WO2022024866A1 - Dispositif d'affichage, procédé d'affichage et système d'affichage - Google Patents

Dispositif d'affichage, procédé d'affichage et système d'affichage Download PDF

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Publication number
WO2022024866A1
WO2022024866A1 PCT/JP2021/027101 JP2021027101W WO2022024866A1 WO 2022024866 A1 WO2022024866 A1 WO 2022024866A1 JP 2021027101 W JP2021027101 W JP 2021027101W WO 2022024866 A1 WO2022024866 A1 WO 2022024866A1
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WO
WIPO (PCT)
Prior art keywords
image
area
dimming
display
screen
Prior art date
Application number
PCT/JP2021/027101
Other languages
English (en)
Japanese (ja)
Inventor
泰弘 小野
Original Assignee
株式会社東海理化電機製作所
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社東海理化電機製作所 filed Critical 株式会社東海理化電機製作所
Priority to CN202180060136.XA priority Critical patent/CN116134804A/zh
Priority to DE112021003952.0T priority patent/DE112021003952T5/de
Publication of WO2022024866A1 publication Critical patent/WO2022024866A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3191—Testing thereof
    • H04N9/3194—Testing thereof including sensor feedback
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0179—Display position adjusting means not related to the information to be displayed
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
    • G09G5/38—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory with means for controlling the display position
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3129—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] scanning a light beam on the display screen
    • H04N9/3135—Driving therefor
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0118—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0686—Adjustment of display parameters with two or more screen areas displaying information with different brightness or colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0464—Positioning
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2380/00—Specific applications
    • G09G2380/10—Automotive applications

Definitions

  • the present invention relates to a display device, a display method, and a display system.
  • a display system that projects an image onto a transparent screen equipped with a dimming member to display the image is well known.
  • the display system described in Patent Document 1 projects image light from a projector onto a transparent screen and visually displays it as an image to an observer on the projector side.
  • the display system visibly transmits the scene on the opposite side of the observer across the transparent screen to the observer on the projector side.
  • the display system uses a dimming member to reduce the light transmittance of the transparent screen when projecting an image.
  • the light transmittance of the screen is reduced to the extent that the projected image is projected while transmitting the scene on the opposite side, so that the screen becomes translucent. Therefore, there is a possibility that the projected image and the scene on the opposite side can be visually recognized at the same time. However, there is a concern that the translucent screen does not have sufficient visibility of both the projected image and the scene on the opposite side.
  • An object of the present invention is to provide a display device, a display method, and a display system capable of projecting an image onto a screen that can be divided.
  • the display device is a display device that projects an image on a dimming screen, and has an acquisition unit that acquires area information relating to which area of the dimming screen the image is displayed.
  • a control unit that projects the image onto a specific area of the dimming screen by controlling a scanning mirror that scans the light emitted from the light source based on the area information.
  • the display method is a display method for projecting an image on a dimming screen, and obtains area information relating to which area of the dimming screen the image is displayed.
  • the image is displayed in a specific area of the dimming screen by controlling a scanning mirror that scans the light emitted from the light source based on the area information.
  • a display system is a display system that projects an image onto a dimming screen, and is a dimming control unit that controls dimming of the dimming screen and an area of the dimming screen.
  • a specific area of the dimming screen is controlled by controlling an acquisition unit that acquires area information related to displaying the image and a scanning mirror that scans the light emitted from the light source based on the area information. It is provided with a scanning control unit for projecting the image.
  • the display device, display method, and display system of the present invention make it possible to project an image suitably on a screen that can be divided.
  • (a) is a diagram showing a scanning range of a scanning mirror
  • (b) is a diagram showing a projected image.
  • (a) is a diagram showing a scanning range of a scanning mirror, and (b) is a diagram showing a projected image.
  • (a) is a diagram showing a scanning range of a scanning mirror, and (b) is a diagram showing a projected image.
  • the display system 1 includes a dimming screen 2 and a display device 3 that projects an image onto the dimming screen 2 to display an image.
  • the display device 3 is, for example, a laser projector.
  • the display system 1 is applied to, for example, a vehicle, and displays an image to a user who is in the vehicle.
  • the image includes a video showing various information, a still image, a moving image, text information, and the like.
  • the dimming screen 2 includes a base material 4 made of a transparent member and a plurality of dimming members 5 provided on the base material 4.
  • the base material 4 is, for example, a glass material of a vehicle.
  • the dimming member 5 is a liquid crystal material whose light transmittance decreases depending on, for example, an applied voltage. For example, when the light transmittance of the light control member 5 is reduced, the light control member 5 has a cloudy white appearance. The dimming member 5 becomes easier to project a projected image as the light transmittance decreases and becomes opaque.
  • the display device 3 includes a light source 6 that outputs light, a scanning mirror 7 that scans the light emitted from the light source 6, and a display control device 8 that controls the operation of the display device 3.
  • the light source 6 is a laser light source that outputs each RGB laser light.
  • the scanning mirror 7 is, for example, a MEMS mirror (MEMS: Micro Electro Mechanical Systems) that rotates on two rotation axes.
  • the scanning mirror 7 reflects the light from the light source 6 and scans the reflected light with respect to the dimming screen 2.
  • the display control device 8 controls, for example, the operation of the light source 6 and the scanning mirror 7.
  • the dimming screen 2 has a width direction and a height direction that intersect with each other.
  • the width direction and the height direction of the dimming screen 2 are indicated by arrows X and Y, respectively.
  • the plurality of dimming members 5 are arranged so as to divide the dimming screen 2 into a plurality of areas 10a to d. Each dimming member 5 extends over, for example, the entire width direction in the dimming screen 2. Further, the plurality of dimming members 5 are arranged side by side in the height direction on the dimming screen 2.
  • the plurality of areas 10a to 10d are arranged in the order of area 10a, area 10b, area 10c, and area 10d from the upper side in the height direction.
  • the scanning mirror 7 performs a so-called raster scan in which the light emitted from the light source 6 is two-dimensionally scanned on the dimming screen 2 by rotating on two rotation axes intersecting each other, for example.
  • the raster scan scans on the surface of the dimming screen 2 by forming a scanning line L extending in one of the width direction and the height direction and adjusting the scanning position in the other in the width direction and the height direction, for example. ..
  • the scanning line L becomes a set of beam spots, for example, when the light source 6 is intermittently turned on.
  • the display control device 8 outputs, for example, the data of each pixel generated from the image data to the light source 6 in synchronization with the scanning of the scanning mirror 7.
  • the data of each pixel indicates, for example, the color tone and the brightness of the pixel.
  • the display control device 8 controls each of the RGB laser beams of the light source 6 for each beam spot, for example, and expresses the color tone and the brightness of each pixel.
  • the display system 1 includes a selection switch 11 for selecting an image display based on an operation by a user, and a screen control device 12 for controlling a dimming screen 2.
  • the selection switch 11 outputs an image display selection request to the screen control device 12 by the user's switch operation.
  • the selection request includes area information relating to which area of the dimming screen 2 the image is displayed.
  • the area information is the area selection information based on the user operation to the selection switch 11. That is, the selection switch 11 selects a display area for displaying an image from the plurality of areas 10a to d by a user operation.
  • the screen control device 12 includes a dimming control unit 13 that controls the dimming member 5.
  • the dimming control unit 13 controls each dimming member 5 between a dimming state dimmed so as to project a projected image and a transparent state transmitting the emitted light.
  • dimming means, for example, adjusting the light transmittance of the dimming member 5.
  • the dimming state includes, for example, a state in which the light transmittance is lower than that in the transparent state.
  • the dimming control unit 13 controls the dimming member 5 to the dimming state by outputting the control voltage to the dimming member 5, and stops the output of the control voltage to make the dimming member 5 transparent. Control.
  • the dimming control unit 13 controls, for example, the dimming member 5 of the area selected as the display area among the plurality of areas 10a to 10 to the dimming state based on the area selection information included in the selection request.
  • the dimming member 5 in the area is controlled to be transparent.
  • the display control device 8 includes an acquisition unit 14 for acquiring area selection information and a scanning control unit 15 for controlling the driving of the scanning mirror 7.
  • the acquisition unit 14 acquires, for example, the area selection information included in the selection request from the screen control device 12.
  • the display control device 8 is provided with a memory 16 capable of writing and reading programs and data.
  • the memory 16 stores, for example, a runout angle map showing a range of runout angles of the scanning mirror 7 with respect to area selection information.
  • the scanning control unit 15 controls the driving of the scanning mirror 7 based on the area selection information acquired by the acquisition unit 14, and controls the image display on the dimming screen 2.
  • the scanning control unit 15 controls the scanning mirror 7 so as to project an image only on the display area among the plurality of areas 10a to d, for example.
  • the scanning control unit 15 rotates (vibrates) the scanning mirror 7 on the first rotation axis of the two rotation axes, thereby causing the light from the light source 6 to be rotated (vibrated) over the entire width direction of the dimming screen 2. Scan to. As a result, the scanning line L is formed.
  • the scanning lines L alternate in the outward direction and the return direction in the width direction for each line (see FIG. 2). In other words, the scanning lines L adjacent to each other in the height direction of the dimming screen 2 are scanned in opposite directions (that is, in the outward direction and the return direction) in the width direction of the dimming screen 2.
  • the scanning control unit 15 adjusts the scanning position in the height direction by rotating the scanning mirror 7 on the second rotation axis of the two rotation axes.
  • rotation on the first rotation axis of the two rotation axes of the scanning mirror 7 will be referred to as “rotation in the width direction”
  • rotation on the second rotation axis of the two rotation axes will be described.
  • the rotation is referred to as "rotation in the height direction”.
  • the scanning mirror 7 is arranged at an angle with respect to the light incident from the light source 6.
  • the scanning control unit 15 changes the angle of the reflected light by changing the inclination of the scanning mirror 7 with respect to the incident light.
  • the amount of change in the inclination of the scanning mirror 7 with respect to the incident light is defined as the mechanical deflection angle ⁇ .
  • the amount of change in the angle of the reflected light is defined as the optical deflection angle ⁇ .
  • the scanning control unit 15 controls the deflection angle for each of the rotation in the width direction and the rotation in the height direction of the scanning mirror 7 by using the deflection angle map.
  • the runout angle controlled by the scanning control unit 15 may be a mechanical runout angle ⁇ or an optical runout angle ⁇ .
  • the scanning control unit 15 sets a runout angle corresponding to the display area from the area selection information using the runout angle map, and drives the scanning mirror 7 at the set runout angle.
  • step 101 when a user operation is performed, the selection switch 11 outputs a selection request to the screen control device 12.
  • the selection request includes area selection information indicating the area selected as the image display area among the plurality of areas 10a to d.
  • the dimming control unit 13 of the screen control device 12 controls the light transmittance of each dimming member 5 according to the area selection information included in the selection request.
  • the dimming member 5 controls the dimming member 5 in the area where the image is displayed to be in the dimming state, and controls the dimming member 5 in the other areas to be in the transparent state. That is, the dimming control unit 13 controls the light transmittance of each dimming member 5 according to the area selection information included in the selection request, and puts the dimming member 5 in the area for displaying an image into a dimming state. Set and set the dimming member 5 in other areas to the transparent state.
  • step 103 the acquisition unit 14 of the display control device 8 of the display device 3 acquires the area selection information from the screen control device 12.
  • the acquisition unit 14 can acquire the area selection information at an arbitrary timing after the selection request is output by the selection switch 11 (step 101). That is, the acquisition timing may be before the dimming control unit 13 controls the dimming member 5.
  • step 104 the scanning control unit 15 sets the deflection angle of the scanning mirror 7 so that the image is displayed only in the display area among the plurality of areas 10a to d.
  • the scan control unit 15 sets the runout angle of the scan mirror 7 from the area selection information using the runout angle map.
  • the runout angle map stores the runout angle of rotation in the height direction with respect to the area selection information. Therefore, the scanning control unit 15 sets the swing angle of rotation in the height direction according to the area selection information.
  • step 105 the display device 3 drives the scanning mirror 7 at the set deflection angle to project an image.
  • the projected image is an image in which the area displayed in the height direction differs depending on the set deflection angle.
  • the projected image of the display device 3 will be described.
  • the area 10a and the area 10b are selected as the display area by the user operation.
  • the scanning mirror 7 rotates at a runout angle set in the scanning control unit 15.
  • the scanning mirror 7 rotates in the height direction within a range of runout angles corresponding to the areas 10a and 10b.
  • the scanning mirror 7 scans the light from the light source 6 only in the areas 10a and 10b.
  • the display device 3 projects an image only on the portion corresponding to the area 10a and the area 10b, and does not project the image on the portion corresponding to the area 10c and the area 10d.
  • the display device 3 may project an image partially missing on the image data that is the basis of the projected image, or may project an enlarged or reduced image according to the display area. ..
  • the dimming screen 2 when the dimming screen 2 is applied to the side glass of the rear seat of the vehicle, the dimming screen 2 projects an image projected on the display area.
  • the area 10a and the area 10b selected as the display area are controlled by the dimming state and are in an opaque state, and clearly project an image.
  • the area 10c and the area 10d are in a transparent state. Therefore, the dimming screen 2 allows the user to clearly see the scene on the opposite side of the dimming screen 2 through the area 10c and the area 10d.
  • the scanning control unit 15 of the display device 3 projects an image onto a specific area of the dimming screen 2 by controlling the scanning mirror 7.
  • the image in the dimming screen 2 divided into a plurality of areas 10a to d, the image can be projected on the area for displaying the image. Therefore, an image can be suitably projected on the dimming screen 2 that can be divided.
  • the dimming screen 2 is divided into a dimming state area and a transparent state area, the image is clearly projected on the dimming state area by projecting the image on the dimming state area.
  • the scene on the opposite side of the dimming screen 2 can be clearly seen through the transparent area. That is, it is possible to achieve both the visibility of the image projected on the dimming screen 2 and the visibility of the scene on the opposite side of the dimming screen 2.
  • the scanning control unit 15 does not project an image on an area other than the area selected as the display area. According to this, the light projected on the opposite side of the light control screen 2 is not transmitted through the light control member 5 in the transparent state. Therefore, for example, the person on the opposite side of the dimming screen 2 does not feel dazzling.
  • the display system 1 includes a selection switch 11 that allows a user to select an image display area on the dimming screen 2.
  • the scanning control unit 15 controls the scanning mirror based on the area selection information output when the selection switch 11 accepts the user operation. According to this, the user can set a desired area as the display area by operating the selection switch 11, which is highly convenient. Further, the scanning control unit 15 can suitably display an image based on the output of the selection switch 11.
  • the display device 3 includes an acquisition unit 14 and a scanning control unit 15.
  • the acquisition unit 14 acquires area information relating to which area of the dimming screen 2 the image is displayed.
  • the scanning control unit 15 projects an image onto a specific area of the dimming screen 2 by controlling a scanning mirror 7 that scans the light emitted from the light source 6 based on the area information. According to this configuration, the image can be projected on the area for displaying the image on the dimming screen 2 divided into the plurality of areas 10a to d. Therefore, an image can be suitably projected on the dimming screen 2 that can be divided.
  • the scanning control unit 15 controls the operation of the scanning mirror 7 so that the image is projected only in the area where the image can be displayed among the plurality of areas 10a to d of the dimming screen 2.
  • the dimming screen 2 does not project an image in an area where the image is not projected.
  • the light projected onto the opposite side of the dimming screen 2 is not transmitted through the dimming member 5 in the transparent state. Therefore, for example, the person on the opposite side of the dimming screen 2 does not feel dazzling. Therefore, it can contribute to a suitable image projection.
  • the scanning mirror 7 scans the light from the light source 6 by rotation by two rotation axes.
  • the scanning control unit 15 sets the deflection angle of the scanning mirror based on the area information, and drives the scanning mirror 7 at the set deflection angle to project an image onto a specific area of the dimming screen 2. According to this configuration, the scanning mirror 7 can be controlled by a simple method of setting the runout angle.
  • the display area of the image on the dimming screen 2 is switched by the user operation.
  • the scanning control unit 15 controls the scanning mirror 7 based on the area selection information based on the user operation. According to this configuration, the user can set a desired area as the display area by the user operation, which is highly convenient. Further, the scanning control unit 15 can suitably display an image according to a user operation of selecting a display area.
  • the acquisition unit 14 of the display control device 8 acquires the captured image information of the camera 20 that captures the dimming screen 2 as the area information.
  • the camera 20 is provided in, for example, the display device 3.
  • the scanning control unit 15 determines the display area of the image on the dimming screen 2 based on the captured image information, and controls the scanning mirror 7 based on the determination result.
  • the scanning control unit 15 sets, for example, the deflection angle of the scanning mirror 7 so as to project an image onto the determined display area.
  • step 201 the acquisition unit 14 acquires the captured image information captured by the camera 20.
  • the acquisition unit 14 repeatedly acquires captured image information from the camera 20 periodically or irregularly.
  • the scanning control unit 15 determines the display area of the image on the dimming screen 2 based on the captured image information.
  • the scanning control unit 15 determines which area is the display area by determining whether each of the plurality of areas 10a to 10 is in a dimming state or a transparent state by, for example, analyzing captured image information.
  • step 203 the scanning control unit 15 sets the deflection angle of the scanning mirror 7 based on the determination result of the display area.
  • the scanning control unit 15 sets the runout angle corresponding to the display area by using, for example, a runout angle map.
  • step 204 the display device 3 drives the scanning mirror 7 at the set deflection angle to project an image.
  • the projected image has a different displayed area depending on the set deflection angle.
  • the area information relating to which area of the dimming screen 2 the image is displayed is the captured image information of the camera 20 that captures the dimming screen 2.
  • the scanning control unit 15 determines the display area of the image on the dimming screen 2 based on the captured image information, and controls the scanning mirror 7 based on the determination result. According to this configuration, the display area can be determined by using the photographed image information taken by the camera 20 provided in the display device 3. Therefore, it is possible to project an image according to the display area of the dimming screen 2 without communicating between the screen control device 12 and the display device 3 arranged separately from each other.
  • the display area of the dimming screen 2 may be divided and set. For example, the image may be projected only on the areas 10a, 10c, and 10d.
  • the display control device 8 stops the irradiation of light from the light source 6, for example, while the scanning mirror 7 rotates between the areas 10a and 10c.
  • the scanning control unit 15 may increase the rotation speed between the areas 10a and the areas 10c in the rotation of the scanning mirror 7 in the height direction.
  • the plurality of areas of the dimming screen 2 may be an area 30 that divides the dimming screen 2 into a matrix.
  • the scanning control unit 15 may control the projection of the image onto each area 30 by controlling the scanning to each area 30 in a matrix.
  • the formation of the scanning line L is not limited to the figure, and for example, raster scanning may be performed in order for each area 30.
  • the captured image information captured by the camera 20 may be the image itself or information related to the brightness and color tone of the image. Further, the camera 20 may shoot a still image or a moving image.
  • the runout angle controlled by the scanning control unit 15 may be a mechanical runout angle ⁇ or an optical runout angle ⁇ .
  • the scanning mirror 7 is not limited to one that rotates by a rotation axis, and may be driven by bending vibration. Therefore, the scanning control unit 15 is not limited to setting the deflection angle of the scanning mirror 7, and can be changed to the control according to the scanning mirror 7.
  • the selection switch 11 may be a physical operation unit, a touch operation unit that is touch-operated, or a detection unit such as a camera that detects a gesture operation.
  • the number of areas formed on the dimming screen 2 is not particularly limited, and may be two, three, or four or more.
  • the arrangement of the area formed on the dimming screen 2 is not particularly limited.
  • the plurality of areas may be arranged in the height direction of the dimming screen 2, may be arranged in the width direction, or may be arranged in a matrix.
  • the base material 4 of the dimming screen 2 is not limited to the transparent member, and may be, for example, a mirror. That is, the scene on the opposite side of the dimming screen 2 from the user's point of view is not limited to an object physically on the other side of the dimming screen 2, but may be visual information that can be seen through the dimming screen 2.
  • the light transmittance in the transparent state of the dimming member 5 is not particularly limited.
  • the light transmittance in the transparent state can be appropriately changed according to the visibility of the scene on the opposite side of the dimming screen 2.
  • the control voltage may be applied when the dimming member 5 is in the transparent state.
  • the dimming member 5 is not limited to being white in the dimming state, and may be colored.
  • the dimming member 5 may be transparent when there is no applied voltage and the light transmittance may decrease according to the applied voltage, or may be opaque when there is no applied voltage and the light transmittance increases according to the applied voltage. It may be something to do.
  • the dimming member 5 may be a liquid crystal material, an electrochromic material, or a photochromic material.
  • the display device 3 may be a front projection type that projects an image from the same side as the user on the dimming screen 2, or a rear projection type that projects an image from the opposite side to the user.
  • the display device 3 is not limited to the laser projector, and various projectors can be applied.
  • the mounting position of the display device 3 is not particularly limited, and may be provided, for example, in the vehicle interior or outside the vehicle interior, on the ceiling inside the vehicle interior, or in the vehicle. It may be provided on the outdoor side mirror.
  • the trigger for starting the projection of the image may be a user operation, a vehicle power transition, or communication with another device, and is not particularly limited.
  • the content of the projected image is not particularly limited.
  • the content of the projected image may be one that displays various information or images in conjunction with an in-vehicle device such as a navigation system or audio, or one that displays road information, information on surrounding facilities, advertisements, and the like. But it may be.
  • the image displayed on the dimming screen 2 may be another image that is independent of each other between the areas.
  • the display control device 8 may process the image data to be projected according to the display area. For example, the display control device 8 cuts a portion of the projected image outside the display area, or processes the image data so that the projected image is reduced so as to fit in the display area.
  • the projected image may include video, still images, moving images, textual information, or a combination thereof.
  • the display system 1 and the display device 3 are not limited to being applied to a vehicle, and may be provided in various devices and devices, or in a building or equipment.
  • Each embodiment may be configured as a computer system including one or more processors that perform various processes according to a computer program containing instructions stored in one or more non-temporary computer readable storage media.
  • the processor includes a dedicated hardware circuit such as a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), and an application specific integrated circuit (ASIC), or a combination thereof.
  • the computer-readable storage medium is desired in the form of an optical disk storage device such as RAM (RandomAccessMemory), ROM (ReadOnlyMemory), CD-ROM, a magnetic disk storage device, a magnetic storage device, a flash memory, or an instruction or data structure. Includes any other medium that can be used to store the program code of and is accessible by a computer.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Instrument Panels (AREA)
  • Mechanical Optical Scanning Systems (AREA)

Abstract

Cette invention concerne un dispositif d'affichage (3), comprenant une unité d'acquisition (14) et une unité de commande de balayage (15). L'unité d'acquisition (14) acquiert des informations de région concernant la région d'un écran de commande de lumière (2) sur laquelle une image est affichée. L'unité de commande de balayage (15) commande, sur la base des informations de région, un miroir de balayage (7) pour effectuer un balayage à l'aide de la lumière émise par une source de lumière (6) pour projeter une image dans une région particulière de l'écran de commande de lumière (2).
PCT/JP2021/027101 2020-07-27 2021-07-20 Dispositif d'affichage, procédé d'affichage et système d'affichage WO2022024866A1 (fr)

Priority Applications (2)

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CN202180060136.XA CN116134804A (zh) 2020-07-27 2021-07-20 显示装置、显示方法、以及显示系统
DE112021003952.0T DE112021003952T5 (de) 2020-07-27 2021-07-20 Anzeigevorrichtung, anzeigeverfahren und anzeigesystem

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JP2020126531A JP7469174B2 (ja) 2020-07-27 2020-07-27 表示装置及び表示方法
JP2020-126531 2020-07-27

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WO2022024866A1 true WO2022024866A1 (fr) 2022-02-03

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05191726A (ja) * 1992-01-09 1993-07-30 Nippon Telegr & Teleph Corp <Ntt> 臨場感表示装置
JP2010243940A (ja) * 2009-04-09 2010-10-28 Panasonic Corp 画像表示装置
JP2012138686A (ja) * 2010-12-24 2012-07-19 Kyocera Corp 携帯電子機器
JP2012255859A (ja) * 2011-06-08 2012-12-27 Seiko Epson Corp 表示装置
JP2015079201A (ja) * 2013-10-18 2015-04-23 日立マクセル株式会社 映像表示システム、映像表示方法、及び投射型映像表示装置
JP2016009100A (ja) * 2014-06-25 2016-01-18 小島プレス工業株式会社 車載用投影システム
JP2017028430A (ja) * 2015-07-21 2017-02-02 日本電信電話株式会社 投影方法、投影装置及び投影プログラム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6710499B2 (ja) 2015-06-15 2020-06-17 株式会社平和 遊技機

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05191726A (ja) * 1992-01-09 1993-07-30 Nippon Telegr & Teleph Corp <Ntt> 臨場感表示装置
JP2010243940A (ja) * 2009-04-09 2010-10-28 Panasonic Corp 画像表示装置
JP2012138686A (ja) * 2010-12-24 2012-07-19 Kyocera Corp 携帯電子機器
JP2012255859A (ja) * 2011-06-08 2012-12-27 Seiko Epson Corp 表示装置
JP2015079201A (ja) * 2013-10-18 2015-04-23 日立マクセル株式会社 映像表示システム、映像表示方法、及び投射型映像表示装置
JP2016009100A (ja) * 2014-06-25 2016-01-18 小島プレス工業株式会社 車載用投影システム
JP2017028430A (ja) * 2015-07-21 2017-02-02 日本電信電話株式会社 投影方法、投影装置及び投影プログラム

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JP7469174B2 (ja) 2024-04-16
CN116134804A (zh) 2023-05-16
JP2022023534A (ja) 2022-02-08
DE112021003952T5 (de) 2023-05-25

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