of the vehicle V, and a bezel body 15 disposed in the instrument panel I. I have.

  As shown in FIG. 3, the image projector 10 includes a display source 11 for projecting an image, a reflection unit 12 that reflects an image from the display source 11, and a synthetic resin that houses the display source 11 and the reflection unit 12. And a housing 13 made of metal. The housing 13 includes an upper wall portion 13a, a lower wall portion 13b disposed opposite to the upper wall portion 13a, and a peripheral wall portion 13c connected to the peripheral edges of the upper wall portion 13a and the lower wall portion 13b. The upper wall portion 13a is provided with an opening 13d disposed so as to overlap with an opening 20a of a bezel member 20 described later. The image projector 10 reflects the image projected by the display source 11 by the reflection unit 12 and projects the image onto the windshield F through the opening 13d. Thereby, the passenger of the vehicle V can be visually recognized as an image displayed on the windshield F.

  3 and 4, the bezel body 15 includes a bezel member 20, a light guide member 30, a support member 40 as a case member, a shutter mechanism 50 as a light adjusting unit, an illuminance sensor SS, And a cover 60.

  The bezel member 20 is made of, for example, a semi-transparent (light transmissive) synthetic resin and has an annular shape in plan view having an opening 20a at the center. Further, the bezel member 20 is provided so as to be gradually lowered as it goes from the outer peripheral edge to the inner peripheral edge, and to be inclined so that the inclination thereof increases as it approaches the inner peripheral edge. The bezel member 20 is fitted in a hole provided in the instrument panel I, and the image projector 10 disposed in the instrument panel I covers the entire periphery of the opening 20a for projecting an image on the windshield F. Forming.

  The front bezel portion 21 disposed on the front side of the vehicle V with respect to the opening 20a in the bezel member 20 has the instrument 21 so that a gap S is formed between the front end portion 21a of the vehicle V and the instrument panel I. Arranged above panel I. Further, the front bezel portion 21 has a descending wall portion 22 that curves downward so as to gradually go downward and reach the opening 20a as it goes from the front side to the rear side of the vehicle V, and its inclination increases as it approaches the opening 20a. Have.

  When the bezel member 20 is fitted into the instrument panel I, a part of the front side of the outer peripheral edge of the bezel member 20 (that is, the end 21a of the front bezel portion 21 on the front side of the vehicle V) is more than the instrument panel I. It arrange | positions upwards (FIG. 2), and arrange | positions so that other parts other than the said part of an outer periphery may be connected with the instrument panel I smoothly (FIG. 1). At this time, the opening 20a of the bezel member 20 and the opening 13d of the image projector 10 are arranged so as to overlap in the vertical direction. In addition, the bezel member 20 is subjected to, for example, the adjustment of color and surface processing similar to the instrument panel I in order to prevent the difference in reflection on the windshield F of the instrument panel I from being noticeable. Has been done.

  The light guide member 30 is formed in a substantially rectangular plate shape in plan view using a material with high transparency such as synthetic resin such as glass, acrylic, and polycarbonate. The light guide member 30 is disposed below the front bezel portion 21, guides light incident from the gap S described above, irradiates the front bezel portion 21 (that is, the descending wall portion 22), and illuminates the light. In the cross-sectional view in the front-rear direction (FIG. 3), the light guide member 30 is formed thick on the front side, thin on the rear side, and a portion between the thickly formed portion and the thinly formed portion is from the front. It is formed so as to become thinner gradually toward the rear. Specifically, the downward facing surface of the light guide member 30 is formed in a flat shape, and the upward facing surface is formed with an inclined surface that gradually descends from the front toward the rear in an intermediate portion in the front-rear direction. .

  The support member 40 is disposed below the light guide member 30 and supports the light guide member 30. The support member 40 is disposed such that the front end portion is provided at substantially the same height as the upper surface of the instrument panel I, and the front end surface 30 a of the light guide member 30 faces the gap S. Thereby, the external light irradiated from the front side through the windshield F can be taken in from the front end surface 30a of the light guide member 30 through the gap S. The support member 40 is fixed to a pair of leg portions 13 e that protrudes forward from the peripheral wall portion 13 c of the housing 13.

  The shutter mechanism 50 includes a mechanical shutter 51 disposed in front of the front end portion 21a of the front bezel portion 21, a drive unit (not shown) that drives the shutter 51, and a control unit (not shown) that controls the drive unit. And.

  The shutter 51 is composed of a light shielding member. The shutter 51 is located below the gap S and is in an open position (FIG. 5A) where light enters from the gap S, and a closed position (blocking the light incident from the gap S by closing the gap S). It is provided so as to be movable between FIG. By adjusting the position of the shutter 51, the amount of light incident from the gap S can be adjusted.

  The illuminance sensor SS is a sensor that detects external brightness, and is installed on the instrument panel I in front of the vehicle V. The detection result of the illuminance sensor SS is input to the control unit of the shutter mechanism 50. The control unit controls the drive unit based on the detection result from the illuminance sensor SS to adjust the opening / closing position of the shutter 51.

  The cover 60 is formed in a thin plate shape using a highly transparent material such as synthetic resin such as glass, acrylic, polycarbonate, and the like, and is fixed to the periphery of the opening 20a so as to close the opening 20a of the bezel member 20. Attached. The cover 60 is disposed so as to go upward as it goes from the front side to the rear side of the vehicle V (FIG. 3). Thereby, it can control that the light which hits cover 60 goes directly to a passenger's eye point.

  Next, the operation of the vehicle display device 1 having the above-described configuration will be described. When the controller of the shutter mechanism 50 determines that the outside is bright daytime based on the detection result from the illuminance sensor SS, the shutter 51 is driven to the open position as shown in FIG. Thereby, external light can be incident from the gap S through the windshield F. External light incident from the gap S through the front glass F enters the front end face 30 a of the light guide member 30. The light travels toward the rear side while being reflected by the upper surface or the lower surface of the light guide member 30. Further, a part of the external light reaching the upper surface is emitted toward the front bezel portion 21 and the front bezel portion 21 is illuminated.

  On the other hand, when the control unit of the shutter mechanism 50 determines that the outside is a dark night based on the detection result from the illuminance sensor SS, the shutter 51 is driven to the closed position as shown in FIG. Thereby, the light incident from the gap S is blocked by the shutter 51, and for example, the front bezel portion 21 is not illuminated by the light from the oncoming vehicle or the light from the street.

  According to the above-described embodiment, the front end portion 21a of the front bezel portion 21 is disposed above the instrument panel I so as to leave a gap S between the instrument panel I and the gap. The falling wall portion 22 can be illuminated by external light incident from S. Further, the shutter mechanism 50 increases the amount of light (external light) incident from the gap S during the daytime when the outside is bright, and prevents light from entering the gap S during nighttime when the outside is dark. It is possible to prevent the descending wall portion 22 from being illuminated by light from the street or the street. Thereby, the reflection on the windshield F of the falling wall part 22 can be made inconspicuous, and the discomfort given to the passenger can be effectively suppressed.

  Further, according to the embodiment described above, the shutter mechanism 50 adjusts the amount of light according to the detection result of the illuminance sensor SS, so that the amount of light incident from the gap S can be adjusted according to the external brightness. .

  In addition, according to embodiment mentioned above, although the front bezel part 21 was efficiently illuminated with the external light which injected from the clearance gap S using the light guide member 30, it is not restricted to this. The light guide member 30 is not essential and may be omitted. Further, instead of the light guide member 30, a reflection plate that reflects light incident from the gap S toward the front bezel portion 21 may be provided.

  Further, according to the embodiment described above, the shutter mechanism 50 having the mechanical shutter 51 is used as the light adjusting unit, but the present invention is not limited to this. For example, a liquid crystal that adjusts the amount of transmitted light may be used instead of the shutter 51. In this case, the control unit controls the liquid crystal so that the light can be incident from the gap S during the daytime when the outside light is bright, and controls the liquid crystal so that the light from the gap S can be blocked at the night when the outside is dark.

  Further, a photochromic may be used instead of the shutter mechanism 50. Photochromic is a material whose color changes with incident light, and the photochromic used in this embodiment has a higher color density as the incident light is weaker and blocks light incident from the gap S. In addition, the stronger the incident light, the closer the color density is to be transparent, and more light can be incident from the gap S.

  Further, according to the above-described embodiment, the control unit (not shown) of the shutter mechanism 50 controls the shutter 51 so as to be in either the open position or the closed position, but the present invention is not limited to this. For example, the opening amount of the shutter 51 may be increased as the illuminance detected by the illuminance sensor SS is higher, and the opening amount of the shutter 51 may be decreased as the illuminance is lower.

  Further, according to the above-described embodiment, the control unit (not shown) of the shutter mechanism 50 controls the opening / closing of the shutter 51 based on the detection result of the illuminance sensor SS, but is not limited thereto. It is also conceivable to open and close the shutter 51 based on the on / off state of a light switch that turns on / off the headlight of the vehicle instead of the illuminance sensor SS. In this case, for example, if the light switch is off, it is determined that the daylight is bright daytime, and the control unit controls the shutter 51 to the open position as shown in FIG. On the other hand, if the light switch is on, it is determined that it is nighttime, and the control unit controls the shutter 51 to the closed position as shown in FIG.

  Moreover, according to embodiment mentioned above, although the bezel member 20 was formed in planar view cyclic | annular form and was the structure which has the front bezel part 21, it is not restricted to this. For example, only the front bezel portion 21 of the bezel member 20 may be formed, only the peripheral edge of the opening 20a on the front side of the vehicle V may be formed, and the remaining peripheral edge of the opening 20a may be formed by the instrument panel I.

  Further, according to the above-described embodiment, the entire bezel member 20 is formed of a light-transmitting synthetic resin, but is not limited thereto. It is sufficient that at least the descending wall portion 22 is light transmissive.

  Further, the above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Display apparatus for vehicles 10 Image projector 15 Bezel body 20 Bezel member 20a Opening 21 Front bezel part 21a End part 22 Falling wall part 50 Shutter mechanism (light adjustment means)
I instrument panel F windshield S gap SS illuminance sensor V vehicle

Claims (3)

A bezel member that is fitted into an instrument panel of a vehicle and an image projector disposed in the instrument panel forms part or all of the periphery of an opening for projecting an image on a windshield,
In the bezel member, the front bezel portion arranged on the front side of the vehicle with respect to the opening is more than the instrument panel so that the front end of the vehicle has a gap between the instrument panel and the front bezel portion. It has a light-transmitting descending wall portion that is disposed above and is provided so as to gradually reach the opening toward the rear side of the vehicle.
A bezel body that illuminates the descending wall with light incident from the gap;
A bezel body comprising light adjusting means for adjusting the amount of light incident from the gap. The bezel body according to claim 1, wherein the light adjusting unit adjusts the light amount according to a detection result of an illuminance sensor that detects external illuminance or an on / off state of a light switch. An image projector disposed in an instrument panel of a vehicle, and a bezel member that is fitted into the instrument panel and forms part or all of a peripheral edge of an opening for projecting an image onto a windshield by the image projector A vehicle display device comprising: a bezel body having
The vehicle display device, wherein the bezel body is configured by the bezel body according to claim 1.

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