WO2023176361A1 - Système d'affichage, procédé d'affichage, corps d'affichage et procédé de fabrication de corps d'affichage - Google Patents

Système d'affichage, procédé d'affichage, corps d'affichage et procédé de fabrication de corps d'affichage Download PDF

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Publication number
WO2023176361A1
WO2023176361A1 PCT/JP2023/006729 JP2023006729W WO2023176361A1 WO 2023176361 A1 WO2023176361 A1 WO 2023176361A1 JP 2023006729 W JP2023006729 W JP 2023006729W WO 2023176361 A1 WO2023176361 A1 WO 2023176361A1
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Prior art keywords
display
display element
half mirror
display system
light
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PCT/JP2023/006729
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English (en)
Japanese (ja)
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周作 後藤
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日東電工株式会社
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Priority claimed from JP2022077657A external-priority patent/JP2023134317A/ja
Application filed by 日東電工株式会社 filed Critical 日東電工株式会社
Publication of WO2023176361A1 publication Critical patent/WO2023176361A1/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
    • G02B27/02—Viewing or reading apparatus

Definitions

  • the present invention relates to a display system, a display method, a display body, and a method for manufacturing a display body.
  • Image display devices represented by liquid crystal display devices and electroluminescence (EL) display devices are rapidly becoming popular.
  • EL electroluminescence
  • optical members such as polarizing members and retardation members are generally used to realize image display and improve image display performance (see, for example, Patent Document 1).
  • VR goggles with a display for realizing Virtual Reality (VR) are beginning to be commercialized. Since VR goggles are being considered for use in a variety of situations, it is desired that they be lighter and have higher definition. Weight reduction can be achieved, for example, by making the lenses used in VR goggles thinner. On the other hand, there is also a desire for the development of optical members suitable for display systems using thin lenses.
  • the main purpose of the present invention is to provide a display system that can reduce the weight and increase the definition of VR goggles.
  • a display system that displays images to a user, a display element having a display surface that emits light representing an image forward through a polarizing member; a reflecting section disposed in front of the display element, including a reflective polarizing member, and reflecting light emitted from the display element; a first lens section disposed on an optical path between the display element and the reflection section; a half mirror disposed between the display element and the first lens part, which transmits the light emitted from the display element and reflects the light reflected by the reflection part toward the reflection part; a first ⁇ /4 member disposed on an optical path between the display element and the half mirror; a second ⁇ /4 member disposed on the optical path between the half mirror and the reflecting section; Equipped with A display system, wherein the first ⁇ /4 member and the second ⁇ /4 member each satisfy Re(450)/Re(550) ⁇ 0.90.
  • the first ⁇ /4 member and the second ⁇ /4 member each have Re(400)/Re(550) ⁇ 0.85, Re(650)/Re(550)>1.03, and Re(750)/Re(550)>1.05,
  • the angle between the absorption axis of the polarizing member included in the display element and the slow axis of the first ⁇ /4 member is 40° to 50°
  • the display system according to [1] or [2], wherein the angle between the absorption axis of the polarizing member and the slow axis of the second ⁇ /4 member included in the display element is 40° to 50°.
  • [4] The display system according to any one of [1] to [3], wherein the first lens portion and the half mirror are integrated.
  • [5] The display system according to any one of [1] to [4], including a second lens section disposed in front of the reflecting section.
  • [6] The display system according to any one of [1] to [5], wherein the reflecting section includes an absorbing polarizing member disposed in front of the reflective polarizing member.
  • the following display methods [8] to [9] are provided.
  • [8] Passing the light representing the image emitted through the polarizing member through the first ⁇ /4 member; a step of causing the light that has passed through the first ⁇ /4 member to pass through a half mirror and a first lens portion; passing the light that has passed through the half mirror and the first lens section through a second ⁇ /4 member; a step of reflecting the light that has passed through the second ⁇ /4 member toward the half mirror by a reflecting section including a reflective polarizing member; a step of allowing the light reflected by the reflection part and the half mirror to be transmitted through the reflection part by the second ⁇ /4 member;
  • a display method wherein the first ⁇ /4 member and the second ⁇ /4 member each satisfy Re(450)/Re(550) ⁇ 0.90.
  • the first ⁇ /4 member and the second ⁇ /4 member each have Re(400)/Re(550) ⁇ 0.85, Re(650)/Re(550)>1.03, and Re(750)/Re(550)>1.05,
  • the display method according to [8] which satisfies the following.
  • a display body comprising the display system according to any one of [1] to [7] above.
  • a method for manufacturing a display body comprising the display system according to any one of [1] to [7] above.
  • FIG. 1 is a schematic diagram showing a general configuration of a display system according to one embodiment of the present invention.
  • Refractive index (nx, ny, nz) "nx" is the refractive index in the direction in which the in-plane refractive index is maximum (i.e., slow axis direction), and "ny” is the direction perpendicular to the slow axis in the plane (i.e., fast axis direction) "nz” is the refractive index in the thickness direction.
  • Refractive index (nx, ny, nz) "nx" is the refractive index in the direction in which the in-plane refractive index is maximum (i.e., slow axis direction), and "ny” is the direction perpendicular to the slow axis in the plane (i.e., fast axis direction) "nz” is the refractive index in the thickness direction.
  • In-plane phase difference (Re) "Re( ⁇ )” is an in-plane retardation measured with light having a wavelength of ⁇ nm at 23°C.
  • Re(550) is an in-plane retardation measured with light having a wavelength of 550 nm at 23°C.
  • Phase difference in thickness direction (Rth) is a retardation in the thickness direction measured with light having a wavelength of ⁇ nm at 23°C.
  • Rth (550) is the retardation in the thickness direction measured with light having a wavelength of 550 nm at 23°C.
  • FIG. 1 is a schematic diagram showing the general configuration of a display system according to one embodiment of the present invention.
  • FIG. 1 schematically shows the arrangement, shape, etc. of each component of the display system 2.
  • the display system 2 includes a display element 12, a reflection section 14, a first lens section 16, a half mirror 18, a first retardation member 20, a second retardation member 22, and a second lens section 24.
  • the reflecting section 14 is arranged at the front of the display element 12 on the display surface 12a side, and can reflect the light emitted from the display element 12.
  • the first lens section 16 is arranged on the optical path between the display element 12 and the reflection section 14, and the half mirror 18 is arranged between the display element 12 and the first lens section 16.
  • the first retardation member 20 is arranged on the optical path between the display element 12 and the half mirror 18, and the second retardation member 22 is arranged on the optical path between the half mirror 18 and the reflection section 14.
  • lens section The components disposed in front of the half mirror (in the illustrated example, the half mirror 18, the first lens section 16, the second retardation member 22, the reflection section 14, and the second lens section 24) are collectively called a lens section (lens section). 4).
  • the display element 12 is, for example, a liquid crystal display or an organic EL display, and has a display surface 12a for displaying images.
  • the light emitted from the display surface 12a passes through a polarizing member (typically, a polarizing film) that may be included in the display element 12, and is emitted as first linearly polarized light.
  • a polarizing member typically, a polarizing film
  • the first retardation member 20 is a ⁇ /4 member that can convert the first linearly polarized light incident on the first retardation member 20 into first circularly polarized light (hereinafter, the first retardation member is referred to as the first (sometimes referred to as a ⁇ /4 member). Note that the first retardation member 20 may be provided integrally with the display element 12.
  • the half mirror 18 transmits the light emitted from the display element 12 and reflects the light reflected by the reflection section 14 toward the reflection section 14 .
  • the half mirror 18 is provided integrally with the first lens section 16.
  • the second retardation member 22 is a ⁇ /4 member that can transmit the light reflected by the reflection part 14 and the half mirror 18 through the reflection part 14 including a reflective polarizing member (hereinafter referred to as the second retardation member). (sometimes referred to as the second ⁇ /4 member). Note that the second retardation member 22 may be provided integrally with the first lens portion 16.
  • the first circularly polarized light emitted from the first ⁇ /4 member 20 passes through the half mirror 18 and the first lens section 16, and is converted into second linearly polarized light by the second ⁇ /4 member 22. .
  • the second linearly polarized light emitted from the second ⁇ /4 member 22 is reflected toward the half mirror 18 without passing through the reflective polarizing member included in the reflecting section 14 .
  • the polarization direction of the second linearly polarized light incident on the reflective polarizing member included in the reflecting section 14 is the same direction as the reflection axis of the reflective polarizing member. Therefore, the second linearly polarized light incident on the reflection section is reflected by the reflective polarizing member.
  • the second linearly polarized light reflected by the reflection section 14 is converted into second circularly polarized light by the second ⁇ /4 member 22, and the second circularly polarized light emitted from the second ⁇ /4 member 22 is converted into second circularly polarized light by the second ⁇ /4 member 22.
  • the light passes through one lens section 16 and is reflected by a half mirror 18.
  • the second circularly polarized light reflected by the half mirror 18 passes through the first lens section 16 and is converted into third linearly polarized light by the second ⁇ /4 member 22.
  • the third linearly polarized light passes through the reflective polarizing member included in the reflecting section 14.
  • the polarization direction of the third linearly polarized light incident on the reflective polarizing member included in the reflecting section 14 is the same direction as the transmission axis of the reflective polarizing member. Therefore, the third linearly polarized light that has entered the reflecting section 14 is transmitted through the reflective polarizing member.
  • the light that has passed through the reflection section 14 passes through the second lens section 24 and enters the user's eyes 26 .
  • the absorption axis of the polarizing member included in the display element 12 and the reflection axis of the reflective polarizing member included in the reflecting section 14 may be arranged substantially parallel to or substantially orthogonal to each other.
  • the angle between the absorption axis of the polarizing member included in the display element 12 and the slow axis of the first retardation member 20 is, for example, 40° to 50°, may be 42° to 48°, and is about 45°. It may be °.
  • the angle between the absorption axis of the polarizing member included in the display element 12 and the slow axis of the second retardation member 22 is, for example, 40° to 50°, may be 42° to 48°, and is about 45°. It may be °.
  • the in-plane retardation Re (550) of the first retardation member 20 is, for example, 100 nm to 190 nm, may be 110 nm to 180 nm, may be 130 nm to 160 nm, or may be 135 nm to 155 nm. .
  • the first retardation member 20 preferably exhibits inverse dispersion wavelength characteristics in which the retardation value increases depending on the wavelength of the measurement light.
  • Re(450)/Re(550) of the first retardation member 20 is, for example, less than 1 and may be 0.95 or less, further less than 0.90, and even 0.85 or less. good.
  • Re(450)/Re(550) of the first retardation member 20 is, for example, 0.75 or more.
  • the first retardation member 20 has Re(400)/Re(550) ⁇ 0.85, Re(650)/Re(550)>1.03, and Re(750)/Re( 550)>1.05.
  • the first retardation member 20 has 0.65 ⁇ Re(400)/Re(550) ⁇ 0.80 (preferably 0.7 ⁇ Re(400)/Re(550) ⁇ 0.75), 1. 0 ⁇ Re(650)/Re(550) ⁇ 1.25 (preferably 1.05 ⁇ Re(650)/Re(550) ⁇ 1.20) and 1.05 ⁇ Re(750)/Re( 550) ⁇ 1.40 (preferably 1.08 ⁇ Re(750)/Re(550) ⁇ 1.36), more preferably at least two. More preferably, all of them are satisfied.
  • the first retardation member that exhibits inverse dispersion wavelength characteristics over a wide wavelength range coloring of transmitted light can be suppressed more suitably.
  • the first retardation member 20 preferably exhibits a refractive index characteristic of nx>ny ⁇ nz.
  • the Nz coefficient of the first retardation member 20 is preferably 0.9 to 3, more preferably 0.9 to 2.5, even more preferably 0.9 to 1.5, particularly preferably 0.9 to 1. It is 3.
  • the first retardation member 20 is formed of any suitable material that can satisfy the above characteristics.
  • the first retardation member 20 may be, for example, a stretched resin film or an oriented solidified layer of a liquid crystal compound.
  • the resins contained in the above resin film include polycarbonate resin, polyester carbonate resin, polyester resin, polyvinyl acetal resin, polyarylate resin, cyclic olefin resin, cellulose resin, polyvinyl alcohol resin, and polyamide resin. , polyimide resin, polyether resin, polystyrene resin, acrylic resin, and the like. These resins may be used alone or in combination (for example, blended or copolymerized).
  • a resin film containing a polycarbonate resin or a polyester carbonate resin hereinafter sometimes simply referred to as a polycarbonate resin
  • polycarbonate resins contain structural units derived from fluorene-based dihydroxy compounds, structural units derived from isosorbide-based dihydroxy compounds, alicyclic diols, alicyclic dimethanols, di-, tri-, or polyethylene glycols, and alkylene-based dihydroxy compounds. a structural unit derived from at least one dihydroxy compound selected from the group consisting of glycol or spiroglycol.
  • the polycarbonate resin contains a structural unit derived from a fluorene dihydroxy compound, a structural unit derived from an isosorbide dihydroxy compound, a structural unit derived from an alicyclic dimethanol, and/or a di, tri, or polyethylene glycol. More preferably, it contains a structural unit derived from a fluorene dihydroxy compound, a structural unit derived from an isosorbide dihydroxy compound, and a structural unit derived from di, tri or polyethylene glycol. .
  • the polycarbonate resin may contain structural units derived from other dihydroxy compounds as necessary.
  • the thickness of the first retardation member 20 made of a stretched resin film is, for example, 10 ⁇ m to 100 ⁇ m, preferably 10 ⁇ m to 70 ⁇ m, more preferably 10 ⁇ m to 40 ⁇ m, and still more preferably 20 ⁇ m to 30 ⁇ m.
  • the liquid crystal compound alignment and solidification layer is a layer in which the liquid crystal compound is aligned in a predetermined direction within the layer, and the alignment state is fixed.
  • the "alignment hardened layer” is a concept that includes an orientation hardened layer obtained by curing a liquid crystal monomer as described below.
  • rod-shaped liquid crystal compounds are typically aligned in the slow axis direction of the first retardation member (homogeneous alignment). Examples of rod-shaped liquid crystal compounds include liquid crystal polymers and liquid crystal monomers.
  • the liquid crystal compound is preferably polymerizable. If the liquid crystal compound is polymerizable, the alignment state of the liquid crystal compound can be fixed by aligning the liquid crystal compound and then polymerizing it.
  • the liquid crystal compound alignment and solidification layer is produced by subjecting the surface of a predetermined base material to an alignment treatment, applying a coating liquid containing the liquid crystal compound to the surface, and subjecting the liquid crystal compound to the alignment treatment. It can be formed by orienting it in a corresponding direction and fixing the orientation state. Any suitable orientation treatment may be employed as the orientation treatment. Specifically, mechanical alignment treatment, physical alignment treatment, and chemical alignment treatment can be mentioned. Specific examples of mechanical alignment treatment include rubbing treatment and stretching treatment. Specific examples of physical alignment treatment include magnetic field alignment treatment and electric field alignment treatment. Specific examples of chemical alignment treatment include oblique vapor deposition and photo alignment treatment. As the treatment conditions for various orientation treatments, any appropriate conditions may be adopted depending on the purpose.
  • the alignment of the liquid crystal compound is carried out by treatment at a temperature that exhibits a liquid crystal phase depending on the type of liquid crystal compound.
  • the liquid crystal compound assumes a liquid crystal state, and the liquid crystal compound is oriented in accordance with the orientation treatment direction of the substrate surface.
  • the alignment state is fixed by cooling the liquid crystal compound aligned as described above.
  • the alignment state is fixed by subjecting the liquid crystal compound aligned as described above to polymerization treatment or crosslinking treatment.
  • liquid crystal compound any suitable liquid crystal polymer and/or liquid crystal monomer can be used as the liquid crystal compound.
  • the liquid crystal polymer and the liquid crystal monomer may be used alone or in combination.
  • Specific examples of liquid crystal compounds and methods for producing liquid crystal alignment solidified layers are described in, for example, JP 2006-163343A, JP 2006-178389A, and WO 2018/123551A. The descriptions of these publications are incorporated herein by reference.
  • the thickness of the first retardation member 20 composed of the liquid crystal alignment solidified layer is, for example, 1 ⁇ m to 10 ⁇ m, preferably 1 ⁇ m to 8 ⁇ m, more preferably 1 ⁇ m to 6 ⁇ m, and still more preferably 1 ⁇ m to 4 ⁇ m.
  • the in-plane retardation Re (550) of the second retardation member 22 is, for example, 100 nm to 190 nm, may be 110 nm to 180 nm, may be 130 nm to 160 nm, or may be 135 nm to 155 nm. .
  • the second retardation member 22 preferably exhibits inverse dispersion wavelength characteristics in which the retardation value increases depending on the wavelength of the measurement light.
  • Re(450)/Re(550) of the second retardation member 22 is, for example, less than 1 and may be 0.95 or less, further less than 0.90, and even 0.85 or less. good.
  • Re(450)/Re(550) of the second retardation member 22 is, for example, 0.75 or more.
  • the second retardation member 22 has Re(400)/Re(550) ⁇ 0.85, Re(650)/Re(550)>1.03, and Re(750)/Re( 550)>1.05.
  • the second retardation member 22 has 0.65 ⁇ Re(400)/Re(550) ⁇ 0.80 (preferably 0.7 ⁇ Re(400)/Re(550) ⁇ 0.75), 1. 0 ⁇ Re(650)/Re(550) ⁇ 1.25 (preferably 1.05 ⁇ Re(650)/Re(550) ⁇ 1.20) and 1.05 ⁇ Re(750)/Re( 550) ⁇ 1.40 (preferably 1.08 ⁇ Re(750)/Re(550) ⁇ 1.36), more preferably at least two. More preferably, all of them are satisfied.
  • the second retardation member that exhibits inverse dispersion wavelength characteristics over a wide wavelength range coloring of transmitted light can be suppressed more suitably.
  • the second retardation member 22 preferably exhibits a refractive index characteristic of nx>ny ⁇ nz.
  • the Nz coefficient of the second retardation member 22 is preferably 0.9 to 3, more preferably 0.9 to 2.5, even more preferably 0.9 to 1.5, particularly preferably 0.9 to 1. It is 3.
  • the second retardation member 22 is formed of any suitable material that can satisfy the above characteristics.
  • the second retardation member 22 may be, for example, a stretched resin film or an oriented solidified layer of a liquid crystal compound.
  • the same explanation as for the first retardation member 20 can be applied to the second retardation member 22 made of a stretched resin film or an oriented solidified layer of a liquid crystal compound.
  • the first retardation member 20 and the second retardation member 22 may have the same configuration (forming material, thickness, optical properties, etc.), or may have different configurations.
  • the reflecting section 14 may include an absorption type polarizing member (typically, an absorption type polarizing film).
  • the absorptive polarizing member may be placed in front of the reflective polarizing member.
  • the reflection axis of the reflective polarizing member and the absorption axis of the absorptive polarizing member may be arranged substantially parallel to each other.
  • the reflective polarizing member and the absorptive polarizing member may be laminated with an adhesive layer interposed therebetween, and the reflective section 14 may include a laminate having the reflective polarizing member and the absorbing polarizing member.
  • test and evaluation methods in Examples and the like are as follows.
  • parts when it is written as “parts”, it means “parts by weight” unless there are special notes, and when it is written as “%”, it means “wt%” unless there are special notes.
  • Thickness The thickness of 10 ⁇ m or less was measured using a scanning electron microscope (manufactured by JEOL Ltd., product name “JSM-7100F”). Thickness exceeding 10 ⁇ m was measured using a digital micrometer (manufactured by Anritsu Corporation, product name “KC-351C”).
  • In-plane phase difference Re( ⁇ ) A sample was prepared by cutting out the central part and both ends of the ⁇ /4 member in the width direction into a square having a width of 50 mm and a length of 50 mm, with one side parallel to the width direction of the member. The in-plane retardation of this sample at each wavelength at 23° C.
  • a long resin film with a thickness of 130 ⁇ m was produced using a film forming apparatus equipped with a chill roll (temperature setting: 120 to 130° C.), a winder and a winder.
  • the obtained long resin film was stretched in the width direction at a stretching temperature of 140° C. and a stretching ratio of 2.7 times.
  • a retardation film ( ⁇ /4 member A) having a thickness of 47 ⁇ m, a Re(590) of 143 nm, and an Nz coefficient of 1.2 was obtained.
  • thermoplastic resin base material a long, amorphous isophthalic copolymerized polyethylene terephthalate film (thickness: 100 ⁇ m) having a Tg of approximately 75° C. was used, and one side of the resin base material was subjected to corona treatment. Iodine was added to 100 parts by weight of a PVA resin prepared by mixing polyvinyl alcohol (degree of polymerization 4200, degree of saponification 99.2 mol%) and acetoacetyl-modified PVA (manufactured by Mitsubishi Chemical Corporation, product name "Gosenex Z410”) in a ratio of 9:1.
  • a PVA aqueous solution (coating liquid) was prepared by dissolving 13 parts by weight of potassium chloride in water.
  • the PVA aqueous solution was applied to the corona-treated surface of the resin base material and dried at 60° C. to form a PVA-based resin layer with a thickness of 13 ⁇ m, thereby producing a laminate.
  • the obtained laminate was uniaxially stretched 2.4 times in the vertical direction (longitudinal direction) in an oven at 130° C. (in-air auxiliary stretching treatment).
  • the laminate was immersed for 30 seconds in an insolubilization bath (boric acid aqueous solution obtained by blending 4 parts by weight of boric acid with 100 parts by weight of water) at a liquid temperature of 40° C.
  • Laminated body 1 was produced by laminating four ⁇ /4 members A on one side of the polarizing film obtained in Production Example 3. Lamination of each member was performed by pasting them together via an acrylic adhesive layer (manufactured by Nitto Denko Corporation, thickness 5 ⁇ m). At this time, the slow axes of the four ⁇ /4 members A are parallel to each other and 45° counterclockwise with respect to the absorption axis direction (0°) of the absorption type polarizing film when viewed from the polarizing film side. Each member was laminated so as to form an angle.
  • the measurement results of the single transmittance and hue of the laminates obtained in the above examples and comparative examples are shown in Table 1 together with the optical properties of the ⁇ /4 member.
  • the laminates produced in Examples and Comparative Examples are simple evaluation models of display systems according to embodiments of the present invention.
  • the hue of light incident on the ⁇ /4 member side of the laminate and emitted from the polarizing film side is linearly polarized light emitted forward from the display surface of the display element. After the light passes through the first retardation member and the second retardation member in this order, the light passes through the second retardation member two more times by reflection at the reflection part and re-reflection at the half mirror, and then passes through the reflection part. It can be evaluated as the hue of the light emitted forward.
  • the present invention is not limited to the above embodiments, and various modifications are possible.
  • it can be replaced with a configuration that is substantially the same as the configuration shown in the above embodiment, a configuration that has the same effect, or a configuration that can achieve the same purpose.
  • the display system according to the embodiment of the present invention can be used for a display body such as VR goggles, for example.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Polarising Elements (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

La présente invention concerne un système d'affichage grâce auquel une réduction de poids et une définition améliorée de lunettes de réalité virtuelle peuvent être obtenues, et comprenant : un élément d'affichage ayant une surface d'affichage pour émettre de la lumière dans une direction vers l'avant par l'intermédiaire d'un élément de polarisation pour représenter une image ; une partie réfléchissante qui est disposée devant l'élément d'affichage et comprend un élément polarisant réfléchissant, et réfléchit la lumière émise par l'élément d'affichage ; une première partie de lentille disposée sur un trajet optique entre l'élément d'affichage et la partie réfléchissante ; un demi-miroir qui est disposé entre l'élément d'affichage et la première partie de lentille, et transmet la lumière émise par l'élément d'affichage et réfléchit, vers la partie réfléchissante, la lumière réfléchie par la partie réfléchissante ; un premier élément λ/4 disposé sur le trajet optique entre l'élément d'affichage et le demi-miroir ; et un second élément λ/4 disposé sur le trajet optique entre le demi-miroir et la partie réfléchissante, le premier élément λ/4 et le second élément λ/4 satisfaisant chacun à la condition Re(450)/Re(550) < 0,90.
PCT/JP2023/006729 2022-03-14 2023-02-24 Système d'affichage, procédé d'affichage, corps d'affichage et procédé de fabrication de corps d'affichage WO2023176361A1 (fr)

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JP2022-039286 2022-03-14
JP2022039286 2022-03-14
JP2022-077657 2022-05-10
JP2022077657A JP2023134317A (ja) 2022-03-14 2022-05-10 表示システム、表示方法、表示体および表示体の製造方法

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WO2020137529A1 (fr) * 2018-12-28 2020-07-02 日本ゼオン株式会社 Film de retard, son procédé de production et plaque de polarisation
JP2020166014A (ja) * 2019-03-28 2020-10-08 大日本印刷株式会社 反射スクリーン、該反射スクリーンを用いた投射システム、及び反射スクリーンの製造方法
WO2021145446A1 (fr) * 2020-01-15 2021-07-22 富士フイルム株式会社 Système optique
CN113448101A (zh) * 2021-06-28 2021-09-28 歌尔股份有限公司 光学模组和头戴显示设备

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019505854A (ja) * 2016-01-28 2019-02-28 深▲セン▼多▲ドゥオ▼新技術有限責任公司Ｓｈｅｎｚｈｅｎ Ｄｌｏｄｌｏ Ｎｅｗ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．， Ｌｔｄ． 短距離光拡大モジュール、短距離光拡大方法及び短距離光拡大システム
WO2020137529A1 (fr) * 2018-12-28 2020-07-02 日本ゼオン株式会社 Film de retard, son procédé de production et plaque de polarisation
JP2020166014A (ja) * 2019-03-28 2020-10-08 大日本印刷株式会社 反射スクリーン、該反射スクリーンを用いた投射システム、及び反射スクリーンの製造方法
WO2021145446A1 (fr) * 2020-01-15 2021-07-22 富士フイルム株式会社 Système optique
CN113448101A (zh) * 2021-06-28 2021-09-28 歌尔股份有限公司 光学模组和头戴显示设备

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