A virtual and real image combined display device

Abstract

The present invention discloses a virtual-real image combined display device, comprising a semi-transparent semi-reflective mirror, the semi-transparent semi-reflective mirror is used to combine a virtual image with a real image for display; a display, each display surface of the display is arranged to face the semi-transparent semi-reflective mirror, the display is used to provide a virtual image; a dimming glass, the dimming glass is arranged on the side that provides a real image to the semi-transparent semi-reflective mirror, the dimming glass is used to adjust the real image. The present invention can realize the combination of virtual and real images with a semi-transparent semi-reflective mirror with a low longitudinal depth in a strong light environment, thereby improving the versatility and feasibility of the display device.

Description

Technical Field

[0001] The present invention relates to the field of display screens, and more particularly to a virtual and real image combined display device. Background Art

[0002] The current virtual-real image combined display technology has been widely used in exhibitions and stage performances, such as pyramid-shaped virtual-real image combined display cabinets, virtual actor performance virtual-real image combined stage display technology, etc. However, the virtual-real image combined display technology in the prior art cannot be used in strong light environments such as sunlight, and the semi-transparent and semi-reflective mirrors occupy a large longitudinal depth, which is difficult to implement in actual projects.

[0003] There is currently no effective solution to the problems of low versatility and poor feasibility in existing technologies. Summary of the invention

[0004] In view of this, an object of an embodiment of the present invention is to provide a virtual and real image combined display device, which can realize virtual and real image combination with low vertical depth in a strong light environment, thereby improving the versatility and feasibility of the display device.

[0005] Based on the above purpose, an embodiment of the present invention provides a virtual and real image combined display device, including:

[0006] Angle-shaped semi-transparent and semi-reflective mirror, wherein the semi-transparent and semi-reflective mirror has multiple sides at angles to each other, and is used to combine virtual images and real images for display;

[0007] The display surface of each display is arranged to face the semi-transparent and semi-reflective mirror, and the display is used to provide a virtual image.

[0008] In some embodiments, the display device also includes a dimming glass, which is arranged on the side that provides a real image to the semi-transparent and semi-reflective mirror, and the dimming glass is used to adjust the real image; the display and the dimming glass are arranged relative to the semi-transparent and semi-reflective mirror so that the propagation direction of the light of the virtual image after being reflected by the semi-transparent and semi-reflective mirror is parallel to the propagation direction of the light of the real image after being transmitted by the semi-transparent and semi-reflective mirror to form a combined virtual and real image.

[0009] In some embodiments, the display includes two display units: a first display unit and a second display unit; the semi-transparent and semi-reflective mirror has a folding angle, and the first display unit and the second display unit are respectively arranged on both sides outside the folding angle of the semi-transparent and semi-reflective mirror; the semi-transparent and semi-reflective mirror is arranged with the folding angle away from the providing direction of the real image, and the dimming glass is arranged on the side of the semi-transparent and semi-reflective mirror away from the folding angle and completely blocks the projection of the semi-transparent and semi-reflective mirror in the providing direction of the real image, so that all real images projected onto the semi-transparent and semi-reflective mirror are completely transmitted through the dimming glass.

[0010] In some embodiments, the first display unit and the second display unit are parallel to each other, and the folding angle of the semi-transparent and semi-reflective mirror is a right angle.

[0011] In some embodiments, the first display unit and the second display unit are not parallel, and the folding angle of the semi-transparent and semi-reflective mirror is an acute angle or an obtuse angle.

[0012] In some embodiments, the first display unit and the second display unit are equal in size, and the folding angle of the semi-transparent and semi-reflective mirror divides the semi-transparent and semi-reflective mirror into two equal parts.

[0013] In some embodiments, the first display unit and the second display unit are of unequal sizes, the folding angle of the semi-transparent and semi-reflective mirror divides the semi-transparent and semi-reflective mirror into two parts of unequal sizes, and the size ratio of the first display unit and the second display unit is equal to or correlated with the size ratio of the two parts of the semi-transparent and semi-reflective mirror of unequal sizes.

[0014] In some embodiments, each of the displays is a stereoscopic display that is one of the following: a time-division stereoscopic display, a polarization stereoscopic display, a grating stereoscopic display.

[0015] In some embodiments, the switchable glass can adjust the light intensity of the real image by adjusting its light transmittance, so that the light intensities of the virtual image and the real image match each other.

[0016] In some embodiments, the observer is located in the light emitting direction of the semi-transparent and semi-reflective mirror.

[0017] The present invention has the following beneficial technical effects:

[0018] 1. The transportation vehicle for combined display of virtual and real images of the present invention adopts a virtual scene display device that allows light to pass through in one direction, which can map a complete picture from top to bottom and left to right, realize a seamless combination of real and virtual scenes, and can be viewed by multiple people at the same time.

[0019] 2. The use of an angled semi-transparent and semi-reflective mirror further shortens the reflection distance. Compared with a non-angled semi-transparent and semi-reflective mirror, on the one hand, the thickness of the semi-transparent and semi-reflective mirror is reduced to 1 / 4 to 1 / 2; on the other hand, the area of ​​the upper and lower or left and right stereoscopic displays is reduced to 1 / 4 to 1 / 2, so that the thickness D of the entire virtual scene display device is greatly reduced.

[0020] 3. Set up dimming glass. When the dimming glass is set to a completely opaque state, the display effect is separated from the real scene and becomes a three-dimensional effect of a pure virtual scene; when the dimming glass is in a transparent state, a visual effect combining virtual and real is displayed; by dimming according to the intensity of external light, the viewing effect of the audience is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A three-dimensional schematic diagram of an embodiment of a virtual-real image combined display device provided by the present invention;

[0023] Figure 2 A side view schematic diagram of an embodiment of a virtual and real image combined display device provided by the present invention;

[0024] Figure 3 A side view schematic diagram of another embodiment of the virtual and real image combined display device provided by the present invention;

[0025] Figure 4 A side view schematic diagram of another embodiment of the virtual and real image combined display device provided by the present invention. DETAILED DESCRIPTION

[0026] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0027] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0028] Based on the above purpose, the embodiment of the present invention provides a virtual and real image combined display device. The virtual and real image combined display device includes a semi-transparent and semi-reflective mirror 3 and a display.

[0029] The semi-transparent mirror 3 has a plurality of side surfaces at angles to each other, and the semi-transparent mirror is used to combine a virtual image with a real image for display; the display surface of each display is arranged to face the semi-transparent mirror 3, and the display is used to provide a virtual image. The display device also includes a dimming glass 4, which is arranged on the side that provides a real image to the semi-transparent mirror 3, and the dimming glass 4 is used to adjust the real image. The display and the dimming glass 4 are arranged relative to the semi-transparent mirror 3, so that the propagation direction of the light of the virtual image after being reflected by the semi-transparent mirror is parallel to the propagation direction of the light of the real image after being transmitted by the semi-transparent mirror 3 to form a combined virtual and real image.

[0030] Should be combined Figure 2According to the light path shown in the figure, the significance of the semi-transparent and semi-reflective mirror 3 is to reflect or transmit the incident light of the virtual image (A light, B light) and the real image (C light) in different directions to the same direction, thereby forming a combination of virtual and real images that can be sensed by the naked eye. Therefore, for the combination of the semi-transparent and semi-reflective mirror 3, the display, and the dimming glass 4 arranged in any form, whether it is shown in the form of the preferred embodiment described below, as long as the technical features used in the present invention can be used to achieve the effect of making the light of the virtual image and the real image parallel in the same direction without obviously violating the design intent of the present invention (applicable to strong light environment and / or reducing the longitudinal depth), it has been disclosed by the present invention and falls within the protection scope of the present invention.

[0031] Figure 1 FIG. 2 is a three-dimensional schematic diagram of an embodiment of a virtual-real image combined display device provided by the present invention. Figure 1 As shown, the display includes two display units: a first display unit 1 and a second display unit 2; the semi-transparent and semi-reflective mirror 3 has a folded angle, and the first display unit 1 and the second display unit 2 are respectively arranged on both sides outside the folded angle of the semi-transparent and semi-reflective mirror 3; the semi-transparent and semi-reflective mirror 3 is arranged with the folded angle away from the providing direction of the real image, and the dimming glass 4 is arranged on the side of the semi-transparent and semi-reflective mirror 3 away from the folded angle and completely blocks the projection of the semi-transparent and semi-reflective mirror 3 in the providing direction of the real image, so that all real images projected onto the semi-transparent and semi-reflective mirror 3 are completely transmitted through the dimming glass 4.

[0032] The preferred embodiment of the previous paragraph defines the display as having two display units, but it should be understood that the present invention also discloses embodiments having more display units. For example, the semi-transparent and semi-reflective mirror 3 is set as a tetrahedron without a bottom surface, that is, there are three side surfaces, and three display units can be set corresponding to each side surface, so that the incident light of the virtual image of the three display units is parallel to the transmitted light of the real image after reflection to achieve the effect of combining virtual and real; by increasing the side surfaces of the semi-transparent and semi-reflective mirror 3 and adjusting the angle, four or more display units can also use this method to construct corresponding available semi-transparent and semi-reflective mirrors 3. In addition, considering the shape of the display unit and the material of the semi-transparent and semi-reflective mirror 3, the polygonal cone of the semi-transparent and semi-reflective mirror 3 can also be cut into a polygonal table.

[0033] In addition, although the folding angle is disclosed, the semi-transparent and semi-reflective mirror 3 can form the folding angle in a variety of ways, such as forming a physical folding angle by bending a single semi-transparent and semi-reflective mirror 3, or forming a logical folding angle by splicing multiple semi-transparent and semi-reflective mirrors 3. Considering the number of display units, it is obvious that the latter embodiment is more preferred when the number of display units is larger.

[0034] In some embodiments, the first display unit 1 and the second display unit 2 are parallel to each other, and the folding angle of the semi-transparent and semi-reflective mirror 3 is a right angle. In some embodiments, the first display unit 1 and the second display unit 2 are not parallel, and the folding angle of the semi-transparent and semi-reflective mirror 3 is an acute angle or an obtuse angle. In some embodiments, the first display unit 1 and the second display unit 2 are equal in size, and the folding angle of the semi-transparent and semi-reflective mirror 3 divides the semi-transparent and semi-reflective mirror 3 into two equal parts. In some embodiments, the first display unit 1 and the second display unit 2 are unequal in size, and the folding angle of the semi-transparent and semi-reflective mirror 3 divides the semi-transparent and semi-reflective mirror 3 into two parts of unequal sizes, and wherein the size ratio of the first display unit 1 and the second display unit 2 is equal to or correlated with the size ratio of the two unequal parts of the semi-transparent and semi-reflective mirror 3.

[0035] The preferred implementation of the previous paragraph can be found in Figure 2 , 3 , 4. For ease of understanding, we stipulate that the first display unit 1 is above the semi-transparent and semi-reflective mirror 3, and the second display unit 2 is below the semi-transparent and semi-reflective mirror 3. Figure 2 In the embodiment, the first display unit 1 and the second display unit 2 are parallel to each other, the folding angle of the semi-transparent and semi-reflective mirror 3 is a right angle, the first display unit 1 and the second display unit 2 are equal in size, and the folding angle of the semi-transparent and semi-reflective mirror 3 divides the semi-transparent and semi-reflective mirror 3 into two equal parts; Figure 3 In the embodiment, the first display unit 1 and the second display unit 2 are not parallel, the folding angle of the semi-transparent and semi-reflective mirror 3 is an obtuse angle, the first display unit 1 and the second display unit 2 are equal in size, and the folding angle of the semi-transparent and semi-reflective mirror 3 divides the semi-transparent and semi-reflective mirror 3 into two equal parts; Figure 4 In the embodiment, the first display unit 1 and the second display unit 2 are parallel to each other, the folding angle of the semi-transparent and semi-reflective mirror 3 is a right angle, the first display unit 1 and the second display unit 2 are of unequal sizes, and the folding angle of the semi-transparent and semi-reflective mirror 3 divides the semi-transparent and semi-reflective mirror 3 into two parts of unequal sizes.

[0036] Specifically, Figure 2 The first display unit 1 and the second display unit 2 of the embodiment are parallel to each other and parallel to the optical axis of the external incident light C; the mirror surfaces of the semi-transparent and semi-reflective mirrors 3 are folded and respectively form right angles with the first display unit 1 and the second display unit 2, so that the two reflected images are combined into an integrated picture and are perpendicular to the ground; the light A emitted by the first display unit 1, after being reflected by the semi-transparent and semi-reflective mirrors 3, the optical axis of the light A is parallel to the optical axis of the external incident light C; the light B emitted by the second display unit 2, after being reflected by the semi-transparent and semi-reflective mirrors 3, the optical axis of the light B is parallel to the optical axis of the external incident light C. Thus, people can see the light A, light B and light C at the same time, that is, the virtual scene A and the virtual scene B are superimposed on the real scene C.

[0037] Specifically, Figure 3The angle between the two mirror surfaces of the semi-transparent and semi-reflective mirror 3 of the embodiment is an obtuse angle, the first display unit 1 and the second display unit 2 are not parallel, the light A emitted by the first display unit 1, after being reflected by the semi-transparent and semi-reflective mirror 3, the optical axis of the light A is parallel to the optical axis of the external incident light C, and the light B emitted by the second display unit 2, after being reflected by the semi-transparent and semi-reflective mirror 3, the optical axis of the light B is parallel to the optical axis of the external incident light C. It can be imagined that in this embodiment, the longitudinal depth of the semi-transparent and semi-reflective mirror 3 is further reduced, that is, the technical effect of the present invention is better achieved.

[0038] Specifically, Figure 4 The two mirror surfaces of the semi-transparent and semi-reflective mirror 3 of the embodiment are not symmetrical, and the sizes of the first display unit 1 and the second display unit 2 are also different. This embodiment is suitable for embodiments in which multiple display units of different sizes exist at the same time. When it is inconvenient to adjust the virtual image output by the display unit, the angle and position of the semi-transparent and semi-reflective mirror 3 can be adjusted to achieve the same visual effect.

[0039] It should be understood that in the above-mentioned embodiments, the angle formed by the first display unit 1 and the second display unit 2, the folding angle with the semi-transparent and semi-reflective mirror 3, and the relationship between the size ratio of the first display unit 1 and the second display unit 2 and the size ratio of the two parts of the semi-transparent and semi-reflective mirror 3 of unequal sizes are all values ​​that can be obtained by engineering and technical personnel in this field through simple geometric calculations, and there is no value and necessity to be specifically listed in the embodiments of the present invention.

[0040] In some embodiments, the display is a flat display or a stereoscopic display. Each of the stereoscopic displays is one of the following stereoscopic displays: a time-division stereoscopic display, a polarization stereoscopic display, a grating stereoscopic display, and a stereoscopic projector. The virtual images A and B seen by people are spatial stereoscopic images that can be better integrated with the real image C.

[0041] In some embodiments, the dimming glass 4 can adjust the light intensity of the real image by adjusting its transmittance, so that the light intensities of the virtual image and the real image match each other. For example, when the external light is strong, the transmittance of the dimming glass is reduced, and when the external light is weak, the transmittance of the dimming glass is increased. In some embodiments, the observer is located in the light emitting direction of the semi-transparent and semi-reflective mirror 3.

[0042] It can be seen from the above embodiments that the virtual and real image combined display device provided by the embodiments of the present invention uses a display to provide a virtual image on the semi-transparent and semi-reflective mirror 3, uses a dimming glass 4 to adjust the real image provided to the semi-transparent and semi-reflective mirror 3, and displays the virtual and real images in combination. This technical solution can achieve the combination of virtual and real images at a low vertical depth in a strong light environment, thereby improving the versatility and feasibility of the display device.

[0043] It should be pointed out in particular that the various modules in the various embodiments of the above-mentioned virtual and real image combined display device can be cross-linked, replaced, added, and deleted. Therefore, these reasonable arrangements and combinations should also fall within the scope of protection of the present invention, and the scope of protection of the present invention should not be limited to the embodiments.

[0044] The above is an exemplary embodiment disclosed by the present invention, but it should be noted that, without departing from the scope disclosed by the embodiments of the present invention as defined in the claims, various changes and modifications may be made. In addition, although the elements disclosed by the embodiments of the present invention may be described or required in individual form, they may also be understood as multiple unless explicitly limited to the singular.

[0045] It should be understood that, as used herein, the singular forms "a", "an" are intended to include the plural forms as well, unless the context clearly supports an exception. It should also be understood that, as used herein, "and / or" refers to any and all possible combinations including one or more of the associated listed items.

[0046] The serial numbers of the embodiments disclosed in the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0047] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the concept of the embodiments of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the embodiments of the present invention as described above, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A virtual and real image combined display device, characterized in that: include: A semi-transparent and semi-reflective mirror, wherein the semi-transparent and semi-reflective mirror has two sides which are angled with each other, and is used to combine a virtual image and a real image for display, and the semi-transparent and semi-reflective mirror has a folded angle; A display, the display comprising two display units: a first display unit and a second display unit; the first display unit and the second display unit are arranged to face one side of the semi-transparent and semi-reflective mirror respectively, and the display is used to provide the virtual image; It also includes a dimming glass, which is arranged on the side of the semi-transparent and semi-reflective mirror that provides the real image, and the dimming glass is used to adjust the real image; the display and the dimming glass are arranged relative to the semi-transparent and semi-reflective mirror, so that the propagation direction of the light of the virtual image after being reflected by the semi-transparent and semi-reflective mirror is parallel to the propagation direction of the light of the real image after being transmitted by the semi-transparent and semi-reflective mirror to form a combined virtual and real image; The semi-transparent and semi-reflective mirror is arranged with the folding angle away from the providing direction of the real image, and the dimming glass is arranged on the side of the semi-transparent and semi-reflective mirror away from the folding angle and completely blocks the projection of the semi-transparent and semi-reflective mirror in the providing direction of the real image, so that all the real images projected onto the semi-transparent and semi-reflective mirror are fully transmitted through the dimming glass; The dimming glass can adjust the light intensity of the real image by adjusting its light transmittance, so that the light intensities of the virtual image and the real image match each other; Each of the displays is a stereoscopic display of one of the following: a time-division stereoscopic display, a polarization stereoscopic display, a grating stereoscopic display.

2. The device according to claim 1, characterized in that The first display unit and the second display unit are parallel to each other, and the folding angle of the semi-transparent and semi-reflective mirror is a right angle.

3. The device according to claim 1, characterized in that The first display unit and the second display unit are not parallel, and the folding angle of the semi-transparent and semi-reflective mirror is an acute angle or an obtuse angle.

4. The device according to claim 1, characterized in that The first display unit and the second display unit are of equal size, and the folded angle of the semi-transparent and semi-reflective mirror divides the semi-transparent and semi-reflective mirror into two equal parts.

5. The device according to claim 1, characterized in that The sizes of the first display unit and the second display unit are not equal, the folding angle of the semi-transparent and semi-reflective mirror divides the semi-transparent and semi-reflective mirror into two parts of unequal sizes, and the size ratio of the first display unit and the second display unit is equal to or correlated with the size ratio of the two parts of the semi-transparent and semi-reflective mirror of unequal sizes.

6. The device according to any one of claims 1 to 5, characterized in that The observer is located in the light emitting direction of the semi-transparent and semi-reflective mirror.

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