JP2013120094A - Display device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device for a vehicle, excellent in visibility and designability.SOLUTION: In a head-up display device 10 including a display device body 11 for emitting display light and a combiner 12 which is fixed on an upper part of the display device body 11 and to which the display light emitted from the display device body 11 is projected, the combiner 12 includes a display area A to which the display light is projected and a transparent transmission part B formed at least on one side of the display area A.

Description

  The present invention relates to a vehicle display device that projects a virtual image on a combiner and visually recognizes the virtual image from an eye point of the vehicle.

  In recent years, along with the increase and diversification of information required by the driver during driving, a head-up display (HUD: Head Up Display) device, etc. that displays a virtual image on a combiner for visualizing particularly urgent information, etc. A vehicle display device is mounted on a vehicle such as an automobile or a train.

  As this type of vehicle display device, a device that projects a horizontally long and relatively large virtual image on a combiner is known (see, for example, Patent Document 1).

Japanese Utility Model Publication No. 2-59027

  According to the vehicle display device described above, it is possible to obtain the necessary information by visually recognizing the horizontally long virtual image projected on the combiner. However, in recent years, there has been a demand for a vehicle display device that is further excellent in visibility and design. ing.

  This invention is made | formed in view of the situation mentioned above, The objective is to provide the display apparatus for vehicles excellent in visibility and design property.

In order to achieve the above-described object, the vehicle display device according to the present invention is characterized by the following (1) to (4).
(1) a display device main body that emits display light;
A combiner that is fixed to the upper portion of the display device body and that projects display light emitted from the display device body; and
A vehicle display device comprising:
The combiner includes a display area on which the display light is projected and a transparent transmission portion provided on at least one side of the display area.
(2) The vehicle display device having the configuration of (1) above,
The display device main body includes an image projection unit that projects display light different from the display light projected onto the display region onto the transparent transmission unit.
(3) A vehicle display device having the configuration (1) or (2) above,
The combiner has an integrally formed coupling stay, and is fixed to the display device body by coupling the coupling stay to the display device body.
(4) A vehicle display device having any one of the constitutions (1) to (3),
The combiner is darkened in the width direction on the lower side of the display area and the transparent transmission part.

In the vehicle display device having the configuration (1), the combiner onto which the display light from the display device body is projected has a transparent transmission part on at least one side of the display area onto which the display light is projected. As a result, the presence of the transparent transmissive portion makes it possible to widen the combiner while ensuring good visibility, creating a sense of unity with the display in the display area and improving the design.
In the vehicular display device having the configuration (2), the design can be further improved and the display function can be further improved by projecting a display different from the display in the display area onto the transparent transmission portion. Can do.
In the vehicular display device having the configuration (3), the combiner can be fixed to the display device body very easily by connecting the connecting stay integrally formed with the combiner to the display device body, which greatly improves the assembling performance. Can be improved.
In the vehicle display device having the above configuration (4), the influence of external light on the display projected on the display area is reduced by darkening the lower side of the display area and the transparent transmission portion of the combiner in the width direction. In addition, it is possible to suppress a problem that external light is reflected and irradiated into the vehicle.

  ADVANTAGE OF THE INVENTION According to this invention, the display apparatus for vehicles excellent in visibility and design property can be provided.

  The present invention has been briefly described above. Further, details of the present invention will be further clarified by reading through the modes for carrying out the invention described below with reference to the accompanying drawings.

FIG. 1 is a perspective view of the head-up display device according to the first embodiment. FIG. 2 is a front view of the combiner of the head-up display device according to the first embodiment. FIG. 3 is a perspective view of a coupling portion between the display device main body and the coupling stay of the combiner. FIG. 4 is a cross-sectional view of the head-up display device according to the first embodiment. FIG. 5 is an exploded perspective view of the head-up display device according to the first embodiment. FIG. 6 is a perspective view of a head-up display device according to the second embodiment. FIG. 7 is a front view of the combiner of the head-up display device according to the second embodiment. FIG. 8 is a cross-sectional view of the head-up display device according to the second embodiment.

Hereinafter, an example of an embodiment according to the present invention will be described with reference to the drawings.
(First embodiment)
First, the vehicle display device according to the first embodiment will be described.

  1 is a perspective view of the head-up display device according to the first embodiment, FIG. 2 is a front view of the combiner of the head-up display device according to the first embodiment, and FIG. 3 is a combined stay of the display device main body and the combiner. FIG. 4 is a cross-sectional view of the head-up display device according to the first embodiment, and FIG. 5 is an exploded perspective view of the head-up display device according to the first embodiment.

  As shown in FIG. 1, a head-up display device 10 that is a vehicle display device according to the present embodiment includes a display device body 11 and a combiner 12 fixed to the upper portion of the display device body 11.

  The display device body 11 is accommodated in a dashboard of the vehicle, and display light is irradiated from the display device body 11 to the combiner 12.

  The combiner 12 is disposed on the dashboard of the vehicle and irradiated with display light from the display device body 11. Thereby, a virtual image is projected on this combiner 12, and this virtual image is visually recognized from the eye point of the driver of the vehicle.

  The combiner 12 is molded from a synthetic resin, and has a translucent part 21 having translucency as shown in FIG. The translucent portion 21 has a display area A at the center, and the display area A is irradiated with display light from the display device body 11 to form a virtual image. This virtual image is, for example, an information display H1 such as the traveling speed of the vehicle, the remaining amount of fuel or battery, or the temperature of the drive mechanism.

  Moreover, the translucent part 21 of this combiner 12 is made into the transparent permeation | transmission part B on the both sides which are the outer sides of the display area A. FIG. The transparent transmission part B is an area that can be recognized as transparent when visually observed.

  The lower side of the light transmitting part 21 having the display area A and the transparent transmitting part B in the combiner 12 is a colored area C. The colored region C is colored black over the width direction by printing or painting, for example. In addition, a hood portion 23 that protrudes toward the display light irradiation side along the upper edge is integrally formed on the upper portion of the light transmitting portion 21 of the combiner 12, and the hood portion 23 is colored, for example, black. ing. The hood portion 23 is formed by two-color molding using a black resin when the combiner 12 is molded.

  The combiner 12 is provided with the black colored region C and the black hood portion 23, so that the influence of the external light on the information display H1 projected on the display region A is suppressed, and the external light is reflected. Irradiation into the vehicle is suppressed.

  Note that the color of the colored region C and the hood portion 23 is not limited to black, and may be a dark color such as dark gray, for example.

  A part of the colored region C of the combiner 12 is provided with a display unit 25, and a warning display H2 such as various warnings is displayed on the display unit 25.

  As shown in FIG. 3, the combiner 12 is integrally formed with a connecting stay 27 extending in the horizontal direction in the vicinity of both side portions at the lower end thereof. These coupling stays 27 are coupled to the display device body 11 by screws 28. Thereby, the combiner 12 is fixed to the upper part of the display device body 11. Note that the structure for fixing the combiner 12 to the display device main body 11 is not limited to the structure in which the coupling stay 27 is fastened and fixed by the screws 28, and other fixing structures may be used. Further, the coupling position of the combiner 12 with respect to the display device body 11 is not limited to the vicinity of both sides of the combiner 12.

  Next, a specific structure of the head-up display device 10 will be described.

  As shown in FIGS. 4 and 5, the display device main body 11 constituting the head-up display device 10 has a case 30 molded from a synthetic resin or the like. In this case 30, an image forming assembly 31 is provided. It is assembled. The case 30 is formed with a vehicle body mounting portion 30a that protrudes forward, and these vehicle body mounting portions 30a are held by a clip 29 on a bracket or the like in the dashboard.

  The image forming assembly 31 includes a turn lens 32, a half-wave plate 33, a shield case 34, a TFT panel 35, an LCD panel 36, a diffusion sheet 37, a backlight case 38, a lens array 39, a turn prism 40, and a backlight substrate 41. The heat transfer sheet 42 and the heat sink 43 are assembled to the case 30 in order and fixed to the case 30 with screws 44.

  In the image forming assembly 31, light emitted from a light source 45 such as an LED provided on the backlight substrate 41 is collected by a lens array 39, diffused by a diffusion sheet 37, and irradiated to the TFT panel 35 and the LCD panel 36. The As a result, the images of the TFT panel 35 and the LCD panel 36 are irradiated into the case 30 as display light L1.

  An aspherical mirror 52 is attached inside the case 30 by a mirror holder 51. The aspherical mirror 52 reflects the display light L1 emitted from the image forming assembly 31 toward the opening 30b on the upper side of the case 30. A light shielding plate 55 and a front glass 56 are fixed to the opening 30 b at the top of the case 30 with screws 57.

  Further, a control board 61 is mounted on the bottom side of the case 30, and the control board 61 is covered with a cover 63 that is fixed to the bottom of the case 30 with screws 62. Connection cables 35 a, 36 a and 41 a extending from the TFT panel 35, the LCD panel 36 and the backlight substrate 41 are connected to the control board 61.

  A display assembly 71 is assembled on the back side of the combiner 12 in the case 30 of the display device body 11.

  The display assembly 71 includes a rubber packing 72, a facing frame 73, a lens plate 74, a lamp case 75, a display substrate 76, and a display case 77, which are assembled in this order toward the combiner 12 and are connected by screws 78. It is fixed to the case 30. A connection cable 76 a extends downward from the display board 76, and this connection cable 76 a is also connected to the control board 61.

  In the display assembly 71, light emitted from a light source 79 such as an LED provided on the display substrate 76 is irradiated to the combiner 12 side through the lens plate 74. As a result, a warning display H2 is displayed on the display unit 25.

  In the head-up display device 10 having the above configuration, the display light L1 emitted from the image forming assembly 31 is reflected by the aspherical mirror 52 in the case 30 and then passes through the front glass 56 of the opening 30b of the case 30. The light is emitted to the outside of the case 30, irradiated to the display area A of the combiner 12, and guided to the driver's eye range.

  Thereby, the driver | operator can visually recognize the information display H1 which consists of a virtual image projected on the display area A of the combiner 12 from the eye point of a vehicle.

  Further, when an abnormality occurs in the vehicle, a predetermined light source 79 of the display substrate 76 in the display unit assembly 71 emits light, and the light irradiates the display unit 25 of the combiner 12 through the lens plate 74. Accordingly, the driver can grasp the warning by visually recognizing the display on the display unit 25.

  As described above, according to the head-up display device that is the above-described vehicle display device, the combiner 12 to which the display light L1 from the display device body 11 is projected is the display area A on which the display light L1 is projected. The transparent transmission part B is provided on at least one side of the. As a result, the presence of the transparent transmission part B can expand the combiner 12 while ensuring good visibility, and brings about a sense of unity with the information display H1 in the display area A to improve the design. be able to.

  Further, by combining the coupling stay 27 integrally formed with the combiner 12 to the display device main body 11, the combiner 12 can be fixed to the display device main body 11 very easily, and the assemblability can be greatly improved. .

  Moreover, the influence of external light on the display projected on the display area A is suppressed by darkening the lower side of the display area A and the transparent transmission part B of the combiner 12 in the width direction to form a colored area C. In addition, it is possible to suppress a problem that external light is reflected and irradiated into the vehicle.

(Second Embodiment)
Next, a vehicle display device according to a second embodiment will be described.

  In addition, the same structure and the same structure part as 1st Embodiment attach | subject the same code | symbol, and abbreviate | omit description.

  6 is a perspective view of a head-up display device according to the second embodiment, FIG. 7 is a front view of a combiner of the head-up display device according to the second embodiment, and FIG. 8 is a head-up according to the second embodiment. It is sectional drawing of a display apparatus.

  As illustrated in FIG. 6, in the head-up display device 10 </ b> A that is the vehicle display device according to the second embodiment, image projection units 81 are provided on both sides of the display device body 11. These image projection parts 81 irradiate light to the transparent transmission part B on both sides of the display area A in the light transmission part 21 of the combiner 12. As a result, as shown in FIG. 7, an ambient display H3 having an impressive or abstract design is projected onto the transparent transmission portion B of the combiner 12.

  As shown in FIG. 8, the image projection unit 81 has a projector case 82, and a radiator plate 83, a wiring board 84, a diffusion plate 85, a design plate 86, and a front glass 87 are included in the projector case 82. It is assembled. The diffusion plate 85 diffuses light from a light source 88 such as an LED mounted on the wiring board 84. The design plate 86 is formed of a resin having a predetermined projected color and having light transmissivity, and is provided with a pattern or the like by printing.

  In the image projection unit 81, the light from the light source 88 of the wiring board 84 is diffused by the diffusion plate 85, and then passes through the design plate 86 and the front glass 87 to be emitted as display light L3. The image projection unit 81 is installed obliquely with respect to the combiner 12, so that the display light L <b> 3 emitted from the image projection unit 81 is irradiated from the obliquely lower side to the transparent transmission part B of the combiner 12. Thereby, the ambient display H3 excellent in design different from the various information displays H1 in the display area A is displayed on the transparent transmission part B of the combiner 12, and the driver can also visually recognize the ambient display H3. It becomes possible.

  As described above, in the head-up display device 10A that is the vehicle display device according to the second embodiment, the design is further improved by projecting a display different from the display in the display area A onto the transparent transmission part B. It is possible to improve the display function.

  In the above-described embodiment, the transparent transmission part B is provided on both sides of the display area A in the combiner 12. However, the transparent transmission part B may be provided on at least one side of the display area A in the combiner 12. In this case, the image projection unit 81 that displays the ambient display H3 of the second embodiment is provided on one side where the transparent transmission part B is provided.

  In the above embodiment, the display light L1 from the image forming assembly 31 is reflected once by the aspherical mirror 52 and projected onto the combiner 12. However, the display light L1 from the image forming assembly 31 is projected to the combiner 12. A configuration in which the light is directly projected may be used, or a structure in which the display light L1 from the image forming assembly 31 is reflected twice or more and projected onto the combiner 12 may be employed.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

10, 10A head-up display device (vehicle display device)
DESCRIPTION OF SYMBOLS 11 Display apparatus main body 12 Combiner 27 Coupling stay 81 Image projection part A Display area B Transparent transmission part L1, L3 Display light

Claims (4)

A display device body for emitting display light;
A combiner that is fixed to the upper portion of the display device body and that projects display light emitted from the display device body; and
A vehicle display device comprising:
The combiner includes a display area on which the display light is projected, and a transparent transmission portion provided on at least one side of the display area. The vehicle display device according to claim 1, wherein the display device body includes an image projection unit that projects display light different from the display light projected onto the display region onto the transparent transmission unit. 3. The combiner according to claim 1, wherein the combiner has an integrally formed coupling stay, and is fixed to the display device body by coupling the coupling stay to the display device body. Vehicle display device. The vehicular display device according to any one of claims 1 to 3, wherein the combiner is darkened on the lower side of the display area and the transparent transmission portion in the width direction.

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