Vehicle display device

Abstract

To provide a display device for a vehicle that can prevent visibility and merchantability from being deteriorated due to positional deviation of a decorative member and a display panel.SOLUTION: A display device for a vehicle includes: a display panel 1 having a display unit (an indicator unit 12) that displays vehicle information; and a decorated member 3 positioned on the display panel 1 and provided outside the display unit. The decorative member 3 is provided with a plurality of positioning projections 33 projected from an opposite surface of the display panel 1. Long holes 15 are provided in the display panel 1 so as to correspond to the positioning projection 33. The positioning projections 33 inserted into the respective long holes 15 are positioned in the long holes 15 by leaving a gap G1 on a center side of the decorative member 3.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a vehicle display device that displays vehicle information, and is suitable for, for example, a vehicle instrument mounted on an instrument panel. [Background technology]

[0002] Conventionally, a vehicle display device in which a decorative member such as an inside cover or a ring is disposed on the front side of a display panel, and in particular the display panel and the decorative member are positioned, is known, for example, as described in Patent Document 1. The instrument device described in Patent Document 1 has a cylindrical body that protrudes in the front-to-rear direction to position the light guide, a positioning hole corresponding to the cylindrical body formed in the dial (display panel), a first positioning pin that protrudes in the instrument case and corresponds to the cylindrical body, and a second positioning pin that protrudes in the back surface of the inside cover (decorative member). The positioning hole in the dial is then inserted into the cylindrical body, and the instrument case and the light guide are assembled together, so that the first positioning pin is inserted into the cylindrical body, and the inside cover and the light guide are assembled together, so that the second positioning pin is inserted into the cylindrical body.

[0003] With this configuration, the instrument case, dial, and faceplate are positioned via the light guide. As a result, even if the boundary (window) of the faceplate overlaps the display portion of the dial, as shown in Figure 2 of Patent Document 1, misalignment between the faceplate and the dial is suppressed, making the position of the display portion relative to the boundary almost uniform and preventing a decrease in visibility of the display portion. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 10-73460 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the instrument device of Patent Document 1, the dial (display plate) and the inside cover (decorative member) are positioned on the light guide. Specifically, the dial is positioned on the outer wall of a cylindrical body attached to the light guide, and the inside cover is positioned on the inner wall of the cylindrical body by a second positioning pin. In this case, if misalignment occurs between the outer wall of the cylindrical body and the positioning hole of the dial, and between the inner wall of the cylindrical body and the second positioning pin, and if these two misalignments occur in opposite directions, the amount of misalignment between the inside cover and the dial at that point will be maximized. As a result, the position of the display unit relative to the boundary will be uneven, potentially reducing visibility and marketability.

[0006] SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a vehicle display device that can prevent a decrease in visibility and merchantability due to misalignment of a decorative member or a display panel, by focusing on the above-mentioned problem. [Means for solving the problem]

[0007] The vehicle display device of the present invention comprises: a display panel having a display unit for displaying vehicle information; a decorative member positioned on the display plate and provided on the outside of the display portion, The decorative member is provided with a plurality of positioning protrusions that protrude from the surface facing the display plate, the display plate is provided with elongated holes corresponding to the positioning protrusions, The positioning protrusions inserted into the respective elongated holes All of The decorative member is positioned in the elongated hole with a gap provided on the center side of the decorative member. 、 a measuring value is indicated and displayed by an indicator portion printed on the display plate along the decorative member and a pointer rotating on the display plate; the decorative member is provided concentrically around the rotation axis of the pointer, When the display plate expands or the decorative member contracts, the display plate and the decorative member deform around the rotation axis. do.

[0008] In addition, a design is printed on the display plate along the boundary with the decorative member.

[0010] The positioning protrusions are provided in three or four pieces at intervals of 90 degrees around the rotation axis.

[0011] a display panel having a display unit that displays vehicle information; a decorative member positioned on the display plate and provided on the outside of the display portion, The decorative member is provided with a plurality of positioning protrusions that protrude from the surface facing the display plate, the display plate is provided with elongated holes corresponding to the positioning protrusions, The positioning protrusions inserted into the respective elongated holes All of The decorative member is positioned in the elongated hole with a gap provided from the center of the decorative member to the outside. 、 a measuring value is indicated and displayed by an indicator portion printed on the display plate along the decorative member and a pointer rotating on the display plate; the decorative member is provided concentrically around the rotation axis of the pointer, When the display panel contracts or the decorative member expands, the display panel and the decorative member deform around the rotation axis. do. [Effects of the Invention]

[0012] According to the present invention, a vehicle display device can be provided that can prevent a decrease in visibility and merchantability due to misalignment of a decorative member or a display panel. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a diagram showing a state in which a vehicle display device according to an embodiment of the present invention is mounted on a vehicle; [Figure 2] FIG. 2 is a front view of a main part of the vehicle display device according to the embodiment; [Figure 3] Cross-sectional view of III-III in Figure 2. [Figure 4] FIG. [Figure 5] FIG. 3 is a perspective view showing the surface of the decorative member facing the display plate in the embodiment; [Figure 6] FIG. 6 is a cross-sectional view of the main part taken along line VI-VI in FIG. 2 . [Figure 7] FIG. 10 is a front view of a main part of a vehicle display device according to another example. [Figure 8]FIG. 10 is a front view of a main part of a vehicle display device according to another example. DETAILED DESCRIPTION OF THE INVENTION

[0014] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings, taking as an example an application to a vehicle display device mounted on an automobile.

[0015] FIG. 1 shows a vehicle display device A mounted on an automobile (vehicle) B. The vehicle display device A is installed facing the driver's seat so that the user (vehicle occupant) can view the display while driving. In this case, the vehicle display device A is installed on an instrument panel C facing the driver's seat of the vehicle, and the user seated in the driver's seat can view the display output by the vehicle display device A through the steering wheel D. The vehicle display device A can also display and output vehicle information, route guidance, audio-related information, and the like. The vehicle occupant can also operate the display (screen switching) and various settings by operating a switch D1 installed on the steering wheel D in accordance with the content displayed by the vehicle display device A.

[0016] 2 and 3, the vehicle display device A is an example of a pointer-type instrument that has a display panel 1, a pointer 2, and a decorative member 3 and indicates the vehicle's traveling speed, but also includes a liquid crystal display panel, warning lights, a speaker, etc. (not shown), and is configured to output various vehicle information to the user. The vehicle display device A also houses and holds components such as the pointer-type instrument and circuit board 6 in the storage space between a transparent protective cover 4 and a case 5. The liquid crystal display panel is a display device for displaying various vehicle information such as images taken outside the vehicle and mileage, setting the air conditioner, providing route guidance, operating the sound system, etc.

[0017] 3 and 4, display board 1 has an indicator portion (display portion) 12 and a pattern (design) 13 printed on a sheet-like substrate 11 made of synthetic resin, and further has an axial hole 14 and an elongated hole 15. Display board 1 is held by a spacer (not shown) that maintains a distance from circuit board 6.

[0018] The base material 11 is made of a translucent synthetic resin material of uniform thickness, and has a black printed layer 11a on the front (display surface) side that serves as the background, and the indicator portion 12 and pattern 13 are formed by the shape of the transparent portion that is transparent without this black printed layer 11a.

[0019] The indicator portion 12 is a display portion that indicates a numerical value indicating a traveling speed value and a unit of "km / h" by being pointed to by the needle 2, and is formed by so-called cut-out printing without the black printed layer 11a as described above, and is provided so as to be capable of being transmitted and illuminated by a light source described later. The indicator portion 12 can be displayed in a desired color (for example, white) by providing a colored light-transmitting printed layer on the front or back surface of the base material 11.

[0020] The pattern 13 is a design of the display plate 1 provided inside the decorative member 3, and in this case, is provided concentrically along the boundary S with the decorative member 3 so as to surround the shaft hole 14 and the indicator portion 12, and is formed by printing using a color different from the background color (black). In this case, like the indicator portion 12, it is provided so as to be able to be transmitted and illuminated by a light source. The pattern 13 can also be formed using a multi-color printing layer, and by forming it in the shape of a scale, it can also function as a display portion that is pointed by the pointer 2 and shows vehicle information.

[0021] The shaft hole 14 is an opening through which the rotation shaft of the pointer 2 passes, and is formed in the center of the indicator portion 12, the pattern 13, and the decorative member 3. As shown in Figure 3, the pointer 2 can be illuminated through the shaft hole 14.

[0022] The long holes 15 act as positioning parts for determining the relative positions of the decorative member 3 and the display board 1, and as shown in Figure 4, are formed in the shape of a slit with its length in the direction of the center.Four of them are formed at 90 degree (vertical) intervals around this center (rotation axis part), in positions that overlap with the decorative member 3 (shown by dotted lines), i.e., in positions that are covered by the decorative member 3, and can determine the position of the decorative member 3 in the surface direction of the display board 1.

[0023] The pointer 2, together with the display board 1, indicates and displays vehicle information, and in this case, rotates to an angle according to the traveling speed to indicate the desired position of the indicator part 12, and is provided with an indicator part 21, a cap part 22, a rotating shaft 23, and a drive source 24.

[0024] The pointing unit 21 is a light-guiding member made of a light-transmitting synthetic resin material, and can be pointed from the rotating shaft 23 toward the indicator unit 12. On the rotating shaft 23 side of the pointing unit 21, there are formed a bearing part that connects to the rotating shaft 23, an entrance surface that introduces light from the light source via the shaft hole 14, and a reflective surface on the tip side of the pointing unit 21 that reflects light.

[0025] The cap portion 22 is made of a colored (in this case, the same color as the background color of the display board 1) light-blocking synthetic resin material that covers and conceals the shaft hole 14 and the rotary shaft 23 so that they cannot be seen from the outside of the vehicle display device A.

[0026] The rotation shaft 23 transmits rotation by a drive source 24 mounted on the circuit board 6 to the indicator 21, and is provided so as to extend perpendicular to the surface of the display board 1 from the drive source 24 to the center of the shaft hole 14 of the display board 1.

[0027] A motor can be used as the drive source 24, and the position of the indicator 12 indicated by the indicator 21 can be changed by rotating the indicator 21 via the rotation shaft 23 by a desired angle based on a drive signal supplied from a circuit on the circuit board 6. The user can read the measurement value (vehicle running speed) by comparing and interpreting the indicated position of the indicator 21 with the indicator 12.

[0028] The decorative member 3 is provided outside the display portion consisting of the indicator portion 12 of the display plate 1, in a concentric ring shape centered on the rotation axis 23, so as to surround the indicator portion 12. The decorative member 3 has a light-guiding portion 31 made of a translucent synthetic resin material, and a painted portion 32 such as metal plating on the front side of the light-guiding portion 31, and positioning protrusions 33 corresponding to the positions of each elongated hole 15 on the back side (the side facing the display plate 1). In this case, as shown in Figures 2 and 5, the light-guiding portion 31 is continuously formed with a scale portion 34 extending toward the rotation axis (shaft hole 14) 23, which the user can use as an indicator when comparing and interpreting measurement values.

[0029] Figure 6 is a diagram showing a cross section taken along the dashed line in Figure 4 and taken along the VI-VI line in Figure 2, passing through one of the long holes 15. The positioning protrusion 33 is inserted into the display panel 1 at a position where gaps G1 and G2 are provided on the shaft hole 14 (rotation axis 23) side (inside) and the opposite side, the outside, of the long hole 15, and is positioned by abutting against the inner wall surface of the long hole 15 in a direction perpendicular to this cross-sectional direction.

[0030] The decorative member 3 is also provided so as to partially overlap the pattern 13 provided on the display board 1 along the decorative member 3. As a result, the pattern 13 on the inside of the decorative member 3 can be visually recognized by the user as a certain width W formed inward from the boundary S with the decorative member 3.

[0031] Because the display plate 1 and the decorative member 3 are made of different materials and have different shapes, expansion or contraction due to heat or aging results in different dimensional changes, which can lead to relative misalignment between the display plate 1 and the decorative member 3. In this case, the configuration of the elongated hole 15 and the positioning protrusion 33 described above provides gaps G1 and G2 between the positioning protrusion 33 and the inner wall of the elongated hole 15, allowing expansion or contraction around the rotation axis (axial hole 14) 23. Therefore, even if the display plate 1 and / or the decorative member 3 deforms, the center position of the decorative member 3 remains at the axial hole 14, resulting in uniform misalignment between the indicator 12 and the pattern 13, which are arranged on the same concentric circle. Therefore, even if the deformation occurs, it is possible to prevent the decorative member 3 from appearing eccentric, preventing degradation of display quality. In particular, the width of the pattern 13 provided along the decorative member 3 becomes uniform, and the positional relationship between the scale part 34 of the decorative member 3 and the indicator part 12 does not appear to be eccentric, so visibility and merchantability can be maintained.

[0032] The protective cover 4 can be made of a transparent synthetic resin such as acrylic, and covers the display surface side to prevent direct contact with the pointer 2. It also has inclined (curved) surfaces on the top and bottom to prevent the user viewing the vehicle display device A from being reflected in the image, and to prevent external light from the vehicle, such as sunlight, from being reflected towards the user's eyes.

[0033] Case 5 is concave and can be made of a light-blocking synthetic resin material, and together with protective cover 4, it houses components such as display panel 1, pointer 2, decorative member 3, and circuit board 6 while protecting them from direct contact from the outside. Case 5 and protective cover 4 are fitted and held together by hooks or screws to form an internal space for housing the components. Case 5 can be made of any light-blocking material, and metal material can also be used.

[0034] Circuit board 6 is made of a plate material such as glass epoxy resin, on which a copper foil wiring pattern is formed, and is equipped with light source 51 consisting of a light emitting diode arranged facing display board 1 to illuminate index portion 12 and pattern 13 of display board 1, indicating portion 21 of pointer 2, and light guiding portion 31 of decorative member 3, drive source 24, a control circuit element (not shown) having a program calculation unit that generates a drive signal to drive source 24, and an external connector (not shown) for supplying power and measurement value information via a cable from outside vehicle display device A. Circuit board 6 is arranged parallel to and spaced apart from the surface of display board 1, and is held in case 5.

[0035] Such a vehicle display device A comprises a display board 1 having a display section (indicator section 12) that displays vehicle information, and a decorative member 3 that is positioned on the display board 1 and provided on the outside of the display section, and the decorative member 3 has a plurality of positioning protrusions 33 that protrude from the opposing surface of the display board 1, and the display board 1 has long holes 15 that are each provided to correspond to the positioning protrusions 33, and the positioning protrusions 33 inserted into each long hole 15 are positioned in the long holes 15 with a gap G1 provided on the center side of the decorative member 3.

[0036] Therefore, even if the decorative member 3 is displaced relative to the display panel 1 due to deformation, the center position of the decorative member 3 can be maintained. This allows the display balance to be maintained without disrupting the positional relationship between the center of the indicator portion 12 and the center of the decorative member 3. This prevents the impression of misalignment and prevents a decrease in visibility and merchantability.

[0037] Furthermore, even when the display board 1 is printed with a pattern (design) 13 along the boundary S with the decorative member 3, the pattern (design) changes uniformly rather than being partially misaligned, thereby preventing a decrease in visibility and merchantability without giving the impression of misalignment.

[0038] Furthermore, the measurement value is indicated and displayed by the indicator 12 printed on the display plate 1 along the decorative member 3 and the pointer 2 that rotates on the display plate, and the decorative member 3 is arranged concentrically around the rotation axis 23 of the pointer 2, so that even if the decorative member 3 shifts position relative to the display plate 1 due to deformation, the relative central position of the decorative member 3 on the display plate 1 can be maintained. Furthermore, because the central positions of the indicator 12 and the decorative member 3 are aligned with the same rotation axis 23, the structure is less susceptible to partial positional shifts.

[0039] The display panel 1 includes a display unit (indicator unit 12) that displays vehicle information, and a decorative member 3 positioned on the display panel 1 and provided outside the display unit. The decorative member 3 has a plurality of positioning protrusions 33 that protrude from the surface facing the display panel 1. The display panel 1 has elongated holes 15 that correspond to the positioning protrusions 33, and the positioning protrusions 33 inserted into the elongated holes 15 are positioned in the elongated holes 15 with a gap G2 extending outward from the center of the decorative member 3. Therefore, even if the decorative member 3 is displaced relative to the display panel 1 due to deformation, the center of the decorative member 3 can be maintained. This allows the display balance to be maintained without disrupting the positional relationship between the center of the indicator unit 12 and the center of the decorative member 3. This prevents the impression of misalignment from appearing, and prevents a decrease in visibility and merchantability.

[0040] Although the present embodiment has been described above, the present invention is not limited to the above embodiment and can be applied to various embodiments without departing from the spirit of the present invention. The present invention is suitable as a display device mounted on an instrument panel C, and may be applied to, for example, a display E provided at an upper position of the instrument panel C shown in Fig. 1, a monitor that displays an image captured outside the vehicle B, or a monitor for passengers in the rear seats, and can obtain the same effects as those of the above embodiment.

[0041] Furthermore, in the above-described embodiment, four positioning protrusions 33 of the decorative member 3 are provided at 90-degree intervals from the center of the decorative member 3, and are positioned in the corresponding elongated holes 15. However, as shown in Fig. 7, a configuration in which three elongated holes 150 and three positioning protrusions 330 are provided at 90-degree intervals from the same center may also be used. Furthermore, the decorative member does not have to be annular. For example, as shown in Fig. 7, if the appearance outside the display unit is a concentric arc shape, the same effect as in the above-described embodiment can be obtained. In other words, a structure in which three or four positioning protrusions 330 are provided at 90-degree intervals around the rotation axis 23 may be used, and the deformation direction of the decorative member 300 can be easily determined.

[0042] 8, a decorative member 301 provided on the outside of a display portion (indicator portion) such as a scale 121 can also have the same elongated holes 151 and positioning protrusions 331 as in the above-described embodiment, and in this case, when deformation occurs due to temperature or the like, the distance between the top of the decorative member 301 and the scale 121 of the display plate 101 provided along it can be made uniform, thereby preventing a decrease in display quality. Note that in FIGS. 7 and 8, the same parts as in the above-described embodiment are designated by the same reference numerals, and detailed explanations thereof will be omitted.

[0043] The present invention is also suitable as a vehicle display device mounted on a moving body such as an automobile, a motorcycle, or an agricultural machine or a construction machine. [Explanation of symbols]

[0044] 1 Display board 11 Base material 11a black printing layer 12 Indicator section (display section) 13 Pattern (design) 14 Shaft hole 15 long hole 2 Guidelines 21 Instruction section 22 Cap part 23 Rotation axis 24 Power Source 3 Decorative materials 31 Light guide section 32 Painting Department 33 Positioning protrusion 34 Scale 4 Protective cover 5 cases 6 Circuit board 51 Light source A. Vehicle display device B. Automobile (vehicle) C. Instrument panel D Steering D1 switch G1, G2 gap S boundary W width

Claims

1. a display panel having a display unit that displays vehicle information; a decorative member positioned on the display plate and provided on the outside of the display portion, The decorative member is provided with a plurality of positioning protrusions that protrude from the surface facing the display plate, the display plate is provided with elongated holes corresponding to the positioning protrusions, All of the positioning protrusions inserted into the respective elongated holes are positioned in the elongated holes with gaps provided on the center side of the decorative member, a measuring value is indicated and displayed by an indicator portion printed on the display plate along the decorative member and a pointer rotating on the display plate; the decorative member is provided concentrically around the rotation axis of the pointer, When the display panel expands or the decorative member contracts, the display panel and the decorative member deform around the rotation axis.

2. The vehicle display device according to claim 1 , wherein the display panel has a design printed along a boundary with the decorative member.

3. The display device for a vehicle according to claim 1 , wherein the positioning protrusions are three or four in number and are provided at intervals of 90 degrees around the rotation axis.

4. a display panel having a display unit that displays vehicle information; a decorative member positioned on the display plate and provided on the outside of the display portion, The decorative member is provided with a plurality of positioning protrusions that protrude from the surface facing the display plate, the display plate is provided with elongated holes corresponding to the positioning protrusions, All of the positioning protrusions inserted into the respective elongated holes are positioned in the elongated holes with gaps provided in an outward direction from the center of the decorative member, a measuring value is indicated and displayed by an indicator portion printed on the display plate along the decorative member and a pointer rotating on the display plate; the decorative member is provided concentrically around the rotation axis of the pointer, When the display panel contracts or the decorative member expands, the display panel and the decorative member deform around the rotation axis.

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