CN117295629A - display device - Google Patents

display device Download PDF

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Publication number
CN117295629A
CN117295629A CN202280034730.6A CN202280034730A CN117295629A CN 117295629 A CN117295629 A CN 117295629A CN 202280034730 A CN202280034730 A CN 202280034730A CN 117295629 A CN117295629 A CN 117295629A
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CN
China
Prior art keywords
display
unit
display device
image
illuminance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202280034730.6A
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Chinese (zh)
Inventor
白井贵博
小野泰弘
稲垣裕
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Tokai Rika Co Ltd
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Tokai Rika Co Ltd
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Filing date
Publication date
Application filed by Tokai Rika Co Ltd filed Critical Tokai Rika Co Ltd
Publication of CN117295629A publication Critical patent/CN117295629A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/50—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels
    • G02B30/56—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels by projecting aerial or floating images

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Instrument Panels (AREA)

Abstract

A display device is provided. The display device (1) is provided with: a display unit (2) that displays a display image (21) on a display screen (20); an optical path changing unit (3) that changes an optical path (26) of light (25) output from the display screen (20) and images the light in a display area (35) in the air, thereby generating an aerial image (36) based on the display image (21); and a driving unit (4) that drives the display unit (2) to a 1 st position (11) and a 2 nd position (12), wherein the display image (21) is directly presented to the user at the 1 st position (11), and wherein the display image (21) is directed to the optical path changing unit (3) at the 2 nd position (12) to present an aerial image (36) to the user.

Description

Display device
Cross Reference to Related Applications
The present application claims priority from japanese patent application No. 2021-083328, filed 5/17/2021, and the entire contents of japanese patent application No. 2021-083328 are incorporated herein by reference.
Technical Field
The present invention relates to a display device.
Background
A display device is known which is disposed in an instrument panel of a vehicle and includes a storable display (for example, see patent document 1).
The display device is stored in the housing and covered by the cover when not in use, and the cover is slid to the upper side and the display is unfolded from the housing when in use.
Patent document 1: japanese patent laid-open No. 2007-126135
The display device disclosed in patent document 1 may obstruct the front view due to the display, or give a feeling of cramp to the occupant, and if the display is stored when not in use as a countermeasure, there is a problem in that the necessary information cannot be viewed, and convenience is lowered.
Disclosure of Invention
The invention aims to provide a display device capable of improving convenience.
A display device according to an embodiment of the present invention includes: a display unit that displays a display image on a display screen; an optical path changing unit that changes an optical path of light output from the display screen and images the light in a display area in the air, thereby generating an air image based on the display image; and a driving unit that drives the display unit to a 1 st position and a 2 nd position, wherein the display unit directly presents the display image to the user at the 1 st position, and wherein the display image is directed to the optical path changing unit at the 2 nd position to present aerial imaging to the user.
According to an embodiment of the present invention, a display device with improved convenience can be provided.
Drawings
Fig. 1A is an explanatory diagram showing a display screen of a display unit of the display device according to embodiment 1.
Fig. 1B is an explanatory diagram showing aerial imaging according to embodiment 1.
Fig. 1C is a block diagram showing a display device according to embodiment 1.
Fig. 2A is an explanatory diagram schematically showing a state in which the display device according to embodiment 1 is at the 1 st position.
Fig. 2B is an explanatory diagram schematically showing a state in which the display device according to embodiment 1 is at the 2 nd position.
Fig. 3A is an explanatory diagram schematically showing a state in which the display device according to the modification is at the 1 st position.
Fig. 3B is an explanatory diagram schematically showing a state in which the display device according to the modification is at the 2 nd position.
Fig. 4 is a flowchart showing the operation of the display device according to embodiment 1.
Fig. 5A is an explanatory diagram schematically showing a state in which the display device according to embodiment 2 is at the 1 st position.
Fig. 5B is an explanatory diagram schematically showing a state in which the display device according to embodiment 2 is at the 2 nd position.
Fig. 6A is an explanatory diagram schematically showing a state in which the display device according to embodiment 3 is at the 1 st position.
Fig. 6B is an explanatory diagram schematically showing a state in which the display device according to embodiment 3 is at the 2 nd position.
Detailed Description
(gist of embodiment)
The display device according to the embodiment includes: a display unit that displays a display image on a display screen; an optical path changing unit that changes an optical path of light output from the display screen and images the light in a display area in the air, thereby generating an air image based on the display image; and a driving unit that drives the display unit to a 1 st position and a 2 nd position, wherein the display unit directly presents the display image to the user at the 1 st position, and wherein the display image is directed to the optical path changing unit at the 2 nd position to present aerial imaging to the user.
Since the display device presents the display image to the user at the 1 st position and presents the aerial image to the user at the 2 nd position, the presentation of the display image is less susceptible to the influence of the ambient light than the presentation of the aerial image, and the display image is easily observed, so that the presentation of the aerial image can be suppressed from giving the user a sense of confusion or obstructing the view of the field of view than the presentation of the display image. Therefore, the display device can improve convenience.
[ embodiment 1 ]
(outline of display device 1)
Fig. 1A is an explanatory view showing a display screen of a display section, fig. 1B is an explanatory view showing aerial imaging, and fig. 1C is a block diagram of a display device. Fig. 2A is an explanatory diagram schematically showing a state in which the display device is at the 1 st position, and fig. 2B is an explanatory diagram schematically showing a state in which the display device is at the 2 nd position. In fig. 2A and 2B, the left side of the paper is the user side. In the drawings according to the embodiments described below, the ratio between the drawings may be different from the actual ratio. In fig. 1C, the flow of the main signal and information is shown by arrows. The vertical and horizontal directions of the vehicle 8 are based on the vertical and horizontal directions of the vehicle 8, unless otherwise specified.
As an example, as shown in fig. 1A and 1B, the display device 1 is mounted on the vehicle 8 and is disposed near the center of a control panel 80 between the driver seat and the passenger seat. The display device 1 is not limited to being disposed near the center of the control panel 80, and may be disposed at other positions of the control panel 80, may be disposed at positions other than the control panel 80, and may be disposed at positions other than the vehicle 8.
As shown in fig. 1A, 1B, and 1C, the display device 1 of the present embodiment is configured to display an image required by the device to be controlled 85. The device to be controlled 85 is a navigation device, an air conditioner, a music and video player, a vehicle controller, or the like mounted on the vehicle 8, and is a mobile terminal or the like connected by a wired or wireless system.
The vehicle control device performs, for example, integrated control of the vehicle 8, and causes the display device 1 to display an image related to warning, an image related to automatic driving, an image related to setting of the vehicle 8, and the like. The mobile terminal is, for example, a mobile personal computer, a smart phone, a tablet terminal, a smart watch, etc. The image is an image such as a graphic, a symbol, or a character, and an image obtained by combining these images.
As shown in fig. 2A and 2B, the display device 1 includes: a display unit 2 for displaying a display image 21 on a display screen 20; an optical path changing unit 3 that changes an optical path 26 of the light 25 outputted from the display screen 20 to image a display area 35 in the air, and generates an aerial image 36 based on the display image 21; and a driving unit 4 for driving the display unit 2 to the 1 st position 11 and the 2 nd position 12, directly presenting the display image 21 to the user at the 1 st position 11, and presenting the aerial image 36 to the user by directing the display image 21 to the optical path changing unit 3 at the 2 nd position 12.
The display device 1 includes a housing 10, and the housing 10 rotatably supports the display unit 2 and enables the front surface portion 100 on the user side to be opened and closed. The housing 10 is disposed on a control board 80. In addition, the housing 10 is configured such that an upper portion is exposed at the control board 80. The display device 1 can secure a moving path of the display unit 2 by opening and closing the front surface portion 100. The front surface portion 100 of the display device 1 can hide the space of the storage display portion 2 when the display image 21 is displayed.
The display section 2 has a rotation shaft 23 at a lower end 22 in the left-right direction of the display screen 20. As shown in fig. 2A and 2B, the driving unit 4 is configured to open the front surface portion 100 of the housing 10 to rotate the display unit 2 to the 2 nd position 12 about the rotation shaft 23 when the display unit 2 is driven from the 1 st position 11 to the 2 nd position 12, close the front surface portion 100, and to open the front surface portion 100 to rotate the display unit 2 to the 1 st position 11 about the rotation shaft 23 when the display unit 2 is driven from the 2 nd position 12 to the 1 st position 11, and close the front surface portion 100.
As shown in fig. 1A and 1B, the display device 1 includes: an illuminance measuring unit 5 for measuring illuminance around the display unit 2; and a control unit 7 that controls the driving unit 4 to switch between the 1 st position 11 and the 2 nd position 12 of the display unit 2 based on the illuminance measured by the illuminance measuring unit 5.
As shown in fig. 1C, the display device 1 includes an operation detection unit 6, and the operation detection unit 6 detects an operation performed by a detection target with respect to the aerial image 36. The control unit 7 is configured to output operation information S for executing a function assigned to the operation target image when an operation for the operation target image included in the aerial image 36 is detected based on the detection result of the operation detection unit 6 6 。
As an example, fig. 1A and 1B show a rectangular operation target image 15. The operation target image 15 is assigned with the function of the device to be controlled 85. When the user touches the operation target image 15 of the desired function with the operation finger 9 to be detected, the device to be controlled 85 can execute the desired function.
(Structure of display section 2)
The display unit 2 is, for example, a touch panel that receives a touch operation or the like, but is not limited thereto, and may be constituted by a display alone. As an example, the display unit 2 includes: an organic EL (Electro-Luminescence) display that displays the display image 21, and a touch sensor that detects a touch operation or the like with respect to the display image 21. The display unit 2 may be a liquid crystal display or the like. As an example, the touch sensor is a capacitive touch sensor, and is configured by using a plurality of transparent electrodes intersecting each other.
As shown in fig. 1C, the display section 2 is based on the display information S output from the control section 7 1 And the display image 21 is displayed. The display information S 1 The control unit 7 is based on the image information S obtained from the device to be controlled 85 7 And information of the generated image displayed on the display unit 2.
In addition, in the case where contact of the operation finger 9 is detected, the display section 2 will display detection information S including information of coordinates of the detected contact on the screen 20 2 Output to the control unit 7.
As shown in fig. 2A, the display unit 2 of the present embodiment stands upright at the 1 st position 11, but the present invention is not limited thereto, and a position inclined in correspondence with the display area 35 in which the aerial image 36 is displayed may be set as the 1 st position 11. The display unit 2 may be supported so that the inclination angle can be changed by the user.
(Structure of light path changing section 3)
As shown in fig. 2A and 2B, the optical path changing unit 3 of the present embodiment includes: a retroreflective member 30 that reflects the incident light 25 in a direction parallel to the incident direction; and a beam splitter 31 that transmits a part of the incident light 25 and reflects the remaining part. The display section 2 outputs the light 25 from the display screen 20 to the retroreflective member 30 and the beam splitter 31 at the 2 nd position 12 shown in fig. 2B.
The retroreflective member 30 is a prismatic or beaded retroreflective element. As an example, the retroreflective member 30 of the present embodiment is a bead-type retroreflective element. In the retroreflective member 30, a plurality of tiny ball lenses having a refractive index of about 2 are arranged in a longitudinal and transverse direction of the incident surface 300.
As shown in fig. 2A and 2B, the retroreflective member 30 is disposed at an angle of about 90 ° to the display portion 2 of the 2 nd position 12. Further, the angle between the retroreflective member 30 and the display section 2 is not limited to 90 °.
As shown in fig. 2A and 2B, the spectroscope 31 includes: an incidence surface 310 on which the light 25 is incident; and an emission surface 311 which is a surface on the back side of the incidence surface 310 and from which the light 25 is emitted. As an example, the beam splitter 31 has a reflective film formed of a thin film of silver or aluminum on the incident surface 310.
The beam splitter 31 reflects a part of the light 25 incident on the incident surface 310, and emits the remaining part from the emission surface 311 to the display area 35.
The beam splitter 31 is disposed at the upper portion of the housing 10, and the emission surface 311 is exposed at the upper surface 800 of the control board 80. The display screen 20 and the display area 35 of the display unit 2 at the 2 nd position 12 are in a plane-symmetrical relationship with respect to the beam splitter 31 as a symmetry plane. In other words, the display screen 20 and the display area 35 are rotationally symmetrical about a straight line passing through the center of the spectroscope 31 on the paper surface of fig. 2B.
The beam splitter 31 may apply a coloring treatment to the emission surface 311 to suppress the transmittance of light so that the inside of the housing 10 is not easily seen.
For display image 21 and aerial imaging 36
The optical path 26 of the light 25 emitted from the display screen 20 of the display unit 2 in the 2 nd position 12 is first changed by the spectroscope 31. Then, part of the light 25 entering the entrance surface 310 of the beam splitter 31 is reflected in the direction of the retroreflective member 30, and the optical path 26 is changed.
Then, the light 25 incident on the incident surface 300 of the retroreflective member 30 is parallel to the incident light 25 and reflected in the opposite direction, and the optical path 26 is changed. The light 25 reflected by the retroreflective member 30 is incident on the incident surface 310 of the beam splitter 31, and a part of the light is transmitted through the incident surface 311 and is emitted from the incident surface to be condensed, thereby generating an aerial image 36 in the display area 35.
The solid arrow on the display unit 2 side shown in fig. 2B is a display image 21 displayed on the display unit 2. In addition, the solid arrow on the display area 35 side shown in fig. 2B is an aerial image 36 displayed in the display area 35. Further, as an example, the direction of the arrow shows the orientation of the displayed image.
The display image 21 displayed on the display screen 20 at the 1 st position 11 is an image of the same orientation as the aerial image 36 displayed on the display area 35 at the 2 nd position 12, and therefore, the display section 2 does not need to flip the display image 21 at the 1 st position 11 and the 2 nd position 12.
The position of the aerial image 36 is mainly determined by the positions of the display section 2 and the beam splitter 31. Therefore, as an example, in the case where the aerial image 36 is tilted from the paper surface position of fig. 2B to the user side, in other words, tilted around the counterclockwise direction, the display unit 2 and the spectroscope 31 may be moved around the counterclockwise direction.
(Structure of drive section 4)
The driving unit 4 is configured to independently drive the display unit 2 and the front surface unit 100, and includes a motor and a gear, for example. The driving unit 4 is connected to the control unit 7, and based on the driving signal S output from the control unit 7 3 And drives the display section 2 and the front surface section 100.
As shown in FIG. 2B, the driving signal S is based on 3 When the display section 2 is driven from the 1 st position 11 to the 2 nd position 12, the driving section 4 first causes the front surface section to beWhen 100 rotates counterclockwise about the rotation axis 101, the display unit 2 rotates counterclockwise about the rotation axis 23. Then, the driving unit 4 rotates the display unit 2 to the 2 nd position 12, and then rotates the front surface unit 100 in the clockwise direction. The rotation axis 101 of the front surface portion 100 is parallel to the rotation axis 23 of the display portion 2.
As an example, the angle from the 1 st position 11 to the 2 nd position 12 is 225 °, but the present invention is not limited thereto. As shown in fig. 2B, the opening 102 formed when the front surface portion 100 is opened has a size such that the display portion 2 can be rotated. Further, the display device 1 may be provided with a stopper for defining the 2 nd position 12 of the display unit 2.
As shown in FIG. 2B, the driving signal S is based on 3 When driving the display unit 2 from the 2 nd position 12 to the 1 st position 11, the driving unit 4 first rotates the front surface portion 100 about the rotation axis 101 in the counterclockwise direction, and then rotates the display unit 2 about the rotation axis 23 in the clockwise direction. Further, the driving unit 4 rotates the front surface portion 100 in the clockwise direction after rotating the display unit 2 to the 1 st position 11.
The front surface portion 100 is not limited to the rotation, and may be configured to slide in the left-right direction or slide in the up-down direction.
(Structure of illuminance measuring part 5)
As shown in fig. 1A and 1B, the illuminance measuring unit 5 is disposed on the upper surface 10a of the housing 10 near the display unit 2 and the display area 35. The illuminance measuring unit 5 may be disposed on the upper surface 800 of the control board 80 near the display unit 2 and the display area 35.
The illuminance measuring unit 5 is an illuminance sensor configured using, for example, a photodiode. The illuminance measuring unit 5 measures illuminance information S including information of the measured illuminance 4 Output to the control unit 7.
In the case where the illuminance measuring unit 5 is not provided, the display device 1 may be configured to have a switch for switching between the 1 st position 11 and the 2 nd position 12, for example, in which the display unit 2 is switched to the 2 nd position 12 in a state where the headlight of the vehicle 8 is turned off and to the 1 st position 11 in a state where the headlight of the vehicle 8 is turned on.
The display device 1 may be configured to be able to switch between the 1 st position 11 and the 2 nd position 12, in other words, to switch between the presentation of the display image 21 and the presentation of the aerial image 36 by a user performing a touch operation, a press operation, or the like on the display screen 20 and the aerial image 36 displayed on the display unit 2.
(Structure of operation detecting section 6)
As an example, the operation detection unit 6 is a distance sensor that measures a distance from the display area 35 to the detection target. As shown in fig. 2A and 2B, the operation detection unit 6 is disposed on the end 312 side of the beam splitter 31, which is far from the display unit 2, and on the upper surface 10a of the housing 10, but the operation detection unit is not limited to this, and may be the upper surface 800 of the control board 80. The operation detection unit 6 is not limited to the distance sensor, and may be configured to detect an operation performed on the aerial image 36 by the detection object by a camera that captures an image of the display area 35.
The operation detection unit 6 measures the position of the display area 35 contacted by the operation finger 9 based on the distance from the display area 35 to the operation finger 9 as the detection target, and detects operation detection information S including information of the position 5 Output to the control unit 7. The operation detection unit 6 detects a sliding operation, a touch operation, or the like performed on the display area 35, or a flick by hand performed in the vicinity of the display area 35, or detects a gesture such as drawing a specific pattern, and detects operation detection information S including information of the gesture 5 Output to the control unit 7.
(Structure of control section 7)
The control unit 7 is, for example, a microcomputer including CPU (Central Processing Unit) for performing calculation, processing, and the like on acquired data according to a stored program, RAM (Random Access Memory) and ROM (Read Only Memory) as semiconductor memories, and the like. The ROM stores, for example, a program for operating the control unit 7. The RAM is used as a storage area for temporarily storing the operation result or the like, for example.
The control unit 7 has an illuminance threshold 70. The control unit 7 presents the display image 21 of the display unit 2 to the user when the illuminance measured by the illuminance measuring unit 5 is equal to or higher than the illuminance threshold 70, and presents the aerial image 36 to the user when the measured illuminance is lower than the illuminance threshold 70.
As an example, the display device 1 displays the aerial image 36 when the user turns on the power of the vehicle 8, but the present invention is not limited thereto, and may be set by the user, or may be determined based on the illuminance at the time of turning on the power of the vehicle 8.
The control section 7 is based on the image information S obtained from the device to be controlled 85 7 And causes the display section 2 to display the display image 21. The control unit 7 is based on the operation detection information S obtained from the operation detection unit 6 5 And image information S obtained from the device to be controlled 85 7 To determine the operation target image 15 of the aerial image 36 on which the operation is performed.
The control unit 7 generates the result of the determination and outputs the result to the device to be controlled 85, that is, when the operation target image 15 is operated, generates operation information S including information of the operated operation target image 15 6 And output to the device to be controlled 85. The device to be controlled 85 performs assignment based on the acquired operation information S 6 And a function of the operation target image 15 in which the operation is performed.
When the illuminance is smaller than the illuminance threshold 70 and the displayed image is an image of a content that is prioritized over ensuring a forward visual field, the control unit 7 does not present the aerial image 36, but preferentially presents the displayed image 21 based on the display unit 2. The control unit 7 displays the aerial image 36 when the illuminance is smaller than the illuminance threshold 70 and the image is an image having no content that is prioritized over ensuring the forward visual field.
(for modification)
Fig. 3A is an explanatory diagram schematically showing a state in which the display device according to the modification is at the 1 st position, and fig. 3B is an explanatory diagram schematically showing a state in which the display device is at the 2 nd position.
In this modification, the optical path changing unit 3 is not constituted by the retroreflective member 30 and the beam splitter 31, but is constituted by the imaging member 32 which emits the light 25 of the display unit 2 incident on the incident surface 320 from the emitting surface 321 and forms an image as the aerial image 36 in the display area 35. As shown in fig. 3A and 3B, the imaging member 32 is configured such that the exit surface 321 is exposed at the upper surface 10a of the housing 10.
The imaging member 32 is constituted, for example, by a plurality of micromirrors, a plurality of micropores, a plurality of double-sided reflectors, and the like. As an example, the imaging member 32 of the present embodiment is constituted by fabricating micromirrors formed by combining right angles on the side surfaces of the holes and arranging the micromirrors vertically and horizontally.
As shown in fig. 3B, the imaging member 32 images the aerial image 36 at a position that is plane-symmetrical with respect to the imaging member 32 as a plane of symmetry. In other words, as shown in fig. 3B, the angle α from the imaging member 32 to the display screen 20 of the display section 2 is equal to the angle α from the imaging member 32 to the display area 35.
Further, since the imaging member 32 intersects the light 25 after being emitted from the imaging member 32 as shown in fig. 3B, an aerial image 36 is generated in which the display image 21 displayed on the display section 2 is inverted. Therefore, the control unit 7 displays the display image 21 obtained by inverting the display image 21 at the 1 st position 11 at the 2 nd position 12.
An example of the operation of the display device 1 according to the present embodiment will be described below with reference to the flowchart of fig. 4. Further, the display device 1 presents the aerial image 36 after the user turns on the power of the vehicle 8.
(action)
When the control unit 7 of the display device 1 acquires the illuminance information S from the illuminance measuring unit 5 4 (step 1), the illumination information S will be based on 4 Is compared to an illuminance threshold 70.
When the illuminance is smaller than the illuminance threshold 70 (yes in step 2), the control unit 7 continues the presentation of the aerial image 36 (step 3).
Here, in step 2, when the illuminance is equal to or higher than the illuminance threshold value 70 (step 2: no), the control unit 7 outputs the driving signal S 3 To the driving unit 4. The driving section 4 switches from the presentation of the aerial image 36 to the presentation of the display image 21 (step 4).
The driving unit 4 is based on the acquired driving signal S 3 After the front surface portion 100 is rotated about the rotation shaft 101 as an axis in the counterclockwise direction, the display portion 2 is rotated about the rotation shaft 23 as an axis in the clockwise direction. Further, the driving section 4 rotates the front surface section 100 in the clockwise direction after rotating the display section 2 to the 1 st position 11.
The control unit 7 may continue to display the display image 21 even if the illuminance is smaller than the illuminance threshold 70 after switching from the aerial image 36 to the display image 21, or may continue to display the display image 21 for a predetermined time or may switch to the aerial image 36 if the illuminance is smaller than the illuminance threshold 70 after that.
(effects of embodiment 1)
The display device 1 according to the present embodiment can improve convenience. Specifically, since the display device 1 presents the display image 21 to the user at the 1 st position 11 and presents the aerial image 36 to the user at the 2 nd position 12, the display image 21 is easier to see than the aerial image 36, and the aerial image 36 can be suppressed from giving the user a feeling of being more cursory than the display image 21, or from interfering with the field of view, than the case where the structure is not employed. Therefore, the display device 1 can improve convenience.
Since the display device 1 is configured as a touch panel that receives a touch operation or the like and includes the operation detection unit 6 that detects a touch operation or the like with respect to the aerial image 36, the display device 1 does not need to further include an operation unit, and is high in operability while suppressing costs, as compared with a case where the configuration is not employed.
The display device 1 can switch between the presentation of the display image 21 and the presentation of the aerial image 36 by one display, and therefore, the cost is suppressed compared with the case where a plurality of displays are provided.
[ embodiment 2 ]
Embodiment 2 differs from the other embodiments in that the display unit 2 and the spectroscope 31 are rotated.
Fig. 5A is an explanatory diagram schematically showing a state in which the display device is at the 1 st position, and fig. 5B is an explanatory diagram schematically showing a state in which the display device is at the 2 nd position. In the embodiments described below, the same reference numerals as those in embodiment 1 are given to parts having the same functions and structures as those in embodiment 1, and the description thereof is omitted.
As shown in fig. 5A and 5B, the display device 1 includes a housing 10, and the housing 10 rotatably supports the display unit 2 and openably and closably supports the optical path changing unit 3. The display section 2 has a rotation shaft 23 at a lower end 22 in the left-right direction of the display screen 20. The driving unit 4 turns on the optical path changing unit 3 to rotate the display unit 2 to the 2 nd position 12 about the rotation axis 23 when driving the display unit 2 from the 1 st position 11 to the 2 nd position 12, and turns off the optical path changing unit 3 after turning on the optical path changing unit 3 to rotate the display unit 2 to the 1 st position 11 about the rotation axis 23 when driving the display unit from the 2 nd position 12 to the 1 st position 11.
The optical path changing unit 3 includes a retroreflective member 30 and a beam splitter 31. The openable/closable optical path changing unit 3 of the present embodiment is a spectroscope 31. The beam splitter 31 is configured to rotate about a rotation axis 313 provided at an end 312 remote from the display unit 2. The rotation axis 313 is parallel to the rotation axis 23 of the display section 2. In the display device 1, the opening 103 is formed by rotating the spectroscope 31, and the display section 2 is rotatable. The structure of the spectroscope 31 is not limited to rotation, and the spectroscope 31 may be configured to slide in the left-right direction.
As shown in fig. 5B, the driving unit 4 is based on the driving signal S 3 When the display unit 2 is driven from the 1 st position 11 to the 2 nd position 12, the spectroscope 31 is first rotated about the rotation axis 313 in the clockwise direction, and then the display unit 2 is rotated about the rotation axis 23 in the clockwise direction. Then, the driving unit 4 rotates the display unit 2 to the 2 nd position 12, and thereafter, rotates the spectroscope 31 in the counterclockwise direction. Further, the display device 1 may be provided with a stopper for defining the 2 nd position 12 of the display unit 2. In addition, the display device 1 may be provided with a stopper for limiting the state in which the spectroscope 31 is turned off.
In addition, as shown in FIG. 5BAs shown, the driving unit 4 is based on the driving signal S 3 When the display unit 2 is driven from the 2 nd position 12 to the 1 st position 11, the spectroscope 31 is first rotated about the rotation axis 313 in the clockwise direction, and then the display unit 2 is rotated about the rotation axis 23 in the counterclockwise direction. Then, the driving unit 4 rotates the display unit 2 to the 1 st position 11, and thereafter rotates the spectroscope 31 in the counterclockwise direction.
As a modification, the optical path changing unit 3 may be constituted by the imaging member 32 in the same manner as in the modification described above. Like the spectroscope 31, the imaging member 32 has a rotation axis at an end portion distant from the display portion 2.
In this modification, the driving unit 4 is based on the driving signal S 3 When the display unit 2 is driven from the 1 st position 11 to the 2 nd position 12, the imaging member 32 is first rotated about the rotation axis in the clockwise direction, and then the display unit 2 is rotated about the rotation axis 23 in the clockwise direction. Further, the driving section 4 rotates the imaging member 32 around the counterclockwise direction after rotating the display section 2 to the 2 nd position 12.
The driving unit 4 is based on the driving signal S 3 When the display unit 2 is driven from the 2 nd position 12 to the 1 st position 11, the imaging member 32 is first rotated about the rotation axis in the clockwise direction, and then the display unit 2 is rotated about the rotation axis 23 in the counterclockwise direction. Further, the driving section 4 rotates the imaging member 32 around the counterclockwise direction after rotating the display section 2 to the 1 st position 11.
(effects of embodiment 2)
In the display device 1 of the present embodiment, the user does not easily see the space storing the display unit 2, in other words, the inside of the case 10 is not easily seen when the user switches between the 1 st position 11 and the 2 nd position 12 because the light splitter 31 is turned on and off and the display unit 2 rotates in the direction of the light splitter 31 of the vehicle 8.
[ embodiment 3 ]
Embodiment 3 differs from the other embodiments in that the display section is slid to the 2 nd position after being rotated at the 1 st position.
Fig. 6A is an explanatory diagram schematically showing a state in which the display device is at the 1 st position, and fig. 6B is an explanatory diagram schematically showing a state in which the display device is at the 2 nd position.
As shown in fig. 6A and 6B, the driving unit 4 of the present embodiment is configured to rotate the display unit 2 by 180 ° at the 1 st position 11 so that the display screen 20 is on the opposite side, and further to move the display unit 2 to the 2 nd position 12.
As shown in fig. 6A and 6B, the display section 2 has a rotation axis 23 and a rotation axis 24 in a direction intersecting the rotation axis 23. The rotation axis 24 is an axis for turning the display screen 20 from the user side to the windshield 83 side of the vehicle 8.
As an example, as shown in fig. 6B, the driving unit 4 of the present embodiment rotates at the 1 st position 11 so that the display screen 20 is on the opposite side, and then rotates to the 3 rd position 13 about the rotation shaft 23 as the axis, and slides the display unit 2 from the 3 rd position 13 into the case 10 and moves to the 2 nd position 12. As shown in fig. 6A and 6B, the housing 10 is provided with an opening 104 through which the display unit 2 can slide.
The 3 rd position 13 is a position determined based on the 2 nd position 12. As an example, the angle from the 1 st position 11 to the 3 rd position 13 is 45 °, but the present invention is not limited thereto.
The display unit 2 slides linearly from the 3 rd position 13 to the 2 nd position 12. The slide guide 16 shown in fig. 6A and 6B guides the sliding of the display section 2 from the 3 rd position 13 to the 2 nd position 12. In addition, the sliding guide 16 has a stop 17 at the end, which stop 17 defines the 2 nd position 12 of the display 2.
As shown in fig. 6B, the driving unit 4 is based on the driving signal S 3 When the display unit 2 is driven from the 1 st position 11 to the 2 nd position 12, first, the display unit 2 is rotated 180 ° about the rotation axis 24 at the 1 st position 11, and the display screen 20 is set to the windshield 83 side. Next, the driving unit 4 rotates the display unit 2 around the rotation shaft 23 in the counterclockwise direction, and then causes the slide guide 16 to guide the display unit 2 to slide to the 2 nd position 12.
As shown in fig. 6B, the driving section 4 is at the baseIn the driving signal S 3 When the display unit 2 is driven from the 2 nd position 12 to the 1 st position 11, the display unit 2 is first moved along the slide guide 16 from the 2 nd position 12 to the 3 rd position 13. Next, the driving unit 4 rotates the display unit 2 clockwise around the rotation shaft 23 to the 1 st position 11 at the 3 rd position 13, and further rotates the display unit 2 180 ° around the rotation shaft 24 at the 1 st position 11.
(effects of embodiment 3)
Since the opening 104 of the display device 1 of the present embodiment is smaller than when the optical path changing unit 3 rotates, intrusion of foreign matter into the case 10 is suppressed.
The display device 1 of at least one embodiment described above can improve convenience.
While the embodiments and modifications of the present invention have been described above, these embodiments and modifications are merely examples and are not intended to limit the invention described in the claims. The above-described novel embodiment and modification examples can be implemented in other various modes, and various omissions, substitutions, changes, and the like can be made without departing from the spirit of the invention. The combination of the features described in the embodiments and the modifications is not essential to the solution of the subject of the invention. The embodiments and modifications are included in the scope and spirit of the invention, and are included in the invention described in the claims and their equivalents.
Description of the reference numerals
A display device; a display section; an optical path changing unit; a drive section; an illuminance measuring unit; operation detecting section; a control unit; a housing; 11-13..1 st to 3 rd position; display screen; displaying the image; end. 23. A rotating shaft; light; optical path; retroreflective member; a beam splitter; display area; aerial imaging; front surface portion; a rotating shaft; rotation axis.

Claims (10)

1. A display device is characterized by comprising:
a display unit that displays a display image on a display screen;
an optical path changing unit that changes an optical path of light output from the display screen and images a display area in the air, thereby generating an air image based on the display image; and
and a driving unit that drives the display unit to a 1 st position and a 2 nd position, wherein the display image is directly presented to a user at the 2 nd position, and the aerial image is presented to the user by directing the display image to the optical path changing unit at the 2 nd position.
2. The display device of claim 1, wherein the display device comprises a display device,
the display device includes a housing rotatably supporting the display unit and having a front surface portion on a user side capable of being opened and closed,
the display part has a rotation axis at a lower end and in a left-right direction of the display screen,
the driving unit is configured to close the front surface portion after opening the front surface portion of the housing to rotate the display portion to the 2 nd position with the rotation shaft as an axis when driving the display portion from the 1 st position to the 2 nd position, and to close the front surface portion after opening the front surface portion to rotate the display portion to the 1 st position with the rotation shaft as an axis when driving the display portion from the 2 nd position to the 1 st position.
3. The display device of claim 1, wherein the display device comprises a display device,
the display device includes a housing rotatably supporting the display unit and openably and closably supporting the optical path changing unit,
the display part has a rotation axis at a lower end and in a left-right direction of the display screen,
the driving unit is configured to turn off the optical path changing unit after the display unit is turned on to rotate the display unit to the 2 nd position with the rotation axis as an axis when the display unit is driven from the 1 st position to the 2 nd position, and turn off the optical path changing unit after the display unit is turned on to rotate the display unit to the 1 st position with the rotation axis as an axis when the display unit is driven from the 2 nd position to the 1 st position.
4. The display device of claim 1, wherein the display device comprises a display device,
the driving unit rotates the display unit by 180 ° at the 1 st position to reverse the display screen, and further moves the display unit to the 2 nd position.
5. The display device according to any one of claims 1 to 4, wherein,
the optical path changing unit includes: a retroreflective member that reflects incident light in a direction parallel to an incident direction; and a beam splitter that transmits a part of the incident light and reflects the remaining part,
the display section outputs light from the display screen to the retroreflective member and the beam splitter at the 2 nd position.
6. The display device according to any one of claims 1 to 4, wherein,
the optical path changing section includes an imaging member that emits light incident on an incident surface from an emitting surface, and images the light in the display area as the aerial image,
the display section outputs light from the display screen to the incident surface of the imaging member at the 2 nd position.
7. The display device according to any one of claims 1 to 6, comprising:
an illuminance measuring unit that measures illuminance around the display unit; and
and a control unit that controls the driving unit to switch between the 1 st position and the 2 nd position of the display unit based on the illuminance measured by the illuminance measuring unit.
8. The display device of claim 7, wherein the display device comprises a display device,
the control unit has an illuminance threshold, and presents the display image of the display unit to the user when the illuminance measured by the illuminance measuring unit is equal to or higher than the illuminance threshold, and presents the aerial image to the user when the illuminance measured by the illuminance measuring unit is lower than the illuminance threshold.
9. The display device according to claim 7 or 8, wherein,
the display device is mounted on a vehicle and,
the control unit preferably displays the display image obtained by the display unit when the illuminance measured by the illuminance measuring unit is smaller than the illuminance threshold and the displayed image is an image of a content that is prioritized over ensuring a forward field of view, and displays the aerial image when the illuminance measured by the illuminance measuring unit is smaller than the illuminance threshold and the displayed image is an image of a content that is not prioritized over ensuring a forward field of view.
10. The display device according to any one of claims 7 to 9, wherein,
has an operation detection section that detects an operation for the aerial imaging made by a detection object,
the control unit outputs operation information for causing a function assigned to the operation target image to be executed when an operation for the operation target image included in the aerial image is detected based on a detection result of the operation detection unit.
CN202280034730.6A 2021-05-17 2022-03-30 display device Pending CN117295629A (en)

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JP2021083328A JP2022176747A (en) 2021-05-17 2021-05-17 Display device
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JP2013190448A (en) * 2010-06-30 2013-09-26 Sharp Corp Display device
JP6597536B2 (en) * 2016-09-14 2019-10-30 株式会社デンソー Aerial display device
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