JP2024021153A - display device - Google Patents

Abstract

An object of the present invention is to provide a display device that can suppress cost increases. SOLUTION: A light source 30 disposed on the opposite side of a display unit 21 from a decorating member 10, and a pair of first and second light sources for guiding illumination light emitted from the light source 30 to a second decoration region R2. a case member 50 having reflective parts 51 and 52; the first reflective part 51 is provided between the light source 30 and the display part 21 to guide illumination light to the second reflective part 52; The reflecting section 52 is provided to face the second decorating region R2 in order to guide the illumination light reflected by the first reflecting section 51 to the second decorating region R2. [Selection diagram] Figure 2

Description

TECHNICAL FIELD The present invention relates to a display device including a display means covered by a decorative member.

Conventionally, this type of display device, as described in Patent Document 1, has been installed in a vehicle's instrument panel, and when in use, the display provides necessary visual information, and when not in use, the display There are known devices that can make it appear as if it does not exist. More specifically, in the display device described in Patent Document 1, the front sides of two vertically arranged displays are covered with a decorative member having a woodgrain pattern, and the decorative member includes a display. A large number of micropores are formed through which light can pass. When the two displays are in use, the screens displayed on the two displays can be viewed through the fine holes in the two decorative areas provided in the decorative member, and when the two displays are not in use, the woodgrain pattern is visible. The screen can be hidden with decorative members.

Japanese Patent Application Publication No. 2001-331132

By the way, the display device described in Patent Document 1 mentioned above employs two displays corresponding to the two decoration areas mentioned above. For this reason, the cost of the device tends to increase, and there is a problem in that the cost increases.
SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, it is an object of the present invention to provide a display device that can suppress cost increases.

The present invention includes a single display section covered by a decoration member, and the decoration member includes a first decoration region that is an area corresponding to the display section and a second decoration area that is an area that does not correspond to the display section. a display device configured to include at least a decoration area, a light source disposed on a side of the display section opposite to the decoration member; and illumination light emitted from the light source is directed to the second decoration area. a case member having a pair of first and second reflecting sections for guiding the illumination light to the light source and the display, the first reflecting section being configured to guide the illumination light to the second reflecting section. and the second reflecting section faces the second decorating area in order to guide the illumination light reflected by the first reflecting area to the second decorating area. It is characterized by being provided in.

Further, in the present invention, the case member may communicate with a first illumination space formed between the first reflection section and the second reflection section and the first illumination space. The present invention is characterized by comprising a second illumination space formed between the first illumination space and the second decoration area, and a wall portion surrounding the second illumination space.

Further, the present invention includes a circuit board on which the light source is disposed, the first illumination space is provided so as to be inclined with respect to the board surface direction of the circuit board, and the second illumination space is provided in the direction of the board surface of the circuit board. It is characterized by being provided perpendicular to the direction.

Further, the present invention is characterized in that the case member is configured as a resin case in which the first reflecting section, the second reflecting section, and the wall section are integrated.

Further, the present invention is characterized in that the display section is a single display.

According to the present invention, it is possible to provide a display device that can achieve the intended purpose and suppress cost increases.

FIG. 1 is a diagram schematically showing a vehicle interior according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of a main part of the display device along a direction perpendicular to the vehicle width direction in FIG. 1; FIG. 2 is a sectional view of another essential part of the display device taken along a direction perpendicular to the vehicle width direction in FIG. 1;

Hereinafter, one embodiment of the present invention will be described using the accompanying drawings. In the following description, each part may be described with the viewer side viewing the display device M as the front side, and the opposite side of the viewer side, which is the opposite side, as the rear side.

The display device M is provided on an instrument panel D1 of a vehicle as shown in FIGS. It includes a light source 30 provided, a circuit board 40 on which the light source 30 is mounted, a case member 50 located between the decoration member 10 and the circuit board 40, and a cover 60 that covers the back side of the circuit board 40. ing. Note that in FIG. 1, D2 indicates the windshield of the vehicle.

The decorative member 10 mainly includes, for example, a protective portion 11, a decorative portion 12, a base material 13, and a reflective layer 14. The decorative member 10 here includes a protective portion 11, a decorative portion 12, a base material 13, and a reflective layer 14, which are stacked in this order from the front side.

For example, a protective layer printed with ink containing beads of high hardness and minute particle size, which is a translucent matte material, can be applied to the protective part 11, and the protective layer 11 can be applied to a protective layer printed with ink containing beads of high hardness and minute particle size, which is a transparent matte material. is formed at the forefront of the

The decorative portion 12 can be provided, for example, with a decorative layer formed by printing multiple layers of translucent colored ink, and is provided between the protective portion 11 and the base material 13 . In this case, the decorative portion 12 is composed of, for example, a brown colored layer uniformly applied to the front side of the base material 13, and a colored layer formed in an earth-colored striped pattern formed on the front side. Ru. With this configuration, it is possible to obtain the decorative portion 12 formed with a woodgrain color and pattern. Further, the decoration section 12 is configured to be able to transmit light emitted from a display section of the display means 20, which will be described later.

As the base material 13, for example, a thin panel body formed of a translucent or semi-transparent resin material can be applied.

As the reflective layer 14, for example, a translucent half mirror layer formed on the back side of the base material 13 can be applied. Note that the reflective layer 14 may be formed of a semi-transparent printed layer printed with ink containing a metal filler instead of the half mirror layer. Note that on the back side of the reflective layer 14, a light-shielding portion (not shown) formed of a light-shielding black printed layer may be provided as necessary. When the light shielding section is provided, it is not necessary to form the light shielding section in the area corresponding to the wall section of the case member 50 and the display means 20, which will be described later. In addition, in the case of this example, the decoration member 10 mainly composed of the protection part 11, the decoration part 12, the base material 13, and the reflective layer 14 has a first decoration area which is an area corresponding to the display part. R1, and a second decorative region R2 that is a region that does not correspond to the display section (that is, a region that corresponds to the wall section).

The display means 20 includes a display section 21, a liquid crystal display section 22, and an indicator display section 23. The display section 21, the liquid crystal display section 22, and the indicator display section 23 are provided along the vehicle width direction C of the vehicle. Further, in this case, a liquid crystal display section 22 and an indicator display section 23 are installed on the left and right sides of a single display section 21.

The display unit 21 is, for example, a rectangular display, and includes a liquid crystal display panel 21a that displays various vehicle information (for example, shift position information, remaining fuel information regarding remaining fuel, fuel efficiency information, etc.), and a liquid crystal display panel 21a that displays light on the liquid crystal display panel 21a. It is mainly composed of a backlight unit (not shown) for supplying light, and a metal frame member 21b that accommodates the liquid crystal display panel 21a and the backlight unit. An opening 21c is formed in the frame member 21b at a position corresponding to the display surface of the liquid crystal display panel 21a.

The liquid crystal display section 22 can be a segment type liquid crystal display panel that displays various vehicle information (for example, vehicle speed information, mileage information, etc.).

The indicator display section 23 includes a plurality of display design sections 23b provided on the indicator panel 23a, a plurality of indicator light sources 23c provided for each of these display design sections 23b, and a plurality of indicator light sources 23c provided for each display design section 23b. A partition wall portion 23d provided for the purpose of forming a lighting room is provided (see FIG. 3).

The indicator panel 23a is provided with the above-mentioned light shielding section 23e except for the display design section 23b. As the display design portion 23b, for example, a warning mark indicating that the seat belt is not fastened can be applied. The indicator light source 23c can be a chip-type light emitting diode that emits an appropriate color. For example, if the display design part 23b is a warning mark indicating that the seat belt is not fastened, the indicator light source 23c can be a chip that emits red light. type light emitting diode is adopted. Light emitted from the indicator light source 23c passes through the inside of the partition wall portion 23d and reaches the indicator panel 23a. As a result, the display design portion 23b is displayed by emitting light in a predetermined color.

As the light source 30, for example, an RGB light source capable of emitting illumination light of a predetermined color can be applied. The light source 30 is a light emitting body that is disposed on the opposite side of the display section 21 from the decoration member 10 side and supplies illumination light to the second decoration region R2 provided on the decoration member 10. Further, although detailed illustration is omitted here, a plurality of light sources 30 are provided along the second decoration region R2.

As the circuit board 40, a hard wiring board on which a predetermined wiring pattern is applied can be applied. The circuit board 40 is provided on the side of the display means 20 opposite to the side of the decoration member 10 so as to be substantially parallel to the decoration member 10 (display means 20). Then, the indicator light source 23c, the light source 30, and the control section 42 are mounted (arranged) on one side 41 of the circuit board 40 facing the display means 20 side. The control unit 42 is a microcomputer that controls the display of the display unit 21 and the liquid crystal display unit 22, and controls the light emission of the indicator light source 23c and the light source 30.

The case member 50 can be a resin case made of, for example, a white synthetic resin material, and has a pair of first and second members for guiding the illumination light emitted from the light source 30 to the second decoration region R2. The first illumination space 53 is formed between the reflection parts 51 and 52, the first reflection part 51 and the second reflection part 52, and the first illumination space 53 is connected to the first illumination space 53. A second illumination space 54 formed between the space 53 and the second decoration region R2, and a wall surrounding the second illumination space 54 located on the front side of the first and second reflection parts 51 and 52. 55. In this example, the case member 50 is configured as a resin case in which the first reflecting section 51, the second reflecting section 52, and the wall section 55 are integrated.

The first reflecting section 51 has a substantially triangular cross section and is provided between the light source 30 and the display section 21 to guide illumination light to the second reflecting section 52 . The first reflecting section 51 includes an inclined first reflecting surface 51a for guiding the illumination light emitted from the light source 30 to the second reflecting section 52. The first reflective surface 51a has a function of bending the optical path of the illumination light emitted from the light source 30 at a substantially right angle.

The second reflecting section 52 has a substantially triangular cross section and is located on the left side of the first reflecting section 51 in FIG. The second reflection section 52 is provided to face the second decoration region R2 in order to guide the illumination light reflected by the first reflection section 51 to the second decoration region R2.

That is, in this case, the second reflective section 52 is provided directly below the second decorative region R2 so as to correspond to the second decorative region R2, and the second reflective section 52 is provided directly below the second decorative region R2, and The second reflective surface 52a is provided with an inclined second reflective surface 52a for guiding the illumination light reflected by the second decorative region R2 to the second decorative region R2. The second reflective surface 52a has a function of bending the optical path of the illumination light reflected by the first reflective surface 51a again at a substantially right angle. In addition, in the case of this example, the second reflective surface 52a (second reflective section 52) is arranged opposite to the first reflective surface 51a (first reflective section 51) via the first illumination space 53. Ru.

The first illumination space 53 is a part located in the optical path of the illumination light from the first reflection part 51 to the second reflection part 52, and the circuit board 40 is in the direction in which one surface part 41 is formed. It is provided so as to be inclined with respect to the plate surface direction. The first illumination space 53 is a portion located in the optical path of the illumination light from the second reflection section 52 to the second decoration region R2, and is approximately orthogonal to the board surface direction of the circuit board 40. It is set up like this.

The wall portion 55 is a standing wall portion that surrounds the illumination light whose optical path is bent at a substantially right angle by the second reflective surface 52a (second reflective portion 52), and is a vertical wall portion that surrounds the illumination light whose optical path is bent at a substantially right angle by the second reflective surface 52a (second reflective portion 52). 2 decoration area R2. Here, focusing on the positional relationship between the display section 21 and the case member 50, the first reflection section 51 is provided so as to overlap the display section 21 when viewed from a direction substantially perpendicular to the board surface direction. , the second reflecting section 52 and the wall section 55 are provided so as not to overlap the display section 21 when viewed from a direction substantially perpendicular to the direction of the plate surface. In addition, in the case of this example, the above-mentioned second illumination space 54 for guiding the illumination light reflected by the second reflective surface 52a to the second decoration region R2 is formed inside the wall portion 55. become.

The cover 60 is made of, for example, a synthetic resin material and has a substantially flat plate shape.

The display device M is constituted by each of the above parts. In such a configuration, the liquid crystal display panel 21a and the liquid crystal display section 22 perform a display operation based on a display control signal from the control section 42, and the indicator light source 23c and the light source 30 perform a display operation based on a display control signal from the control section 42. A lighting operation is performed based on the control signal.

The following description will focus only on the display on the liquid crystal display panel 21a and the lighting of the light source 30. When various vehicle information is displayed on the liquid crystal display panel 21a based on the input of the display control signal, each part constituting the decoration member 10 (that is, the protection part 11, the decoration part 12, the base material 13, the reflective layer 14) have translucency, so that the viewer viewing the display device M cannot see various vehicle information displayed in the first decoration region R1 of the decoration member 10. Can be visually recognized.

On the other hand, when the light source 30 is turned on based on the input of the lighting control signal, the illumination light from the light source 30 passes through the first reflection section 51 and the second reflection section 52 to the second decoration area R2 of the decoration member 10. The light is reflected and guided. At this time, the display device M The viewer who visually recognizes the line-shaped light-emitting portion that receives the reflected and guided illumination light (indirect illumination light) and is displayed in the second decoration region R2 of the decoration member 10 can be viewed. .

As described above, according to the present embodiment, the light source 30 disposed on the opposite side of the display unit 21 from the decoration member 10 and the pair of light sources 30 for guiding illumination light emitted from the light source 30 to the second decoration region R2. The first reflecting section 51 includes a light source 30 and a display section 21 in order to guide illumination light to the second reflecting section 52. The second reflecting section 52 is provided to face the second decorating region R2 in order to guide the illumination light reflected by the first reflecting section 51 to the second decorating region R2. It is something.

Therefore, since the line-shaped light-emitting section that is visible to the viewer is displayed in the second decoration area R2 by the illumination light emitted from the light source 30, it is not necessary to install a display for each decoration area as in the conventional case. Since this becomes unnecessary, it is possible to suppress cost increases. Furthermore, since the linear light emitting section is displayed as a light emitting device using indirect light, there is an advantage that uneven brightness of the linear light emitting section can be suppressed. Furthermore, since it is possible to provide the second decorative region R2 near the first decorative region R1, the information displayed in both the decorative regions R1 and R2 has a unified appearance, and the display quality ( (marketability) can be improved.

Note that the present invention is not limited to the above-described embodiments and drawings. It is possible to make changes (including deletion of components) to the embodiments and drawings as appropriate without changing the gist of the present invention.

For example, when the remaining fuel is below a predetermined threshold and the remaining fuel information indicating that the remaining fuel is below the predetermined threshold is displayed on the liquid crystal display panel 21a (display section 21), Under the control of the control unit 42, the light source 30 may emit red light. That is, in this case, the second decoration area R2 becomes a red line-shaped light emitting part, and the remaining fuel information displayed on the display unit 21 and the notification information displayed on the second decoration area R2 are displayed in coordination with each other. becomes. Thereby, the viewer can easily recognize that the amount of remaining fuel is small by visually recognizing the red linear light emitting portion.

In addition, when the remaining fuel information displayed on the display unit 21 and the notification information displayed on the second decoration area R2 are to be linked with each other, the information displayed on the display unit 21 and the second decoration area R2 is In order to increase the attractiveness of the information displayed, the brightness of the information displayed on the liquid crystal display section 22 and the light emission brightness of the indicator light source 23c (that is, the brightness of the information displayed in the second decoration region R2) are adjusted to some extent. It may be lowered. Furthermore, a configuration may be adopted in which at least one of the liquid crystal display section 22 and the indicator display section 23 is abolished. It goes without saying that when the liquid crystal display section 22 and the indicator display section 23 are abolished, the display means 20 is comprised only of the display section 21 which is a single display.

10 Decorating member 20 Display means 21 Display section 21a Liquid crystal display panel 22 Liquid crystal display section 23 Indicator display section 30 Light source 40 Circuit board 50 Case member 51 First reflective section 51a First reflective surface 52 Second reflective section 52a 2 reflective surface 53 first illumination space 54 second illumination space 55 wall D1 instrument panel R1 first decoration area R2 second decoration area

Claims (5)

comprising a display section covered by a decorative member,
A display device in which the decoration member is configured to include at least a first decoration area that is an area corresponding to the display section and a second decoration area that is an area that does not correspond to the display section,
a light source disposed on a side of the display section opposite to the decoration member;
a case member having a pair of first and second reflecting parts for guiding illumination light emitted from the light source to the second decoration area;
The first reflecting section is provided between the light source and the display section in order to guide the illumination light to the second reflecting section,
The second reflecting section is provided so as to face the second decorating region in order to guide the illumination light reflected by the first reflecting section to the second decorating region. Display device. The case member includes a first illumination space formed between the first reflection section and the second reflection section, and a first illumination space that communicates with the first illumination space. The display device according to claim 1, further comprising: a second illumination space formed between the second decoration area and a wall portion surrounding the second illumination space. comprising a circuit board on which the light source is arranged;
The first illumination space is provided so as to be inclined with respect to the board surface direction of the circuit board,
3. The display device according to claim 2, wherein the second illumination space is provided perpendicularly to the direction of the plate surface. 3. The display device according to claim 2, wherein the case member is configured as a resin case in which the first reflecting section, the second reflecting section, and the wall section are integrated. The display device according to claim 1, wherein the display section is a single display.

Images