Mobile objects, temperature control systems for mobile objects

Abstract

PROBLEM TO BE SOLVED: To sufficiently let in external light and efficiently adjust a temperature change within a mobile body due to the external light.SOLUTION: An external light adjusting member 1 is a member arranged at a portion of a vehicle 30 where external light such as sunlight enters. The external light adjusting member includes: an infrared shield film 4 that selectively shields light in an infrared range of the external light such as sunlight; and a light adjusting film 3 that is arranged so as to overlap with the infrared shield film 4 and adjusts transmittance of light in an at least visible range of the external light such as sunlight.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an outside light adjustment member, a moving body, and a temperature adjustment system for a moving body. [Background technology]

[0002] Various ideas have been proposed for light control materials that are attached to windows to control the transmission of external light (Patent Documents 1 and 2). One such light control material uses liquid crystal. In such light control films that use liquid crystal, a liquid crystal cell is manufactured by sandwiching a liquid crystal material between transparent film materials equipped with transparent electrodes, and the liquid crystal cell is then sandwiched between linear polarizing plates. In this light-adjusting component, the transmission of external light is controlled by changing the electric field applied to the liquid crystal to change the orientation of the liquid crystal.

[0003] Such a light control member may be used in a moving body such as a vehicle. When the light control members disclosed in the above-mentioned Patent Documents 1 and 2 are used to reduce the temperature rise inside the moving body, the transmittance of the light control member must be reduced, and the inside of the vehicle may become dark. Even in this case, the temperature rise caused by external light such as sunlight may not be reduced sufficiently. Furthermore, with regard to vehicle window glass, Patent Document 3 discloses a configuration in which an intermediate layer that blocks infrared rays and a reflective film that reflects near-infrared rays are laminated to prevent the incidence of infrared rays and reduce the temperature rise caused by external light such as sunlight. However, the configuration disclosed in Patent Document 3 may not be able to sufficiently reduce the temperature rise inside the moving body caused by external light such as sunlight, and therefore it is not possible to sufficiently adjust the temperature change inside the moving body. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 03-47392 [Patent Document 2] Japanese Patent Application Publication No. 08-184273 [Patent Document 3] JP 2002-220262 A Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the present invention is to take in sufficient external light and efficiently adjust temperature changes inside a moving body caused by external light. [Means for solving the problem]

[0006] Specifically, the present invention provides the following:

[0007] (1) An external light adjustment member that is disposed at a portion of a moving body where external light is incident, an infrared shielding member that selectively shields light in the infrared region from the external light; A light control member that is arranged so as to overlap the infrared shielding member and adjusts the transmittance of at least visible light of external light; An external light adjustment member comprising: (2) In paragraph (1), The light control member is divided into a plurality of segments; An external light adjustment member characterized by the above. (3) an external light adjustment member (1) or (2) arranged at a portion where external light is incident; A drive control unit that changes the transmittance of the light adjusting member; A moving body comprising: (4) In paragraph (3), A temperature detection unit is provided to detect a temperature inside the moving body, The drive control unit controls the transmittance of the light adjusting member based on a detection result of the temperature detection unit; A moving object characterized by: (5) In paragraph (3) or (4), A passenger position information acquisition unit that acquires passenger position information that is information on the position of a passenger in the moving body, The drive control unit is locally changing the transmittance of the light control member in a portion corresponding to a location where the passenger is seated based on the passenger position information; A moving object characterized by: (6) In any of (3) to (5), a moving unit that moves the infrared ray shielding member from a portion of the movable body where external light is incident; A moving object characterized by: (7) A temperature adjustment system for a moving body, the temperature adjustment system adjusting a temperature inside the moving body, the moving body including an infrared shielding member arranged at a portion where external light enters, the infrared shielding member selectively shielding light in an infrared region from the external light, and a light control member arranged to adjust a transmittance of at least light in a visible region from the external light, the system comprising: A drive control unit that changes the transmittance of the light adjusting member A temperature control system for a vehicle. In paragraph (8)(7), The temperature control system for a moving object; An information processing device that executes the temperature control system for a moving object; A moving body comprising: Effect of the Invention

[0008] According to the present invention, it is possible to more efficiently adjust the temperature change inside the moving body caused by external light. [Brief description of the drawings]

[0009] [Figure 1] 3 is a cross-sectional view illustrating a configuration of an external light adjustment member used in the movable body temperature adjustment system of the first embodiment. FIG. [Diagram 2] 2 is a cross-sectional view illustrating the configuration of a light control film applied to the external light adjustment member of FIG. 1. [Diagram 3] 1 is a diagram illustrating a vehicle having a temperature control system for a moving object according to a first embodiment. [Figure 4] 4 is a flowchart showing a processing procedure of the temperature adjustment system for a moving object of the first embodiment. [Diagram 5]FIG. 11 is a diagram illustrating a vehicle having a temperature control system for a moving object according to a second embodiment. [Figure 6] FIG. 2 is a diagram illustrating the shape of a transparent electrode of the light control film. [Figure 7] 10 is a flowchart showing a processing procedure of a temperature adjustment system for a moving object according to a second embodiment. [Figure 8] 13 is a cross-sectional view illustrating a configuration of an external light adjustment member used in a temperature adjustment system for a moving object according to a third embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] [First embodiment] [External light adjustment member] FIG. 1 is a cross-sectional view illustrating the configuration of an outside light adjustment member used in a temperature adjustment system for a moving object according to the first embodiment. The external light adjustment member 1 is a plate-like member that is applied to, for example, a roof window of a vehicle, which is a type of moving body, and adjusts the temperature inside the vehicle by controlling the incidence of external light, such as sunlight, into the vehicle. The external light adjustment member 1 is formed by laminating together a laminated glass 2 having an infrared shielding layer 7 (infrared shielding member) that selectively blocks incident light in the infrared range and a light control film 3 (light control member) that changes the transmittance of incident light in the visible light range using an adhesive, glue, etc.

[0011] [Laminated Glass] The laminated glass 2 is produced by sandwiching an infrared shielding film 4 between a pair of glass substrates 5 and 8 and laminating them together. Here, an intermediate film (not shown) is provided between the glass substrates 5, 8 and the infrared shielding film 4. The intermediate film is a transparent adhesive layer that bonds each glass substrate to the infrared shielding film 4, and is made of an organic material such as a polyvinyl butyral (PVB)-based resin or an ethylene vinyl acetate copolymer (EVA)-based resin. The intermediate film may contain an ultraviolet absorbing agent, an antioxidant, an antistatic agent, a light stabilizer, an adhesion regulator, etc., as appropriate. In particular, it is more preferable to add an ultraviolet absorbing agent to the resin for the intermediate film, since it can block ultraviolet rays as well as infrared rays.

[0012] Here, the glass substrates 5 and 8 can be made of various glass materials that are applicable to this type of laminated glass. However, since the laminated glass 2 blocks light in the infrared region, it is desirable for the glass substrates 5 and 8 to have sufficient transmittance for light in the visible region and other regions other than the infrared region. More specifically, in the visible light region, that is, the wavelength band of 380 nm or more and 800 nm or less, the transmittance is desirably 80% or more. Materials that can be used for such glass substrates 5 and 8 include, for example, transparent inorganic glass and organic glass. As the inorganic glass, soda-lime glass, aluminosilicate glass, aluminoborosilicate glass, borosilicate glass, alkali-free glass, quartz glass, etc. can be used without any particular limitation. Among these, soda-lime glass is particularly preferred. The forming method of the inorganic glass is not particularly limited, but for example, float plate glass formed by the float method or the like is preferred. Examples of organic glass include polycarbonate resin, polystyrene resin, aromatic polyester resin, acrylic resin, polyester resin, polyarylate resin, vinyl chloride resin, and acrylic urethane resin. Among these, polycarbonate resin is more preferable. The glass substrates 5 and 8 may be configured to contain two or more of the above-mentioned resins.

[0013] The infrared shielding film 4 can be made of various film materials that selectively reflect and / or absorb infrared rays. However, from the viewpoint of preventing an increase in temperature inside the vehicle due to thermal conduction, it is preferable to use an infrared reflective film that reflects infrared rays. The infrared shielding film 4 of the present embodiment is formed by forming an infrared shielding layer 7 on one surface of a substrate 6. Here, the infrared shielding film 4 may be capable of shielding infrared rays over the entire wavelength band of the infrared region, or may be capable of shielding light of a specific wavelength (e.g., near-infrared rays) in the infrared region. The infrared region is a wavelength band of 800 nm or more and less than 1 mm.

[0014] The substrate 6 can be made of various transparent film materials such as a cycloolefin polymer (COP) film, a polycarbonate film, etc., but may be made of the same materials as the substrates 16 and 25 of the light control film 3 described later.

[0015] The infrared shielding layer 7 is an optically functional layer that selectively blocks infrared rays, and in this embodiment, an infrared reflective film is used. The infrared reflective film may have a periodic structure that selectively reflects wavelengths in the infrared region (for example, a structure in which low refractive index layers and high refractive index layers are alternately arranged in multiple layers, etc.). It is also possible to apply a hologram that reflects wavelengths in the infrared region, or a dielectric multilayer film in which low refractive index layers and high refractive index layers are repeatedly laminated in multiple layers, provided on a supporting substrate. The dielectric multilayer film is composed of alternating layers of high-refractive index dielectric films and low-refractive index dielectric films. Metal compounds such as TiO2, Nb2O5, Ta2O5, SiO2, Al2O3, ZrO2, and MgF2 are used for each dielectric film, and a high-refractive index dielectric film and a low-refractive index dielectric film are formed by combining two types of dielectric films with appropriate refractive index differences. Infrared reflective films using such dielectric multilayer films can adjust the reflection wavelength range and reflectance by changing the type of dielectric film used, the thickness of each layer, the number of layers, etc. In addition, as the infrared reflective film, a conventionally known infrared reflective film such as a liquid crystal alignment film, a coating film containing an infrared reflective material, or a single-layer or multi-layer infrared reflective film including a metal film may be provided on a supporting substrate. A liquid crystal alignment film is a film obtained by orienting a liquid crystal compound on a support substrate and fixing the orientation state, and the liquid crystal compound is oriented, for example, in a helical state or a lattice state. As the liquid crystal phase having such a structure, a cholesteric liquid crystal phase, a ferroelectric liquid crystal phase, an antiferroelectric liquid crystal phase, a blue phase, etc. can be applied. When an infrared absorbing film that absorbs infrared rays is used for the infrared shielding layer 7, for example, a resin layer mixed with conductive ultrafine particles that selectively absorb infrared rays can be used. Further, other known infrared reflection and / or infrared absorption techniques may be applied to the infrared shielding layer 7.

[0016] [Light control film] FIG. 2 is a cross-sectional view illustrating the configuration of the light control film 3. As shown in FIG. The light control film 3 is a film-like member that uses liquid crystals to control the transmission of at least light in the visible range, and is configured by sandwiching a liquid crystal cell 14 between linear polarizers 12 and 13. Here, the light control film 3 may be configured to change the transmittance over the entire wavelength range of the visible range, or may be configured to change the transmittance of only a specific wavelength in the visible light range.

[0017] [Linear polarizing plate] The linear polarizing plates 12 and 13 are not particularly limited as long as they include a polarizer, and may have a polarizing plate protective film on one or both sides of the polarizer. Examples of polarizers include a polarizer in which a film of a hydrophilic polymer such as polyvinyl alcohol (PVA) is immersed in an aqueous solution containing iodine, which is a dichroic dye, and stretched to form a complex of polyvinyl alcohol and iodine, and a polarizer in which a plastic film such as polyvinyl chloride is treated to orient polyene. In addition, when a dichroic dye is used as a dichroic pigment instead of iodine, the dichroic dye may be, for example, an azo dye, a stilbene dye, a methine dye, a cyanine dye, a pyrazolone dye, a triphenylmethane dye, a quinoline dye, an oxazine dye, a thiazine dye, or an anthraquinone dye.

[0018] The polarizing plate protective film is not particularly limited as long as it can protect the polarizer and has the desired transparency. Examples of the material of the polarizing plate protective film include acetyl cellulose resin, cycloolefin resin, polyethersulfone resin, amorphous polyolefin, modified acrylic polymer, polystyrene, epoxy resin, acrylic resin, polycarbonate resin, polyamide resin, polyimide resin, polyester resin, etc., or acrylic, urethane, acrylic urethane, epoxy, silicone, and other thermosetting or ultraviolet curing resins. Among them, it is preferable to use acetyl cellulose resin, cycloolefin resin, or acrylic resin as the resin material. Among them, triacetyl cellulose (TAC), which is an acetyl cellulose resin, is particularly suitable. The linear polarizing plates 12 and 13 are arranged on the liquid crystal cell 14 in a crossed Nicol configuration with an adhesive layer made of an acrylic transparent adhesive resin or the like. The linear polarizing plates 12 and 13 are provided with retardation films 12A and 13A for optical compensation on the liquid crystal cell 14 side, respectively, but the retardation films 12A and 13A may be omitted as necessary. Also, the linear polarizing plates 12 and 13 may be arranged in a parallel Nicol configuration instead of the crossed Nicol configuration.

[0019] [Liquid crystal cell] The liquid crystal cell 14 is constructed by sandwiching a liquid crystal layer 18 between a lower laminate 15D and an upper laminate 15U in the form of films.

[0020] [Lower laminate, upper laminate] The lower laminate 15D is formed by laminating a transparent electrode 21, an alignment layer 23, and a spacer 22 on a substrate 16. The upper laminate 15U is formed by laminating a transparent electrode 26, an alignment layer 27, and a spacer 22 on a substrate 25.

[0021] [Base material] Although various transparent resin films can be used for the substrates 16 and 25, it is preferable to use a transparent resin film that has small optical anisotropy and a transmittance of 80% or more in the visible wavelength range (380 to 800 nm). Examples of materials for the transparent resin film include acetylcellulose-based resins such as triacetyl cellulose (TAC), polyester-based resins such as polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), polyolefin-based resins such as polyethylene (PE), polypropylene (PP), polystyrene, polymethylpentene, and EVA, vinyl-based resins such as polyvinyl chloride and polyvinylidene chloride, acrylic resins, polyurethane-based resins, polysulfone (PEF), polyethersulfone (PES), polycarbonate (PC), polysulfone, polyether (PE), polyether ketone (PEK), (meth)acrylonitrile, cycloolefin polymer (COP), and cycloolefin copolymer. In particular, resins such as polycarbonate (PC), cycloolefin polymer (COP), and polyethylene terephthalate (PET) are preferable. In this embodiment, the base materials 16 and 25 are polycarbonate films having a thickness of 100 μm, but transparent resin films having various thicknesses can also be used.

[0022] [Transparent electrode] The transparent electrodes 21 and 26 are composed of the above-mentioned transparent resin film and a transparent conductive film laminated on the transparent resin film. The transparent conductive film can be made of various transparent electrode materials that are applicable to this type of transparent resin film, including oxide-based transparent metal thin films with a total light transmittance of 50% or more, such as tin oxide, indium oxide, and zinc oxide.

[0023] Examples of tin oxide (SnO2) based materials include NESA (tin oxide SnO2), ATO (antimony tin oxide), and fluorine-doped tin oxide. Examples of indium oxide (In2O3) based materials include indium oxide, ITO (indium tin oxide), and IZO (indium zinc oxide). Zinc oxide (ZnO) based materials include zinc oxide, AZO (aluminum-doped zinc oxide), and gallium-doped zinc oxide. In this embodiment, the transparent conductive film is made of ITO (Indium Tin Oxide).

[0024] [Spacer] The spacers 22 are provided to define the thickness of the liquid crystal layer 18, and various types of resin materials can be widely applied. Here, there are mainly two types of spacers 22: spherical spacers (hereinafter referred to as "bead spacers") and columnar spacers (hereinafter referred to as "photospacers"). Here, the light control film 3 may be formed by forming an orientation layer on a substrate, applying a photosensitive resin, exposing and developing the photospacer using a photolithography method, but this is not preferable because the exposure and development processes damage the orientation layer and cause poor orientation. It is also possible to first prepare a photospacer on a substrate and then apply an orientation layer, but this is not preferable because it is not possible to provide a sufficient orientation control force to the orientation layer around the photospacer, which causes poor orientation. Therefore, the light control film manufactured using a photospacer may not be able to accurately control the desired transmittance due to poor orientation. In contrast, bead spacers are dispersed on the alignment layer after the alignment layer is formed, and because the contact area with the alignment layer is small, the occurrence of problems such as damage to the alignment layer or poor alignment as described above can be reduced. Therefore, by using bead spacers as the spacers 22, the transmittance of the manufactured light control film 3 can be changed more precisely and finely than in the case where photospacers are used. Here, the light control film 3 of this embodiment is arranged in a vehicle 30, and from the viewpoint of easily adjusting the temperature inside the vehicle in a small range, it is necessary to precisely control the visible light transmittance to a predetermined value. For this reason, in this embodiment, a bead spacer is applied to the spacer 22.

[0025] Here, the bead spacer used for the spacer 22 may be known beads used in liquid crystal displays, color filters, etc. Specifically, it is possible to use spherical, cylindrical, or cylindrical granular bodies, porous bodies, hollow bodies, etc. obtained by polymerization methods such as suspension polymerization or emulsion polymerization of materials such as glass, silica, metal oxides (MgO, Al2O3) as inorganic components, and acrylic resins, epoxy resins, phenolic resins, melamine resins, unsaturated polyester resins, divinylbenzene copolymers, divinylbenzene-acrylic ester copolymers, diacryl phthalate copolymers, and allyl isocyanurate copolymers as organic components, or seed polymerization methods using core particles obtained by emulsion polymerization. In order to improve the dispersibility and adhesion of the beads 22 on the alignment layer, the surfaces of the bead spacers may be subjected to a surface treatment. The surface coating material is not particularly limited as long as the immobilization on the bead surface and the outflow of chemical substances into the liquid crystal material do not become a problem, and examples of materials that can be used include polyethylene, ethylene / vinyl acetate copolymer, ethylene / acrylic acid ester copolymer, polymethyl (meth)acrylate polymer, SBS type styrene / butadiene block copolymer, epoxy resin, phenol resin, and melamine resin. In the above description, an example has been shown in which the spacer 22 is provided on both the upper laminate 15U and the lower laminate 15D, but this is not limited to this, and the spacer 22 may be provided on either the upper laminate 15U or the lower laminate 15D.

[0026] [Alignment Layer] The alignment layers 23 and 27 are formed of photo-alignment layers. As photo-alignment materials applicable to the photo-alignment layers, various materials to which a photo-alignment technique can be applied can be widely used, and examples thereof include photodecomposition type, photodimerization type, photoisomerization type, and the like. In this embodiment, a photodimerization type material is used. Examples of photodimerization type materials include polymers having cinnamate, coumarin, benzylidenephthalimidine, benzylideneacetophenone, diphenylacetylene, stilbazole, uracil, quinolinone, maleimide, or cinnamylidene acetic acid derivatives. Among them, polymers having one or both of cinnamate and coumarin are preferably used because of their good alignment control power. Specific examples of such photodimerization type materials include compounds described in JP-A-9-118717, JP-T-9-506420, JP-T-2003-505561, and WO2010 / 150748. Instead of a photo-alignment layer, an alignment layer may be prepared by a rubbing treatment, or an alignment layer may be prepared by a patterning treatment to form fine line-shaped irregularities.

[0027] [Liquid crystal layer] The liquid crystal layer 18 can be made of a wide variety of liquid crystal materials that can be used in this type of light control film 3. Specifically, the liquid crystal layer 18 can be made of a nematic liquid crystal compound, a smectic liquid crystal compound, or a cholesteric liquid crystal compound as a liquid crystal compound that does not have a polymerizable functional group. Examples of nematic liquid crystal compounds include biphenyl-based compounds, terphenyl-based compounds, phenylcyclohexyl-based compounds, biphenylcyclohexyl-based compounds, phenylbicyclohexyl-based compounds, trifluoro-based compounds, phenyl benzoate-based compounds, phenyl cyclohexylbenzoate-based compounds, phenyl benzoate-based compounds, phenyl bicyclohexylcarboxylate-based compounds, azomethine-based compounds, azo compounds, azooxy-based compounds, stilbene-based compounds, tolane-based compounds, ester-based compounds, bicyclohexyl-based compounds, phenylpyrimidine-based compounds, biphenylpyrimidine-based compounds, pyrimidine-based compounds, and biphenylethyne-based compounds.

[0028] Examples of the smectic liquid crystal compound include ferroelectric polymer liquid crystal compounds such as polyacrylates, polymethacrylates, polychloroacrylates, polyoxiranes, polysiloxanes, and polyesters. Examples of the cholesteric liquid crystal compound include cholesteryl linoleate, cholesteryl oleate, cellulose, cellulose derivatives, and polypeptides.

[0029] The liquid crystal cell 14 has a sealant 29 disposed therein so as to surround the liquid crystal layer 18. The sealant 29 holds the upper laminate 15U and the lower laminate 15D together, preventing leakage of the liquid crystal material. The sealing material 29 may be, for example, a thermosetting resin such as an epoxy resin or an acrylic resin, or an ultraviolet-curing resin.

[0030] In the light control film 3, an AC voltage whose polarity switches at a predetermined cycle is applied to the transparent electrodes 21 and 26, and this AC voltage forms an electric field in the liquid crystal layer 18. This electric field also controls the orientation of the liquid crystal molecules provided in the liquid crystal layer 18, thereby controlling the transmitted light.

[0031] The VA method (Vertical Alignment) is applied to the alignment control of the liquid crystal layer 18 in the light control film 3 of the embodiment. The VA method is configured such that an alignment film having an alignment control force in the vertical direction is provided on a transparent electrode formed on a substrate, and the liquid crystal layer 18 is sandwiched between the upper and lower substrates. In the VA method, when no electric field is applied, the liquid crystal molecules in the liquid crystal layer 18 are vertically oriented, causing the light control film 3 to block incident light and enter a light-blocking state. When an electric field is applied, the liquid crystal in the liquid crystal layer 18 is horizontally oriented, causing the light control film 3 to transmit incident light and enter a transmissive state. A light control mode such as this VA mode, in which the display is in a light-blocking state when no electric field is applied and in a light-transmitting state when an electric field is applied, is called a normally black mode.

[0032] However, instead of the VA method, various driving methods such as the TN (Twisted Nematic) method, the IPS (In Plane Switching) method, and the GH (Guest Host) method may be used. Here, the TN type is configured such that an alignment film that has been subjected to rubbing or other processing so that the alignment directions differ by 90° is attached on top of a transparent electrode formed on a substrate, and a liquid crystal layer 18 is sandwiched between the upper and lower substrates. The alignment control force of the alignment film causes the liquid crystal molecules to align along the alignment direction of the alignment film, and other liquid crystal molecules are oriented along these liquid crystal molecules, so that the direction of the liquid crystal molecules is twisted by 90°. Polarizing plates are then placed on the outside of the upper and lower substrates in parallel with the alignment direction of the alignment film. In the TN method, when there is no electric field, light that passes through the polarizer becomes linearly polarized and enters the liquid crystal. Because the liquid crystal molecules are oriented twisted by 90 degrees, the incident light also passes through twisted by 90 degrees, allowing it to pass through the polarizer below. This causes the light control film 3 to transmit the incident light and enter a transmissive state. Furthermore, application of this electric field causes the liquid crystal molecules to stand upright and remove any twisting, but because the alignment control force is stronger on the surface of the alignment film, the alignment direction of the liquid crystal molecules remains along the alignment film. In this state, the liquid crystal molecules are isotropic to the light passing through them, so there is no rotation of the polarization direction of linearly polarized light incident on the liquid crystal layer 18. Therefore, linearly polarized light that passes through the upper polarizer cannot pass through the lower polarizer, and the light control film 3 blocks the incident light and enters a light-blocking state. A light control mode in which the display is transparent when no electric field is applied and is light-shielding when an electric field is applied, like the TN mode, is called a normally white mode.

[0033] In addition, the IPS method is a method in which electrodes are created on one of the substrates, and the amount of transmitted light is controlled by rotating the aligned liquid crystal molecules horizontally relative to the substrate using the electric field generated by these electrodes.

[0034] Furthermore, the GH method uses a liquid crystal composition in which a dichroic dye is dissolved as a guest in a nematic liquid crystal host. The dichroic dye has one light absorption axis and absorbs only light that vibrates in the direction of the light absorption axis. Therefore, the orientation of the dichroic dye can be changed in accordance with the movement of the liquid crystal caused by an electric field, and the transmission state of the liquid crystal cell can be changed by controlling the direction of the light absorption axis. The liquid crystal compositions used in the GH mode are roughly classified into positive type and negative type according to the difference in the major axis direction of the liquid crystal molecules when an electric field is applied. Positive nematic liquid crystals are liquid crystals with positive dielectric anisotropy, that is, the dielectric constant is large in the long axis direction and small in the direction perpendicular to the long axis. When no electric field is applied, the long axis direction of the liquid crystal molecules is perpendicular to the optical axis, and when an electric field is applied, the long axis direction of the liquid crystal molecules is parallel to the optical axis. On the other hand, negative nematic liquid crystals are liquid crystals with negative dielectric anisotropy, that is, the dielectric constant is small in the long axis direction and large in the direction perpendicular to the long axis. When no electric field is applied, the long axis direction of the liquid crystal molecules is parallel to the optical axis, and when an electric field is applied, the long axis direction of the liquid crystal molecules is perpendicular to the optical axis. Here, since the dichroic dye molecules are oriented in the same direction as the liquid crystal molecules, when a positive nematic liquid crystal is used as the host, the device is in a light-blocking state when no electric field is applied and in a transparent state when an electric field is applied (normally black mode). On the other hand, when a negative type nematic liquid crystal is used as the host, the liquid crystal is in a transmissive state when no electric field is applied, and in a light-shielding state when an electric field is applied (normally white mode). Dichroic dyes used in the GH method include dyes that are soluble in liquid crystal and have high dichroic properties, preferably dyes with an order parameter (S value) of 0.7 or more. Examples of dichroic dyes include azo-based, anthraquinone-based, quinophthalone-based, perylene-based, indigo-based, thioindigo-based, merocyanine-based, styryl-based, azomethine-based, and tetrazine-based dichroic dyes. When the light control film 3 is manufactured by the GH method, the linear polarizer can be omitted. In addition, the liquid crystal cell 14 may drive the liquid crystal material in a so-called multi-domain manner by patterning a photo-alignment layer or may be driven in a single domain manner. Furthermore, the light control film 3 can be widely applied when using various light control films capable of adjusting the amount of transmitted light, in addition to the above-mentioned light control film using liquid crystal.

[0035] In addition, the light-controlling film 3 may be made of normally black, which has a minimum transmittance (light-shielding state) when no voltage is applied to the transparent electrodes 21 and 26 and no electric field is present, or conversely, it may be made of normally white, which has a maximum transmittance (light-transmitting state) when no electric field is present.

[0036] In addition, the external light adjustment member may be constructed by laminating the infrared shielding film 4 and the light control film 3 together to create a laminate of the infrared shielding film 4 and the light control film 3, and then sandwiching this laminate between glass substrates 5 and 8 to create laminated glass. In addition, the positions of the infrared shielding film 4 and the light control film 3 may be interchanged, and the light control film 3 may be laminated and integrated with the glass substrates 5 and 8 to form a laminated glass, and an infrared shielding film may be disposed on this laminated glass to form an external light adjustment member.

[0037] 〔vehicle〕 Fig. 3 is a diagram illustrating a vehicle 30 having a temperature adjustment system for a moving object 32 according to the first embodiment. The vehicle 30 in Fig. 3 is a schematic diagram viewed vertically from above. The vehicle 30 of this embodiment is a passenger vehicle for four people, and seats S1 to S4 are provided inside the vehicle, as shown in Fig. 3. Note that seat S1 is the driver's seat, and passenger M1 in seat S1 is the driver of the vehicle 30. Passenger M4 in seat S4 is a passenger. In a vehicle 30, an external light adjusting member 1 is arranged as a roof window 31 through which sunlight mainly enters the interior of the vehicle, and this external light adjusting member 1 blocks infrared rays and visible light to prevent a rise in temperature inside the vehicle due to external light such as sunlight. Also, if necessary, it is possible to block only infrared rays and let sunlight into the vehicle. The vehicle 30 is equipped with the external light adjustment member 1 applied to the roof window 31 described above, and a temperature adjustment system for a moving body 32 having a temperature detection unit 42 and a drive control unit 43 for the light control film 3.

[0038] In this embodiment, the temperature adjustment system for a mobile object 32, which has the temperature detection unit 42 and the drive control unit 43 of the dimming film 3, is configured to be executed by an information processing device (e.g., an electronic control unit (ECU) 40) provided in the vehicle 30) as a control program for the dimming film. Here, the ECU 40 is equipped with an input circuit section that inputs various signals output from various sensors provided in the vehicle, such as the temperature sensor 42A described below, and operation signals output from the operation panel, an arithmetic processing section (hereinafter referred to as the "CPU"), a memory circuit section that stores various arithmetic programs executed by the CPU, the control program for the above-mentioned dimming film, and arithmetic results, and an output circuit section that outputs control signals that control each part of the vehicle 30, such as the drive source (engine), and control signals that control the dimming film 3. The temperature adjustment system for a moving body 32 is not limited to the above control program, and each component of the temperature adjustment system for a moving body 32 may be configured as a processing circuit.

[0039] The temperature control system 32 for a vehicle of this embodiment is a system that adjusts the amount of external light entering the interior of the vehicle through the roof window 31, and can adjust the amount of external light entering the interior of the vehicle by controlling the dimming film 3 contained in the external light adjustment member 1 applied as the roof window 31.

[0040] The temperature detection unit 42 detects the temperature inside the vehicle and outputs the temperature to the drive control unit 43. Here, a temperature sensor 42A is provided at the front end portion, in the vehicle traveling direction, of the roof window 31 on the inside of the vehicle. The temperature detection unit 42 outputs temperature information detected by this temperature sensor to the drive control unit 43.

[0041] The drive control unit 43 includes a power supply unit that outputs driving power to the light control film 3, and is configured with an arithmetic processing unit that controls the power supply unit. Of the energy of external light, such as sunlight, that enters the interior of a vehicle, infrared light accounts for approximately 49%, visible light for approximately 49%, and ultraviolet light for approximately 2%. Molecules have a resonance frequency specific to their chemical bonds, and for many molecules, this frequency is in the infrared frequency range. Therefore, when infrared light hits a vehicle, the amplitude of molecular vibration is promoted, leading to an increase in temperature. Therefore, blocking infrared light is of utmost importance in controlling the temperature inside the vehicle. In addition, there are wavelength ranges in the visible range that affect molecular vibrations, although not as much as the infrared range (for example, wavelength ranges in the visible range that are close to the infrared range), so light in the visible range also has a significant impact on the rise in temperature inside a vehicle. Here, since the interior of the vehicle 30 is a small space, depending on the air conditioner and ventilation installed in the vehicle 30, it may be difficult to make delicate temperature adjustments, for example, to make the interior of the vehicle slightly warmer or cooler.

[0042] Therefore, in the vehicle 30 of this embodiment, an external light adjustment member 1 is provided on the roof window 31, and the laminated glass 2 (infrared shielding layer 7) of the external light adjustment member 1 blocks infrared light from the external light, thereby minimizing the rise in temperature inside the vehicle, and the dimming member 3 controls the incidence of visible light, making it possible to adjust the temperature inside the vehicle by a small range that cannot be adjusted by an air conditioner, etc. As described above, the light control film 3 of this embodiment uses bead spacers for the spacer 22, so the transmittance can be changed to suit the passenger's preferences with greater precision than when a photospacer is used. Therefore, the vehicle 30 of this embodiment can change the interior temperature in a small range by controlling the light control film 3, making the temperature environment in the interior space more comfortable.

[0043] Specifically, the drive control unit 43 compares the temperature information T output from the temperature detection unit 42 with the set temperature Tb inside the vehicle set by an operation panel (not shown). When the temperature information T is greater than the set temperature Tb (T > Tb), it controls to reduce the transmittance of the dimming film 3. Thereby, when the temperature inside the vehicle is higher than the set temperature Tb and the inside of the vehicle feels slightly hot, the transmittance of the dimming film 3 can be reduced to decrease the incident light amount of external light and slightly lower the temperature inside the vehicle. Conversely, when the temperature information T is less than the set temperature Tb (T < Tb), the drive control unit 43 controls to increase the transmittance of the dimming film 3. Thereby, when the temperature inside the vehicle is lower than the set temperature Tb and the inside of the vehicle feels slightly cold, the transmittance of the dimming film 3 can be increased to increase the incident light amount of external light and slightly raise the temperature inside the vehicle. Note that when the temperature information T is equal to the set temperature Tb (T = Tb), the drive control unit 43 maintains the current transmittance without changing the transmittance of the dimming film 3.

[0044] Here, the set temperature Tb can be set not only by a predetermined temperature value but also by a predetermined temperature range. For example, the set temperature Tb can be set in the temperature range of 18°C to 22°C. In this case, when the seat temperature information T is greater than 22°C (for example, 22.5°), the drive control unit 43 controls to reduce the transmittance of the dimming film 3. Also, when the seat temperature information T is less than 18°C (for example, 17.5°), the drive control unit 43 controls to increase the transmittance of the dimming film 3. Furthermore, when the seat temperature information T is included in the range of 18°C or more and 22°C or less, the drive control unit 43 maintains the current transmittance without changing the transmittance of the dimming film 3. Thereby, a temperature range that does not require temperature adjustment can be set as the set temperature Tb, preventing the drive control unit 43 from changing the transmittance of the dimming film when within this set temperature Tb range, and maintaining the vehicle interior temperature within a desired temperature range.

[0045] The vehicle temperature control system 32 operates by receiving power from an alternator and a battery installed in the vehicle 30. Here, the alternator is a generator connected to the axle or engine of the vehicle 30, and is integrally equipped with a rectifier device called a rectifier that rectifies the generated AC voltage and converts it into a DC output voltage, and a voltage control device called a voltage regulator that is formed by an integrated circuit and controls the output voltage. Since the voltage output from the alternator changes in response to the rotation speed of the axle or the engine of the vehicle 30, the voltage regulator monitors the output voltage and adjusts the output voltage by controlling the field current of the alternator. The voltage regulator ensures that power is supplied at a voltage that allows the electrical components of the vehicle 30 to operate normally even under constantly changing driving conditions. The battery is, for example, a secondary battery such as a lead battery, a nickel-metal hydride battery, or a lithium-ion battery, and stores the output voltage from the alternator and discharges the stored output voltage to supply power to the mobile temperature adjustment system 32. In addition, the method of supplying power to the mobile temperature control system 32 has been shown as an example in which power is supplied from an alternator and a battery installed in the vehicle 30, but this is not limited to this. For example, power may be supplied from either the alternator or the battery installed in the vehicle 30, a separate battery may be provided for the mobile temperature control system 32 and power may be supplied from that battery, or other known power supply methods may be applied.

[0046] FIG. 4 is a flowchart showing a processing procedure of the temperature adjustment system for a moving object of the first embodiment. Using the temperature detection unit 42 and drive control unit 43 described above, the temperature regulation system for a moving body 32 repeats the process procedure (SP1 to SP2) shown in FIG.

[0047] That is, the mobile body temperature adjustment system 32 provided in the vehicle 30 detects temperature information inside the vehicle by the temperature sensor 42A (SP1). Then, the temperature adjustment system for a moving object 32 controls the transmittance of the light control film 3 by the drive control unit 43 based on the acquired passenger position information and the detected temperature information (SP2).

[0048] As described above, the external light adjustment member 1, the vehicle 30, and the temperature adjustment system for a moving body 32 of this embodiment provide the following effects. (1) The external light adjustment member 1 is disposed at a portion of the vehicle 30 where external light enters, and includes an infrared shielding layer 7 that selectively blocks infrared light from the external light, and a light control film 3 that is disposed so as to overlap the infrared shielding layer 7 and adjusts the transmittance of at least visible light from the external light. This makes it possible to block infrared light entering the vehicle 30 and adjust the incidence of visible light. Therefore, it is possible to take in external light into the vehicle, and efficiently adjust the temperature change inside the vehicle due to external light.

[0049] (2) The vehicle 30 has an external light adjustment member 1 disposed at a location where external light enters, and is equipped with a drive control unit that changes the transmittance of the light control film. As a result, of the external light entering the vehicle, the infrared shielding layer 7 blocks light in the infrared region, while the light control film 3 adjusts the amount of light entering the visible region. Therefore, the vehicle 30 can take in external light into the vehicle and efficiently adjust the temperature change inside the vehicle caused by external light.

[0050] (3) The vehicle 30 further includes a temperature detection unit 42 that detects the temperature inside the vehicle, and the drive control unit 43 controls the transmittance of the light control film 3 based on the detection result of the temperature detection unit 42. This makes it possible to prevent the temperature inside the vehicle from dropping too much due to an excessive reduction in the transmittance of the light control film 3, or to prevent the temperature inside the vehicle from rising too much due to an excessive increase in the transmittance of the light control film, and makes it possible to adjust the temperature environment inside the vehicle to be more comfortable.

[0051] Second embodiment Next, the external light adjustment member 1, the vehicle 130, and the temperature adjustment system for a moving body 132 according to the second embodiment will be described. Fig. 5 is a diagram illustrating a vehicle having a temperature control system for a moving object according to the second embodiment. The vehicle in Fig. 5 is a schematic diagram viewed vertically from above. In the following description and drawings, parts that perform the same functions as those in the first embodiment described above are given the same reference numerals, and duplicated descriptions will be omitted as appropriate. The vehicle 130 of this embodiment differs from the vehicle 30 of the first embodiment mainly in that the light control film 3 of the external light adjustment member 1 is divided into multiple segments, as shown in FIG. 5, and in that a passenger position information acquisition unit 141 is provided.

[0052] The light control film 3 applied to the external light control member 1 of this embodiment is produced by dividing the transparent electrode 21 and / or transparent electrode 26 into a plurality of insulated partial electrodes (regions) that can be individually supplied with driving power. As a result, the external light control member 1 (light control film 3) is formed of a multi-segment having a plurality of regions (hereinafter, each region is appropriately referred to as a segment) SG1 to SG4 that can independently change the transmittance of the visible light range, as shown in FIG.

[0053] It is also possible to lay multiple light-adjusting films on the surface of the laminated glass 2 of the external light adjustment member 1 applied to the roof window 131 of the vehicle 130, and make each light-adjusting film correspond to the above-mentioned segments; however, in this case, the seams (boundaries) between adjacent light-adjusting films may be noticeable, which may mar the appearance. In contrast, the light control film 3 applied to the external light adjustment member 1 of this embodiment is composed of a single film, and only the transparent electrodes constituting the light control film 3 are divided into a plurality of regions (partial electrodes) as described above. Therefore, it is possible to minimize the visibility of the boundaries between the segments of the light control film 3.

[0054] Here, the form of the electrodes of the light control film 3 of this embodiment having a plurality of segments will be described. Fig. 6 is a diagram for explaining the form of the transparent electrodes of the light control film. In Fig. 6, for clarity of explanation, configurations other than the transparent electrodes constituting the light control film 3 are omitted from the illustration. The transparent electrodes 21 and 26 of the light control film 3 are divided, for example, as follows. 6(a), the transparent electrode 26 provided on the light control film 3 is divided into two in the direction along the long side (the traveling direction of the vehicle 130) and in the direction along the short side (the width direction perpendicular to the traveling direction of the vehicle 130), so that the transparent electrode 26 is formed on the base material 25 in a state of being divided into four partial electrodes 26A to 26D. Moreover, the transparent electrode 21 facing the transparent electrode 26 is formed on the entire surface of the base material 16 without being divided. In this way, a multi-segment light control film 3 having segments SG1 to SG4 is formed. In the above explanation, an example in which the transparent electrode 26 is divided into four parts is shown, but this is not limited to this. The transparent electrode 21 may be divided into four parts, and the transparent electrode 26 may be formed over the entire surface of the substrate 25.

[0055] 6(b), the transparent electrode 21 and the transparent electrode 26 may be divided in the same manner as the transparent electrode 26 in FIG. 4(a). Specifically, the transparent electrode 26 is formed from a plurality of partial electrodes 26A-26D, and the transparent electrode 21 is divided to correspond to the transparent electrode 26, that is, the transparent electrode 21 is formed from a plurality of partial electrodes 21A-21D, thereby forming a multi-segment light control film 3 having segments SG1-SG4. Such division of the transparent electrodes 21 and 26 can be achieved by patterning the transparent electrodes.

[0056] The transparent electrodes 21 and 26 may be divided by patterning so that the number of divisions of the opposing transparent electrodes 21 and 26 differs from each other. In the example shown in Figures 6(a) and 6(b) above, the patterning of the transparent electrodes 21, 26 is divided into a rectangular shape, but this is not limited to this and the electrodes may be divided into various shapes, such as a hexagon, a trapezoid, a parallelogram, a triangle, etc. For example, in Fig. 6(c), the transparent electrode 26 is patterned with a plurality of triangular partial electrodes. When forming segments by patterning with triangular partial electrodes in this way, the area set to the light-shielding state can be made to have a shape close to a diamond, as shown by hatching in Fig. 6(c). This makes it possible to provide shade to the passenger more efficiently.

[0057] The light control film 3 is provided so that the segments SG1 to SG4 correspond to seats S1 to S4 of the vehicle 130, which will be described later. This allows the vehicle 130 to adjust the amount of external light entering for each passenger.

[0058] 〔vehicle〕 The vehicle 130 of this embodiment is a passenger vehicle for four people, and seats S1 to S4 are provided inside the vehicle, as shown in Fig. 5. Note that seat S1 is the driver's seat, and passenger M1 in seat S1 is the driver of the vehicle 30. Passenger M4 in seat S4 is a passenger. In the vehicle 130, an external light adjusting member 1 is arranged as a roof window 131 through which sunlight mainly enters the interior of the vehicle, and this external light adjusting member 1 blocks infrared rays and visible light to prevent a rise in temperature inside the vehicle due to external light such as sunlight. Also, if necessary, it is possible to block only infrared rays and let sunlight into the vehicle. The vehicle 130 is equipped with an external light adjustment member 1 applied to the above-mentioned roof window 131, and a temperature adjustment system for a mobile body 132 having a passenger position information acquisition unit 141, a temperature detection unit 142, and a drive control unit 143 for the light control film 3.

[0059] In this embodiment, the temperature adjustment system for a mobile object 132 having the passenger position information acquisition unit 141, the temperature detection unit 142, and the drive control unit 143 of the dimming film 3 is configured to be executed by an information processing device (e.g., an electronic control unit (ECU 140) provided in the vehicle 130) as a control program for the dimming film. Here, the ECU 140 includes an input circuit section that inputs various signals output from various sensors provided in the vehicle, such as temperature sensors 142A-142F described below, and operation signals output from an operation panel, an arithmetic processing section (hereinafter referred to as the "CPU"), a memory circuit section that stores various arithmetic programs executed by the CPU, the control program for the above-mentioned dimming film, and arithmetic results, and an output circuit section that outputs control signals that control each part of the vehicle 30, such as the drive source (engine), and control signals that control the dimming film 3. The movable body temperature adjustment system 132 is not limited to the above control program, and each component of the movable body temperature adjustment system 132 may be configured as a processing circuit.

[0060] The temperature control system 132 for a vehicle of this embodiment is a system that adjusts the amount of external light entering the vehicle interior through the roof window 131, and can adjust the amount of external light entering the vehicle interior for each seat by controlling each segment of the dimming film 3 contained in the external light adjustment member 1 applied as the roof window 131.

[0061] The passenger position information acquisition unit 141 detects passenger position information of passengers seated in seats S1 to S4 of the vehicle 130, and outputs the information to the drive control unit 43. Here, a pressure sensor (not shown) is provided in each of the seats S1 to S4 of the vehicle 30, and the passenger position information acquisition unit 41 detects that a passenger is seated in the corresponding seat by applying pressure to the pressure sensor, and outputs the detection result as passenger position information. In the example shown in Figure 5, passenger M1 is seated in seat S1 and passenger M4 is seated in seat S4, so the passenger position information acquisition unit 41 detects that the passengers are seated using the pressure sensors in seat S1 and seat S4, and outputs passenger position information based on the detection results to the drive control unit 43.

[0062] Note that instead of detecting the occupant using the above-described pressure sensor, the occupant position information acquisition unit 41 may be provided with an imaging device that captures the entire interior of the vehicle, and various detection methods for detecting the presence or absence of an occupant in each seat by performing image processing on the captured result of the entire interior of the vehicle can be applied to the detection method of the occupant.

[0063] The temperature detection unit 142 detects the ambient temperature of each seat S1 to S4 in the vehicle interior and outputs it to the drive control unit 143. Here, temperature sensors 142A to 142D are respectively provided on headrests (not shown) of each seat S1 to S4 of the vehicle 130, and the temperature detection unit 142 collectively outputs the temperature information detected from each temperature sensor to the drive control unit 143.

[0064] The drive control unit 143 includes a power supply unit that outputs a drive power supply to each segment SG1 to SG4 of the dimming film 3, and is configured by an arithmetic processing unit that controls this power supply unit. The drive control unit 143 compares each temperature information T (T1 to T4) output from the temperature detection unit 142 with the set temperature Tb in the vehicle interior set by an operation panel (not shown). When the temperature information T is greater than the set temperature Tb (T > Tb), it controls to reduce the transmittance of the dimming film 3. Thereby, when the temperature in the vehicle interior is greater than the set temperature Tb and the vehicle interior feels a bit hot, the transmittance of the dimming film 3 can be reduced to reduce the incident light amount of external light and slightly lower the temperature in the vehicle interior. Conversely, when the temperature information T is less than the set temperature Tb (T < Tb), the drive control unit 143 controls to increase the transmittance of the dimming film 3. Thereby, when the temperature in the vehicle interior is less than the set temperature Tb and the vehicle interior feels a bit cold, the transmittance of the dimming film 3 can be increased to increase the incident light amount of external light and slightly raise the temperature in the vehicle interior. Note that when the temperature information T is equal to the set temperature Tb (T = Tb), the drive control unit 143 maintains the current transmittance without changing the transmittance of the dimming film 3.

[0065] In addition, based on the passenger position information output from the passenger position information acquisition unit 141, the drive control unit 143 locally changes the transmittance of the segment corresponding to the seat in which the passenger is seated, and maintains the current transmittance of the segments corresponding to other seats without changing them. This allows the vehicle 130 to omit control of the transmittance of segments corresponding to seats where no passengers are seated and no temperature adjustment is required, thereby reducing power consumption by the vehicle temperature adjustment system 132.

[0066] Specifically, in the example shown in FIG. 5, the drive control unit 143 locally changes the transmittance of the segments (SG1, SG4) corresponding to the seats (S1, S4) in which the occupants (M1, M5) are seated, based on the temperature information (T1, T4) from the temperature sensors (142A, 142D) in the seats (S1, S4) in which the occupants (M1, M4) are seated and the set temperature Tb. If the temperature information T1 of the temperature sensor 42A is greater than the set temperature Tb, the drive control unit 143 locally reduces the transmittance of the segment SG1 corresponding to the seat S1, and if the temperature information T1 is smaller than the set temperature Tb, the drive control unit 143 locally increases the transmittance of the segment SG1 corresponding to the seat S1. Similarly, when the temperature information T4 is greater than the set temperature Tb, the drive control unit 143 locally reduces the transmittance of the segment SG4 corresponding to the seat S5, and when the temperature information T5 is less than the set temperature Tb, the drive control unit 143 locally increases the transmittance of the segment SG4 corresponding to the seat S4.

[0067] On the other hand, for seats (S2, S3) where no passenger is seated, the drive control unit 143 maintains the current transmittance without changing the transmittance of the segments (SG2, SG3) corresponding to those seats. In addition, the segments (SG2, SG3) corresponding to seats where no passenger is seated may be changed to have the same transmittance as the segments (SG1, SG4) corresponding to seats where a passenger is seated. In addition, the segments (SG2, SG3) corresponding to seats where no passenger is seated may be changed to a desired transmittance in response to the operation of the vehicle passenger. As described above, the light control film 3 of this embodiment uses a bead spacer for the spacer 22, and therefore can change the transmittance to suit the passenger's preference with greater precision than when a photospacer is used. The set temperature Tb may be set as a single value for the entire vehicle interior, or may be set individually for each seat.

[0068] FIG. 7 is a flowchart showing a processing procedure of the temperature adjustment system for a moving object according to the second embodiment. Using the passenger position information acquisition unit 141, temperature detection unit 142, and drive control unit 143 described above, the temperature adjustment system for mobile object 132 repeats the process procedure (SP1 to SP3) shown in FIG.

[0069] That is, the mobile body temperature adjustment system 132 provided in the vehicle 130 acquires passenger position information by the passenger position information acquisition unit 141 (SP1). Furthermore, the temperature adjustment system for vehicle 132 detects temperature information of each seat by the temperature sensors 142A to 142D provided in each of the seats S1 to S4 using the temperature detection unit 142 (SP2). Then, the temperature adjustment system for a moving object 132 controls the transmittance of each segment of the light control film 3 by the drive control unit 143 based on the acquired passenger position information and the detected temperature information (SP3).

[0070] As described above, the external light adjusting member 1 and the vehicle 30 of this embodiment can achieve the same effects as those of the first embodiment described above. Furthermore, in the external light adjustment member 1 of this embodiment, the light control film 3 is divided into a plurality of segments SG1 to SG4, so more specifically, the transmittance of the light control film can be changed locally, and the amount of light entering the vehicle 130 and the temperature inside the vehicle can be adjusted in a small range. Furthermore, the vehicle 30 of this embodiment includes a passenger position information acquisition unit 141 that acquires passenger position information, which is information on the position of the passenger inside the vehicle, and the drive control unit 143 locally changes the transmittance of the light control film 3 in the portion corresponding to the location where the passenger is sitting, based on the passenger position information. This makes it possible to omit control of the transmittance of the segment corresponding to the seat where the passenger is not seated and does not require temperature adjustment, and reduces the power consumption by the mobile body temperature adjustment system 132.

[0071] Third Embodiment Next, an external light adjustment member 51, a vehicle 30, and a temperature adjustment system for a moving body 32 according to a third embodiment will be described. Fig. 8 is a cross-sectional view illustrating an external light adjustment member 51 arranged on a roof window of a temperature adjustment system for a vehicle according to a third embodiment. Fig. 8(a) is a cross-sectional view in the vehicle width direction of the external light adjustment member 51 arranged on a vehicle 30, and Fig. 8(b) is a cross-sectional view of part b in Fig. 8(a). In the following description and drawings, parts that perform the same functions as those in the first embodiment described above are given the same reference numerals, and duplicated descriptions will be omitted as appropriate. A temperature adjustment system for a moving body 52 of this embodiment differs from the temperature adjustment system for a moving body 32 of the first embodiment in that an external light adjustment member 51 is disposed on the roof window 31, as shown in FIG.

[0072] The external light adjustment member 51 is composed of a light control film 3 attached to the interior surface of the roof window 31, and an infrared shielding film 4 arranged close to the interior surface of the light control film 3 so as to face the roof window 31 (light control film 3). As shown in Fig. 8(a), the infrared shielding film 4 is movably held by a holding part 55 provided on an edge in the vehicle width direction of the roof window 31 of the vehicle, and can be moved in the traveling direction of the vehicle (the direction of the arrow in Fig. 8(b)) relative to the roof window 31 (a part of the vehicle 30 into which external light enters) by driving a moving part 56 consisting of an electric motor, a moving mechanism, etc. As a result, the overlapping area of ​​the infrared shielding film 4 and the roof window 31 (light control film 3) can be changed.

[0073] The drive control unit 43 can control the moving unit 56 to move the infrared shielding film 4 by the passenger operating an operation panel (not shown). For example, in the midsummer season when the temperature is extremely high, the infrared shielding film 4 is arranged so that its entire surface overlaps the light control film 3 (roof window 31), blocking both infrared and visible light from the incoming external light. On the other hand, when it is very cold in the middle of winter, the infrared shielding film 4 can be moved to a retracted position (a position that does not overlap with the roof window 31) where it is completely removed from the light control film 3 (roof window 31), allowing not only light in the visible range but also light in the infrared range to enter the vehicle, thereby more efficiently capturing the thermal energy of external light such as sunlight and warming the interior of the vehicle. In addition, in seasons such as spring and autumn, the overlapping area between the infrared shielding film 4 and the light control film 3 (roof window 31) can be appropriately adjusted according to the passenger's preference by moving the infrared shielding film 4 using the moving part 56.

[0074] In the above description, the infrared shielding film 4 is moved automatically by an electric motor or the like provided on the moving unit 56, but this is not limited to this example, and the moving unit 56 may be omitted so that the film can be moved manually. Furthermore, as in the first embodiment described above, the temperature adjustment system 52 for a vehicle may control the transmittance of the light control film 3 and the movement position of the infrared shielding film 4 based on the temperature information T inside the vehicle and the set temperature Tb. For example, when the temperature information T inside the vehicle is higher than the set temperature Tb, the drive control unit 43 first moves the infrared shielding film 4 to a position overlapping the roof window 31 (light control film 3), and then adjusts the transmittance of the light control film 3 as necessary. When the temperature information T inside the vehicle is lower than the set temperature Tb, the drive control unit 43 moves the infrared shielding film 4 to a retracted position away from the roof window 31 (light control film 3), and then adjusts the transmittance of the light control film 3 as necessary. In this way, by moving the infrared shielding film 4 and then adjusting the transmittance of the light control film 3 as necessary, the temperature control system 52 for a vehicle can adjust the temperature inside the vehicle without changing the brightness inside the vehicle as much as possible.

[0075] As described above, the moving body temperature adjustment system 52 of this embodiment has the same effects as the moving body temperature adjustment system 32 of the above-mentioned first embodiment. In addition, the temperature adjustment system 52 for a mobile body in this embodiment is equipped with a moving unit 56 that moves the infrared shielding film 4 away from the part of the mobile body where external light is incident. Therefore, by moving the infrared shielding film 4 and changing the overlapping area between the light control film 3 and the infrared shielding film 4, the amount of external light in the infrared range that is blocked can be adjusted, and the range of temperature adjustment inside the vehicle can be wider.

[0076] Other Embodiments Although specific configurations suitable for carrying out the present invention have been described in detail above, the configurations of the above-described embodiments can be modified in various ways without departing from the spirit of the present invention.

[0077] In each of the above-described embodiments, an example of a moving body being a vehicle (passenger car) has been shown, but this is not limited to this, and the moving body may be various vehicles other than passenger cars (buses, trucks, etc.), ships (passenger ships), railways (passenger cars), etc.

[0078] In each of the above-described embodiments, an example has been described in which an external light adjustment member is applied or placed on the roof window 31 of a vehicle, but this is not limited to this, and the external light adjustment member may be applied or placed on parts where sunlight enters the vehicle interior, such as side windows and rear windows.

[0079] In each of the above-described embodiments, an example has been shown in which the vehicle is provided with a passenger position information acquisition unit and / or a temperature detection unit, but this is not limited to this, and either one or both may be omitted.

[0080] In the above-mentioned second embodiment, the temperature adjustment system for a moving object has been described as an example in which a plurality of temperature sensors 142A to 142D are provided inside the vehicle 130, but this is not limited thereto, and the temperature sensors may be provided at one location inside the vehicle.

[0081] In the above-mentioned first and second embodiments, the external light adjustment member 1 has been described as an example in which the light control film 3 is arranged on the laminated glass 2, but this is not limited to this. Instead of using laminated glass, an infrared shielding film may be attached to a glass plate, and the light control film 3 may be arranged on the infrared shielding film.

[0082] In the above-described embodiment, the vehicle is an example of a passenger car with four seats, but this is not limited to this, and the vehicle may have a number of seats other than four seats, for example, two seats or six seats. [Explanation of symbols]

[0083] 1, 51 External light adjustment material 2. Laminated glass 3. Light control film 4. Infrared shielding film 7. Infrared shielding layer 5, 8 Glass substrate 12, 13 Linear polarizer 12A, 13A Retardation Film 14 Liquid crystal cell 15U Top Stack 15D lower laminate 16, 25 Base material 18 Liquid crystal layer 21, 26 Transparent electrode 22 Spacer 23, 27 Alignment layer 29 Sealing materials 30, 130 vehicles 31, 131 Roof window 32, 132, 52 Temperature control systems for vehicles 141 Passenger location information acquisition unit 42, 142 Temperature detection unit 42A~42F, 142A Temperature Sensor 43, 143 Drive control unit 53 Glass Substrate 54 First plate-like member 55 Holding part 56 Mobile section M1, M5 passengers S1~S6 seats SG1~SG6 segments

Claims

1. A moving body including an external light adjusting member arranged at a portion where external light is incident and adjusting the amount of incident external light, The external light adjustment member is an infrared shielding member that selectively shields light in the infrared region from the external light; a light control member arranged so as to overlap the infrared shielding member and adapted to adjust the transmittance of at least visible light of external light; The moving body is A drive control unit that changes the transmittance of the light adjusting member; A temperature detection unit that detects the temperature of each seat in the vehicle; A passenger position information acquisition unit that acquires passenger position information that is information on the position of a passenger in the moving body, The drive control unit locally and individually controls the transmittance of a portion of the light control member corresponding to the seat based on a detection result of the temperature detection unit for each seat and a set temperature inside the moving body, The set temperature has a predetermined temperature range, and one set temperature is set throughout the entire moving body, The drive control unit is When the detection result of the temperature detection unit is greater than an upper limit value of the predetermined temperature range, the light control member is controlled so as to reduce a transmittance of a portion of the light control member corresponding to the seat; When the detection result of the temperature detection unit is smaller than a lower limit value of the predetermined temperature range, the transmittance of the portion of the light control member corresponding to the seat is controlled to be increased; When the detection result of the temperature detection unit is within the predetermined temperature range, the transmittance of the portion of the light control member corresponding to the seat is maintained unchanged; The drive control unit locally changes the transmittance of the light control member in a portion corresponding to a location where the passenger is seated, based on the passenger position information, and maintains the current transmittance without changing the transmittance of the light control member in a portion corresponding to a location other than the location where the passenger is seated; The light control member is configured as a single film and is divided into a plurality of segments, each of the segments corresponding to each of the seats; A moving object characterized by:

2. a moving unit that moves the infrared ray shielding member from a portion of the movable body where external light is incident; The moving body according to claim 1 .

3. A temperature adjustment system for a moving body, the temperature adjustment system adjusting a temperature inside the moving body, the moving body including an infrared shielding member arranged at a portion where external light is incident, the infrared shielding member selectively shielding light in an infrared region from the external light, and a light control member arranged to adjust a transmittance of at least light in a visible region from the external light, the system comprising: A drive control unit that changes the transmittance of the light adjusting member; A temperature detection unit that detects the temperature of each seat in the vehicle; A passenger position information acquisition unit that acquires passenger position information that is information on the position of a passenger in the moving body, The drive control unit locally and individually controls the transmittance of a portion of the light control member corresponding to the seat based on a detection result of the temperature detection unit for each seat and a set temperature inside the moving body, The set temperature has a predetermined temperature range, and one set temperature is set throughout the entire moving body, The drive control unit is When the detection result of the temperature detection unit is greater than an upper limit value of the predetermined temperature range, the light control member is controlled so as to reduce a transmittance of a portion of the light control member corresponding to the seat; When the detection result of the temperature detection unit is smaller than a lower limit value of the predetermined temperature range, the transmittance of the portion of the light control member corresponding to the seat is controlled to be increased; When the detection result of the temperature detection unit is within the predetermined temperature range, the transmittance of the portion of the light control member corresponding to the seat is maintained unchanged; The drive control unit locally changes the transmittance of the light control member in a portion corresponding to a location where the passenger is seated, based on the passenger position information, and maintains the current transmittance without changing the transmittance of the light control member in a portion corresponding to a location other than the location where the passenger is seated; The light control member is configured as a single film and is divided into a plurality of segments, each of the segments corresponding to each of the seats; A temperature control system for a moving object, comprising:

4. The temperature control system for a moving object according to claim 3 ; An information processing device that executes the temperature control system for a moving object; A mobile body comprising:

Images