WO2023011161A1 - 一种调光透明投影膜 - Google Patents

一种调光透明投影膜 Download PDF

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WO2023011161A1
WO2023011161A1 PCT/CN2022/106450 CN2022106450W WO2023011161A1 WO 2023011161 A1 WO2023011161 A1 WO 2023011161A1 CN 2022106450 W CN2022106450 W CN 2022106450W WO 2023011161 A1 WO2023011161 A1 WO 2023011161A1
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layer
light
transparent
adjustable
transparent projection
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PCT/CN2022/106450
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English (en)
French (fr)
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周孟超
陆嘉伟
薛九枝
王飞
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江苏集萃智能液晶科技有限公司
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Publication of WO2023011161A1 publication Critical patent/WO2023011161A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/17—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on variable-absorption elements not provided for in groups G02F1/015 - G02F1/169
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface

Definitions

  • the invention relates to the technical field of transparent projection applications, in particular to a light-adjustable transparent projection film.
  • transparent projection technology can observe the scene on the other side while ensuring imaging, realizing the combination of virtual and real, and can be widely used in advertising, business exhibitions, entertainment activities, family leisure, etc. , Greatly meet the needs of people's lives today.
  • the relatively mature transparent projection technology includes holographic projection technology, but it is expensive, complicated in process and high in production cost.
  • a new optical thin film technology is disclosed, which can be used with a projector to realize the application of transparent projection display.
  • the structure is simple and the process is easy to realize.
  • the ambient light is strong, external light passes through the projection film and enters the viewer's sight range, which interferes with the projection display effect. This puts forward higher requirements for the application scene environment and greatly limits its application range.
  • the present invention provides a dimmable transparent projection film, which realizes transparent projection and also has a dimming function, and can adjust and control the transmission of external light according to different application scenarios, so that The transparent projection effect is better, and the structure and preparation process are simple.
  • a light-adjustable transparent projection film includes a transparent projection layer and a light-adjustable layer arranged in parallel, and the transparent projection layer presents while performing diffuse reflection on preset reflected light to realize front projection projection
  • the light-adjusting layer is a transparent layer with adjustable transmittance, and the transmittance of the light-adjustable layer is continuously adjusted between 0.5% and 80%.
  • the dimming layer adopts SPD dimming device or dye liquid crystal dimming device.
  • the transparent projection layer includes a base layer, a random structure layer, a coating layer and a refractive index matching layer.
  • the random structure layer has substantially the same refractive index as the refractive index matching layer.
  • the light-adjusting layer is located on a side of the transparent projection layer away from the projector, so as to facilitate reflective imaging of the transparent projection layer.
  • the dimming layer includes a first transparent substrate, a first transparent conductive layer, a dimming material layer, a second transparent conductive layer and a second transparent substrate arranged in sequence.
  • a support structure between the first transparent substrate and the second transparent substrate is further included.
  • the supporting structure is a columnar supporting mechanism or spacer balls, and the material of the supporting structure includes at least one of resin, glass fiber and inorganic material.
  • an adsorption layer and a transparent adhesive layer located between the transparent projection layer and the light adjustment layer are also included.
  • the adsorption layer is hydrogen-containing silicone oil with a hydrogen content of 0.1wt%-5wt%.
  • the beneficial effect of the present application is that it provides a light-adjusting transparent projection film, which includes a transparent projection layer and a light-adjusting layer arranged in parallel, and the transparent projection layer performs a predetermined reflection on the reflected light. Diffuse reflection realizes front projection while presenting the real-world environment behind the transparent projection layer. At the same time, the light-adjusting layer adjusts the intensity of the incident light on the back side by changing the light transmittance without affecting the reflective imaging efficiency of the transparent projection layer. , which can achieve the best observation effect of front projection and back measurement objects, and can be applied to various environments.
  • Fig. 1 is a structural schematic diagram of a light-adjustable transparent projection film
  • Fig. 2 is a structural schematic diagram of a transparent projection layer
  • 3 is a schematic diagram of the overall structure of the dimming layer
  • FIG. 4 is a schematic structural diagram of a dimming layer according to an embodiment of the present invention.
  • Fig. 5 is a schematic diagram during projection of the light-adjustable transparent projection film in the present invention.
  • the embodiment disclosed in this application relates to a light-adjusting transparent projection film.
  • the light-adjusting transparent projection film 01 includes a transparent projection layer 1 and a light-adjusting layer 2 arranged in parallel.
  • a transparent layer with adjustable transmittance the transmittance of the light-adjusting layer can be continuously adjusted between 0.5% and 80%; the transparent projection layer 1 performs diffuse reflection on the preset reflected light to realize the front projection
  • the real-world environment behind the transparent projection layer can be presented.
  • the light-adjusting layer 2 can adjust the transmittance of the rear light to avoid the interference of the strong light on the back side of the projection film on the projection imaging effect.
  • the light-adjusting layer is adjusting the light The high transmittance allows the observer to simultaneously observe the image through the light-adjustable transparent projection film.
  • the transparent projection layer can perform diffuse reflection imaging on the preset forward incident light, and at the same time take into account the transmission function of the back light.
  • the transparent projection layer 1 includes the base layer 11.
  • polyurethane resin polyurethane
  • the random structure layer 12 can be prepared by the following method: a template with any random shape or a microstructured surface with certain patterns is placed on the base layer 11, and an optical resin is placed between the base layer and the template, so that the optical resin layer The surface in contact with the template conforms to the microstructure of the template, and the template is peeled off after the optical resin layer is cured; wherein, the curing method can be but not limited to at least one of thermal curing, photocuring, and EB curing.
  • the light-adjusting layer is located on the side of the transparent projection layer away from the projector, and in order to ensure the high-definition projection of the light-adjustable transparent projection film, as a preferred embodiment, the The reflectivity of the transparent projection layer 1 is 10%-70%.
  • the transparent projection layer and the dimming layer are fixed together by a transparent glue layer or an adsorption layer, wherein the material of the adsorption layer can be but not limited to silicone oil, etc.
  • the silicone oil is a hydrogen-containing silicone oil with a hydrogen content of 0.1 wt% to 5 wt%.
  • the dimming layer 2 includes a first transparent substrate 21, a first transparent conductive layer 22, a dimming material layer 23, a second transparent conductive layer 24 and The second transparent substrate 25; wherein, the first transparent substrate 21 and the second transparent substrate 25 are used to carry various film layers thereon, which can be but not limited to glass, PET, PEN, PC, PP, PMMA, PBT, PVC, At least one of PI and cellulose;
  • the first transparent conductive layer 22 and the second transparent conductive layer 24 are all arranged in a whole layer, and the first transparent conductive layer 22 and the second transparent conductive layer 24 are preferably ITO materials,
  • the first transparent conductive layer 22 and the second transparent conductive layer 24 can also use carbon-based conductive films, metal nanowire conductive films, metal oxide films, etc., wherein the carbon-based conductive films mainly include graphene oxide and carbon nanowires.
  • Metal nanowire conductive films metal nanowire conductive films, metal oxide films, etc., wherein the carbon-
  • the dimming layer further includes a sealing frame structure 26 located around the dimming material layer 23, and the sealing frame structure 26 can be polymerized and cured by a reactive adhesive. formed, including but not limited to heat-curable epoxy resin glue, light-curable acrylate glue, and UV heating mixed glue; as a further preferred embodiment, the light-adjusting layer 2 also includes 21 and the support structure 27 between the second transparent substrate 25, the support structure 27 can be distributed anywhere between the first transparent substrate 21 and the second transparent substrate 25, including in the sealing frame structure 26; as a further preferred In an embodiment, the support structure 27 is a columnar support mechanism or spacer balls, wherein the material of the support structure is at least one of resin, glass fiber and inorganic materials, including but not limited to polystyrene, silicon dioxide, etc.; the support structure The shape can be spherical, rod-like, or other shapes. The size of the support structure 27 is determined according to the thickness of the dimming layer, the present application
  • the dimming layer adopts an SPD dimming device or a dye liquid crystal dimming device; wherein, the dimming material layer of the SPD dimming device (Suspended Particle Device) includes an SPD composition; the dye liquid crystal The light-adjusting material layer of the light-adjusting device includes a dye liquid crystal composition; but the application is not limited thereto, and all structures that can realize adjustable incident light transmittance can be used to replace the light-adjusting layer structure of the application.
  • the light-adjustable transparent projection film 01 can be used in conjunction with the projector 02. Both the projector and the observer are located on the side of the transparent projection layer of the light-adjustable transparent projection film.
  • the projector projects the output light to project the image on the transparent film.
  • the observer can see the projected image through the diffuse reflection of the transparent projection layer 1.
  • the observer can also see the objects behind the light-adjustable transparent projection film 01 in the observation area.
  • the light-adjustable transparent projection film 01 is behind
  • more ambient light passes through the light-adjustable transparent projection film and enters the observer's sight, which affects the observation effect of the projected image. strong or weak, while not affecting the reflective imaging efficiency of the transparent projection layer 1, the best front projection and observation effect of rear objects can be achieved.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

一种调光透明投影膜，调光透明投影膜（01）包括平行设置的透明投影层（1）和调光层（2），调光层（2）为透过率可调的透明层，调光层（2）的透过率在0.5％-80％之间连续调整；透明投影层（1）在对预先设定的反射光进行漫反射实现正投投影的同时呈现透明投影层（1）后的真实世界环境，同时调光层（2）通过改变光线透过率，调整背侧入射光线的强弱，同时不影响透明投影层（1）的反射成像效率，可实现最佳的前置投影和后测物体的观察效果，可适用于多种环境场所。

Description

一种调光透明投影膜
本申请要求了申请日为2021年8月2日，申请号为CN202110878623.9，发明名称为“一种调光透明投影膜”的发明专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及透明投影应用技术领域，尤其涉及一种调光透明投影膜。
背景技术
透明投影技术作为一种新兴的显示技术，在保证成像的同时，亦可观察到另一侧景物，实现了虚实结合，可广泛应用于广告宣传，商务展会，娱乐活动，家庭休闲等多个方面，极大的满足了现在人的生活需要。当前较为成熟的透明投影技术有全息投影技术，但其价格昂贵、工艺复杂、生产成本较高。在专利CN211264062U中，揭示了一种新的光学薄膜技术，其搭配投影仪可实现透明投影显示的应用，结构简单，工艺易于实现。但当环境光较强时，外界光线透过投影膜，进入观察者视线范围，干扰投影显示效果，这对其应用场景环境提出了更高的要求，大大限制了其应用范围。
因此，需要提供一种能够适用于多种光线环境，兼具投影效果和透明性、且结构和制备工艺简单的投影膜。
发明内容
本发明针对现有技术中存在的以上技术问题，提供一种可调光的透明投影膜，实现透明投影的同时兼具调光功能，可根据应用场景的不同调节控制外部光线的透过，使得透明投影效果更佳，并且结构和制备工 艺简单。
本发明采用的技术方案如下:
一种调光透明投影膜，所述调光透明投影膜包括平行设置的透明投影层和调光层，所述透明投影层在对预先设定的反射光进行漫反射实现正投投影的同时呈现所述透明投影层后的真实世界环境，所述调光层为透过率可调的透明层，所述调光层的透过率在0.5％-80％之间连续调整。
优选地，所述调光层采用SPD调光器件或染料液晶调光器件。
优选地，所述透明投影层包括基层、随机结构层、镀层以及折射率匹配层。
优选地，所述随机结构层与所述折射率匹配层的折射率基本相同。
优选地，所述调光层位于所述透明投影层的背离设置投影机的一侧，便于透明投影层的反射成像。
优选地，所述调光层包括依次设置的第一透明基底、第一透明导电层、调光材料层、第二透明导电层和第二透明基底。
优选地，还包括位于所述第一透明基底和所述第二透明基底之间的支撑结构。
优选地，所述支撑结构为柱状支撑机构或间隔球，所述支撑结构的材料包括树脂、玻璃纤维以及无机材料中的至少一种。
优选地，还包括位于所述透明投影层和所述调光层之间的吸附层和透明胶层。
优选地，所述吸附层为含氢量为0.1wt％-5wt％的含氢硅油。
本申请的有益效果在于，提供了一种调光透明投影膜，所述调光透 明投影膜包括平行设置的透明投影层和调光层，所述透明投影层在对预先设定的反射光进行漫反射实现正投投影的同时呈现所述透明投影层后的真实世界环境，同时调光层通过改变光线透过率，调整背侧入射光线的强弱，同时不影响透明投影层的反射成像效率，可实现最佳的前置投影和后测物体的观察效果，可适用于多种环境场所。
附图说明
通过参照本发明的实施方案的图示说明可以更好地理解本发明，在附图中：
图1为一种调光透明投影膜的结构示意图；
图2为透明投影层的结构示意图；
图3为调光层的整体结构示意图；
图4为根据本发明一个实施例调光层的结构示意图；
图5为本发明中的调光透明投影膜投影时的示意图；
图中：01-调光透明投影膜、1-透明投影层、11-基层、12-随机结构层、13-镀层、14-折射率匹配层、2-调光层、21-第一透明基底、22-第一透明导电层、23-调光材料层、24-第二透明导电层、25-第二透明基底、26-封框结构、27-支撑结构、02-投影仪。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请具体实施例及附图对本申请技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例，不用来限制本发明的范围。基于本申请中的实施例，本领域普通技术人员在没 有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请所公开的实施方案涉及一种调光透明投影膜，如图1所示，所述调光透明投影膜01包括平行设置的透明投影层1和调光层2，所述调光层为透过率可调的透明层，所述调光层的透过率在0.5％-80％之间连续调整；所述透明投影层1在对预先设定的反射光进行漫反射实现正投投影的同时呈现所述透明投影层后的真实世界环境，同时调光层2可以调整后侧光线的透过率，避免投影膜侧背面强光线对投影成像效果的干扰，同时调光层在调整光线透过率的同时允许观察者同时观察透过所述调光透明投影膜的影像。
本申请中，透明投影层可对预先设定的正向入射光线进行漫反射成像，同时兼顾背向光线的透过功能，作为优选的实施方案，如图2所示，透明投影层1包括基层11、随机结构层12、镀层13以及折射率匹配层14；其中，随机结构层与基层接触的一面是平坦的表面，与镀层接触的一面是不平坦的结构化表面，进一步地，不平坦的结构化表面为具有预定表面微结构的透明光学树脂膜；作为进一步优选的实施方案，所述随机结构层12与所述折射率匹配层14的折射率基本相同；其中，所述随机结构层12是由光学树脂制备而成，进一步地，所述光学树脂可以为但不仅仅限于丙烯酸树脂、聚氨酯树脂、硅胶中的任意一种，其中，丙烯酸树脂是丙烯酸、甲基丙烯酸及其衍生物聚合物的总称；聚氨酯树脂(聚氨酯)是由多元醇和异氰酸酯组成的聚合物，对各类基材均具有很强的附着力，且弹性高，耐磨性好；制备所述随机结构层的工艺可以通过使用 任意一种湿式涂覆工艺来实现，具体地，可以为但不仅仅限于胶印、转印、挤压、狭缝、涂布中的任意一种；制备所述镀层的工艺可以为但不仅仅限于磁控溅射、蒸镀或其他物理气相沉积中的任意一种。
具体地，随机结构层12可由以下方法制备：将具有任何随机形状或具有某些图案的微结构表面的模板放置在基层11上方，同时将光学树脂置于基层与模板之间，使光学树脂层与模板接触的表面顺应模板的微结构，固化光学树脂层后剥离模板；其中，固化的方式可以为但不仅仅限于热固化、光固化、EB固化中的至少一种。
本申请中，作为优选的实施方案，所述调光层位于所述透明投影层的背离设置投影机的一侧，同时为了保证调光透明投影膜投影的高清，作为优选的实施方案，所述透明投影层1的反射率为10％～70％。
本申请中，作为一个优选的实施方案，所述透明投影层和所述调光层之间通过透明胶层或吸附层固定在一起，其中，所述吸附层材料可以为但不仅仅限于硅油等，作为进一步优选的实施方案，所述硅油为含氢量为0.1wt％-5wt％的含氢硅油。
本申请中，作为优选的实施方案，如图3所示，调光层2包括依次设置的第一透明基底21、第一透明导电层22、调光材料层23、第二透明导电层24和第二透明基底25；其中，第一透明基底21和第二透明基底25用于承载其上各个膜层，可以为但不仅仅限于玻璃、PET、PEN、PC、PP、PMMA、PBT、PVC、PI、纤维素中的至少一种；另外，第一透明导电层22和第二透明导电层24均为整层设置，第一透明导电层22、第二透明导电层24优选地采用ITO材料，但不限于此，第一透明导电层22和 第二透明导电层24还可以采用碳系导电薄膜、金属纳米线导电薄膜、金属氧化薄膜等，其中碳系导电薄膜主要有氧化石墨烯和碳纳米管两大类，金属纳米线导电薄膜常用的有银纳米线、铜纳米线等，金属氧化薄膜包括使用氧化铟锡、氧化铟、氧化锡、氧化锌以及其他金属氧化物的混合。
本申请中，作为优选的实施方案，如图4所示，所述调光层还包括位于所述调光材料层23周围的封框结构26，封框结构26可由反应型胶黏剂聚合固化形成，包括但不限于热固化型环氧树脂胶、光固型丙烯酸酯胶以及UV加热混合型胶等；作为进一步优选的实施方案，所述调光层2还包括位于所述第一透明基底21和所述第二透明基底25之间的支撑结构27，支撑结构27可分布在第一透明基底21和第二透明基底25之间的任何地方，包括封框结构26内；作为进一步优选的实施方案，支撑结构27为柱状支撑机构或间隔球，其中，支撑结构的的材料为树脂、玻璃纤维以及无机材料中的至少一种，包括但不限于聚苯乙烯、二氧化硅等；支撑结构的形状可为球状、棒状，或其他形状。支撑结构27的尺寸根据调光层厚度而定，本申请不限于此，支撑结构还可以为其他结构代替，不再赘述。
本申请中，作为优选的实施方案，调光层采用SPD调光器件或染料液晶调光器件；其中，所述SPD调光器件(Suspended Particle Device)的调光材料层包括SPD组合物；染料液晶调光器件的调光材料层包括染料液晶组合物；但本申请不限于此，所有可实现入射光透过率可调的结构均可用来替代本申请的调光层结构。
另外，本领域技术人员应当理解，在本发明的保护范围内，不排除 在透明投影层1或调光层2之间或二者相互背离对方的外侧还可以有其他层，例如：结合层、加强层、消反射层、吸收层、增透层等，并且，本领域技术人员应当理解，这些层可以被理解为是透明投影层1或调光层2的一部分。
本申请中，所述的调光透明投影膜01可与投影仪02搭配使用，投影仪和观察者均位于调光透明投影膜的透明投影层一侧，投影仪投影输出光线将图像投射在透明投影层上，观察者通过透明投影层1的漫反射看到投影图像，同时，观察者在观察区域内还可同时看到调光透明投影膜01后面的物体，当调光透明投影膜01背侧光线环境较强时，较多环境光线透过调光透明投影膜，进入观察者视线中，对投影图像观察效果产生影响，此时通过改变调光层透过率，调整背侧入射光线的强弱，同时不影响透明投影层1的反射成像效率，可实现最佳的前置投影和后侧物体的观察效果。
虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施方式中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。
上文所列出的一系列的详细说明仅仅是针对本发明的可行性实施方式的具体说明，它们并非用以限制本发明的保护范围，凡未脱离本发明技艺精神所作的等效实施方式或变更均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种调光透明投影膜，其特征在于，所述调光透明投影膜包括平行设置的透明投影层和调光层，所述透明投影层在对预先设定的反射光进行漫反射实现正投投影的同时呈现所述透明投影层后的真实世界环境，所述调光层为透过率可调的透明层，所述调光层的透过率在0.5％-80％之间连续调整。
  2. 如权利要求1所述的调光透明投影膜，其特征在于，所述调光层采用SPD调光器件或染料液晶调光器件。
  3. 如权利要求1所述的调光透明投影膜，其特征在于，所述透明投影层包括基层、随机结构层、镀层以及折射率匹配层。
  4. 如权利要求3所述的调光透明投影膜，其特征在于，所述随机结构层与所述折射率匹配层的折射率基本相同。
  5. 如权利要求1所述的调光透明投影膜，其特征在于，所述调光层位于所述透明投影层的背离设置投影机的一侧。
  6. 如权利要求1所述的调光透明投影膜，其特征在于，所述调光层包括依次设置的第一透明基底、第一透明导电层、调光材料层、第二透明导电层和第二透明基底。
  7. 如权利要求6所述的调光透明投影膜，其特征在于，还包括位于所述第一透明基底和所述第二透明基底之间的支撑结构。
  8. 如权利要求7所述的调光透明投影膜，其特征在于，所述支撑结构为柱状支撑机构或间隔球，所述支撑结构的材料为树脂、玻璃纤维以及无机材料中的至少一种。
  9. 如权利要求1所述的调光透明投影膜，其特征在于，还包括位于所述透明投影层和所述调光层之间的吸附层或透明胶层。
  10. 如权利要求9所述的调光透明投影膜，其特征在于，所述吸附层为含氢量为0.1wt％-5wt％的含氢硅油。
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