WO2020241862A1

WO2020241862A1 - Display device and mobile body

Info

Publication number: WO2020241862A1
Application number: PCT/JP2020/021439
Authority: WO
Inventors: 薫草深; 橋本　直
Original assignee: 京セラ株式会社
Priority date: 2019-05-30
Filing date: 2020-05-29
Publication date: 2020-12-03
Also published as: JP7208378B2; JPWO2020241862A1

Abstract

A display device (10) of the present disclosure comprises: a first optical member (11) having a first surface (11a); a second optical member (12) having a second surface (12a); a first display (13); and a second display (14). The first display (13) is positioned on a first side of the first surface (11a) and is configured to display a first image. The second display (14) is positioned on a second side that is opposite the first side of the first surface (11a), and is configured to display a second image. The first optical member (11) at least partially transmits the first image and causes the first surface (11a) to at least partially reflect the second image. The second optical member (12) causes the second surface (12a) to at least partially reflect an external view.

Description

Display device and mobile body

The present disclosure relates to a display device and a moving body for displaying an aerial image.

A technique has been proposed in which two or more layers of aerial images are superimposed and projected in space so that the user can perceive the image as having a stereoscopic effect (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 was room for improvement in the technique of superimposing an aerial image on a background such as an external landscape so that the user could visually recognize it as a three-dimensional image.

The 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 the first side of the first surface and is configured to display a first image. The second display is located on the second side of the first surface opposite to the first side, and is configured to display a second image. The first optical member is arranged by the user's eyes on the second side by transmitting the first image at least partially and reflecting the second image at least partially by the first surface. The first image and the second image visually recognized from the position where the image is formed are superposed and arranged so as to be visually recognized as a stereoscopic image by the user. The second optical member reflects the outside view at least partially by the second surface, and the first image and the second image viewed from the position where the user's eyes are arranged are superimposed on the outside view. Arranged to be.

The mobile body of the present disclosure includes a display device. The display device 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 the first side of the first surface and is configured to display a first image. The second display is located on the second side of the first surface opposite to the first side, and is configured to display a second image. The first optical member is arranged by the user's eyes on the second side by transmitting the first image at least partially and reflecting the second image at least partially by the first surface. The first image and the second image visually recognized from the position where the image is formed are superposed and arranged so as to be visually recognized as a stereoscopic image by the user. The second optical member reflects the outside view at least partially by the second surface, and the first image and the second image viewed from the position where the user's eyes are arranged are superimposed on the outside view. Arranged to be.

The purposes, features, and advantages of this disclosure will become clearer from the detailed description and drawings below.
It is a figure which shows the schematic structure of the display device which concerns on one Embodiment. It is a figure which shows the arrangement of each component when the display device of FIG. 1 is mounted on a moving body. It is an enlarged figure which shows the arrangement of each component of the display device in the 1st state, and the optical path of an image light. It is a figure explaining the image visually seen by a user. It is an enlarged figure which shows the arrangement of each component of the display device in the 2nd state, and the optical path of an image light. It is a figure which shows the other display device which has a structure different from the display device shown in FIG. It is a figure which shows the other display device which has a structure different from the display device shown in FIG.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. The figures used in the following description are schematic. The dimensional ratios on the drawings do not always match the actual ones.

The present disclosure relates to a display device capable of superimposing an aerial image recognized as a three-dimensional image on the background and a moving body equipped with the display device.

(Display device configuration)
As shown in FIG. 1, the display device 10 according to the embodiment of the present disclosure includes a first optical member 11, a second optical member 12, a first display 13, and a second display 14. The display device 10 can further include a control device 16 and a detector 17.

The first optical member 11 is a partial reflection mirror that reflects a part of the incident light and transmits a part of the incident light. The first optical member 11 can be formed by, for example, depositing a metal or dielectric material on a glass substrate. The first optical member 11 has, for example, a flat plate shape. One surface on which the partially reflective surface of the first optical member 11 is formed is referred to as a first surface 11a. The first optical member 11 can 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 partial reflection mirror that reflects a part of the incident light and transmits a part of the incident light. The second optical member 12 is arranged in close proximity to the first optical member 11. The second optical member 12 can be configured as a plate-shaped member like the first optical member 11. One surface on which the partially reflective surface of the second optical member 12 is formed is referred to as 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 so as 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 above and narrow below. In the present disclosure, the lower direction means the direction in which gravity acts, and the upper side 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 °.

The 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 side of the first optical member 11 opposite 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 referred to as a first side. The first display 13 is arranged with the display surface facing the second side opposite to the first side. The first display 13 is, for example, a liquid crystal display (LCD: Liquid Crystal Display), an organic EL (Electro-Luminescence) display, an inorganic EL display, a plasma display (PDP: Plasma Display Panel), an electric field emission display (FED: Field Emission Display). ), Various flat panel displays such as an electrophoretic display and a twisted ball display can be adopted. The first display 13 emits the first image light L1 propagating the first image toward the first optical member 11.

The 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 arranged so as to be offset 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 deviated from the normal direction of the first surface 11a of the first optical member 11. For example, the second display 14 is arranged so as to be offset upward from the normal direction of the first surface 11a. As the second display 14, a flat panel display may be adopted like the first display 13. The second display 14 displays the second image. The second display 14 emits the second image light L2 propagating the second image toward the first optical member 11 and the second optical member 12.

The user 30 who visually recognizes the image by the display device 10 is located 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 different from the direction connecting the first optical member 11, the second optical member 12, and 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 in the direction of the user 30. The first optical member 11 reflects the second image light L2 of the second image emitted from the second display 14 at least partially toward the user 30 by the first surface 11a. The first image light L1 and the second image light L2 transmit at least a part of the second optical member 12. As a result, the first image and the second image that are visually recognized from the positions where the left and right eyes 30a of the user 30 on the second side are arranged are superimposed and visually recognized by the user 30.

The second optical member 12 reflects the external light L3 propagating from the outside view at least partially, and the first image, the second image, and the outside view are superposed and visually recognized from the position where the eyes 30a of the user 30 are arranged. Arranged so as to. As shown in FIG. 1, since the first surface 11a and the second surface 12a are tilted with respect to each other, they are reflected by the first image light L1 and the first optical member 11 transmitted through the first optical member 11. 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 image and the second image displayed on the first display 13 and the second display 14. The control device 16 has each functional block of the acquisition unit 16a, the display image generation unit 16b, and the display adjustment unit 16c. The control device 16 includes one or more processors. The control device 16 or the processor included in the control device 16 may include one or more memories for storing programs for various processes and information during calculation. The memory includes a volatile memory and a non-volatile memory. The memory includes a memory independent of the processor and a built-in memory of the processor. Processors include general-purpose processors that load specific programs and perform specific functions, and dedicated processors that specialize in specific processing. The dedicated processor includes an application specific integrated circuit (ASIC). The processor includes a programmable logic device (PLD; Programmable Logic Device). The PLD includes an FPGA (Field-Programmable Gate Array). The control unit may be either a SoC (System-on-a-Chip) in which one or a plurality of processors cooperate, or a SiP (System In a Package).

The acquisition unit 16a acquires the positions of the left and right eyes 30a of the user 30 from the detector 17. The detector 17 detects the positions of the left and right eyes 30a of the user 30. The detector 17 may be configured to include a camera. The camera of the detector 17 may include an image sensor. The image sensor 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 user 30's eyes 30a in the three-dimensional space based on the image acquired by the camera. The detector 17 can be a component of the display device 10. The detector 17 is not included in the display device 10 and may be shared with devices for other purposes.

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

The display adjustment unit 16c is included in 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. 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 and the second image, and the first aerial image and the second aerial image contained 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 unit 16a of the control device 16 are unnecessary. Therefore, the display device 10 can be configured not to include the acquisition unit 16a of the control device 16 and the detector 17.

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

The "moving body" 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, railroad vehicles, living vehicles, fixed-wing aircraft traveling on runways, and the like. Automobiles may include, for example, passenger cars, trucks, buses, motorcycles, trolley buses and the like. Industrial vehicles may include, for example, industrial vehicles for agriculture and construction. Industrial vehicles may include, for example, forklifts and golf carts. Industrial vehicles for agriculture may include, for example, tractors, cultivators, transplanters, binders, combines, lawnmowers and the like. Industrial vehicles for construction may include, for example, bulldozers, scrapers, excavators, crane trucks, dump trucks, road rollers and the like. The vehicle may include a vehicle that runs manually. The classification of vehicles is not limited to the above examples. For example, automobiles may include industrial vehicles that can travel on the road. The same vehicle may be included in multiple categories. Vessels may include, for example, marine jets, boats, tankers and the like. Aircraft may include, for example, fixed-wing aircraft, rotorcraft, and the like.

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, which is the user 30, to visually recognize the rear. In the present application, the direction in which the moving body 20 travels during normal traveling is referred to as forward, and the direction in which the moving body 20 travels in reverse (back) is referred to as backward. The 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.

The posture of the housing 21 is mutably fixed between the housing 21 and the support member 22 between the first orientation and the second orientation. The housing 21 may be provided with a lever for the user 30 to switch the direction 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 by the display device 10 can be displayed. The configuration for changing the posture of the housing 21 is not essential for the display device 10.

FIG. 3 shows the display device 10 in the first state. In the first state, the user 30 transmits the first image transmitted through the first optical member 11 and the second optical member 12 and is reflected by the first surface 11a of the first optical member 11 transmitted through the second optical member 12. The second image can be visually recognized. Further, in the first state, the user 30 visually recognizes the rear view of the moving body 20 reflected by the second optical member 12. In the field of view of the user 30, the first image, the second image, and the outside view are displayed in an overlapping manner. In the first state, by turning off the image display of the first display 13 and the second display 14, that is, hiding the image display, the user 30 can see only the rear outside view reflected by the second optical member 12. ..

The second display 14 can be arranged inside the ceiling 20b of the moving body 20. By providing the second display 14 at this position, the second display 14 does not interfere with other devices of the moving body 20 and does not interfere with the movement of the passenger of the moving body 20. In this case, the second display 14 may be configured to have directivity so that the second image light L2 is emitted toward the first optical member 11 and the second optical member 12. The mobile body 20 may have a third display 23 arranged inside the ceiling 20b of the mobile body 20 for viewing images of passengers in the rear seats. 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 an arbitrary position inside the moving body 20. For example, the control device 16 can be provided inside the dashboard. Further, the detector 17 can be arranged at any position as long as it can detect the position of the driver's eye 30a, which is the user 30. For example, the detector 17 can be placed on the dashboard.

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

As shown in FIG. 4, the first image 41, the second image 42, and the outside view 43 are displayed in the field of view of the user 30. The 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 11a 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 outer view 43 is an image reflected by the second surface 12a 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 external light L3 coming from the outside view 43 passes over the head of the user 30 and is the second surface. It is reflected by 12a and can enter the field of view of the user 30.

The first image 41 and the second image 42 can include a first aerial image 44 and a second aerial image 45 representing the same object, respectively. The display adjustment unit 16c 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 positions of the eyes 30a 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 eye 30a of the user 30.

Further, the display adjustment unit 16c adjusts the brightness of the first aerial image 44 and the second aerial image 45. As is conventionally known, when the first aerial image 44 and the second aerial image 45, which are two-dimensional images having different distances from the user 30, are displayed in an overlapping manner, the user 30 can see the first aerial image 44 and the first aerial image 44. The two aerial images 45 are recognized as one image (composite aerial image 46) synthesized in the depth direction. Further, by changing the brightness ratio between the first aerial image 44 and the second aerial image 45 by a technique called DFD (Depth-fused-3D), the position of the composite aerial image 46 in the depth direction is given to the user 30. Is changed and recognized. In FIG. 4, the composite aerial image 46 of the first aerial image 44 and the second aerial image 45 recognized by the user 30 is shown by a broken line. Therefore, the user 30 is made to visually recognize the three-dimensional display image by superimposing the aerial images having different brightness visually recognized by the user 30 on the first image 41 and the second image 42, respectively. Becomes possible.

In order to adjust the brightness balance between the outside view 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 adjusting 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 outside view 43.

The three-dimensional display by the display device 10 can be applied to various uses. For example, the display device 10 may interlock with a sensor that detects an obstacle behind the moving body 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 composite 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 determines the distance to the composite 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 obstacle behind when the moving body 20 moves backward.

(Switching posture)
As shown in FIG. 5, the display device 10 according to the embodiment mounted on the moving body 20 sets the orientation of the housing 21 (the orientation of the opening side on which the second optical member 12 is provided) relative to the first state. It is possible to switch to the second state facing downward. In the second state, the first surface 11a of the first optical member 11 reflects the external light L3 at least partially toward the eye 30a of the user 30. A 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 of the first state, the external light L3 reflected by the second surface 12a does not enter the eye 30a of the user 30.

In the second state, the 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 is transmitted to the eye 30a of the user 30. The rate of arrival is defined as the composite reflectance. The composite reflectance is smaller than the reflectance at which the second surface 12a reflects 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 antiglare type rearview mirror (antiglare type room mirror).

As an example, it is assumed that the reflectance and transmittance of light in the visible light region of the first optical member 11 and the second optical member 12 are 50%, respectively. In this case, in the first state shown in FIG. 3, 50% of the external light L3 is reflected by the second optical member 12. 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 that the composite 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 eye 30a of the user 30. Similarly, 12.5% of the second image light L2 reaches the eye 30a of the user 30.

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 view 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 display the image on the first display 13. 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 eye 30a of the user 30. 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 view 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 posture of the housing 21. As such a sensor, a geomagnetic sensor or an acceleration sensor can be used. The control device 16 may control the 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 view 43. , Can be displayed as a three-dimensional image. Further, since the first surface 11a of the first optical member 11 of the display device 10 and the second surface 12a of the second optical member 12 are inclined with respect to each other, the second display 14 is the external light L3 from the outside view 43. Does not interfere with the optical path of. As a result, the first image 41, the second image 42, and the outside view 43 can be superimposed and displayed in the field of view of the user 30.

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 having an antiglare function used during nighttime driving. Can also 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 because it is installed in the moving body 20.

(Other arrangement / configuration examples)
In the above embodiment, the second display 14 is arranged on the ceiling 20b of the moving body 20. 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 the passengers in the rear seats. .. By arranging the second display 14 on the back surface of the third display 23 in this way, the display surface of the second display 14 approaches more parallel to the first surface 11a of the first optical member 11. As a result, the angle at which the display surface of the second display 14 faces the display surface 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.

Further, 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 on the first side of the first display 13 side of the first optical member 11. The second surface 12a of the second optical member 12 is tilted with respect to the first surface 11a of the first optical member 11. The space between the first surface 11a and the second surface 12a is narrow in the upper direction and wide in the lower direction.

In this case, in the first state, the first image light L1 emitted from the first display 13 passes through the second optical member 12 and the first optical member 11 in order at least partially, and the eyes of the user 30. Reach 30a. The second image light L2 emitted from the second display 14 is reflected by the first optical member 11 at least partially and reaches the eye 30a of the user 30. The external light L3 coming from the outside view 43 passes through the first optical member 11 and is reflected by the second surface 12a of the second optical member 12, passes through the first optical member 11 again, and reaches the eye 30a of the user 30. To reach. Therefore, the user 30 can visually recognize the 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 view 43.

Further, the display device 10 in FIG. 7 can be changed to the second state by changing the direction of the housing 21 in the clockwise direction along the arrow in the figure by a predetermined angle. In the second state, the first surface 11a of the first optical member 11 reflects the external light L3 toward the eyes 30a of the user 30. 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. It can be smaller than the rate. For example, it is assumed that the light reflectance in the visible light region of the first optical member 11 is 20% and the transmittance is 80%. Further, it is assumed that the reflectance of light in the visible light region of the second optical member 12 is 80% and the transmittance is 20%. In this case, in the first state, 51.2% of the external light L3 reaches the eye 30a of the user 30. On the other hand, in the second state, 20% of the external light L3 reaches the eye 30a of the user 30. Therefore, the display device 10 of FIG. 7 functions as a rearview mirror in which the first optical member 11 and the second optical member 12 housed in the housing 21 have an antiglare function.

According to the embodiment of the present disclosure, an aerial image recognized as a three-dimensional image can be displayed by superimposing it on the background.

Although the embodiments relating to the present disclosure have been described based on various drawings and examples, it should be noted that those skilled in the art can easily make various modifications or modifications based on the present disclosure. It should be noted, therefore, that these modifications or modifications are within the scope of this disclosure. For example, each component can be rearranged so as not to be logically inconsistent, and a plurality of components can be combined or divided into one. Although the embodiment according to the present disclosure has been described mainly on the apparatus, the embodiment according to the present disclosure can also be realized as a method including steps executed by each component of the apparatus. The embodiments according to the present disclosure can also be realized as a method, a program, or a storage medium on which a program is recorded, which is executed by a processor included in the apparatus. It should be understood that the scope of this disclosure also includes these.

In this disclosure, each requirement performs a feasible action. Therefore, in the present disclosure, the actions performed by each requirement may mean that the requirements are configured to perform the actions. In the present disclosure, when each requirement executes an operation, it can be appropriately paraphrased that the requirement is configured to perform the operation. In the present disclosure, an action in which each requirement can be performed can be appropriately rephrased as a requirement having or having the requirement in which the action can be performed. In the present disclosure, if one requirement causes another requirement to perform an action, it may mean that the other requirement is configured to allow the other requirement to perform the action. In the present disclosure, if one requirement causes another requirement to perform an action, the one requirement is configured to control the other requirement so that the other requirement can perform the action. In other words, it has been done. In the present disclosure, it can be understood that the actions performed by each requirement that are not described in the claims are non-essential actions.

In this disclosure, the descriptions such as "first" and "second" are identifiers for distinguishing the configuration. The configurations distinguished by the descriptions such as "first" and "second" in the present disclosure can exchange numbers in the configurations. For example, the first optical member can exchange the identifiers "first" and "second" with the second optical member. The exchange of identifiers takes place at the same time. Even after exchanging identifiers, the configuration is distinguished. The identifier may be deleted. The configuration with the identifier removed is distinguished by a code. Based solely on the description of identifiers such as "first" and "second" in the present disclosure, it shall not be used as a basis for interpreting the order of the configurations and for the existence of identifiers with smaller numbers.

10 Display device 11 1st optical member 11a 1st surface 12 2nd optical member 12a 2nd surface 13 1st display 14 2nd display 16 Control device 16a Acquisition unit 16b Display image generation unit 16c Display adjustment unit 17 Detector 20 Moving object 20a Windshield 20b Ceiling 21 Housing 22 Support member 23 3rd display 30 User 30a Eye 41 1st image 42 2nd image 43 Outside view 44 1st aerial image 45 2nd aerial image 46 Synthetic aerial image L1 1st image Light L2 1st 2 Image light L3 External light

Claims

A first optical member having a first surface and
A second optical member having a second surface and
A first display located on the first side of the first surface and configured to display a first image,
A second display located on the second side of the first surface opposite to the first side and configured to display a second image.
With
The first optical member is arranged by the user's eyes on the second side by transmitting the first image at least partially and reflecting the second image at least partially by the first surface. The first image and the second image visually recognized from the position where the image is formed are superposed and arranged so as to be visually recognized as a stereoscopic image by the user.
The second optical member reflects the outside view at least partially by the second surface, and the first image and the second image and the outside view, which are visually recognized from the position where the user's eyes are arranged, are superimposed. A display device that is arranged to be.
The display device according to claim 1, wherein the second image is configured to transmit at least a part of the second optical member.
The display device according to claim 1 or 2, wherein the second surface is tilted with respect to the first surface.
Any one of claims 1 to 3, wherein the second optical member is mounted inside the moving body and also serves as a rearview mirror used by the driver of the moving body, which is the user, to visually recognize the rear. The display device described in.
The first display, the first optical member, and the second optical member are housed in the same housing, and the second optical member reflects the outside view at least partially toward the position where the user's eyes are arranged. The display device according to claim 4, which is configured so that the posture of the housing can be changed.
The display device according to claim 4 or 5, wherein the second display is arranged inside the ceiling of the moving body.
The second display is provided on the back side of the display panel of the third display arranged inside the ceiling of the moving body for the passengers in the rear seats of the moving body, according to claim 4 or 5. Display device.
The position of the user's eye is acquired, and the first aerial image included in the first image and the second aerial image included in the second image are obtained based on the acquired eye position of the user. The display device according to any one of claims 1 to 7, further comprising a processor that superimposes and displays the above in the user's field of view.
By adjusting the brightness of the first aerial image and the second aerial image, the processor adjusts the brightness of the first aerial image and the second aerial image visually recognized by the user in the depth direction of the combined aerial image. The display device according to claim 8, wherein the position of the display device is adjusted.
A first optical member having a first surface, a second optical member having a second surface, a first display located on the first side of the first surface and configured to display a first image, and A second display located on the second side of the first surface opposite to the first side and configured to display a second image is provided, and the first optical member is the first image. The first image is visually recognized from the position where the user's eyes on the second side are arranged by at least partially transmitting the second image and reflecting the second image at least partially by the first surface. And the second image are superposed and arranged so as to be visually recognized as a stereoscopic image by the user, and the second optical member reflects the outside view at least partially by the second surface of the user. A moving body including a display device arranged so that the first image and the second image and the outside view, which are visually recognized from the position where the eyes are arranged, are superimposed.