Display device

Abstract

To improve the performance of a device.SOLUTION: The display apparatus DSP2 includes light sources 10 each including a plurality of light emitting units 11, an aerial image forming plate 20, and a light shielding member 30. As described above, the light shielding member 30 is disposed between the aerial image forming plate 20 and the light source 10. The light blocking member 30 can block a part of the source light L1 emitted from the light sources 10. Specifically, the light blocker 30 can selectively block light components (components L1 and L3) of the source light L4 emitted from the light sources 10 that travel parallel to the θ 1 direction or the θ 2 direction in a plan view.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a display device capable of forming an image in the air. [Background technology]

[0002] There is a technology for forming an image in the air by reflecting light emitted from a display, which serves as a light source, with multiple mirror plates (see, for example, International Publication No. 2016 / 132568 (Patent Document 1)). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2016 / 132568 Summary of the Invention [Problem to be solved by the invention]

[0004] The inventors of the present application have studied display devices that reflect light using multiple mirror plates and found that there is room for improvement in such display devices. For example, in the case of a display device that forms an image in the air by reflecting light emitted from a light source twice using mirror plates arranged at different angles, a secondary image (ghost) is visible in addition to a main image formed at a predetermined position. From the viewpoint of improving the display quality of the display device, it is preferable that the secondary images other than the main image are not visible. [Means for solving the problem]

[0005] A display device according to one aspect of the present invention includes a light source having a plurality of light-emitting elements, an aerial imaging plate having a plurality of mirror plates capable of forming an image in the air by reflecting light emitted from the light source, and a light-shielding member disposed between the aerial imaging plate and the light source and configured to block a portion of the light emitted from the light source. The plurality of mirror plates include a first mirror plate having a first reflecting surface facing a first direction and a second reflecting surface facing a direction opposite to the first direction, and a second mirror plate having a third reflecting surface facing a second direction perpendicular to the first direction and a fourth reflecting surface facing a direction opposite to the third reflecting surface. The second mirror plate partially overlaps with the first mirror plate in a third direction perpendicular to both the first and second directions, and is disposed closer to the light source than the first mirror plate. The light-shielding member is capable of selectively blocking light traveling parallel to the first direction or the second direction from the light emitted from the light source. [Brief explanation of the drawings]

[0006] [Figure 1] FIG. 10 is an explanatory diagram schematically illustrating a state in which light from a light source is imaged in the air. [Figure 2] 2 is a plan view of the light source shown in FIG. 1 as viewed from the light irradiation surface side. [Figure 3] FIG. 2 is a plan view of the aerial imaging plate shown in FIG. 1 as viewed from above. [Figure 4] FIG. 4 is a plan view showing an example of the configuration of the display device according to the present embodiment. [Figure 5] FIG. 5 is a side view of the display device shown in FIG. [Figure 6] 6 is a plan view of the light source and the plurality of light-blocking members shown in FIG. 5, when viewed so that the light-blocking surfaces are seen from the front. [Figure 7] 5 is an enlarged plan view showing the positional relationship between the light-emitting section shown in FIG. 4 and two light-shielding members located in the vicinity thereof. FIG. [Figure 8] 5 is a plan view showing an example of the configuration of a display device that is a modified example of the display device shown in FIG. [Figure 9] FIG. 9 is a side view of the display device shown in FIG. [Figure 10] 10 is a plan view of the light source and the plurality of light blocking members shown in FIG. 9 when viewed so that the light blocking surface appears to be facing forward. DETAILED DESCRIPTION OF THE INVENTION

[0007] Hereinafter, each embodiment of the present invention will be described with reference to the drawings. The disclosure is merely an example, and appropriate modifications that a person skilled in the art can easily conceive while maintaining the gist of the invention are naturally included within the scope of the present invention. Furthermore, in order to clarify the explanation, the drawings may show the width, thickness, shape, etc. of each part schematically compared to the actual embodiment. However, these are merely examples and are not intended to limit the interpretation of the present invention. Furthermore, in this specification and each drawing, elements similar to those described above with reference to the previous drawings may be designated by the same or related reference numerals, and detailed descriptions may be omitted as appropriate.

[0008] <Display device capable of forming images in the air> First, a method for displaying an image or video using a display device capable of forming an image in the air using light from a light source will be described. FIG. 1 is an explanatory diagram schematically showing a state in which light from a light source is formed in the air. FIG. 2 is a plan view of the light source shown in FIG. 1 as viewed from the light irradiation surface side. FIG. 3 is a plan view of the aerial imaging plate shown in FIG. 1 as viewed from above. As shown in FIG. 5, which will be described later, the display device DSP2 of this embodiment includes a light-shielding member 30 arranged between the aerial imaging plate 20 and the light source 10. FIGS. 1 to 3 show a display device DSP1, which is a study example of the display device DSP2 of this embodiment.

[0009] FIG. 3 shows the X direction, Y direction, θ1 direction, and θ2 direction. The X direction and Y direction intersect with each other. In the example described below, the X direction is perpendicular to the Y direction. The θ1 direction and θ2 direction intersect with each other. In the example described below, the θ1 direction is perpendicular to the θ2 direction. In the example described below, the θ1 direction and θ2 direction intersect with the X direction and Y direction. The X direction, Y direction, θ1 direction, and θ2 direction are included in the same plane (XY plane). In the following description, unless otherwise specified, the term "planar view" refers to the view of a plane parallel to the XY plane. As will be described later, the normal direction to the XY plane will be referred to as the "Z direction" or thickness direction. The X direction, Y direction, and Z direction intersect with each other, more specifically, are perpendicular to each other.

[0010] The display device DSP1 shown in FIG. 1 includes a light source 10 and an aerial imaging plate 20. The light source 10 includes a plurality of light-emitting units 11. Although FIG. 1 illustrates two light-emitting units, the number of light-emitting units 11 is not limited to two. For example, as shown in FIG. 2, the light source 10 includes a plurality of light-emitting units 11 arranged in an array (matrix). In the example shown in FIG. 2, the light source 10 includes a substrate 12 and a plurality of light-emitting units 11 arranged on the substrate 12. Each of the plurality of light-emitting units 11 is, for example, an LED element. For example, when a display device such as a liquid crystal display device is used as the light source 10, each of the plurality of light-emitting units 11 corresponds to one of a plurality of pixels partitioned by a light-shielding film (not shown).

[0011] 3, the aerial imaging plate 20 includes a plurality of mirror plates (mirror plate 21 and mirror plate 22). The aerial imaging plate 20 is an optical member that can form an image 101 in the air as shown in FIG. 1 by reflecting light emitted from the light source 10 twice by the mirror plate 21 and the mirror plate 22.

[0012] Mirror plate 21 has a reflecting surface 21m1 facing the θ1 direction. In the example shown in Fig. 3, mirror plate 21 has reflecting surfaces on both sides. That is, mirror plate 21 has a reflecting surface 21m1 facing the θ1 direction and a reflecting surface 21m2 facing the opposite direction to the θ1 direction.

[0013] Mirror plate 22 has a reflecting surface 22m1 facing the θ2 direction. In the example shown in Fig. 3, mirror plate 22 has reflecting surfaces on both sides. That is, mirror plate 22 has a reflecting surface 22m1 facing the θ2 direction and a reflecting surface 22m2 facing the opposite direction to the θ2 direction.

[0014] The θ1 direction and the θ2 direction are perpendicular to each other. In the example shown in Fig. 3, the aerial imaging plate 20 includes a plurality of mirror plates 21 arranged in the θ1 direction and a plurality of mirror plates 22 arranged in the θ2 direction. In addition, in the example shown in Fig. 3, a plurality of mirror plates 22 are arranged on top of the plurality of mirror plates 21. In other words, in the thickness direction of the aerial imaging plate 20 (the Z direction shown in Fig. 1), the plurality of mirror plates 21 are arranged closer to the light source 10 than the plurality of mirror plates 22.

[0015] As shown in FIG. 1, light source light L1 emitted from a light-emitting unit 11 of a light source 10 is irradiated onto an aerial imaging plate 20. Most of the light source light L1 is reflected once by each of mirror plates 21 and 22 (shown in FIG. 3) in the aerial imaging plate 20 and emitted upward from the aerial imaging plate 20 as reflected light L2 (shown in FIG. 1). The reflected light L2 then forms an image 101 in the air. An observer 100 can visually recognize the image 101 formed in the air. The image 101, which is an aerial image, is an image displayed on the light source 10 and is perceived as floating in a position symmetrical to the light source 10 with the aerial imaging plate 20 as the axis of symmetry. For example, in the example shown in FIG. 1, the light source 10 is disposed along the Z direction perpendicular to the XY plane, and therefore the image 101 is similarly perceived as a planar image along the Z direction perpendicular to the XY plane. Similarly, an image 102, which will be described later, is viewed as a planar image along the Z direction perpendicular to the XY plane. On the other hand, as shown in Fig. 9, which will be described later, when the light source 10 is arranged along the XY plane, the image 101 is viewed as a planar image along the XY plane.

[0016] <About the Ghost Statue> According to the study of the present inventors, in the case of the display device DSP1 shown in FIGS. 1 to 3, it has been found that the observer 100 views an image 102 in addition to the image 101, as shown schematically by the dotted line in FIG. 1. The image 102 is formed at a position different from that of the image 101. The image 102 is an image that is not intended to be viewed by the observer 100. Hereinafter, an image that is not intended to be viewed by the observer 100, such as the image 102, in other words, an image that is preferably not viewed by the observer 100 from the viewpoint of display quality, will be referred to as a ghost image.

[0017] The image 102, which is a ghost image, is formed by the light source light L1 being reflected only once by the aerial imaging plate 20. As described above, the image 101 is an image obtained by the light source light L1 being reflected twice by the aerial imaging plate 20.

[0018] However, because the light source light L1 propagates radially from the light-emitting unit 11, a portion of the light source light L1 is reflected by only one of the mirror plates 21 and 22 shown in Fig. 3. More specifically, as shown schematically in Fig. 3, a component L3 of the light source light L1 that propagates parallel to the θ1 direction in a plan view is reflected by the mirror plate 21 but is not reflected by the mirror plate 22. Similarly, a component L4 that propagates parallel to the θ2 direction is reflected by the mirror plate 22 but is not reflected by the mirror plate 21.

[0019] Component L3 and component L4 are each imaged in the air at a position different from image 101 shown in FIG. 1, and are visually recognized by observer 100 as image 102, which is a ghost image. In the layout shown in FIG. 3, image 102 is formed at two locations on the opposite side (back side) of light source 10 via aerial imaging plate 20 in a plan view. Note that light source light L1 may contain components that are not irradiated onto aerial imaging plate 20, in other words, that are not reflected even once by aerial imaging plate 20. However, components that are not irradiated onto aerial imaging plate 20 are not imaged in the air. Therefore, with regard to ghost images, components that are not irradiated onto aerial imaging plate 20 can be ignored.

[0020] <Display device capable of suppressing ghost image formation> Next, a display device capable of suppressing the formation of image 102 shown in FIGS. 1 and 3 will be described. FIG. 4 is a plan view showing an example of the configuration of a display device according to this embodiment. FIG. 4 corresponds to the plane shown in FIG. 3. FIG. 5 is a side view of the display device shown in FIG. 4. As with FIG. 1, FIG. 5 schematically illustrates the traveling directions of light source light L1 emitted from light source 10 and reflected light L2 reflected by aerial imaging plate 20. FIG. 6 is a plan view of the light source and multiple light-blocking members shown in FIG. 5 when viewed so that the light-blocking surfaces are seen from the front. FIG. 7 is an enlarged plan view showing the positional relationship between the light-emitting unit shown in FIG. 4 and two light-blocking members located nearby.

[0021] The display device DSP2 of this embodiment is similar to the display device DSP1 described using Figures 1 to 3, except that it has a light-blocking member 30 arranged between the aerial imaging plate 20 and the light source 10.

[0022] More specifically, the display device DSP2 has a light source 10 equipped with a plurality of light-emitting units 11, an aerial imaging plate 20, and a light-shielding member 30. The structure of the light source 10 is as described with reference to Fig. 2. The structure of the aerial imaging plate 20 is as described with reference to Fig. 3.

[0023] As described above, the light blocking member 30 is disposed between the aerial imaging plate 20 and the light source 10. The light blocking member 30 can block a portion of the light source light L1 emitted from the light source 10. In detail, the light blocking member 30 can selectively block light (component L3 and component L4) that travels parallel to the θ1 direction or the θ2 direction in plan view from the light source light L1 emitted from the light source 10.

[0024] In the present embodiment, light (components L3 and L4 of light source light L1) that causes image 102, which is a ghost image described with reference to Fig. 1, to be formed is blocked by light blocking member 30. Therefore, in the case of display device DSP2, it is possible to prevent image 102 shown in Figs. 1 and 3 from being formed.

[0025] Furthermore, as described above, the light source light L1 may contain a component that is not irradiated onto the aerial imaging plate 20. However, since the component that is not irradiated onto the aerial imaging plate 20 can be ignored, there is no problem even if this component is shielded by the light shielding member 30, and there is no problem even if this component is not shielded by the light shielding member 30.

[0026] As shown in FIG. 5, the light source 10 has a light irradiation surface 10f on which a plurality of light-emitting units 11 are arranged in an array. The light irradiation surface refers to a surface on which a plurality of light-emitting units 11, specifically, the origins from which the light source light L1 is emitted, are arranged. For example, if the light source 10 is a liquid crystal display device or a micro LED display device, the light irradiation surface 10f is the front surface of the substrate on the light irradiation surface side of the display device. The light source 10 is disposed so that the light irradiation surface 10f faces in any direction within a plane including the θ1 direction and the θ2 direction shown in FIG. 4 (in other words, an XY plane including the X direction and the Y direction). In the example shown in FIG. 5, the light irradiation surface 10f faces in the Y direction. In other words, the light source 10 is disposed so that the angle formed by the light irradiation surface 10f and a plane including the θ1 direction (see FIG. 4) and the θ2 direction (see FIG. 4) (the XY plane shown in FIG. 4) is 90 degrees.

[0027] In addition, in the plan view shown in Fig. 4, the θ1 direction and the θ2 direction do not coincide with the Y direction, which is the normal direction of the light irradiation surface 10f. In other words, the light source 10 is disposed so that the light irradiation surface 10f faces in a direction that intersects with both the θ1 direction and the θ2 direction. In the example shown in Fig. 4, the angle formed between the Y direction and the θ1 direction and the angle formed between the Y direction and the θ2 direction are both 45 degrees.

[0028] As described above, the light blocking member 30 can selectively block light (components L3 and L4) that travels parallel to the θ1 direction or the θ2 direction in plan view, out of the source light L1 emitted from the light source 10. Therefore, part of the source light L1 that does not affect the formation of the image 102 (see FIG. 3), in other words, light that travels in a direction that is reflected twice by the aerial imaging plate 20, is less likely to be blocked by the light blocking member 30 and is irradiated toward the aerial imaging plate 20. Therefore, the display device DSP2 can form an image 101 in the air, similar to the display device DSP1 shown in FIG. 1.

[0029] It should be noted that the light blocking member 30 does not block only the components L3 and L4 of the light source light L1, but may block components other than the components L3 and L4. From the viewpoint of reliably preventing the formation of ghost images, it is preferable to be able to reliably block the light of the components L3 and L4, and therefore it is preferable that each of the multiple light blocking members 30 is large in size.

[0030] However, if the size of the light blocking member 30 increases, the amount of the component of the source light L1 that is blocked by the light blocking member 30 increases. Therefore, from the viewpoint of improving the brightness of the image 101 shown in FIG. 1, it is preferable that the size of the light blocking member 30 be the minimum necessary.

[0031] In the layout shown in Fig. 4, it is preferable that each of the multiple light-blocking members 30 has the following structure or layout. That is, as shown in Fig. 6, each of the multiple light-blocking members 30 extends along the light irradiation surface 10f. Furthermore, in the arrangement of the multiple light-emitting units 11 shown in Fig. 6, if the direction along the X direction is the row direction and the direction along the Z direction is the column direction, each of the multiple light-blocking members 30 is disposed between adjacent light-emitting units 11 in the row direction. In this case, of the light source light L1 emitted from each of the multiple light-emitting units 11, light corresponding to the component L3 and the component L4 shown in Fig. 4 can be blocked in the vicinity of the light source 10.

[0032] As shown in FIG. 6, when the light irradiation surface 10f is viewed from the front, a portion of the light blocking member 30 protrudes outside the light irradiation surface 10f toward the aerial imaging plate 20 (see FIG. 5). In the example shown in FIG. 6, a portion of each of the multiple light blocking members 30 protrudes outside the light irradiation surface 10f. In the side view shown in FIG. 5, the light source light L1 emitted from the light emitter 11 may contain a component that forms an acute angle (e.g., 45 degrees or less) with the light irradiation surface 10f. When a portion of the light blocking member 30 protrudes toward the aerial imaging plate 20, it can block the light component that forms an acute angle with the light irradiation surface 10f. Therefore, of the light source light L1 emitted from each of the multiple light emitters 11, light corresponding to the components L3 and L4 shown in FIG. 4 can be reliably blocked even at positions distant from the light source 10 by being in addition to the vicinity of the light source 10.

[0033] 4 and 5, in this embodiment, the light-shielding member 30 is spaced apart from the light-irradiated surface 10f. In the example shown in Fig. 4, each of the plurality of light-shielding members 30 is spaced apart from the light-irradiated surface 10f. In other words, a space is present between the plurality of light-shielding members 30 and the light-emitting unit 11.

[0034] 7, when the light-shielding member 30 and the light-emitting unit 11 are spaced apart, part of the source light L1 can travel through the gap between the light-shielding member 30 and the light-emitting unit 11. That is, in the case of the present embodiment, the source light L1 includes components L3 and L4 that are blocked by one of the plurality of light-shielding members 30, as well as component L5 that passes between adjacent light-shielding members 30. In addition to components L3 and L4, the source light L1 also includes component L6 that passes between the light-shielding member 30 and the light-emitting unit 11.

[0035] When the light-shielding member 30 is in contact with the light irradiation surface 10f, the component L6 is blocked by the light-shielding member 30. In the present embodiment, the component L6 of the light source light L1 is not blocked by the light-shielding member 30, and therefore the brightness of the image 101 shown in Fig. 5 can be improved compared to when the component L6 is blocked.

[0036] However, as a modified example of this embodiment, there is a case where a plurality of light blocking members 30 and the light irradiation surface 10f are in contact with each other. Details will be described later as a modified example, but in this case, the light source 10 and the light blocking members 30 can be fixed, which has the advantage of improving the accuracy of the positional relationship between the light emitting unit 11 and the light blocking members 30.

[0037] When the plurality of light-shielding members 30 are spaced apart from the light irradiation surface 10f as in the present embodiment, it is preferable to control with high precision the positional relationship between the plurality of light-shielding members 30 and the plurality of light-emitting units 11. By improving the precision of the positional relationship between the plurality of light-shielding members 30 and the plurality of light-emitting units 11, the size of the light-shielding members 30 can be minimized.

[0038] For example, when each of the plurality of light-blocking members 30 is held by a holding member 32 shown in Fig. 5, it is preferable that the holding member 32 is fixed to the support member 13 that supports the light source unit 10. In the example shown in Fig. 5, the holding member 32 and the support member 13 are fixed via an adhesive 14. In this case, it is possible to improve the accuracy of the positional relationship between each of the plurality of light-blocking members 30 and the plurality of light-emitting units 11 shown in Fig. 8.

[0039] <Modification of light source layout> Next, a modified example of the display device DSP2 described with reference to Figs. 4 to 7 will be described. Fig. 8 is a plan view showing a configuration example of a display device that is a modified example of Fig. 4. Fig. 9 is a side view of the display device shown in Fig. 8. As with Fig. 5, Fig. 8 schematically illustrates the traveling directions of light source light L1 emitted from light source 10 and reflected light L2 reflected by aerial imaging plate 20. Fig. 10 is a plan view of the light source and multiple light blocking members shown in Fig. 9 when viewed so that the light blocking surfaces appear to be facing forward.

[0040] The display device DSP3 shown in Figures 8 and 9 differs from the display device DSP2 shown in Figures 4 and 5 in the layout of the light source 10. That is, as shown in Figures 8 and 9, the light source 10 of the display device DSP3 is arranged so that the angle formed between the light irradiation surface 10f and the plane including the θ1 direction and the θ2 direction (XY plane) is less than 90 degrees. In the example shown in Figures 8 and 9, the angle formed between the light irradiation surface 10f and the XY plane is 0 degrees. In other words, the light irradiation surface 10f and the XY plane are parallel to each other.

[0041] In the case of the display device DSP3, it is necessary to consider the component of the light source light L1 that travels directly above the light emitting unit 11. That is, when the point light source of the light emitting unit 11 is located at the center of a grid formed by a plurality of mirror plates 21 and a plurality of mirror plates 22, the component of the light source light L1 that travels directly above the light emitting unit 11 may travel onto the aerial imaging plate 20 without being reflected by the mirror plates 21 and 22.

[0042] In this way, from the viewpoint of preventing the generation of components of the light source light L1 that are not reflected by the mirror plates 21 and 22 and proceed onto the aerial imaging plate 20, it is preferable that each of the multiple light-emitting units 11 is positioned so as not to overlap with the aerial imaging plate 20 in a planar view, as shown in Figure 8.

[0043] 4 and 5 in that the display device DSP3 according to the modified example includes light-shielding members 31 shown in FIGS. 8 to 10 instead of the light-shielding members 30 shown in FIGS. 4 to 7. The light-shielding members 31 are provided corresponding to the plurality of light-emitting units 11. In other words, the light-shielding members 31 are arranged on the light irradiation surface 10f between the plurality of light-emitting units 11 and the aerial imaging plate 20, with the light-shielding members 31 spaced apart from each other.

[0044] 8, in plan view, one light-shielding member 31 is disposed at a position located in the θ1 direction from the center of one light-emitting section 11. In addition, in plan view, one light-shielding member 31 is disposed at a position located in the θ2 direction from the center of one light-emitting section 11.

[0045] 9, the light-shielding member 31 is in contact with the light-irradiated surface 10f. In the side view shown in FIG. 9, there are various angles formed between the light-irradiated surface 10f and each of the components L3 and L4 of the light source light L1. Therefore, by bringing the light-shielding member 31 into contact with the light-irradiated surface 10f, it is possible to block the components L3 and L4 of the light source light L1 even when the angles formed between the light-irradiated surface 10f and each of the components L3 and L4 are small.

[0046] 9, each of the plurality of light-shielding members 31 is arranged to protrude in an out-of-plane direction (for example, a normal direction) of the light irradiation surface 10f. In this case, even if the angle formed between each of the components L3 and L4 of the light source light L1 and the light irradiation surface 10f is close to 90 degrees, these components can be blocked.

[0047] When the light blocking member 31 is in contact with the light irradiation surface 10f as in this modification, the light blocking member 31 can be formed on the light irradiation surface 10f, for example. In this case, each of the multiple light blocking members 31 is fixed to the light source 10, so that the positional accuracy of the multiple light blocking members 31 can be improved.

[0048] Except for the above-mentioned differences, the display device DSP3 described with reference to Figures 8 to 10 is similar to the display device DSP2 described with reference to Figures 4 to 7. Therefore, a duplicated description will be omitted.

[0049] Although the embodiment and representative modifications have been described above, the above-described technology can be applied to various modifications other than the modifications exemplified. For example, the above-described modifications may be combined with each other.

[0050] Within the scope of the concept of the present invention, a person skilled in the art may conceive of various modifications and alterations, and it is understood that these modifications and alterations also fall within the scope of the present invention. For example, to the above-described embodiments, a person skilled in the art may appropriately add, delete, or modify components, or add, omit, or change conditions of steps, and these modifications are also included within the scope of the present invention as long as they maintain the gist of the present invention. [Explanation of symbols]

[0051] 10 light source 10f light irradiation surface 11 Light-emitting part 12 PCB 13 Support member 14 Adhesive 20 Aerial imaging plate 21,22 Mirror plate 21m1,21m2,22m1,22m2 Reflective surface 30, 31 Light blocking member 32 Retaining member 100 Observer 101 statue 102 statue DSP1,DSP2,DSP3 Display device L1 light source light L2 reflected light L3,L4,L5,L6 components

Claims

1. a light source having a plurality of light-emitting units; an aerial imaging plate including a plurality of mirror plates and capable of forming an image in the air by reflecting light emitted from the light source; a light blocking member disposed between the aerial imaging plate and the light source, the light blocking member blocking a portion of the light emitted from the light source; and The plurality of mirror plates include: a first mirror plate having a first reflecting surface facing a first direction and a second reflecting surface facing a direction opposite to the first direction; a second mirror plate including a third reflecting surface facing a second direction perpendicular to the first direction and a fourth reflecting surface facing a direction opposite to the third reflecting surface; Including, the second mirror plate is disposed so as to partially overlap the first mirror plate in a third direction perpendicular to the first direction and the second direction, and is located closer to the light source than the first mirror plate; The display device, wherein the light blocking member is capable of selectively blocking light, of the light emitted from the light source, that travels parallel to the first direction or the second direction in a plan view.

2. In claim 1, the light source has a light irradiation surface on which the plurality of light emitting units are arranged in an array, The display device, wherein the light source is arranged so that the light irradiation surface faces in any direction within a plane including the first direction and the second direction.

3. In claim 2, The light blocking member extends in the third direction along the light irradiation surface.

4. In claim 3, the plurality of light-emitting units are arranged in a column direction along the third direction and in a row direction perpendicular to the column direction, The display device, wherein the light blocking member is disposed between light emitting sections adjacent to each other in the row direction.

5. In claim 4, When the light irradiation surface is viewed from the front, a portion of the light blocking member protrudes outside the light irradiation surface toward the aerial imaging plate.

6. In claim 2, The display device, wherein the light source is arranged so that the light irradiation surface faces a direction intersecting with both the first direction and the second direction.

7. In claim 1, the light source has a light irradiation surface on which the plurality of light emitting units are arranged in an array, The display device, wherein the light blocking member is spaced apart from the light irradiation surface.

8. In claim 1, the light source has a light irradiation surface on which the plurality of light emitting units are arranged in an array, The display device, wherein the light source is arranged so that an angle formed between the light irradiation surface and a plane including the first direction and the second direction is equal to or greater than 0 degrees and less than 90 degrees.

9. In claim 8, The display device, wherein the light blocking members are arranged on the light irradiation surface between the plurality of light emitting units and the aerial imaging plate, the light blocking members being spaced apart from each other.

10. In claim 1, the light source has a light irradiation surface on which the plurality of light emitting units are arranged in an array, The display device, wherein the light blocking member is in contact with the light irradiation surface.

Images