CN216622952U

CN216622952U - Projection curtain and projection system

Info

Publication number: CN216622952U
Application number: CN202122841265.2U
Authority: CN
Inventors: 张哲�
Original assignee: Chengdu Jimi Technology Co Ltd
Current assignee: Chengdu Jimi Technology Co Ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-05-27
Anticipated expiration: 2031-11-18

Abstract

A projection curtain and a projection system relate to the technical field of projection display. The projection curtain comprises a Fresnel lens layer, a dimming film reflecting layer and a mural layer which are sequentially arranged; the mural pattern is arranged on one surface of the mural layer close to the dimming thin film reflecting layer, and the transmittance of the dimming thin film reflecting layer can be changed by adjusting the voltage introduced into the dimming thin film reflecting layer; when the dimming film reflecting layer is electrified, the transmittance of the dimming film reflecting layer is increased, and light beams can penetrate through the dimming film reflecting layer to present mural patterns of the mural layer; when the dimming film reflecting layer is powered off, the atomization degree of the dimming film reflecting layer is increased, and light beams are reflected by the dimming film reflecting layer and then enter human eyes. The projection system comprises a projection device and the projection curtain. This projection curtain can present as the mural painting when not using, can play the decoration effect to indoor, improves user experience.

Description

Projection curtain and projection system

Technical Field

The utility model relates to the technical field of projection display, in particular to a projection curtain and a projection system.

Background

With the increasing development of projection technology, images displayed by a projector in combination with a projection screen are well received by consumers pursuing an ultra-large picture effect due to the advantages of wide color gamut, high brightness, long service life and the like. However, in order to achieve a fine screen presentation effect, a fine projection screen is indispensable in addition to a high-quality projector. It can be said that the quality of the projection screen directly determines the display effect of the projection picture, and the matching of the projector and the projection screen is a complete projection display system.

Optical projection screens are largely divided into hard screens and soft screens. The soft screen can be curled, mainly a black grid (or line grid) projection screen, with the texture structure facing outward, but the display effect is affected by looseness, wrinkles and the like even after long-term use. The hard curtain can not be folded, the Fresnel projection curtain is taken as a main part, the texture structure faces inwards, and the effect of resisting ambient light interference is better. At present, the most commonly used optical projection screen is a hard screen, however, the existing hard screen is a gray black plate when not in use, which affects the indoor visual effect and causes poor user experience.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a projection curtain and a projection system, which can be presented as a mural when not in use, can play a role in decorating rooms, and improve user experience.

The embodiment of the utility model is realized by the following steps:

in one aspect of the utility model, a projection curtain is provided, which comprises a fresnel lens layer, a light-adjusting film reflecting layer and a mural layer, which are arranged in sequence; the mural pattern is arranged on one surface of the mural layer close to the dimming thin film reflecting layer, and the transmittance of the dimming thin film reflecting layer can be changed by adjusting the voltage introduced into the dimming thin film reflecting layer; when the dimming film reflecting layer is electrified, the dimming film reflecting layer is in a light-transmitting state, and light beams penetrate through the dimming film reflecting layer to present mural patterns of the mural layer; when the light modulation film reflecting layer is powered off, the light modulation film reflecting layer is in an atomized state, and light beams are reflected by the light modulation film reflecting layer and then enter human eyes. This projection curtain can present as the mural painting when not using, can play the decorative effect to the indoor, improves user experience.

Optionally, the dimming film reflection layer comprises a dimming film layer and a first reflection layer coated on one side of the dimming film layer close to the fresnel lens layer, and the transmittance of the dimming film reflection layer can be changed by adjusting the voltage introduced into the dimming film layer.

Optionally, the dimming film reflective layer further comprises a second reflective layer coated on a side of the dimming film layer adjacent to the mural layer.

Optionally, the first reflective layer and/or the second reflective layer has a transmittance of between 45% and 55%.

Optionally, the mural layer is a liquid crystal display layer.

Optionally, the mural layer is laminated to a side of the light modulating film reflective layer remote from the fresnel lens layer.

Optionally, the mural layer comprises a frame and a mural cloth inlaid within the frame.

Optionally, when the dimming thin film reflective layer is in the fogging state, the projection curtain is in the projection mode, and the fogging degree of the dimming thin film reflective layer is greater than or equal to 90%.

Optionally, when the light-adjusting thin film reflective layer is in a light-transmitting state, the projection curtain is in a mural mode, and the light transmittance of the light-adjusting thin film reflective layer is greater than or equal to 90%.

Optionally, the projection screen further comprises a controller for powering on the light modulating thin film reflective layer when the projection screen is not activated and powering off the light modulating thin film reflective layer when the projection screen is activated.

In another aspect of the present invention, a projection system is provided, which includes a projection device and the projection curtain, wherein the projection device is used for projecting a projection picture onto the projection curtain.

Optionally, the projection system further includes a controller, when the projection apparatus is turned on, the controller controls the dimming thin film reflective layer of the projection curtain to be powered off, so that the dimming thin film reflective layer is in an atomized state, and the light beam is reflected by the dimming thin film reflective layer and then enters the human eye; when the projection device is not started, the controller controls the dimming film reflecting layer to be electrified so that the light beam penetrates through the dimming film reflecting layer to present the mural patterns of the mural layer of the projection curtain.

The beneficial effects of the utility model include:

the projection curtain provided by the application comprises a Fresnel lens layer, a dimming film reflecting layer and a mural layer which are sequentially arranged; the mural pattern is arranged on one side, close to the dimming thin film reflecting layer, of the mural layer, and the transmittance of the dimming thin film reflecting layer can be changed by adjusting the voltage introduced into the dimming thin film reflecting layer. When the dimming film reflecting layer is electrified, the dimming film reflecting layer is in a light-transmitting state, and light beams can penetrate through the dimming film reflecting layer to present mural patterns of the mural layer; when the dimming film reflecting layer is powered off, the dimming film reflecting layer is in an atomized state, and light beams are reflected by the dimming film reflecting layer and then enter human eyes. Thus, in a feasible mode, after the projection curtain is started (namely when projection is needed), the controller automatically cuts off the power of the dimming film reflecting layer, the atomization degree of the dimming film reflecting layer is increased, the dimming film reflecting layer is changed into a non-transparent mode, and at the moment, the projection curtain is in a projection mode; after the projection curtain is closed (when not needing the projection promptly), the controller is automatic to be switched on to the film reflection stratum that adjusts luminance, and the film reflection stratum that adjusts luminance transmittance increases, and the film reflection stratum that adjusts luminance becomes transparent mode, and at this moment, the projection curtain presents the mural painting mode. In another feasible mode, the conversion between the projection mode and the mural mode can be realized by the participation of a user in forced power-on or power-off, and at the moment, when the projection is not needed, the user can power on the dimming film reflecting layer, so that the transmittance of the dimming film reflecting layer is increased, light beams can penetrate through the dimming film reflecting layer and enter the mural layer, and therefore the mural patterns of the mural layer are displayed, and at the moment, the projection curtain can be used as a mural to decorate the indoor space; when needs projection, the user can cut off the power supply to the film reflection stratum of adjusting luminance, and like this, the transmittance of the film reflection stratum of adjusting luminance reduces, and the fog degree increases, and at this moment, the film reflection stratum of adjusting luminance is turned into non-transparent mode by transparent mode, and the light beam incides people's eye after through the reflection of the film reflection stratum of adjusting luminance, and at this moment, the projection curtain is from mural painting mode conversion to projection mode. This application can be so that the projection curtain switches between mural painting mode and projection mode through setting up light modulation film reflection stratum and mural painting layer to make the projection curtain of this application can play the effect that the projection shows, also can play the effect of decorating the interior space when not using, thereby improve user experience.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of a projection curtain according to some embodiments of the present invention;

fig. 2 is a schematic structural diagram of a reflective layer of a dimming film according to some embodiments of the present invention.

Icon: 10-a scratch resistant layer; 20-color layer; 30-a diffusion layer; 40-a lenticular lens layer; 50-speckle suppression layer; 60-a fresnel lens layer; 70-a light modulating thin film reflective layer; 71-a dimming thin film layer; 72-a first reflective layer; 73-a second reflective layer; 80-mural layer; 90-coating black layer.

Detailed Description

The embodiments set forth below represent the necessary information to enable those skilled in the art to practice the embodiments and illustrate the best mode of practicing the embodiments. Upon reading the following description in light of the accompanying drawing figures, those skilled in the art will understand the concepts of the utility model and will recognize applications of these concepts not particularly addressed herein. It should be understood that these concepts and applications fall within the scope of the utility model and the accompanying claims.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It will be understood that when an element such as a layer, region or substrate is referred to as being "on" or "extending" onto "another element, it can be directly on or extend directly onto the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" or extending "directly onto" another element, there are no intervening elements present. Also, it will be understood that when an element such as a layer, region or substrate is referred to as being "on" or "extending over" another element, it can be directly on or extend directly over the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" or extending "directly over" another element, there are no intervening elements present. It will also be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present.

Relative terms such as "below …" or "above …" or "upper" or "lower" or "horizontal" or "vertical" may be used herein to describe one element, layer or region's relationship to another element, layer or region as illustrated in the figures. It will be understood that these terms and those discussed above are intended to encompass different orientations of the device in addition to the orientation depicted in the figures.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms used herein should be interpreted as having a meaning that is consistent with their meaning in the context of this specification and the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Referring to fig. 1, the present embodiment provides a projection curtain, which includes a fresnel lens layer 60, a light-adjusting thin film reflective layer 70 and a mural layer 80 sequentially disposed; the mural pattern is disposed on one side of the mural layer 80 close to the dimming thin film reflective layer 70, and the transmittance of the dimming thin film reflective layer 70 can be changed by adjusting the voltage applied to the dimming thin film reflective layer 70. When the dimming thin film reflection layer 70 is powered on, the dimming thin film reflection layer 70 is in a light-transmitting state, and light beams can penetrate through the dimming thin film reflection layer 70 to present mural patterns of the mural layer 80; when the dimming thin film reflective layer 70 is powered off, the dimming thin film reflective layer 70 is in an atomized state, and light beams are reflected by the dimming thin film reflective layer 70 and then enter human eyes.

Optionally, the projection curtain provided by the present application may further include a scratch resistant layer 10, a color layer 20, a diffusion layer 30, a lenticular lens layer 40, a speckle reduction layer 50, and a blackout layer 90, as shown in fig. 1. The scratch-resistant layer 10, the color layer 20, the diffusion layer 30, the lenticular lens layer 40, the speckle suppression layer 50, the fresnel lens layer 60, the dimming film reflection layer 70, the mural layer 80 and the blacking layer 90 are sequentially arranged. The projection curtain provided herein will be explained below by taking as an example that the projection curtain includes the scratch resistant layer 10, the color layer 20, the diffusion layer 30, the lenticular lens layer 40, the speckle suppression layer 50, the fresnel lens layer 60, the dimming thin film reflective layer 70, the mural layer 80, and the blackout layer 90.

Wherein, scratch resistance layer 10 is located the outside of projection curtain, and the purpose that this application set up scratch resistance layer 10 is mainly in order to prevent in use fish tail projection curtain, and then prolongs the life of projection curtain. The material of the scratch-resistant layer 10 is not limited, and those skilled in the art can select a suitable material according to the needs. In addition, the scratch resistant layer 10 may also have an anti-glare function, and the scratch resistant layer 10 may be optionally used.

The color layer 20, i.e. the coloring layer, is located between the scratch resistant layer 10 and the diffusion layer 30, and the light beam of the projected image is incident from the color layer 20 after passing through the scratch resistant layer 10, and the color layer 20 is mainly used for improving the color reduction capability of the projection curtain. For example, the color layer 20 may also include the color layer 20 itself and a hard film layer attached to the color layer 20, where the hard film layer is used to protect the color layer 20.

The diffusion layer 30 is used to homogenize the non-uniform incident light and expand the angle of the outgoing light.

The light beam can diffuse through the lenticular lens layer 40, and a good projection display effect can be ensured when the light beam is viewed at each viewing angle.

In this embodiment, the speckle suppression layer 50 is used to improve the speckle problem of the laser and improve the imaging quality of the display image of the projection curtain.

The fresnel lens layer 60 is used to collimate and collimate the incident light beam within a certain angle range, and to disperse the light beam reflected from the reflective layer 70.

The dimming thin film reflective layer 70 is an optical layer whose transmittance can be adjusted by adjusting a voltage. In this embodiment, optionally, when the light modulation film reflective layer 70 is in the fogging state, the projection screen is in the projection mode, and the fogging degree of the light modulation film reflective layer 70 is greater than or equal to 90%. For example, the haze degree of the light adjusting thin film reflective layer 70 may be 90%, 91%, 93%, 95%, 96%, 99%, or 100%, which is not listed in this application. Optionally, when the light modulation film reflective layer 70 is in a light-transmitting state, the projection screen is in a mural mode, and the light transmittance of the light modulation film reflective layer 70 is greater than or equal to 90%. For example, the light transmittance of the dimming thin film reflective layer 70 may be 90%, 93%, 95%, 97%, 98%, 99%, or 100%, etc. The light modulating thin film reflective layer 70 has a plurality of dispersed micro liquid crystal cells sandwiched between transparent conductive films. When light is irradiated to the dimming thin film reflection layer 70, a strong scattering effect is generated, thereby making the dimming thin film reflection layer 70 opaque. When a voltage is applied to the reflective layer 70, the cells are oriented and light can be directed through the light control glass to form a transparent state.

The mural layer 80 is disposed on a side of the light modulation film reflection layer 70 away from the fresnel lens layer 60, so that the mural layer 80 can be displayed or not displayed by adjusting the transmittance of the light modulation film reflection layer 70. The mural pattern is provided on a surface of the mural layer 80 adjacent to the light-adjusting thin film reflective layer 70. The mural pattern user can select the mural pattern according to the preference of the mural pattern user, and the mural pattern selection method is not limited in the application.

In this embodiment, the black coating 90 may be made of a non-reflective dark material, which is used to absorb the ambient light passing through the fresnel lens layer 60, so as to achieve the purpose of light resistance. In addition, in the present embodiment, the black coating layer 90 also serves as a back glue layer, so that the user can stick it on the hard plate material, thereby improving the flatness of the projection screen.

To sum up, the projection curtain provided by the application comprises a fresnel lens layer 60, a dimming film reflection layer 70 and a mural layer which are sequentially arranged; the mural pattern is disposed on a surface of the mural layer 80 adjacent to the light modulation film reflective layer 70, and the transmittance of the light modulation film reflective layer 70 can be changed by adjusting the voltage applied to the light modulation film reflective layer 70. When the dimming thin film reflection layer 70 is powered on, the dimming thin film reflection layer 70 is in a light-transmitting state, and light beams can penetrate through the dimming thin film reflection layer 70 to present mural patterns of the mural layer 80; when the dimming thin film reflective layer 70 is powered off, the dimming thin film reflective layer 70 is in an atomized state, and light beams are reflected by the dimming thin film reflective layer 70 and then enter human eyes. Thus, in a feasible manner, after the projection curtain is turned on (i.e. when projection is needed), the controller automatically powers off the dimming thin film reflective layer 70, the atomization degree of the dimming thin film reflective layer 70 is increased, the dimming thin film reflective layer 70 is changed into a non-transparent mode, and at this time, the projection curtain is in a projection mode; after the projection curtain is closed (i.e. when projection is not needed), the controller automatically energizes the dimming film reflective layer 70, the transmittance of the dimming film reflective layer 70 is increased, the dimming film reflective layer 70 is changed into a transparent mode, and at the moment, the projection curtain presents a mural painting mode. In another feasible mode, the user can also participate in forcibly powering on or powering off the dimming film reflecting layer 70 to realize the conversion between the projection mode and the mural mode, at this time, when the projection is not needed, the user can power on the dimming film reflecting layer 70, so that the transmittance of the dimming film reflecting layer 70 is increased, the light beam can penetrate through the dimming film reflecting layer 70 to enter the mural layer 80, and the mural pattern of the mural layer 80 is displayed, and at this time, the projection curtain can be used as a mural to decorate the room; when projection is needed, a user can cut off the power of the dimming film reflecting layer 70, so that the transmittance of the dimming film reflecting layer 70 is reduced, the atomization degree is increased, at the moment, the dimming film reflecting layer 70 is converted into a non-transparent mode from a transparent mode, light beams are reflected by the dimming film reflecting layer 70 and then enter human eyes, and at the moment, the projection curtain is converted into a projection mode from a mural mode. This application can be so that the projection curtain switches between mural painting mode and projection mode through setting up light modulation film reflection stratum 70 and mural painting layer 80 to make the projection curtain of this application can play the effect that the projection shows, also can play the effect of decorating the interior space when not using, thereby improve user experience.

Optionally, the light modulation film reflection layer 70 includes a light modulation film layer 71 and a first reflection layer 72 coated on one side of the light modulation film layer 71 close to the fresnel lens layer 60, and the transmittance of the light modulation film reflection layer 70 can be changed by adjusting the voltage applied to the light modulation film layer 71. By coating the first reflecting layer 72 on the dimming thin film layer 71, the dimming thin film not only has the function of adjusting the light beam transmission amount, but also has the effect of enhancing reflection.

Referring to fig. 2, the dimming thin film reflective layer 70 further includes a second reflective layer 73 coated on a side of the dimming thin film layer 71 close to the mural layer 80. Namely, a reflection enhancing coating is added on each of the two surfaces of the dimming film layer 71.

Illustratively, the transmittance of the first and/or second reflective layers 72, 73 is between 45% and 55%. For example, the first reflective layer 72 and/or the second reflective layer 73 may have a transmittance of 45%, 50%, 55%, or the like.

In one embodiment, the mural layer 80 provided herein is a liquid crystal display layer. Thus, the user can select the mural pattern displayed on the liquid crystal display screen based on the requirement of the user.

In another embodiment, the mural layer 80 is laminated to the side of the light modulating film reflective layer 70 remote from the fresnel lens layer 60. That is, the mural layer 80 adopts a certain mural pattern and presses the mural pattern on one surface of the light-adjusting thin film reflection layer 70, so that the overall thickness of the projection screen can be reduced, and the projection screen can be made light and thin.

In yet another embodiment, the mural layer 80 may further include a frame and a wallcovering inlaid within the frame. Like this, the user can be as required to inlay the mural cloth of inlaying in the frame and change, and then in order to satisfy different aesthetic requirements of different users.

Optionally, the projection curtain provided herein can further include a controller for controlling the energization or de-energization of the dimming thin film reflective layer 70. In this embodiment, the controller is configured to power on the light modulation reflective film 70 when the projection screen is not activated, and to power off the light modulation reflective film 70 when the projection screen is activated.

Under the condition of normal film viewing, the controller can be used for controlling the dimming film reflecting layer 70 to be powered off, so that the atomization degree of the dimming film reflecting layer 70 is increased (the transmittance is reduced), the mural patterns of the mural layer 80 cannot be displayed, and the film viewing experience of a user is prevented from being influenced; in the case of no viewing, the controller is configured to control the dimming thin film reflective layer 70 to be powered on, and the transmittance of the dimming thin film reflective layer 70 is increased, so that the mural pattern of the mural layer 80 can be displayed.

In another aspect of the present invention, a projection system is provided, which includes a projection device and the projection curtain, wherein the projection device is used for projecting a projection picture onto the projection curtain. Since the structure and the advantages of the projection curtain have been described in detail in the foregoing, the present application is not described herein again.

Optionally, the projection system provided by the application further includes a controller, so that, when in use, the projection screen and the controller may be in communication connection through the bluetooth of the whole machine, at this time, when the projection screen is not turned on (i.e., when projection is not needed), the controller sends a non-turn-on signal to the dimming thin film reflective layer 70 through the bluetooth of the whole machine, and then the controller energizes the dimming thin film reflective layer 70, at this time, the dimming thin film reflective layer 70 is changed into a transparent mode, and the projection screen is changed into a mural mode; on the contrary, after the projection screen is turned on (i.e. when projection is needed), the controller sends a power-on signal to the dimming film reflection layer 70 through the whole bluetooth, and then the controller powers off the dimming film reflection layer 70, at this time, the dimming film reflection layer 70 is changed from the transparent mode to the non-transparent mode, and the projection screen is changed from the mural mode to the projection mode.

The above description is only an alternative embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the utility model is not described in any way for the possible combinations in order to avoid unnecessary repetition.

Claims

1. A projection curtain is characterized by comprising a Fresnel lens layer, a dimming film reflecting layer and a mural layer which are sequentially arranged; the mural pattern is arranged on one surface of the mural layer close to the dimming thin film reflecting layer, and the transmittance of the dimming thin film reflecting layer can be changed by adjusting the voltage introduced into the dimming thin film reflecting layer;

when the dimming thin film reflecting layer is electrified, the dimming thin film reflecting layer is in a light-transmitting state, and light beams penetrate through the dimming thin film reflecting layer to present mural patterns of the mural layer; when the dimming film reflecting layer is powered off, the dimming film reflecting layer is in an atomizing state, and light beams are reflected by the dimming film reflecting layer and then enter human eyes.

2. The projection curtain of claim 1, wherein the light modulating film reflective layer comprises a light modulating film layer and a first reflective layer coated on a side of the light modulating film layer adjacent to the fresnel lens layer, and wherein adjusting a voltage across the light modulating film layer changes a transmittance of the light modulating film reflective layer.

3. The projection curtain of claim 2, wherein the light modulating thin film reflective layer further comprises a second reflective layer applied to a side of the light modulating thin film layer adjacent to the mural layer.

4. The projection curtain of claim 3, wherein the first reflective layer and/or the second reflective layer has a transmittance of between 45% and 55%.

5. The projection curtain of claim 1, wherein the mural layer is a liquid crystal display layer.

6. The projection curtain of claim 1, wherein the mural layer is embossed on a side of the light modulating film reflective layer distal from the fresnel lens layer.

7. The projection curtain of claim 1, wherein the mural layer comprises a frame and a mural embedded within the frame.

8. The projection curtain of claim 1, wherein the projection curtain is in a projection mode when the light modulating thin film reflective layer is in a fogging state, and wherein a fogging level of the light modulating thin film reflective layer is greater than or equal to 90%.

9. The projection curtain of claim 1 or 8, wherein the projection curtain is in a mural mode when the light modulating thin film reflective layer is in a light transmissive state, the light transmissive of the light modulating thin film reflective layer being greater than or equal to 90%.

10. The projection curtain of claim 1, further comprising a controller to energize the dimming thin film reflective layer when the projection curtain is not activated and to de-energize the dimming thin film reflective layer when the projection curtain is activated.

11. A projection system comprising a projection device and a projection screen as claimed in any one of claims 1 to 10, the projection device being configured to project a projection image onto the projection screen.