Screen reflection type display device

Abstract

To provide a screen reflection type display device capable of displaying a virtual image constantly having the same shape regardless of height and shape of a screen.SOLUTION: A screen reflection type display device (10) includes: a display device (20) including a housing (23) incorporating a circuit board (22) including a light source (21); and a screen (30) that displays a virtual image by causing a beam emitted by the display device (20) to be reflected. The screen (30) is supported by a vehicle body exterior part (35) so as to be vertically movable. The display device (20) is connected to the screen (30).SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a screen reflection type display device having a display device and a screen as its main components. [Background technology]

[0002] A conventional screen reflection type display device is disclosed in Patent Document 1, for example. In the screen reflection type display device disclosed in Patent Document 1, a transparent windshield (hereinafter referred to as a screen) that also serves as a video screen is set up on the steering handle, and a projector is embedded in the vehicle body.

[0003] Light from the projector is reflected off the screen, creating a virtual image that conveys various information to the driver.

[0004] By the way, most motorcycles have screens fixed to the handlebars, but there are also some with screen heights that can be adjusted. When the screen reflection type display device disclosed in Patent Document 1 is applied to a motorcycle with an adjustable screen height, there is a problem in that the virtual image distorts depending on the height and shape of the screen, making it impossible to display correctly.

[0005] It is undesirable for the virtual image to be distorted, so there is a demand for a screen reflective display device that can always display a virtual image of the same shape regardless of the height or shape of the screen. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-278153 Summary of the Invention [Problem to be solved by the invention]

[0007] An object of the present invention is to provide a screen reflection type display device that can always display a virtual image of the same shape regardless of the height or shape of the screen. [Means for solving the problem]

[0008] A screen reflection-type display device according to a first aspect includes a display device having a housing in which a circuit board including a light source is built, and a screen that displays a virtual image by reflecting light emitted by the display device, The screen is supported on an exterior portion of the vehicle body so as to be vertically movable, and the display device is connected to the screen.

[0009] In a second aspect of the screen reflection type display device that can be dependent on the first aspect, an opening is provided in the screen, and the display device is fixed to the screen via a hook-shaped body that fits into the lower edge of the opening.

[0010] In the screen reflection-type display device of the third aspect, a first stay portion is attached to the vehicle body exterior portion via a first rotation shaft, a second stay portion is attached to the tip of the first stay portion via a second rotation shaft, and the screen is attached to the second stay portion, so that the screen is supported on the vehicle body exterior portion so as to be vertically movable, The display device is attached to the vehicle exterior body portion so as to be rotatable about the first rotation shaft. That is, the display device is mechanically connected to the screen via the first rotation shaft, the first stay portion, the second rotation shaft, and the second stay portion. [Effects of the Invention]

[0011] According to the present invention, a screen reflection type display device is provided that can always display a virtual image of the same shape regardless of the height or shape of the screen. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a side view of a screen reflective display device according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a view taken along the arrow 2 in FIG. [Figure 3] 1(a) and 1(b) are diagrams illustrating the operation of the screen reflective display device according to the first embodiment. [Figure 4] 1(a) is an exploded view of a screen reflective display device according to a second embodiment of the present invention, and FIG. 1(b) is a side view of the screen reflective display device. [Figure 5] 10(a) to 10(c) are diagrams illustrating the operation of a screen reflective display device according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0013] An embodiment of the present invention will be described below with reference to the accompanying drawings. Example 1

[0014] Please refer to Fig. 1. Fig. 1 shows a screen reflection-type display device 10, whose main elements are a display device 20 having a housing 23 with a built-in circuit board 22 including a light source 21, and a screen 30 that displays a virtual image by reflecting light emitted by the display device 20. A part of the housing 23 is a window 24 through which light can pass.

[0015] For example, a fork member 31 is fixed to the bottom of the screen 30 by adhesive or the like, and this fork member 31 has a tongue-like portion 32 extending downward, and this tongue-like portion 32 has a long hole 33 extending vertically.

[0016] A bracket 36 extends upward from the exterior body part 35 of the vehicle, and two bolts 37, one at the top and one at the bottom, are screwed into the bracket 36. The screen 30 is fixed to the exterior body part 35 of the vehicle by placing the tongue-shaped part 32 on the bracket 36 and tightening the bolt 37. The tongue-shaped part 32 can be raised or lowered relative to the bracket 36 by loosening the bolt 37. That is, the screen 30 is supported on the exterior part 35 of the vehicle body so as to be vertically movable.

[0017] Referring to Figure 2, the screen 30 is provided with a slit-shaped opening 38. 1, the display device 20 is fixed to the screen 30 via a hook-shaped body 41 that fits into the lower edge of the opening 38. The hook-shaped body 41 bites into the screen 30 by tightening a set screw 42.

[0018] The use of the opening 38 and the hook-shaped body 41 provides the following advantages. That is, the display device 20 may fall due to vibrations, etc. At this time, the hook-shaped body 41 catches on the lower edge of the opening 38, which has the advantage of preventing the display device 20 from falling.

[0019] Preferably, the hook-shaped body 41 is formed as an integral protrusion on the housing 23. However, the hook-shaped body 41 may be manufactured separately from the display device 20 and fastened to the display device 20 with a bolt or the like.

[0020] As described above, the display device 20 is fixed to the screen 30. The opening 38 can be omitted and the display device 20 can be fixed directly or indirectly to the screen 30, so the fixing structure of the display device 20 is not limited to the structure shown in FIGS.

[0021] Next, refer to Figures 3(a) and (b). In FIG. 3(a), a light ray 44 emitted from the light source 21 strikes an area set on the screen 30 (hereinafter referred to as an area 45 where an image is desired to be reflected), and is reflected to display a virtual image. If necessary, loosen bolts 37 and raise screen 30 to the desired height (arrow (1)).

[0022] 3(b), the height of the screen 30 has changed. In this state, the bolt 37 is tightened. Since the display device 20 moves together with the screen 30, the position of the area 45 where it is desired to reflect the image does not change. As a result, it is possible to display a virtual image of the same shape at all times, regardless of the height or shape of the screen.

[0023] Next, a second embodiment of the present invention will be described with reference to the drawings. <Example 2>

[0024] Please refer to Figures 4(a) and (b). FIG. 4(a) is a diagram in which the display device 20 is separated to facilitate understanding of the structure.

[0025] Figure 4(a) shows a screen reflection type display device 10, the main components of which are a display device 20 having a housing 23 with a built-in circuit board including a light source, and a screen 30 that reflects the light emitted by this display device 20 to display a virtual image.

[0026] A first stay portion 52 is attached to the vehicle body exterior portion 35 via a first rotating shaft 51, and a second stay portion 54 is attached to the tip of this first stay portion 52 via a second rotating shaft 53, and the screen 30 is attached to this second stay portion 54 with a set screw 42.

[0027] Furthermore, the display device 20 is rotatably attached to the vehicle body exterior portion 35 via a first rotation shaft 51 . That is, the display device 20 is mechanically connected to the screen 30 via the first rotation shaft 51, the first stay portion 52, the second rotation shaft 53, and the second stay portion . Preferably, the knob 55 is formed integrally with the first rotary shaft 51 .

[0028] In Figure 4(b), when the knob 55 is turned in the loosening direction, both or either of the first stay part 52 and the display device 20 can be turned around the first rotation axis 51, and when the knob 55 is turned in the tightening direction, both the first stay part 52 and the display device 20 cannot rotate. Light rays 44 emitted from the light source strike an area 45 on the screen 30 where an image is to be reflected, and are reflected to display a virtual image.

[0029] Next, reference is made to FIGS. 5(a) to 5(c). In FIG. 5(a), the knob 55 is turned in the loosening direction. Next, the screen 30 is raised to a desired height, whereupon the first stay portion 52 and the display device 20 rotate around the first rotation axis 51 as shown by the arrow (2).

[0030] At this time, the tilt of the screen 30 also changes. To correct this change, the screen 30 is rotated around the second rotation axis 53 as shown by the arrow (3). As a result, the height of the screen 30 is adjusted as shown by the arrow (1), and the screen assumes the shape shown in Figure 5(b).

[0031] In Fig. 5(b), as shown by arrow (4), the display device 20 is rotated slightly around the first rotation shaft 51. Next, the knob 55 is rotated in the tightening direction. As a result, the display device 20 assumes the configuration shown in Fig. 5(c).

[0032] In FIG. 5(c), a light ray 44 emitted from the light source strikes an area 45 on the screen 30 where an image is to be reflected, and is reflected to display a virtual image. That is, even if the height of the screen 30 changes, the virtual image can always be displayed in the desired area 45.

[0033] The second embodiment shown in FIGS. 4(a) and 4(b) has the advantage that the opening 38 and the hook-shaped body 41 of the first embodiment shown in FIG. 1 can be omitted.

[0034] 4(a), a third rotation shaft may be set in addition to the first rotation shaft 51 and the second rotation shaft 53, and a knob 55 may be provided on this third rotation shaft. The third rotation shaft may then be provided on the first stay portion 52 (or the body exterior portion 35) near the first rotation shaft 51. However, this increases the number of rotation shafts, making the structure more complex. In this regard, the structure shown in FIG. 4(b) has the advantage that the number of rotation axes can be reduced.

[0035] Furthermore, the screen reflection type display device 10 according to the present invention is suitable for two-wheeled vehicles including scooters, but may also be applied to three-wheeled and four-wheeled buggies with adjustable screen heights.

[0036] Therefore, the screen reflective display device 10 according to the present invention may be modified as appropriate from the embodiment described in Figure 1 and Figures 4(a) and (b). In other words, the present invention is not limited to the embodiment as long as the functions and effects of the present invention are achieved. [Industrial Applicability]

[0037] The present invention is suitable for motorcycles equipped with height-adjustable screens. [Explanation of symbols]

[0038] 10...Screen reflective display device 20…Display device 21…Light source 22...Circuit board 23...Case 30...screen 35...Exterior body 38…Aperture 41...Hook-shaped body 44...ray of light 45...Area to be reflected 51...First rotation axis 52...First stay section 53...Second rotation axis 54...Second stay section.

Claims

1. The display device includes a housing having a built-in circuit board including a light source, and a screen that displays a virtual image by reflecting light emitted by the display device, The screen is supported on the exterior of the vehicle body so as to be vertically movable, A screen reflection type display device, wherein the display device is coupled to the screen.

2. An opening is provided in the screen, 2. The screen reflection type display device according to claim 1, wherein said display device is fixed to said screen via a hook-shaped member that fits into a lower edge of said opening.

3. a first stay portion is attached to the vehicle body exterior portion via a first rotation shaft, a second stay portion is attached to a tip of the first stay portion via a second rotation shaft, and the screen is attached to the second stay portion, whereby the screen is supported on the vehicle body exterior portion so as to be vertically movable; 2. The screen reflection type display device according to claim 1, wherein said display device is attached to said exterior portion of said vehicle body so as to be rotatable about said first rotation shaft.

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