CN205176432U - Liquid crystal window - Google Patents

Abstract

The utility model discloses a liquid crystal window, which comprises: a first glass substrate, a second glass substrate, and a liquid crystal layer arranged between the first glass substrate and the second glass substrate. A common electrode layer is provided on a side close to the liquid crystal layer on a glass substrate, and at least two patterned electrode layers are provided on a side close to the liquid crystal layer on the second glass substrate, and the at least two patterned electrode layers An insulating layer is arranged between them. The adoption of the liquid crystal window can satisfy the needs of users for selecting different patterns in different situations, and improve user experience.

Description

a liquid crystal window

technical field

The utility model relates to the technical field of liquid crystal windows, in particular to a liquid crystal window.

Background technique

At present, windows are generally embedded with glass on the window frame, and are matched with curtains, which are used to block light and beautify the living environment. Ordinary curtains are made of cotton, hemp, chemical fiber fabrics or other light-blocking materials, which are not only bulky, but also very troublesome to clean and disassemble. Once the pattern of the general curtain is selected, the replacement cycle is very long. One. Compared with traditional mechanical windows and various manual or electric windows, liquid crystal windows have no disadvantages such as curtains and no need for installation, cleaning, and disassembly.

Liquid crystal is a special form of matter whose state of matter is between solid crystal and traditional liquid. Today, liquid crystals have been widely used in displays and various optical photonic devices. In our daily life, using liquid crystal windows has become a trend.

With the advancement of technology, liquid crystal windows have entered the market and have been loved by people. However, most of the existing liquid crystal windows change the light transmittance of the liquid crystal window through the characteristics of the liquid crystal. For the pattern of the liquid crystal window, most of them are single and fixed, which often ignores the needs of users to choose different patterns for different situations, and cannot really meet the requirements. User needs.

Utility model content

In view of this, an embodiment of the present invention provides a liquid crystal window, which is a multi-pattern liquid crystal window to meet different needs of users.

The embodiment of the utility model provides a liquid crystal window, including:

a first glass substrate, a second glass substrate, and a liquid crystal layer disposed between the first glass substrate and the second glass substrate;

A common electrode layer is provided on the side of the first glass substrate adjacent to the liquid crystal layer;

At least two patterned electrode layers are arranged on the side of the second glass substrate adjacent to the liquid crystal layer, and an insulating layer is arranged between the at least two patterned electrode layers.

A liquid crystal window provided by an embodiment of the present invention, the liquid crystal window includes a first glass substrate, a second glass substrate, and a liquid crystal layer arranged between the first glass substrate and the second glass substrate, the first A common electrode layer is provided on the side of the glass substrate adjacent to the liquid crystal layer, and at least two patterned electrode layers are provided on the side of the second glass substrate adjacent to the liquid crystal layer, and the at least two patterned electrode layers are provided between the at least two patterned electrode layers. There is insulation. The adoption of the liquid crystal window can satisfy the needs of users for selecting different patterns in different situations, and improve user experience.

Description of drawings

In order to illustrate the technical solutions of the exemplary embodiments of the present invention more clearly, a brief introduction to the accompanying drawings used in describing the embodiments is given below. Apparently, the accompanying drawings introduced are only the accompanying drawings of a part of the embodiments to be described by the utility model, rather than all the accompanying drawings. Get additional drawings.

Fig. 1 is a schematic structural diagram of a liquid crystal window provided by Embodiment 1 of the present invention;

Fig. 2 is a schematic structural diagram of a strip pattern electrode layer provided by Embodiment 1 of the present invention;

Fig. 3 is a schematic structural view of the ring pattern electrode layer provided by Embodiment 1 of the present invention;

Fig. 4 is a schematic structural diagram of a rectangular pattern electrode layer provided by Embodiment 1 of the present invention;

Fig. 5 is a schematic structural diagram of a liquid crystal window provided in Embodiment 2 of the present invention;

Fig. 6 is a working principle diagram of a polymer dispersed liquid crystal in a method for controlling a liquid crystal window provided by Embodiment 3 of the present invention;

Fig. 7 is a working principle diagram of a polymer-stabilized bistable cholesteric liquid crystal in a method for controlling a liquid crystal window provided by Embodiment 3 of the present invention;

FIG. 8 is a working principle diagram of a dual-frequency cholesteric liquid crystal in a method for controlling a liquid crystal window provided by Embodiment 3 of the present invention.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be fully described below through specific implementation methods in combination with the accompanying drawings in the embodiments of the utility model. Apparently, the described embodiments are some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other implementations obtained by persons of ordinary skill in the art without making creative work For example, all fall within the scope of protection of the present utility model.

Embodiment one

FIG. 1 is a schematic structural diagram of a liquid crystal window provided in Embodiment 1 of the present invention. As shown in FIG. 1, the liquid crystal window includes: a first glass substrate 1, a second glass substrate 2, a liquid crystal layer 3, a common electrode layer 4, at least two patterned electrodes 5, and an insulating layer 6;

Wherein, a liquid crystal layer 3 is arranged between the first glass substrate 1 and the second glass substrate 2;

A common electrode layer 4 is provided on the side of the first glass substrate 1 adjacent to the liquid crystal layer 3;

At least two patterned electrode layers 5 are disposed on the side of the second glass substrate 2 adjacent to the liquid crystal layer 3 , and an insulating layer 6 is disposed between the at least two patterned electrode layers 5 .

Specifically, the at least two patterned electrode layers 5 may be a striped patterned electrode layer 51, a ring patterned electrode layer 52, a rectangular patterned electrode layer 53, a non-patterned electrode layer 54, or other patterned electrode layers.

Further, the pattern electrode layer 5 includes a pattern electrode 7 and an insulating layer 6 arranged between the pattern electrodes 7, the pattern electrode 7 can be a strip pattern electrode 71, a ring pattern electrode 72, a rectangular pattern electrode 73 Or the non-patterned electrode 74, or other patterned electrodes.

FIG. 2 is a schematic structural view of the strip pattern electrode layer provided by Embodiment 1 of the present invention. As shown in FIG. 2 , the strip pattern electrode layer 51 includes a strip pattern electrode 71 and an insulating layer 6 .

FIG. 3 is a schematic structural view of the ring pattern electrode layer provided by Embodiment 1 of the present invention. As shown in FIG. 3 , the ring pattern electrode layer 52 includes a ring pattern electrode 72 and an insulating layer 6 .

FIG. 4 is a schematic structural diagram of a rectangular pattern electrode layer provided by Embodiment 1 of the present invention. As shown in FIG. 4 , the rectangular pattern electrode layer 53 includes a rectangular pattern electrode 73 and an insulating layer 6 .

In the liquid crystal window provided by Embodiment 1 of the present invention, a liquid crystal layer is provided between the first glass substrate and the second glass substrate, and then a common electrode layer is provided on the side of the first glass substrate adjacent to the liquid crystal layer. At least two patterned electrode layers are arranged on the side adjacent to the liquid crystal layer on the second glass substrate, and an insulating layer is arranged between the at least two patterned electrode layers. The adoption of the liquid crystal window can satisfy the needs of users for selecting different patterns in different situations, and improve user experience.

Embodiment two

This embodiment is aimed at the liquid crystal window provided in the first embodiment above, and provides a method for controlling the liquid crystal window, the method including:

The common electrode layer 4 is controlled, and one of the at least two patterned electrode layers 5 is energized respectively, so that the liquid crystal window displays a pattern corresponding to the patterned electrode layer.

Exemplarily, FIG. 5 is a schematic structural diagram of a liquid crystal window provided in Embodiment 2 of the present invention. As shown in Figure 5, the liquid crystal window includes: at least two pattern display switches 8, the at least two pattern display switches 8 are arranged in one-to-one correspondence with the at least two pattern electrode layers 5, the at least two pattern display switches The switch 8 is located at the first edge of the first glass substrate 1 or the second glass substrate 2 .

Further, the liquid crystal window also includes a common electrode switch 9, which is set corresponding to the common electrode layer 4, and the common electrode switch 9 is located on the first glass substrate 1 or the second glass substrate 2. second edge.

Specifically, the liquid crystal window further includes a pattern display switch 8 corresponding to the pattern electrode layer 5 , and a common electrode switch 9 corresponding to the common electrode layer 4 . Specifically, the pattern display switch 8 can be a bar pattern display switch 81, a ring pattern display switch 82, a rectangular pattern display switch 83, a no pattern display switch 84, or other pattern display switches.

Exemplarily, the common electrode layer 4 is controlled, and one of the at least two patterned electrode layers 5 is energized respectively, so that the liquid crystal window displays a pattern corresponding to the patterned electrode layer. That is, controlling the common electrode switch 9 to be used together with the bar pattern display switch 81 can make the liquid crystal window display a bar pattern; controlling the common electrode switch 9 to be used together with the ring pattern display switch 82 can make the liquid crystal window display a ring pattern; Control common electrode switch 9 and rectangular pattern display switch 83 to use together, can make this liquid crystal window display rectangular pattern; Control the liquid crystal window to display transparent or opaque state. The control common electrode switch 9 is used together with other pattern display switches to make the liquid crystal window display other patterns.

Further, the pattern display switch 8 may be located at the first edge of the first glass substrate 1 or the second glass substrate 2, and the common electrode switch 9 may be located at the first glass substrate 1 or the second glass substrate 2 the second edge of .

In the method for controlling the liquid crystal window provided by Embodiment 2 of the present invention, by controlling the common electrode layer, one of the at least two pattern electrode layers is energized separately, so that the liquid crystal window displays a pattern corresponding to the pattern electrode layer. With this method, there is no need for a polarizer, only by setting the common electrode switch and the pattern display switch corresponding to the common electrode layer and the pattern electrode layer. When the common electrode switch and the pattern display switch are used together, it can be used to control the display of the liquid crystal window. The pattern can realize the user's demand for multi-pattern liquid crystal windows and improve the user experience.

Embodiment three

This embodiment is based on the above-mentioned embodiments, and is optimized on the basis of the above-mentioned embodiments, specifically providing three working principles of liquid crystals to optimize the liquid crystal windows provided in the above-mentioned embodiments.

Further, the liquid crystal layer may be a polymer dispersed liquid crystal layer, a polymer stabilized bistable cholesteric liquid crystal layer or a dual frequency cholesteric liquid crystal layer.

Due to the optical and dielectric anisotropy of liquid crystal molecules, in the electric field, if the electric field strength is greater than the liquid crystal driving threshold, for positive liquid crystal molecules, the long axis will be aligned along the direction of the electric field; for negative liquid crystal molecules, the short The axes will be aligned along the direction of the electric field. Fig. 6 is the working principle of the polymer dispersed liquid crystal in the control method of the liquid crystal window provided by the third embodiment of the present invention, as shown in Fig. The direction of the molecular optical axis points in all directions, and the liquid crystal device presents a high scattering state (opaque); when the electricity is turned on, the liquid crystal molecules stand up, the optical axis direction is consistent, and the liquid crystal presents a transparent state, as shown in Figure 6. The places with electrodes and without electrodes form different states to realize the generation of patterns.

Specifically, the driving voltage of the polymer-dispersed liquid crystal is about 20V. When the driving voltage reaches 20V, the polymer-dispersed liquid crystal starts to work, and the liquid crystal window using the liquid crystal will present a pattern corresponding to the patterned electrode layer. Optionally, it may be a strip electrode pattern, or a ring electrode pattern, or a rectangular electrode pattern, or no electrode pattern, that is, the entire liquid crystal window is fully transparent or fully opaque.

Fig. 7 is the working principle of the polymer-stabilized bistable cholesteric liquid crystal in the control method of a liquid crystal window provided by the third embodiment of the present invention. As shown in Fig. 7, when the polymer stabilizes the bistable cholesteric liquid crystal As a material, a planar texture is formed in the parallel cells after orientation. Due to the anisotropy of the refractive index of the liquid crystal molecules, a self-assembled refraction period change is formed during the rotation of the liquid crystal molecules, and the rotation of the liquid crystal molecules is 360 degrees for a period. , whose length is called the pitch. For a certain kind of liquid crystal, different helical pitches reflect different wavelengths of light, which is determined by the Bragg reflection formula: λ=np, where λ represents the reflected wavelength, n represents the effective refractive index, and p represents the helical pitch. This type of liquid crystal can be used to make a color liquid crystal window or a colorless liquid crystal window. For bistable liquid crystals, when a higher voltage is applied to the liquid crystal, the cholesteric liquid crystal molecules will be arranged vertically to form an "H" state. At this time, the liquid crystal layer is in a transparent state. When the voltage drops rapidly, the cholesteric liquid crystal The molecules form a planar state in the liquid crystal cell. In this state, a long-term transparent state can be achieved without continuously applying voltage; when the voltage is slowly reduced, the liquid crystal molecules will change from the "H" state to the focal conic state. In this state, the direction of the optical axis of the liquid crystal molecules Disorderly, a highly scattering state is achieved, and the opaque state can also be maintained without continuous application of voltage. These two states (planar state and focal conic state) can be stable for a long time without an external electric field, so they are called bistable states, as shown in Figure 7.

Specifically, the driving voltage of the polymer-stabilized bistable cholesteric liquid crystal is about 100V. When the driving voltage reaches 100V, the cholesteric liquid crystal molecules will be arranged vertically to form an "H" state. At this time, the liquid crystal layer is in a transparent state. When the voltage drops rapidly, the cholesteric liquid crystal molecules form a planar state in the liquid crystal layer. In this state, a long-term transparent state can be achieved without continuous voltage application. When the voltage is slowly reduced, the liquid crystal molecules will change from the "H" state to the focal conic state. , in this state, the direction of the optical axis of the liquid crystal molecules is disordered, achieving a high scattering state, and at this time, the opaque state can be maintained without continuous application of voltage. Utilizing this principle, the utility model uses polymer-stabilized bistable cholesteric phase liquid crystals to prepare electrodes with various patterns, and a single liquid crystal layer can realize the formation of multiple patterns of liquid crystal windows.

Fig. 8 is the working principle of the dual-frequency cholesteric liquid crystal in the control method of the liquid crystal window provided by the third embodiment of the present invention. As shown in Fig. The liquid crystal molecular arrangement structure is the same as that of the polymer stabilized bistable cholesteric liquid crystal, except that the dielectric constant of this type of liquid crystal will have a conversion when the high-frequency voltage and low-frequency voltage are applied. When a low-frequency voltage is applied, the cholesteric liquid crystal is converted from a planar state to a focal conic state, and the liquid crystal is in an opaque state; when a high-frequency voltage is applied, the cholesteric liquid crystal molecules will return to a planar state, and the liquid crystal is in a transparent state. As shown in Figure 8.

Specifically, the driving voltage of the dual-frequency cholesteric liquid crystal is below 20V. When a low-frequency voltage is applied, the cholesteric liquid crystal transforms from a planar state to a focal conic state, and the liquid crystal presents an opaque state; when a high-frequency voltage is applied, the cholesteric liquid crystal The liquid crystal molecules will return to the plane state, and the liquid crystal is in a transparent state at this time. This principle is used to modulate the liquid crystal window to realize a multi-pattern liquid crystal window.

The control method of the liquid crystal window provided by the third embodiment of the utility model provides three kinds of control methods of the liquid crystal window through the working principles of three different liquid crystals, and controls the liquid crystal window to realize the function of having multiple patterns.

Note that the above are only preferred embodiments of the present invention and the applied technical principles. Those skilled in the art will understand that the utility model is not limited to the specific embodiments described here, and various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the utility model. Therefore, although the utility model has been described in detail through the above embodiments, the utility model is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the utility model. The scope of the present invention is determined by the appended claims.

Claims (6)

1. a lcd window, is characterized in that, comprising: the first glass substrate, the second glass substrate, and is arranged on the liquid crystal layer between described first glass substrate and described second glass substrate;

The side described first glass substrate closing on described liquid crystal layer is provided with common electrode layer;

The side described second glass substrate closing on described liquid crystal layer is provided with at least two pattern electrode layers, is provided with insulation course between described at least two pattern electrode layers.

2. lcd window according to claim 1, it is characterized in that, also comprise at least two pattern displaying switches, described at least two pattern displaying switches and described at least two pattern electrode layer one_to_one corresponding are arranged, and described at least two pattern displaying switches are positioned at the first edge of described first glass substrate or the second glass substrate.

3. lcd window according to claim 1, it is characterized in that, also comprise public electrode switch, described public electrode switch is corresponding with described common electrode layer to be arranged, and described public electrode switch is positioned at the second edge of described first glass substrate or the second glass substrate.

4. lcd window according to claim 1, is characterized in that, described pattern electrode layer comprises pattern electrode and is arranged on the insulation course between described pattern electrode.

5. lcd window according to claim 4, is characterized in that, described pattern electrode is bar paten electrode, circular pattern electrode, rectangular patterns electrode or pattern-free electrode.

6. lcd window according to claim 1, is characterized in that, described liquid crystal layer is polymer dispersed liquid crystal layer, polymer stabilizing bistable cholesteric liquid crystal layer or double frequency cholesteric crystal layer.