Vehicle display device

The vehicle display device enhances design aesthetics by using a light-activated inner member with thick and thin plate portions to create floating characters and pressure-sensitive detection, addressing alignment and visibility issues in conventional switches.

JP7875437B2Active Publication Date: 2026-06-18TOYOTA BOSHOKU KK

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
TOYOTA BOSHOKU KK
Filing Date
2022-06-30
Publication Date
2026-06-18

AI Technical Summary

Technical Problem

Conventional vehicle interior switches disrupt the design aesthetics due to visible unevenness and constant display of characters, and aligning printed skins over switches is challenging.

Method used

A vehicle display device with a base material, an inner member, and a light irradiating member that uses a thick and thin plate portion to create floating characters visible only when lit, and a detection unit to sense pressure for easy alignment.

🎯Benefits of technology

Improves design aesthetics by allowing characters to appear and disappear with light, facilitates easy alignment, and ensures clear visibility and detection of pressed areas.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Patent Text Reader

Abstract

To provide a display device for a vehicle which can improve aesthetic quality.SOLUTION: A display device 100 comprises: a base 40; a tabular inside member 10 that is attached to the vehicle interior side of the base 40, and a vehicle interior side surface of which is flat; a light irradiation member 30 that is disposed between the base 40 and the inside member 10 and radiates light in a direction to the inside member 10. The inside member 10 includes: a plate part 11; and a sheet part 12 that is recessed to the vehicle interior side from a side surface 10B of the inside member 10, and a thickness of which is smaller than that of the plate part 11. The sheet part 12 has a thickness tailored to enable the light radiated from the light irradiation member 30 to enter the vehicle interior side therethrough.SELECTED DRAWING: Figure 5
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Description

【Technical Field】 【0001】 The present disclosure relates to a vehicle display device. 【Background Art】 【0002】 Conventionally, as a vehicle interior material, the technology described in Patent Document 1 is known. Specifically, Patent Document 1 discloses that a vehicle interior material (door trim) includes a switch (seat adjustment start switch) that enables the operation of the slide mechanism and reclining mechanism of a seat. This switch is a self - reset type switch that can remain on only while being pressed, and outputs a valid operation signal to the seat control device while the pressing operation is being performed. 【Prior Art Documents】 【Patent Documents】 【0003】 【Patent Document 1】 Japanese Patent Application Laid - Open No. 2012 - 136146 【Summary of the Invention】 [[ID=3o]]【Problems to be Solved by the Invention】 [[ID=o3]] 【0004】 However, in the configuration disclosed in Patent Document 1, since the switch is provided on the design surface (the inner side surface of the vehicle cabin) of the vehicle interior material, unevenness occurs on the design surface, or characters, figures, symbols, etc. (hereinafter referred to as characters, etc.) for the occupant to recognize the switch are constantly displayed on the design surface of the switch. Therefore, it is desired to improve the design property. On the other hand, in order to improve the design property, for example, a configuration in which a skin printed with the above - mentioned characters, etc. is attached so as to cover the switch on the design surface of the vehicle interior material can be considered. In that case, it is necessary to attach the skin so that the portion where the characters, etc. are printed on the skin and the switch located on the outer side of the vehicle cabin do not shift, and it is difficult to align their positions. 【0005】 This disclosure is a technology completed based on the circumstances described above, and one of its objectives is to provide a vehicle display device that can improve design aesthetics. Another objective is to provide a vehicle display device that facilitates the alignment of each part. [Means for solving the problem] 【0006】 This disclosure relates to a vehicle display device comprising a base material, a plate-shaped inner member attached to the vehicle interior side of the base material and having a flat surface on the vehicle interior side, and a light irradiating member disposed between the base material and the inner member and irradiating light toward the inner member, wherein the inner member comprises a thick plate portion and a thin plate portion which is recessed from the vehicle exterior side of the inner member toward the vehicle interior side and has a plate thickness thinner than the thick plate portion, and the plate thickness of the thin plate portion is such that light irradiated from the light irradiating member is transmitted toward the vehicle interior side. 【0007】 Such a vehicle display device allows light to pass through the thin plate portion, while the thick plate portion is less permeable to light (or not permeable at all) than the thin plate portion. By forming letters or other shapes with the planar shape of the thin plate portion, when the light irradiation from the light irradiating member is turned ON, the letters or other shapes will appear to float on the vehicle interior side of the inner member. When the light irradiation from the light irradiating member is turned OFF, the letters or other shapes will disappear, and the vehicle interior side of the inner member will appear as a flat, ordinary surface. This makes it possible to provide a vehicle display device with improved design. Furthermore, since the inner member is attached to the base material, the positioning of the thin plate portion and the light irradiating member can be controlled by its attachment. 【0008】 The vehicle display device may include a detection unit disposed between the light irradiating member and the thin plate portion, the inner member being elastic, and the detection unit being configured to detect when the inner member elastically deforms toward the outside of the vehicle interior and presses against the detection unit. 【0009】 This configuration makes it possible to provide a vehicle display device in which a detection unit can detect pressure applied by an occupant to letters or other shapes formed by a thin plate against the outside of the vehicle interior. Furthermore, by attaching the inner member to the base material, the positioning of the thin plate and the detection unit can be easily performed. This also prevents the components from being installed with a misalignment between the letters or other shapes formed by the thin plate and the detection unit. 【0010】 In the above configuration, the light irradiating member comprises a light source and a light guide that guides the light generated from the light source, and the light guide may comprise a main body and an extension that extends from the main body toward the vehicle interior side of the light source. 【0011】 According to such a vehicle display device, when the portion of the light source located on the vehicle interior side of the inner member is pressed, the extended portion can prevent the pressed portion from coming into contact with the light source. 【0012】 In the above configuration, the thickness of the thin plate portion may be one-third or less of the thickness of the thick plate portion. 【0013】 Such a vehicle display device allows for a suitable difference in the degree of light transmission between the thick plate portion and the thin plate portion. This makes it possible to provide a vehicle display device in which characters and other elements formed by the thin plate portion are less likely to blur, and characters and other elements can be clearly viewed. [Effects of the Invention] 【0014】 This disclosure makes it possible to provide a vehicle display device that can improve design aesthetics. It also makes it possible to provide a vehicle display device that allows for easy alignment of each part. [Brief explanation of the drawing] 【0015】 [Figure 1] A view of the door trim according to the embodiment, seen from the inside of the vehicle. [Figure 2] A diagram showing characters and other images appearing on a display device. [Figure 3] Exploded perspective view of the display device [Figure 4] A view of the display device from inside the vehicle. [Figure 5] Cross-sectional view of the display device (cross-section of line VV in Figure 4) [Modes for carrying out the invention] 【0016】 <Embodiment> Embodiments of this disclosure will be described with reference to Figures 1 to 5. In these embodiments, a display device (vehicle display device) 100 provided on a door trim (vehicle interior material) 1 attached to the door of an automobile (vehicle) will be described. In each figure, the arrow direction FR is forward, the arrow direction RR is rearward, the arrow direction U is upward, the arrow direction D is downward, the arrow direction IN is inside the vehicle interior, and the arrow direction OUT is outside the vehicle interior. 【0017】 As shown in Figures 1 and 2, the door trim 1 comprises a trim portion 2 that forms the majority of the door trim 1 and is plate-shaped, a plate-shaped decorative portion (ornament board) 3 attached to the trim portion 2, and a display device 100 provided above the decorative portion 3. When light is irradiated from the light irradiating member 30 (see Figure 3), the display device 100 displays characters, etc. C on the flat general surface 10A, which is the interior side of the inner member 10 (see Figure 2). On the other hand, when light is not irradiated from the light irradiating member 30, the display device 100 does not display characters, etc. C, and only the general surface 10A of the inner member 10 is shown (see Figure 1). In this embodiment, characters, etc. C represent specific figures or multiple Roman numerals (I, II, III). By pressing on the characters, etc. C displayed on the display device 100, the occupant can adjust, for example, the angle of the seat in which they are sitting. 【0018】 As shown in FIG. 3, the display device 100 includes a base material 40, a plate-shaped inner member 10 attached to the vehicle interior side of the base material 40 and having a flat general surface 10A which is the vehicle interior side surface, a light irradiation member 30 disposed between the base material 40 and the inner member 10 and irradiating light toward the inner member 10, and a detection unit 20 disposed between the inner member 10 and the light irradiation member 30. The base material 40 is made of polypropylene or the like and is a resin member harder than the inner member 10, and is attached so as to be fitted into the trim portion 2 from the vehicle interior side (or from the vehicle exterior side). The base material 40 includes a housing portion 41 which has a concave shape on the vehicle exterior side following the outer shape of the light irradiation member 30, and two hole portions 42 provided on both sides in the front-rear direction of the housing portion 41. The light irradiation member 30 is attached to be fitted into the housing portion 41 from the vehicle interior side. 【0019】 As shown in FIGS. 3 to 5, the light irradiation member 30 includes a substrate 31, a plurality of light sources (LEDs) 32 attached to the vehicle interior side at the upper end portion of the substrate 31, and a plate-shaped light guide 33 that guides the light generated from the light sources 32 in a planar shape and emits it to the vehicle interior side. The light guide 33 includes a rectangular plate-shaped main body portion 34 arranged in a plurality in the front-rear direction, an extension portion 35 extending upward (toward the vehicle interior side of the light sources 32) from the main body portion 34, a plurality of slits 36 provided in pairs between adjacent main body portions 34 and extending downward from the upper end of the light guide 33, and a plurality of intermediate portions 37 provided between the two slits 36 and having a long plate shape in the vertical direction. The slit 36 is a cut that partitions the light guided from the light source 32 to the main body portion 34 directly below it so that it does not spread in the front-rear direction (to other main body portions 34). The light source 32 is such that three light sources 32R, 32G, 32B constituting the three primary colors of light are arranged side by side in the front-rear direction for one main body portion 34. These three light sources 32R, 32G, 32B consist of a first light source 32R that emits red light, a second light source 32G that emits green light, and a third light source 32B that emits blue light. The light irradiation member 30 can emit light of an arbitrary color from the light guide 33 to the vehicle interior side by adjusting the current flowing through the three light sources 32R, 32G, 32B, respectively. 【0020】 The detection unit 20 is disposed between the main body portion 34 of the light guide 33 and the thin plate portion 12 of the inner member 10, and detects that the inner member 10 elastically deformes outward of the vehicle cabin and presses the detection unit 20. The detection unit 20 is not particularly limited, but for example, a film-like pressure-sensitive sensor having light transmissivity can be adopted. In the present embodiment, as shown in FIG. 5, the detection unit 20 abuts on the outer side surface 10B of the vehicle cabin of the inner member 10, but it is not limited thereto, and a gap may be provided between the detection unit 20 and the outer side surface 10B of the vehicle cabin of the inner member 10. 【0021】 The inner member 10 is made of an elastic body (rubber-like body) having elasticity, and an elastomer can be adopted as the material thereof. Such an elastomer may be a thermoplastic resin, and specifically, an olefin-based resin such as polyethylene or polypropylene, a styrene-based resin, a urethane-based resin, or a polyester-based resin can be adopted. Among them, an olefin-based resin is preferable as the material of the inner member 10. 【0022】 As shown in FIGS. 3 and 5, the general surface 10A which is the inner side surface of the vehicle cabin of the inner member 10 has a flat shape. The flat shape includes a shape with decorations such as a texture pattern or fine irregularities, and for example, it is a planar shape that does not cause discomfort when a passenger touches it with a finger (for example, a degree that the finger is not caught). The inner member 10 includes a thick plate portion 11 having a rectangular plate shape with a long side in the front-rear direction and constituting most of the inner member 10, a thin plate portion 12 which is a portion recessed from the outer side surface 10B of the vehicle cabin of the inner member 10 toward the inner side of the vehicle cabin and has a thinner plate thickness (a shorter length in the vehicle cabin-outer direction) than the thick plate portion 11, and two mounting portions 13 protruding outward of the vehicle cabin from both front and rear end portions of the thick plate portion 11. The thick plate portion 11 is adjacent to the thin plate portion 12 and includes a contact portion 11A whose outer side surface of the vehicle cabin abuts on the detection unit 20 (see FIG. 5). The mounting portion 13 has a claw shape with a return, and is inserted into and mounted on the hole portion 42 of the base material 40. When the mounting portion 13 is mounted on the hole portion 42 (the inner member 10 is mounted on the base material 40), and the detection unit 20 and the light irradiation member 30 are sandwiched between the inner member 10 and the base material 40, the detection unit 20 and the light irradiation member 30 are positioned with respect to the inner member 10. 【0023】 As shown in Figure 3, the thin plate section 12 comprises a first thin plate section 12A in which a figure consisting of a sheet mark and the Roman letter M is formed as a planar shape, a second thin plate section 12B located in front of the first thin plate section and in which the Roman numeral I is formed as a planar shape, a third thin plate section 12C located in front of the second thin plate section and in which the Roman numeral II is formed as a planar shape, and a fourth thin plate section 12D located in front of the third thin plate section and in which the Roman numeral III is formed as a planar shape. As shown in Figure 4, one detection section 20 and one main body section 34 are superimposed on the exterior side of the first thin plate section 12A. Similarly, one detection section 20 and one main body section 34 are superimposed on the exterior side of the second thin plate section 12B, the third thin plate section 12C, and the fourth thin plate section 12D, respectively. When light is shone from the light-emitting member 30 onto the inner member 10, the light passes through the thin plate first part 12A, thin plate second part 12B, thin plate third part 12C, and thin plate fourth part 12D toward the interior of the vehicle, causing the letters C (see Figure 2) to appear on the general surface 10A of the inner member 10. 【0024】 The thickness of the thick plate portion 11 is such that it blocks the light emitted from the light irradiating member 30 (preventing it from passing into the vehicle interior). The thickness of the thin plate portion 12 is such that it allows the light emitted from the light irradiating member 30 to pass into the vehicle interior. The thickness of the thin plate portion 12 may be one-third or less, one-quarter or less, one-fifth or less, one-sixth or less, one-twentieth or more, or one-tenth or more of the thickness of the thick plate portion 11. For example, the thickness of the thick plate portion 11 may be 3 mm. For example, the thickness of the thin plate portion 12 may be 0.5 mm. When the thick plate portion 11 and the thin plate portion 12 have such thicknesses, the contrast between light and dark can be increased when light is emitted from the light irradiating member 30, and blurring of characters etc. C (see Figure 2) formed by the planar shape of the thin plate portion 12 can be suppressed. 【0025】 Next, the effects of this embodiment will be described. In this embodiment, the display device 100 comprises a base material 40, a plate-shaped inner member 10 attached to the interior side of the base material 40 and having a flat interior side surface, and a light irradiating member 30 positioned between the base material 40 and the inner member 10 and irradiating light toward the inner member 10, wherein the inner member 10 comprises a thick plate portion 11 and a thin plate portion 12 which is recessed inward from the exterior side 10B of the inner member 10 and has a plate thickness thinner than the thick plate portion 11, and the thickness of the thin plate portion 12 is such that light irradiated from the light irradiating member 30 is transmitted toward the interior side. 【0026】 With this type of display device 100, it is possible to have a configuration in which light is transmitted through the thin plate portion 12, and the thick plate portion 11 transmits less light than the thin plate portion 12 (or does not transmit light at all). By forming letters or the like C with the planar shape of the thin plate portion 12, when the light irradiation from the light irradiation member 30 is turned ON, the letters or the like C appear to float on the interior side of the inner member 10, and when the light irradiation from the light irradiation member 30 is turned OFF, the letters or the like C disappear, and the interior side of the inner member 10 becomes a flat, ordinary surface. This makes it possible to provide a display device 100 that can improve the design. In addition, since the inner member 10 is attached to the base material 40, the positioning of the thin plate portion 12 and the light irradiation member 30 can be performed by attaching it. 【0027】 The display device 100 includes a detection unit 20 positioned between the light-irradiating member 30 and the thin plate portion 12. The inner member 10 is elastic, and the detection unit 20 detects when the inner member 10 elastically deforms outward from the vehicle interior and presses against the detection unit 20. 【0028】 With this configuration, it is possible to provide a display device 100 in which the detection unit 20 can detect the pressure applied by an occupant when they press the letters or other shapes C formed by the thin plate portion 12 toward the outside of the vehicle interior. Furthermore, by attaching the inner member 10 to the base material 40, the positioning of the thin plate portion 12 and the detection unit 20 can be easily performed. This also prevents the members from being attached in a misaligned state between the letters or other shapes C formed by the thin plate portion 12 and the detection unit 20. 【0029】 The light-emitting member 30 comprises a light source 32 and a light guide 33 that guides the light generated from the light source 32. The light guide 33 comprises a main body portion 34 and an extension portion 35 that extends from the main body portion 34 toward the interior of the vehicle relative to the light source 32. 【0030】 With such a display device 100, when the portion of the inner member 10 located on the vehicle interior side of the light source 32 is pressed, the extension portion 35 can prevent the pressed portion from coming into contact with the light source 32. 【0031】 The thin plate portion 12 has a thickness of one-third or less of the thickness of the thick plate portion 11. 【0032】 Such a display device 100 allows for a suitable difference in the degree of light transmission between the thick plate portion 11 and the thin plate portion 12. As a result, the characters C formed by the thin plate portion 12 are less likely to blur, making it possible to provide a display device 100 in which the characters C can be clearly viewed. 【0033】 <Other Embodiments> This disclosure is not limited to the embodiments described above and in the drawings. For example, the following embodiments are also included in the technical scope of this disclosure, and various modifications can be made without departing from the spirit of the disclosure. 【0034】 (1) The interior material of a vehicle on which a vehicle display device is installed is not particularly limited. For example, a vehicle display device may be attached to other interior material of a vehicle, such as an instrument panel or roof trim. Also, the letters, etc. formed by the planar shape of the thin plate portion are not particularly limited. For example, if a vehicle display device is installed on an instrument panel, the letters, etc. formed by the planar shape of the thin plate portion of the vehicle display device may indicate the operation of the air conditioning (for example, the words ON or OFF). 【0035】 (2) In the above embodiment, the base material is a separate component from the trim and decorative parts, but is not limited to this. For example, the base material may be other components that constitute the interior material for vehicles, such as the trim and decorative parts. 【0036】 (3) The configuration in which the inner member and the light-irradiating member are attached to the substrate is not particularly limited. In addition to the embodiments described above, for example, the inner member may be attached to the substrate by fitting the outer edge of the inner member into a recessed housing (or open opening) of the substrate. The light-irradiating member may also have, for example, a claw-shaped portion, and the claw portion may be inserted into the substrate (or inner member) to attach it. 【0037】 (4) The vehicle display device illustrated in the above embodiment is not limited to vehicles, but may be provided for various types of vehicles. For example, the vehicle display device can be applied to vehicles such as trains and amusement vehicles as land vehicles, airplanes and helicopters as flying vehicles, and ships and submarines as vehicles for use on the sea or underwater. [Explanation of symbols] 【0038】 1...Door trim (interior material for vehicles), 10...Inner component, 10B...Exterior side of vehicle interior, 11...Thick plate section, 12...Thin plate section, 20...Detection section, 30...Light irradiation component, 32...Light source (LED), 33...Light guide, 34...Main body section, 35...Extension section, 40...Base material, 100...Display device (display device for vehicles), C...Characters, etc.

Claims

[Claim 1] Substrate and A plate-shaped inner member is attached to the vehicle interior side of the base material, and the side surface inside the vehicle is flat. The system comprises a light irradiating member disposed between the substrate and the inner member, which irradiates light toward the inner member, The inner member is, Thick plate section, The inner member comprises a portion recessed from the outer surface of the vehicle interior towards the interior of the vehicle interior, and having a thinner plate portion than the thick plate portion, The thickness of the thin plate portion is such that it transmits light emitted from the light irradiating member to the interior of the vehicle. The light irradiation member and the thin plate portion are provided with a detection unit disposed between them, The inner member has elasticity, The detection unit detects when the inner member elastically deforms toward the outside of the vehicle interior and presses against the detection unit. The light irradiation member is Light source and The system comprises a light guide that guides light generated from the light source, The light guide body is The main body and A vehicle display device comprising: an extension portion extending from the main body portion toward the vehicle interior side of the light source portion, wherein the extension portion of the inner member is disposed on the vehicle interior side of the thick plate portion. [Claim 2] The vehicle display device according to claim 1, wherein the thickness of the thin plate portion is one-third or less of the thickness of the thick plate portion.