JP4261378B2 - Light emitting display device for vehicle - Google Patents

Description

  The present invention relates to a light-emitting display device for a vehicle using an emblem attached to a vehicle such as an automobile.

  An emblem that displays the manufacturer's name, vehicle type, model, etc. with marks such as letters, figures, symbols, etc., on the exterior (radiator grill, tail end panel, bonnet, etc.) or inside (instrument panel, etc.) (Also referred to as an ornament). And in order to be able to visually recognize these emblems not only at daytime but also at night, a device for incorporating a light source (light emitting body) such as a light emitting diode (LED), electroluminescence (EL), or a lamp into such an emblem. Has been made. For example, a technique for improving the visibility of the mark portion at night by irradiating the mark portion of the emblem directly or indirectly through an optical fiber with light from a light source attached to the vehicle side is disclosed ( (See Patent Documents 1 and 2). Among these, when using LED with high luminous efficiency like patent document 1, since a drive voltage can be made low, there exists an advantage which can be made into a cheap structure. Further, when an optical fiber is interposed as in Patent Document 2, there is an advantage that the number of light sources can be reduced because attenuation during propagation is small and uniform illumination is possible.

Japanese Utility Model Publication No. 5-1597 JP-A-8-2342

  However, when illuminating the mark portion of the emblem as described above, if the transmitted light is felt dazzling or dark, there is a risk that the maker image or the like may be lowered. For this reason, there is a case where these techniques cannot be applied as they are unless a technique for adjusting the amount of light transmitted through the mark portion in accordance with changes in the surrounding environment is added. In addition, since the light source, the optical fiber, and the like are incorporated, the emblem itself may be increased in size and weight, or the emblem may be attached to the vehicle in a complicated manner. For this reason, there are cases where these techniques cannot be applied as they are in a place where vibration during traveling is relatively large.

  An object of the present invention is to illuminate an emblem from the peripheral side to display an unprecedented novel image, and to form a thin and lightweight display portion including the emblem so that it can be simply mounted on the vehicle side. Is to provide.

Means for Solving the Problems and Effects of the Invention

In order to solve the above problems, a light-emitting display device for a vehicle according to the present invention includes:
A plate-like or film-shaped light guide part with one end face attached to the vehicle side is the back side, and a plate-like or film-like emblem located on the other end face side of the light guide part is the front side, and the thickness direction With a display unit superimposed on
The light guide part is provided in a light guide body part having translucency, a reflection layer formed on a vehicle-side mounting surface, and a central part on the other end face side of the light guide body part, and receives light from a light source. And a light introduction hole for introducing light from a light source provided in a concave portion for diffusing in a direction crossing the thickness direction, and a portion of the reflective layer facing the concave portion,
The emblem has a translucent emblem body and a light shielding layer formed on the surface in the thickness direction,
On the vehicle side , light that has entered the display unit through the light introduction hole from a point-like light source disposed facing the recess is diffused to the periphery by the recess, and further, a reflection layer of the light guide unit And the light-shielding layer of the emblem is prevented from transmitting in the thickness direction , and while leaking between them, leaks through the light guide main body portion from the peripheral portion to the direction intersecting the thickness direction, The light-shielding layer on the surface in the thickness direction of the emblem is illuminated from its peripheral side.

  In this way, by illuminating the emblem from the peripheral side with the light leaked from the peripheral part of the light guide part, the emblem appears to be lightly floating in the air with a peripheral part faintly, so an unprecedented novel image It can be displayed, and the image of the manufacturer, vehicle type, model, etc. can be improved. In addition, by forming a light shielding layer in the display portion, the other portion (main portion) of the display portion can be made of synthetic resin or the like, so that the display portion can be made thin and lightweight. In addition, since the plate-shaped or film-shaped light guide portion is a base for mounting the emblem on the vehicle side, the mounting of the emblem on the vehicle side can be made simple and strong. Therefore, for example, a thin and light display portion can be firmly fixed to the vehicle side without using a special mounting structure even in a place where vibration during traveling is relatively large, such as a radiator grill. Furthermore, the use of the light guide unit enables uniform and efficient illumination with little attenuation during propagation, and can achieve power saving and long life.

  Here, the “light-shielding layer” includes a light-shielding property other than a light-shielding metal layer (metal or metallic light-shielding layer; metal thin film) formed by wet plating, vacuum deposition, sputtering, painting, printing, hot stamping, or the like. And a light shielding resin layer formed of a synthetic resin sheet, a synthetic resin film, and the like. Further, such a light shielding layer can be formed on any part of the emblem in the thickness direction, on the back surface, and in the middle, and may be provided separately (separately) from the emblem.

Next, in order to solve the above problems, a first specific aspect of the light emitting display device for a vehicle according to the present invention is as follows.
The plate-shaped light guide part with one end face attached to the vehicle side is the back side, and the plate-like emblem located on the other end face side of the light guide part is the front side, and is stacked and fixed in the thickness direction. Provided with a display unit,
The light guide part is provided in a light guide body part made of a synthetic resin having translucency, a reflective layer formed on a vehicle side mounting surface, and a central part on the other end face side of the light guide body part, A recess for diffusing the light from the light source in a direction intersecting the thickness direction, and a light introduction hole for introducing the light from the light source provided in the opposite portion of the recess in the reflective layer,
The emblem, and an emblem body portion made of a synthetic resin having translucency and a metallic light shielding layer formed at least on the surface in the thickness direction,
On the vehicle side , light that has entered the display unit through the light introduction hole from a point-like light source disposed facing the recess is diffused to the periphery by the recess, and further, a reflection layer of the light guide unit And the light-shielding layer of the emblem is prevented from transmitting in the thickness direction, and while leaking between them, leaks through the light guide main body portion from the peripheral portion to the direction intersecting the thickness direction, The light-shielding layer on the surface in the thickness direction of the emblem is illuminated from its peripheral side.

  In this way, when the display unit is configured by superimposing and fixing the emblems formed separately (separately) and the light guide unit, the light emitting display of the present invention can be used by using the ready-made emblems as they are. The device can be implemented. Therefore, the thin and light display portion can be firmly fixed to the vehicle side without using a special mounting structure even in a place where vibration during traveling is relatively large as described above. In addition, a metallic light-shielding layer is formed on the surface of the emblem in the thickness direction, for example, by wet plating, so it displays metallic luster under daylight and displays the above-mentioned novel image at night. it can. At that time, the weather resistance of the emblem body made of synthetic resin can be improved by the metallic light-shielding layer on the surface, and deterioration due to ultraviolet rays or acid rain can be prevented. Furthermore, the attenuation during propagation is further reduced by the reflection layer of the light guide and the light shielding layer of the emblem, and further power saving and longer life can be achieved. In the emblem manufacturing process, even when the plating layer is formed not only on the surface in the thickness direction of the emblem but also on the back surface, the emblem having the plating layers formed on both the front and back surfaces can be used as it is.

In order to solve the above problem, a second specific embodiment of the light emitting display device for a vehicle according to the present invention includes:
The other end face of the light guide section, with the plate-like light guide section with one end face attached to the vehicle side as the back face side and the plate-shaped emblem located on the other end face side of the light guide section as the front face side Including a display unit integrally formed by being stacked in the thickness direction through a light shielding layer for covering
The light guide part is provided in a light guide body part made of a synthetic resin having translucency, a reflective layer formed on a vehicle side mounting surface, and a central part on the other end face side of the light guide body part, A recess for diffusing the light from the light source in a direction intersecting the thickness direction, and a light introduction hole for introducing the light from the light source provided in the opposite portion of the recess in the reflective layer,
On the vehicle side , light that has entered the light guide section through the light introduction hole from a point-like light source disposed corresponding to the recess is diffused to the surroundings while being reflected by the recess, and further the light guide Transmission through the thickness direction surface side is hindered by the reflective layer of the part and the light shielding layer, and while reflecting between them, the light guide part passes from the peripheral part toward the direction intersecting the thickness direction. Leakage and illumination of the emblem from its peripheral side.

  In this way, even when the light guide unit and the emblem are integrally formed through the intermediate light shielding layer, the above-described novel image can be displayed at night in the same manner as described above, and the display unit formed thin and light can be used as a vehicle. Can be fixed to the side. Moreover, for example, if film insert molding is performed by injection molding with a light-shielding film as an intermediate light-shielding layer, the existing emblem is integrated with the light guide unit to provide a strong display unit and a vehicle-side fixing structure. Can do.

Furthermore, in order to solve the above-mentioned problem, a third specific aspect of the light-emitting display device for a vehicle according to the present invention includes:
The plate-shaped light guide part with one end face attached to the vehicle side is the back side, and the film-like emblem that is located on the other end face side of the light guide part and constitutes the light shielding layer made of metal is the front side. , Including a display unit integrally formed by overlapping in the thickness direction,
The light guide part is provided in a light guide body part made of a synthetic resin having translucency, a reflective layer formed on a vehicle side mounting surface, and a central part on the other end face side of the light guide body part, A recess for diffusing the light from the light source in a direction intersecting the thickness direction, and a light introduction hole for introducing the light from the light source provided in the opposite portion of the recess in the reflective layer,
On the vehicle side , light that has entered the light guide section through the light introduction hole from a point light source disposed corresponding to the recess is diffused to the surroundings while being reflected by the recess, and further by the emblem. Leakage from the peripheral edge of the light guide portion in a direction intersecting the thickness direction while being prevented from being transmitted to the surface side in the thickness direction and reflected by the reflective layer of the light guide portion and the emblem, and the emblem Is illuminated from its peripheral side.

  In this way, even when the light guide and the film-shaped emblem constituting the metallic light-shielding layer are integrally formed, the above-described novel image can be displayed at night as in the above, and it is thin and light. The displayed part can be fixed to the vehicle side. Moreover, for example, by superimposing a film-like emblem as a light shielding layer on the injection-molded light guide part by vapor deposition or the like, an inexpensive and strong display part and a vehicle-side fixing structure can be obtained.

By the way, in the second or third aspect,
The light guide part has a light guide body part made of synthetic resin having translucency and a reflective layer formed on the vehicle side mounting surface (back surface in the thickness direction),
Light entering the display unit from a light source having a dotted shape is prevented from being transmitted in the thickness direction by the reflective layer and the light shielding layer of the light guide unit and reflected, and passes through the light guide unit from the peripheral portion to the thickness direction. It leaks in the crossing direction and illuminates the emblem from its surroundings .

  As described above, when the reflection layer is formed in the light guide portion, the attenuation during propagation is further reduced in combination with the light shielding layer, and further power saving and longer life can be achieved.

  In these vehicle light-emitting display devices, when the display unit is viewed from the surface in the thickness direction, it is desirable that the outer periphery of the light guide unit be formed in substantially the same shape along the outer periphery of the emblem. Thereby, the light leaking from the outer peripheral edge of the light guide part can illuminate the outer peripheral edge of the emblem almost evenly and easily reach the viewing side. In that case, when the emblem and the light guide part have a notch that opens at the outer periphery and penetrates in the thickness direction, the outer periphery of the notch of the light guide part has substantially the same shape along the outer periphery of the emblem notch. It becomes. When the emblem and the light guide part each have a through hole penetrating in the thickness direction, the inner peripheral edge (through hole) of the light guide part has substantially the same shape along the inner peripheral edge of the emblem (through hole). In this case, the light leaking from the inner peripheral edge of the light guide part is reflected by the opposing inner peripheral edge, so that the through hole can be lifted and shown, and further image enhancement can be achieved.

  A chamfered portion that approaches the vehicle side toward the outside may be formed on the outer peripheral edge portion of the light guide portion. As a result, the light that has passed through the light guide portion is easily leaked not only in the direction perpendicular to the thickness direction but also in an oblique direction from the chamfered portion toward the viewing side, thereby improving the visibility of the emblem. Note that the chamfered portion may be formed in any of a slope (planar) shape and a curved surface (for example, spherical round shape). Further, when the emblem and the light guide part each have a through-hole penetrating in the thickness direction, a chamfered part may be formed on the inner peripheral edge of the light guide part so as to approach the vehicle side toward the inside. .

  A chamfered portion that moves away from the vehicle side toward the outside may be formed on the outer peripheral edge portion of the light guide portion. As a result, the light that has passed through the light guide portion is easily leaked not only in the direction perpendicular to the thickness direction but also in the oblique direction from the chamfered portion, and is reflected by the mounting surface on the vehicle side to illuminate the emblem. Therefore, the visibility of the emblem is improved. Note that the chamfered portion may be formed in any of a slope (planar) shape and a curved surface (for example, spherical round shape). Further, when the emblem and the light guide part each have a through-hole penetrating in the thickness direction, a chamfered part may be formed on the inner peripheral edge of the light guide part so as to go inward and away from the vehicle side. .

Here, “substantially the same shape along the outer periphery (inner periphery)” means one of the following (1) to (3).
(1) The outer peripheral edge (inner peripheral edge) of the light guide portion is formed to coincide with the outer peripheral edge (inner peripheral edge) of the emblem over substantially the entire periphery;
(2) The outer peripheral edge (inner peripheral edge) of the light guide section is formed in parallel over substantially the entire periphery while being spaced outward (inner side) by a substantially constant distance from the outer peripheral edge (inner peripheral edge) of the emblem;
(3) The outer peripheral edge (inner peripheral edge) of the light guide unit is formed in parallel over substantially the entire periphery while being spaced apart from the outer peripheral edge (inner peripheral edge) of the emblem by an approximately constant distance to the inside (outer side);

(Example 1)
Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing an example of a light-emitting display device for a vehicle according to the present invention. FIG. 2 (a) is a cross-sectional view taken along line AA in FIG. 1, and FIG. As shown in FIG. 2, a light-emitting display device for a vehicle (hereinafter, also simply referred to as a display device) 1 includes a display unit 5 and a point light source 6 (for example, an LED) disposed on the vehicle side. The display unit 5 includes a plate-like light guide unit 3 having one end surface attached to an attachment surface 2 on the vehicle side (for example, a radiator grill or the like outside the vehicle or an instrument panel inside the vehicle) via an adhesive layer a. A plate-like emblem 4 disposed on the back surface side (downward) and located on the other end surface side of the light guide 3 is disposed on the front surface side (upward), and they are overlapped in the thickness direction (vertical direction). These are bonded and fixed via an adhesive layer b such as a double-sided tape. The emblem 4 shown here is represented by a flat and simple shape, but actually has a three-dimensional shape in which various irregularities are formed in order to give a profound feeling and texture. Accordingly, a three-dimensional structure is often given to the light guide 3 as well. Here, “plate-like” means that the thickness is smaller than the spread of the surface (length, width, depth) (for example, the maximum thickness is 1/10 or less of the maximum length). It does not necessarily mean that the target is flat.

  As shown in FIG. 1, the display unit 5 (the light guide unit 3 and the emblem 4) has a circular shape, and has half-moon-shaped through-holes 8 and 8 penetrating in the thickness direction with the central coupling unit 7 interposed therebetween. Yes. As shown in FIG. 1, when the display unit 5 is viewed from the upper side (the thickness direction surface side; the side opposite to the mounting surface 2), the light guide unit 3 and the emblem 4 are formed in the same shape. The outer peripheral edge of the light guide 3 is formed to be located outside the outer peripheral edge of the emblem 4 by a certain distance, and the inner peripheral edge of the light guide 3 in the through holes 8 and 8 is the inner peripheral edge of the emblem 4. It is formed so as to be spaced apart by a certain distance inside. The display unit 5 can display a mark with the above shape, and can further display characters and the like on the central connecting unit 7.

  Returning to FIG. 2, the light guide 3 is formed on the light guide body 31 formed of a transparent synthetic resin (for example, acrylic resin or polycarbonate resin) and on the lower surface (vehicle-side mounting surface; thickness direction rear surface). And a reflective layer 32 formed of a non-translucent sheet. The light source 6 is disposed at the center of the light guide 3 (the center of the center connecting portion 7 of the display unit 5) facing the light introduction hole 33 formed through the reflective layer 32. As shown in FIG. 2 (a), the top surface of the light guide body 31 is apex downward to diffuse light from the light source 6 introduced through the light introduction hole 33 in a direction perpendicular to the thickness direction. A concave portion 310 having a pyramid shape or a cone shape (or a truncated pyramid shape or a truncated cone shape narrowing downward) is formed.

  2A, the outer peripheral edge portion of the light guide main body portion 31 has a peripheral surface 34 parallel to the thickness direction of the light guide portion 3 and an outer peripheral edge portion of the emblem 4 outside. A surface 35 positioned and a chamfered portion 36 positioned between both surfaces 34 and 35 are formed. The chamfered portion 36 is provided with an inclination that becomes lower (approaching the mounting surface 2) from the surface 35 toward the outside. On the inner peripheral edge of the light guide body 31, there are a peripheral surface 34 ′ parallel to the thickness direction of the light guide 3, a surface 35 ′ located inside the inner peripheral edge of the emblem 4, and both surfaces 34 ′, 35. A 'chamfered portion 36' located between is formed. The chamfered portion 36 ′ is provided with an inclination that becomes lower (approaching the mounting surface 2) as it goes inward from the surface 35 ′.

  The emblem 4 is made of an emblem body 41 formed of a light-transmitting synthetic resin (for example, acrylic resin or polycarbonate resin) and a metal (for example, aluminum) formed by wet plating on the upper surface (surface in the thickness direction). The light shielding layer 42 is provided. The light shielding layer 42 is also formed on the peripheral surface parallel to the thickness direction at the outer peripheral edge (and inner peripheral edge) of the emblem 4.

  FIG. 3 shows an assembling method of the display unit 5. In the light guide 3, a non-translucent sheet 32 serving as a reflection layer is attached to the lower surface of the injection-molded light guide main body 31 via an adhesive layer c. In the emblem 4, an aluminum plating is applied to the upper surface of an injection-molded emblem main body 41 to form a light shielding layer 42. And the light guide part 3 and the emblem 4 are adhere | attached by the contact bonding layer b (for example, double-sided tape), and are integrated as the display part 5. FIG. The display unit 5 formed in this way is attached and fixed to the attachment surface 2 via the adhesive layer a on the lower surface of the non-translucent sheet 32. The non-translucent sheet 32 can be configured as a double-sided tape having an adhesive layer c on the upper surface and an adhesive layer a on the lower surface.

  In the display device 1 shown in FIG. 2, the light of the light source 6 that has entered the display unit 5 through the light introduction hole 33 is moved in the vertical direction (thickness direction) by the reflective layer 32 of the light guide unit 3 and the light shielding layer 42 of the emblem 4. Is prevented from being transmitted and reflected. In this way, light from the light source 6 passes through the light guide main body 31 and the emblem main body 41 and leaks from the peripheral edge of the light guide main body 31 in a direction intersecting the thickness direction (for example, a direction orthogonal). The light shielding layer 42 on the upper surface (surface in the thickness direction) of the emblem 4 is illuminated from the peripheral side (see FIG. 2B). At that time, the light passing through the light guide main body 31 leaks in the oblique direction or upward from the outer peripheral edge portion with respect to the thickness direction (see FIG. 2A). As a result, the light leaking from the peripheral portion of the light guide unit 3 can easily reach the viewing side. Moreover, in the through-holes 8 and 8, the light leaked from the inner peripheral edge of the light guide part 3 is reflected by the opposing inner peripheral edge, so that the through-holes 8 and 8 can be lifted and shown. A further image can be improved.

  In this way, by illuminating the emblem 4 from the peripheral side with the light leaking from the peripheral edge of the light guide part 3, the emblem 4 appears to float slightly in the air because the peripheral part shines lightly. The image of the manufacturer, vehicle type, model, etc. displayed on the emblem 4 can be improved. Moreover, by forming the light shielding layer 42 on the surface of the emblem 4, the light guide main body 31 and the emblem main body 41 can be made of synthetic resin, and the display unit 5 is thin and lightweight. At the same time, the weather resistance (prevention of deterioration due to ultraviolet rays or acid rain) of the synthetic resin emblem body 41 is improved by the metal light shielding layer 42 on the surface. Moreover, since the plate-shaped light guide 3 serves as a base for mounting the emblem 4 to the mounting surface 2 on the vehicle side, the mounting of the emblem 4 on the vehicle side is simple and strong. Therefore, even if the display device 1 is attached to the radiator grille and the vibration during traveling increases, the fixing of the display unit 5 to the vehicle side does not become unstable. In addition, the reflection layer 32 of the light guide 3 and the light shielding layer 42 of the emblem 4 reduce attenuation during propagation and can illuminate uniformly and efficiently, resulting in power saving and long life.

  In addition, since the display part 5 is comprised by superimposing and adhering and fixing the emblem 4 and the light guide part 3 which were each formed separately, the ready-made emblem 4 can be used as it is as the display device 1. it can.

(Modification)
FIG. 4 shows a modification of FIG. 2 (Example 1). In the manufacturing process of the emblem 4, even when the plating layer 43 (light shielding layer) is formed not only on the upper surface (thickness direction surface) but also on the lower surface (back surface), the plating layers 42 and 43 are formed on both the front and back surfaces. The emblem 4 made can be used as it is. That is, the light from the light source 6 that has entered the display unit 5 through the light introduction hole 33 (see FIG. 2) is prevented from being transmitted in the thickness direction by the back-side light shielding layer 43 of the emblem 4 and the reflective layer 32 of the light guide unit 3. It is reflected and leaks from the peripheral part of the light guide main body 31 to illuminate the emblem 4 from the peripheral side. In FIG. 4, parts having the same functions as those in FIG.

(Example 2)
FIG. 5 shows another example of a light emitting display device for a vehicle according to the present invention. In the display device 100 of FIG. 5, the display unit 50 includes a plate-shaped emblem 40 and a plate-shaped light guide unit 30, the upper surface of the light guide unit 30 (surface opposite to the vehicle-side mounting surface; thickness direction surface). The light-shielding layer 52 (for example, a light-shielding film) covering the film is laminated in the thickness direction and integrally formed. Here, film insert molding is performed as such an integral molding method. Specifically, a ready-made emblem 40 is inserted and fixed in a fixed mold (not shown), a light shielding film 52 is held on the back surface in the thickness direction of the emblem 40, and a synthetic resin (for example, acrylic resin) is placed in a cavity (not shown). ). When the reflective layer 32 (for example, a non-translucent sheet) is bonded to the lower surface (vehicle-side attachment surface; thickness direction rear surface) of the light guide unit 30 after molding, the display unit 50 is completed. In the display device 100, the light that has entered the display unit 50 is reflected by the light shielding layer 52 and the reflective layer 32 of the light guide unit 300, while being prevented from transmitting in the thickness direction, and leaks from the peripheral part of the light guide main body unit 31. Then, the emblem 40 is illuminated from the peripheral side.

  As described above, when the light guide unit 30 and the emblem 40 are integrally formed through the intermediate light shielding layer 52, the film insert molding is performed by injection molding with the light shielding film serving as the intermediate light shielding layer 52 interposed therebetween. The emblem 40 can be integrated with the light guide unit 30 to form a strong display unit 50. In FIG. 5, parts having the same functions as those in FIG.

(Example 3)
FIG. 6 shows still another example of the vehicle light emitting display device according to the present invention. The display unit 500 in FIG. 6 is integrally formed by stacking a film-like emblem 400 constituting a metal light-shielding layer (for example, an aluminum vapor deposition layer) and a plate-like light guide unit 300 in the thickness direction. Yes. Here, the film-shaped emblem 400 is formed by vapor-depositing aluminum on the upper surface of the injection-molded light guide unit 300. Thereafter, when a planar light-emitting body 600 (for example, EL; light source) is bonded to the lower surface of the light guide unit 300, the display device 200 is completed. In the display device 200, light from the planar light-emitting body 600 is reflected by the emblem 400 while being prevented from transmitting in the thickness direction, leaks from the peripheral edge of the light guide unit 300, and illuminates the emblem 400 from the peripheral side. . The planar light-emitting body 600 can be configured as a double-sided tape having an adhesive layer c on the upper surface and an adhesive layer a on the lower surface.

  As described above, when the film-like emblem 400 and the light guide unit 300 constituting the metal light-shielding layer are integrally formed, the emblem is integrated with the injection-molded light guide unit 300 by vapor deposition. Thus, an inexpensive and strong display portion 500 can be obtained. In FIG. 6, parts having the same functions as those in FIG.

  FIG. 7 shows a deformed structure of the peripheral part (outer peripheral part, inner peripheral part) of the light guide main body 31, and FIGS. 7 (a), (b) and (c) are respectively shown in FIG. 2 (a) (Example 1). 4 corresponds to FIG. 4 (modification) and FIG. 5 (embodiment 2). When attention is paid to the outer peripheral edge portion of these deformation structures, the outer peripheral edge portion of the light guide main body portion 31 becomes a curved surface (for example, spherical spherical surface) as it goes outward from the surface 35 (becomes the mounting surface 2). 37 is formed. Thus, by providing the curved chamfered portion 37, the light passing through the light guide main body portion 31 is more widely distributed and leaks from the peripheral portion. The same applies to the deformation structure of the inner peripheral edge. 7, parts having the same functions as those in FIGS. 2, 4, and 5 are denoted by the same reference numerals, and description thereof is omitted.

  FIG. 8 shows another modified structure of the peripheral part (outer peripheral part, inner peripheral part) of the light guide body 31, and FIGS. 8 (a), (b), and (c) are shown in FIG. This corresponds to 1), FIG. 4 (modification), and FIG. 5 (embodiment 2). Among these, FIG. 8A shows a case where the outer peripheral edge of the light guide 3 is formed to coincide with the outer peripheral edge of the emblem 4. A chamfered portion 38 is formed on the outer peripheral edge portion of the light guide portion 3 over the entire thickness of the light guide main body portion 31 so as to be inclined away from the vehicle side toward the outside. Thereby, the light leaking from the light guide main body 31 is reflected by the mounting surface 2 on the vehicle side and illuminates the emblem 4, so that the visibility of the emblem 4 is improved.

  FIG. 8B shows a case where the outer peripheral edge of the light guide unit 3 is spaced outward from the outer peripheral edge of the emblem 4 by a certain distance. A chamfered portion 38 is formed on the outer peripheral edge of the light guide 3 so as to be inclined away from the vehicle as it goes outward. Specifically, the outer peripheral edge of the light guide main body 31 is provided with a surface 35 positioned outside the outer peripheral edge of the emblem 4, a peripheral surface 39 parallel to the thickness direction of the light guide 3, and the chamfering. The part 38 is formed continuously. Also in this embodiment, the light leaking from the light guide main body 31 is reflected by the mounting surface 2 on the vehicle side.

  In FIG. 8C, a chamfered portion 38 is formed as in FIG. 8B. However, in this embodiment, a chamfered portion 48 is formed on the outer peripheral edge portion of the emblem 40 so as to approach the vehicle side as it goes outward. The inner edge of the chamfered portion 38 of the light guide main body 31 reaches the inner side of the outer peripheral edge of the emblem 40.

  Note that a curved chamfered portion as shown in FIG. 7 may be used instead of the flat chamfered portion 38 shown in each drawing of FIG. The same applies to the deformation structure of the inner peripheral edge. Further, in FIG. 8, parts having the same functions as those in FIG. 2, FIG. 4, and FIG.

  In the third embodiment (FIG. 6), the outer peripheral edge (and inner peripheral edge) of the light guide unit 300 is matched with the outer peripheral edge (inner peripheral edge) of the emblem 400. In the first embodiment, the modified example, and the second embodiment described above, the periphery of the light guides 3 and 30 may be made to coincide with the periphery of the emblems 4 and 40 in the same manner.

  Moreover, although the example which provided the point light source 6 was shown, as shown with the broken line in FIG.2 (b), for example, the outer periphery which connects the both ends of the circumference part of the light guide part 3 (center connection part 7), for example A plurality of (for example, two on the left and right) light sources 61 and 62 may be provided.

The front view which shows an example of the light emission display apparatus for vehicles of this invention. The AA sectional view and BB sectional view of FIG. Sectional drawing showing the assembly method of the display part of FIG. Sectional drawing showing the modification of FIG. Sectional drawing showing the other example of the light emission display apparatus for vehicles of this invention. Sectional drawing showing the further another example of the light emission display apparatus for vehicles of this invention. Sectional drawing which shows the deformation | transformation structure of the peripheral part of a light guide main-body part. Sectional drawing which shows the other deformation | transformation structure of the peripheral part of a light guide main-body part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,100,200 Light-emitting display apparatus for vehicles 3,30,300 Light guide part 4,40,400 Emblem 5,50,500 Display part 6 Light source 8 Through-hole 31 Light guide main-body part 32 Reflective layer 41 Emblem main-body part 42, 52 Shading layer

Claims (7)

A plate-like or film-shaped light guide part with one end face attached to the vehicle side is the back side, and a plate-like or film-like emblem located on the other end face side of the light guide part is the front side, and the thickness direction With a display unit superimposed on
The light guide part is provided in a light guide body part having translucency, a reflection layer formed on a vehicle-side mounting surface, and a central part on the other end face side of the light guide body part, and receives light from a light source. And a light introduction hole for introducing light from a light source provided in a concave portion for diffusing in a direction crossing the thickness direction, and a portion of the reflective layer facing the concave portion,
The emblem has a translucent emblem body and a light shielding layer formed on the surface in the thickness direction,
On the vehicle side , light that has entered the display unit through the light introduction hole from a point-like light source disposed facing the recess is diffused to the periphery by the recess, and further, a reflection layer of the light guide unit And the light-shielding layer of the emblem is prevented from transmitting in the thickness direction , and while leaking between them, leaks through the light guide main body portion from the peripheral portion to the direction intersecting the thickness direction, A light-emitting display device for a vehicle, wherein a light-shielding layer on the surface in the thickness direction of the emblem is illuminated from its peripheral side. The plate-shaped light guide part with one end face attached to the vehicle side is the back side, and the plate-like emblem located on the other end face side of the light guide part is the front side, and is stacked and fixed in the thickness direction. Provided with a display unit,
The light guide part is provided in a light guide body part made of a synthetic resin having translucency, a reflective layer formed on a vehicle side mounting surface, and a central part on the other end face side of the light guide body part, A recess for diffusing the light from the light source in a direction intersecting the thickness direction, and a light introduction hole for introducing the light from the light source provided in the opposite portion of the recess in the reflective layer,
The emblem, and an emblem body portion made of a synthetic resin having translucency and a metallic light shielding layer formed at least on the surface in the thickness direction,
On the vehicle side , light that has entered the display unit through the light introduction hole from a point-like light source disposed facing the recess is diffused to the periphery by the recess, and further, a reflection layer of the light guide unit And the light-shielding layer of the emblem is prevented from transmitting in the thickness direction, and while leaking between them, leaks through the light guide main body portion from the peripheral portion to the direction intersecting the thickness direction, A light-emitting display device for a vehicle, wherein a light-shielding layer on the surface in the thickness direction of the emblem is illuminated from its peripheral side. The other end face of the light guide section, with the plate-like light guide section with one end face attached to the vehicle side as the back face side and the plate-shaped emblem located on the other end face side of the light guide section as the front face side Including a display unit integrally formed by being stacked in the thickness direction through a light shielding layer for covering
The light guide part is provided in a light guide body part made of a synthetic resin having translucency, a reflective layer formed on a vehicle side mounting surface, and a central part on the other end face side of the light guide body part, A recess for diffusing the light from the light source in a direction intersecting the thickness direction, and a light introduction hole for introducing the light from the light source provided in the opposite portion of the recess in the reflective layer,
On the vehicle side , light that has entered the light guide section through the light introduction hole from a point-like light source disposed corresponding to the recess is diffused to the surroundings while being reflected by the recess, and further the light guide Transmission through the thickness direction surface side is hindered by the reflective layer of the part and the light shielding layer, and while reflecting between them, the light guide part passes from the peripheral part toward the direction intersecting the thickness direction. Leakage and illumination of the emblem from the peripheral side of the vehicle. The plate-shaped light guide part with one end face attached to the vehicle side is the back side, and the film-like emblem that is located on the other end face side of the light guide part and constitutes the light shielding layer made of metal is the front side. , Including a display unit integrally formed by overlapping in the thickness direction,
The light guide part is provided in a light guide body part made of a synthetic resin having translucency, a reflective layer formed on a vehicle side mounting surface, and a central part on the other end face side of the light guide body part, A recess for diffusing the light from the light source in a direction intersecting the thickness direction, and a light introduction hole for introducing the light from the light source provided in the opposite portion of the recess in the reflective layer,
On the vehicle side , light that has entered the light guide section through the light introduction hole from a point light source disposed corresponding to the recess is diffused to the surroundings while being reflected by the recess, and further by the emblem. Leakage from the peripheral edge of the light guide portion in a direction intersecting the thickness direction while being prevented from being transmitted to the surface side in the thickness direction and reflected by the reflective layer of the light guide portion and the emblem, and the emblem A light-emitting display device for a vehicle characterized by illuminating from the peripheral side. 5. The outer peripheral edge of the light guide part is formed in substantially the same shape along the outer peripheral edge of the emblem when the display part is viewed from the thickness direction surface side. Light emitting display device for vehicle. The light-emitting display device for a vehicle according to claim 5, wherein a chamfered portion is formed on an outer peripheral edge portion of the light guide portion so as to approach the vehicle side toward the outside. The light-emitting display device for a vehicle according to claim 5, wherein a chamfered portion is formed at an outer peripheral edge portion of the light guide portion so as to move away from the vehicle side toward the outside.

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