JP2020086329A - Light emitting display device for vehicle - Google Patents

Abstract

To provide a light emitting display device for a vehicle with which, when a light source device is not emitting light, it is possible to visually recognize an indication area on a translucent member in such a manner as being less affected by a color of the translucent member than before, and with which, when the light source device is emitting light, the translucent member emits light evenly.SOLUTION: A light emitting display device 1 for a vehicle comprises: a light source device 10; a white translucent member 2 arranged at a front side of the light source device 10; a colored smoke member 3 covering a prescribed area 2A at a front side of the translucent member 2; and a non-light-permeable cover member 4 arranged so as to cover a front side of the colored smoke member 3, in a portion of which a notch 4H is provided. An area exposed to the front side from the notch 4H in the colored smoke member 3 is an indicating area 3E. A block color is visible when the light source device 10 is not emitting light and a white color is visible when it is emitting light. A light diffusion layer 9 is formed at surface and reverse sides 2a, 2b of the translucent member 2 and at a reverse side 3b of the colored smoke member 3.SELECTED DRAWING: Figure 2

Description

The present invention relates to a light emitting display device for a vehicle.

2. Description of the Related Art In recent vehicles, a light source device is incorporated and a light emitting display device that emits light at night is provided. For example, an emblem or the like arranged in the center of the front of the vehicle or the like is provided as a light emitting display device (for example, Patent Document 1).

At present, some of such light emitting display devices have the following structures. That is, as shown in FIG. 7, the light emitting display device 101 includes a light source device 110, a diffusion plate 109, a translucent member 102, a metal-like plating cover 104, and a case body 105. The light source device 110 is a backlight including LEDs and the like, and is arranged in the case body 105. The diffusion plate 109 is a plate-shaped member arranged in front of the light source device 110 in order to diffuse the light of the light source device 110. The translucent member 102 is a substantially white resin member that is assembled to the case body 105 so as to be arranged in front of the diffusion plate 109. The plating cover 104 is a covering member that covers the translucent member 102 from the front side so as to prevent the light transmitted through the translucent member 102 from being emitted to the outside. A part of the translucent member 102 is exposed to a predetermined notation. An opening 104H forming the portion 103E is provided. When the light source device 110 is not emitting light, the notation 103E is visually recognized as black, so that the surface of the translucent member 102 located inside the opening 104H of the plating cover 104 has a translucent black color clear coating 103. Has been applied. When the light source device 110 emits light, in the translucent member 102, the notation portion 103E exposed in the opening 104H of the plating cover 104 and the outer peripheral portion 102B not covered by the plating cover 104 emit white light. Is visible in.

JP, 2005-215596, A

However, when a black coating (color clear coating) is applied to the surface of the substantially white translucent member 102, the translucent member 102 itself becomes slightly grayish due to the white color of the translucent member 102, resulting in a pure black color. I can't show you.

Further, when the distance between the light source device 110 and the diffuser plate 109 is short, the light is not uniformly diffused and applied to the light emitting areas (103E, 102B), and uneven light emission is likely to occur.

An object of the present invention is to provide a vehicle in which when the light source device does not emit light, the notation area can be visually recognized in a form less susceptible to the influence of the color of the translucent member than before, and when the light source device emits light, the notation area uniformly emits light. It is to provide a light-emitting display device for use.

Means for Solving the Problems and Effects of the Invention

In order to solve the above problems, the vehicular light emitting display device of the present invention is
A light source device,
A colored light-transmissive member that is disposed on the front side of the light source device and has a light-transmitting property,
A colored smoke member which is arranged so as to cover a predetermined region of the translucent member from the front side and which is made of a colored resin material having a light transmittance of 50% or less;
A cover member that is arranged so as to cover the colored smoke member from the front side, forms the notation part by exposing the colored smoke member to the front side from a notch portion provided in a part, and a cover member having no light transparency. ,
A rear surface facing the rear side of the colored smoke member, a front surface facing the front side of the translucent member, and a back surface facing the rear side of the translucent member. And a light diffusion layer is formed on any one or more of the above.

According to the present invention, the color of the colored smoke portion itself can be visually recognized without being affected by the color of the translucent member. For example, the black colored smoked member itself can be exposed through the notch in the cover region as in the prior art, instead of exposing the black painted region coated on the white translucent member. According to this, since it is not affected by the white color of the translucent member, a clearer black can be visually recognized. Further, according to the present invention, by providing the light diffusion layer on the back surface of the colored smoke member or the translucent member, the light diffusion layer can be formed at a position farther from the light source device, and therefore uneven light emission can be reduced.

The colored smoke member in the present invention is integrated with the translucent member on the outer peripheral side, and the inner peripheral side faces the predetermined region of the translucent member with a space in between, and the colored smoke member The light diffusing layer may be formed on either or both of the rear surface of the transparent member facing the front side and the surface of the translucent member facing the front side of the predetermined region. According to this structure, since two or three light diffusion layers can be formed, unevenness in light emission can be further reduced.

1 is a front view showing a vehicle light emitting display device that is a first embodiment of the present invention. Sectional drawing which showed the AA cross section of FIG. 1 simply. The B section enlarged view of FIG. Sectional drawing which showed the light emitting display device for vehicles which is a 2nd Example of this invention simply using the same cross section as the AA cross section of FIG. Sectional drawing which showed the light emitting display device for vehicles which is 3rd Example of this invention simply using the same cross section as the AA cross section of FIG. Sectional drawing which showed simply the light emitting display device for vehicles which is 4th Example of this invention using the same cross section as the AA cross section of FIG. Sectional drawing which showed the conventional light emitting display device for vehicles simply using the same cross section as the AA cross section of FIG.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, the vehicular light emitting display device 1 according to the present embodiment includes a light source device 10, a translucent member 2, a colored smoke member 3, a cover member 4, and a case body 5. Equipped with. Note that the chromatic colors in the present invention are not limited to chromatic colors, and include achromatic colors such as white, black, and gray.

The case body 5 is a member that does not have a light-transmitting property, and has a bottomed cylindrical shape with an open front surface and a closed back surface. The light source device 10 is placed and fixed on the bottom surface side of the case body 5. The case body 5 here is a resin molded body, and is molded by, for example, black ASA (Acrylate Sthrene Acrylonitrile).

As shown in FIG. 3, the light source device 10 includes a circuit board 6 and a light emitting element 7 mounted on the main surface of the circuit board 6. The light emitting element 7 here is a plurality of LEDs (light emitting diodes) widely distributed on the main surface of the circuit board 6, and a light emitting surface 10a that emits, for example, white light is formed on the main surface side of the circuit board 6. The light emitting surface 10a is arranged so as to face the front. Note that the light source device 10 may be another one, and may have, for example, a plate-shaped light guide member and a light source that emits light from the side surface or the back surface side thereof.

The translucent member 2 is a colored member having a higher light transmissivity than at least the colored smoke member 3 and including an achromatic color and a chromatic color, and is arranged in front of the light emitting surface 10 a of the light source device 10. The translucent member 2 is assembled by being engaged with the case body 5 so as to cover the front opening. Since the assembling method is a well-known method, the description is omitted. When the rear light source device 10 emits light, the translucent member 2 is visually recognized from the outside as emitting the same color as its own color. The translucent member 2 here is a resin molded body, and is molded by, for example, white and transparent acrylic, and it is visually recognized that it emits white light by the light from the light source device 10.

The colored smoke member 3 has a light-transmitting property, and is made of a colored resin material including an achromatic color or a chromatic color having a light transmittance of 50% or less, more preferably a light transmittance of 20% or more and 50% or less. It is arranged so as to cover a predetermined central region 2A (predetermined region) on the front side of the translucent member 2. Since the colored smoke member 3 here is an achromatic color, when the rear light source device 10 emits light, the light passes through the colored light-transmitting member 2 and then enters the light-transmitting member 2. It is visually recognized that they are emitting the same color (here, white). The colored smoke member 3 here is a resin molded body, and is molded, for example, as black smoked acrylic, and is integrally molded and integrated with a separately molded transparent member 2 by heat welding or the like. Further, the colored smoke member 3 is opposed to the central region 2A of the translucent member 2 with the space 8 (air layer) in between, and is integrated with the translucent member 2 on the outer peripheral side.

The cover member 4 is a member having a lower light transmittance than at least the colored smoke member 3. The cover member 4 here is a member that does not have a light transmitting property, and is arranged so as to cover the front side of the colored smoke member 3. The cover member 4 here is a metal-like member whose surface is plated with metal, and is assembled by engaging with the translucent member 2 on the outer peripheral side. Since the assembling method is a well-known method, the description thereof will be omitted.

Further, the cover member 4 is provided with a cutout portion 4H in a part thereof, and the colored smoke member 3 is exposed to the front side from the cutout portion 4H. As a result, the exposed portion forms the black notation portion 3E. Here, the notation "SAKAE" appears in black as shown in FIG. Note that the cross-sectional view of FIG. 2 is a schematic illustration of the AA cross section of FIG. 1, and is not an accurate dimension of the above cross-section.

In the present invention, “having no light transmittance” means that the light transmittance is less than 5%, and “having light transmittance” means that the light transmittance is 5% or more. To do.

In addition, the light transmissive member 2 and the colored smoke member 3 may have a light diffusion layer 9 formed on their surfaces. The light-diffusing layer 9 is formed on the surface of the translucent member 2 or the colored smoke member 3 after or after the molding, and the surface thereof is subjected to a well-known roughening treatment such as polishing or a light-diffusing material (white pigment or glass beads). And the like) can be formed by a well-known transparent resin layer addition treatment or adhesion treatment.

The light diffusion layer 9 here faces the front surface 2a (center surface) of the central region 2A of the translucent member 2 and the back surface of the back surface (rear side of the central region 2A of the translucent member 2). The light diffusing layer 9 is formed on the three surface layers of the back surface: central back surface) 2b and the back surface 3b facing the rear side of the colored smoke member 3 by a roughening treatment. More specifically, the light diffusion layer 9 includes a front surface 2a of the translucent member 2 that faces the colored smoke member 3, an inner rear surface 2b1 of the central region 2A of the translucent member 2, and a translucent member. In the elastic member 2, an outer back surface 2b2 of the outer peripheral area 2B that rises forward from the outer peripheral edge of the central area 2A and expands to the outer peripheral side, and a back surface 3b of an exposed portion (notation portion 3E) of the colored smoke member 3 from the cover member 4 (The back surface of the notation part).

In the vehicle light emitting display device 1 formed in this way, when the light source device 10 is not lit, the colored smoke member 3 is exposed inside the cutout portion 4H of the cover member 4, and the inside of the metallic cover member 4 is exposed. The black notation 3E (here, the character area "SAKAE" in FIG. 1) is formed. On the other hand, when the light source device 10 is turned on, the translucent member 2 transmits white light so that the outer peripheral region 2B emits white light and the black notation part 3E inside the cutout part 4H of the cover member 4 is provided. Transmits white light, the notation portion 3E also emits white light. The notation unit 3E in the present embodiment describes the emblem of the vehicle. In this embodiment, since the three light diffusion layers 9 are formed, the above-described light emitting region can emit light uniformly.

Further, in this embodiment, the case body 5, the circuit board 6, and the translucent member 2 are formed with a communication hole 8H for communicating the space 8 (air layer) with the outside. In the vehicular light emitting display device 1 as in this embodiment, an airtight check may be performed to confirm whether or not water has entered. For this reason, originally, in order to save the trouble of forming the communication hole 8H in the translucent member 2, it is desired to design so that the space 8 is not formed inside the vehicle light emitting display device 1. However, by forming the space 8 in order to form more light diffusion layers 9, uniform light emission of the light emitting regions (3E, 2B) is realized.

Further, in the vehicular light-emitting display device 1 of the present embodiment, the case body 5, the translucent member 2, and the colored smoke member 3 form an internal space that is sealed inside the device. The front side of the internal space is covered with a cover member 4 having no light transmittance, and the back side (further side surface rear side) is covered with a case body 5 having no light transmittance. As a result, the internal space becomes a dark space in which it is difficult for light to enter. In particular, since the cover member 4 covers the periphery of the notation portion 3E, the back of the notation portion 3E becomes a darker space. When the notation part 3E is visually recognized when the light source device 10 is in the non-light emitting state, the colored smoke member 3 forming the notation part 3E is affected by the color of the structure behind because of the dark space behind. It becomes difficult and it becomes possible to visually recognize it as black.

Although one embodiment of the present invention has been described above, this is merely an example, and the present invention is not limited to this. For example, various modifications can be made based on the knowledge of those skilled in the art, such as omitting some of the constituents in the above embodiment and adding other constituents.

Hereinafter, other embodiments and modifications of the present invention will be described. Detailed description of the functional units common to the above-described embodiments and the similar functional units will be omitted. Further, the above-described embodiment and the following modified examples can be appropriately combined and implemented within a range not causing a technical contradiction.

In the above embodiment, the black notation portion 3E forms the vehicle emblem, but it may be another design portion.

The various resin members (2, 3, 4, 5) of the above embodiment may be formed of other resin materials as long as they satisfy the conditions such as light transmittance and rigidity.

The communication hole 8H in the above embodiment may be omitted.

In the above embodiment, the light diffusion layer 9 is formed on the front surface 2a of the central area 2A of the translucent member 2, the back surface 2b on the back side of the central area 2A, and the back surface 3b of the notation portion 3E of the colored smoke member 3. Although formed, at least in the rear area E of the notation portion 3E, the back surface facing the rear side of the colored smoke member 3, the front surface facing the front side of the transparent member 2, and the rear side of the transparent member 2 are formed. It suffices if it is formed on any one of or a plurality of the back surface that faces. For example, as shown in FIG. 4, it may be formed on the back surface 3b of the colored smoke member 3 (the back surface of the notation portion) and the back surfaces 2b1 and 2b2 of the translucent member 2 (the center back surface and the outer back surface). As shown in FIG. 5, it may be formed on the front surface 2a (central surface) of the translucent member 2 and the back surfaces 2b1 and 2b2 (central back surface and outer back surface) of the translucent member 2.

2, 4 and 5, the back surface 3b of the colored smoke member 3 (back surface of the notation portion), the front surface 2a of the translucent member 2 (center surface), and its back surface 2b1 (center back surface). And are formed at least in a portion corresponding to the rear area E of the notation portion 3E. However, the light diffusion layer 9 in the present invention is not limited to those surfaces 3b, 2a, 2b1, and for example, the entire back surface of the colored smoke member 3, the entire front surface of the transparent member 2, the entire rear surface of the transparent member 2, etc. , May be formed in a wider area including the surfaces 3b, 2a, 2b1.

In the above-described embodiment, the space 8 (air layer) is provided between the translucent member 2 and the colored smoke member 3 so that the three light diffusion layers 9 can be formed, but as shown in FIG. It is also possible to eliminate the two spaces 8. In this case, the light diffusion layer 9 can be formed on the back surface 2b of the translucent member 2 (outer back surface 2b2) and the back surface 3b of the colored smoke member 3 (back surface of the notation portion).

1 Light-Emitting Display Device for Vehicle 2 Translucent Member 2A Central Region (Predetermined Region) of Translucent Member
2B Peripheral region of translucent member 3 Colored smoke member 3E Notation part 4 Cover member 4H Cutout part 5 Case body 8 Space 9 Light diffusion layer 10 Light source device

Claims (2)

A light source device,
A colored light-transmissive member, which is disposed on the front side of the light source device and has a light-transmitting property,
A colored smoke member which is arranged so as to cover a predetermined region of the translucent member from the front side and which is made of a colored resin material having a light transmittance of 50% or less;
A cover member that is arranged so as to cover the colored smoke member from the front side, forms the notation part by exposing the colored smoke member to the front side from a notch portion provided in a part, and a cover member having no light transparency. ,
A rear surface facing the rear side of the colored smoke member, a front surface facing the front side of the translucent member, and a back surface facing the rear side of the translucent member. A light emitting display device for a vehicle, wherein a light diffusion layer is formed on any one or a plurality of the above. The colored smoke member is integrated with the translucent member on the outer peripheral side, and the inner peripheral side faces the predetermined region of the translucent member across a space,
The light diffusion layer, at least in a region behind the notation portion, on either or both of a back face facing the rear side of the colored smoke member and a front face facing the front side of the predetermined region of the translucent member. The light emitting display device for a vehicle according to claim 1, which is formed.

Images