Display device

Abstract

The utility model provides a display device. A display device (100) is provided with a display unit (10), a circuit board (30), and a support body (20). The display unit (10) has a display surface (10a) exposed from a dash panel (1) of a vehicle, and displays an image on the display surface (10a). The support body (20) has a standing wall section (22) that stands upward with respect to a cover section (21) that covers the circuit board (30) from above. The support body (20) supports the display section (10) via the standing wall section (22). The vertical wall section (22) has a metal section (22m) and a resin section (22r), which are integrally molded. The cover part (21) is made of metal, and the cover part (21) and the metal part (22m) of the vertical wall part (22) are integrated. A portion of the standing wall portion (22) exposed from the dash panel (1) is formed of a resin portion (22r). According to the display device provided by the utility model, the high temperature of the part exposed from the front surrounding plate can be inhibited.

Description

Technical Field

[0001] The utility model relates to a display device. Background Art

[0002] For example, Patent Document 1 describes a display device mounted on a dashboard of a vehicle, the display device including a display unit that displays an image and a metal housing that houses the display unit.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2019-148723 Utility Model Content

[0006] Issues to be resolved

[0007] In the display device described in Patent Document 1, if the metal casing is exposed from the dash panel, the temperature will increase, and there is a possibility that a user who accidentally touches the casing will feel uncomfortable.

[0008] The present invention has been made in view of the above-mentioned situation, and an object of the present invention is to provide a display device capable of suppressing the temperature increase of a portion exposed from a dash panel.

[0009] Means for solving problems

[0010] In order to achieve the above-mentioned object, the display device involved in the utility model has:

[0011] A display unit having a display surface exposed from a front panel of the vehicle, the display unit displaying an image on the display surface;

[0012] a circuit substrate located in the dash panel; and

[0013] A support body having a cover portion located in the front panel and covering the circuit substrate from above; and a vertical wall portion rising upward relative to the cover portion, the support body supporting the display portion through the vertical wall portion,

[0014] The vertical wall portion includes a metal portion and a resin portion formed integrally.

[0015] The cover is formed of metal and is integrated with the metal part of the vertical wall.

[0016] A portion of the upright wall portion exposed from the dash panel is formed by the resin portion.

[0017] Utility Model Effect

[0018] According to the present invention, it is possible to suppress the temperature increase of the portion exposed from the dash panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a figure which shows the relationship between the display device which concerns on one embodiment of this invention, and a dash panel.

[0020] Figure 2 This is a diagram showing the display device according to this embodiment as viewed from the front.

[0021] Figure 3 It is a perspective view of a support body according to this embodiment.

[0022] Figure 4 This is a perspective view of the support body according to this embodiment as viewed from one side of the substrate housing portion.

[0023] Figure 5 The display device according to this embodiment Figure 2 The AA line is shown as a schematic cross-sectional view.

[0024] Figure 6 The display device according to this embodiment Figure 2 A schematic cross-sectional view along line BB is shown.

[0025] Figure 7 The display device according to this embodiment Figure 2 The CC line schematic cross-sectional view shown is a view showing the dashboard together with the dashboard.

[0026] Figure 8 It is a perspective view of the housing involved in this embodiment.

[0027] Fig. 9 It is a perspective view of the housing according to this embodiment as seen from the bottom, and is a view for mainly explaining the locking portion.

[0028] Fig.10 This is a perspective view of the cover, the housing, and the circuit board according to this embodiment as viewed from below.

[0029] Fig.11 It is a perspective view of the sounding body and the housing according to this embodiment.

[0030] Fig.12 The display unit and the wall unit of this embodiment are Figure 3 DD line schematic cross-sectional view shown.

[0031] Fig.13 It is an exploded perspective view of the support body involved in this embodiment.

[0032] Fig.14This is a perspective view of the support body according to this embodiment as seen from the rear side.

[0033] Fig.15 This is a perspective view of the circuit board according to this embodiment as seen from above.

[0034] Explanation of symbols

[0035] 100: display device; 1: dash panel; 1a: front portion; 1b: rear portion; 1c: protruding member; 10: display portion; 10a: display surface; 11: display; 12: cover glass; 12a: transmission area; 13: transparent adhesive layer; 20: support body; 21: cover; 210: upper wall; 210a: recess; 210b: lower surface; U1: first raised portion; U2: second raised portion; T1: first heat conductive sheet; T2: 2nd heat conducting sheet; 211: peripheral wall; 211a: side wall; 211b: notch; 212: substrate accommodating portion; 213: top cover; 213a: harness insertion port; 22: vertical wall; 22m: metal portion; 22r: resin portion; 22r1: upper portion; 22r2: lower portion; 220: main board portion; 220m: metal main board portion; 220r: resin main board portion; 221: frame edge portion; 221m: metal frame edge portion; 221r : resin frame edge; 222: convex portion; 23: connecting portion; 24: through hole; 25: double-sided tape; 26: adhesive; 27: engaging portion; 30: circuit substrate; 31: through hole; 30a: main surface; S1: first circuit element; S2: second circuit element; C3: connector; 30b: lower surface; 40: flexible component; C1: connector; 50: wiring; C2: connector; 60: conductive component; 70: sound generator; 71: sound generator Part; 80: Shell; 81: Main wall; 82: Peripheral wall; 82a: Heat dissipation gap; 83: Accommodation portion; 83a: Bottom surface; 84: Protrusion; 84a: Fitting hole; 85: Wiring protection portion; 85a, 85b: Stopping portion; G: Gap; 86: Recessed portion; 86a: Stopping portion; 87: Hook; 87a: Inclined surface; 88: Support portion; 89: Surrounding wall; H: Hole; N: Screw; V: Virtual line; 90: Lower cover (cover component). DETAILED DESCRIPTION

[0036] An embodiment of the present invention will be described with reference to the accompanying drawings.

[0037] The display device 100 is, for example, a vehicle display device. Figure 1 As shown, the information on the dashboard 1 of the vehicle is provided to inform the user of information related to the vehicle. The information includes not only information on the vehicle itself (such as information on the instrument panel), but also information on the outside of the vehicle.

[0038] like Figure 1 to Figure 15As shown, the display device 100 includes a display unit 10, a support body 20, a circuit substrate 30, a flexible member 40, a wiring 50, a conductive member 60, a sounding body 70, a housing 80, and a lower cover 90 as a cover member. Figure 5 to Figure 7 In the figure, the hatching representing the cross section is omitted for the sake of visibility of the drawing.

[0039] In appropriate figures, the front Fd, the back Bd, the top Ud, and the bottom Dd are shown as directions for explaining the display device 100. For example, the front of the display unit 10 is the direction in which the display unit 10 displays an image, and is the direction in which the user visually observes the image relative to the display unit 10.

[0040] The display unit 10 includes a display 11 that displays an image and a cover glass 12 .

[0041] The display 11 is, for example, a liquid crystal display having a liquid crystal panel, a backlight unit that illuminates the liquid crystal panel from behind, and a metal frame that houses the liquid crystal panel and the backlight unit. Alternatively, the display 11 may be an organic EL (Electro Luminescence) display or the like.

[0042] The cover glass 12 is made of organic or inorganic glass, such as Fig.12 As shown, the cover glass 12 is fixed to the front of the display 11 via a transparent adhesive layer 13. The cover glass 12 includes a transmission area 12a that transmits an image of the display 11. For example, a black or other colored layer that divides the image display area of ​​the display 11 is formed on the area other than the transmission area 12a of the cover glass 12.

[0043] In this embodiment, if Figure 2 As shown in FIG. 1 , the front of the cover glass 12 (specifically, the front of the transmission area 12a) is the display surface 10a of the display unit 10. In addition, the display surface 10a is not limited to this example, and the display surface 10a can be the frontmost part of the display unit 10 that displays an image. Figure 1 , Figure 7 As shown, the display unit 10 has a display surface 10 a exposed from the dash panel 1 , and an image is displayed on the display surface 10 a .

[0044] like Figure 7 As shown, in the dash panel 1, the front portion 1a is a portion located in front of the display unit 10, and the rear portion 1b is a portion located behind the display unit 10. The rear portion 1b is closer to the windshield of the vehicle (not shown) than the front portion 1a. In this embodiment, the display unit 10 is located between the front portion 1a and the rear portion 1b located above the front portion 1a, and the display surface 10a is exposed from the dash panel 1.

[0045] Mainly as Figure 3As shown, the support body 20 has a cover portion 21 and a standing wall portion 22. In this embodiment, the cover portion 21 and a part of the standing wall portion 22 are integrally formed of metal.

[0046] The cover 21 is located in the dash panel 1 and covers the circuit board 30 from above. Figure 3 or Figure 4 As shown in FIG. 2 , the cover 21 has an upper wall 210, an outer peripheral wall 211, and a substrate receiving portion 212. Fig.14 The top cover portion 213 is shown.

[0047] The upper wall portion 210 is a portion of the cover portion 21 that faces the circuit board 30 in the up-down direction. The upper wall portion 210 has a recessed portion 210 a that is recessed toward the circuit board 30 .

[0048] like Figure 4 As shown in FIG. 2 , the recess 210a includes a first raised portion U1 and a second raised portion U2 that are raised from a lower surface 210b of the recess 210a toward the circuit substrate 30. Figure 5 As shown, the first heat conducting sheet T1 is provided on the first raised portion U1, and the second heat conducting sheet T2 is provided on the second raised portion U2.

[0049] The outer peripheral wall 211 is provided from the outer edge of the upper wall portion 210 toward the circuit substrate 30, and surrounds the end surface of the circuit substrate 30. Figure 3 As shown, a step portion is provided below the outer peripheral wall 211. The outer peripheral wall 211 surrounds the end surface of the circuit substrate 30 via the step portion.

[0050] In this embodiment, the frontmost portion of the outer peripheral wall 211 surrounding the circuit board 30 is a side wall portion 211a. The side wall portion 211a faces the wiring protection portion 85 described later. The side wall portion 211a has a notch 211b for passing a part of the wiring 50.

[0051] The substrate housing portion 212 houses the circuit substrate 30 on the lower side of the cover portion 21. Specifically, the substrate housing portion 212 includes a portion on the lower side of the step portion of the outer peripheral wall 211.

[0052] As described later, Fig.14 The top cover 213 shown covers the connector C3 (see FIG. Fig.15 ).

[0053] The vertical wall portion 22 stands upward relative to the cover portion 21 to support the display portion 10. The display portion 10 is supported by the vertical wall portion 22 by being fixed to the front side of the vertical wall portion 22. Fig.12As shown, the vertical wall portion 22 has: a main board portion 220, which is located behind the display 11; and a frame portion 221, which protrudes from the periphery of the main board portion 220 toward the cover glass 12. The display 11 is located in the room surrounded by the main board portion 220 and the frame portion 221 in the vertical wall portion 22. For example, the outer peripheral shape of the frame portion 221 is formed in a manner that is substantially consistent with (including exactly consistent with) the outer peripheral shape of the cover glass 12. In addition, Fig.12 The display unit 10 and the wall unit 22 Figure 3 A schematic cross-sectional view taken along line DD is shown.

[0054] The main board 220 is provided with a plurality of protrusions 222 protruding toward the display 11. The protrusions 222 are formed, for example, in a disc shape and are formed flat toward the front of the display 11. Fig.12 As shown, gaps are generated between the rear surface of the display 11 (specifically, the rear surface of the frame) and the plurality of protrusions 222 .

[0055] Here, the vertical wall portion 22 has Fig.13 The metal portion 22m and the resin portion 22r are shown in exploded form in FIG. The standing wall portion 22 is formed by the metal portion 22m and the resin portion 22r which are integrally molded by insert molding.

[0056] The main plate portion 220 includes a metal main plate portion 220m as a part of the metal portion 22m and a resin main plate portion 220r as a part of the resin portion 22r. The metal main plate portion 220m of this embodiment covers the entire rear surface of the display 11 from the rear. Fig.13 , Fig.14 As shown, the resin main plate portion 220r is formed in the upper region of the rear side of the metal main plate portion 220m. The plurality of protrusions 222 are provided on the metal main plate portion 220m.

[0057] The frame edge portion 221 includes a metal frame edge portion 221m as a part of the metal portion 22m and a resin frame edge portion 221r ​​as a part of the resin portion 22r. The resin frame edge portion 221r ​​includes a pair of leg-shaped portions extending downwardly from the resin main plate portion 220r, and is formed into a substantially U-shape. On the other hand, the metal frame edge portion 221m is formed into a substantially U-shape along the lower portion of the metal plate-shaped portion 220m. The frame edge portion 221 having an enclosing shape is formed by combining the metal frame edge portion 221m with the resin frame edge portion 221r ​​above the metal frame edge portion 221m.

[0058] like Fig.12As shown in FIG. 1 , the rear surface of the cover glass 12 (specifically, the rear surface of the outer end of the cover glass 12) is bonded and fixed to the frame 221 (specifically, the front end of the frame 221). In this embodiment, the rear surface of the cover glass 12 is bonded and fixed to the frame 221 by a double-sided tape 25. For example, the double-sided tape 25 is provided over the substantially entire circumference of the cover glass 12 and the frame 221.

[0059] In addition, the rear surface of the display 11 (specifically, the rear surface of the frame) is bonded and fixed to the main board portion 220 (specifically, the metal main board portion 220m). Specifically, the rear surface of the display 11 (specifically, the rear surface of the frame) is bonded and fixed to the main board portion 220 (specifically, the metal main board portion 220m) by the adhesive 26 that fills the gap between the rear surface of the display 11 and the plurality of protrusions 222 provided on the metal main board portion 220m. In addition, the double-sided tape 25 and the adhesive 26 are respectively made of appropriate raw materials according to well-known structures.

[0060] like Figure 7 As shown, the portion of the upright wall portion 22 exposed from the dash panel 1 (specifically, the rear portion 1b) is formed by the resin portion 22r. Fig.14 The virtual line V shown in FIG. 1 shows an example of a boundary between a portion of the standing wall portion 22 located above the rear portion 1b of the dash panel 1 and a portion located below the rear portion 1b. Fig.14 As can be seen, the resin portion 22r has an upper portion 22r1 located above the dash panel 1 and a lower portion 22r2 located below the dash panel 1. The lower portion 22r2 is provided with a snap-fit ​​portion 27 that engages with a fixing member (not shown) fixed to the dash panel 1 (specifically, the rear portion 1b). In the present embodiment, a pair of snap-fit ​​portions 27 are provided, each of which is formed into an L-shaped hook. The vertical wall portion 22 is supported by the rear portion 1b of the dash panel 1 through the fixing member that engages with the snap-fit ​​portion 27. In addition, the snap-fit ​​portion 27 and the fixing member can be engaged with each other by any mechanism such as locking and fitting, and their respective shapes are also arbitrary.

[0061] The standing wall portion 22 is connected to the cover portion 21 via a connecting portion 23 provided at the rear end of the upper wall portion 210 of the cover portion 21. In this embodiment, the cover portion 21, the metal portion 22m of the standing wall portion 22, and the connecting portion 23 are integrally formed of metal.

[0062] The circuit substrate 30 is a control unit (e.g., a microcontroller) that controls the operation of the display device 100 and a PCB (Printed Circuit Board) on which other electronic components are mounted. The circuit substrate 30 is fixed to the substrate receiving portion 212 of the cover 21 by screws (not shown) or the like. In the following, of the two surfaces on which circuit elements can be mounted in the circuit substrate 30, the surface facing upward is referred to as the main surface 30a, and the surface facing downward is referred to as the lower surface 30b.

[0063] exist Figure 4 In FIG. 2 , the circuit substrate 30 accommodated in the substrate accommodating portion 212 is indicated by a dotted line. Figure 4 As can be understood, most of the outer edge of the main surface 30a of the circuit board 30 is in surface contact with the substrate housing portion 212. That is, at least a portion of the outer edge of the main surface 30a is in surface contact with the substrate housing portion 212.

[0064] like Figure 5 As shown, a heat conducting sheet (a first heat conducting sheet T1 and a second heat conducting sheet T2) is provided between the cover 21 and the circuit elements (a first circuit element S1 and a second circuit element S2) mounted on the circuit substrate 30. Specifically, as circuit elements, a first circuit element S1 and a second circuit element S2 as ICs (Integrated Circuits) having different heights are mounted on the main surface 30a. For example, the first circuit element S1 is a GDC (Graphics Display Controller) and the second circuit element S2 is a microcontroller. The first circuit element S1 abuts against the first heat conducting sheet T1 provided on the first raised portion U1. The second circuit element S2 abuts against the second heat conducting sheet T2 provided on the second raised portion U2. In the present embodiment, the first heat conducting sheet T1 and the second heat conducting sheet T2 have the same thickness.

[0065] Here, the thickness of the first heat conducting sheet T1 and the second heat conducting sheet T2 is set to t, the height of the first circuit element S1 is set to h1, the height of the second circuit element S12 is set to h2, the thickness of the first raised portion U1 (the height of the raised portion) is set to d1, and the thickness of the second raised portion U2 (the height of the raised portion) is set to d2. In this case, h1+t+d1=h2+t+d2 is established. By setting the first raised portion U1 and the second raised portion U2 in this way, the same sheet can be used for the first heat conducting sheet T1 and the second heat conducting sheet T2.

[0066] The circuit substrate 30 is electrically connected to the display unit 10 via a flexible member 40. The flexible member 40 is made of FPC (Flexible Printed Circuits) or FFC (Flexible Flat Cable), and electrically connects the display 11 of the display unit 10 to the circuit substrate 30. Figure 5 As shown, at the rear end portion of the lower surface 30b, a flexible component 40 extending from the display 11 is connected via a connector C1. Here, between the vertical wall portion 22 of the support body 20 and the cover portion 21, a through hole 24 is formed through which the flexible component 40 passes for electrically connecting the display portion 10 (specifically, the display 11) to the circuit substrate 30. The through hole 24 is provided below the display 11. In addition, in the circuit substrate 30, a through hole 31 is formed at a position facing the through hole 24. The flexible component 40, one end of which is electrically connected to the display 11, passes through the through hole 24 and the through hole 31, and the other end is electrically connected to the lower surface 30b of the circuit substrate 30 via the connector C1. In this embodiment, although not shown in the figure, there are two flexible components 40, and therefore, the through hole 24 and the through hole 31 are as shown in FIG. Figure 4 There are two groups as shown.

[0067] The circuit substrate 30 is electrically connected to the sound-emitting body 70 via the wiring 50. Figure 6 As shown, the wiring 50 extending from the sounding body 70 is connected to the front end portion of the lower surface 30 b of the circuit board 30 via the connector C2 .

[0068] In addition, if Fig.15 As shown, a connector C3 connected to a wiring harness (not shown) of a vehicle is mounted on a rear end portion of a main surface 30 a of the circuit board 30 .

[0069] like Figure 7 As shown, the circuit substrate 30 is located below the display unit 10 in the dash panel 1 and protrudes forward of the display surface 10 a.

[0070] like Figure 5 As shown, the conductive member 60 is a conductive member such as metal sandwiched between the lower surface 210b of the recess 210a and the circuit substrate 30. Specifically, the conductive member 60 is sandwiched between the lower surface 210b and a ground pattern (not shown) formed on the main surface 30a of the circuit substrate 30, and the ground pattern is electrically connected to the support body 20 formed of metal. Thus, the support body 20, especially the cover 21, functions as an electromagnetic wave shield. For example, a plurality of conductive members 60 are provided.

[0071] The conductive member 60 is, for example, a Z-shaped terminal and has elasticity in the vertical direction. The elastic force of the conductive member 60 acts on the lower surface 210b and the circuit substrate 30. Thus, the cover 21 can have a shielding function, and the cover 21 and the circuit substrate 30 can have a cushioning property.

[0072] like Figure 1 As shown, the sound-generating body 70 is located between the front panel 1 and the cover 21. The sound-generating body 70 is, for example, a speaker, and emits sound under the control of the control unit. The sound-generating body 70 has a sound-generating portion 71 as a portion for emitting sound, and the sound-generating portion 71 is disposed on the housing 80 in an upward direction. Figure 6 As shown, the sounding body 70 is configured such that the sounding portion 71 is exposed from the housing 80. The sounding portion 71 includes the cone of the speaker, and may also include a net, grid or slit-shaped speaker cover disposed above the cone. In addition, the sounding body 70 may also be a buzzer.

[0073] The sound emitted from the sound-emitting body 70 reaches the user through the space in the dash panel 1. For example, when a device in which a speaker is provided inside a frame is mounted on the dash panel 1 as in the prior art, the sound emitted from the speaker passes through the frame and then further through the dash panel 1 to reach the user. On the other hand, according to the structure of the display device 100 of the present embodiment, since the sound emitted from the sound-emitting body 70 reaches the user through the dash panel 1, it is easy to hear the sound emitted from the sound-emitting body 70.

[0074] like Figure 1 As shown in FIG. 1 and FIG. 2 , the housing 80 is fixed to the upper side of the cover 21 and accommodates the sounding body 70. The housing 80 is formed of a well-known resin material in a box shape that is open downward.

[0075] like Figure 8 As shown, the housing 80 includes a rectangular main wall portion 81 , an outer peripheral wall 82 extending downward from outer edges corresponding to four sides of the main wall portion 81 , a housing portion 83 , a protrusion 84 , a wiring protection portion 85 , and a hook 87 .

[0076] like Figure 7 As shown, the main wall portion 81 is opposed to the front portion 1a of the front panel 1 in the vertical direction. A heat dissipation slit 82a is formed on the outer peripheral wall 82 for releasing the heat trapped between the housing 80 and the cover 21. The heat generated by the first circuit element S1 is transferred to the cover 21 in the order of the first heat conducting sheet T1 and the first raised portion U1. The heat generated by the second circuit element S2 is transferred to the cover 21 in the order of the second heat conducting sheet T2 and the second raised portion U2. The heat dissipation slit 82a can release the heat transferred to the cover 21 to the outside.

[0077] The housing portion 83 is a portion that is recessed downward from the main wall portion 81 in accordance with the shape of the sounding body 70. The housing portion 83 functions as a sound box for the sounding body 70. The housing portion 83 has a bottom surface 83a that faces the lower surface of the sounding body 70. Figure 6 As shown, the back side of the sound-emitting body 70 (specifically, the back side of the sound-emitting portion 71 of the sound-emitting body 70) is covered by the bottom surface 83a. That is, the portion formed by the bottom surface 83a of the housing portion 83 functions as the back cavity of the sound-emitting body 70. That is, it is considered that the sound emitted from the back side of the sound-emitting body 70 is a sound (a sound wave with a reverse phase) with respect to the sound (a sound wave with a positive phase) emitted from (the front side of) the sound-emitting body 70, but assuming that the back side of the sound-emitting body 70 is not covered by the bottom surface 83a, in this case, the sound with the reverse phase passes through the open portion of the housing 80 that is not covered by the bottom surface 83a, and then, is emitted to the outside of the housing 80 through the heat dissipation slit 82a (which also functions as a sound-emitting hole) connected to the open portion. Therefore, it is considered that the sound emitted from the sounding body 70 (the front side) is affected by the sound of the opposite phase, and its sound pressure is reduced (weakened), but in this embodiment, the back side of the sounding body 70 is covered by the bottom surface 83a, thereby suppressing the reduction of the sound pressure (the part formed by the bottom surface 83a functions as the back cavity). In addition, the housing 80 is formed with a support portion 88 and a surrounding wall 89 surrounding the support portion 88. Figure 6 As shown, the support portion 88 supports the outer edge of the lower surface of the sounding body 70. In this way, the lower surface of the sounding body 70 supported by the support portion 88 faces the bottom surface 83a of the receiving portion 83 with a gap therebetween. Fig.11 As shown, the surrounding wall 89 is provided so as to protrude upward from the main wall portion 81 and surround the outer periphery of the sounding body 70 .

[0078] The housing 80 has a plurality of hooks 87 for fixing the sounding body 70. In the present embodiment, three hooks 87 are provided at equal intervals in the circumferential direction of the receiving portion 83 formed into a substantially circular shape in a manner consistent with the shape of the sounding body 70. Figure 8 , Fig.11 As shown, the hook 87 located most forward among the three hooks 87 is provided so as to be close to the heat dissipation slit 82 a formed in the outer peripheral wall 82 connected to the wiring protection portion 85 .

[0079] like Figure 6 As shown, the plurality of hooks 87 each have an inclined surface 87a that contacts the sounding body 70, and the inclined surface 87a is used to push the sounding body 70 toward the bottom surface 83a (ie, downward). Figure 6 In the figure, only one hook 87 is shown. As a result, the sounding body 70 is pressed against the support portion 88 and stably supported by the support portion 88. Figure 8 As shown, the housing 80 has a screw N (see Fig.11) is fixed. The hole H is formed in the support portion 88. The hole H may be a bottomed hole or a through hole. In the present embodiment, three holes H are provided at equal intervals in the circumferential direction of the receiving portion 83, and are respectively provided between the hooks 87 adjacent to each other in the circumferential direction of the receiving portion 83. That is, the sounding body 70 is fixed to the housing 80 by the hooks 87 and the screws N.

[0080] The protrusion 84 protrudes upward from the main wall 81, that is, from the dash panel 1. Four protrusions 84 are provided corresponding to the four corners of the main wall 81. A fitting hole 84a is formed in each of the four protrusions 84. Figure 7 As shown, the fitting hole 84a is fitted with the protruding member 1c provided from the front portion 1a of the dash panel 1 toward the housing 80. Although the details are not shown, four protruding members 1c are provided corresponding to the four fitting holes 84a. By fitting the protruding member 1c into the fitting hole 84a, the housing 80 is fixed to the dash panel 1. As the fitting of the protruding member 1c and the fitting hole 84a, a well-known fixing method such as press-fitting, hook, and clip can be used. In addition, the fitting hole 84a can be a bottomed hole or a through hole.

[0081] like Figure 6 As shown, the wiring protection portion 85 protects a portion of the wiring 50. The wiring protection portion 85 is formed continuously with the lower end of the outer peripheral wall 82 and faces a portion of the side wall portion 211a of the cover 21. The wiring 50 passes through the gap G between the cover 21 and the housing 80 from the sounding body 70 to reach the circuit substrate 30. Specifically, the wiring protection portion 85 covers the portion of the wiring 50 that goes from the gap G to the circuit substrate 30.

[0082] On one side of the cover 21 in the wiring protection part 85, there are formed locking parts 85a and 85b for locking a part of the wiring 50. The locking parts 85a and 85b are formed at the position where the wiring 50 extending from the sounding body 70 is guided to the lower surface 30b of the circuit substrate 30, and a part of the wiring 50 is locked by a hook or clip mechanism. Figure 8 As shown in FIG. 8 , a recessed portion 86 is formed in a portion of the outer peripheral wall 82 located above the wiring protection portion 85. Fig. 9 As shown, a locking portion 86 a for locking a part of the wiring 50 is also formed on the lower surface of the recessed portion 86 .

[0083] That is, the housing 80 locks the wiring 50 extending from the sounding body 70 in the order of the locking portion 86a, the locking portion 85a, and the locking portion 85b, and guides it to the lower surface 30b of the circuit substrate 30. Fig.10 As shown, the wire 50 guided in this way passes through the above-mentioned notch 211b and is connected to the lower surface 30b of the circuit board 30 via the connector C2.

[0084] like Figure 5As shown, the lower cover 90 covers the cover portion 21 of the support body 20 from below and is attached to the cover portion 21. The circuit board 30 is located in the space formed between the lower cover 90 and the cover portion 21. That is, the lower cover 90, which is generally concave, is configured to accommodate the circuit board 30.

[0085] In addition, the present invention is not limited to the above embodiments and drawings. Changes (including deletion of structural elements) can be appropriately implemented without changing the main purpose of the present invention. For example, the support body 20 may not be entirely formed of metal, as long as at least the cover 21 is formed of metal.

[0086] The display device 100 described above can be described from the following viewpoints A to G.

[0087] (A1) The display device according to aspect A of the present invention has:

[0088] A display unit having a display surface exposed from a front panel of the vehicle and displaying an image on the display surface;

[0089] A circuit substrate, which is located in the front panel;

[0090] a support body located in the dash panel, comprising a cover portion covering the circuit substrate from above and a vertical wall portion rising upward relative to the cover portion, the display portion being supported by the vertical wall portion; and

[0091] A sound-generating body is located between the front panel and the cover.

[0092] According to this structure, since the sound emitted from the sound-emitting body reaches the user through the dash panel, it is easy to hear the sound emitted by the sound-emitting body. In addition, since the sound-emitting body cannot be directly observed by the user, the appearance quality is good.

[0093] (A2) The display device according to aspect A further includes a housing fixed to an upper side of the cover portion and accommodating the sounding body.

[0094] According to this structure, it is easy to assemble the sounding body to the housing.

[0095] (A3) The housing is provided with a fitting hole which fits with a protruding member provided from the dash panel toward the housing.

[0096] According to this structure, the housing or the display device can be easily fixed to the dash panel.

[0097] (A4) The housing has:

[0098] a main wall portion, which faces the dash panel in the up-down direction;

[0099] a receiving portion, which is recessed downward from the main wall portion and receives the sound-emitting body; and

[0100] a protrusion protruding upward from the main wall portion,

[0101] The fitting hole is formed in the protrusion.

[0102] According to this structure, the housing or the display device can be fixed to the dash panel more easily.

[0103] (B1) A display device according to aspect B of the present invention includes:

[0104] A display unit having a display surface exposed from a front panel of the vehicle and displaying an image on the display surface;

[0105] A circuit substrate, which is located in the front panel;

[0106] a support body, which is located in the front panel and has a cover portion covering the circuit substrate from above and a vertical wall portion standing upward relative to the cover portion, and the display portion is supported by the vertical wall portion;

[0107] a sound-generating body, which is located between the front panel and the cover;

[0108] a housing fixed to the upper side of the cover and accommodating the sound-emitting body; and

[0109] wiring that electrically connects the sounding body to the circuit substrate,

[0110] The wiring extends from the sounding body through a gap between the cover and the housing to reach the circuit board.

[0111] The housing has a wiring protection portion that covers a portion of the wiring that extends from the gap to the circuit substrate.

[0112] According to this structure, the sound emitted by the sounding body can be easily heard, and the appearance quality is good, similar to the viewpoint A. In addition, the wiring protection part can protect the wiring from the outside of the device.

[0113] (B2) A locking portion for locking a part of the wiring is formed on one side of the cover portion in the wiring protection portion.

[0114] According to this structure, wiring processing is easy.

[0115] (B3) The wiring extends from the sound-emitting body through the gap and is connected to the lower surface of the circuit board.

[0116] According to this structure, the lower surface of the circuit board can be used efficiently.

[0117] (B4) at least the cover portion of the support body is formed of metal,

[0118] The cover has a side wall portion facing the wiring protection portion,

[0119] The side wall portion has a notch formed therein for allowing a portion of the wiring to pass therethrough.

[0120] According to this structure, the cover can have an electromagnetic wave shielding function while ensuring a path for the wiring to the circuit board.

[0121] (C1) A display device according to aspect C of the present invention includes:

[0122] A display unit having a display surface exposed from a dash panel of the vehicle and displaying an image on the display surface; and

[0123] A circuit substrate is located below the display unit in the dash panel, protrudes forward of the display surface, and is electrically connected to the display unit.

[0124] According to this structure, it is possible to prevent the generation of ineffective space behind the display unit in the dash panel. For example, since a device such as a HUD (Head-Up Display) is sometimes provided behind the display unit (i.e., between the display unit and the windshield), it is meaningful to ensure the space behind the display unit.

[0125] (C2) The display device according to aspect C further includes a support body, which is located in the front panel and includes a cover portion covering the circuit substrate from above and a vertical wall portion rising upward relative to the cover portion, and the display portion is supported by the vertical wall portion.

[0126] At least the cover portion of the support body is formed of metal,

[0127] The cover has a substrate accommodating portion for accommodating the circuit substrate at the lower side of the cover.

[0128] The circuit substrate has a main surface facing upward.

[0129] At least a portion of an outer edge of the main surface is in surface contact with the substrate housing portion.

[0130] According to this structure, the gap between the cover and the circuit board can be reduced, and the cover can more effectively perform the electromagnetic wave shielding function.

[0131] (C3) the cover portion has an upper wall portion facing the main surface,

[0132] The upper wall portion has a recessed portion recessed toward the circuit substrate.

[0133] According to this configuration, a recessed portion for heat dissipation can be ensured in the cover portion that performs a shielding function.

[0134] (C4) the recess has a first raised portion and a second raised portion raised from a lower surface of the recess toward the circuit substrate,

[0135] A first circuit element abutting against a first heat conducting sheet provided on the first raised portion and a second circuit element abutting against a second heat conducting sheet provided on the second raised portion are mounted on the main surface.

[0136] The first raised portion and the second raised portion have different distances from the circuit substrate.

[0137] The first heat conducting sheet and the second heat conducting sheet have the same thickness.

[0138] According to this configuration, a common sheet can be used for the first heat conduction sheet and the second heat conduction sheet.

[0139] (C5) The display device according to aspect C further includes a conductive member, which is sandwiched between the lower surface of the recess and the ground pattern formed on the main surface of the circuit substrate and has elasticity.

[0140] The elastic force of the conductive component acts on the lower surface and the circuit substrate respectively.

[0141] According to this structure, the cover can perform a shielding function and the cover and the circuit board can each have a cushioning property.

[0142] (C6) The support is made of metal,

[0143] A through hole for passing a flexible member that electrically connects the display unit and the circuit board is formed between the upright wall portion and the cover portion in the support body.

[0144] According to this structure, the flexible member can be easily protected. In addition, "the support body is formed of metal" is not limited to the entire support body being formed of metal, and also includes a mode in which a part of the standing wall portion is formed of a resin portion.

[0145] (D1) A display device according to aspect D of the present invention comprises:

[0146] a display unit that displays an image;

[0147] a sound-producing body, which produces sound;

[0148] A circuit substrate electrically connected to the sound-generating body;

[0149] a cover member that accommodates the circuit substrate; and

[0150] The housing is formed with a concave receiving portion for receiving the sound-emitting body.

[0151] The back side of the sound-emitting body is covered by the bottom surface of the housing portion.

[0152] According to this configuration, since the structure of the back side of the sound-emitting body can be determined by the structure of the housing relative to the sound-emitting body, it is easy to determine the back cavity structure of the sound-emitting body.

[0153] (D2) The housing has a plurality of hooks for fixing the sound-generating body.

[0154] According to this structure, the sounding body can be easily assembled to the housing.

[0155] (D3) The plurality of hooks have inclined surfaces that come into contact with the sound-generating body, and the sound-generating body is pressed toward the bottom surface by the inclined surfaces.

[0156] According to this structure, the sounding body can be stably fixed to the housing.

[0157] (D4) the housing has a main wall portion forming the housing portion and an outer peripheral wall connected to the main wall portion,

[0158] A heat dissipation gap is formed on the outer peripheral wall.

[0159] According to this structure, the heat trapped in the housing can be released through the heat dissipation gap. In addition, since the back side of the sound-emitting body is covered by the bottom surface of the housing as described above, even if the heat dissipation gap is provided in this way, it is possible to prevent the sound pressure from being reduced due to the interference of the reverse-phase sound waves of the sound-emitting body with the normal-phase sound waves due to leakage from the heat dissipation gap to the outside.

[0160] (D5) The housing has a hole for fixing the sounding body with a screw.

[0161] According to this structure, the sounding body can be fixed to the housing more firmly.

[0162] (E1) The display device according to aspect E of the present invention comprises:

[0163] a display unit that displays an image;

[0164] a circuit substrate electrically connected to the display portion;

[0165] a support body including a cover portion covering the circuit substrate from above and a standing wall portion standing upward relative to the cover portion, the display portion being supported by the standing wall portion; and

[0166] a housing fixed to the upper side of the cover portion,

[0167] At least the cover portion of the support body is formed of metal,

[0168] A heat dissipation gap is formed on the shell.

[0169] According to this structure, the heat generated by the circuit board can be transferred into the housing through the metal cover and released to the outside through the heat dissipation gap. Therefore, the heat generated by the circuit board can be released to the outside well.

[0170] (E2) The heat dissipation gap is formed on the outer peripheral wall of the shell.

[0171] According to this structure, the area other than the outer peripheral wall of the housing can be effectively utilized. For example, a housing portion for housing the sounding body can be formed on the main wall portion of the housing in the manner described above.

[0172] (E3) A heat conductive sheet is provided between the cover and the circuit element mounted on the circuit substrate.

[0173] According to this structure, the heat generated by the circuit board can be efficiently transferred to the cover portion.

[0174] (F1) A display device according to aspect F of the present invention comprises:

[0175] The display unit comprises: a display that displays an image; and a cover glass that is fixed to the display and includes a transmission area that transmits the image;

[0176] a circuit substrate electrically connected to the display; and

[0177] a support body including a cover portion covering the circuit substrate from above and a standing wall portion standing upward relative to the cover portion, wherein the display portion is supported by the standing wall portion,

[0178] The vertical wall portion includes a main plate portion and a frame portion protruding from the periphery of the main plate portion toward the cover glass.

[0179] The display is located in a room surrounded by the main board and the frame in the vertical wall.

[0180] The rear surface of the cover glass is bonded and fixed to the frame edge.

[0181] The rear surface of the display is bonded and fixed to the main board portion.

[0182] According to this structure, the display unit can be fixed to the vertical wall portion behind it by bonding. In addition, the bonding area between the display unit and the vertical wall portion can be ensured, so the force for fixing the display unit can be ensured by a simple structure. In addition, since the display unit is also bonded to the main board portion, it is also possible to adopt a specification that narrows the frame edge portion (narrow frame edge specification). As a result, the appearance quality of the display device can be improved.

[0183] (F2) The main board portion is provided with a plurality of protrusions protruding toward the display.

[0184] The rear surface of the display is adhesively fixed to the plurality of protrusions.

[0185] According to this configuration, the bonding location on the rear surface of the display can be determined in advance, and the bonding and fixing location during assembly can be easily grasped.

[0186] (F3) generating a gap between the rear surface of the display and the plurality of protrusions,

[0187] The rear surface of the display is bonded and fixed to the plurality of protrusions by the adhesive filling the gaps.

[0188] According to this structure, since the dimensional deviation can be absorbed by the gap between the rear surface of the display and the convex part of the vertical wall part, the influence on the appearance (peripheral part of the display) after bonding and fixing can be reduced, and the display part can be firmly bonded to the vertical wall part.

[0189] (F4) the rear surface of the cover glass is bonded and fixed to the frame edge portion by a double-sided tape,

[0190] The rear surface of the display is bonded and fixed to the main board portion by an adhesive.

[0191] According to this structure, the cover glass in the structural elements of the display part can be positioned relative to the frame part and fixed by double-sided tape, and the display can be firmly fixed to the main board part by adhesive. For example, after the adhesive is applied to the main board part, before the adhesive is cured, the cover glass can be positioned relative to the frame part of the vertical wall part and fixed by double-sided tape. In addition, the rear surface of the cover glass can also be fixed to the frame part by adhesive.

[0192] (G1) A display device according to aspect G of the present invention comprises:

[0193] A display unit having a display surface exposed from a front panel of the vehicle and displaying an image on the display surface;

[0194] a circuit substrate located in the dash panel; and

[0195] a support body, which is located in the dash panel and has a cover portion covering the circuit substrate from above and a vertical wall portion rising upward relative to the cover portion, and the display portion is supported by the vertical wall portion,

[0196] The vertical wall portion includes a metal portion and a resin portion formed integrally.

[0197] The cover is formed of metal and is integrated with the metal portion of the vertical wall.

[0198] A portion of the upright wall portion exposed from the dash panel is formed by the resin portion.

[0199] According to this configuration, since the portion exposed from the dash panel is the resin portion, it is possible to suppress the portion exposed from the dash panel from being heated to a high temperature.

[0200] (G2) the resin portion includes an upper portion located above the dash panel and a lower portion located below the dash panel,

[0201] The lower portion is provided with an engaging portion that engages with a fixing member fixed to the dash panel.

[0202] According to this structure, since the resin portion reaches the bottom of the dash panel, it is possible to prevent the user from viewing the metal portion through the opening formed in the dash panel for exposing the display portion and the vertical wall portion above the dash panel, thereby improving the appearance quality of the display device. In addition, the engaging portion formed by the resin portion makes it easy to assemble the display device to the dash panel of the vehicle.

[0203] (G3) A connector connected to a wiring harness of the vehicle is mounted on the circuit board.

[0204] The cover portion includes a top cover portion that covers the connector from above.

[0205] According to this structure, the connector can be protected. For example, when the wiring harness is attached to or detached from the connector, the connector can be prevented from being separated from the circuit board.

[0206] Furthermore, the display devices according to aspects D, E, and F of the present invention may be mounted on transportation vehicles other than vehicles (construction machinery, airplanes, ships, etc.).

[0207] In the above description, in order to facilitate the understanding of the present invention, the description of matters of the well-known technology has been appropriately omitted.

[0208] The present invention can be implemented in various embodiments and variations without departing from the broad spirit and scope of the present invention. In addition, the above-mentioned embodiments are used to illustrate the present invention and do not limit the scope of the present invention. That is, the scope of the present invention is represented by the claims rather than the embodiments. Moreover, various variations implemented within the scope of the claims and the utility models equivalent thereto are deemed to be within the scope of the present invention.

Claims

1. A display device, characterized in that: The display device has: A display unit having a display surface exposed from a front panel of the vehicle, the display unit displaying an image on the display surface; A circuit substrate, which is located in the front panel; as well as A support body having: a cover portion located in the front panel and covering the circuit substrate from above; and a vertical wall portion rising upward relative to the cover portion, wherein the support body supports the display portion through the vertical wall portion. The vertical wall portion includes a metal portion and a resin portion formed integrally. The cover is formed of metal and is integrated with the metal part of the vertical wall. A portion of the upright wall portion exposed from the dash panel is formed by the resin portion.

2. The display device according to claim 1, characterized in that The resin portion includes an upper portion located above the dash panel and a lower portion located below the dash panel. The lower portion is provided with an engaging portion that engages with a fixing member fixed to the dash panel.

3. The display device according to claim 1 or 2, characterized in that: A connector connected to a wiring harness of the vehicle is mounted on the circuit board. The cover portion includes a top cover portion that covers the connector from above.

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