Image display device

Abstract

To provide an image display device that can suppress the occurrence of rattles.SOLUTION: An image display device 100 comprises: a housing 10 in which an opening 10a is formed in an upper wall 11a, and which accommodates a light source that emits light toward the opening 10a; a liquid crystal display portion 20 which is disposed at a position that closes the opening 10a, and emits the light from the light source as display light L for an image; a bezel portion 30 which is formed in a frame shape along an edge of the opening 10a and is fixed to the housing 10 in a state where the liquid crystal display portion 20 is sandwiched with the edge of the opening 10a; and a flexible printed circuit board portion 40 which is electrically connected to the liquid crystal display portion 20 and is attached to an outer surface of a side wall 11b of the housing 10 via an adhesive material.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to an image display device. [Background technology]

[0002] For example, Patent Document 1 discloses a head-up display device including a display unit having a liquid crystal display (LCD) that displays an image, a light source that irradiates the display unit with light, and a plane mirror and a concave mirror that project the display light that has passed through the display unit, with a transparent member disposed in contact with one surface of the LCD that faces the light source. In this head-up display, a wire grid polarizing film and a diffuser are disposed at a position of the transparent member facing the light source. Patent Document 1 claims that the above configuration reduces the control load and suppresses temperature rise. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-185410 Summary of the Invention [Problem to be solved by the invention]

[0004] In an image display device used in a head-up display device or the like, rattles in a liquid crystal display unit or a display control unit connected to the liquid crystal display unit may affect the image displayed by the image display device. It is therefore desirable to suppress rattles in a vehicle display device.

[0005] An object of the present invention is to provide an image display device that can suppress the occurrence of rattles. [Means for solving the problem]

[0006] The image display device of the present invention comprises a housing having an opening formed in its upper wall and accommodating a light source that irradiates light toward the opening; a liquid crystal display unit that is positioned to cover the opening and emits light from the light source as display light for an image; a bezel unit that is formed in a frame shape along the edge of the opening and is fixed to the housing with the liquid crystal display unit sandwiched between it and the edge of the opening; and a flexible printed circuit board unit that is electrically connected to the liquid crystal display unit and is attached to the outer surface of the side wall of the housing via an adhesive material. [Effects of the Invention]

[0007] The image display device according to the present invention has an effect of being able to suppress the occurrence of rattles. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic diagram showing a vehicle display device including an image display device according to an embodiment. [Figure 2] FIG. 2 is a perspective view showing the image display device according to the embodiment. [Figure 3] FIG. 3 is an exploded perspective view showing the image display device according to the embodiment. [Figure 4] FIG. 4 is a perspective view showing an image display device according to the embodiment. [Figure 5] FIG. 5 is a perspective view showing an image display device according to the embodiment. [Figure 6] FIG. 6 is a perspective view showing an image display device according to the embodiment. [Figure 7] FIG. 7 is a cross-sectional view showing an image display device according to an embodiment. [Figure 8] FIG. 8 is a cross-sectional view showing a connector device according to an embodiment. [Figure 9] FIG. 9 is an enlarged cross-sectional view showing a connector device according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] An image display device according to an embodiment of the present invention will be described in detail below with reference to the drawings. Note that the present invention is not limited to the embodiment. Furthermore, the components in the following embodiments include those that can be easily imagined by a person skilled in the art or those that are substantially the same.

[0010] [Embodiment] An embodiment will be described with reference to FIGS. 1 to 9. FIG. 1 is a schematic diagram showing a vehicle display device including an image display device according to an embodiment, FIG. 2 is a perspective view showing the image display device according to an embodiment, FIG. 3 is an exploded perspective view showing the image display device according to an embodiment, FIG. 4 is a perspective view showing the image display device according to an embodiment, FIG. 5 is a perspective view showing the image display device according to an embodiment, FIG. 6 is a perspective view showing the image display device according to an embodiment, FIG. 7 is a cross-sectional view showing the image display device according to an embodiment, FIG. 8 is a cross-sectional view showing the image display device according to an embodiment, and FIG. 9 is an enlarged cross-sectional view showing the image display device according to an embodiment. Note that, for the sake of explanation, a bezel portion is omitted in FIGS. 4 and 5. Also, FIG. 7 is a cross-sectional view taken along line AA in FIG. 2, FIG. 8 is a cross-sectional view taken along line BB in FIG. 2, and FIG. 9 is an enlarged cross-sectional view of region C shown in FIG. 8.

[0011] 1, an image display device 100 according to the embodiment is a display device that emits display light L for an image, and is applied to a vehicle display device 200 that is mounted on a vehicle 300 such as an automobile. The vehicle display device 200 according to the embodiment is a head-up display device.

[0012] The vehicular display device 200 is disposed inside the dashboard of the vehicle 300, and emits display light L toward a reflective surface of a display member 301 of the vehicle 300. In the embodiment, the display member 301 is a windshield. In the embodiment, the display member 301 is disposed in front of the driver of the vehicle 300. The reflective surface of the display member 301 may be coated with a semi-transparent coating that reflects part of the incident light and transmits another part of the light. The display light L emitted toward the reflective surface of the display member 301 is reflected from the reflective surface to an eye point EP of the vehicle 300, and is visually recognized as a virtual image by the driver.

[0013] The vehicle display device 200 is configured to include the image display device 100 according to the embodiment. In the embodiment, the vehicle display device 200 includes a case 201, a first reflecting member 202, and a second reflecting member 203 in addition to the image display device 100.

[0014] The case 201 accommodates and supports the first reflecting member 202, the second reflecting member 203, and the image display device 100. The case 201 has an opening 201a that communicates between the inside and outside of the case 201. The opening 201a is provided in the case 201 at a position facing the display member 301. The vehicle display device 200 emits display light L from the case 201 toward the display member 301 through the opening 201a. The display light L is light that is emitted from the image display device 100 and reflected by the first reflecting member 202 and the second reflecting member 203.

[0015] The first reflecting member 202 and the second reflecting member 203 are disposed on the optical path from the image display device 100 to the display member 301, and are an optical system that reflects the display light L emitted from the image display device 100 toward the display member 301. The first reflecting member 202 has a flat reflecting surface and is disposed at a position facing the image display device 100. The first reflecting member 202 reflects the display light L emitted from the image display device 100 toward the second reflecting member 203. The second reflecting member 203 has a concave curved reflecting surface and is disposed at a position facing the first reflecting member 202. The second reflecting member 203 reflects the display light L reflected by the first reflecting member 202 toward the display member 301 through the opening 201 a. In the embodiment, the second reflecting member 203 functions as a magnifying mirror. That is, the second reflecting member 203 reflects the display image so that the display image represented by the display light L after being reflected by the second reflecting member 203 is larger than the display image represented by the display light L before being reflected by the second reflecting member 203.

[0016] 2 emits a display image projected onto a display member 301 as display light L. As shown in FIG. 3, the image display device 100 according to the embodiment includes a housing 10, a liquid crystal display unit 20, a bezel unit 30, a flexible printed circuit board unit 40, an elastic member 50, a glass plate 60, a diffusion plate 70, and a heat conduction sheet 80.

[0017] The housing 10 is a box-shaped member that houses a light source (not shown) therein. The light source is, for example, an LED (Light Emitting Diode) mounted on a substrate or the like. The housing 10 of the embodiment is a metal housing. The housing 10 is formed of a metal material with high thermal conductivity, such as aluminum. In the embodiment, the housing 10 is composed of an upper housing 11 and a lower housing 12.

[0018] The upper housing 11 includes a rectangular plate-shaped top wall 11a and side walls 11b extending vertically from each side of the top wall 11a, and is formed in a box shape with an open bottom. The lower housing 12 includes a rectangular plate-shaped bottom wall 12a and side walls 12b extending vertically from each side of the bottom wall 12a, and is formed in a box shape with an open top.

[0019] The housing 10 is formed into a box shape by assembling the upper housing 11 and the lower housing 12 so that the lower opening is aligned with the upper opening, and the housings are fixed in place with fixing members such as screws. In this embodiment, the side walls 11b of the upper housing 11 are composed of a first side wall 11b1, a second side wall 11b2, a third side wall 11b3, and a fourth side wall 11b4. In the upper housing 11, the first side wall 11b1 and the second side wall 11b2 face each other in a front-to-rear direction perpendicular to the up-to-down direction extending from the upper housing 11 to the lower housing 12. In addition, in the upper housing 11, the third side wall 11b3 and the fourth side wall 11b4 face each other in a width direction perpendicular to the up-to-down direction and the front-to-rear direction.

[0020] The top wall 11a is disposed so as to slope downward from the first side wall 11b1 to the second side wall 11b2. The top ends of the third side wall 11b3 and the fourth side wall 11b4 slope downward from the first side wall 11b1 side to the second side wall 11b2 side so as to fit along the top wall 11a. Here, the lower side in the vertical direction refers to the side of the lower housing 12 relative to the upper housing 11, and the upper side in the vertical direction refers to the side of the upper housing 11 relative to the lower housing 12.

[0021] In the embodiment, the positions of the lower ends of the first side wall 11b1, the second side wall 11b2, the third side wall 11b3, and the fourth side wall 11b4 in the vertical direction are located at substantially the same position. Therefore, the length of the first side wall 11b1 in the vertical direction is longer than the length of the second side wall 11b2 in the vertical direction. Furthermore, the positions of the upper ends of the four side walls of the lower housing 12 in the vertical direction are located at substantially the same position.

[0022] An opening 10a is formed in an upper wall 11a of the housing 10. In the embodiment, the opening 10a is formed in a rectangular shape. A light source housed in the housing 10 is disposed so as to irradiate light toward the opening 10a.

[0023] A heat dissipation member 12A is formed on the bottom wall 12a of the housing 10. The heat dissipation member 12A protrudes from the bottom wall 12a of the lower housing 12 toward the side opposite to the upper housing 11 (i.e., downward). The heat dissipation member 12A of the embodiment is made up of a plurality of plate-shaped portions protruding downward from the bottom wall 12a of the lower housing 12, and functions as heat dissipation fins.

[0024] Furthermore, flange portions 12B are formed on the lower housing 12 for fixing the image display device 100 to a case 201 (see FIG. 1) of the vehicle display device 200. The flange portions 12B in the embodiment are formed on both side walls of the lower housing 12 in the width direction. In the embodiment, the flange portions 12B are formed as plate-like portions protruding in the width direction from the side walls of the lower housing 12. Each flange portion 12B has an insertion hole formed therein through which a fastening member such as a bolt is inserted.

[0025] The liquid crystal display unit 20 is a so-called liquid crystal panel, and is configured, for example, by a light-transmitting or light-semitransmitting TFT liquid crystal (Thin Film Transistor Liquid Crystal Display). The liquid crystal display unit 20 emits light from the display surface on the front side when illuminated by a light source from the rear side. With this configuration, the liquid crystal display unit 20 emits light from the light source as display light L of an image from the display surface. Here, the light source is driven by power obtained from, for example, a battery in the vehicle 300 (see FIG. 1). As shown in FIGS. 3 and 4, in this embodiment, the liquid crystal display unit 20 is formed in the shape of a rectangular plate slightly larger than the opening 10a of the housing 10, and is positioned to cover the opening 10a.

[0026] The bezel 30 is disposed above the top wall 11a of the housing 10. The bezel 30 has an opening 30a that is rectangular when viewed from the top-bottom direction. The opening 30a of the bezel 30 is a portion through which display light L from the liquid crystal display unit 20 passes toward the first reflecting member 202 (see FIG. 1). In the embodiment, the bezel 30 is formed in a frame shape that follows the edge of the opening 10a of the housing 10. The bezel 30 is fixed to the housing 10 with the liquid crystal display unit 20 sandwiched between the bezel 30 and the edge of the opening 10a of the housing 10.

[0027] In the embodiment, as shown in FIG. 2 , protrusions 11A that protrude outward are formed on the third side wall 11b3 and the fourth side wall 11b4 of the upper housing 11 of the housing 10, and locking portions 31 that engage with the protrusions 11A are formed on the bezel 30. In the embodiment, the locking portions 31 are provided as a plurality of frame-shaped portions, each of which protrudes from the outer periphery of the bezel 30 toward the housing 10 and is arranged to correspond one-to-one with the protrusions 11A. The bezel 30 is attached to the housing 10 from above in the up-down direction. When the bezel 30 is attached to the housing 10, the locking portions 31 climb over the protrusions 11A and fit the protrusions 11A into the frames of the locking portions 31, thereby locking the bezel 30 to the housing 10.

[0028] The flexible printed circuit board unit 40 includes a display control unit 41 and a flexible, film-like wiring unit 42. The display control unit 41 in this embodiment is a rectangular plate-like member made of, for example, an IC chip, and is provided on the surface of the wiring unit 42 and electrically connected to the wiring unit 42. In this embodiment, an end of the flexible printed circuit board unit 40 (one end of the wiring unit 42) is connected to a first display edge 20a, which is one of the four sides of the liquid crystal display unit 20. Here, the first display edge 20a is the edge on the first side wall 11b1 side. The display control unit 41 is driven by power obtained from a battery or the like in the vehicle 300, and controls the operation of the liquid crystal display unit 20 connected via the wiring unit 42.

[0029] As shown in FIGS. 5 and 6, the flexible printed circuit board unit 40 is pulled out from the first display side 20a and attached to the outer surface of the side wall 11b (first side wall 11b1) of the housing 10 via an adhesive material. That is, the wiring portion 42 of the flexible printed circuit board unit 40 is attached to the outer surface of the side wall 11b (first side wall 11b1) of the housing 10 via an adhesive material, with the connection end portion on the liquid crystal display unit 20 side bent. Here, double-sided tape, for example, can be used as the adhesive material. In this case, for example, double-sided tape can be attached to the back surface of the wiring portion 42, and in this state, the back surface of the wiring portion 42 can be pressed against the outer surface of the side wall 11b (first side wall 11b1), thereby attaching the wiring portion 42 to the outer surface of the side wall 11b.

[0030] At the edge of the opening 10a in the housing 10 of the embodiment, a space is provided between the edge on the first side wall 11b1 side and the bezel portion 30, and the wiring portion 42 is connected to the first display edge 20a of the liquid crystal display portion 20 through the space.

[0031] In the image display device 100 according to the embodiment, the wiring section 42 is attached to the side wall 11b of the housing 10, and thereby the display control section 41 arranged on the wiring section 42 is fixed to the housing 10 via the wiring section 42. Note that the flexible printed circuit board section 40 may be provided with a connector or the like for electrically connecting the display control section 41 to an ECU (Electronic Control Unit) or the like of the vehicle 300 (see FIG. 1). In this case, the connector is provided on the surface of the wiring section 42 so as to be arranged on the side wall 11b (first side wall 11b1) of the housing 10 when the wiring section 42 is attached to the side wall 11b.

[0032] The elastic member 50 is a rubber-like or sponge-like member provided between the bezel part 30 and the liquid crystal display part 20. The elastic member 50 is, for example, a packing. In the embodiment, the elastic member 50 includes a first elastic member 51 and a second elastic member 52, as shown in FIGS. 3 and 4.

[0033] The first elastic member 51 and the second elastic member 52 are each formed in a long, thin plate or rod shape. As shown in FIG. 4, the first elastic member 51 is disposed on one end (the third side wall 11b3 side) of the liquid crystal display unit 20 in the extension direction of the first display edge 20a, and the second elastic member 52 is disposed on the other end (the fourth side wall 11b4 side) of the liquid crystal display unit 20 in the extension direction of the first display edge 20a. In the image display device 100 of the embodiment, the bezel 30 presses the liquid crystal display unit 20 against the housing 10 via the elastic members 50 at both ends of the liquid crystal display unit 20, thereby preventing rattle of the liquid crystal display unit 20. Furthermore, lifting of the liquid crystal display unit 20 in the vertical direction can also be prevented.

[0034] 7, a gap SP is provided between the first elastic member 51 and the second elastic member 52, at least between the connection end of the liquid crystal display unit 20 with the flexible printed circuit board unit 40 and the bezel unit 30. By providing the gap SP between the first elastic member 51 and the second elastic member 52, at the end (connection end) of the liquid crystal display unit 20 on the first display side 20a side, and the bezel unit 30, it is possible to prevent the elastic member 50 and the like from interfering with the connection portion (wiring unit 42 and the like) between the liquid crystal display unit 20 and the display control unit 41.

[0035] The glass plate 60 is a transparent glass member formed in a flat plate shape, and is disposed between the liquid crystal display unit 20 and the opening 10a of the housing 10. In this embodiment, the glass plate 60 is formed in a rectangular shape. As shown in FIG. 8, the glass plate 60 is disposed so as to be interposed between the edge of the upper wall 11a of the housing 10 and the liquid crystal display unit 20. The glass plate 60 functions as a heat conduction member.

[0036] The glass plate 60 of this embodiment is sapphire glass, which has a thermal conductivity at least higher than that of air. Sapphire glass is formed, for example, by artificially growing high-purity alumina (aluminum oxide) into large crystals. The sapphire glass 21 is bonded to the liquid crystal display unit 20 by optical bonding, for example, using OCA (Optical Clear Adhesive) or OCR (Optical Clear Resin).

[0037] By bringing the glass plate 60 into contact with the liquid crystal display unit 20, heat from the liquid crystal display unit 20 is more easily conducted to the glass plate 60. It is desirable that the contact area of ​​the glass plate 60 with the liquid crystal display unit 20 be large. For example, the glass plate 60 is in contact with the entire back surface of the liquid crystal display unit 20. It is preferable that the glass plate 60 covers the entire image display area of ​​the liquid crystal display unit 20. This makes it possible for the glass plate 60 to prevent stress from being applied to localized areas of the liquid crystal display unit 20, thereby suppressing whitening. The thickness of the glass plate 60 may be greater than the thickness of the liquid crystal display unit 20. The glass plate 60 in contact with the liquid crystal display unit 20 can increase the heat capacity of the liquid crystal display unit 20 and absorb heat generated by the liquid crystal display unit 20.

[0038] The diffusion plate 70 is a film-like member that diffuses light from the light source. The diffusion plate 70 of the embodiment is formed in a rectangular shape that is slightly larger than the glass plate 60. As shown in FIGS. 8 and 9, the diffusion plate 70 is disposed between the edge of the upper wall 11a of the housing 10 and the glass plate 60.

[0039] The thermally conductive sheet 80 is a sheet-like member having thermal conductivity, such as a thermal sheet. The thermally conductive sheet 80 has a thermal conductivity higher than that of at least air. In this embodiment, as shown in FIG. 3 , the thermally conductive sheet 80 includes a first thermally conductive sheet 81 and a second thermally conductive sheet 82.

[0040] The first thermally conductive sheet 81 and the second thermally conductive sheet 82 are formed as linearly extending sheets. The first thermally conductive sheet 81 and the second thermally conductive sheet 82 are provided on the edge of the opening 10a in the top wall 11a of the housing 10. At the edge of the opening 10a of the housing 10, the first thermally conductive sheet 81 is disposed on the edge on the first side wall 11b1 side, and the second thermally conductive sheet 82 is disposed on the edge on the second side wall 11b2 side. In the embodiment, the first thermally conductive sheet 81 and the second thermally conductive sheet 82 are disposed to sandwich the diffusion plate 70 in the front-rear direction. The first thermally conductive sheet 81 and the second thermally conductive sheet 82 are disposed to be interposed between the glass plate 60 and the housing 10.

[0041] At the edge of the opening 10a in the housing 10, grooves extending in the width direction are formed on the edge on the first side wall 11b1 side and the edge on the second side wall 11b2 side. The grooves formed on the edge on the first side wall 11b1 side are sized and shaped so that the first thermally conductive sheet 81 can be placed inside, and the depth of the grooves is slightly shallower than the thickness of the first thermally conductive sheet 81. The grooves formed on the edge on the second side wall 11b2 side are sized and shaped so that the second thermally conductive sheet 82 can be placed inside, and the depth of the grooves is slightly shallower than the thickness of the second thermally conductive sheet 82. With this configuration, the glass plate 60 is held in a state where it is slightly raised from the edge of the opening 10a in the housing 10. That is, spaces are formed between the edge of the opening 10a of the housing 10 on the third side wall 11b3 side and the glass plate 60, and between the edge of the opening 10a of the housing 10 on the fourth side wall 11b4 side and the glass plate 60. This configuration can prevent the glass plate 60 from coming into direct contact with the housing 10, and can prevent the glass plate 60 from being scratched by the housing 10 made of hard metal, for example.

[0042] As described above, the image display device 100 according to the embodiment includes a housing 10 having an opening 10a formed in an upper wall 11a and accommodating a light source that irradiates light toward the opening 10a, a liquid crystal display unit 20 that is positioned to cover the opening 10a and emits light from the light source as display light L for an image, a bezel unit 30 that is formed in a frame shape along the edge of the opening 10a and is fixed to the housing 10 with the liquid crystal display unit 20 sandwiched between the bezel unit 30 and the edge of the opening 10a, and a flexible printed circuit board unit 40 that is electrically connected to the liquid crystal display unit 20 and is attached to the outer surface of the side wall 11b of the housing 10 via an adhesive material.

[0043] In the image display device 100 according to the embodiment, the liquid crystal display unit 20 is fixed by the bezel unit 30, and the flexible printed circuit board unit 40 connected to the liquid crystal display unit 20 is attached and fixed to the housing 10 with an adhesive material, thereby making it possible to suppress rattle of the liquid crystal display unit 20 and the flexible printed circuit board unit 40. For example, even if the image display device 100 vibrates due to the running of the vehicle 300, rattle of the liquid crystal display unit 20 and the flexible printed circuit board unit 40 connected to the liquid crystal display unit 20 can be suppressed. Therefore, the effect of vibration on the display image displayed by the image display device 100 can be reduced.

[0044] The image display device 100 according to the embodiment further includes an elastic member 50 provided between the bezel portion 30 and the liquid crystal display portion 20.

[0045] The image display device 100 according to the embodiment can further suppress rattle of the liquid crystal display unit 20 by providing an elastic member 50 between the bezel unit 30 and the liquid crystal display unit 20. It can also suppress lifting of the liquid crystal display unit 20 in the vertical direction.

[0046] Furthermore, in the image display device 100 according to the embodiment, the liquid crystal display unit 20 is formed in the shape of a rectangular plate, an end of the flexible printed circuit board unit 40 is connected to a first display edge 20a, which is one of the four sides of the liquid crystal display unit 20, the elastic member 50 includes a first elastic member 51 and a second elastic member 52, the first elastic member 51 is arranged on one end of the liquid crystal display unit 20 in the extension direction of the first display edge 20a, and the second elastic member 52 is arranged on the other end of the liquid crystal display unit 20 in the extension direction of the first display edge 20a, and a gap SP is provided between the first elastic member 51 and the second elastic member 52, at least between the connection end of the liquid crystal display unit 20 with the flexible printed circuit board unit 40 and the bezel unit 30.

[0047] The image display device 100 according to the embodiment can prevent rattle of the liquid crystal display unit 20 by fixing both ends of the liquid crystal display unit 20 so as to be sandwiched between the elastic members 50 and the edge of the housing 10. Furthermore, by providing a gap SP between the bezel 30 and the end (connection end) of the liquid crystal display unit 20 on the first display side 20a side between the first elastic member 51 and the second elastic member 52, it is possible to prevent the elastic members 50 and the like from interfering with the connection portion (wiring portion 42 and the like) between the liquid crystal display unit 20 and the display control unit 41.

[0048] In the above embodiment, the windshield is used as the display member 301 of the vehicle 300, but the present invention is not limited to this. The display member 301 may be, for example, a combiner.

[0049] In the above embodiment, the vehicle display device 200 has been described as having two reflecting members (the first reflecting member 202 and the second reflecting member 203), but this is not limiting. For example, the vehicle display device 200 may have only one reflecting member. Furthermore, the vehicle display device 200 may directly emit the display light L to the display member 301.

[0050] Although the above embodiment has been described using an example in which double-sided tape is used as the adhesive material, the present invention is not limited to this. For example, the adhesive material may be an adhesive agent or the like.

[0051] In the above embodiment, the elastic member 50 is described as including the first elastic member 51 and the second elastic member 52, but this is not limiting. The elastic member 50 may be provided on an end portion of the liquid crystal display unit 20 other than the end portion on the first display side 20a side. For example, the elastic member 50 may be a single U-shaped elastic member arranged on an end portion of the liquid crystal display unit 20 other than the end portion on the first display side 20a side.

[0052] Furthermore, in the above embodiment, an example has been described in which the glass plate 60 is placed in contact with the liquid crystal display unit 20 using optical bonding such as OCA or OCR, but this is not limited to this, and the glass plate 60 may be placed in contact with the liquid crystal display unit 20 using other methods.

[0053] The contents disclosed in the above embodiments can be implemented in appropriate combinations. [Explanation of symbols]

[0054] 10: Housing 20:LCD display section 30: Bezel 40: Flexible printed circuit board section 41: Display control unit 42:Wiring section 50: Elastic member 51: First elastic member 52: Second elastic member 60: Glass plate 70: Diffuser 80: Thermal conductive sheet 81: First thermal conductive sheet 82: Second thermal conductive sheet 100: Image display device 200: Vehicle display device 300: Vehicle

Claims

1. a housing having an opening formed in an upper wall and accommodating a light source that irradiates light toward the opening; a liquid crystal display unit disposed at a position covering the opening and configured to emit light from the light source as image display light; a bezel portion formed in a frame shape along an edge of the opening and fixed to the housing with the liquid crystal display portion sandwiched between the bezel portion and the edge of the opening; a flexible printed circuit board unit electrically connected to the liquid crystal display unit and attached to an outer surface of the side wall of the housing via an adhesive material; An image display device comprising:

2. The display device further includes an elastic member provided between the bezel and the liquid crystal display. The image display device according to claim 1 .

3. The liquid crystal display unit is formed in a rectangular plate shape, an end of the flexible printed circuit board unit is connected to a first display side, which is one of four sides of the liquid crystal display unit; The elastic member includes a first elastic member and a second elastic member, the first elastic member is disposed on one end of the liquid crystal display unit in an extension direction of the first display side, the second elastic member is disposed on the other end of the liquid crystal display unit in the extension direction of the first display side, a gap is provided between the first elastic member and the second elastic member, at least between a connection end of the liquid crystal display unit with the flexible printed circuit board and the bezel unit; The image display device according to claim 2 .

Images