Dimmable starry sky atmosphere display device and vehicle skylight and building curtain wall thereof
By combining the liquid crystal dimming film with the starry sky display film and using light strips to activate the starry sky display, a composite function of dimming and luminous decoration is achieved. This solves the problem that single-function photoelectric glass in the existing technology cannot meet the needs of multiple functions, and provides the effects of privacy protection and personalized atmosphere design.
Patent Information
- Application Number
- CN202520094316.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Existing single-function optoelectronic functional glass products cannot meet the needs of automobiles and buildings for intelligent and personalized atmospheres, especially the multi-functional needs of panoramic sunroofs and curtain walls.
By combining a liquid crystal dimming film with a starry sky display film, and activating the starry sky display film with a light strip, a composite function of dimming and luminous decoration is achieved. Combined with the color and pattern changes of the light strip, a unique atmosphere effect is created.
It achieves light transmittance adjustment by switching between dark and bright states, and combined with the color and pattern changes of the starry sky display, it meets the multi-functional needs of vehicle sunroofs and building curtain walls, providing privacy protection and personalized atmosphere design.
Smart Images
Figure CN223857540U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of optoelectronic display technology, specifically to a dimmable starry sky ambient display device and its application in vehicle sunroofs and building curtain walls. Background Technology
[0002] Dimmable display devices typically contain a liquid crystal dimming film. The orientation state of the liquid crystal molecules in the film can change accordingly with the magnitude of the electric field applied to the liquid crystal molecules, thereby altering the light transmittance of the dimmable display device. Currently, dimmable display devices are finding increasingly wide applications, such as as dimming glass in conference rooms, buildings, and vehicles, and as dimming lenses in sunglasses and prescription / hyperprescription glasses.
[0003] Starry sky atmosphere display technology is a technology that creates a dreamlike atmosphere by simulating the faint light of stars in the night sky. It is widely used in automobiles, homes, and other places that need to create a specific atmosphere.
[0004] Meanwhile, with the continuous development of the automotive and construction industries, there is a growing desire to apply more intelligent and functional optoelectronic glass to automobiles and buildings. As mentioned above, common types of optoelectronic functional glass include dimmable and luminous decorative laminated glass. Dimmable glass, by introducing a dimmable film between the laminated glass layers, allows the glass to switch between transparent and opaque states, providing privacy protection. Luminous decorative glass, for example, involves introducing light-emitting points between the laminated glass layers. The patterns and colors of the light emission can be customized according to personal preferences, creating a unique in-car atmosphere and meeting individual needs.
[0005] In recent years, with the increasing popularity of panoramic sunroofs in automobiles and curtain walls in buildings, the aforementioned single-function optoelectronic products can no longer meet people's needs. Utility Model Content
[0006] To address the aforementioned technical issues, this application provides a dimmable starry sky atmosphere display device that simultaneously possesses both dimmable and luminous decorative photoelectric functions. This composite photoelectric product can be applied to more scenarios and better meet people's needs.
[0007] To achieve the above objectives, this application provides the following technical solution:
[0008] The adjustable light starry sky atmosphere display device comprises a first light-transmitting layer, a first adhesive layer, a liquid crystal light-adjusting film, a second adhesive layer, a starry sky display film, a third adhesive layer and a second light-transmitting layer arranged in sequence, and further comprises a lamp strip, which is arranged between the second adhesive layer and the third adhesive layer or part of which is embedded in the second adhesive layer and the third adhesive layer at the same time; the length direction of the lamp strip is parallel to the plane of the first light-transmitting layer or the second light-transmitting layer, and the lamp strip is adjacent to the starry sky display film.
[0009] The adjustable light starry sky atmosphere display device of the present application organically combines the liquid crystal light-adjusting film and the starry sky display film. The liquid crystal light-adjusting film can adjust its light transmittance and switch between dark state and bright state according to needs, thereby playing a privacy protection function. The starry sky display film cooperates with the lamp strip to produce light combinations of different colors and different patterns according to different needs, thereby creating a unique atmosphere effect.
[0010] Further, the first light-transmitting layer and / or the second light-transmitting layer is any one of glass, polycarbonate, polymethyl methacrylate and polyethylene terephthalate glycol.
[0011] Further, any one of the first adhesive layer, the second adhesive layer and the third adhesive layer is any one of ethylene-vinyl acetate copolymer, polyvinyl butyral and thermoplastic polyurethane.
[0012] Further, the thickness of the first adhesive layer, the second adhesive layer and the third adhesive layer ranges from 0.2 mm to 0.8 mm.
[0013] Further, the liquid crystal type in the liquid crystal light-adjusting film is guest-host liquid crystal.
[0014] Further, the light transmittance of the liquid crystal light-adjusting film ranges from 1% to 35%.
[0015] Further, the thickness of the starry sky display film ranges from 0.2 mm to 0.8 mm.
[0016] Further, the lamp strip has two strips, which are oppositely arranged on the front and back sides or the left and right sides of the starry sky display film.
[0017] Further, the lamp strip has four strips, which are arranged on the front, back, left and right sides of the starry sky display film.
[0018] Further, the thickness of the lamp strip is less than the sum of the thicknesses of the second adhesive layer, the starry sky display film and the third adhesive layer.
[0019] In another aspect of the present application, the above-mentioned adjustable light starry sky atmosphere display device can be used on the sunroof of a vehicle.
[0020] Another aspect of the present application, the above-mentioned light-adjustable starry sky atmosphere display device can be used on the curtain wall of a building.
[0021] Compared with the prior art, the present application has the following beneficial effects:
[0022] The light-adjustable starry sky atmosphere display device of the present application organically combines a liquid crystal light-adjustable film and a starry sky display film. The liquid crystal light-adjustable film can adjust its light transmittance as needed, switch between a dark state and a bright state, and play a privacy protection function. The starry sky display film cooperates with a light strip to produce different color and different pattern light combinations according to different needs, creating a unique atmosphere effect. The light-adjustable starry sky atmosphere display device of the present application is suitable for use as a vehicle sunroof and a building curtain wall. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 Fig. 1 is a structural schematic diagram of a light-adjustable starry sky atmosphere display device according to an embodiment of the present application;
[0024] Figure 2 Fig. 2 is a structural schematic diagram of a light-adjustable starry sky atmosphere display device according to another embodiment of the present application.
[0025] The reference signs are as follows:
[0026] 100 - light-adjustable starry sky atmosphere display device; 101 - first light-transmitting layer; 102 - first adhesive layer; 103 - liquid crystal light-adjustable film; 104 - second adhesive layer; 105 - starry sky display film; 106 - third adhesive layer; 107 - second light-transmitting layer; 108 - light strip. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0028] In the present specification, the light-adjustable function in the liquid crystal light-adjustable film refers to that the orientation state of the liquid crystal molecules in the liquid crystal light-adjustable film can change accordingly with the change of the electric field applied on the liquid crystal molecules, so as to change its light transmittance, i.e. light-adjustable. For different types of liquid crystals, the voltage range applied thereon to enable the light transmittance to change approximately linearly will be different. In addition, the light transmittance range of the liquid crystal light-adjustable film is designed to be between a relatively high transmittance state (bright state) and a relatively low transmittance state (dark state).
[0029] The structure of the liquid crystal dimming film generally comprises a pair of oppositely arranged substrate layers, conductive layers respectively coated on the inner surfaces of the upper and lower substrate layers, and liquid crystals arranged between the conductive layers. The other functional layers of the liquid crystal dimming film (such as alignment layer, ultraviolet / infrared protection layer, reflection enhancement layer, and sealing adhesive layer, etc.) and the selection of the materials of the layers are mature technologies in the art, and will not be described here.
[0030] In this specification, the starry night atmosphere display technology is a technology that creates a dreamy atmosphere by simulating the faint glow of stars in the night sky. In this application, the starry night display film is combined with the light strip. The starry night display film is a special display film that usually uses advanced optical technology and materials such as light guide plates and photosensitive ink to achieve uniform lighting and good visual effects. The light strip is an important part of the starry night display film, which activates the starry night display film by providing a light source to make it show the starry night effect. The light strip is usually an LED light strip that can be installed on the edge of the starry night display film. When the light strip is powered on, the light shines on the starry night pattern on the photosensitive ink or light guide plate, which is activated to show a dazzling starry night effect. Users can adjust the brightness, color and flicker mode of the light strip according to their needs to simulate different starry night scenes.
[0031] As described in the background, the car sunroof or building curtain wall no longer meets the single light-adjustable or starry night atmosphere display function. To solve this need, the present application proposes a light-adjustable starry night atmosphere display device that combines light-adjustable function and starry night atmosphere display function.
[0032] As shown in Figure 1 , the light-adjustable starry night atmosphere display device 100 of an embodiment of the present application comprises a first light-transmitting layer 101, a first adhesive layer 102, a liquid crystal dimming film 103, a second adhesive layer 104, a starry night display film 105, a third adhesive layer 106, and a second light-transmitting layer 107 arranged in sequence. The light-adjustable starry night atmosphere display device 100 further comprises a light strip 108, which can be arranged between the second adhesive layer 104 and the third adhesive layer 106, and can also be partially embedded in the second adhesive layer 104 and the third adhesive layer 106 at the same time (as shown in Figure 2 , the length direction of the light strip 108 is parallel to the plane of the first light-transmitting layer 101 or the second light-transmitting layer 107, and the light strip 108 is adjacent to the starry night display film 105.
[0033] The light-adjustable starry night atmosphere display device 100 of the embodiment of the present application organically combines the liquid crystal dimming film 103 and the starry night display film 105. The liquid crystal dimming film 103 can adjust its light transmittance and switch between dark state and bright state as needed. The starry night display film 105 cooperates with the light strip 108 to produce different color and pattern combinations of light according to different needs, creating a unique atmosphere effect.
[0034] In some embodiments of the present application, the first light-transmitting layer 101 and the second light-transmitting layer 107 are both transparent and provide support / restriction, and the materials of the two can be the same or different. Both can be commonly used glass, or other transparent and strong materials, such as polycarbonate (PC), polymethyl methacrylate (PMMA), polyethylene terephthalate (PET).
[0035] In some embodiments of the present application, the materials of the first adhesive layer 102, the second adhesive layer 104, and the third adhesive layer 106 can be the same or different, and the adhesive layers organically combine the functional layers, and any one of ethylene-vinyl acetate copolymer (EVA), polyvinyl butyral (PVB), and thermoplastic polyurethane (TPU) can be selected.
[0036] For the thickness of the first adhesive layer 102, the second adhesive layer 104, and the third adhesive layer 106, on the one hand, it cannot be too thin to meet the needs of bonding the upper and lower functional layers together, and on the other hand, it cannot be too thick to cause the overall display device to be too thick and heavy. Considering both aspects, the thickness of the three adhesive layers is limited to 0.2mm-0.8mm.
[0037] In some embodiments of the present application, the liquid crystal type in the liquid crystal dimming film 103 is guest-host liquid crystal. The guest-host liquid crystal includes nematic liquid crystal molecules as the host and dichroic dye molecules as the guest, and the dichroic dye molecules have anisotropic optical properties, i.e., they absorb different light waves in different directions, and at the same time, the dichroic dye molecules can change their orientation with the orientation of the liquid crystal molecules, so that the relative position of the incident light and the dye molecules changes, thereby realizing dynamic adjustment of light transmittance. Further, the overall light transmittance of the liquid crystal dimming film 103 can be limited to 1%-35%, and the contrast ratio is about 22; during use of the adjustable light starry sky atmosphere display device 100 of the present application, even in the daytime when the light is strong, the light transmittance of the liquid crystal dimming film 103 can be adjusted, and then the starry sky atmosphere pattern is displayed.
[0038] For example, the thickness of the liquid crystal dimming film 103 and the starry sky display film 105 is 0.2mm-0.8mm.
[0039] In some embodiments of this application, the light strip 108 is typically an LED light strip in the shape of a long strip. The long strip 108 is disposed between the second adhesive layer 104 and the third adhesive layer 106, and can be simultaneously adhered to the inner surfaces of both the second adhesive layer 104 and the third adhesive layer 106. The length direction of the long strip 108 is parallel to the plane of the first light-transmitting layer 101 or the second light-transmitting layer 107. It should be noted that the opposing first light-transmitting layer 101 and the second light-transmitting layer 107 are typically flat layers without curvature. However, to adapt to various application scenarios, the first light-transmitting layer 101 and the second light-transmitting layer 107 can have a certain curvature in the horizontal direction and / or perpendicular to the horizontal direction. In this case, the long strip 108 flexibly adheres to the inner surfaces of the second adhesive layer 104 and the third adhesive layer 106, approximately parallel to the plane of the first light-transmitting layer 101 or the second light-transmitting layer 107.
[0040] In addition, since the adhesive layer has some fluidity during the heating and curing process, the thickness of the light strip 108 can be greater than the thickness of the starry sky display film 105, but should still be less than the sum of the thicknesses of the second adhesive layer 104, the starry sky display film 105 and the third adhesive layer 106. With this setting, the upper and lower parts of the light strip 108 can be embedded in the second adhesive layer 104 and the third adhesive layer 106 at the same time, and then adjacent to the starry sky display film 105.
[0041] For example, there are two light strips 108, which are arranged opposite each other on the front and rear sides of the starry sky display film 105 (e.g. Figure 1 , Figure 2 (perpendicular to the front and back direction of the paper) or the left and right sides (such as...) Figure 1 , Figure 2 (As shown). Furthermore, there can be four light strips 108, which are arranged around the front, back, left, and right sides of the starry sky display film 105.
[0042] Alternatively, a sealing layer can be provided around the liquid crystal dimming film 103 and / or the star display film 105 (lamp strip 108).
[0043] In another aspect of this application, the aforementioned dimmable starry sky atmosphere display device 100 can be used as a sunroof of a vehicle, a side window of a vehicle, or a curtain wall of a building, etc.
[0044] The specific embodiments of this application will be described below with reference to the accompanying drawings; however, the scope of protection of this application is not limited to the embodiments disclosed below.
[0045] Example 1:
[0046] like Figure 1The dimmable starry sky atmosphere display device 100 shown includes a first light-transmitting layer 101, a first adhesive layer 102, a liquid crystal dimming film 103, a second adhesive layer 104, a starry sky display film 105, a third adhesive layer 106, and a second light-transmitting layer 107, which are stacked in sequence.
[0047] The first light-transmitting layer 101 and the second light-transmitting layer 107 are both made of glass, and the thickness of the two glass layers is set to 2.1 mm.
[0048] The first adhesive layer 102, the second adhesive layer 104, and the third adhesive layer 106 are made of EVA, and the thickness of the first adhesive layer 102 is 0.4 mm, the thickness of the second adhesive layer 104 is 0.4 mm, and the thickness of the third adhesive layer 106 is 0.4 mm.
[0049] The liquid crystal dimming film 103 contains a host-guest type liquid crystal with a transmittance of 1%-35%; the thickness of the star display film 105 is set to 0.4mm.
[0050] The dimmable starry sky ambient display device 100 also includes two light strips 108, which are disposed between the second adhesive layer 104 and the third adhesive layer 106, and are simultaneously bonded to the inner surfaces of the second adhesive layer 104 and the third adhesive layer 106; the length direction of the two light strips 108 ( Figure 1 The two light strips 108 are respectively arranged on the left and right sides of the starry sky display film 105 and adjacent to the starry sky display film 105. The thickness of the two light strips 108 is set to 0.4mm, which is the same as the thickness of the starry sky display film 105.
[0051] Example 2:
[0052] like Figure 1 The dimmable starry sky atmosphere display device 100 shown includes a first light-transmitting layer 101, a first adhesive layer 102, a liquid crystal dimming film 103, a second adhesive layer 104, a starry sky display film 105, a third adhesive layer 106, and a second light-transmitting layer 107, which are stacked sequentially. The dimmable starry sky atmosphere display device 100 also includes two light strips 108, which are disposed between the second adhesive layer 104 and the third adhesive layer 106 and are simultaneously bonded to the inner surfaces of the second adhesive layer 104 and the third adhesive layer 106.
[0053] The first light-transmitting layer 101 and the second light-transmitting layer 107 are both made of glass, and the thickness of the two glass layers is set to 2.1 mm.
[0054] Unlike Example 1, the first adhesive layer 102, the second adhesive layer 104, and the third adhesive layer 106 are made of PVB. Compared to EVA, PVB as an adhesive layer may be slightly inferior in terms of cost and processability, but it has better safety, weather resistance, and long-term stability.
[0055] The thickness of the first adhesive layer 102 is set to 0.4 mm, the thickness of the second adhesive layer 104 is set to 0.4 mm, and the thickness of the third adhesive layer 106 is set to 0.4 mm.
[0056] The liquid crystal dimming film 103 contains a host-guest type liquid crystal with a transmittance of 1%-35%; the thickness of the star display film 105 is set to 0.4mm.
[0057] The two light strips are 108 in length direction ( Figure 1 The two light strips 108 are respectively arranged on the left and right sides of the starry sky display film 105 and adjacent to the starry sky display film 105. The thickness of the two light strips 108 is set to 0.4mm, which is the same as the thickness of the starry sky display film 105.
[0058] Example 3:
[0059] like Figure 2 The dimmable starry sky atmosphere display device 100 shown includes a first light-transmitting layer 101, a first adhesive layer 102, a liquid crystal dimming film 103, a second adhesive layer 104, a starry sky display film 105, a third adhesive layer 106, and a second light-transmitting layer 107, which are stacked in sequence.
[0060] The first light-transmitting layer 101 and the second light-transmitting layer 107 are both made of glass, and the thickness of the two glass layers is set to 2.1 mm.
[0061] The first adhesive layer 102, the second adhesive layer 104, and the third adhesive layer 106 are made of EVA, and the thickness of the first adhesive layer 102 is 0.4 mm, the thickness of the second adhesive layer 104 is 0.4 mm, and the thickness of the third adhesive layer 106 is 0.4 mm.
[0062] The liquid crystal dimming film 103 contains a host-guest type liquid crystal with a transmittance of 1%-35%; the star display film 105 has a thickness of 0.4mm.
[0063] The dimmable starry sky atmosphere display device 100 also includes two light strips 108. Unlike embodiment 1, the two light strips 108 are further embedded in the second adhesive layer 104 and the third adhesive layer 106. The thickness of the light strips 108 is set to 0.6 mm.
[0064] The two light strips are 108 in length direction ( Figure 2The two lamp strips 108 are arranged on the left and right sides of the starry sky display film 105 and are adjacent to the starry sky display film 105.
[0065] In summary, the light-adjustable starry sky atmosphere display device 100 in the embodiment of the present application combines the liquid crystal light-adjustable film 103 and the starry sky display film 105 organically. The liquid crystal light-adjustable film 103 can adjust its light transmittance and switch between the dark state and the bright state according to the requirement. The starry sky display film 105 cooperates with the lamp strip 108 to produce different color and different pattern light combinations according to different requirements, and create a unique atmosphere effect.
[0066] In the present specification, an exemplary preparation method of the light-adjustable starry sky atmosphere display device 100 in the above embodiment is also given, which is specifically described as follows:
[0067] First, the liquid crystal light-adjustable film 103, the starry sky display film 105 and the lamp strip 108 are selected according to the design specifications. Then, the overall structure shown in FIG. 1 is assembled by stacking the adhesive layers and the functional layers. Figure 1 or Figure 2
[0068] The materials of the first adhesive layer 102, the second adhesive layer 104 and the third adhesive layer 106 are EVA. The structure assembled by stacking the above layers is placed in a vacuum heating device, and the pressure is vacuumized to 0.1 MPa. The heating process is as follows: the temperature is raised to 60℃ and stays for 20 minutes, then the temperature is continuously raised to 80℃ and stays for 60 minutes, then the temperature is continuously raised to 110℃ and stays for 60 minutes; finally, the temperature is cooled to 60℃, the normal pressure is restored, and the sample is taken out to obtain the light-adjustable starry sky atmosphere display device 100.
[0069] The light-adjustable starry sky atmosphere display device 100 in the embodiment of the present application can be used as a sunroof, a side window of a vehicle or a curtain wall of a building.
[0070] The above embodiments are only used to illustrate the specific embodiments of the present application. It should be noted that, for those skilled in the art, various modifications and changes can be made without departing from the concept of the present application, and these modifications and changes should also belong to the protection scope of the present application.
Claims
1. A tunable light starfield ambiance display device, characterized in that, The first light-transmitting layer, the first adhesive layer, the liquid crystal dimming film, the second adhesive layer, the starry sky display film, the third adhesive layer and the second light-transmitting layer are sequentially stacked. The lamp strip is arranged between the second adhesive layer and the third adhesive layer, or part of the lamp strip is embedded in the second adhesive layer and the third adhesive layer. The length direction of the lamp strip is parallel to the plane of the first light-transmitting layer or the second light-transmitting layer, and the lamp strip is adjacent to the starry sky display film.
2. The dimmable starry night ambiance display device according to claim 1, characterized in that, The first light-transmitting layer and / or the second light-transmitting layer is any one of glass, polycarbonate, polymethyl methacrylate and polyethylene terephthalate glycol.
3. The dimmable starfield ambiance display device of claim 1, wherein, Any one of the first adhesive layer, the second adhesive layer and the third adhesive layer is any one of ethylene-vinyl acetate copolymer, polyvinyl butyral and thermoplastic polyurethane.
4. The dimmable starfield ambiance display device of claim 1, wherein, The thickness of the first adhesive layer, the second adhesive layer and the third adhesive layer ranges from 0.2mm to 0.8mm.
5. The dimmable starfield ambiance display device of claim 1, wherein, The liquid crystal type in the liquid crystal dimming film is guest-host liquid crystal.
6. The dimmable starfield ambiance display device of claim 1, wherein, The light transmittance of the liquid crystal dimming film ranges from 1% to 35%.
7. The dimmable starfield ambiance display device of claim 1, wherein, The thickness of the starry sky display film ranges from 0.2mm to 0.8mm.
8. The dimmable starfield ambiance display device of claim 1, wherein, The lamp strip has two strips, and the two lamp strips are oppositely arranged on the front and back sides or the left and right sides of the starry sky display film.
9. The dimmable starfield ambiance display device of claim 1, wherein, The lamp strip has four strips, and the four lamp strips are arranged on the front, back, left and right sides of the starry sky display film.
10. The dimmable starfield ambiance display device of claim 1, wherein, The thickness of the lamp strip is less than the sum of the thicknesses of the second adhesive layer, the starry sky display film and the third adhesive layer.
11. A vehicle sunroof characterized by, The light-adjustable starry sky atmosphere display device according to any one of claims 1-10.
12. A building curtain wall, characterized by The light-adjustable starry sky atmosphere display device according to any one of claims 1-10.