WO2020049724A1 - Dispositif d'affichage - Google Patents

Dispositif d'affichage Download PDF

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Publication number
WO2020049724A1
WO2020049724A1 PCT/JP2018/033231 JP2018033231W WO2020049724A1 WO 2020049724 A1 WO2020049724 A1 WO 2020049724A1 JP 2018033231 W JP2018033231 W JP 2018033231W WO 2020049724 A1 WO2020049724 A1 WO 2020049724A1
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WIPO (PCT)
Prior art keywords
light
emission member
optical element
display device
present
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PCT/JP2018/033231
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English (en)
Japanese (ja)
Inventor
田中　真人
Original Assignee
株式会社島津製作所
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Application filed by 株式会社島津製作所 filed Critical 株式会社島津製作所
Priority to PCT/JP2018/033231 priority Critical patent/WO2020049724A1/fr
Publication of WO2020049724A1 publication Critical patent/WO2020049724A1/fr

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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
    • G02B27/01—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
    • G02B27/02—Viewing or reading apparatus
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements

Definitions

  • the present invention relates to a display device.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2007-298588
  • the display device described in Patent Literature 1 includes an optical element and an emission mechanism that emits image display light toward the optical element.
  • an emission member that emits image display light must be arranged so as not to be located on the optical path of image display light reflected by the concave mirror, which increases the size of the optical system. I do.
  • the present invention has been made in view of the above problems, and has as its object to provide a display device in which an optical system is downsized.
  • the display device includes an optical element and an emission member.
  • the emission member emits the image display light toward the optical element.
  • the emission member transmits at least a part of the image display light reflected by the optical element.
  • the optical element is disposed in front of the observer.
  • the emission member is arranged between the observer and the optical element.
  • the emission member transmits at least a part of the image display light reflected by the optical element to the observer side.
  • the emission member transmits at least a part of the transmitted light that has entered the optical element from the outside and transmitted through the optical element to the observer side.
  • the emission member has a curved shape.
  • the optical element has a curved shape and is arranged coaxially with the emission member.
  • the size of the optical system of the display device can be reduced.
  • FIG. 1 is a schematic diagram illustrating a configuration of a display device according to a first embodiment of the present invention.
  • FIG. 4 is a schematic diagram illustrating a configuration of a display device according to a second embodiment of the present invention.
  • FIG. 9 is a schematic diagram illustrating a configuration of a display device according to a third embodiment of the present invention. It is a schematic diagram which shows the structure of the light emission part and the light source part with which the display apparatus which concerns on Embodiment 4 of this invention is provided.
  • FIG. 14 is a schematic diagram illustrating a configuration of an emission member and a light source unit included in a display device according to a fifth embodiment of the present invention.
  • FIG. 15 is a schematic diagram illustrating a configuration of an emission member and a light source unit included in a display device according to a sixth embodiment of the present invention.
  • FIG. 14 is a schematic diagram illustrating a configuration of a display device according to a seventh embodiment of the present invention.
  • FIG. 1 is a schematic diagram illustrating a configuration of a display device according to Embodiment 1 of the present invention.
  • the display device 100 according to the first embodiment of the present invention is a head-mounted display
  • the display device 100 is not limited to a head-mounted display, and may be another display device such as a head-up display.
  • the display device 100 includes an optical element 120 and an emission member 110.
  • the optical element 120 is arranged in front of the observer E.
  • the emission member 110 is arranged between the observer E and the optical element 120.
  • the emission member 110 emits the image display light L1 toward the optical element 120.
  • the emission member 110 transmits at least a part of the image display light L2 reflected by the optical element 120 to the observer E side.
  • the emission member 110 transmits at least a part of the external light L12 that has entered the optical element 120 from the outside and transmitted through the optical element 120 to the observer E side.
  • the emission member 110 has a curved shape.
  • the optical element 120 has a curved shape and is arranged coaxially with the emission member 110.
  • the emission member 110 is an organic EL (electro-luminescence) display, but the emission member 110 is not limited to an organic EL display, and may be an organic EL display or a self-emitting device such as a micro LED (light emitting diode) display. It may be a light emitting display.
  • organic EL electro-luminescence
  • the emission member 110 is not limited to an organic EL display, and may be an organic EL display or a self-emitting device such as a micro LED (light emitting diode) display. It may be a light emitting display.
  • the emission member 110 is a stretchable display, and has a convex curved surface on the optical element 120 side.
  • the emission member 110 has an emission surface 111 located on the optical element 120 side and a passing surface 112 located on the observer E side.
  • the emission member 110 emits the image display light L1 only to the optical element 120 side.
  • the emission member 110 emits the image display light L1 outward in the radial direction of the curved shape.
  • the emission member 110 is transparent.
  • the emission member 110 is not limited to being transparent, and has a light-transmitting property for transmitting at least a part of the image display light L2 reflected by the optical element 120. Just do it.
  • the emission member 110 may have a structure in which a gap is partially provided in the shielding member.
  • the optical element 120 is a half mirror.
  • the optical element 120 is not limited to the half mirror, and reflects a part of the incident light and transmits a part of the incident light.
  • an optical element having a beam splitting function, or a mirror may be used.
  • a resin such as polycarbonate (PC), polymethyl methacrylate resin (PMMA), or cycloolefin polymer resin (COP), a glass material, or a metal can be used.
  • PC polycarbonate
  • PMMA polymethyl methacrylate resin
  • COP cycloolefin polymer resin
  • the optical element 120 has a curved shape that is convex on the side opposite to the emission member 110 side.
  • the optical element 120 has a first surface 121 located on a side opposite to the exit member 110 side, and a second surface 122 located on the exit member 110 side.
  • each of the emission member 110 and the optical element 120 is arranged such that the curved shape of the optical element 120 and the curved shape of the emission member 110 are coaxial.
  • the optical element 120 reflects part of the image display light L1 emitted from the emission member 110 on the second surface 122 and transmits part of the external light L11 incident on the first surface 121 from the outside.
  • the optical element 120 is a mirror, the optical element 120 reflects the image display light L1 emitted from the emission member 110 on the second surface 122 and does not transmit the external light L11 incident on the first surface 121 from outside. .
  • part of the image display light L1 emitted from the emission member 110 may be reflected on the first surface 121 instead of the second surface 122, or may be reflected on each of the second surface 122 and the first surface 121. You may.
  • the reflected light does not double the virtual image observed by the observer E.
  • the curved shape of each of the first surface 121 and the second surface 122 is set.
  • the image display light L1 emitted from the emission member 110 is reflected on the second surface 122 of the optical element 120 toward the emission member 110.
  • the image display light L2 reflected on the second surface 122 of the optical element 120 is incident on the exit surface 111 of the exit member 110 and transmits through the exit member 110.
  • the image display light L3 transmitted through the emission member 110 travels toward the observer E, and forms a virtual image of the observation target.
  • External light L11 incident on the first surface 121 of the optical element 120 from the front outside is transmitted through the optical element 120.
  • the external light L12 that has passed through the optical element 120 is incident on the exit surface 111 of the exit member 110 and passes through the exit member 110. Since the external light L13 transmitted through the emission member 110 travels toward the observer E, the observer E can visually recognize the real entity ahead.
  • the emission member 110 forms at least a part of the image display light L2 reflected by the optical element 120 toward the observer E, thereby forming a virtual image of the observation target. Therefore, it is not necessary to bend the optical path of the image display light with a half mirror or the like. Therefore, it is not necessary to secure an interval for bending the optical path of the image display light by using a half mirror or the like, so that the size of the optical system of the display device 100 can be reduced.
  • the optical element 120 has the beam splitting function, a part of the external light L11 from the outside can pass through the optical element 120, and further, the output member 110 By transmitting at least a part of the transmitted external light L12 to the observer E side, the observer E can visually recognize the real object ahead in addition to the virtual image of the observation target.
  • the emission member 110 has a curved shape, it is possible to suppress the occurrence of blur of the virtual image and increase the viewing angle as compared with the case where the emission member 110 has a planar shape.
  • the optical element 120 has a curved surface shape and is arranged coaxially with respect to the emission member 110, thereby suppressing blurring and distortion of the virtual image of the observation target and reducing the virtual image of the observation target. It can be formed clearly.
  • FIG. 2 is a schematic diagram showing a configuration of a display device according to Embodiment 2 of the present invention.
  • the display device 200 according to the present embodiment includes an optical element 120 and an emission member 210.
  • the emission member 210 has a flat plate shape.
  • the emission member 210 has an emission surface 211 located on the optical element 120 side and a passing surface 212 located on the observer E side.
  • each of the emission member 210 and the optical element 120 is arranged such that the center of the emission surface 211 of the emission member 210 is located on the axis of the curved surface of the optical element 120.
  • the emission member 210 emits the image display light L1 only to the optical element 120 side.
  • the emission member 210 emits the image display light L1 substantially perpendicular to the emission surface 211.
  • the image display light L1 emitted from the emission member 210 is reflected on the second surface 122 of the optical element 120 toward the emission member 210.
  • the image display light L2 reflected on the second surface 122 of the optical element 120 is incident on the emission surface 211 of the emission member 210 and transmits through the emission member 210.
  • the image display light L3 transmitted through the emission member 210 advances toward the observer E and forms a virtual image of the observation target.
  • a part of the image display light L1 emitted from the emission member 210 may be reflected on the first surface 121 instead of the second surface 122, or may be reflected on each of the second surface 122 and the first surface 121. May be done.
  • the reflected light does not double the virtual image observed by the observer E. Then, the respective curved surface shapes of the second surface 122 and the first surface 121 are set.
  • External light L11 incident on the first surface 121 of the optical element 120 from the front outside is transmitted through the optical element 120.
  • the external light L12 that has passed through the optical element 120 is incident on the exit surface 211 of the exit member 210 and passes through the exit member 210. Since the external light L13 transmitted through the emission member 210 travels toward the observer E, the observer E can visually recognize the real entity in front.
  • the emission member 210 forms a virtual image of the observation target by transmitting at least a part of the image display light L2 reflected by the optical element 120 to the observer E side. Therefore, it is not necessary to bend the optical path of the image display light with a half mirror or the like. Therefore, there is no need to secure an interval for bending the optical path of the image display light by using a half mirror or the like, so that the size of the optical system of the display device 200 can be reduced.
  • Embodiment 3 a display device according to Embodiment 3 of the present invention will be described with reference to the drawings.
  • the display device according to the third embodiment of the present invention is different from the display device 200 according to the second embodiment of the present invention mainly in the configuration of the emission member, and thus is similar to the display device 200 according to the second embodiment of the present invention. Is not repeated.
  • FIG. 3 is a schematic diagram showing a configuration of a display device according to Embodiment 3 of the present invention.
  • the display device 300 according to the present embodiment includes an optical element 120, an emission member 310, and a light source unit 320.
  • the light source section 320 is arranged behind the light emitting member 310. That is, the light source unit 320 is located between the emission member 310 and the observer E.
  • the light source unit 320 may be arranged at an interval to the emission member 310 or may be arranged to be in contact with the emission member 310.
  • the emission member 310 is a transmissive liquid crystal panel.
  • the emission member 310 has a flat plate shape.
  • the emission member 310 has an emission surface 311 located on the optical element 120 side, and a passing surface 312 located on the light source unit 320 side.
  • the light source unit 320 includes a light source 330 which is a surface light source or a point light source, and a light guide plate 340 for uniformly emitting the light emitted from the light source 330 to the surface.
  • the light source unit 320 may further include at least one of a diffusion plate and a diffusion film.
  • the light source 330 is disposed at an edge of the light source unit 320, which is outside the optical path of the image display light L3 transmitted through the emission member 310 described later.
  • the light source of the light source unit 320 may be a light source that emits monochromatic light, or may be a light source that emits R (red), G (green), and B (blue) light.
  • the light guide plate 340 has a flat plate shape.
  • the light guide plate 340 has an irradiation surface 341 located on the emission member 310 side, a passing surface 342 located on the observer E side, and a side surface 343 facing the light source 330.
  • the light emitted from the light source 330 enters the light guide plate 340 from the side surface 343 of the light guide plate 340, is reflected and scattered in the light guide plate 340, and is then emitted from the irradiation surface 341 as illumination light L0 toward the emission member 310. Is done.
  • a resin such as polycarbonate (PC), polymethyl methacrylate resin (PMMA), or cycloolefin polymer resin (COP), or a glass material can be used.
  • PC polycarbonate
  • PMMA polymethyl methacrylate resin
  • COP cycloolefin polymer resin
  • the light guide plate 340 is transparent, but the light guide plate 340 is not limited to being transparent, and has a light transmitting property of transmitting at least a part of the image display light L3 transmitted through the emission member 310. Just do it.
  • the light source unit 320 is a so-called transparent backlight.
  • light emitted from the light source 330 of the light source unit 320 and entering the light guide plate 340 from the side surface 343 of the light guide plate 340 is directed from the irradiation surface 341 of the light guide plate 340 as illumination light L0 to the passing surface 312 of the emission member 310. Irradiated.
  • the image display light L1 is emitted from the emission surface 311 of the emission member 310 in which the illumination light L0 is applied to the passing surface 312.
  • the image display light L1 emitted from the emission member 310 is reflected on the second surface 122 of the optical element 120 toward the emission member 310.
  • the image display light L2 reflected on the second surface 122 of the optical element 120 enters the emission surface 311 of the emission member 310 and transmits through the emission member 310.
  • the image display light L3 that has passed through the emission member 310 enters the irradiation surface 341 of the light guide plate 340 and passes through the light guide plate 340.
  • the image display light L4 transmitted through the light guide plate 340 advances toward the observer E and forms a virtual image of the observation target.
  • part of the image display light L1 emitted from the emission member 310 may be reflected on the first surface 121 instead of the second surface 122, or may be reflected on each of the second surface 122 and the first surface 121. May be done.
  • the reflected light does not double the virtual image observed by the observer E. Then, the respective curved surface shapes of the second surface 122 and the first surface 121 are set.
  • Example 1 when the light source 330 emits monochromatic light, the virtual image of the observation target is a monochrome image.
  • the virtual image of the observation target is a color image.
  • the light source 330 when the light source 330 is three-color light and the transmissive liquid crystal panel is a color panel, the virtual image of the observation target is a color image.
  • the light source 330 emits three-color light in a time-division manner, and the transmissive liquid crystal panel is driven in monochrome in a field-sequential manner to convert R (red), G (green), and B (blue) monochrome images into a time-division image.
  • the virtual image of the observation target is a color image.
  • External light L11 incident on the first surface 121 of the optical element 120 from the front outside is transmitted through the optical element 120.
  • the external light L12 that has passed through the optical element 120 is incident on the exit surface 311 of the exit member 310 and passes through the exit member 310.
  • the external light L13 transmitted through the emission member 310 is incident on the irradiation surface 341 of the light guide plate 340 and transmitted through the light guide plate 340. Since the external light L14 transmitted through the light guide plate 340 proceeds toward the observer E, the observer E can visually recognize the real entity in front.
  • the emission member 310 transmits at least a part of the image display light L2 reflected by the optical element 120 to the light source unit 320 side, and the light guide plate 340 controls the emission member 310
  • the emission member 310 transmits at least a part of the transmitted image display light L3 to the observer E side, a virtual image of the observation target can be formed. Therefore, it is not necessary to bend the optical path of the image display light with a half mirror or the like. Therefore, it is not necessary to secure an interval for bending the optical path of the image display light by using a half mirror or the like, so that the size of the optical system of the display device 300 can be reduced.
  • Embodiment 4 a display device according to Embodiment 4 of the present invention will be described with reference to the drawings.
  • the display device according to the fourth embodiment of the present invention is different from the display device 300 according to the third embodiment of the present invention mainly in the configuration of the light source unit. Is not repeated.
  • FIG. 4 is a schematic diagram illustrating a configuration of an emission member and a light source unit included in a display device according to Embodiment 4 of the present invention.
  • FIG. 4 shows only the emission member 410 and the light source 420 of the configuration of the display device according to the fourth embodiment of the present invention.
  • the relative positional relationship and optical path relationship between each of the optical element 120 and the observer E and the emission member 410 are the same as those of the display device 200 according to the second embodiment of the present invention.
  • the emission member 410 is a transmission screen, and a microstructure or the like is provided on at least one of the inside and the surface. It has an action of deflecting at least a part of the incident light that has entered the 410.
  • the emission member 410 has a flat plate shape.
  • the emitting member 410 has an emitting surface 411 located on the optical element 120 side and a passing surface 412 located on the observer E side.
  • a resin such as polycarbonate (PC), polymethyl methacrylate resin (PMMA), or cycloolefin polymer resin (COP), a glass material, or the like can be used.
  • PC polycarbonate
  • PMMA polymethyl methacrylate resin
  • COP cycloolefin polymer resin
  • the light emitting member 410 is transparent, but the light emitting member 410 is not limited to being transparent, and has a light transmitting property of transmitting at least a part of the image display light L2 reflected by the optical element 120. Just do it.
  • the emission member 410 may have a structure that does not partially have the microstructure portion, or a structure in which a gap is partially provided in a shielding member.
  • the light source unit 420 is a projector.
  • the light source section 420 is disposed behind the emission member 410 at a position outside the optical path of the image display light L3 that passes through the emission member 410 and travels toward the viewer E.
  • the light source 420 projects the projection light L10 toward the passing surface 412 of the emission member 410.
  • the projection light L10 projected on the passing surface 412 is deflected by the emission member 410, and the image display light L1 is emitted from the emission surface 411 of the emission member 410.
  • the emission member 410 can form a virtual image of the observation target by transmitting at least a part of the image display light L2 reflected by the optical element 120 to the observer E side. Therefore, it is not necessary to bend the optical path of the image display light with a half mirror or the like. Therefore, it is not necessary to secure an interval for bending the optical path of the image display light by using a half mirror or the like, so that the optical system of the display device can be downsized.
  • Embodiment 5 a display device according to Embodiment 5 of the present invention will be described with reference to the drawings.
  • the display device according to the fifth embodiment of the present invention is different from the display device according to the fourth embodiment of the present invention mainly in that the emission member is a reflection type screen. The description of the same configuration as the device will not be repeated.
  • FIG. 5 is a schematic diagram showing the configuration of the emission member and the light source unit included in the display device according to Embodiment 5 of the present invention.
  • FIG. 5 illustrates only the emission member 510 and the light source unit 520 in the configuration of the display device according to the fifth embodiment of the present invention.
  • the relative positional relationship and optical path relationship between each of the optical element 120 and the observer E and the emission member 510 are the same as those of the display device 200 according to the second embodiment of the present invention.
  • the emission member 510 is a reflective screen, and a microstructure or the like is provided on at least one of the inside and the surface. It has an action of deflecting at least a part of the incident light that has entered the 510.
  • the emission member 510 has a flat plate shape.
  • the emission member 510 has an emission surface 511 located on the optical element 120 side and a passing surface 512 located on the observer E side.
  • a resin such as polycarbonate (PC), polymethyl methacrylate resin (PMMA), and cycloolefin polymer resin (COP), or a glass material can be used.
  • PC polycarbonate
  • PMMA polymethyl methacrylate resin
  • COP cycloolefin polymer resin
  • the emitting member 510 reflects at least a part of each of the image display light L2 reflected by the optical element 120 and the external light L12 transmitted through the optical element 120, reflecting only the projection light L10 projected from the light source section 520. Has a light-transmitting property to transmit light.
  • the light emitting member 510 is transparent, but the light emitting member 510 is not limited to being transparent, and has a light transmitting property of transmitting at least a part of the image display light L2 reflected by the optical element 120. Just do it.
  • the emission member 510 may have a structure that does not partially have the microstructure portion, or a structure in which a gap is partially provided in a shielding member.
  • the light source unit 520 is a projector.
  • the light source unit 520 is disposed in front of the emission member 510 at a position outside the optical path of the image display light L1 emitted from the emission member 510 toward the optical element 120.
  • the light source section 420 projects the projection light L10 toward the emission surface 511 of the emission member 510.
  • the image display light L1 is emitted from the emission surface 511 of the emission member 510 by reflecting the projection light L10 on the emission surface 511.
  • the emitting member 510 transmits at least a part of the image display light L2 reflected by the optical element 120 to the observer E, thereby forming a virtual image of the observation target. Therefore, it is not necessary to bend the optical path of the image display light with a half mirror or the like. Therefore, it is not necessary to secure an interval for bending the optical path of the image display light by using a half mirror or the like, so that the optical system of the display device can be downsized.
  • Embodiment 6 a display device according to Embodiment 6 of the present invention will be described with reference to the drawings.
  • the display device according to the sixth embodiment of the present invention is different from the display device according to the fourth embodiment of the present invention mainly in that the emission member is a spherical screen. The description of the same configuration as that described above will not be repeated.
  • FIG. 6 is a schematic diagram showing the configuration of the light emitting member and the light source unit included in the display device according to the sixth embodiment of the present invention.
  • FIG. 6 illustrates only the emission member 610 and the light source unit 420 in the configuration of the display device according to the sixth embodiment of the present invention.
  • the relative positional relationship and optical path relationship between each of the optical element 120 and the observer E and the emission member 610 are the same as those of the display device 100 according to the first embodiment of the present invention.
  • the emission member 610 is a hemispherical transmission screen, and a microstructure portion or the like is provided on at least one of the inside and the surface. Accordingly, it has an action of deflecting at least a part of the incident light that has entered the emission member 610.
  • the emission member 610 has an emission surface 611 located on the optical element 120 side and a passing surface 612 located on the observer E side.
  • a resin such as polycarbonate (PC), polymethyl methacrylate resin (PMMA), or cycloolefin polymer resin (COP), a glass material, or the like can be used.
  • PC polycarbonate
  • PMMA polymethyl methacrylate resin
  • COP cycloolefin polymer resin
  • the emission member 610 is transparent.
  • the emission member 610 is not limited to being transparent, and has a light-transmitting property for transmitting at least a part of the image display light L2 reflected by the optical element 120. Just do it.
  • the emission member 610 may have a structure that does not partially include the microstructure portion or a structure in which a gap is partially provided in a shielding member.
  • the light source unit 620 is disposed behind the emission member 610 at a position outside the optical path of the image display light L3 that passes through the emission member 610 and travels toward the viewer E.
  • the light source section 420 projects the projection light L10 toward the passing surface 612 of the emission member 610.
  • the projection light L10 projected on the passing surface 612 is deflected by the emission member 610, and the image display light L1 is emitted from the emission surface 611 of the emission member 610.
  • the emission member 610 transmits at least a part of the image display light L2 reflected by the optical element 120 to the observer E side, thereby forming a virtual image of the observation target. Therefore, it is not necessary to bend the optical path of the image display light with a half mirror or the like. Therefore, it is not necessary to secure an interval for bending the optical path of the image display light by using a half mirror or the like, so that the optical system of the display device can be downsized. Furthermore, since the emission member 610 has a curved shape, it is possible to suppress the occurrence of blur of the virtual image and increase the viewing angle, as compared with the case where the emission member 610 has a planar shape.
  • the display device according to the first embodiment of the present invention is different from the display device according to the first embodiment of the present invention in that the display device according to the seventh embodiment of the present invention reflects the image display light reflected by the optical element and transmitted through the emission member toward the observer with a half mirror. Since the configuration is different from the device 100, the description of the same configuration as the display device 100 according to the first embodiment of the present invention will not be repeated.
  • FIG. 7 is a schematic diagram illustrating a configuration of a display device according to Embodiment 7 of the present invention.
  • the display device 700 according to the present embodiment includes an optical element 120, an emission member 110, and a half mirror 710.
  • the half mirror 710 has a first surface 711 and a second surface 712.
  • the half mirror 710 is arranged in front of the observer E.
  • the optical element 120 is arranged above the half mirror 710.
  • the emission member 110 is disposed between the half mirror 710 and the optical element 120.
  • the image display light L3 reflected by the optical element 120 and transmitted through the emission member 110 is reflected by the second surface 712 of the half mirror 710 toward the observer E.
  • the image display light L5 reflected by the second surface 712 of the half mirror 710 travels toward the observer E and forms a virtual image of the observation target.
  • the image display light L3 reflected by the optical element 120 and transmitted through the emission member 110 is reflected by the second surface 712 of the half mirror 710 toward the observer E.
  • a virtual image of the observation target can be formed.
  • the front of the observer E can be visually recognized by the external light L12 transmitted through the half mirror 710, good forward visibility can be secured.
  • the optical path of the image display light is bent by the half mirror 710, the optical system is larger than that of the display device 100 according to the first embodiment.
  • the emission member 110 By transmitting at least a part of the image display light L2 reflected by the element 120, it is not necessary to arrange the emission member 110 so as not to be located on the optical path of the image display light L2 reflected by the optical element 120. Therefore, the size of the optical system of the display device 700 can be reduced.
  • 100, 200, 300, 700 ⁇ display device 110, 210, 310, 410, 510, 610 ⁇ exit member, 111, 211, 311, 411, 511, 611 exit surface, 112, 212, 312, 342, 412, 512, 512 612 passing surface, 120 optical element, 121,711 first surface, 122,712 second surface, 320,420,520,620 light source unit, 330 light source, 340 light guide plate, 341 irradiation surface, 343 side surface, 710 half mirror, E ⁇ observer, L0 ⁇ illumination light, L1, L2, L3, L4, L5 image display light, L10 projection light, L11, L12, L13, L14 external light.

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  • General Physics & Mathematics (AREA)
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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)

Abstract

L'invention concerne un dispositif d'affichage comprenant un élément optique (120) et un élément d'émission (110). L'élément d'émission (110) émet une lumière d'affichage d'image (L1) vers l'élément optique (120). L'élément d'émission (110) transmet au moins une partie de la lumière d'affichage d'image (L2) réfléchie par l'élément optique (120).
PCT/JP2018/033231 2018-09-07 2018-09-07 Dispositif d'affichage WO2020049724A1 (fr)

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PCT/JP2018/033231 WO2020049724A1 (fr) 2018-09-07 2018-09-07 Dispositif d'affichage

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Application Number Priority Date Filing Date Title
PCT/JP2018/033231 WO2020049724A1 (fr) 2018-09-07 2018-09-07 Dispositif d'affichage

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000506998A (ja) * 1996-03-15 2000-06-06 レティナル ディスプレイ ケイマン リミティッド 画像を見るための方法及び装置
JP2001188194A (ja) * 1999-10-20 2001-07-10 Shimadzu Corp 表示装置
JP2005338346A (ja) * 2004-05-26 2005-12-08 Casio Comput Co Ltd 液晶表示装置
JP2013097215A (ja) * 2011-11-02 2013-05-20 Mitsubishi Electric Corp 表示装置
JP2016516221A (ja) * 2013-03-26 2016-06-02 ルソスペース， プロジェクトス エンゲンハリア エリデーアー 表示装置
GB2558276A (en) * 2016-12-23 2018-07-11 Sony Interactive Entertainment Inc Head mountable display

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000506998A (ja) * 1996-03-15 2000-06-06 レティナル ディスプレイ ケイマン リミティッド 画像を見るための方法及び装置
JP2001188194A (ja) * 1999-10-20 2001-07-10 Shimadzu Corp 表示装置
JP2005338346A (ja) * 2004-05-26 2005-12-08 Casio Comput Co Ltd 液晶表示装置
JP2013097215A (ja) * 2011-11-02 2013-05-20 Mitsubishi Electric Corp 表示装置
JP2016516221A (ja) * 2013-03-26 2016-06-02 ルソスペース， プロジェクトス エンゲンハリア エリデーアー 表示装置
GB2558276A (en) * 2016-12-23 2018-07-11 Sony Interactive Entertainment Inc Head mountable display

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