WO2020235376A1 - Dispositif d'affichage - Google Patents

Dispositif d'affichage Download PDF

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Publication number
WO2020235376A1
WO2020235376A1 PCT/JP2020/018799 JP2020018799W WO2020235376A1 WO 2020235376 A1 WO2020235376 A1 WO 2020235376A1 JP 2020018799 W JP2020018799 W JP 2020018799W WO 2020235376 A1 WO2020235376 A1 WO 2020235376A1
Authority
WO
WIPO (PCT)
Prior art keywords
lenticular lens
display panel
optical axis
light emitted
flat display
Prior art date
Application number
PCT/JP2020/018799
Other languages
English (en)
Japanese (ja)
Inventor
毅 笠原
Original Assignee
日本精機株式会社
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 日本精機株式会社 filed Critical 日本精機株式会社
Priority to JP2021520710A priority Critical patent/JPWO2020235376A1/ja
Publication of WO2020235376A1 publication Critical patent/WO2020235376A1/fr

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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
    • 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
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
    • G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/305—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using lenticular lenses, e.g. arrangements of cylindrical lenses

Definitions

  • the present invention relates to a display device capable of projecting light onto a display unit to provide information.
  • Some vehicles are equipped with a display device (head-up display device) that provides necessary information to the driver (viewer) by projecting light onto a display unit such as a windshield.
  • a display device head-up display device
  • a display unit such as a windshield
  • the display device shown in Patent Document 1 includes a projector that emits light, a screen through which the light emitted from the projector passes, and a case that houses these projectors and the screen. ..
  • the projector is a projector equipped with an optical element such as a DMD (Digital Mirror Device).
  • the screen is a transmissive screen arranged at the imaging position of the light emitted from the projector.
  • the surface through which the light of the screen passes is provided so as to be inclined with respect to the surface from which the light of the projector is emitted. That is, the screen is provided at an angle with respect to the optical axis of the light emitted from the projector.
  • the surface through which the light of the screen passes is provided so as to be inclined with respect to the surface from which the light of the projector is emitted, so that the driver can recognize a deep virtual image.
  • the display device of Patent Document 1 includes a projector, a screen, a folded mirror, a concave mirror, a cover glass, an exterior, and a control unit.
  • the projector projects an image onto a screen, and the image reflected by this screen is magnified by a concave mirror and then emitted to a windshield.
  • the display device is a device for making the viewer recognize information and the like, it is desired that the viewer recognize the virtual image more clearly.
  • An object of the present invention is to provide a display device capable of allowing a viewer to recognize a virtual image more clearly.
  • the invention according to claim 1 comprises a 3D display including a flat display panel in which a plurality of pixels are alternately arranged to emit light, and a lenticular lens in which a plurality of substantially semi-cylindrical cylindrical lenses are arranged in parallel with each other. It has a control unit that controls the light emitted from the 3D display.
  • a display device that projects light emitted from the 3D display onto a display unit to allow a viewer to recognize a virtual image.
  • the flat display panel and the lenticular lens are tilted at the same predetermined angle with respect to the optical axis of the light emitted from the flat display panel.
  • the lenticular lens is characterized in that it is at a position where the flat display panel is translated along the optical axis and has a size that allows all the light emitted from the flat display panel to pass through.
  • the flat display panel and the lenticular lens are rectangular in front view.
  • the four rectangular corners of the lenticular lens coincide with the four rectangular corners of the flat display panel.
  • the lenticular lens is arranged so as to be inclined in the extending direction of the cylindrical lens with respect to the optical axis of light emitted from the plane display panel.
  • the shape of the exit side surface of the lenticular lens is an arc shape in a cross section along the optical axis, and an elliptical shape in a plan view of the lenticular lens.
  • the lenticular lens is arranged so as to be inclined in the extending direction of the cylindrical lens with respect to the optical axis of the light emitted from the plane display panel.
  • External light incident on the display unit from the outside of the display device is reflected by the lenticular lens. Since the lenticular lens is arranged at an angle with respect to the optical axis, the external light is reflected in a direction different from the light emitted from the plane display panel. As a result, it is possible to suppress the external light from interfering with the light emitted from the flat display panel, and to make the viewer recognize the virtual image more clearly.
  • the lenticular lens is a position where the flat display panel is translated along the optical axis and has a size that allows all the light emitted from the flat display panel to pass through, the pixels of the flat display panel are used without waste. However, the utilization efficiency of pixels can be improved.
  • the flat display panel and the lenticular lens are rectangular in front view.
  • the four rectangular corners of the lenticular lens coincide with the four rectangular corners of the flat display panel, so both the pixels of the flat display panel and the lenticular lens are used without waste, and the pixels and lenticular lens are used.
  • the utilization efficiency of the lens can be improved.
  • the shape of the exit side surface of the lenticular lens is an elliptical shape in a plan view of the lenticular lens and an arc shape in a cross section along the optical axis.
  • the cross-sectional shape of a general lenticular lens on the light emitting side is an arc shape in a plan view. Therefore, by arranging the lenticular lens at an angle with respect to the optical axis, the cross section along the optical axis becomes an elliptical shape having a semimajor axis larger than the radius of the arc.
  • the shape of the lenticular lens is made elliptical in a plan view so that the cross section along the optical axis is an arc shape. Since the shape of the exit side surface of the lenticular lens is an arc shape in a cross section along the optical axis, lens aberration can be reduced and the sharpness of a stereoscopic image can be improved.
  • FIG. 1 It is a schematic diagram of the display device according to the Example of this invention. It is a perspective view of the 3D display which concerns on Example. It is a top view of the lenticular lens shown in FIG. It is a figure which shows the cross-sectional shape along the optical axis of the lenticular lens shown in FIG. It is the side view of the 3D display of an Example, and the side view of the 3D display of a comparative example. It is a figure explaining the lenticular lens by the comparative example. It is a perspective view of the 3D display which concerns on a comparative example.
  • the left and right refer to the left and right with respect to the occupant (viewer) in the vehicle
  • the front and rear mean the front and rear with reference to the traveling direction of the vehicle.
  • Le is left
  • Ri right
  • Fr is front
  • Rr rear
  • Up up
  • Dn down.
  • a head-up display is shown as an example of a display device.
  • the display device 10 is mounted on the vehicle Ve, for example, and projects light onto the windshield WS (display unit WS) at the front of the vehicle body.
  • the driver Mn viewer Mn
  • the virtual image V is projected in front of the windshield WS.
  • the upper part of the virtual image V projected by the display device 10 is tilted toward the front side of the vehicle Ve.
  • the driver Mn can obtain necessary information during driving.
  • the display device 10 includes a case 20, a 3D display 30 (light field display 30) housed in the case 20 and emitting light, a plane mirror 40 that reflects light emitted from the 3D display 30, and the plane mirror 40. It has a concave mirror 50 that reflects the reflected light toward the windshield WS, a cover glass 60 arranged above the concave mirror 50, and a control unit 12 that controls the light emitted by the 3D display 30. ..
  • the 3D display 30 is arranged directly under the windshield WS.
  • the case 20 is made of a synthetic resin having a light-shielding property. Therefore, it can be said that the case 20 is a light-shielding portion that prevents light incident on the 3D display 30 from the outside from being reflected inside the vehicle interior. Further, the inner wall 20a of the case 20 can be referred to as a light-shielding portion.
  • a flat display panel 32 in which a plurality of pixels 31 are alternately arranged to emit light and a plurality of semi-cylindrical cylindrical lenses 33 extending in a predetermined direction are arranged side by side. It has a lenticular lens 34.
  • the flat display panel 32 includes, for example, a backlight 32a and a liquid crystal panel 32b, and has a plurality of pixels 31 that emit light toward the cylindrical lens 33.
  • the light emitted by the flat display panel 32 is a bundle of light emitted by each pixel 31.
  • Each pixel 31 is composed of red, green, and blue sub-pixels.
  • the sub-pixels emit light, light is emitted toward each cylindrical lens 33.
  • the brightness, hue, and saturation of the light emitted from the pixel 31 can be made different.
  • the lenticular lens 34 includes, for example, a transparent polycarbonate flat plate-shaped base plate portion 33a, and a cylindrical lens 33 extending in a predetermined direction on the base plate portion 33a and being arranged in plurality in a predetermined direction and through which light emitted from the pixel 31 passes. doing.
  • the predetermined direction in which the cylindrical lens 33 extends is the vertical direction of the viewpoint of the viewer Mn.
  • the plurality of cylindrical lenses 33 extending in the vertical direction in this way are arranged side by side periodically.
  • the lenticular lens 34 is cut on the base plate portion 33a so that vertically long cylindrical lenses 33 that collect light with respect to the cross section are arranged side by side (left and right).
  • the cylindrical lens 33 has a so-called semi-cylindrical shape (D-shape), and the vertically long semi-cylindrical lens 33 arranged side by side becomes the lenticular lens 34.
  • the lenticular lens 34 refracts the light emitted from each pixel 31 in a predetermined direction.
  • the lenticular lens 34 is tilted toward the inner wall 20a so that the external light incident on the lenticular lens 34 from the outside of the case 20 is reflected toward the inner wall 20a as a light-shielding portion.
  • the lenticular lens 34 is made of, for example, fused silica, optical glass, plastic or the like.
  • the base plate portion 33a is provided parallel to the surface of the flat display panel 32 that emits light.
  • the cross-sectional shape of the cylindrical lens 33 on the exit side includes, for example, a convex shape, a spherical shape, an aspherical shape, and the like.
  • Each cylindrical lens 33 is provided corresponding to each pixel 31 and refracts the light emitted from each pixel 31.
  • the light emitted by the 3D display 30 refers to the light emitted from each pixel 31 (planar display panel 32) and passed through the lenticular lens 34. That is, it can be said that the light emitted from each pixel 31 passes through the lenticular lens 34, so that the light is emitted from the 3D display 30.
  • the cross section including the predetermined horizontal axis X (axis extending in the horizontal direction) of the lenticular lens 34 and including the optical axis F of the light emitted from the 3D display 30 is S1.
  • the cross section including the predetermined horizontal axis X (axis extending in the horizontal direction) of the lenticular lens 34 and perpendicular to the lenticular lens 34 is S2.
  • the cross section S2 perpendicular to the cross section S1 including the optical axis F is inclined so as to have an inclination angle ⁇ . That is, the lenticular lens 34 is arranged so as to be inclined so as to have an inclination angle ⁇ in the extending direction of the cylindrical lens 33 with respect to the optical axis F of the light emitted from the plane display panel 32.
  • the flat display panel 32 and the lenticular lens 34 are tilted at the same predetermined angle (tilt angle) ⁇ with respect to the optical axis F.
  • the lenticular lens 34 is located at a position where the flat display panel 32 is translated along the optical axis F, and is set to a size that allows all the light emitted from the flat display panel 32 to pass through.
  • the flat display panel 32 and the lenticular lens 34 are rectangular in front view, and the four rectangular corners of the lenticular lens 34 coincide with the four rectangular corners of the flat display panel 32 along the optical axis F.
  • the lenticular lens 34 By arranging the lenticular lens 34 at an angle of inclination ⁇ with respect to the optical axis F, it is possible to prevent the light reflected on the surface of the 3D display 30 from returning to the viewpoint when the external light G is incident. it can.
  • the tilt angle ⁇ in the schematicly shown drawing is increased, but the actual tilt angle ⁇ is set so that the light reflected on the surface of the 3D display 30 does not return to the viewpoint when the external light G is incident. It is a small angle.
  • the plane mirror 40 is a mirror in which a metal, for example, aluminum is vapor-deposited on a resin, for example, polycarbonate, which is molded so as to have a flat portion, and simply reflects light.
  • the concave mirror 50 is a mirror in which a metal, for example, aluminum is vapor-deposited on a resin, for example, polycarbonate, which is molded so as to have a concave surface, and reflects parallel light so as to collect it.
  • a metal for example, aluminum
  • a resin for example, polycarbonate
  • the cover glass 60 is a transparent resin, for example, a polycarbonate film.
  • the case 20 is a housing that accommodates all the above-mentioned parts.
  • the control unit 12 is composed of a microprocessor, various electronic components for operating the microprocessor, a board, and a case, and processes vehicle information and user input from the outside, and 3D display 30 so as to appropriately display an image based on the processing. To control. Specifically, the control unit 12 controls the direction of the light emitted by the 3D display 30 so that the light that has passed through the lenticular lens 34 is projected onto the windshield WS. That is, the control unit 12 controls the light emitted by each pixel 31 so that the light passing through the lenticular lens 34 goes in a predetermined direction.
  • the driver Mn recognizes that the light emitted from the 3D display 30 is projected onto the windshield WS to project a virtual image V whose angle is tilted forward by ⁇ . In such a virtual image V, a different image is projected for each viewpoint. That is, in order for the driver Mn to visually recognize the deep virtual image V, the 3D display 30 needs to project an image with an appropriate parallax for each viewpoint.
  • the control unit 12 continuously emits light having a different imaging position from one end to the other end of the lenticular lens 34, and each pixel 31 allows the virtual image V whose upper portion is tilted forward to be visually recognized. Controls the light emitted by. Further, the control unit 12 can control the light emitted from each pixel 31 to freely change the imaging position of the light emitted from the lenticular lens 34. As a result, the tilt angle of the virtual image V can be freely changed. By controlling the light emitted from each pixel 31, the control unit 12 projects an arbitrary virtual image V visually recognized by the driver Mn.
  • the exit side surface which is the surface on which light is emitted, has an elliptical shape in the plan view of the lenticular lens 34.
  • the most protruding position of the lenticular lens 34 is the position of the minor axis radius of the ellipse.
  • the cross-sectional shape of the lenticular lens 34 is the cross-sectional shape of the lenticular lens 34 in the cross section S1 including the optical axis F.
  • the cross-sectional shape of the lenticular lens 34 on the exit side is an arc shape with a cross section S1 along the optical axis F.
  • FIG. 5A is a side view of the 3D display 30 of the embodiment, in which the liquid crystal panel 32b and the lenticular lens 34 are arranged at an angle with respect to the optical axis F of the light emitted from the backlight 32a. ..
  • the lenticular lens 34 is arranged parallel to the liquid crystal panel 32b.
  • the vertical line T passing through the center of the liquid crystal panel 32b does not pass through the center of the lenticular lens 34.
  • the line F1 parallel to the optical axis F passing through the upper end portion of the liquid crystal panel 32b passes through the upper end portion of the lenticular lens 34.
  • the line F2 parallel to the optical axis F passing through the lower end portion of the liquid crystal panel 32b passes through the lower end portion of the lenticular lens 34. Therefore, all the light that has passed through the liquid crystal panel 32b passes through the lenticular lens 34.
  • FIG. 5B is a side view of the 3D display 100 of the comparative example, in which the liquid crystal panel 102 and the lenticular lens 103 are arranged at an angle with respect to the optical axis F of the light emitted from the backlight 101. ..
  • the lenticular lens 103 is arranged parallel to the liquid crystal panel 102.
  • the flat display panel 104 is composed of the backlight 101 and the liquid crystal panel 102.
  • the vertical line T passing through the center of the liquid crystal panel 102 passes through the center of the lenticular lens 103.
  • the line F1 parallel to the optical axis F passing through the upper end portion of the liquid crystal panel 102 does not pass through the upper end portion of the lenticular lens 103.
  • the line F2 parallel to the optical axis F passing through the lower end portion of the liquid crystal panel 102 does not pass through the lower end portion of the lenticular lens 103. Therefore, a part of the light that has passed through the liquid crystal panel 102 passes through the lenticular lens 34, and the upper part of the liquid crystal panel 102 and the lower part of the lenticular lens 103 are wasted.
  • FIG. 6A shows a lenticular lens 103 as a comparative example in a plan view.
  • the shape of the lenticular lens 103 on the exit surface side is an arc shape in a plan view.
  • the cross-sectional shape of the lenticular lens 103 of the comparative example is the cross-sectional shape of the lenticular lens 103 in the cross section S1 including the optical axis F.
  • the cross-sectional shape of the lenticular lens 103 on the exit surface side is an elliptical shape having a major axis radius larger than the radius of the arc in the cross-sectional shape S1 along the optical axis F.
  • the shape of the exit side surface of the lenticular lens is an arc shape in a cross section along the optical axis, the lens aberration becomes large and the sharpness of the stereoscopic image is lowered.
  • the flat display panel 104 and the lenticular lens 103 are tilted at the same predetermined angle ⁇ with respect to the optical axis F.
  • the vertical line T1 passing through the upper end portion of the flat display panel 104 passes through the upper end portion of the lenticular lens 103.
  • the vertical line T2 passing through the lower end portion of the flat display panel 104 passes through the lower end portion of the lenticular lens 103.
  • the line F3 that passes through the upper end portion of the lenticular lens 103 and is parallel to the optical axis F passes through the vertical intermediate portion of the plane display panel 104.
  • the line F4 that passes through the lower end of the lenticular lens 103 and is parallel to the optical axis F passes below the lower end of the flat surface display panel 104.
  • the pixel 105 in the region S3 is not used and is wasted. Further, since the pixel 105 is insufficient in the region S4 below the flat display panel 104, the lower region of the lenticular lens 103 is not used and is wasted.
  • the stereoscopic image L generated by the 3D display 30 is reflected by the plane mirror 40 to the concave mirror 50, enlarged and reflected by the concave mirror 50 to the cover glass 60, transmitted through the cover glass 60, and is transmitted by the windshield WS. It is enlarged and reflected by the viewer Mn, and is observed as a virtual image V from the viewpoint of the viewer Mn.
  • the four corners of the flat display panel 32 (liquid crystal panel 32b) along the optical axis coincide with the four corners of the lenticular lens 34. Therefore, the light emitted from the flat display panel 32 passes through the lenticular lens 34 without being wasted. That is, the utilization efficiency of the pixel 31 is improved. Further, the lenticular lens 34 also has no wasted portion through which light does not pass. As a result, the flat display panel 32 and the lenticular lens 34 are efficiently used.
  • the lenticular lens 34 is arranged so as to be inclined in the extending direction of the cylindrical lens 33 with respect to the optical axis F of the light emitted from the plane display panel 32.
  • the external light G incident on the display unit from the outside of the display device 10 is reflected by the lenticular lens 34. Since the lenticular lens 34 is arranged at an angle with respect to the optical axis F, the external light G is directed in a direction different from the light emitted from the plane display panel 32 (light along the optical axis F). Is reflected. As a result, it is possible to prevent the external light G from interfering with the light emitted from the plane display panel 32, and to make the viewer recognize the virtual image V more clearly.
  • the flat display panel 32 and the lenticular lens 34 are tilted at the same predetermined angle ⁇ with respect to the optical axis F of the light emitted from the flat display panel 32. Since the lenticular lens 34 is a position where the flat display panel 32 is translated along the optical axis F and has a size that allows all the light emitted from the flat display panel 32 to pass through, the pixel 31 of the flat display panel 32 Can be used without waste, and the utilization efficiency of the pixel 31 can be improved.
  • the flat display panel 32 and the lenticular lens 24 are rectangular in front view. Since the four rectangular corners of the lenticular lens 24 coincide with the four rectangular corners of the flat display panel 32 along the optical axis F, both the pixel 31 of the flat display panel 32 and the lenticular lens 34 are not wasted. By using it, the utilization efficiency of the pixel 31 and the lenticular lens 34 can be improved.
  • the shape of the exit side surface of the lenticular lens 34 is an elliptical shape (FIG. 3) in a plan view of the lenticular lens 34, and an arc shape (FIG. 4) in a cross section along the optical axis F.
  • the cross-sectional shape of the general lenticular lens 103 on the light emitting side is an arc shape in a plan view (FIG. 6A). Therefore, by arranging the lenticular lens at an angle with respect to the optical axis, the cross section along the optical axis becomes an elliptical shape having a semimajor axis larger than the radius of the arc (FIG. 6B).
  • the shape of the lenticular lens 34 is made elliptical in a plan view so that the cross section along the optical axis F has an arc shape. Since the shape of the exit side surface of the lenticular lens 34 is an arc shape in a cross section along the optical axis F, the lens aberration is reduced and the sharpness of the stereoscopic image can be improved.
  • the 3D display 30 is a light field display, it can be arranged directly under the windshield WS, eliminating the need for a screen arranged at an angle as in the prior art, and providing a depth along the optical axis.
  • the length can be shortened, and the display device 10 can be downsized.
  • the image of the oblique surface can be adjusted by controlling the position of the light emitting pixel of the flat display panel 32, the mounting tolerance can be relaxed and the manufacturing cost can be reduced.
  • the image data processing method for the head-up display according to the present invention may be applied to a two-wheeled vehicle or a three-wheeled vehicle in addition to a four-wheeled vehicle. Furthermore, it can be applied to vehicles other than vehicles, construction machinery, and the like.
  • the display unit is described as a windshield.
  • the display device according to the present invention can also project light onto a display unit including a so-called combiner.
  • the flat display panel 32 and the lenticular lens 34 have a rectangular shape, and the four corners of the flat display panel 32 and the lenticular lens 34 have a shape that coincides with each other along the optical axis F.
  • the size of the lenticular lens 34 may be larger than that of the flat display panel 32 without limitation.
  • the flat display panel 32 and the lenticular lens 34 are not rectangular, but may be circular or polygonal, and the shape is not limited.
  • the present invention is not limited to the examples as long as the actions and effects of the present invention are exhibited.
  • the display device of the present invention is suitable for mounting on a vehicle.
  • 10 Display device (head-up display), 12 ... Control unit, 30 ... 3D display (light field display), 32 ... Flat display panel, 33 ... Cylindrical lens, 34 ... Wrenchular lens, Mn ... Viewer (driver), Ve ... vehicle, V ... virtual image (image), WS ... display unit (windshield), F ... optical axis, T ... vertical line, ⁇ ... tilt angle, S1 ... cross section along the optical axis, S2 ... in plan view cross section.

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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)
  • Multimedia (AREA)
  • Signal Processing (AREA)

Abstract

L'invention a pour objet de fournir un dispositif d'affichage permettant une miniaturisation.　Le dispositif d'affichage (10) de l'invention possède : un écran 3D (30) qui est constitué d'un panneau d'affichage plat (32), et d'une lentille lenticulaire (34) constituée par juxtaposition en parallèle les unes par rapport aux autres d'une pluralité de lentilles cylindriques (33) de forme sensiblement demi-cylindrique ; et une partie commande qui commande la lumière émise en sortie par cet écran 3D (30). Le panneau d'affichage plat (32) et la lentille lenticulaire (34) sont inclinés selon un même angle prédéfini vis-à-vis d'un axe optique (F). La lentille lenticulaire (34) se trouve en une position de déplacement parallèle du panneau d'affichage plat (32) suivant l'axe optique (F), et présente une dimension telle qu'elle est traversée par l'ensemble de la lumière émise en sortie par le panneau d'affichage plat (32).
PCT/JP2020/018799 2019-05-20 2020-05-11 Dispositif d'affichage WO2020235376A1 (fr)

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JP2021520710A JPWO2020235376A1 (fr) 2019-05-20 2020-05-11

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019094600 2019-05-20
JP2019-094600 2019-05-20

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WO2020235376A1 true WO2020235376A1 (fr) 2020-11-26

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017094248A1 (fr) * 2015-12-01 2017-06-08 パナソニックＩｐマネジメント株式会社 Lentille à surface de forme libre et affichage tête haute
JP2018146882A (ja) * 2017-03-08 2018-09-20 パナソニックＩｐマネジメント株式会社 画像投写装置
CN108919495A (zh) * 2018-08-01 2018-11-30 张家港康得新光电材料有限公司 一种3d抬头显示系统及其设计方法、汽车

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017094248A1 (fr) * 2015-12-01 2017-06-08 パナソニックＩｐマネジメント株式会社 Lentille à surface de forme libre et affichage tête haute
JP2018146882A (ja) * 2017-03-08 2018-09-20 パナソニックＩｐマネジメント株式会社 画像投写装置
CN108919495A (zh) * 2018-08-01 2018-11-30 张家港康得新光电材料有限公司 一种3d抬头显示系统及其设计方法、汽车

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