WO2024096255A1 - 차량용 디스플레이 장치 - Google Patents
차량용 디스플레이 장치 Download PDFInfo
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- WO2024096255A1 WO2024096255A1 PCT/KR2023/010343 KR2023010343W WO2024096255A1 WO 2024096255 A1 WO2024096255 A1 WO 2024096255A1 KR 2023010343 W KR2023010343 W KR 2023010343W WO 2024096255 A1 WO2024096255 A1 WO 2024096255A1
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- Prior art keywords
- windshield
- area
- image
- mirror
- generating device
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- 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
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
-
- 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
-
- 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
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
-
- 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
- G02B2027/0192—Supplementary details
- G02B2027/0194—Supplementary details with combiner of laminated type, for optical or mechanical aspects
-
- 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
- G02B2027/0192—Supplementary details
- G02B2027/0196—Supplementary details having transparent supporting structure for display mounting, e.g. to a window or a windshield
Definitions
- the present disclosure relates to a vehicle display device, and more specifically, to a vehicle display device that can reduce size while implementing a large screen projection image.
- a vehicle is a device that moves the user in the desired direction.
- a representative example is a car.
- a vehicle display device is installed inside the vehicle.
- a display is arranged in a cluster etc. to display various types of information.
- various displays such as AVN (Audio Video Navigation) displays and head-up displays that output projected images on the windshield, in vehicles, separately from the cluster.
- AVN Audio Video Navigation
- head-up displays that output projected images on the windshield, in vehicles, separately from the cluster.
- head-up displays are increasing.
- Japanese Patent Publication No. 4474711 relates to a head-up display and discloses a HUD optical structure.
- the problem solved by the present disclosure is to provide a vehicle display device that can reduce the size while implementing a large screen projection image.
- Another problem to be solved by the present disclosure is to provide a vehicle display device that can reduce its size while securing an optical path.
- a vehicle display device for achieving the above problem includes an image generating device that outputs a projected image in the direction of the windshield, a projected image reflected from the first area of the windshield, and It includes a mirror that reflects in one direction, and the projected image from the mirror is reflected in the second area of the windshield and output to the third area.
- the second area of the windshield may be closer to the third area than the first area of the windshield.
- the angle of incidence of the projection image incident on the first area of the windshield may be greater than the angle of incidence of the projection image incident on the second area of the windshield.
- the image generating device may be closer to the third area than the mirror.
- the position of the image generating device is placed at a higher position than the position of the mirror.
- the mirror may be closer to the third area than the image generating device.
- the position of the mirror may be placed at a higher position than the position of the image generating device.
- the vehicle display device may further include a transparent cover disposed between the image generating device and the windshield.
- the image generating device may include a digital mirror device or a liquid crystal display panel.
- the windshield may have a higher reflectance of S-polarized light than that of P-polarized light.
- the image generating device outputs a projected image to the first area of the windshield to which the P polarizing reflective film is attached, and the mirror reflects the projected image to the second area of the windshield to which the P polarizing reflective film is attached. can do.
- the first area of the windshield may correspond to a black masking area or a frit area.
- the vehicle display device further includes a transparent cover disposed between the image generating device and the windshield, and a phase retardation film attached to the transparent cover
- the image generating device includes a liquid crystal display panel.
- the liquid crystal display panel outputs a projection image of P polarization
- the transparent cover outputs a projection image of right-circular polarization to the first area of the windshield based on the projection image of P polarization
- the mirror outputs a projection image of right-circular polarization to the first area of the windshield.
- a projection image of S-polarized light is output based on the projection image of left-circular polarization from the first area, and the transparent cover outputs a projection image of left-circular polarization based on the projection image of S-polarized light to a second area of the windshield.
- the vehicle display device further includes a transparent cover disposed between the image generating device and the windshield, a phase retardation film is attached to a first area of the windshield, and the image generating device includes a liquid crystal display panel, the liquid crystal display panel outputs a projected image of P polarized light, the mirror reflects a projected image of S polarized light from a first area of the windshield, and the transparent cover outputs a projected image of S polarized light.
- the image can be output to the second area of the windshield.
- the mirror may include a base and a mirror coating member formed on the base.
- the mirror may include a base, an optical adhesive film formed on the base, and a reflective film on the optical adhesive film.
- the optical path before the primary reflection of the projected image output from the image generating device may be longer than the optical path from the primary reflection to before the secondary reflection.
- a vehicle display device includes an image generating device that outputs a projected image in the direction of the windshield, and a mirror that reflects the projected image primarily reflected from the windshield in the windshield direction, The projected image from the mirror is secondary reflected from the windshield, and the optical path before the primary reflection of the projected image output from the image generating device is longer than the optical path from the primary reflection to before the secondary reflection.
- a vehicle display device includes an image generating device that outputs a projected image in the direction of the windshield, and a mirror that reflects the projected image reflected in the first area of the windshield in the windshield direction. And the projected image from the mirror is reflected in the second area of the windshield and output to the third area. Accordingly, it is possible to reduce the size while implementing a projection image on a large screen. In particular, it is possible to reduce the size while securing the optical path.
- the second area of the windshield may be closer to the third area than the first area of the windshield. Accordingly, it is possible to reduce the size while implementing a projection image on a large screen.
- the angle of incidence of the projection image incident on the first area of the windshield may be greater than the angle of incidence of the projection image incident on the second area of the windshield. Accordingly, it is possible to reduce the size while implementing a projection image on a large screen.
- the image generating device may be closer to the third area than the mirror. Accordingly, it is possible to reduce the size while implementing a projection image on a large screen.
- the position of the image generating device is placed at a higher position than the position of the mirror. Accordingly, it is possible to reduce the size while implementing a projection image on a large screen.
- the mirror may be closer to the third area than the image generating device. Accordingly, it is possible to reduce the size while implementing a projection image on a large screen.
- the position of the mirror may be placed at a higher position than the position of the image generating device. Accordingly, it is possible to reduce the size while implementing a projection image on a large screen.
- the vehicle display device may further include a transparent cover disposed between the image generating device and the windshield. Accordingly, it is possible to output the projected image to the outside of the image generating device while protecting the interior of the image generating device.
- the image generating device may include a digital mirror device or a liquid crystal display panel. Accordingly, the projected image can be output outside the image generating device.
- the windshield may have a higher reflectance of S-polarized light than that of P-polarized light. Accordingly, the brightness of the S-polarization-based projection image may be higher.
- the image generating device outputs a projected image to the first area of the windshield to which the P polarizing reflective film is attached, and the mirror reflects the projected image to the second area of the windshield to which the P polarizing reflective film is attached. can do. Accordingly, it is possible to reduce the size while implementing a projection image on a large screen.
- the first area of the windshield may correspond to a black masking area or a frit area. Accordingly, the brightness of the projected image can be improved.
- the vehicle display device further includes a transparent cover disposed between the image generating device and the windshield, and a phase retardation film attached to the transparent cover
- the image generating device includes a liquid crystal display panel.
- the liquid crystal display panel outputs a projection image of P polarization
- the transparent cover outputs a projection image of right-circular polarization to the first area of the windshield based on the projection image of P polarization
- the mirror outputs a projection image of right-circular polarization to the first area of the windshield.
- a projection image of S-polarized light is output based on the projection image of left-circular polarization from the first area, and the transparent cover outputs a projection image of left-circular polarization based on the projection image of S-polarized light to a second area of the windshield.
- the vehicle display device further includes a transparent cover disposed between the image generating device and the windshield, a phase retardation film is attached to a first area of the windshield, and the image generating device includes a liquid crystal display panel, the liquid crystal display panel outputs a projected image of P polarized light, the mirror reflects a projected image of S polarized light from a first area of the windshield, and the transparent cover outputs a projected image of S polarized light.
- the image can be output to the second area of the windshield. Accordingly, it is possible to reduce the size while implementing a projection image of S-polarized light on a large screen.
- the mirror may include a base and a mirror coating member formed on the base. Accordingly, the reflectance of the mirror can be improved.
- the mirror may include a base, an optical adhesive film formed on the base, and a reflective film on the optical adhesive film. Accordingly, the reflectance of the mirror can be improved.
- the optical path before the primary reflection of the projected image output from the image generating device may be longer than the optical path from the primary reflection to before the secondary reflection. Accordingly, it is possible to reduce the size while implementing a projection image on a large screen.
- a vehicle display device includes an image generating device that outputs a projected image in the direction of the windshield, and a mirror that reflects the projected image primarily reflected from the windshield in the windshield direction,
- the projected image from the mirror is secondary reflected from the windshield, and the optical path before the primary reflection of the projected image output from the image generating device is longer than the optical path from the primary reflection to before the secondary reflection. Accordingly, it is possible to reduce the size while implementing a projection image on a large screen. In particular, it is possible to reduce the size while securing the optical path.
- FIG. 1 is a diagram showing an example of the exterior and interior of a vehicle.
- FIGS. 2A to 2B are diagrams illustrating various examples of the internal configuration of a vehicle display device related to the present disclosure.
- FIG. 3 is a diagram illustrating an example of the internal configuration of a vehicle display device according to an embodiment of the present disclosure.
- FIG. 4 is a diagram referenced in the description of FIG. 3.
- FIG. 5 is a diagram illustrating an example of the internal configuration of a vehicle display device according to another embodiment of the present disclosure.
- FIG. 6 is a diagram illustrating an example of the internal configuration of a vehicle display device according to another embodiment of the present disclosure.
- FIG. 7 is a diagram illustrating an example of the internal configuration of a vehicle display device according to another embodiment of the present disclosure.
- 8A to 8B are diagrams illustrating various examples of the mirrors of FIGS. 3 to 7.
- FIGS. 9A to 10B are diagrams referenced in the description of FIGS. 3 to 7.
- module and “part” for components used in the following description are simply given in consideration of the ease of writing this specification, and do not in themselves give any particularly important meaning or role. Accordingly, the terms “module” and “unit” may be used interchangeably.
- FIG. 1 is a diagram showing an example of the exterior and interior of a vehicle.
- the vehicle 200 is operated by a plurality of wheels 103FR, 103FL, 103RL, etc. rotated by a power source and a steering wheel 150 to control the moving direction of the vehicle 200. .
- the vehicle 200 may be further equipped with a camera 195 for acquiring images in front of the vehicle.
- the vehicle 200 may be equipped with a plurality of displays 180a, 180b, and 180h for displaying images, information, etc. inside.
- the first display 180a may be a cluster display
- the second display 180b may be an Audio Video Navigation (AVN) display
- the third display 180a may be a cluster display.
- the display 180h may be a HUD display, a head up display (HUD), in which an image is projected on a predetermined area (Ara) spaced apart from the windshield (WS).
- the vehicle display device (100 in FIG. 3) according to an embodiment of the present disclosure is a device for the HUD display 180h.
- a black masking area or a frit area Fz may be formed in the imaginary area of the windshield WS, as shown in the drawing.
- the vehicle 200 described in this specification may be a concept that includes all vehicles including an engine as a power source, a hybrid vehicle having an engine and an electric motor as a power source, and an electric vehicle having an electric motor as a power source. there is.
- FIGS. 2A to 2B are diagrams illustrating various examples of the internal configuration of a vehicle display device related to the present disclosure.
- FIG. 2A shows an example of a vehicle display device related to the present disclosure.
- a vehicle display device 100x related to the present disclosure includes a liquid crystal display panel 300x that outputs a projected image, a fold mirror 315x that reflects the projected image from the liquid crystal display panel 300x, and a fold mirror. It includes a concave mirror 325x that reflects the projected image from 315x to the windshield WS.
- the projected image reflected from a predetermined area (Arx) of the windshield (WS) is output to the driver's line of sight area (Ara).
- the concave mirror 325x in the vehicle display device 100x is disposed between the liquid crystal display panel 300x and the driver's gaze area Ara.
- the concave mirror 325x in the vehicle display device 100x determines the arrangement of the projected image and the position of the light source.
- the size SZx of the vehicle display device 100x can be reduced.
- FIG. 2B shows another example of a vehicle display device related to the present disclosure.
- a vehicle display device 100y related to the present disclosure includes a liquid crystal display panel 300y that outputs a projected image, a fold mirror 315y that reflects the projected image from the liquid crystal display panel 300y, and a fold mirror. It includes a concave mirror 325y that reflects the projected image from 315y, and a transparent cover 335y that outputs the projected image from the concave mirror 325y to the windshield WS.
- the projected image reflected from a predetermined area (Ary) of the windshield (WS) is output to the driver's line of sight area (Ara).
- the concave mirror 325y in the vehicle display device 100y is disposed in front of the liquid crystal display panel 300y and the driver's viewing area Ara.
- liquid crystal display panel 300y in the vehicle display device 100y is disposed between the concave mirror 325y and the driver's gaze area Ara.
- the concave mirror 325y in the vehicle display device 100y determines the arrangement of the projected image and the position of the light source.
- the size (SZy) of the vehicle display device 100y can be reduced.
- a vehicle display device 100 using two reflections from the windshield (WS) is proposed. This will be described with reference to Figure 3 and below.
- FIG. 3 is a diagram illustrating an example of the internal configuration of a vehicle display device according to an embodiment of the present disclosure.
- a vehicle display device 100 includes an image generating device 300 that outputs a projected image in the direction of the windshield (WS), and a first display device of the windshield (WS). It includes a mirror 325 that reflects the projected image reflected in the area Ra toward the windshield WS.
- the projected image from the mirror 325 is reflected in the second area Rb of the windshield WS and output to the third area Ara.
- the third area (Ara) may correspond to the driver's gaze area.
- the vehicle display device 100 since the vehicle display device 100 according to an embodiment of the present disclosure uses two reflections from the windshield WS, the size can be reduced while sufficiently securing an optical path.
- the size of the vehicle display device 100 according to an embodiment of the present disclosure is SZa, which is the size (SZx) of the vehicle display device 100x of FIG. 2A or the size of the vehicle display device 100y of FIG. 2B ( SZy) becomes smaller than
- the second area (Rb) of the windshield (WS) may be closer to the third area (Ara) than the first area (Ra) of the windshield (WS).
- the angle of incidence of the projection image incident on the first area Ra of the windshield WS may be greater than the angle of incidence of the projection image incident on the second area Rb of the windshield WS. Accordingly, it is possible to reduce the size while implementing a projection image on a large screen.
- the image generating device 300 may be closer to the third area Ara than the mirror 325.
- the position of the image generating device 300 may be placed at a higher position than the position of the mirror 325. Accordingly, it is possible to reduce the size while implementing a projection image on a large screen.
- the image generating device 300 may include a digital mirror device or a liquid crystal display panel. Accordingly, the projected image can be output to the outside of the image generating device 300.
- the image generating device 300 may include a light source (not shown) and a digital mirror device (not shown) that reflects light output from the light source.
- the light source may include an LED diode or a laser diode.
- a digital mirror device may include a plurality of digital mirrors.
- a digital micromirror device DMD may be provided.
- the image generating device 300 may include a light source (not shown) and a liquid crystal display panel (not shown) that outputs a projected image based on the light output from the light source.
- the liquid crystal display panel can output a projection image of P polarized light.
- the first area Ra of the windshield WS may correspond to the black masking area or frit area FZ of FIG. 1 . Accordingly, the brightness of the projected image can be improved.
- the vehicle display device 100 may further include a transparent cover 335 disposed between the image generating device 300 and the windshield WS. Accordingly, it is possible to output the projected image to the outside of the image generating device 300 while protecting the interior of the image generating device 300.
- the optical path before the first reflection of the projected image output from the liquid crystal display panel 300x is smaller than the optical path from the first reflection to before the second reflection. do.
- the optical path before the first reflection of the projected image output from the liquid crystal display panel (300x) corresponds between the liquid crystal display panel (300x) and the fold mirror (315x), and is the length from the first reflection to before the second reflection.
- the optical path corresponds between the fold mirror 315x and the concave mirror 325x.
- the optical path before the primary reflection of the projected image output from the liquid crystal display panel 300x is significantly longer than the optical path after the primary reflection but before the secondary reflection. It becomes small.
- the optical path before the first reflection of the projected image output from the image generating device 300 in the vehicle display device 100 is the optical path from the first reflection to before the second reflection. longer than
- the optical path before the first reflection of the projected image output from the image generating device 300 in the vehicle display device 100 in FIG. 3 includes the image generating device 300 and the first area of the windshield WS ( Ra) corresponds to between
- the optical path from the first reflection to the second reflection in the vehicle display device 100 corresponds between the first area Ra of the windshield WS and the mirror 325.
- the optical path before the first reflection of the projected image output from the image generating device 300 is longer than the optical path from the first reflection to before the second reflection, so it can be used for small size (SZ) vehicles.
- SZ small size
- FIG. 4 is a diagram referenced in the description of FIG. 3.
- the size of the vehicle display device 100 is SZa, which is smaller than the size (SZx) of the vehicle display device 100x of FIG. 2A.
- the size of the vehicle display device 100 according to an embodiment of the present disclosure is SZa, which is smaller than the size (SZy) of the vehicle display device 100y of FIG. 2B.
- FIG. 5 is a diagram illustrating an example of the internal configuration of a vehicle display device according to another embodiment of the present disclosure.
- the windshield (WS) may have a higher reflectance of S-polarized light than that of P-polarized light. Accordingly, the brightness of the S-polarization-based projection image may be higher.
- a P-polarized light reflecting film 415 is attached to the windshield WS.
- a vehicle display device 100b outputs a projected image to the first area Ra of the windshield WS to which the P polarizing reflective film 415 is attached.
- the image generating device 300 and the projected image reflected from the first area (Ra) of the windshield (WS) are transmitted to the second area (Rb) of the windshield (WS) to which the P polarizing reflective film 415 is attached. It includes a reflecting mirror 325.
- the projected image from the mirror 325 is reflected in the second area Rb of the windshield WS and output to the third area Ara.
- the third area (Ara) may correspond to the driver's gaze area. Accordingly, it is possible to reduce the size while implementing a projection image on a large screen.
- the vehicle display device 100b may further include a transparent cover 335 disposed between the image generating device 300 and the windshield WS. Accordingly, it is possible to output the projected image to the outside of the image generating device 300 while protecting the interior of the image generating device 300.
- FIG. 6 is a diagram illustrating an example of the internal configuration of a vehicle display device according to another embodiment of the present disclosure.
- a vehicle display device 100c includes an image generating device 300 that outputs a projected image in the direction of the windshield WS, and a display device 300 of the windshield WS. 1 It includes a mirror 325 that reflects the projected image reflected in area Ra toward the windshield WS.
- the vehicle display device 100c of FIG. 6 is similar to the vehicle display device 100 of FIG. 3, but there is a difference in the arrangement positions of the image generating device 300 and the mirror 325.
- the projected image from the mirror 325 is reflected in the second area Rb of the windshield WS and output to the third area Ara.
- the third area (Ara) may correspond to the driver's gaze area.
- the vehicle display device 100c uses two reflections from the windshield WS, so that the size can be reduced while sufficiently securing an optical path.
- the size of the vehicle display device 100c according to another embodiment of the present disclosure is SZb, which is the size (SZx) of the vehicle display device 100x of FIG. 2A or the size of the vehicle display device 100y of FIG. 2B. It becomes smaller than (SZy).
- the second area (Rb) of the windshield (WS) may be closer to the third area (Ara) than the first area (Ra) of the windshield (WS).
- the angle of incidence of the projection image incident on the first area Ra of the windshield WS may be greater than the angle of incidence of the projection image incident on the second area Rb of the windshield WS. Accordingly, it is possible to reduce the size while implementing a projection image on a large screen.
- the mirror 325 may be closer to the third area Ara than the image generating device 300.
- the position of the mirror 325 may be placed at a higher position than the position of the image generating device 300. Accordingly, it is possible to reduce the size while implementing a projection image on a large screen.
- the image generating device 300 may include a digital mirror device or a liquid crystal display panel. Accordingly, the projected image can be output to the outside of the image generating device 300.
- the first area Ra of the windshield WS may correspond to the black masking area or frit area FZ of FIG. 1 . Accordingly, the brightness of the projected image can be improved.
- the vehicle display device 100c may further include a transparent cover 335 disposed between the image generating device 300 and the windshield WS. Accordingly, it is possible to output the projected image to the outside of the image generating device 300 while protecting the interior of the image generating device 300.
- FIG. 7 is a diagram illustrating an example of the internal configuration of a vehicle display device according to another embodiment of the present disclosure.
- a P-polarized light reflecting film 415 is attached to the windshield WS.
- a vehicle display device 100d outputs a projected image to the first area Ra of the windshield WS to which the P polarizing reflective film 415 is attached.
- An image generating device 300 that transmits the projected image reflected from the first area Ra of the windshield WS to the second area Rb of the windshield WS to which the P polarizing reflective film 415 is attached. It includes a mirror 325 that reflects.
- the projected image from the mirror 325 is reflected in the second area Rb of the windshield WS and output to the third area Ara.
- the third area (Ara) may correspond to the driver's gaze area. Accordingly, it is possible to reduce the size while implementing a projection image on a large screen.
- the vehicle display device 100d of FIG. 7 is similar to the vehicle display device 100b of FIG. 5, but there is a difference in the arrangement positions of the image generating device 300 and the mirror 325.
- the vehicle display device 100d may further include a transparent cover 335 disposed between the image generating device 300 and the windshield WS. Accordingly, it is possible to output the projected image to the outside of the image generating device 300 while protecting the interior of the image generating device 300.
- 8A to 8B are diagrams illustrating various examples of the mirrors of FIGS. 3 to 7.
- Figure 8A is a diagram illustrating an example of a mirror.
- the mirror 325a of FIGS. 3 to 7 may be a concave mirror.
- the mirror 325a of FIGS. 3 to 7 may include a base 710 and a mirror coating member 720 formed on the base 710. Accordingly, the reflectance of the mirror 325a can be improved.
- the base 710 may be a depositable substrate such as glass or plastic.
- the mirror coating member 720 may be a reflective coating member through deposition of metal, dielectric, etc.
- Figure 8b is a diagram illustrating another example of a mirror.
- the mirror 325b of FIGS. 3 to 7 may be a concave mirror.
- the mirror 325b of FIGS. 3 to 7 includes a base 710, an optical adhesive film 715 formed on the base 710, and a reflective film 725 on the optical adhesive film 715. can do. Accordingly, the reflectance of the mirror 325b can be improved.
- the base 710 may be a depositable substrate such as glass or plastic.
- the optical adhesive film 715 may include Optically Clear Adhesive (OCA).
- the reflective film 725 may be an optical film that can be attached through lamination or the like.
- FIGS. 9A to 10B are diagrams referenced in the description of FIGS. 3 to 7.
- Figure 9A illustrates an example of the optical path of a projection image of P polarization.
- the image generating device 300 in the vehicle display devices 100, 100b, 100c, and 100d of FIGS. 3 to 7 includes a liquid crystal display panel, and the liquid crystal display panel outputs a projected image of P polarized light. can do.
- the image generating device 300 in the vehicle display devices 100, 100b, 100c, and 100d of FIGS. 3 to 7 includes a transparent cover 335 disposed between the image generating device 300 and the windshield WS. It may further include a phase retardation film 333 attached to the transparent cover 335.
- phase retardation film 333 may be provided with a quarter wave plate (QWP).
- QWP quarter wave plate
- the transparent cover 335 outputs a projection image of right-circular polarization ( ⁇ ) based on the projection image of P polarization to the first area (Ra) of the windshield (WS), and the mirror 325 outputs a projection image of right-circular polarization ( ⁇ ) to the first area (Ra) of the windshield (WS).
- a projection image of S-polarized light is output based on the projection image of left-circular polarization ( ⁇ ) from the first region Ra of (WS), and the transparent cover 335 outputs a projection image of left-circular polarization ( ⁇ ) based on the projection image of S-polarized light.
- the projection image of ⁇ ) can be output to the second area (Rb) of the windshield (WS). Accordingly, it is possible to reduce the size while implementing a projection image of left circular polarization ( ⁇ ) on a large screen.
- Figure 9b illustrates another example of the optical path of a projection image of P polarization.
- the image generating device 300 in the vehicle display devices 100, 100b, 100c, and 100d of FIGS. 3 to 7 includes a liquid crystal display panel, and the liquid crystal display panel outputs a projected image of P polarized light. can do.
- the image generating device 300 in the vehicle display devices 100, 100b, 100c, and 100d of FIGS. 3 to 7 includes a transparent cover 335 disposed between the image generating device 300 and the windshield WS. It may further include.
- a phase retardation film 333 may be attached to the first area Ra of the windshield WS.
- phase retardation film 333 may be provided with a quarter wave plate (QWP).
- QWP quarter wave plate
- the mirror 325 reflects the projected image of S-polarized light from the first area Ra of the windshield WS
- the transparent cover 335 reflects the projected image of S-polarized light into the windshield WS. It can be output to the second area (Rb). Accordingly, it is possible to reduce the size while implementing a projection image of S-polarized light on a large screen.
- FIG. 10A is a diagram illustrating an optical path in the vehicle display device 100 of FIG. 3.
- the image generating device 300 which is closer to the third area Ara than the mirror 325, outputs a plurality of lights to the first area Ra of the windshield WS.
- the mirror 325 reflects a plurality of lights that are primarily reflected in the first area (Ra) of the windshield (WS) and reflects the light to the windshield (WS) at a higher position than the first area (Ra) of the windshield (WS). It is output to the second area (Rb) of WS).
- a plurality of lights that are secondary reflected from the second area (Rb) of the windshield (WS) are incident on the third area (Ara) corresponding to the user's gaze area.
- the driver perceives a virtual image in the opposite direction of the windshield WS.
- FIG. 10B is a diagram illustrating an optical path in the vehicle display device 100c of FIG. 6.
- the image generating device 300 disposed farther in the third area Ara than the mirror 325 outputs a plurality of lights to the first area Ra of the windshield WS.
- the mirror 325 reflects a plurality of lights that are primarily reflected in the first area (Ra) of the windshield (WS) and reflects the light to the windshield (WS) at a higher position than the first area (Ra) of the windshield (WS). It is output to the second area (Rb) of WS).
- a plurality of lights that are secondary reflected from the second area (Rb) of the windshield (WS) are incident on the third area (Ara) corresponding to the user's gaze area.
- the driver perceives a virtual image in the opposite direction of the windshield WS.
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Abstract
Description
Claims (15)
- 투사 영상을 윈드쉴드의 방향으로 출력하는 영상 생성 장치;상기 윈드쉴드의 제1 영역에서 반사되는 투사 영상을, 상기 윈드쉴드 방향으로 반사하는 미러;를 포함하고,상기 미러로부터의 투사 영상은, 상기 윈드쉴드의 제2 영역에서 반사되어 제3 영역으로 출력되는 차량용 디스플레이 장치.
- 제1항에 있어서,상기 윈드쉴드의 상기 제1 영역 보다 상기 윈드쉴드의 상기 제2 영역이, 상기 제3 영역에 더 근접한 것인 차량용 디스플레이 장치.
- 제1항에 있어서,상기 윈드쉴드의 상기 제1 영역으로 입사되는 상기 투사 영상의 입사각이, 상기 윈드쉴드의 상기 제2 영역으로 입사되는 상기 투사 영상의 입사각 보다 더 큰 것인 차량용 디스플레이 장치.
- 제1항에 있어서,상기 영상 생성 장치가 상기 미러 보다 상기 제3 영역에 더 근접한 것인 차량용 디스플레이 장치.
- 제1항에 있어서,상기 미러가 상기 영상 생성 장치 보다 상기 제3 영역에 더 근접한 것인 차량용 디스플레이 장치.
- 제1항에 있어서,상기 영상 생성 장치와 상기 윈드쉴드 사이에 배치되는 투명 커버;를 포함하는 것인 차량용 디스플레이 장치.
- 제1항에 있어서,상기 영상 생성 장치는,디지털 미러 장치 또는 액정 표시 패널을 구비하는 것인 차량용 디스플레이 장치.
- 제1항에 있어서,상기 영상 생성 장치는,P 편광 반사 필름이 부착되는 상기 윈드쉴드의 상기 제1 영역에, 투사 영상을 출력하고,상기 미러는,상기 P 편광 반사 필름이 부착되는 상기 윈드쉴드의 상기 제2 영역에, 투사 영상을 반사하는 것인 차량용 디스플레이 장치.
- 제1항에 있어서,상기 윈드쉴드의 상기 제1 영역은, 블랙 마스킹 영역 또는 프릿(frit) 영역에 대응하는 것인 차량용 디스플레이 장치.
- 제9항에 있어서,상기 영상 생성 장치와 상기 윈드쉴드 사이에 배치되는 투명 커버;상기 투명 커버에 부착되는 위상 지연 필름;을 더 포함하고,상기 영상 생성 장치는, 액정 표시 패널을 포함하고,상기 액정 표시 패널은 P 편광의 투사 영상을 출력하고,상기 투명 커버는, P 편광의 투사 영상에 기초하여 우원 편광의 투사 영상을 상기 윈드쉴드의 상기 제1 영역으로 출력하고,상기 미러는, 상기 윈드쉴드의 상기 제1 영역으로부터의 좌원 편광의 투사 영상에 기초하여 S 편광의 투사 영상을 출력하고,상기 투명 커버는, 상기 S 편광의 투사 영상에 기초하여 좌원 편광의 투사 영상을 상기 윈드쉴드의 상기 제2 영역으로 출력하는 것인 차량용 디스플레이 장치.
- 제1항에 있어서,상기 영상 생성 장치와 상기 윈드쉴드 사이에 배치되는 투명 커버;를 더 포함하고,상기 윈드쉴드의 상기 제1 영역에, 위상 지연 필름이 부착되고,상기 영상 생성 장치는, 액정 표시 패널을 포함하고,상기 액정 표시 패널은 P 편광의 투사 영상을 출력하고,상기 미러는, 상기 윈드쉴드의 상기 제1 영역으로부터의 S 편광의 투사 영상을 반사하고,상기 투명 커버는, 상기 S 편광의 투사 영상을 상기 윈드쉴드의 상기 제2 영역으로 출력하는 것인 차량용 디스플레이 장치.
- 제1항에 있어서,상기 미러는,베이스;상기 베이스 상에 형성되는 미러 코팅 부재;를 포함하는 것인 차량용 디스플레이 장치.
- 제1항에 있어서,상기 미러는,베이스;상기 베이스 상에 형성되는 광접착 필름;상기 광접착 필름 상의 반사 필름;을 포함하는 것인 차량용 디스플레이 장치.
- 제1항에 있어서,상기 영상 생성 장치에서 출력되는 투사 영상의 1차 반사 이전의 광 경로는, 상기 1차 반사 이후 2차 반사 이전 까지의 광 경로 보다 더 긴 것인 차량용 디스플레이 장치.
- 투사 영상을 윈드쉴드의 방향으로 출력하는 영상 생성 장치;상기 윈드쉴드에서 1차 반사되는 투사 영상을, 상기 윈드쉴드 방향으로 반사하는 미러;를 포함하고,상기 미러로부터의 투사 영상은, 상기 윈드쉴드에서 2차 반사되며,상기 영상 생성 장치에서 출력되는 투사 영상의 1차 반사 이전의 광 경로는, 상기 1차 반사 이후 2차 반사 이전 까지의 광 경로 보다 더 긴 차량용 디스플레이 장치.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202380081841.7A CN120283191A (zh) | 2022-11-04 | 2023-07-19 | 车辆用显示装置 |
| KR1020257018166A KR20250107858A (ko) | 2022-11-04 | 2023-07-19 | 차량용 디스플레이 장치 |
| EP23885952.4A EP4614211A4 (en) | 2022-11-04 | 2023-07-19 | VEHICLE DISPLAY DEVICE |
| US19/197,048 US20250258373A1 (en) | 2022-11-04 | 2025-05-02 | Display device for vehicle |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20220146158 | 2022-11-04 | ||
| KR10-2022-0146158 | 2022-11-04 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US19/197,048 Continuation US20250258373A1 (en) | 2022-11-04 | 2025-05-02 | Display device for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024096255A1 true WO2024096255A1 (ko) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/KR2023/010343 Ceased WO2024096255A1 (ko) | 2022-11-04 | 2023-07-19 | 차량용 디스플레이 장치 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250258373A1 (ko) |
| EP (1) | EP4614211A4 (ko) |
| KR (1) | KR20250107858A (ko) |
| CN (1) | CN120283191A (ko) |
| WO (1) | WO2024096255A1 (ko) |
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| JP4474711B2 (ja) | 2000-01-25 | 2010-06-09 | 株式会社日本自動車部品総合研究所 | ヘッドアップディスプレイ |
| US20120224062A1 (en) | 2009-08-07 | 2012-09-06 | Light Blue Optics Ltd | Head up displays |
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| KR20190079173A (ko) * | 2017-12-27 | 2019-07-05 | 엘지디스플레이 주식회사 | 헤드업 표시 장치 |
| WO2022022886A1 (de) * | 2020-07-29 | 2022-02-03 | Saint-Gobain Glass France | Projektionsanordnung für ein head-up-display (hud) mit p-polarisierter strahlung |
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| CN101334530B (zh) * | 2007-06-27 | 2011-01-19 | 先进微系统科技股份有限公司 | 抬头显示系统 |
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- 2023-07-19 CN CN202380081841.7A patent/CN120283191A/zh active Pending
- 2023-07-19 EP EP23885952.4A patent/EP4614211A4/en active Pending
- 2023-07-19 KR KR1020257018166A patent/KR20250107858A/ko active Pending
-
2025
- 2025-05-02 US US19/197,048 patent/US20250258373A1/en active Pending
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| JP4474711B2 (ja) | 2000-01-25 | 2010-06-09 | 株式会社日本自動車部品総合研究所 | ヘッドアップディスプレイ |
| US20120224062A1 (en) | 2009-08-07 | 2012-09-06 | Light Blue Optics Ltd | Head up displays |
| US20160004081A1 (en) * | 2013-02-28 | 2016-01-07 | Nippon Seiko Co., Ltd. | Headup display device |
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| KR20190079173A (ko) * | 2017-12-27 | 2019-07-05 | 엘지디스플레이 주식회사 | 헤드업 표시 장치 |
| WO2022022886A1 (de) * | 2020-07-29 | 2022-02-03 | Saint-Gobain Glass France | Projektionsanordnung für ein head-up-display (hud) mit p-polarisierter strahlung |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP4614211A1 (en) | 2025-09-10 |
| CN120283191A (zh) | 2025-07-08 |
| KR20250107858A (ko) | 2025-07-14 |
| US20250258373A1 (en) | 2025-08-14 |
| EP4614211A4 (en) | 2026-01-14 |
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