Color-changeable intelligent window

Abstract

The utility model discloses a color-changeable intelligent window which comprises two oppositely-arranged substrates, a liquid crystal layer is arranged between the substrates in a clamped mode, a first silver film is arranged on one face of the liquid crystal layer, a second silver film or a first I TO film is arranged on the other face of the liquid crystal layer, and the periphery of the liquid crystal layer is wrapped with frame glue to form the window. The first silver film and the second silver film or the first silver film and the first I TO film are used as transparent conductive electrodes to be connected with a controller, and the controller controls the light transmittance by adjusting the electric field of the liquid crystal layer. According to the color-changeable intelligent window provided by the utility model, the energy penetrating through the window can be dynamically controlled as required, the response speed can reach the millisecond level, and the full-wave-band light can be well controlled; the intelligent and green requirements of interior and exterior decoration of buildings and transportation tools such as vehicles, ships, airplanes, trains and the like are met.

Description

Technical Field

[0001] The utility model relates to a window, in particular to a color-changing intelligent window, which can be widely used in exterior and interior decoration of buildings, as well as transportation tools such as vehicles, ships, airplanes, and trains. Background Art

[0002] At present, the energy consumption of buildings in my country accounts for about 28% of the total social energy consumption. Among the 44 billion square meters of buildings, more than 85% use ordinary glass with poor thermal insulation and high energy consumption, making my country's average building energy consumption more than three times that of developed countries. In the energy crisis, smart glass that can dynamically control the energy penetrating through the window according to needs is a new generation of energy-saving window materials.

[0003] With the further development of electric and intelligent vehicles, the application of full skylights is increasing. However, another problem brought by full skylights is that it is too hot in summer, so how to isolate sunlight and reduce heat is also a very important demand. Nowadays, most car windows, including skylights, use the following solution 1: film or solution 2: multi-layer Low E coated glass to improve the sun protection effect. For example, Weilai's EC6, ET7, ET5 and other models all use double-layer heat-insulating glass skylights. The latest Xiaomi Su7 uses three-layer coated glass. In addition, the existing solution 3 is a dimmable skylight, which means adding a layer of electrochromic material to the skylight glass, which is transparent when the power is off and shading and heat-blocking when the power is on. However, solutions 1 and 2 cannot dynamically control the penetration of light. The electrochromic glass solution of solution 3 has a long reaction time and takes several minutes to change. In addition, it is impossible to achieve the ultimate control of the transmission of infrared light, visible light and ultraviolet light at the same time. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a color-changing intelligent window, which can dynamically control the energy penetrating the window according to needs, the response speed can be achieved in milliseconds, and the full-band light has good control.

[0005] The technical solution adopted by the utility model to solve the above technical problems is to provide a color-changing smart window, comprising two substrates arranged opposite to each other, a liquid crystal layer sandwiched between the substrates, a first silver film arranged on one side of the liquid crystal layer, a second silver film or a first ITO film arranged on the other side of the liquid crystal layer, the liquid crystal layer is surrounded by frame glue to form a window, the first silver film and the second silver film, or the first silver film and the first ITO film are connected to a controller as transparent conductive electrodes, and the controller controls the transmittance of light by adjusting the electric field of the liquid crystal layer.

[0006] Furthermore, a first silver film is disposed on one side of the liquid crystal layer, and a second silver film is disposed on the other side of the liquid crystal layer, and the thickness of the first silver film and the second silver film is 2nm-30nm.

[0007] Furthermore, a first silver film is disposed on one side of the liquid crystal layer, and a first ITO film is disposed on the other side of the liquid crystal layer; the thickness of the first silver film is 2nm-30nm, and the thickness of the first ITO film is 50nm-400nm.

[0008] Furthermore, one side or both sides of the first silver film are covered with a second ITO film, and the thickness of the second ITO film is 2nm-15nm.

[0009] Furthermore, the liquid crystal layer and the transparent conductive electrode thereon are divided into a plurality of regions, and the transparent conductive electrode in each region is respectively connected to a controller for independent control.

[0010] Furthermore, the substrate is made of glass, PET or PI.

[0011] Furthermore, the controller is provided with on, off and adjustable gears to control the transmittance of light.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the color-changing smart window provided by the utility model adopts liquid crystal control and uses silver film as an electrode to achieve the effects of transparent conductivity and light shielding; thereby, the energy penetrating the window can be dynamically controlled as needed, the response speed can be at the millisecond level, and the full-band light (including infrared, visible, and ultraviolet) can be well controlled; it meets the needs of interior and exterior decoration of buildings, as well as the intelligent and green needs of transportation tools such as vehicles, ships, airplanes, and trains. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the circuit connection of the color-changing window of the utility model;

[0014] Figure 2 This is a schematic diagram of the area connection control of the color-changing window of the utility model;

[0015] Figure 3 This is a schematic diagram of the color-changing window structure of the double-sided silver film of the utility model;

[0016] Figure 4 This is a schematic diagram of the color-changing window structure of the single-sided silver film of the utility model;

[0017] Figure 5 The utility model is a schematic diagram of a color-changing window structure with multiple controllable areas. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the circuit connection of the color-changing window of the utility model.

[0020] See also Figure 1 The color-changing smart window provided by the utility model includes a controller 2 and a window 1. The controller 2 and the window 1 are connected by a wire. The controller 2 can control the color change of the window 1 by means of voltage or current, and can control the transmittance of light by means of on / off / adjustable gears.

[0021] Figure 2 This is a schematic diagram of the area connection control of the color-changing window of the utility model.

[0022] See also Figure 2 The color-changing smart window provided by the utility model includes a controller 4 and a window 3, which are connected by a wire. The controller 4 can control the color change of the window 3 by means of voltage or current, and can control the light transmittance by means of on / off / adjustable gears. The window 3 can be individually controlled by a zone control scheme, such as Zone 1 / 2 / 3 in the figure, and the specific number of zone divisions can be selected according to actual needs.

[0023] Figure 3 The utility model is a schematic diagram of the color-changing window structure of the double-sided silver film.

[0024] See also Figure 3 The color-changing smart window provided in this embodiment includes a substrate 5 and a substrate 9 arranged opposite to each other, a liquid crystal layer 7 is sandwiched between the substrate 5 and the substrate 9 and sealed with frame glues 10 and 11; the substrate 5 and the substrate 9 can be made of glass, PET (polyethylene terephthalate), PI (polyimide) and other materials, preferably a glass substrate. The first silver (Ag) film 6 and the second silver (Ag) film 8 can be selected from I TO / Ag, I TO / Ag / I TO, etc.; wherein the thickness of Ag is between 2nm-30nm, and the thickness of I TO (indium tin oxide) is between 2nm-15nm.

[0025] Figure 4 The utility model is a schematic diagram of the color-changing window structure of the single-sided silver film.

[0026] The color-changing smart window provided in this embodiment includes a substrate 12 and a substrate 16 arranged opposite to each other, a liquid crystal layer 14 is clamped between the substrate 12 and the substrate 16 and sealed with frame glues 17 and 18; the substrate 12 and the substrate 16 can be made of glass, PET, PI and other materials, preferably a glass substrate; the first silver (Ag) film 13 can be made of I TO / Ag, I TO / Ag / I TO and the like; wherein the thickness of Ag is between 2nm-30nm; the thickness of the first I TO film 15 is between 50nm-400nm, preferably between 50nm-150nm.

[0027] Figure 5 The utility model is a schematic diagram of a color-changing window structure with multiple controllable areas.

[0028] The color-changing smart window provided in this embodiment includes a plurality of windows 20 in the liquid crystal control area, each of which includes a single silver or double silver electrode layer and a liquid crystal layer, and is provided with a frame glue 19. For example, the front side glass of a car, the triangular area for the rearview mirror and other areas are controlled separately.

[0029] In summary, the color-changing smart window provided by the utility model has the following advantages:

[0030] 1. The color-changing effect of the window can be achieved based on the photoelectric effect of liquid crystal.

[0031] 2. The area control effect of the color-changing window can be achieved through the separation effect of the frame sealing glue according to needs.

[0032] 3. The double-layer isolation effect of silver electrode and liquid crystal is used to achieve the isolation effect of the full spectrum of light.

[0033] 4. The maximum transmittance can be differentiated by selecting single-layer silver electrode and double-layer silver electrode.

[0034] 5. Switch response time <1s (millisecond level).

[0035] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the definition of the claims.

Claims

1. A color-changing smart window, characterized in that: The invention comprises two substrates arranged opposite to each other, a liquid crystal layer is sandwiched between the substrates, a first silver film is arranged on one side of the liquid crystal layer, a second silver film or a first ITO film is arranged on the other side of the liquid crystal layer, a frame glue is coated around the liquid crystal layer to form a window, the first silver film and the second silver film, or the first silver film and the first ITO film are connected to a controller as transparent conductive electrodes, and the controller controls the transmittance of light by adjusting the electric field of the liquid crystal layer.

2. The color-changing smart window according to claim 1, characterized in that: A first silver film is disposed on one side of the liquid crystal layer, and a second silver film is disposed on the other side of the liquid crystal layer. The thickness of the first silver film and the second silver film is 2nm-30nm.

3. The color-changing smart window according to claim 1, characterized in that: A first silver film is disposed on one side of the liquid crystal layer, and a first ITO film is disposed on the other side of the liquid crystal layer; the thickness of the first silver film is 2nm-30nm, and the thickness of the first ITO film is 50nm-400nm.

4. The color-changing smart window according to claim 2 or 3, characterized in that: One side or both sides of the first silver film are covered with a second ITO film, and the thickness of the second ITO film is 2nm-15nm.

5. The color-changing smart window according to claim 1, characterized in that: The liquid crystal layer and the transparent conductive electrode thereon are divided into a plurality of regions, and the transparent conductive electrode in each region is respectively connected to a controller for independent control.

6. The color-changing smart window according to claim 1, characterized in that: The substrate is made of glass, PET or PI.

7. The color-changing smart window according to claim 1, characterized in that: The controller is provided with on, off and adjustable gears to control the transmittance of light.

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