KR102111745B1 - Smart curtain capable of transmission and luminescence concurrency control and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a liquid crystal smart curtain and a method for manufacturing the same, and more specifically, unlike a conventional smart window that can only implement a transparent and opaque mode, it controls the transmittance of the window during the day to perform the function of the curtain, and at night The present invention relates to a liquid crystal smart curtain capable of simultaneously controlling transmittance and emitting light capable of performing a function of a light source by controlling a light emission level emitting light and a method for manufacturing the same.

Description

A smart curtain capable of transmission and luminescence concurrency control and manufacturing method thereof

The present invention relates to a liquid crystal smart curtain and a method for manufacturing the same, and more specifically, unlike a conventional smart window that can only implement a transparent and opaque mode, it controls the transmittance of the window during the day to perform the function of the curtain, and at night The present invention relates to a liquid crystal smart curtain capable of simultaneously controlling transmittance and emitting light capable of performing a function of a light source by controlling a light emission level emitting light and a method for manufacturing the same.

In general, a smart window is changed to a transparent, opaque or translucent state by transmitting or blocking light according to the application of power, so it is called a variable transmittance glass or smart glass.

In addition, these smart windows usually use a TN mode liquid crystal (Twist Nematic mode liquid crystal), and have a structure in which a TN mode alignment layer is coated between a pair of glass substrates and Nematic liquid crystal is injected into the yarn.

In addition, the TN mode transmittance-adjustable smart window uses a normally-white mode. In this normally-white mode transmittance-adjustable smart window, when voltage is applied, polarized light from the top plate passes through the liquid crystal. While being distorted, it becomes transparent by passing light in conformity with the direction of the polarizing plate on the lower plate. If no voltage is applied, it becomes opaque by preventing the polarized light from twisting when passing through the liquid crystal. Thus, by controlling the transmittance of light using a polarizing plate and a liquid crystal, an opaque or translucent state is performed to perform a shading function.

On the other hand, in the conventional smart window, a spacer for maintaining a gap is essentially used to secure a space for injecting liquid crystal between glass substrates.

As described above, a conventional smart window using a TN mode liquid crystal does not have a light emitting function because it uses silica and a polymer as a spacer, and has a limitation of simply performing a function of transmitting or blocking light.

The present invention has been devised to solve the above-described problems, and an object of the present invention is to provide a liquid crystal smart curtain capable of simultaneously performing a function of a light source in addition to a curtain function and simultaneously controlling transmittance and emission level.

In addition, an object of the present invention is to provide a liquid crystal smart curtain without power consumption when made transparent for light during the daytime.

In addition, another object of the present invention is to provide a liquid crystal smart curtain that does not require a separate spacer for the formation of the liquid crystal layer.

The present invention to achieve the above object is a lower polarizing plate; A lower substrate provided on the lower polarizing plate; A lower transparent electrode provided on the lower substrate; A lower alignment layer provided on the lower transparent electrode; A liquid crystal layer provided on the lower transparent electrode; An upper alignment layer provided on the liquid crystal layer and having an alignment direction perpendicular to the lower alignment layer; An upper transparent electrode provided on the upper alignment layer; An upper substrate provided on the upper transparent electrode; And an upper polarizing plate provided on the upper substrate and having a polarization direction perpendicular to a polarization direction of the lower polarizing plate, wherein the liquid crystal layer transmits light when a voltage is not applied and transmits light when a voltage is applied. A TN-mode liquid crystal that performs a function of a curtain by blocking and a spacer function that maintains a distance between the lower alignment layer and the upper alignment layer and a light source that emits light when a voltage is applied to perform the function of a light source It provides a liquid crystal smart curtain, characterized in that it comprises an inorganic phosphor.

In a preferred embodiment, the outer diameter of the inorganic phosphor is the same as the spacing between the alignment layers.

In a preferred embodiment, the outer diameter of the inorganic phosphor is a specific value between 15 μm and 25 μm.

In a preferred embodiment, the inorganic phosphor has a specific pattern such as numbers, letters, figures or pictures on a plane and may be located on the liquid crystal layer.

In a preferred embodiment, when the area of the pattern is 30% or less of the area of each alignment layer, a spacer including the inorganic phosphor or silica ball or urethane ball is provided in a portion other than the pattern.

In a preferred embodiment, the upper substrate and the lower substrate are each made of a rigid substrate such as SiO ₂ based silica, quartz, or a flexible substrate such as PI or flexible glass.

In a preferred embodiment, the upper transparent electrode and the lower transparent electrode are transparent electrodes having an Oxide/Metal/Oxide (OMO) structure such as ITO, TiInZnO, ZnInSnO, MoInZnO, or ITO/Ag/ITO, respectively.

In a preferred embodiment, the transmittance of the upper transparent electrode and the lower transparent electrode is at least 80%.

In a preferred embodiment, the inorganic light-emitting body is made of ZnS, ZnSe, SrS or CaS doped with Cl, Cu, Mn, Al, Tb, Sm, Tm, Pr, Eu or Ce.

In a preferred embodiment, a voltage of 0 to 7V is varied and applied between the lower transparent electrode and the upper transparent electrode during the day to control the transmittance of incident light, and at night, between the lower transparent electrode and the upper transparent electrode The voltage of 60 to 120V is varied and applied to control the brightness of light emitted.

In addition, the present invention is a method for manufacturing a liquid crystal smart curtain for manufacturing the liquid crystal smart curtain, after depositing a transparent electrode on the upper substrate and the lower substrate, and spin-curing an alignment layer raw material to harden the coating layer in one direction. (rubbing) to orientation; Coating the inorganic phosphor on the upper alignment layer or the lower alignment layer; Positioning the upper substrate and the lower substrate such that the upper alignment layer and the lower alignment layer are spaced apart from each other, and positioned so that the alignment directions are perpendicular to each other; Sealing an edge between the upper alignment layer and the lower alignment layer using a sealing solution; Injecting the TN mode liquid crystal between the upper alignment layer and the lower alignment layer; And attaching the lower polarizing plate to the lower surface of the lower substrate and attaching the upper polarizing plate to the upper surface of the upper substrate.

In a preferred embodiment, the application of the inorganic phosphor is performed by dispersing the inorganic phosphor in a solvent containing ethanol, methanol, isopropyl alcohol or distilled water, applying the mixed solution in which the inorganic phosphor is dispersed, and then removing the solvent.

In a preferred embodiment, the inorganic phosphor is dispersed in a specific weight between 1 and 30 wt% based on the weight of the solvent.

In a preferred embodiment, the mixed solution is applied 3 to 10 times with an injection amount of 0.1 mL per unit area (1×1 cm).

In a preferred embodiment, prior to the step of applying the inorganic phosphor, further comprising the step of placing a shadow mask (shadow mask) on the upper alignment layer or the lower alignment layer, the inorganic phosphor is characterized by the shadow mask It is applied in a pattern.

The present invention has the following excellent effects.

First, according to the liquid crystal smart curtain of the present invention, the applied voltage can be controlled to simultaneously control the transmittance and the degree of light emission, so it functions as a curtain that transmits or blocks light during the day and a light source that emits light at night. There is an advantage to do.

In addition, according to the liquid crystal smart curtain of the present invention, since an inorganic phosphor for a light emitting function is used as a spacer without a separate spacer for forming a liquid crystal layer, there is an advantage in that it is possible to manufacture without an increase in labor compared to a conventional smart window.

In addition, according to the liquid crystal smart curtain of the present invention, there is an advantage of using a liquid crystal in a normally white mode to maintain a transparent state when no power is applied, thereby reducing power consumption for daylighting.

1 is a view showing a liquid crystal smart curtain according to an embodiment of the present invention,
2 is a view showing the structure of a liquid crystal smart curtain according to an embodiment of the present invention,
3 is a view for explaining that the inorganic phosphor of the liquid crystal smart curtain according to an embodiment of the present invention has a pattern and is applied;
Figure 4 is a flow chart for explaining the manufacturing method of the liquid crystal smart curtain according to an embodiment of the present invention,
Figure 5 is a flow chart for explaining evenly spraying the inorganic phosphor in the manufacturing method of a liquid crystal smart curtain according to an embodiment of the present invention,
Figure 6 is a flow chart for explaining the spraying of the inorganic phosphor in a predetermined pattern in the method of manufacturing a liquid crystal smart curtain according to an embodiment of the present invention,
FIG. 7 is a view showing a real thing of a liquid crystal smart curtain in an embodiment of the present invention, and showing a change in transmittance and luminescence according to a voltage change when an inorganic phosphor compared to a solvent is included in 1 wt%,
8 is a view showing the real thing of a liquid crystal smart curtain according to an embodiment of the present invention, and when an inorganic phosphor compared to a solvent is included in 5 wt%, a view showing a change in transmittance and emission according to a voltage change,
FIG. 9 is a view showing a real thing of a liquid crystal smart curtain in an embodiment of the present invention, and showing a change in transmittance and luminescence according to a voltage change when an inorganic phosphor compared to a solvent is included in 10 wt%,
10 is a view showing the real thing of the liquid crystal smart curtain according to an embodiment of the present invention, when the inorganic phosphor compared to the solvent contained 15wt%, a diagram showing the transmittance and luminescence change according to the voltage change,
FIG. 11 is a view showing a real thing of a liquid crystal smart curtain in an embodiment of the present invention and showing a change in transmittance and luminescence according to a voltage change when an inorganic phosphor compared to a solvent is included in 20 wt%,
FIG. 12 is a view showing a real thing of a liquid crystal smart curtain in an embodiment of the present invention and showing a change in transmittance and luminescence according to a voltage change when an inorganic phosphor compared to a solvent is included in 30 wt%,
13 is a view showing the real thing of the liquid crystal smart curtain in one embodiment of the present invention, when the inorganic fluorescent substance is contained in 20wt% and applied in a predetermined pattern, it shows the transmittance and light emission change according to the voltage change,
14 is a graph for explaining the transmittance of a liquid crystal smart curtain according to an embodiment of the present invention, and showing a transmittance according to an inclusion ratio of an inorganic phosphor when no voltage is applied during the day,
15 is a graph for explaining the transmittance of a liquid crystal smart curtain according to an embodiment of the present invention, and showing a transmittance according to an inclusion ratio of an inorganic phosphor when a voltage is applied during the day;
FIG. 16 is a graph for explaining the transmittance of a liquid crystal smart curtain in an embodiment of the present invention, and is a diagram showing brightness according to an inclusion ratio of an inorganic phosphor when a voltage is applied at night.

The terminology used in the present invention is selected from the general terms that are currently widely used, but in certain cases, there are also terms that are arbitrarily selected by the applicant. In this case, the meanings described or used in the detailed description of the invention are not considered as simple names. Therefore, the meaning should be grasped.

Hereinafter, the technical configuration of the present invention will be described in detail with reference to preferred embodiments illustrated in the accompanying drawings.

However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Throughout the specification, the same reference numerals denote the same components.

1 shows a liquid crystal smart curtain according to an embodiment of the present invention. Referring to FIG. 1, the liquid crystal smart curtain 100 according to an embodiment of the present invention is installed in a window form on a window 10, and is authorized Depending on the voltage applied, the transmittance is varied in the daytime to perform the function of the curtain, and the degree of light emission in the nighttime is varied to perform the function of illumination.

That is, as compared with the conventional smart window, a light emitting mode is provided as well as a transparent and opaque mode, and there is a difference in controlling a transmittance and a light emission degree by varying an additionally applied voltage.

2 is a view for explaining the structure of the liquid crystal smart curtain 100. Referring to FIG. 2, the liquid crystal smart curtain 100 includes a lower polarizing plate 110, a lower substrate 120, and a lower transparent electrode 130. It includes a lower alignment layer 140, a liquid crystal layer 150, an upper alignment layer 160, an upper transparent electrode 170, an upper substrate 180, and an upper polarizing plate 190.

The lower polarizing plate 110 is a plate capable of transmitting or blocking polarized light.

The lower substrate 120 is provided on the lower polarizing plate 110 to support a shape, glass (silica), quartz (quartz), PI (polyimide), PET (Poly Ethylene Terephthalate) or PES (Poly) Ehter Sulfone), and in the present invention, glass (silica) was used.

The lower transparent electrode 130 is provided on the lower substrate 120 and is a transparent electrode that can receive external power.

In addition, the lower transparent electrode 130 may be a transparent electrode having an Oxide/Metal/Oxide (OMO) structure such as ITO, TiInZnO, ZnInSnO, MoInZnO, or ITO/Ag/ITO.

In addition, the lower transparent electrode 130 should have a transmittance of at least 80% or more for mining.

The lower alignment layer 140 is provided on the lower transparent electrode 130 and causes the liquid crystal to be described below to be oriented in a predetermined direction.

The liquid crystal layer 150 is provided on the lower alignment layer 140, and includes an inorganic phosphor 151 and a TN mode liquid crystal (152), and the inorganic phosphor 151 is the lower alignment layer While maintaining a gap between 140 and the upper alignment layer 160 to be described below, light is emitted when voltage is applied, and the TN mode liquid crystal 152 functions to block light when voltage is applied.

In addition, the inorganic fluorescent substance 151 is a spherical inorganic fluorescent substance, and the outer diameter R of the inorganic fluorescent substance 151 is the same as the spacing H between the lower alignment layer 140 and the upper alignment layer 160.

That is, the inorganic phosphor 151 has a lower end contacting the lower alignment layer 140 and an upper end contacting the upper alignment layer 160 to support the lower alignment layer 140 and the upper alignment layer 160 spaced apart from each other. Plays a role.

This replaces the role of a silica ball or a urethane ball as a spacer in a smart window using a conventional liquid crystal.

That is, in the liquid crystal smart curtain 100 of the present invention, a separate spacer is not provided and the inorganic phosphor 151 for light emission serves as a spacer as compared to the conventional liquid crystal smart window.

However, when the inorganic phosphor 151 is applied in an area of 30% or less of the area of the lower alignment layer 140, it may be difficult to maintain a gap between the lower alignment layer 140 and the upper alignment layer 160. Urethane balls can be further applied.

In addition, the inorganic phosphor 151 has a specific value between 15 μm and 25 μm when considering the luminous efficiency and driving voltage of the outer diameter, and Cl, Cu in the base material powder of ZnS, ZnSe, SrS or CaS. , Mn, Al, Tb, Sm, Tm, Pr, Eu or Ce doped.

In addition, the inorganic phosphor 151 may be evenly sprayed on the lower alignment layer 140 to emit light from the front, but may be coated with a predetermined pattern P as shown in FIG. 3 to emit pattern light. have.

Further, the pattern P may be a number, a letter, a figure, or a picture.

The upper alignment layer 160 is provided on the liquid crystal layer 150 and allows the TN mode liquid crystal 152 to be oriented in a predetermined direction.

In addition, the upper alignment layer 160 has an alignment direction perpendicular to the lower alignment layer 140.

The upper transparent electrode 170 is provided on the upper alignment layer 160 and is a transparent electrode capable of receiving external power with the lower transparent electrode 130.

In addition, the upper transparent electrode 170 may be ITO, TiInZnO, ZnInSnO, MoInZnO or OMO, and transmittance is at least 80% or higher.

The upper substrate 180 is provided on the upper transparent electrode 170 serves to support the shape, and may be glass, PET (Poly Ethylene Terephthalate) or PES (Poly Ehter Sulfone), and in the present invention, glass Was used.

The upper polarizer 190 is provided on the upper substrate 180 and has a polarization direction perpendicular to the polarization direction of the lower polarizer 110.

4 is a flow chart for explaining the manufacturing method of the liquid crystal smart curtain 100 according to an embodiment of the present invention.

Referring to FIG. 4, in the manufacturing method of the liquid crystal smart curtain 100, first, the upper substrate 180 and the lower substrate 120 are prepared (S1000).

Next, the upper transparent electrode 170 is deposited on the upper substrate 180, and the lower transparent electrode 120 is deposited on the lower substrate 120 (S2000 ).

Next, an alignment layer raw material is spin-coated on the upper transparent electrode 170 and the lower transparent electrode 120 (S3000).

In addition, the alignment layer raw material may be PI (polyimide).

In addition, the spin coating is performed using a spin coater, and the spin coater is coated in a first stage coating with a rotation speed of 100 rpm, an acceleration time of 5 sec, a duration of 5 sec, a rotation speed of 3000 rpm, an acceleration time of 5 sec, and a duration of 25 sec. The two-step coating, the rotation speed of 100 rpm, the acceleration time 5sec, the duration of 5sec coating the three-step coating proceeds sequentially.

In addition, after coating, coating is completed by soft baking using an oven and hard baking using a hot plate.

In addition, soft baking is performed for 10 minutes at a temperature of 80 degrees, and hard baking is performed for 1 hour at a temperature of 230 degrees.

Next, the PI coating layer is rubbed so that the liquid crystal can be aligned using a rubbing cloth (S4000).

In addition, rubbing is performed by mounting a rubbing cloth on a roller and rotating at a constant speed to generate scratches. The rotating speed of the rubbing cloth is preferably 300 rpm, and the movement per hour is preferably 80 mm/sec.

Thus, the formation of the alignment layers 140 and 160 on the upper transparent electrode 170 and the lower transparent electrode 130 is completed.

Next, an inorganic phosphor 151 is coated on the lower alignment layer 140.

In detail, the inorganic phosphor 151 is dispersed in a solvent that does not react with the polyimide alignment layer and the inorganic phosphor, such as ethanol, methanol, isopropyl alcohol, or distilled water, to apply a mixed solution in which the inorganic phosphor 151 is dispersed.

In addition, the mixed solution may be evenly sprayed on the entire surface of the lower alignment layer 140 as illustrated in FIG. 5, and a shadow mask (where a predetermined pattern is formed on the lower alignment layer 140 as illustrated in FIG. 6) m) can be positioned and applied according to the pattern of the shadow mask (m).

In addition, the inorganic phosphor 151 may be dispersed in a specific weight between 1 and 30 wt% based on the weight of the solvent.

In addition, the mixed solution is preferably injected at an injection amount of 0.1 mL per unit area (1×1 cm) of the lower alignment layer 140 upon one injection, and the weight ratio of the inorganic phosphor dispersed in the solvent can be adjusted for brightness control. have.

In addition, by controlling the number of injections 3 to 10 times, it is possible to adjust the light emission intensity and transmittance according to the application.

It is difficult to uniformly maintain the gap between the lower alignment layer 140 and the upper alignment layer 160 when the mixed solution is applied less than 3 times, and when applied more than 10 times, the transmittance is lowered, making it difficult to mine. This is because it cannot function as a window.

On the other hand, if the area of the pattern is 30% or less in the area of the lower alignment layer 140, uniform gap control between the lower alignment layer 140 and the upper alignment layer 160 may be difficult. A small amount of spacers such as silica balls and urethane balls may be additionally applied.

Next, the solvent is removed by a drying method or the like and only the inorganic phosphor 151 is coated on the lower alignment layer 140.

Next, the lower substrate 120 and the upper substrate 180 are positioned such that the upper alignment layer 160 and the lower alignment layer 140 face each other, but are positioned so that the alignment directions are perpendicular to each other (S6000).

At this time, the upper alignment layer 160 and the lower alignment layer 140 are spaced apart from each other by the inorganic phosphor 151.

Next, the edges of the upper alignment layer 160 and the lower alignment layer 140 are sealed using a UV sealing solution, but sealed except for the liquid crystal injection hole (S7000).

Next, it is left for about 6 minutes to cure the UV sealing solution.

Next, by injecting the TN mode liquid crystal 152 through the liquid crystal injection hole, a liquid crystal is filled between the upper alignment layer 160 and the lower alignment layer 140 (S8000).

Next, the liquid crystal injection hole is sealed using a UV sealing solution.

Next, the lower polarizing plate 110 is attached to the lower portion of the lower substrate 120 so that the polarization directions are perpendicular to each other, and the upper polarizing plate 190 is attached to the upper portion of the upper substrate 180 (S9000).

7 to 12 show the real thing of the liquid crystal smart curtain 100 manufactured according to an embodiment of the present invention, and FIG. 7 shows a transmittance according to a voltage change when the inorganic phosphor 151 is compared to a solvent at 1 wt% And Figures showing the change in luminescence, Figure 8 is a diagram showing the transmittance and luminescence change according to the voltage change when the inorganic fluorescent substance 151 is compared to the solvent 5wt%, Figure 9 is 10wt% of the inorganic fluorescent substance 151 compared to the solvent When included as, a diagram showing the change in transmittance and luminescence according to the voltage change, Figure 10 is a diagram showing the transmittance and luminescence change according to the voltage change, when the inorganic phosphor 151 compared to the solvent is included in 15wt%, Figure 11 When the inorganic fluorescent substance 151 compared to the solvent is included in 20wt%, the diagram showing the transmittance and luminescence change according to the voltage change, Figure 12 shows the transmittance according to the voltage change when the inorganic fluorescent substance 151 compared to the solvent is included in the 30wt% And a luminescence change.

As can be seen from the drawings, when no voltage was applied during the daytime (0Vac), light could be used as a window by transmitting light well, and when a voltage of 60Vac was applied, the function of the curtain could be performed by not transmitting light. Can be seen.

In the actual daytime, if the voltage is applied to 7Vac, it can function as a curtain, so the user can adjust the transmittance by varying the voltage from 0Vac to 7Vac.

In addition, at night time, the light emission starts at a voltage of 60 Vac or more, and the supply of the voltage to 120 Vac is controlled and the brightness of the light source can be controlled.

In addition, FIG. 13 is a view showing a change in transmittance and luminescence according to a voltage change when the inorganic phosphor 151 compared to the solvent of the present invention is included in 20 wt% and applied in a predetermined pattern. Referring to FIG. 13, it can be seen that light is possible during the daytime when no power is supplied, and light emission is performed according to a pattern formed by supplying power at night.

14 is a graph for explaining the transmittance of a liquid crystal smart curtain according to an embodiment of the present invention, and shows a transmittance according to an inclusion ratio of an inorganic phosphor when a voltage is not applied during the daytime. As shown in FIG. 14, a solvent The higher the inclusion ratio (%) of the contrasting inorganic phosphor 151, the lower the transmittance was, but it was confirmed that there was no problem in mining by showing a transmittance of about 20% or more.

15 is a graph for explaining the transmittance of the liquid crystal smart curtain according to an embodiment of the present invention, and when a voltage (60 Vac) is applied during the daytime, the transmittance according to the inclusion ratio of the inorganic phosphor 151 is shown. It was confirmed that, regardless of the inclusion ratio of (151), the transmittance in the visible light region was measured to be almost 0%, so that the function of the curtain could be performed.

FIG. 16 is a graph for explaining the transmittance of a liquid crystal smart curtain in an embodiment of the present invention, and when a voltage is applied at night, the brightness according to the inclusion ratio of the inorganic phosphor is changed, and the voltage is varied from 60 Vac to 120 Vac. It is a graph measuring brightness.

As can be seen in Figure 16, the higher the inclusion ratio of the inorganic phosphor 151, the brighter the brightness was measured. As the brightness increased proportionally with the input voltage, it was confirmed that it can be sufficiently utilized as lighting.

As described above, the present invention has been illustrated and described with reference to preferred embodiments, but is not limited to the above-described embodiments and is within the scope of the present invention without departing from the spirit of the present invention. By doing so, various changes and modifications will be possible.

100: LCD smart curtain 110: lower polarizer
120: lower substrate 130: lower transparent electrode
140: lower alignment layer 150: liquid crystal layer
151: inorganic fluorescent agent 152: TN mode liquid crystal
160: upper alignment layer 170: upper transparent electrode
180: upper transparent substrate 190: upper polarizing plate

Claims (15)

Lower polarizer; A lower substrate provided on the lower polarizing plate; A lower transparent electrode provided on the lower substrate; A lower alignment layer provided on the lower transparent electrode; A liquid crystal layer provided on the lower transparent electrode; An upper alignment layer provided on the liquid crystal layer and having an alignment direction perpendicular to the lower alignment layer; An upper transparent electrode provided on the upper alignment layer; An upper substrate provided on the upper transparent electrode; And an upper polarizer provided on the upper substrate and having a polarization direction perpendicular to the polarization direction of the lower polarizer.
The liquid crystal layer transmits light when a voltage is not applied, and blocks a light when a voltage is applied to perform a curtain function, and thus a distance between a TN mode liquid crystal and a lower alignment layer and an upper alignment layer. A method of manufacturing a liquid crystal smart curtain including a spherical inorganic phosphor that performs a function of a light source by emitting light when a spacer function and voltage are applied to maintain
Depositing a transparent electrode on the upper substrate and the lower substrate, spin-coating an alignment layer raw material, and then hardening the coating layer in one direction to align;
Coating the inorganic phosphor on the upper alignment layer or the lower alignment layer;
Positioning the upper substrate and the lower substrate such that the upper alignment layer and the lower alignment layer are spaced apart from each other, and positioned such that the alignment directions are perpendicular to each other;
Sealing an edge between the upper alignment layer and the lower alignment layer using a sealing solution;
Injecting the TN mode liquid crystal between the upper alignment layer and the lower alignment layer; And
Includes; attaching the lower polarizing plate to the lower surface of the lower substrate, and attaching the upper polarizing plate to the upper surface of the upper substrate;
The inorganic fluorescent substance is coated by dispersing the inorganic fluorescent substance in a solvent containing ethanol, methanol, isopropyl alcohol or distilled water, and applying the mixed liquid in which the inorganic fluorescent substance is dispersed, followed by removing the solvent. Manufacturing method.
According to claim 1,
The outer diameter of the inorganic phosphor is a liquid crystal smart curtain manufacturing method, characterized in that the same as the spacing between the alignment layers.
According to claim 2,
A method of manufacturing a liquid crystal smart curtain, characterized in that the outer diameter of the inorganic phosphor is a specific value between 15 μm and 25 μm.
According to claim 2,
The inorganic phosphor has a specific pattern, such as a number, letter, figure or picture on a flat surface and is located on the liquid crystal layer.
The method of claim 4,
When the area of the pattern is 30% or less of the area of each alignment layer, a method of manufacturing a liquid crystal smart curtain, characterized in that a spacer including the inorganic phosphor or silica ball or urethane ball is provided in a portion other than the pattern.
According to claim 1,
The upper substrate and the lower substrate are each made of a rigid substrate such as SiO2 based silica, quartz, or a flexible substrate such as PI or flexible glass.
According to claim 1,
The upper transparent electrode and the lower transparent electrode, respectively, ITO, TiInZnO, ZnInSnO, MoInZnO, or ITO/Ag/ITO, such as a transparent electrode having an Oxide/Metal/Oxide (OMO) structure.
The method of claim 7,
A method of manufacturing a liquid crystal smart curtain, characterized in that the transmittance of the upper transparent electrode and the lower transparent electrode is at least 80%.
According to claim 1,
The inorganic phosphor is ZnS, ZnSe, SrS or CaS base material powder Cl, Cu, Mn, Al, Tb, Sm, Tm, Pr, Eu or Ce doped liquid crystal smart curtain manufacturing method characterized in that doped.
According to claim 1,
In the daytime, a voltage of 0 to 7V is varied and applied between the lower transparent electrode and the upper transparent electrode to adjust the transmittance of incident light,
A method of manufacturing a liquid crystal smart curtain characterized in that, at night, a voltage of 60 to 120V is varied and applied between the lower transparent electrode and the upper transparent electrode to adjust the brightness of light emitted.
delete delete According to claim 1,
The inorganic phosphor is a liquid crystal smart curtain manufacturing method, characterized in that dispersed in a specific weight between 1 to 30wt% of the weight of the solvent.
According to claim 1,
The mixed solution is a liquid crystal smart curtain manufacturing method characterized in that it is applied 3 to 10 times with an injection amount of 0.1 mL per unit area (1×1 cm).
According to claim 1,
Before the step of applying the inorganic phosphor,
Further comprising the step of placing a shadow mask (shadow mask) on the upper alignment layer or the lower alignment layer,
The inorganic phosphor is a liquid crystal smart curtain manufacturing method, characterized in that applied in a specific pattern by the shadow mask.

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