Semi-reflective and semi-transparent dimming film imaging device, imaging method and application

Abstract

The invention provides a semi-reflecting and semi-transmitting dimming film imaging device, an imaging method and application, and relates to the technical field of optical imaging display. Comprising a top plate, a bottom plate, a back plate and a front plate, a semi-reflecting and semi-transmitting medium is obliquely arranged between the top plate and the bottom plate, and the semi-reflecting and semi-transmitting medium is provided with an electric adjusting piece; the front plate is transparent, a light source is arranged below the top plate and / or above the bottom plate, a film rear space is formed between the semi-reflecting and semi-transmitting medium and the back plate, and a film rear scene can be arranged in the film rear space; according to the invention, the size and weight of the device are greatly reduced, a simple manual control transmissivity light splitting function is realized, when the semi-reflecting and semi-transparent medium is in a transparent state, an image presents a suspension projection effect, meanwhile, scenery behind the film can be displayed, the image projected by the light source can explain and explain the scenery needing to be displayed, and the display effect is good. The decoration effect can be enhanced; and when the electro-dimming film is in a non-transparent state, the image can present a clear reflection projection effect, so that the electro-dimming film can be conveniently applied to use scenes of small devices convenient to carry.

Description

Technical Field

[0001] The present invention relates to the field of optical imaging display technology, and in particular to a semi-reflective and semi-transmissive dimming film imaging device and an imaging method and application thereof. Background Art

[0002] In projection and display technology, a semi-transparent and semi-reflective prism is used to split the light in order to achieve the guidance and imaging of the light path. Part of the light is reflected on the inclined surface of the prism, and part of the light is projected on the inclined surface of the prism. It can be achieved that the same or related images are formed in both the reflection and projection directions of the light. Furthermore, the reflected image and the projected image can be combined, matched or mixed again according to different light characteristics through the design of the light path, thereby achieving a variety of optical imaging effects.

[0003] The Chinese invention patent with the publication number CN115799146A provides an optical alignment system, in which semi-transparent and semi-reflective prisms are used in many places to achieve light modulation and image formation. The Chinese invention patent with the publication number CN115469503A discloses a projection system combining laser and LED light sources, in which semi-transparent and semi-reflective prisms are used in the LED projector structure.

[0004] However, there are two shortcomings in the use of prisms. First, most prisms are made of transparent solid materials, such as glass, crystal, resin, etc. Some are triangular prisms, and some are quadrangular prisms made of two triangular prisms. These prisms are heavy and take up a lot of space, and are not suitable for lightweight and miniaturized application scenarios. Second, most prisms are made of transparent materials, and the optical design of the reflection-projection ratio on the inclined surface of the prism is used to achieve a certain ratio of reflection-projection spectroscopy. This ratio is a fixed value and cannot adapt to a wider range of applications. Summary of the invention

[0005] In view of the defects in the prior art, the first object of the present invention is to provide a semi-reflective and semi-transmissive dimming film imaging device suitable for lightweight and miniaturization. The first object of the present invention is achieved by the following technical scheme: a semi-reflective and semi-transmissive dimming film imaging device, comprising a top plate, a bottom plate, a back plate, and a front plate; a semi-reflective and semi-transmissive medium is arranged between the top plate and the bottom plate, and the semi-reflective and semi-transmissive medium is arranged obliquely downward from the top plate to the bottom plate;

[0006] The front plate is transparent, a light source is arranged below the top plate and / or above the bottom plate, and the semi-reflective and semi-transmissive medium is provided with an active adjustment device or a passive adjustment device.

[0007] The semi-reflective and semi-permeable medium referred to in the present invention is a sheet-like semi-reflective and semi-permeable medium.

[0008] Through the above technical scheme, the semi-transparent and semi-reflective prisms or semi-transparent and semi-reflective lenses used in existing micro-projector technology or AR technology all have the problems of heavy weight and large volume. Moreover, the splitting ratio of the semi-transparent and semi-reflective beam splitter is a fixed value, which cannot be simply controlled manually. The present invention replaces the semi-reflective and semi-transparent prism with a semi-reflective and semi-transparent medium, while greatly reducing the volume and weight of the device, introducing active or passive dimming capabilities to achieve a controllable variable transmittance splitting function. When the existing dimming film is used as a curtain wall for front projection, the person on the back will know the projected content. If it is rear projection, the viewer will see the instrument and equipment, and the superposition will make the field of vision unclear. The present invention sets the semi-reflective and semi-transparent medium at an angle, places the light source at the top or bottom of the semi-reflective and semi-transparent medium, and the incident light is irradiated on the semi-reflective and semi-transparent medium. A part of the light is reflected to the front facing the audience, and the other part continues to be transmitted along the original light path for imaging. Therefore, no matter whether the semi-reflective and semi-transparent medium is in a transparent state or an opaque state, the audience in the front will not see the scenery on the back, and the people on the back will not see the image displayed by the light source, so as to achieve a good projection effect and privacy.

[0009] Furthermore, when the light source is located on the lower surface of the top plate, the semi-reflective and semi-transmissive medium is arranged downwardly in a direction from the top plate to the bottom plate, from close to the back plate to close to the front plate;

[0010] When the light source is located on the upper surface of the bottom plate, the semi-reflective and semi-transmissive medium is arranged downwardly from the top plate to the bottom plate in a direction close to the front plate to close to the back plate;

[0011] The space behind the membrane is between the semi-reflective and semi-transmissive medium and the back plate, and the space behind the membrane is provided with the scenery behind the membrane.

[0012] Further, the active adjustment device includes one or more of an electrical adjustment element and a pressure adjustment element; the passive adjustment device includes one or more of an optical adjustment element and a thermal adjustment element;

[0013] The electric adjustment element is used to apply an external electrical signal to adjust the light transmittance of the semi-reflective and semi-transmissive medium through the electric adjustment element. The electric adjustment element can steplessly and gradually adjust the light transmittance of the semi-reflective and semi-transmissive medium or quickly switch the transparent state and the opaque state of the semi-reflective and semi-transmissive medium.

[0014] The light transmittance of the semi-reflective and semi-transmissive medium in a transparent state is greater than 20% and less than 100%, and the light transmittance of the semi-reflective and semi-transmissive medium in an opaque state is less than or equal to 20%.

[0015] Preferably, the light transmittance of the semi-reflective and semi-transmissive medium in a transparent state is greater than or equal to 50%.

[0016] Through the above technical scheme, the present invention can be applied to more occasions. When there is no need to display the scene behind the film, the semi-reflective and semi-transparent medium is kept in an opaque state. When it is necessary to display the scene behind the film, it is adjusted to a transparent state. The image projected by the light source can explain the scene we need to display, and can also be used for decorative enhancement effect.

[0017] Furthermore, the semi-reflective and semi-transmissive medium is one or more composite films selected from electro-dimming film, electrochromic film, thermo-dimming film, thermochromic film, photo-dimming film, photochromic film, piezo-dimming film, piezochromic film, magnetochromic film and magneto-dimming film.

[0018] Through the above technical solution, the electro-optical film is used as a semi-reflective and semi-transparent medium and is placed at an angle, so that the semi-reflective and semi-transparent medium can be controlled to switch between a transparent state and an opaque state, and can also be infinitely adjusted between the two states. When the electro-optical film is in a transparent state, the image will appear as a suspended projection effect; when the electro-optical film is in an opaque state, the image will appear as a clear reflection projection effect, and there are multiple effects to choose from.

[0019] Furthermore, the semi-reflective and semi-transmissive medium is one or more composite films of PDLC dimming film and PNLC dimming film.

[0020] Through the above technical solution, PDLC is usually used as a dimming glass curtain wall and privacy partition in the field of home and building decoration. At the same time, PDLC can be used as a projection screen for front projection or rear projection. However, when PDLC acts as a projection screen, if front projection is used, the projected content will be observed by the person at the back, which is not conducive to privacy; and if rear projection is often used, the projection device behind will be seen by the observer in front in a transparent state, which seriously affects the viewing effect. In the semi-reflective and semi-transparent dimming film imaging device of the present invention, the light is obliquely incident on the dimming film, which can make the audience in the front see the reflected image and prevent the image from being observed by the person at the back. When the dimming film is adjusted to a transparent state, the audience in the front will not be able to see the scenery at the back. At this time, the audience can still see the image reflected in the transparent medium, presenting the effect of suspended projection.

[0021] Furthermore, the PDLC dimming film is black or other dark or deep colors.

[0022] Through the above technical solution, a dark or dark dimming film is selected, and its reflected image effect has a high-contrast black and light effect in an opaque state.

[0023] Furthermore, the semi-reflective and semi-transmissive medium is a composite layer of a plurality of PDLC dimming films and an electrochromic material.

[0024] Furthermore, the semi-reflective and semi-transmissive medium is a PDLC dimming film having a dichroic characteristic.

[0025] Through the above technical solution, when a dichroic or polychromatic material type dimming film is selected, it can not only modulate the transmittance and reflectance, but also change the hue and saturation at the same time, and can achieve electro-chromatic adjustment while providing electro-regulatory transmittance.

[0026] The second object of the present invention is to provide an imaging method for a semi-reflective and semi-transparent dimming film imaging device, and the second object of the present invention is achieved through the following technical scheme: an imaging method for a semi-reflective and semi-transparent dimming film imaging device, comprising the following steps: turning on a light source located on a top plate or a bottom plate, adjusting the transmittance of the semi-reflective and semi-transparent medium through an electric adjustment component, controlling the transmittance-reflection ratio, and adjusting the imaging effect. The light source is placed on the top or bottom of the semi-reflective and semi-transparent medium, and the incident light is irradiated on the semi-reflective and semi-transparent medium. A part of the light is reflected toward the front side facing the audience, and the other part continues to be transmitted along the original light path for imaging. Therefore, no matter whether the semi-reflective and semi-transparent medium is in a transparent state or an opaque state, the audience in the front will not see the scenery on the back, and the people in the back will not see the image displayed by the light source, thereby achieving a good projection effect and privacy.

[0027] The second purpose of the present invention is to provide an application of a semi-reflective and semi-transmissive dimming film imaging device, and the second purpose of the present invention is achieved through the following technical solution: an application of a semi-reflective and semi-transmissive dimming film imaging device, including a semi-reflective and semi-transmissive dimming film imaging device and a storage space. The semi-reflective and semi-transmissive dimming film imaging device in the present invention can be small in size and light in weight, and can be conveniently used in small-sized devices that are easy to carry, such as cosmetic packaging and cosmetic display.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] (1) The semi-reflective and semi-transmissive dimming film imaging device of the present invention comprises a top plate, a bottom plate, a back plate, and a front plate; a semi-reflective and semi-transmissive medium is arranged between the top plate and the bottom plate, and the semi-reflective and semi-transmissive medium is arranged obliquely downward from the top plate to the bottom plate, and the semi-reflective and semi-transmissive medium is provided with an electric adjustment component; the front plate is transparent, and a light source is arranged below the top plate and / or above the bottom plate; while greatly reducing the volume and weight of the device, the electro-dimming capability is introduced to realize a simple artificial control of the transmittance splitting function, thereby achieving a good projection effect and privacy;

[0030] (2) The semi-reflective and semi-transparent dimming film imaging device of the present invention is an electroluminescent dimming film / PDLC dimming film, which facilitates the controlled switching of the semi-reflective and semi-transparent medium between a transparent state and an opaque state, and can also be infinitely adjusted between the two states. There is a space behind the film between the semi-reflective and semi-transparent medium and the back plate, and the space behind the film can be set with scenes behind the film; when the electroluminescent film is in a transparent state, when the transmittance is greater than 20% and less than 100%, the image will appear as a suspended projection effect, and the scene behind the film can be displayed at the same time. The image projected by the light source can explain the scene we need to display, and can also be used for decorative enhancement effect; when the electroluminescent film is in an opaque state, when the transmittance is less than or equal to 20%, the image will present a clear reflection projection effect;

[0031] (3) The semi-reflective and semi-transmissive dimming film imaging device of the present invention is set to black as the semi-reflective and semi-transmissive medium. A dark or dark dimming film is selected. In the opaque state, the reflected image effect has a high-contrast black and light effect.

[0032] (4) The semi-reflective and semi-transparent dimming film imaging device of the present invention is a composite layer of several PDLC dimming films and electrochromic materials or a PDLC dimming film with dichroic characteristics, which can not only modulate the transmittance and reflectance, but also change the hue and saturation at the same time, and can achieve electrochromic color adjustment while providing electrochromic adjustment of transmittance.

[0033] (5) The semi-reflective and semi-transmissive dimming film imaging device of the present invention is small in size and light in weight, and can be conveniently used in small portable devices, such as cosmetic packaging and cosmetic display. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the three-dimensional structure of the semi-reflective and semi-transmissive dimming film imaging device according to an embodiment of the present invention;

[0035] Figure 2 It is a schematic diagram of the three-dimensional structure of the semi-reflective and semi-transmissive dimming film imaging device according to an embodiment of the present invention from another direction;

[0036] Figure numerals: 1. top plate; 2. bottom plate; 3. back plate; 4. front plate; 5. semi-reflective and semi-transmissive medium; 6. light source; 7. space behind the membrane; 8. scenery behind the membrane; 9. storage space. DETAILED DESCRIPTION

[0037] The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. In the following description, in order to clearly show the structure and working mode of the present invention, it will be described with the help of many directional words, but the words "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", "down" and the like should be understood as convenient terms and should not be understood as restrictive terms. The "far" and "near" in the "far section", "distal end", "near section" and "near end" herein are relative to the position of the operator, that is, "near" is close to the operator and "far" is far away from the operator.

[0038] For those skilled in the art, without departing from the concept of the present invention, several changes and improvements can be made, which all belong to the protection scope of the present invention. The endpoints and any values ​​of the ranges disclosed herein are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, the endpoint values ​​of each range, the endpoint values ​​of each range and the individual point values, and the individual point values ​​can be combined with each other to obtain one or more new numerical ranges, and these numerical ranges should be regarded as specifically disclosed in this article. The present invention is described in detail below in conjunction with specific embodiments:

[0039] Embodiment 1:

[0040] like Figure 1 As shown, the present embodiment relates to a semi-reflective and semi-transparent dimming film imaging device, comprising a top plate 1, a bottom plate 2, a back plate 3, and a front plate 4; a semi-reflective and semi-transparent medium 5 is arranged between the top plate 1 and the bottom plate 2, and the semi-reflective and semi-transparent medium 5 is arranged obliquely downward from the top plate 1 to the bottom plate 2. The front plate 4 is transparent, a light source 6 is arranged below the top plate 1 and / or above the bottom plate 2, and the semi-reflective and semi-transparent medium 5 is provided with an active adjustment device or a passive adjustment device. The active adjustment device includes one or more of an electric adjustment component and a pressure adjustment component; the passive adjustment device includes one or more of an optical adjustment component and a thermal adjustment component; specifically, the electric adjustment component is electrically driven to adjust the transmittance of the semi-reflective and semi-transparent medium 5 by applying an external electrical signal, and the electric adjustment component can steplessly and gradually adjust the transmittance of the semi-reflective and semi-transparent medium 5 or quickly switch the transparent state and the opaque state of the semi-reflective and semi-transparent medium 5. The power supply can be selected to be the same as the power supply of the light source 6. The pressure regulating member similarly adjusts the transmittance of the semi-reflective and semi-transmissive medium 5 by pressure-driven means; the passive regulating device includes but is not limited to photochromic, thermochromic and other means to adjust the transmittance of the semi-reflective and semi-transmissive medium 5.

[0041] like Figure 2As shown, in a specific embodiment, when the light source 6 is located on the lower surface of the top plate 1, the semi-reflective and semi-transmissive medium 5 is arranged downwardly from the top plate 1 to the bottom plate 2 in a direction close to the back plate 3 toward the front plate 4. In another specific embodiment, when the light source 6 is located on the upper surface of the bottom plate 2, the semi-reflective and semi-transmissive medium 5 is arranged downwardly from the top plate 1 to the bottom plate 2 in a direction close to the front plate 4 toward the back plate 3.

[0042] In a specific embodiment, the semi-reflective and semi-transmissive medium 5 is one or more composite films selected from electro-optical film, electrochromic film, thermo-optical film, thermochromic film, photo-optical film, photochromic film, piezo-optical film, piezochromic film, magnetochromic film, and magneto-optical film.

[0043] By tilting the semi-reflective and semi-transparent medium 5, the semi-reflective and semi-transparent medium 5 can be controlled to switch between a transparent state and an opaque state, or can be infinitely adjusted between the two states. When the electro-optical film is in a transparent state, the image will appear as a suspended projection effect; when the electro-optical film is in an opaque state, the image will appear as a clear reflection projection effect.

[0044] In a specific embodiment, there is a space behind the film 7 between the semi-reflective and semi-transparent medium 5 and the back plate 3, and a scene behind the film 8 can be set on the side of the space behind the film 7 close to the back plate 3. The semi-reflective and semi-transparent medium 5 is an electroluminescent film, and the semi-reflective and semi-transparent medium 5 is a PDLC dimming film. The light transmittance of the semi-reflective and semi-transparent medium 5 in a transparent state is greater than 20% and less than 100%, and the light transmittance of the semi-reflective and semi-transparent medium 5 in an opaque state is less than or equal to 20%. For a better user experience, the light transmittance of the semi-reflective and semi-transparent medium 5 in a transparent state is greater than or equal to 50%. The present invention can be applied to more occasions. When the scene behind the film 8 does not need to be displayed, the semi-reflective and semi-transparent medium 5 is in an opaque state, and when the scene behind the film 8 needs to be displayed, it is adjusted to a transparent state. The image projected by the light source 6 can explain the scene we need to display, and can also be used for decorative enhancement effect.

[0045] The present invention replaces the semi-reflective and semi-transparent prism with a dimming film, which greatly reduces the volume and weight of the device while introducing the electro-dimming capability to achieve a controllable variable transmittance spectroscopic function. The light source 6 is placed on the top or bottom of the semi-reflective and semi-transparent medium 5, and the incident light is irradiated on the semi-reflective and semi-transparent medium 5. A part of the light is reflected to the front side facing the audience, and the other part continues to be transmitted along the original light path to form an image. Therefore, no matter whether the semi-reflective and semi-transparent medium 5 is in a transparent state or an opaque state, the audience at the front will not see the scenery at the back, and the people at the back will not see the image displayed by the light source 6.

[0046] Specifically, the semi-reflective and semi-transparent medium (5) is one or more composite films of PDLC dimming film and PNLC dimming film. PDLC is usually used as dimming glass curtain wall and privacy partition in the field of home and building decoration. At the same time, PDLC can be used as a projection screen for front projection or rear projection. However, when PDLC acts as a projection screen, if front projection is used, the projected content will be observed by the person at the back, which is not conducive to privacy; and if rear projection is used, the projection device at the back will be seen by the observer in front in the transparent state, which seriously affects the viewing effect. In the semi-reflective and semi-transparent dimming film imaging device of the present invention, the light is obliquely incident on the dimming film, which can make the audience in the front see the reflected image and prevent the image from being observed by the person at the back. When the dimming film is adjusted to a transparent state, the audience in the front will not be able to see the scenery at the back. At this time, the audience can still see the image reflected in the transparent medium, presenting the effect of suspended projection.

[0047] In a specific embodiment, the PDLC dimming film is dark or dark in color, specifically black. The dark or dark dimming film has a high-contrast black and light color effect in an opaque state.

[0048] In a specific embodiment, the semi-reflective and semi-transmissive medium 5 is a composite layer of several PDLC dimming films and electrochromic materials. In another specific embodiment, the semi-reflective and semi-transmissive medium 5 is a PDLC dimming film with dichroic characteristics. When a dichroic or polychromatic material type dimming film is selected, it can not only modulate the transmittance and reflectivity, but also change the hue and saturation at the same time, and can realize the adjustment of electrochromic color while providing electro-adjustable transmittance.

[0049] Embodiment 2:

[0050] The present embodiment relates to an imaging method of a semi-reflective and semi-transmissive dimming film imaging device, comprising the following steps: turning on a light source 6 located on a top plate 1 or a bottom plate 2, adjusting the transmittance of a semi-reflective and semi-transmissive medium 5 through an electric adjustment component, controlling the transmittance-reflectance ratio, and adjusting the imaging effect. The light source 6 is placed on the top or bottom of the semi-reflective and semi-transmissive medium 5, and the incident light is irradiated on the semi-reflective and semi-transmissive medium 5. A part of the light is reflected toward the front side facing the audience, and the other part continues to be transmitted along the original light path for imaging. Therefore, regardless of whether the semi-reflective and semi-transmissive medium 5 is in a transparent state or an opaque state, the audience at the front side will not see the scene at the back, and the people at the back side will not see the image displayed by the light source 6, thereby achieving a good projection effect and privacy.

[0051] Embodiment 3:

[0052] This embodiment relates to an application of a semi-reflective and semi-transmissive dimming film imaging device, including a semi-reflective and semi-transmissive dimming film imaging device and a storage space 9. The semi-reflective and semi-transmissive dimming film imaging device in the present invention is small in size and light in weight, and is conveniently used in small-sized devices that are easy to carry, such as cosmetic packaging and cosmetic display. In a specific embodiment, the semi-reflective and semi-transmissive dimming film imaging device is a decoration on the top of a cosmetic box, and the storage space 9 contains cosmetics.

[0053] In another specific embodiment, the film scene behind the film space of the semi-reflective and semi-transmissive dimming film imaging device of the present invention is cosmetics, and the entire semi-reflective and semi-transmissive dimming film imaging device can be used as a gift box or packaging box to display the cosmetics.

[0054] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A semi-reflective and semi-transmissive dimming film imaging device, characterized in that: It comprises a top plate (1), a bottom plate (2), a back plate (3), and a front plate (4); a semi-reflective and semi-permeable medium (5) is arranged between the top plate (1) and the bottom plate (2), and the semi-reflective and semi-permeable medium (5) is arranged obliquely downward from the top plate (1) to the bottom plate (2); The front plate (4) is transparent, a light source (6) is provided below the top plate (1) and / or above the bottom plate (2), and the semi-reflective and semi-transmissive medium (5) is provided with an active adjustment device or a passive adjustment device.

2. The semi-reflective and semi-transmissive dimming film imaging device according to claim 1, characterized in that: When the light source (6) is located on the lower surface of the top plate (1), the semi-reflective and semi-transmissive medium (5) is arranged in a slanted downward direction from the top plate (1) to the bottom plate (2) from close to the back plate (3) to close to the front plate (4); When the light source (6) is located on the upper surface of the bottom plate (2), the semi-reflective and semi-transmissive medium (5) is arranged in a slanted downward direction from the top plate (1) to the bottom plate (2) from close to the front plate (4) to close to the back plate (3); A space behind the membrane (7) is provided between the semi-reflective and semi-transmissive medium (5) and the back plate (3), and a scene behind the membrane (8) is provided in the space behind the membrane (7).

3. The semi-reflective and semi-transmissive dimming film imaging device according to claim 1, characterized in that: The active adjustment device includes one or more of an electrical adjustment element and a pressure adjustment element; the passive adjustment device includes one or more of an optical adjustment element and a thermal adjustment element; The electric adjustment component is used to apply an external electrical signal to adjust the light transmittance of the semi-reflective and semi-transmissive medium (5) through the electric adjustment component, and the electric adjustment component can steplessly and gradually adjust the light transmittance of the semi-reflective and semi-transmissive medium (5) or quickly switch the transparent state and the opaque state of the semi-reflective and semi-transmissive medium (5); The light transmittance of the semi-reflective and semi-transmissive medium (5) in a transparent state is greater than 20% and less than 100%, and the light transmittance of the semi-reflective and semi-transmissive medium (5) in an opaque state is less than or equal to 20%.

4. The semi-reflective and semi-transmissive dimming film imaging device according to claim 1, characterized in that: The semi-reflective and semi-transmissive medium (5) is one or more composite films selected from the group consisting of electroluminescent film, electrochromic film, thermoluminescent film, thermochromic film, photoluminescent film, photochromic film, piezoluminescent film, piezochromic film, magnetochromic film and magnetoluminescent film.

5. The semi-reflective and semi-transmissive dimming film imaging device according to claim 1, characterized in that: The semi-reflective and semi-transmissive medium (5) is one or more composite films of PDLC dimming film and PNLC dimming film.

6. The semi-reflective and semi-transmissive dimming film imaging device according to claim 5, characterized in that: The PDLC dimming film is black.

7. The semi-reflective and semi-transmissive dimming film imaging device according to claim 1, characterized in that: The semi-reflective and semi-transmissive medium (5) is a composite layer of a plurality of PDLC dimming films and an electrochromic material.

8. The semi-reflective and semi-transmissive dimming film imaging device according to claim 2, characterized in that: The semi-reflective and semi-transmissive medium (5) is a PDLC dimming film with dichroic characteristics.

9. An imaging method of a semi-reflective and semi-transmissive dimming film imaging device, characterized in that: The method comprises the following steps: turning on a light source (6) located on a top plate (1) or a bottom plate (2), adjusting the light transmittance of a semi-reflective and semi-transmissive medium (5) through an electric adjustment component, controlling the transmission-reflection ratio, and adjusting the imaging effect.

10. An application of a semi-reflective and semi-transmissive dimming film imaging device, characterized in that: It comprises a semi-reflective and semi-transmissive dimming film imaging device and a storage space (9).

Images