JP7208378B2 - Display device and moving body - Google Patents

Description

The present disclosure relates to a display device and a moving object that display an aerial image.

A technology has been proposed in which two or more layers of aerial images are superimposed and projected in a space so that the user perceives the image as a three-dimensional image (see, for example, Patent Document 1).

In the conventional technology, only two aerial images displayed on the display screen of the smartphone are superimposed in the user's field of view using a half mirror. There is room for improvement in the technique of superimposing an aerial image on a background such as an external scenery and allowing the user to view the image as a three-dimensional image.

Yoshimune Makiguchi, Arinobu Niijima, Hideaki Takada, Tatsuya Matsui, Yasuyuki Yabumoto, Masanori Yokoyama, "Proposal of a compact multi-layer spatial image projection device that can be used with smartphones", Information Processing Society of Japan Interaction 2016, pp. 150-157 (2016)

A display device of the present disclosure includes a first optical member having a first surface, a second optical member having a second surface, a first display, and a second display. The first display is located on a first side of the first surface and is configured to display a first image. The second display is located on a second side of the first surface opposite the first side and is configured to display a second image. The first optical member is configured to at least partially transmit the first image and at least partially reflect the second image by the first surface such that the user's eye on the second side is positioned. The first image and the second image, which are viewed from the position where they are positioned, are superimposed and arranged so as to be viewed as a stereoscopic image by the user. The second optical member at least partially reflects an external scene by the second surface, and the external scene is superimposed on the first image and the second image viewed from a position where the eyes of the user are arranged. are arranged to be

A mobile object of the present disclosure includes a display device. The display device comprises a first optical member having a first surface, a second optical member having a second surface, a first display, and a second display. The first display is located on a first side of the first surface and is configured to display a first image. The second display is located on a second side of the first surface opposite the first side and is configured to display a second image. The first optical member is configured to at least partially transmit the first image and at least partially reflect the second image by the first surface such that the user's eye on the second side is positioned. The first image and the second image, which are viewed from the position where they are positioned, are superimposed and arranged so as to be viewed as a stereoscopic image by the user. The second optical member at least partially reflects an external scene by the second surface, and the external scene is superimposed on the first image and the second image viewed from a position where the eyes of the user are arranged. are arranged to be

Objects, features and advantages of the present disclosure will become more apparent from the following detailed description and drawings.
1 is a diagram showing a schematic configuration of a display device according to an embodiment; FIG. FIG. 2 is a diagram showing arrangement of components when the display device of FIG. 1 is mounted on a moving body; FIG. 3 is an enlarged view showing the arrangement of each component of the display device and the optical path of image light in the first state; It is a figure explaining the image which a user visually recognizes. It is a figure which expands and shows arrangement|positioning of each component of a display apparatus in a 2nd state, and the optical path of image light. 2 is a diagram showing another display device having a configuration different from that of the display device shown in FIG. 1; FIG. 2 is a diagram showing still another display device having a different configuration from the display device shown in FIG. 1; FIG.

Embodiments of the present disclosure will be described below with reference to the drawings. The figures used in the following description are schematic. The dimensional ratios and the like on the drawings do not necessarily match the actual ones.

TECHNICAL FIELD The present disclosure relates to a display device capable of displaying an aerial image recognized as a stereoscopic image superimposed on a background, and a mobile object equipped with the display device.

(Configuration of display device)
As shown in FIG. 1, a display device 10 according to an embodiment of the present disclosure includes a first optical member 11, a second optical member 12, a first display 13, and a second display . Display device 10 may further comprise a controller 16 and a detector 17 .

The first optical member 11 is a partially reflecting mirror that partially reflects and partially transmits incident light. The first optical member 11 can be constructed, for example, by depositing a metal or dielectric material on a glass substrate. The first optical member 11 has, for example, a plate-like shape. One surface of the first optical member 11 on which the partially reflecting surface is formed is called a first surface 11a. The first optical member 11 can also have a shape other than a flat plate. The light transmittance and reflectance of the first optical member 11 can be arbitrarily set by design.

The second optical member 12 is a partially reflecting mirror that partially reflects and partially transmits incident light. The second optical member 12 is arranged close to the first optical member 11 . The second optical member 12 can be configured as a plate-like member like the first optical member 11 . One surface of the second optical member 12 on which the partially reflecting surface is formed is called a second surface 12a. The light transmittance and reflectance of the second optical member 12 can be arbitrarily set by design.

The second surface 12a is arranged to be inclined with respect to the first surface 11a. In one embodiment, the space between the first surface 11a and the second surface 12a is wide at the top and narrow at the bottom. In the present disclosure, downward means the direction in which gravity acts, and upward means the opposite direction. The angle formed by the first surface 11a and the second surface 12a can be, for example, an acute angle in the range of 5° to 30°.

A first display 13 is located on one side of the first optical member 11 . In FIG. 1, the first display 13 is located on the opposite side of the first optical member 11 to the side on which the second optical member 12 is arranged. The side of the first optical member 11 on which the first display 13 is arranged is called the first side. The first display 13 is arranged with its display surface facing a second side opposite to the first side. The first display 13 is, for example, a liquid crystal display (LCD), an organic EL (Electro-Luminescence) display, an inorganic EL display, a plasma display (PDP: Plasma Display Panel), or a field emission display (FED: Field Emission Display). ), electrophoretic displays, twist ball displays, etc., may be employed. The first display 13 emits the first image light L<b>1 that propagates the first image toward the first optical member 11 .

A second display 14 is located on the second side of the first optical member 11 and the second optical member 12 . However, the second display 14 is displaced from the position facing the first display 13 with the first optical member 11 interposed therebetween. The position where the second display 14 is arranged is shifted from the normal line direction of the first surface 11 a of the first optical member 11 . For example, the second display 14 is arranged shifted upward from the normal direction of the first surface 11a. The second display 14, like the first display 13, may employ a flat panel display. The second display 14 displays the second image. The second display 14 emits the second image light L2 that propagates the second image toward the first optical member 11 and the second optical member 12 .

A user 30 viewing an image on the display device 10 is positioned on the second side of the first optical member 11 and the second optical member 12 . The direction connecting the first optical member 11 and the second optical member 12 to the user 30 is deviated from the direction connecting the first optical member 11 and the second optical member 12 to the second display 14 .

The first optical member 11 at least partially transmits the first image light L1 of the first image emitted from the first display 13 toward the user 30 . The first optical member 11 at least partially reflects the second image light L2 of the second image emitted from the second display 14 toward the user 30 by the first surface 11a. Note that the first image light L1 and the second image light L2 are at least partially transmitted through the second optical member 12 . As a result, the first image and the second image viewed from the positions where the left and right eyes 30a of the user 30 on the second side are arranged are superimposed and viewed by the user 30 .

The second optical member 12 at least partially reflects the external light L3 propagating from the external scene, and the first image, the second image, and the external scene are superimposed and visually recognized from the position where the eye 30a of the user 30 is arranged. are arranged as follows. As shown in FIG. 1, the first image light L1 transmitted through the first optical member 11 is reflected by the first optical member 11 because the first surface 11a and the second surface 12a are inclined with respect to each other. The second image light L2 and the external light L3 reflected by the second optical member 12 are directed in the same direction.

The control device 16 controls the first and second images displayed on the first display 13 and the second display 14 . The control device 16 has functional blocks of an acquisition unit 16a, a display image generation unit 16b, and a display adjustment unit 16c. Controller 16 includes one or more processors. Controller 16 or a processor included in controller 16 may include one or more memories that store programs and information during operation for various processes. Memory includes volatile memory and non-volatile memory. The memory includes memory separate from the processor and internal memory of the processor. The processor includes a general-purpose processor that loads a specific program to execute a specific function, and a dedicated processor that specializes in specific processing. Special purpose processors include Application Specific Integrated Circuits (ASICs). The processor includes a programmable logic device (PLD). PLDs include FPGAs (Field-Programmable Gate Arrays). The control unit may be either SoC (System-on-a-Chip) or SiP (System In a Package) in which one or more processors cooperate.

The acquisition unit 16 a acquires the positions of the left and right eyes 30 a of the user 30 from the detector 17 . The detector 17 detects the positions of the left and right eyes 30 a of the user 30 . Detector 17 may be configured to include a camera. The camera of detector 17 may include an imager. The imaging device may include a CCD image sensor (Charge-Coupled Device Image Sensor) and a CMOS image sensor (Complementary MOS Image Sensor). The detector 17 may calculate the position of the eye 30a of the user 30 in the three-dimensional space based on the image acquired by the camera. Detector 17 may be a component of display device 10 . Detector 17 may not be included in display device 10 and may be shared with devices for other uses.

The display image generation unit 16b generates images to be displayed on the first display 13 and the second display 14 based on information stored in the internal memory of the control device 16 or information input from the outside. The display image generator 16b may display the first image and the second image including the aerial image representing the same object on the first display 13 and the second display 14 .

The display adjustment unit 16c adjusts the first aerial image included in the first image and the second image based on the position of the eye 30a of the user 30 detected by the detector 17 and acquired by the acquisition unit 16a. The second aerial image is displayed so as to overlap within the field of view of the user 30. - 特許庁The display adjustment unit 16c adjusts the position, size and brightness of the first aerial image and the second aerial image. The display of the first image, the second image, and the first aerial image and the second aerial image included therein will be described later with reference to FIG.

When the positional relationship between each component of the display device 10 and the eye 30a of the user 30 is fixed, the detector 17 and the acquisition section 16a of the control device 16 are not required. Therefore, the display device 10 can also be configured without the acquisition unit 16 a of the control device 16 and the detector 17 .

(Display device mounted on a moving body)
As shown in FIGS. 2 and 3, the display device 10 can be mounted on a moving object 20. FIG.

A “moving object” in the present disclosure may include, for example, a vehicle, a ship, an aircraft, and the like. Vehicles may include, for example, automobiles, industrial vehicles, rail vehicles, utility vehicles, and fixed-wing aircraft that travel on runways, and the like. Motor vehicles may include, for example, cars, trucks, buses, motorcycles, trolleybuses, and the like. Industrial vehicles may include, for example, industrial vehicles for agriculture and construction, and the like. Industrial vehicles may include, for example, forklifts, golf carts, and the like. Industrial vehicles for agriculture may include, for example, tractors, tillers, transplanters, binders, combines, lawn mowers, and the like. Industrial vehicles for construction may include, for example, bulldozers, scrapers, excavators, mobile cranes, tippers, road rollers, and the like. Vehicles may include those that are powered by humans. Vehicle classification is not limited to the above example. For example, automobiles may include road-drivable industrial vehicles. Multiple classifications may contain the same vehicle. Vessels may include, for example, marine jets, boats, tankers, and the like. Aircraft may include, for example, fixed-wing and rotary-wing aircraft.

A part of the display device 10 is arranged inside the moving body 20 and can also serve as a rearview mirror used by the driver of the moving body 20 who is the user 30 to visually recognize the rear. In the present application, the direction in which the moving body 20 travels during normal travel is referred to as the forward direction, and the direction in which the moving body 20 travels in the reverse direction is referred to as the rearward direction. A rearview mirror can be rephrased as a rearview mirror or a rearview mirror. In this case, the first optical member 11 , the second optical member 12 and the first display 13 are housed in the same housing 21 . The housing 21 is fixed to the upper part of the windshield 20a of the moving body 20 or the inner leading portion of the ceiling 20b (roof) via the support member 22. As shown in FIG.

Between the housing 21 and the support member 22, the orientation of the housing 21 is fixed so as to be changeable between a first orientation and a second orientation. The housing 21 may be provided with a lever for the user 30 to switch the orientation of the housing 21 . The state of the display device 10 in the first orientation is called the first state. The state of the display device 10 in the second orientation is called the second state. The first state is a normal state in which an intermediate image perceived as three-dimensional can be displayed on the display device 10 . Note that the configuration for changing the orientation of the housing 21 is not an essential configuration for the display device 10 .

FIG. 3 shows the display device 10 in the first state. In the first state, the user 30 sees the first image transmitted through the first optical member 11 and the second optical member 12 and the image transmitted through the second optical member 12 and reflected by the first surface 11 a of the first optical member 11 . A second image can be visually recognized. Also, in the first state, the user 30 visually recognizes the external scenery behind the moving object 20 reflected by the second optical member 12 . In the visual field of the user 30, the first image, the second image and the outside scenery are displayed in an overlapping manner. In the first state, the image display on the first display 13 and the second display 14 is turned off, i.e., hidden, so that the user 30 can visually recognize only the rear external scenery reflected by the second optical member 12. .

The second display 14 can be arranged inside the ceiling 20 b of the moving body 20 . By being provided at this position, the second display 14 does not interfere with other devices of the mobile body 20 and does not hinder the movement of the passenger of the mobile body 20 . In this case, the second display 14 can be configured to have directivity such that the second image light L2 is emitted toward the first optical member 11 and the second optical member 12 . The moving body 20 may be provided with a third display 23 inside the ceiling 20b of the moving body 20 so that passengers in the rear seats can view images. The second display 14 can be arranged in front of the third display 23 .

As shown in FIG. 2 , the control device 16 can be provided at any position inside the moving body 20 . For example, controller 16 may be provided inside a dashboard. Further, the detector 17 can be arranged at any position as long as it can detect the positions of the eyes 30a of the driver who is the user 30 . For example, the detector 17 can be placed on the dashboard.

(image display)
Next, an image recognized by the user 30 using the display device 10 will be described.

As shown in FIG. 4 , a first image 41 , a second image 42 and an outside scene 43 are displayed within the field of view of the user 30 . A first image 41 is an image displayed on the first display 13 . The second image 42 is an image displayed on the second display 14 and reflected by the first surface 11 a of the first optical member 11 . The user 30 visually recognizes the second image 42 as a virtual image located at a location separated by the optical path length of the second image light L2. The outside scene 43 is an image reflected by the second surface 12 a of the second optical member 12 . Since the normal direction of the second surface 12a of the second optical member 12 is tilted downward from the horizontal direction, the outside light L3 coming from the outside scene 43 passes over the head of the user 30 and reaches the second surface. It is reflected by 12a and can enter the user's 30 field of view.

The first image 41 and the second image 42 may each include a first aerial image 44 and a second aerial image 45 representing the same object. The display adjustment unit 16 c of the control device 16 adjusts the positions and sizes of the first aerial image 44 and the second aerial image 45 based on the position of the eye 30 a of the user 30 detected by the detector 17 . As a result, the first aerial image 44 and the second aerial image 45 are displayed overlapping when viewed from the position of the user's 30 eye 30a.

Furthermore, the display adjustment unit 16c adjusts the brightness of the first aerial image 44 and the second aerial image 45. FIG. As is conventionally known, when the first aerial image 44 and the second aerial image 45, which are two-dimensional images at different distances from the user 30, are superimposed and displayed, the user 30 can see the first aerial image 44 and the second aerial image 45. The two aerial images 45 are recognized as one image (composite aerial image 46) synthesized in the depth direction. Furthermore, by changing the luminance ratio between the first aerial image 44 and the second aerial image 45 using a technology called DFD (Depth-fused-3D), the user 30 can determine the position of the composite aerial image 46 in the depth direction. changes and is recognized. In FIG. 4, a composite aerial image 46 of the first aerial image 44 and the second aerial image 45 recognized by the user 30 is indicated by a dashed line. Therefore, by superimposing and displaying aerial images with different brightness visually recognized by the user 30 on the first image 41 and the second image 42, the user 30 can visually recognize a three-dimensional display image. becomes possible.

In order to adjust the brightness balance between the outside scene 43 and the first aerial image 44 and the second aerial image 45, the display device 10 may have a brightness sensor that detects the brightness of the surrounding environment. Alternatively, the display device 10 may acquire information indicating the brightness of the surrounding environment from another device having a brightness sensor. The display adjustment unit 16c of the control device 16 determines the brightness of the first aerial image 44 and the second aerial image 45 based on the detected or acquired brightness of the surrounding environment. The display adjustment unit 16c adjusts the first aerial image 44 and the second aerial image 45 so as not to be too bright or too dark with respect to the external scene 43. FIG.

Three-dimensional display by the display device 10 can be applied to various uses. For example, the display device 10 may work in conjunction with a sensor that detects obstacles behind the moving object 20 at night. When an obstacle behind is detected by the sensor, the display device 10 can display the approximate shape and position of the detected obstacle as a synthetic aerial image 46 . The display device 10 adjusts the brightness of the first aerial image 44 and the second aerial image according to the distance to the obstacle detected by the sensor, and adjusts the distance to the synthetic aerial image 46 visually recognized by the user 30. can be changed. As a result, the user 30 can visually grasp the distance to the rear obstacle when the moving body 20 moves backward.

(switching posture)
As shown in FIG. 5, the display device 10 according to one embodiment mounted on the moving body 20 changes the orientation of the housing 21 (the orientation of the opening side in which the second optical member 12 is provided) from the first state to the relative position. can be switched to a second state facing downwards. In the second state, the first surface 11a of the first optical member 11 at least partially reflects the external light L3 toward the user's 30 eye 30a. Part of the external light L3 is also reflected by the second surface 12a of the second optical member 12 . However, since the orientation of the second surface 12a is different from that in the first state, the external light L3 reflected by the second surface 12a does not enter the user's 30 eye 30a.

In the second state, external light L3 passes through the second optical member 12, is reflected by the first surface 11a of the first optical member 11, passes through the second optical member 12, and reaches the eye 30a of the user 30. The rate of arrival is taken as the composite reflectance. The composite reflectance is smaller than the reflectance of the second surface 12a reflecting the external light L3 in the first state. Therefore, the first optical member 11 and the second optical member 12 housed in the housing 21 of the display device 10 can function as an anti-glare rearview mirror (anti-glare rearview mirror).

As an example, it is assumed that the reflectance and transmittance of light in the visible region of the first optical member 11 and the second optical member 12 are 50%, respectively. In this case, 50% of the external light L3 is reflected by the second optical member 12 in the first state shown in FIG. On the other hand, in the second state shown in FIG. 5, the external light L3 passes through the second optical member 12 twice and is reflected once by the first optical member 11, so the combined reflectance is 12.5%. Become. Therefore, the reflectance in the second state is about 1/4 of the reflectance in the first state. Further, in the first state, 25% of the first image light L1 reaches the user's 30 eye 30a. Similarly, 12.5% of the second image light L2 reaches the user's 30 eye 30a.

In the second state, the control device 16 may turn off the display of the first display 13 and the second display 14, that is, hide the display. In that case, the user 30 can visually recognize only the rear external scene 43 reflected by the first optical member 11 . In the second state, the control device 16 may turn off the display of only the second display 14 and cause the first display 13 to display an image. The first image light L1 of the first image 41 displayed on the first display 13 passes through the first optical member 11 and the second optical member 12 and reaches the user's 30 eye 30a. In this case, the user 30 can visually recognize the two-dimensional first image 41 displayed on the first display 13 together with the outside scenery 43 .

In order to detect whether the housing 21 is in the first state or the second state, the display device 10 may have a sensor for detecting the orientation or orientation of the housing 21 . A geomagnetic sensor or an acceleration sensor can be used as such a sensor. The control device 16 may control display/non-display of the first display 13 and the second display 14 according to the orientation or posture of the housing 21 based on the output from the sensor.

As described above, according to the present embodiment, the display device 10 superimposes the first aerial image 44 and the second aerial image 45 displayed on the first display 13 and the second display 14 on the outside scene 43. , can be displayed as a stereoscopic image. In addition, since the first surface 11a of the first optical member 11 and the second surface 12a of the second optical member 12 of the display device 10 are tilted with respect to each other, the second display 14 receives the external light L3 from the outside scene 43. does not interfere with the optical path of As a result, the first image 41, the second image 42, and the external scene 43 can be superimposed and displayed within the field of view of the user 30. FIG.

Further, when mounted on the moving body 20, the first optical member 11 and the second optical member 12 housed in the housing 21 of the display device 10 are rearview mirrors with anti-glare functions used during nighttime driving. can serve as Therefore, the display device 10 of the present disclosure does not require a new space or can be installed in a small space in order to be installed in the mobile body 20 .

(Other layout/configuration examples)
In the above embodiment, the second display 14 is arranged on the ceiling 20b of the moving body 20. FIG. However, as shown in FIG. 6, the second display 14 may be provided on the back side of the display panel of the third display 23 arranged inside the ceiling 20b of the moving body 20 for passengers in the rear seats. . By arranging the second display 14 behind the third display 23 in this way, the display surface of the second display 14 becomes more parallel to the first surface 11 a of the first optical member 11 . As a result, the angle of viewing the display surface of the second display 14 from the first surface 11a can be made closer to the normal direction of the display surface. As a result, the area of the display surface of the second display 14 can be made smaller.

Also, the arrangement of the first optical member 11 and the second optical member 12 is not limited to the arrangement shown in the above embodiment. For example, as shown in FIG. 7, the second optical member 12 may be located closer to the first display 13 than the first optical member 11 is. The second surface 12 a of the second optical member 12 is inclined with respect to the first surface 11 a of the first optical member 11 . The space between the first surface 11a and the second surface 12a is narrow at the top and wide at the bottom.

In this case, in the first state, the first image light L1 emitted from the first display 13 is at least partially transmitted through the second optical member 12 and the first optical member 11 in order, and the light of the user's 30 eyes. 30a is reached. The second image light L2 emitted from the second display 14 is at least partially reflected by the first optical member 11 and reaches the user's 30 eye 30a. External light L3 coming from the external scene 43 is transmitted through the first optical member 11, reflected by the second surface 12a of the second optical member 12, transmitted through the first optical member 11 again, and reaches the eye 30a of the user 30. reach. Therefore, the user 30 can visually recognize an image in which the first image 41 displayed on the first display 13 and the second image 42 displayed on the second display 14 are superimposed on the outside scene 43 .

Further, the display device 10 of FIG. 7 can be changed to the second state by changing the orientation of the housing 21 to the right (clockwise) direction by a predetermined angle along the arrow in the drawing. In the second state, the first surface 11a of the first optical member 11 reflects the external light L3 toward the user's 30 eye 30a. Here, by making the reflectance of the first optical member 11 significantly smaller than the reflectance of the second optical member 12, the reflectance of the external light L3 in the second state is changed to the reflection of the external light L3 in the first state. can be smaller than the rate. For example, it is assumed that the first optical member 11 has a reflectance of 20% and a transmittance of 80% for light in the visible light region. It is also assumed that the second optical member 12 has a reflectance of 80% and a transmittance of 20% for light in the visible light region. In this case, 51.2% of the external light L3 reaches the eye 30a of the user 30 in the first state. On the other hand, in the second state, 20% of the external light L3 reaches the user's 30 eye 30a. Therefore, in the display device 10 of FIG. 7, the first optical member 11 and the second optical member 12 housed in the housing 21 function as a rearview mirror having an antiglare function.

According to the embodiments of the present disclosure, an aerial image recognized as a stereoscopic image can be superimposed on the background and displayed.

Although the embodiments of the present disclosure have been described with reference to the drawings and examples, it should be noted that those skilled in the art can easily make various variations or modifications based on the present disclosure. Therefore, it should be noted that these variations or modifications are included within the scope of this disclosure. For example, each component can be rearranged so as not to be logically inconsistent, and multiple components can be combined into one or divided. Although the embodiments of the present disclosure have been described with a focus on the apparatus, the embodiments of the present disclosure may also be implemented as a method including steps performed by each component of the apparatus. Embodiments according to the present disclosure can also be implemented as a method, a program, or a storage medium recording a program executed by a processor provided in an apparatus. It should be understood that these are also included within the scope of the present disclosure.

In this disclosure, each requirement performs an executable action. Therefore, in the present disclosure, an action performed by each requirement may mean that the requirement is configured to be able to perform the action. In the present disclosure, when each requirement performs an action, it can be appropriately rephrased that the requirement is configured to be able to perform the action. In the present disclosure, an operation that can be performed by each requirement can be appropriately rephrased as that the requirement that includes or has the requirement can perform the operation. In this disclosure, when one requirement causes another requirement to perform an action, it may mean that the one requirement is configured to allow the other requirement to perform that action. In the present disclosure, when one requirement causes another requirement to perform an action, the one requirement is configured to control the other requirement such that the other requirement can cause the other requirement to perform the action. In other words, it is done. In the present disclosure, among operations performed by each requirement, operations not described in the scope of claims can be understood as non-essential operations.

Descriptions such as “first” and “second” in the present disclosure are identifiers for distinguishing the configurations. Configurations that are differentiated in descriptions such as "first" and "second" in this disclosure may interchange the numbers in that configuration. For example, the first optical member can exchange the identifiers "first" and "second" with the second optical member. The exchange of identifiers is done simultaneously. The configurations are still distinct after the exchange of identifiers. Identifiers may be deleted. Configurations from which identifiers have been deleted are distinguished by codes. The description of identifiers such as “first” and “second” in this disclosure should not be used as a basis for interpreting the order of the configuration or the existence of lower numbered identifiers.

REFERENCE SIGNS LIST 10 display device 11 first optical member 11a first surface 12 second optical member 12a second surface 13 first display 14 second display 16 control device 16a acquisition unit 16b display image generation unit 16c display adjustment unit 17 detector 20 moving body 20a windshield 20b ceiling 21 housing 22 support member 23 third display 30 user 30a eye 41 first image 42 second image 43 outside scenery 44 first aerial image 45 second aerial image 46 composite aerial image L1 first image light L2 th 2 image light L3 outside light

Claims (10)

a first optical member having a first surface;
a second optical member having a second surface;
a first display located on a first side of the first surface and configured to display a first image;
a second display located on a second side of the first surface opposite the first side and configured to display a second image;
with
The first optical member is configured to at least partially transmit the first image and at least partially reflect the second image by the first surface such that the user's eye on the second side is positioned. The first image and the second image, which are viewed from a position where they are viewed, are superimposed and arranged so as to be viewed as a stereoscopic image by the user,
The second optical member at least partially reflects an external scene by the second surface, and the external scene is superimposed on the first image and the second image viewed from a position where the eyes of the user are arranged. Display device arranged to be displayed. 2. The display device of Claim 1, wherein the second image is configured to be at least partially transmissive through the second optical member. 3. The display device according to claim 1, wherein said second surface is inclined with respect to said first surface. 4. The second optical member mounted inside a moving body also serves as a rearview mirror used by a driver of the moving body, who is the user, to view backward. The display device according to . The first display, the first optical member, and the second optical member are housed in the same housing, and the second optical member at least partially reflects an external scene toward a position where the user's eyes are placed. 5. The display device according to claim 4, configured to be able to change the posture of said housing so as to change the orientation of said housing. 6. The display device according to claim 4, wherein said second display is arranged inside a ceiling of said moving body. 6. The second display according to claim 4 or 5, wherein said second display is provided on the back side of a display panel of a third display arranged inside a ceiling of said mobile body for passengers on rear seats of said mobile body. display device. Acquiring the eye position of the user, and based on the acquired eye position of the user, a first aerial image included in the first image and a second aerial image included in the second image 8. The display device according to any one of claims 1 to 7, further comprising a processor for displaying the . The processor adjusts the brightness of the first aerial image and the second aerial image to adjust the depth direction of the aerial image, which is a combination of the first aerial image and the second aerial image viewed by the user. 9. The display device of claim 8, wherein the position of the is adjusted. a first optical member having a first surface, a second optical member having a second surface, a first display located on a first side of the first surface and configured to display a first image; and A second display located on a second side of the first surface opposite the first side and configured to display a second image, the first optical member comprising: and the second image is at least partially reflected by the first surface so that the first image is viewed from a position where the user's eyes on the second side are positioned. and the second image are superimposed and arranged so as to be visually recognized as a stereoscopic image by the user, and the second optical member reflects an external scene at least partially by the second surface, and the user's A moving body comprising a display device arranged such that the first image and the second image viewed from a position where an eye is arranged are superimposed on the outside scene.

Images