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Dimming glass, preparation method thereof and intelligent window

A technology for dimming glass and windows, applied in windshields, parallel glass structures, windows, etc., can solve problems such as black spots on the dye liquid crystal layer, reduce high-pressure extrusion, uniform force, and reduce the risk of black spots Effect

Active Publication Date: 2022-05-13
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the traditional switchable glass is combined, it is easy to cause black spots in the dye liquid crystal layer

Method used

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  • Dimming glass, preparation method thereof and intelligent window
  • Dimming glass, preparation method thereof and intelligent window
  • Dimming glass, preparation method thereof and intelligent window

Examples

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preparation example Construction

[0084] see Figure 6 , the preparation method of the dimming glass of the embodiment of the present application, comprising:

[0085] S510, providing a first substrate 110;

[0086] S520, laminating an adhesive layer 300 on one side of the first substrate 110, the adhesive layer 300 has a hollow area, and the hollow area is compatible with the dye liquid crystal layer 200;

[0087] S530, placing the dye liquid crystal layer 200 in the hollow area, so that the adhesive layer 300 is arranged around the dye liquid crystal layer 200;

[0088] S540, laminating the second substrate 120 on the side of the bonding layer 300 and the dye liquid crystal layer 200 away from the first substrate 110, to obtain a dimming glass precursor;

[0089] S550, putting the light-adjustable glass precursor into an autoclave, and performing a lamination process to obtain a light-adjustable glass; the temperature of the lamination process is 90-110° C., and the pressure is 0.75-0.85 MPa.

[0090] In ...

Embodiment 1

[0109] Materials: the first substrate 110 is a first flat glass substrate; the second substrate 120 is a second flat glass substrate; the adhesive layer 300 is a 0.76 mm thick PVB film; the dye liquid crystal layer 200 is a flexible dye liquid crystal layer.

[0110] The method is as following steps 10-60.

[0111] Step 10: Laminate the first flat glass substrate, the PVB film, the flexible dye liquid crystal layer and the second flat glass substrate in sequence.

[0112] Wherein the first flat glass substrate and the PVB film are trimmed to make their edges flush. The size of the flexible dye liquid crystal layer is fixed, correspondingly shrinking inward by 10-30mm compared with the first flat glass substrate and the bonding layer.

[0113] Step 20: Pick up the second flat glass substrate stacked in step 10 and put it aside, use a special blade to cut the PVB film along the edge of the flexible dye liquid crystal layer, so that the size of the obtained PVB film frame (that is...

Embodiment 2

[0128] Material: The only difference from Example 1 is that the bonding layer is an EVA film with a thickness of 0.76 mm.

[0129] The difference between the method and the first embodiment is only that some parameters in step 60 are different.

[0130] Specifically, in step 60: the temperature of the autoclave is changed to 90°C. The parameters of each stage change as follows:

[0131] The first stage: the temperature of the autoclave is changed to 50 degrees.

[0132] The second stage: the temperature of the autoclave is changed to 70 degrees.

[0133] The third stage: the temperature of the autoclave becomes 90 degrees, and the pressure becomes -0.09~-0.1MPa.

[0134] The fourth stage: the temperature of the autoclave is changed to 90 degrees.

[0135] The fifth stage: the temperature of the autoclave is changed to 70 degrees.

[0136] The sixth stage: the temperature of the autoclave is changed to 70 degrees.

[0137] Seventh stage: The temperature of the autoclave i...

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Abstract

The invention provides dimming glass, a preparation method thereof and an intelligent window. The dimming glass comprises a first substrate and a second substrate which are oppositely arranged; the bonding layer and the dye liquid crystal layer are arranged between the first substrate and the second substrate; wherein the bonding layer is arranged around the dye liquid crystal layer. The preparation method comprises the steps of providing a first substrate; a bonding layer is stacked on one side of the first substrate, the bonding layer is provided with a hollow area, and the hollow area is matched with the dye liquid crystal layer; a dye liquid crystal layer is placed in the hollow area, and the bonding layer is arranged around the dye liquid crystal layer; laminating a second substrate on one side, far away from the first substrate, of the bonding layer and the dye liquid crystal layer to obtain a dimming glass precursor; putting the mixture into a high-pressure kettle, and carrying out sheet combining treatment to obtain the dimming glass; the temperature of the lamination treatment is 90 to 110 DEG C, and the pressure of the lamination treatment is 0.75 to 0.85 MPa. High-pressure extrusion of the bonding layer on the dye liquid crystal layer can be reduced as much as possible, stress in the dye liquid crystal layer is uniform, and the risk of generating black spots is reduced.

Description

technical field [0001] The present application relates to the technical field of dye liquid crystal switchable glass, in particular to a switchable glass, a preparation method thereof and a smart window. Background technique [0002] Switchable glass can switch between transparent and opaque states of the glass. There is demand for dimming glass in automotive glass and architectural glass. [0003] Dimmable glass is usually obtained by laminating the adhesive layer (adhesive film) and the dye liquid crystal layer (dye liquid crystal dimming function layer) between the adhesive layers (adhesive film) of two pieces of glass in laminated glass. However, when the traditional switchable glass is combined, it is easy to cause black spots in the dye liquid crystal layer. Contents of the invention [0004] In view of this, the purpose of this application is to propose a dimming glass, its preparation method and smart window. [0005] Based on the above purpose, the application ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1333G02F1/1347E06B9/24E06B3/66B60J1/00
CPCG02F1/1333G02F1/1347G02F1/133305E06B9/24E06B3/66B60J1/001E06B2009/2464
Inventor 吴小龙王春雷宋勇陈娟王昌银梁鹏王瑛张思凯翟德深巨小倩李展
Owner BOE TECH GRP CO LTD