3D display device, 3D display system and mobile body

Abstract

To increase an opening in a barrier of a three-dimensional display device.SOLUTION: A three-dimensional display device 2 comprises: a display panel 5 that is configured to display a parallax image; an optical panel 5 on which a plurality of extinction surfaces 51 and a plurality of translucent areas 52 are alternately and repeatedly arranged; and a controller 7 that is configured to control the display panel 5. A first width along a parallax direction of each of the plurality of translucent areas 52 is larger than a second width along the parallax direction of each of the plurality of extinction surfaces 51, and the controller 7 can control the display panel to perform parallax separation of the parallax image by making a both eyes visible area that can be visually recognized from both eyes of a user a black image.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a head-up display, a display device for a head-up display, and a moving body. [Background technology]

[0002] 2. Description of the Related Art Conventionally, there has been known a display device that provides stereoscopic vision by projecting parallax images onto both eyes of a user by including a barrier that defines the direction of image light (see, for example, Patent Document 1, etc.). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 7-287196 Summary of the Invention [Problem to be solved by the invention]

[0004] The barrier blocks light and projects an image with parallax onto each of the user's eyes. Therefore, if the opening of the barrier is made too large, the image will also be projected onto the unintended eye.

[0005] The present disclosure has been made in consideration of the above-mentioned points, and has an object to provide a head-up display, a display device for a head-up display, and a moving body that can widen the opening of a barrier. [Means for solving the problem]

[0006] The three-dimensional display device of the present disclosure includes a display panel configured to display a parallax image, an optical panel in which a plurality of light-attenuating surfaces and a plurality of light-transmitting areas are repeatedly arranged alternately in a parallax direction, and a controller configured to control the display panel, wherein a first width of each of the plurality of light-transmitting areas along the parallax direction is greater than a second width of each of the plurality of light-attenuating surfaces along the parallax direction, and the controller is capable of controlling the display panel to parallax separate the parallax images by turning a binocular visible area visible from both eyes of a user into a black image.

[0007] The three-dimensional display system of the present disclosure includes a detection device for detecting the position of a first eye of a user and the position of a second eye different from the first eye, a display panel configured to display a parallax image, an optical panel having a plurality of light-attenuating surfaces and a plurality of light-transmitting areas arranged alternately in a parallax direction, and a controller configured to control the display panel, and a three-dimensional display device in which each of the first widths of the plurality of light-transmitting areas along the parallax direction is greater than each of the second widths of the plurality of light-attenuating surfaces along the parallax direction, and the controller is capable of controlling the display panel to parallax separate the parallax image by turning a binocular visible area visible from both eyes of the user into a black image.

[0008] The moving body of the present disclosure includes a display panel configured to display a parallax image, an optical panel in which a plurality of light-attenuating surfaces and a plurality of light-transmitting areas are repeatedly arranged alternately in the parallax direction, and a controller configured to control the display panel. A first width of each of the plurality of light-transmitting areas along the parallax direction is greater than a second width of each of the plurality of light-attenuating surfaces along the parallax direction, and the controller is capable of controlling the display panel to parallax separate the parallax image by turning a binocular visible area visible from both eyes of a user into a black image. Effect of the Invention

[0009] According to the three-dimensional display device and the like according to an embodiment of the present disclosure, the opening of the barrier can be enlarged. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram showing an example of a three-dimensional display system according to an embodiment as viewed from the vertical direction. [Diagram 2] FIG. 2 is a diagram showing an example of the display panel shown in FIG. 1 as viewed from the depth direction. [Diagram 3] FIG. 3 is a diagram showing an example of the parallax barrier shown in FIG. 1 as viewed from the depth direction. [Figure 4] FIG. 4 is a diagram showing an example of an active area of ​​the display panel shown in FIG. [Diagram 5] FIG. 5 is a diagram showing an example of a HUD equipped with a three-dimensional display system according to an embodiment. [Figure 6] FIG. 6 is a diagram showing an example of a moving object equipped with the HUD shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings.

[0012] A three-dimensional display system 100 according to multiple embodiments of the present disclosure includes a detection device 1 and a three-dimensional display device 2, as shown in FIG.

[0013] The detection device 1 is configured to detect the position of a first eye of a user. The detection device 1 is configured to output the detected position of the first eye to the three-dimensional display device 2. The detection device 1 may be configured to detect the position of a second eye of a user. The detection device 1 may be configured to output the detected position of the second eye to the three-dimensional display device 2. In the present disclosure, the first eye is described as the left eye and the second eye is described as the right eye, but the opposite may be true.

[0014] The detection device 1 may include, for example, a camera. The detection device 1 may be configured to capture an image of the user's face with the camera. The detection device 1 may be configured to detect the positions of the left eye and the right eye from an image captured by the camera including an image of the user's face. The detection device 1 may be configured to detect the positions of the left eye and the right eye as coordinates in a three-dimensional space from an image captured by one camera. The detection device 1 may be configured to detect the positions of the left eye and the right eye as coordinates in a three-dimensional space from images captured by two or more cameras.

[0015] The detection device 1 may not include a camera, and may be configured to be connected to an external camera. The detection device 1 may include an input terminal for inputting a signal from an external camera. The external camera may be configured to be directly connected to the input terminal. The external camera may be configured to be indirectly connected to the input terminal via a shared network. The detection device 1 without a camera may include an input terminal for the camera to input a video signal. The detection device 1 without a camera may be configured to detect the positions of the left eye and the right eye from the video signal input to the input terminal.

[0016] The detection device 1 may include, for example, a sensor. The sensor may be an ultrasonic sensor, an optical sensor, or the like. The detection device 1 may be configured to detect the position of the user's head by the sensor, and detect the positions of the left eye and the right eye based on the position of the head. The detection device 1 may be configured to detect the positions of the left eye and the right eye as coordinates in a three-dimensional space by one or more sensors.

[0017] The three-dimensional display system 100 may not include the detection device 1. When the three-dimensional display system 100 does not include the detection device 1, the three-dimensional display device 2 may include an input terminal for inputting a signal from an external detection device. The external detection device may be configured to be connected to the input terminal. The external detection device may receive an electrical signal and an optical signal as a transmission signal to the input terminal. The external detection device may be configured to be indirectly connected to the input terminal via a shared network. The three-dimensional display device 2 may be configured to receive position coordinates indicating the positions of the left eye and the right eye obtained from the external detection device.

[0018] The three-dimensional display device 2 can include an acquisition unit 3, an illuminator 4, a display panel 5, a parallax barrier 6 as an optical element, a controller 7, and a memory 8.

[0019] The acquisition unit 3 is configured to be able to input the left eye position and the right eye position detected by the detection device 1. The acquisition unit 3 is configured to be able to input the left eye position and the right eye position to the controller .

[0020] The illuminator 4 may be configured to illuminate the display panel 5 planarly. The illuminator 4 may include a light source, a light guide plate, a diffusion plate, a diffusion sheet, etc. The illuminator 4 is configured to emit illumination light from the light source and to uniformize the illumination light in the planar direction of the display panel 5. The illuminator 4 may generally uniformize the illumination light by the light guide plate, the diffusion plate, the diffusion sheet, etc. The illuminator 4 may be configured to emit the uniformized light toward the display panel 5.

[0021] As shown in FIG. 2, the display panel 5 has an active area 51 that spreads in a planar shape. The active area 51 has a plurality of partitioned regions. The active area 51 is operable to display a mixed image. The mixed image includes a first image and a second image. The second image has parallax with respect to the first image. The first image may be a left-eye image. The second image may be a right-eye image. The mixed image includes a third image.

[0022] The multiple partitioned regions are regions partitioned in a first direction and a second direction by a lattice-shaped black matrix 52. The second direction intersects with the first direction. The second direction may be substantially perpendicular to the first direction. The second direction may be perpendicular to the first direction. The first direction and the second direction form a plane. A direction perpendicular to the plane formed by the first direction and the second direction is called a third direction. The first direction may be called a horizontal direction. The second direction may be called a vertical direction. The third direction may be called a depth direction. However, the first direction, the second direction, and the third direction are not limited to these. In the drawings, the first direction is represented as the x-axis direction, the second direction is represented as the y-axis direction, and the third direction is represented as the z-axis direction.

[0023] Each of the plurality of partition areas corresponds to one subpixel. Each of the plurality of partition areas is configured to emit image light. The mixed image is a combination of the image lights. The active area 51 includes a plurality of subpixels arranged in a grid pattern along the horizontal and vertical directions. Each of the plurality of subpixels corresponds to one of the colors R (Red), G (Green), and B (Blue). Three subpixels of R, G, and B may constitute one pixel as a set. The number of subpixels that constitute one pixel is not limited to three, and may be any other number including four. The number of subpixels that constitute one pixel is not limited to the combination of R, G, and B. One pixel may be referred to as one pixel. The plurality of subpixels that constitute one pixel may be arranged in the horizontal direction, for example. The plurality of subpixels of the same color may be arranged in the vertical direction, for example.

[0024] The display panel 5 may be, for example, a transmissive display panel. Transmissive display panels include liquid crystal display panels. The display panel 5 is not limited to a transmissive liquid crystal panel, and may be a self-luminous display panel. Self-luminous display panels may include organic EL, inorganic EL, and the like. Other display panels may be used for the display panel 5. When a self-luminous display panel is used as the display panel 5, the 3D display device 2 does not need to include the illuminator 4.

[0025] The sub-pixels arranged in the active area 51 are grouped into a plurality of sub-pixel groups Pg The sub-pixel groups Pg are arranged repeatedly in the horizontal direction. The sub-pixel groups Pg are arranged repeatedly in the vertical direction, shifted by one or more predetermined sub-pixels in the horizontal direction. The sub-pixel groups Pg are arranged adjacent to each other. Each of the sub-pixel groups Pg includes a plurality of sub-pixels arranged in a predetermined row and a predetermined column. In the example shown in FIG. 2, the sub-pixel groups Pg include (2×n×b) sub-pixels P1 to P (2×n×b) arranged consecutively in the vertical direction (b rows) and in the horizontal direction (n columns). In the example shown in FIG. 2, n=6 and b=1. In the active area 51, a plurality of sub-pixel groups Pg are arranged, including 12 sub-pixels P1 to P12 arranged consecutively in the vertical direction and 12 sub-pixels P1 to P12 arranged consecutively in the horizontal direction. In the example shown in FIG. 2, some of the sub-pixel groups Pg are labeled with a symbol.

[0026] The multiple sub-pixel groups Pg are the minimum units for the controller 7 to control to display an image. The multiple sub-pixels P1 to P (2×n×b) having the same identification information of all the sub-pixel groups Pg are controlled simultaneously by the controller 7. Simultaneous includes simultaneous, substantially simultaneous, control based on the generation of the same single clock, and control in the same frame. For example, when switching an image to be displayed on the multiple sub-pixels P1 from a left-eye image to a right-eye image, the controller 7 may perform control so as to simultaneously switch the image to be displayed on the multiple sub-pixels P1 in all the sub-pixel groups Pg from the left-eye image to the right-eye image.

[0027] The parallax barrier 6 may be planar along the active area 51 as shown in Fig. 1. The parallax barrier 6 is separated from the active area 51 by a gap g of a predetermined distance. The parallax barrier 6 may be located on the opposite side of the illuminator 4 with respect to the display panel 5. The parallax barrier 6 may be located on the illuminator 4 side of the display panel 5.

[0028] The parallax barrier 6 is configured to define the light ray directions of a plurality of image lights emitted from a plurality of sub-pixels. The light ray direction is the propagation direction of the image light. The parallax barrier 6 includes a plurality of light-attenuating surfaces 61 and a plurality of light-transmitting regions 62. As shown in FIG. 3, each of the plurality of light-transmitting regions 62 is a strip-shaped region extending in a fourth direction in the plane. The fourth direction is a direction that forms a predetermined angle other than 0 degrees with the vertical direction. The third direction is a direction that intersects with the first direction and the second direction.

[0029] As shown in Fig. 1, the parallax barrier 6 defines the image light emitted by the multiple sub-pixels arranged in the active area 51, thereby determining an area on the active area 51 that is visible to the user's eyes. Hereinafter, each area in the active area 51 that emits image light that propagates to the position of the user's eyes is referred to as a visible area 51a. Multiple areas in the active area 51 that emit image light that propagates to the position of the user's left eye are referred to as multiple left visible areas 51aL (first visible areas). Multiple areas in the active area 51 that emit image light that propagates to the position of the user's right eye are referred to as multiple right visible areas 51aR (second visible areas).

[0030] Specifically, as shown in Fig. 3, the parallax barrier 6 has a plurality of attenuation surfaces 61 that attenuate image light. The plurality of attenuation surfaces 61 define light-transmitting regions 62 between adjacent attenuation surfaces 61. The plurality of attenuation surfaces 61 and the plurality of light-transmitting regions 62 are arranged alternately in the horizontal direction. A second width 62w of the light-transmitting regions 62 along the horizontal direction can be larger than a first width 61w of the attenuation surfaces 61 along the horizontal direction. The aperture ratio of the parallax barrier 6 can exceed 50%.

[0031] The multiple light-transmitting regions 62 are portions configured to transmit light incident on the parallax barrier 6. The multiple light-transmitting regions 62 have a higher light transmittance than the multiple light-attenuating surfaces 61. The multiple light-attenuating surfaces 61 have a lower light transmittance than the multiple light-transmitting regions 62. The light-transmitting regions 62 may transmit light with a transmittance equal to or higher than a first predetermined value. The first predetermined value may be, for example, approximately 100%. Alternatively, the first predetermined value may be a value less than 100%. As long as the image light emitted from the active area 51 can be well viewed, the first predetermined value may be a value less than 100%, for example, 80% or 50%. The plurality of light-reducing surfaces 61 are configured to block light incident on the parallax barrier 6 and hardly transmit it. The plurality of light-reducing surfaces 61 block the image displayed on the active area 51 of the display panel 5 from reaching the user's eyes. The plurality of light-reducing surfaces 61 may block light with a transmittance equal to or less than the second predetermined value. The second predetermined value may be, for example, approximately 0%, or may be a value greater than 0% and close to 0%, such as 0.5%, 1%, or 3%. The first predetermined value may be a value several times or more greater than the second predetermined value, for example, 10 times or more. The first predetermined value may be an appropriate public value within a range in which the contrast with the transmitted light through the light-reducing surfaces is ensured.

[0032] The plurality of light-transmitting regions 62 and the plurality of light-attenuating surfaces 61 extend in a predetermined direction along the active area 51. The plurality of light-transmitting regions 62 and the plurality of light-attenuating surfaces 61 may be arranged alternately in a direction perpendicular to the predetermined direction. The light-transmitting regions 62 are configured to define the light direction of image light emitted from the plurality of sub-pixels.

[0033] As shown in FIG. 1, the barrier pitch Bp, which is the horizontal arrangement interval of the light-transmitting regions 62, and the gap g between the active area 51 and the parallax barrier 6 are defined so that the following equations (1) and (2) hold, using the optimum viewing distance d and the standard distance E0.

[0034] E0:d=(n×Hp):g Equation (1) d:Bp=(d+g):(2×n×Hp) Equation (2) The optimum viewing distance d is the distance between the right eye and the left eye of the user and the parallax barrier 6. At the optimum viewing distance d, the horizontal length of the visible area 51a that can be viewed by each eye is n subpixels. The direction of the line passing through the right eye and the left eye (interocular direction) corresponds to the horizontal direction. The interocular direction may have different directions in physical space. The standard distance E0 is the standard interocular distance E of the user. The standard distance E0 may be, for example, 61.1 mm to 64.4 mm, which is a value calculated by research by the National Institute of Advanced Industrial Science and Technology. Hp is the horizontal length of a plurality of subpixels as shown in FIG. 2.

[0035] The parallax barrier 6 may be composed of a film or a plate-like member having a transmittance less than the second predetermined value. In this case, the light-reducing surface 61 is composed of the film or the plate-like member. The light-transmitting region 62 is composed of an opening provided in the film or the plate-like member. The film may be composed of a resin or other material. The plate-like member may be composed of a resin, a metal, or the like, or other material. The parallax barrier 6 is not limited to a film or a plate-like member, and may be composed of other types of members. The parallax barrier 6 may be configured such that the base material has light-reducing properties, or the base material contains an additive having light-reducing properties.

[0036] The parallax barrier 6 may be composed of a liquid crystal shutter. The liquid crystal shutter may be configured to control the light transmittance in response to an applied voltage. The liquid crystal shutter may be composed of a plurality of pixels and configured to control the light transmittance of each pixel. The liquid crystal shutter may be configured to form an area with high light transmittance or an area with low light transmittance in any shape. When the parallax barrier 6 is composed of a liquid crystal shutter, the light transmitting area 62 may be an area having a transmittance equal to or higher than a first predetermined value. When the parallax barrier 6 is composed of a liquid crystal shutter, the light reducing surface 61 may be an area having a transmittance equal to or lower than a second predetermined value.

[0037] With this configuration, the parallax barrier 6 is configured to transmit image light emitted from some of the sub-pixels in the active area 51 through the light-transmitting area 62 to the right eye of the user. The image light is propagated to the left eye of the user through the light-transmitting region 62. The image visually recognized by the user's eyes as a result of the image light being propagated to each of the user's left and right eyes will be described in detail with reference to FIG.

[0038] The left visible regions 51aL are regions on the active area 51 that are viewed by the left eye of the user. Image light emitted by sub-pixels in the left visible regions 51aL can reach the left eye of the user through the light-transmitting regions 62 of the parallax barrier 6. The left invisible regions 51bL are regions on the active area 51 that are not viewed by the left eye of the user. Image light emitted by sub-pixels in the left invisible regions 51bL is blocked by the light-reducing surfaces 61 of the parallax barrier 6. The left visible region 51aL includes half of the sub-pixel P1, all of the sub-pixels P2 to P5, half of the sub-pixel P6, half of the sub-pixel P7, and half of the sub-pixel P12.

[0039] The right visible regions 51aR shown in FIG. 4 are regions on the active area 51 that are viewed by the right eye of the user. Image light emitted by the sub-pixels in the right visible regions 51aR can reach the right eye of the user after passing through the light-transmitting regions 62 of the parallax barrier 6. The right invisible regions 51bR are regions that cannot be viewed by the right eye of the user. The image light emitted by the sub-pixels in the right invisible regions 51bR is blocked by the light-reducing surfaces 61 of the parallax barrier 6. The right visible region 51aR includes half of the sub-pixel P1, half of the sub-pixel P6, half of the sub-pixel P7, all of the sub-pixels P8 to P11, and half of the sub-pixel P1.

[0040] The multiple binocular visible regions 51aLR are regions where the multiple left visible regions 51aL and the multiple right visible regions 51aR overlap. Image light emitted by multiple sub-pixels in the multiple binocular visible regions 51aLR can reach the right and left eyes of the user after passing through the multiple light-transmitting regions 62 of the parallax barrier 6. When the user is positioned at the optimal viewing distance d, if the aperture ratio of the parallax barrier 6 is 50% or more, multiple binocular visible regions 51aLR are always generated. The aperture ratio of the parallax barrier 6 can be calculated as the width of the aperture region 62 relative to the barrier pitch Bp. The width of the binocular visible region can be shorter than the horizontal length Hp of the sub-pixel.

[0041] When a left eye image is displayed on the sub-pixels P1 to P6 and a right eye image is displayed on the sub-pixels P7 to P12, the left eye and the right eye respectively view the images. The right eye image and the left eye image are parallax images having a mutual parallax. The sub-pixels displaying the left eye image are marked with the symbol "L". The sub-pixels displaying the right eye image are marked with the symbol "R". The sub-pixels displaying a common image common to the right and left eyes are marked with the symbol "C". Whether the left image or the right eye image is displayed as the common image, crosstalk increases.

[0042] The controller 7 may be connected to each component of the three-dimensional display system 100 and configured to control each component. The components controlled by the controller 7 include the detection device 1 and the display panel 5. The controller 7 may be configured as, for example, a processor. The controller 7 may include one or more processors. The processor may include a general-purpose processor that loads a specific program and executes a specific function, and a dedicated processor specialized for a specific process. The dedicated processor may include an application specific integrated circuit (ASIC). The processor may include a programmable logic device (PLD). The PLD may include a field-programmable gate array (FPGA). The controller 7 may be configured as a system-on-a-chip (SoC) in which one or more processors work together, and a system in a package (SiP). The controller 7 may be equipped with a storage unit, and may store various information or programs for operating each component of the three-dimensional display system 100 in the storage unit. The storage unit may be configured with, for example, a semiconductor memory. The storage unit may function as a work memory for the controller 7.

[0043] The memory 8 is configured with any storage device, such as a random access memory (RAM) and a read only memory (ROM). The memory 8 stores one or more of a first table, a second table, and a third table, which will be described in detail later. The memory 8 is configured to store one or more of a fourth table, a fifth table, and a sixth table, which will be described in detail later.

[0044] The controller 7 can be configured to display a black image as a common image in the multiple binocular visible regions 51aLR. By displaying a black image in the multiple binocular visible regions 51aLR, the controller 7 can reduce substantial crosstalk to the user. With this configuration, even when the parallax separation by the parallax barrier 6 is incomplete, for example, when the aperture ratio is 50% or more, a good three-dimensional image can be provided to the user.

[0045] The controller 7 may be configured to display a black image in two sub-pixels that are on the boundary between the left visibility region 51aL and the right visibility region 51aR in one sub-pixel group Pg. The binocular visibility region 51aLR is on the boundary between the right visibility region 51aR and the left visibility region 51aL. The controller 7 may reduce substantial crosstalk to the user.

[0046] The controller 7 may be configured to display a black image in the sub-pixels at both ends along the horizontal direction of the right and left visible regions 51aR, 51aL. The controller 7 may substantially reduce crosstalk between adjacent sub-pixel groups Pg.

[0047] If the length along the horizontal direction of the binocular visible region is shorter than the length Hp along the horizontal direction of the subpixel, crosstalk due to light diffraction can be reduced when a black image is displayed in the binocular visible region.

[0048] Although the above-mentioned embodiment has been described as a representative example, it is obvious to those skilled in the art that many modifications and substitutions can be made within the spirit and scope of the present invention. Therefore, the present invention should not be interpreted as being limited by the above-mentioned embodiment, and various modifications and changes are possible without departing from the scope of the claims. For example, it is possible to combine multiple building blocks described in the embodiment and examples into one, or to divide one building block.

[0049] As shown in FIG. 5, the three-dimensional display system 100 may be mounted on a head-up display system 400. The head-up display system 400 may also be referred to as a HUD (Head Up Display) 400. The HUD 400 includes the three-dimensional display system 100, an optical member 410, and a projection target member 420 having a projection surface 430. The HUD 400 causes the image light emitted from the three-dimensional display system 100 to reach the projection target member 420 via the optical member 410. The HUD 400 causes the image light reflected by the projection target member 420 to reach the left and right eyes of the user. That is, the HUD 400 causes the image light to travel from the three-dimensional display system 100 to the left and right eyes of the user along an optical path 440 indicated by a dashed line. The user may visually recognize the image light that has arrived along the optical path 440 as a virtual image 450.

[0050] As shown in FIG. 6, a HUD 400 including the three-dimensional display system 200 may be mounted on a moving object 10. The HUD 400 may share a part of its configuration with other devices and components that the moving object 10 includes. For example, the moving body 10 may use the windshield as the projection member 420. When a part of the configuration is used in combination with other devices or parts that the moving body 10 has, the other configuration may be called a HUD module or a three-dimensional display component. The HUD 400 and the three-dimensional display system 100 may be mounted on the moving body 10. In this disclosure, the "moving body" includes vehicles, ships, and aircraft. In this disclosure, the "vehicle" includes, but is not limited to, automobiles and industrial vehicles, and may include railroad vehicles, lifestyle vehicles, and fixed-wing aircraft that run on runways. Automobiles include, but are not limited to, passenger cars, trucks, buses, motorcycles, and trolley buses, and may include other vehicles that run on roads. Industrial vehicles include industrial vehicles for agriculture and construction. Industrial vehicles include, but are not limited to, forklifts and golf carts. Industrial vehicles for agriculture include, but are not limited to, tractors, cultivators, transplanters, binders, combines, and lawnmowers. Industrial vehicles for construction include, but are not limited to, bulldozers, scrapers, excavators, cranes, dump trucks, and road rollers. Vehicles include those that are driven by human power. The classification of vehicles is not limited to the above. For example, automobiles may include industrial vehicles that can run on roads, and the same vehicle may be included in multiple classifications. Marine vessels in this disclosure include marine jets, boats, and tankers. Aircraft in this disclosure include fixed-wing aircraft and rotary-wing aircraft. [Explanation of symbols]

[0051] 1. Detection device 2 3D display device 3 Acquisition part 4 Irradiator 5 Display Panel 6 Parallax Barrier 7 Controller 8. Memory 10 Mobile 51 Active Area 51aL Left visible area 51aR Right visible area 51aLR Binocular Visibility Area 61 Light-reducing surface 62 Translucent area 100 3D Display System 400 Head-up Display System 410 Optical components 420 Projected member 430 Projection surface 440 Light path 450 Virtual Image

Claims

1. a display panel having an active area in which a plurality of sub-pixels are arranged, the display panel being configured to display a parallax image in the active area; an optical panel in which a plurality of light-reducing surfaces and a plurality of light-transmitting regions are alternately arranged in a parallax direction; a controller configured to control the display panel; The active area has a plurality of first visible regions that emit image light propagating to a first eye of a user, a plurality of second visible regions that emit image light propagating to a second eye of the user, and a plurality of binocular visible regions that emit image light propagating to the first eye and the second eye, a first width of each of the light-transmitting regions along the parallax direction is greater than a second width of each of the light-reducing surfaces along the parallax direction; In the active area viewed by a user at an appropriate viewing distance, a width of the binocular visible region along the parallax direction is narrower than a width of one of the subpixels, The controller is capable of controlling the display panel to parallax-separate the parallax image by displaying a black image in sub-pixels at both ends along the parallax direction of each of the plurality of first visible regions, and displaying a black image in sub-pixels at both ends along the parallax direction of each of the plurality of second visible regions.

2. A detection device for detecting a position of a first eye of a user and a position of a second eye different from the first eye; a display panel having an active area in which a plurality of sub-pixels are arranged, the display panel being configured to display a parallax image in the active area; an optical panel in which a plurality of light-attenuating surfaces and a plurality of light-transmitting areas are repeatedly arranged alternately in a parallax direction; and a controller configured to control the display panel, the active area having a plurality of first visible areas that emit image light propagating to a first eye of a user, a plurality of second visible areas that emit image light propagating to a second eye of the user, and a plurality of binocular visible areas that emit image light propagating to the first eye and the second eye, a width of the binocular visible area along the parallax direction that is greater than each second width of the plurality of dimming surfaces, and in the active area as viewed by a user at an appropriate viewing distance, a width of the binocular visible area along the parallax direction that is narrower than a width of one of the subpixels, and the controller is capable of controlling the display panel to parallax separate the parallax images by displaying a black image in subpixels at both ends along the parallax direction of each of the plurality of first visible areas and displaying a black image in subpixels at both ends along the parallax direction of each of the plurality of second visible areas.

3. a display panel having an active area in which a plurality of sub-pixels are arranged, the display panel being configured to display a parallax image in the active area; an optical panel in which a plurality of light-attenuating surfaces and a plurality of light-transmitting areas are repeatedly arranged alternately in a parallax direction; and a controller configured to control the display panel, the active area having a plurality of first visible areas that emit image light propagating to a first eye of a user, a plurality of second visible areas that emit image light propagating to a second eye of the user, and a plurality of binocular visible areas that emit image light propagating to the first eye and the second eye, the plurality of light-transmitting areas being arranged in a parallax direction along the parallax direction of the plurality of light-transmitting areas. a first width of each of the plurality of first visible areas in the parallax direction is greater than a second width of each of the plurality of dimming surfaces in the parallax direction, and in the active area viewed by a user at an appropriate viewing distance, a width of the binocular visible area in the parallax direction is narrower than a width of one of the subpixels, and the controller is capable of controlling the display panel to parallax separate the parallax images by displaying a black image in subpixels at both ends of each of the plurality of first visible areas in the parallax direction and displaying a black image in subpixels at both ends of each of the plurality of second visible areas in the parallax direction.

Images