TWM453720U - Plane structure of polymeric dispersed liquid crystal film - Google Patents

Abstract

A plane structure of polymeric dispersed liquid crystal (PDLC) film is provided, it includes two opposite transparent rigid substrates, and a PDLC light shuttle film arranged on the inner surface of one transparent rigid substrate. A sealed structure is formed on the periphery of the gap between two transparent rigid substrates to construct a sealed hollow space. This plane structure of PDLC film may change transparent state at user's own choice, and has the advantages of heat insulation and sound insulation.

Description

Planar structure of dimming liquid crystal film

The present invention relates to a planar structure of a dimming liquid crystal film, in particular to a planar structure in which a liquid crystal switch film is sandwiched between transparent rigid substrates and a dimming liquid crystal film having a hollow insulating design between two transparent rigid substrates.

Many of today's architectural curtain walls, flower houses, indoor partition walls or screen partitions are often designed with clear glass curtains for aesthetics and lighting, and for the purpose of making the transparent glass curtains concealed and insulated from sunlight. The curtains are decorated with colored glass or adhesive paper. However, the curtains are more space-consuming and need to be processed regularly. The colored glass and the heat-insulating paper cannot be used to change the light, and the heat-insulating paper is usually attached to the transparent. The outer surface of the glass curtain is prone to dirt and damage over time.

In recent years, a dimming glass has been developed which adjusts the transmittance of glass by changing the current by the characteristics of the liquid crystal material disposed therein. However, such a dimming glass cannot be insulated, and moisture is prevented. Insulation and sound insulation, and easy to affect the service life of the sun due to long-term exposure.

In order to solve the above problems, one of the objects of the present invention is to provide a planar structure of a dimming liquid crystal film which can be arbitrarily changed in transparency, and is protected by line of sight shielding. The advantage of privacy, wherein the liquid crystal switch film and the transparent rigid substrate or the transparent rigid substrate have a hollow insulation design with air spacers, so that the planar structure has good heat insulation effect, and in addition to high safety, it can also be indoors. Forming a temperature-balanced environment has the advantage of saving energy.

One of the purposes of the present invention is to provide a planar structure of a dimming liquid crystal film, which can be applied to building doors, windows, glass curtain walls and indoor compartments of the construction industry, and has the advantages of sound insulation, heat insulation and anti-fog effect.

In order to achieve the above object, the planar structure of the dimming liquid crystal film of the present embodiment includes: a transparent rigid substrate disposed at intervals, which is a first transparent rigid substrate and a second transparent rigid substrate, and the first transparent rigid substrate And the second transparent rigid substrate has a first inner surface and a second inner surface facing each other; a liquid crystal switch film is disposed on the first inner surface; and a first sealing structure is disposed on the first inner surface and the second The periphery between the inner surfaces forms a sealed first hollow space between the first transparent rigid substrate and the second transparent rigid substrate.

The planar structure of the dimming liquid crystal film of another embodiment of the present invention comprises two transparent rigid substrates disposed at intervals; a sealing structure is disposed on a periphery between the two transparent rigid substrates, and at least two opposite inner sides of the sealing structure form a groove And a liquid crystal switch film, wherein at least two opposite sides are disposed in the recesses, so that the liquid crystal switch film is disposed between the two transparent rigid substrates.

[This creation]

10, 30, 40‧‧‧ planar structure

12‧‧‧First transparent rigid substrate

14‧‧‧Second transparent rigid substrate

16‧‧‧First inner surface

18‧‧‧Second inner surface

20, 46‧‧‧LCD switch film

22‧‧‧First sealing structure

24‧‧‧First hollow space

32‧‧‧ Third transparent rigid substrate

34‧‧‧Second sealing structure

36‧‧‧Second hollow space

42, 42' ‧ ‧ transparent rigid substrate

44‧‧‧ Sealing structure

441‧‧‧ Groove

48, 48'‧‧‧ hollow space

FIG. 1 is a schematic view showing the planar structure of a dimming liquid crystal film according to a first embodiment of the present invention.

2 is a partial cross-sectional view showing the planar structure of the dimming liquid crystal film of the first embodiment of the present invention.

3 is a cross-sectional view showing the planar structure of the dimming liquid crystal film of the second embodiment of the present invention. intention.

4 is a cross-sectional view showing the planar structure of a dimming liquid crystal film according to a third embodiment of the present invention.

1 is a schematic view showing the planar structure of a dimming liquid crystal film according to a first embodiment of the present invention, and FIG. 2 is a partial cross-sectional view showing the planar structure of the dimming liquid crystal film of the first embodiment. As shown in FIG. 1 and FIG. 2, the planar structure 10 of a dimming liquid crystal film comprises two transparent rigid substrates, which are a first transparent rigid substrate 12 and a second transparent rigid substrate 14, respectively, a first transparent rigid substrate 12 and a first transparent rigid substrate 12 The two transparent rigid substrates 14 are parallel and spaced apart, and have a first inner surface 16 and a second inner surface 18 facing each other. In this embodiment, the first transparent rigid substrate 12 and the second transparent rigid substrate 14 are both The first and second transparent rigid substrates 12 and 14 may also have a curved surface structure; a liquid crystal switch film 20 is disposed on the first inner surface 16 of the first transparent rigid substrate 12, and is implemented in one embodiment. In the example, the liquid crystal switch film 20 is disposed on the first inner surface 16 by an adhesive (not shown); and a first sealing structure 22 is disposed between the first inner surface 16 and the second inner surface 18. The periphery of the first transparent rigid substrate 12 and the second transparent rigid substrate 14 form a sealed first hollow space 24 between the first transparent rigid substrate 12 and the second transparent rigid substrate 14 .

The liquid crystal switch film 20 is provided with a polymer dispersed liquid crystal (PDLC) between two parallel substrates (not shown) having a transparent conductive electrode. Under the low driving voltage of the transparent conductive electrode, the liquid crystal switch film 20 is The opaque high scattering state is converted into a clear transparent state, and in the case where the voltage (ie, the natural state) is removed, the liquid crystal switching film 20 is switched from a clear transparent state to an opaque high scattering state.

Following the above description, the materials of the first transparent rigid substrate 12 and the second transparent rigid substrate 14 are glass, polycarbonate (polycarbonate), plastic, laminated glass or glued plastic. The first sealing structure is polyvinyl butyral (PVB), Ethylene naphthalate (EN), polyethylene naphthalate (PEN), poly Ethyl Vintl Acetate (EVA), Polyurethane, thermoplastic polyurethane or gel, but the creation is not limited to the above. The first sealing structure 22 serves as an air spacer, and the first transparent rigid substrate 12 and the second transparent rigid substrate 14 have a hollow insulating design. In an embodiment, the first hollow space 24 can be filled with a gas such as dry air or an inert gas as needed.

Following the above description, the planar structure 10 of the dimming liquid crystal film of the present invention can be applied to the building window, the glass curtain wall, the flower house, the indoor compartment, the screen partition or the display window of the furniture industry in the construction industry. Due to the hollow insulation design of the air gap between the liquid crystal switch film 20 and the second transparent rigid substrate 14, the planar structure 10 can have heat insulation and sound insulation effects, and is an ideal energy-saving building material, wherein the first hollow space 24 When it is filled with dry air, it has an anti-fog effect, and if it is filled with an inert gas such as argon gas, it has a better heat insulating effect; the liquid crystal switch film 20 is interposed between the first and second transparent rigid substrates 12 and 14, The light transmittance of the entire planar structure 10 is adjusted by the change of the driving voltage to achieve the effect of randomly changing the transparency of the planar structure 10. For example, when the liquid crystal switching film 20 is in an opaque high scattering state, the planar structure 10 produces an effect such as frosted glass. When the liquid crystal switch film 20 is in a clear transparent state, the planar structure 10 is in a transparent state.

3 is a cross-sectional view showing the planar structure of a dimming liquid crystal film according to a second embodiment of the present invention. As shown in the figure, the difference from the first embodiment is that the planar structure 30 further includes a third transparent rigid substrate 32 spaced apart from the first transparent rigid substrate 12 and disposed on the first transparent rigid substrate 12 and the third transparent substrate. The circumference of the rigid substrate 32 is disposed on the second sealing structure 34 to form a sealed second hollow space 36 between the first transparent rigid substrate 12 and the third transparent rigid substrate 32. A gas such as dry air or an inert gas is charged as needed, and the gas filled in the second hollow space 36 may be different from or the same as the gas charged in the first hollow space 24. The materials of the third transparent rigid substrate 32 and the second sealing structure 34 are disclosed in the first transparent rigid substrate 12 and the first sealing structure 22 of the first embodiment, and are not described herein again. In the second embodiment, a third transparent rigid substrate 32 is added to increase the thickness of the planar structure, thereby enhancing the thermal and acoustic insulation effects of the planar structure. However, in other embodiments, more than one transparent rigid substrate may be added, and the transparent rigid substrates are insulated from each other.

4 is a plan view showing a planar structure of a dimming liquid crystal film according to a third embodiment of the present invention. Schematic diagram of the section. As shown, the planar structure 40 of the dimming liquid crystal film comprises: two spaced apart transparent rigid substrates 42, 42'; a sealing structure 44 is disposed on the periphery between the two transparent rigid substrates 42, 42', wherein the sealing structure 44 A recess 441 is formed on the opposite inner side surface, and a liquid crystal switch film 46 is disposed on the side of the recess 441 so that the liquid crystal switch film 46 is disposed between the two transparent rigid substrates 42 and 42'. The liquid crystal switch film 46 can be disposed in the recess 441 of the sealing structure 44 over the entire circumference, or the liquid crystal switch film 46 can be disposed in the recess 441 of the sealing structure 44 only on opposite sides. In the third embodiment, the liquid crystal switch film 46 is interposed between the second transparent rigid substrates 42 and 42', and the light transmittance of the entire planar structure 40 can be adjusted by the change of the driving voltage to achieve the random conversion planar structure 40. The effect of transparency; and a hollow space 48, 48' is formed between the liquid crystal switch film 46 and the two transparent rigid substrates 42, 42', respectively, which can be filled with different or the same air, thereby achieving better heat insulation, sound insulation and prevention. Fog effect.

According to the above, the planar structure of the dimming liquid crystal film of the present invention can arbitrarily change the transparency to have the advantages of line-of-sight shielding and privacy protection, wherein the hollow insulating film between the liquid crystal switch film and the transparent rigid substrate or the two transparent rigid substrates is designed to be flat. The structure has good heat insulation effect. In addition to high safety, it can also form a temperature-balance environment in the room, and effectively reduce the expenditure on air conditioning, which has the advantage of saving energy. Furthermore, since the hollow space is filled with dry air, the anti-fog effect is good, and it can be applied to the exterior wall of a building having a large indoor and outdoor temperature difference.

The embodiments described above are only for explaining the technical idea and characteristics of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement them according to the scope of the patent. That is, the equivalent changes or modifications made by the people in accordance with the spirit revealed by this creation should still be covered by the scope of the patent of this creation.

10‧‧‧planar structure

12‧‧‧First transparent rigid substrate

14‧‧‧Second transparent rigid substrate

16‧‧‧First inner surface

18‧‧‧Second inner surface

20‧‧‧LCD switch film

22‧‧‧First sealing structure

24‧‧‧First hollow space

Claims (16)

The planar structure of the dimming liquid crystal film comprises: a transparent rigid substrate disposed at a distance, which is a first transparent rigid substrate and a second transparent rigid substrate, wherein the first transparent rigid substrate and the second transparent rigid substrate respectively a first inner surface and a second inner surface facing each other; a liquid crystal switch film disposed on the first inner surface; and a first sealing structure disposed on the first inner surface and the second inner surface A circumferential gap between the first transparent rigid substrate and the second transparent rigid substrate forms a sealed first hollow space. The planar structure of the dimming liquid crystal film of claim 1, wherein the first hollow space is filled with a gas. The planar structure of the dimming liquid crystal film according to claim 1, wherein the material of the two transparent rigid substrates is glass, polycarbonate (polycarbonate), plastic, laminated glass or glued plastic. The planar structure of the dimming liquid crystal film according to claim 1, wherein the first sealing structure is polyvinyl butyral (PVB) or Ethylene naphthalate (EN). , Polyethylenenapthalate (PEN), Ethyl Vinyl Acetate (EVA), Polyurethane, Thermoplastic Polyurethane or Adhesive (gel) . The planar structure of the dimming liquid crystal film according to claim 1, wherein the liquid crystal switching film is provided with a polymer dispersed liquid crystal (PDLC) between two substrates having transparent conductive electrodes. The planar structure of the dimming liquid crystal film of claim 1, wherein the first sealing structure is an air spacer. The planar structure of the dimming liquid crystal film of claim 1, wherein the liquid crystal switching film is disposed on the first inner surface with an adhesive. The planar structure of the dimming liquid crystal film of claim 1, further comprising: a third transparent rigid substrate spaced apart from the first transparent rigid substrate; and a second sealing structure disposed on the first transparent rigid substrate And a peripheral edge between the third transparent rigid substrate to form a sealed second hollow space between the first transparent rigid substrate and the third transparent rigid substrate. The planar structure of the dimming liquid crystal film of claim 8, wherein the second sealing structure is an air spacer. A planar structure of a dimming liquid crystal film comprising: a transparent rigid substrate disposed at two intervals; a sealing structure disposed on a periphery between the two transparent rigid substrates, wherein at least two opposite inner sides of the sealing structure form a groove; A liquid crystal switch film is disposed in the recess at least two opposite sides thereof, so that the liquid crystal switch film is disposed between the two transparent rigid substrates. The planar structure of the dimming liquid crystal film of claim 10, wherein the two transparent rigid substrates and the liquid crystal switch film form a sealed hollow space. The planar structure of the dimming liquid crystal film of claim 11, wherein the hollow space is filled with a gas. The planar structure of the dimming liquid crystal film according to claim 10, wherein the material of the two transparent rigid substrates is glass, polycarbonate (polycarbonate), plastic, laminated glass or glued plastic. The planar structure of the dimming liquid crystal film of claim 10, wherein the sealing structure is an air spacer. The planar structure of the dimming liquid crystal film according to claim 10, wherein the sealing structure is polyvinyl butyral (PVB), Ethylene naphthalate (EN), poly Naphthalene naphthalate Polyethylenenapthalate, PEN), Ethyl Vinyl Acetate (EVA), Polyurethane, Thermoplastic Polyurethane or Gel. The planar structure of the dimming liquid crystal film according to claim 10, wherein the liquid crystal switching film is provided with a polymer dispersed liquid crystal (PDLC) between two substrates having transparent conductive electrodes.