Light control glass with special structure

By adopting a three-layer structure design in the dimming glass, with the second glass layer as the middle shared substrate, an independent liquid crystal dimming unit is constructed, which solves the problems of traditional dimming glass being thick and heavy and costly, and achieves a thinner, lighter, more transparent glass with more diverse dimming effects.

CN224303984UActive Publication Date: 2026-05-29福建紫鸿鹄科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
福建紫鸿鹄科技有限公司
Filing Date
2025-08-25
Publication Date
2026-05-29

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Abstract

The utility model relates to glass technical field discloses a kind of light-adjusting glass of special structure, including glass main body, the glass main body sequentially includes glass layer one, glass layer two and glass layer three from top to bottom;ITO component, the ITO component includes ITO layer one, ITO layer two, ITO layer three and ITO layer four;Liquid crystal component, the liquid crystal component includes liquid crystal one and liquid crystal two;Wherein, the ITO layer one is arranged in the lower surface of the glass layer one, the ITO layer two is arranged in the upper surface of the glass layer two, and the liquid crystal one is sealed between the ITO layer one and ITO layer two.The utility model constructs three glass two liquid crystal new structure with glass layer two as shared substrate.Compared with traditional four glass structure needing laminated composite, the present scheme reduces a layer of glass substrate, so that product thickness, weight and manufacturing cost are significantly reduced.This not only facilitates transportation and installation, but also effectively improves the market competitiveness of product.
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Description

Technical Field

[0001] This utility model relates to the field of glass technology, and in particular to a dimming glass with a special structure. Background Technology

[0002] Smart glass, also known as intelligent glass or electrochromic glass, is a special building or decorative material whose light transmission state can be changed by applying an electric field. With its unique function of being transparent when powered on and frosted when powered off, it is widely used in high-end office partitions, conference rooms, doors and windows, vehicle sunroofs, and commercial projection screens, meeting the needs of modern spaces for privacy protection, light management, and flexible switching between openness and privacy. With technological advancements, a single "on / off" mode can no longer meet all needs, and the market demand for multi-functional smart glass capable of multi-level dimming, zone control, or the superposition of different display effects is growing.

[0003] In existing technologies, to achieve dual-layer or multi-level dimming effects, the common approach is to laminate two or more independent, pre-fabricated standard dimming glass units together. A standard dimming glass unit itself is a sandwich structure of glass-ITO conductive film-liquid crystal layer-ITO conductive film-glass. Therefore, to laminate two such standard units together, it is necessary to use an interlayer film such as PVB or EVA for further lamination, ultimately forming a four-glass, two-liquid crystal structure containing four glass substrates and two independent liquid crystal layers. The underlying principle is to provide circuit control for each of the two independent liquid crystal dimming layers, thereby achieving various combinations of states such as fully transparent, semi-transparent, and fully frosted.

[0004] However, this traditional manufacturing method, which involves laminating two independent dimming glass units, has inherent structural defects. The most significant problem is its excessive overall thickness and weight. The stacking of four glass substrates not only makes the final product exceptionally bulky, causing great inconvenience for transportation and on-site installation, but also requires a more robust frame system to support it, increasing the structural load on the building. Furthermore, from a cost perspective, this solution consumes four layers of glass substrates and four layers of ITO conductive film, resulting in high material costs. Moreover, its manufacturing process requires the production of two independent dimming glass units first, followed by a final lamination process, making the process cumbersome and leading to high overall production costs. Therefore, a dimming glass with a special structure is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a special structure for dimming glass, aiming to improve upon the inherent defects of traditional double-layer dimming glass, which is made through lamination and has a heavy structure and high cost. This not only increases the difficulty of transportation and installation and the building load, but also limits its widespread application due to its complicated process and large material consumption.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dimming glass with a special structure, comprising:

[0007] The glass body comprises, from top to bottom, glass layer one, glass layer two, and glass layer three;

[0008] ITO components, the ITO components including ITO layer one, ITO layer two, ITO layer three and ITO layer four;

[0009] The liquid crystal assembly includes liquid crystal one and liquid crystal two;

[0010] Wherein, the first ITO layer is disposed on the lower surface of the first glass layer, the second ITO layer is disposed on the upper surface of the second glass layer, and the first liquid crystal is sealed between the first ITO layer and the second ITO layer.

[0011] The third ITO layer is disposed on the lower surface of the second glass layer, the fourth ITO layer is disposed on the upper surface of the third glass layer, and the second liquid crystal is sealed between the third ITO layer and the fourth ITO layer.

[0012] As a further description of the above technical solution:

[0013] Glass layer one, glass layer two, and glass layer three are all tempered glass.

[0014] As a further description of the above technical solution:

[0015] The first glass layer, the first ITO layer, the first liquid crystal, the second ITO layer, and the second glass layer together constitute the first dimming unit.

[0016] As a further description of the above technical solution:

[0017] The second glass layer, the third ITO layer, the second liquid crystal layer, the fourth ITO layer, and the third glass layer together constitute the second dimming unit.

[0018] As a further description of the above technical solution:

[0019] The first ITO layer and the second ITO layer form a first conductive pair to control the molecular arrangement state of the liquid crystal under the action of an external electric field.

[0020] As a further description of the above technical solution:

[0021] The third ITO layer and the fourth ITO layer form a second conductive pair to control the molecular arrangement state of the liquid crystal II under the action of an external electric field.

[0022] As a further description of the above technical solution:

[0023] The first conductive pair and the second conductive pair can be independently energized and controlled, thereby realizing independent dimming or combined dimming of the liquid crystal one and the liquid crystal two.

[0024] As a further description of the above technical solution:

[0025] The second glass layer serves as an intermediate shared substrate, with ITO layer two and ITO layer three respectively disposed on its upper and lower surfaces for controlling different liquid crystal components.

[0026] This utility model has the following beneficial effects:

[0027] 1. In this invention, by using glass layer two as an intermediate shared substrate, dimming units of liquid crystal one and liquid crystal two are constructed on its upper and lower surfaces, respectively. Compared to the traditional four-glass, two-liquid crystal structure that requires laminating two finished dimming glasses, this solution directly reduces the use of one glass substrate. This core improvement significantly reduces the overall thickness and weight of the dimming glass, making it easier to install and transport. Simultaneously, by saving the material cost of one glass substrate and related coating and lamination processes, the manufacturing cost of the product is effectively reduced, enhancing its market competitiveness.

[0028] 2. In this invention, in traditional multi-layer glass composite structures, light undergoes reflection and absorption to some extent as it passes through each glass layer or interface, resulting in a loss of light transmittance. This solution eliminates two interfaces that could cause light loss by reducing one glass substrate layer, effectively increasing the maximum light transmittance of the entire glass body in its electrically transparent state. This results in a better visual effect and higher brightness. While achieving independent dimming functionality across two layers, this invention successfully makes the product structure thinner, lower in cost, and higher in light transmittance, greatly enhancing the product's overall performance and practical value. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of a dimming glass with a special structure proposed in this utility model;

[0030] Figure 2 This is a schematic diagram of the two-part glass layer structure of a dimming glass with a special structure proposed in this utility model;

[0031] Figure 3 for Figure 2 Enlarged view of point A in the image.

[0032] Legend:

[0033] 1. Glass body; 101. Glass layer one; 102. Glass layer two; 103. Glass layer three; 2. Liquid crystal module; 201. Liquid crystal one; 202. Liquid crystal two; 3. ITO module; 301. ITO layer one; 302. ITO layer two; 303. ITO layer three; 304. ITO layer four. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figure 1 - Figure 3 An embodiment of this utility model is provided: a dimming glass with a special structure, including a glass body 1 that serves as the overall structural support. The glass body 1 includes, from top to bottom, a glass layer 101 that serves as an outer protective layer and provides a first substrate, a glass layer 102 that serves as an intermediate shared substrate, and a glass layer 103 that serves as an outer protective layer and provides a third substrate.

[0036] The ITO component 3 is used to apply an electric field. The ITO component 3 includes ITO layer 301, ITO layer 302, ITO layer 303 and ITO layer 304, which serve as conductive electrodes, respectively.

[0037] And a liquid crystal component 2 for switching light states, the liquid crystal component 2 including a first dimming medium liquid crystal 201 and a second dimming medium liquid crystal 202 that can be controlled independently.

[0038] In this structure, ITO layer 301 is coated on the lower surface of glass layer 101, and ITO layer 302 is coated on the upper surface of glass layer 102 to form a first control electrode pair. Liquid crystal 201 is sealed between these two conductive layers, namely ITO layer 301 and ITO layer 302.

[0039] Similarly, ITO layer 303 is coated on the lower surface of glass layer 2 102, and ITO layer 4 304 is coated on the upper surface of glass layer 3 103 to form a second control electrode pair. Liquid crystal 202 is sealed between these two other conductive layers, namely ITO layer 303 and ITO layer 4 304.

[0040] Specifically, glass layer 102 is used as a common intermediate substrate, and independent dimming units are built on its upper and lower surfaces. This design replaces the traditional four-glass structure that requires two finished dimming glass pieces to be laminated twice. By reducing the amount of one glass substrate, the thickness and weight of the product are reduced directly, and material and production costs are effectively saved.

[0041] Reference Figure 1 - Figure 3 Glass layer 101, glass layer 102, and glass layer 103 are all tempered glass to ensure that the entire glass body 1 has sufficient mechanical strength and safety performance. Glass layer 101, ITO layer 301, liquid crystal 201, ITO layer 302, and glass layer 102 as a substrate together constitute an independently working basic functional layer, namely the first dimming unit. Glass layer 102, ITO layer 303, liquid crystal 202, ITO layer 304, and glass layer 103 as a substrate together constitute another independently working basic functional layer, namely the second dimming unit. ITO layer 301 and ITO layer 302 form a first conductive pair to provide a controllable electric field environment for the liquid crystal 201 therebetween, thereby directly controlling the liquid crystal by applying or removing voltage. The molecular arrangement of crystal 201; ITO layer 303 and ITO layer 404 form a second conductive pair. Similarly, this conductive pair provides a controllable electric field environment for liquid crystal 202, thereby controlling the molecular arrangement of liquid crystal 202; the first and second conductive pairs can be connected to independent circuits and controlled independently by power supply. This design gives the product great flexibility, thereby realizing independent dimming of liquid crystal 201 and liquid crystal 202, or achieving diverse combined dimming effects through different power supply combinations; glass layer 2102, as the core structure of this utility model, is designed as an intermediate shared substrate, with its upper and lower surfaces serving different dimming units, and ITO layer 202 and ITO layer 303 respectively provided for controlling different liquid crystal components 2.

[0042] Specifically, two functionally independent dimming units are integrated into a compact three-layer glass structure. By sharing the middle glass layer 102 as a common substrate and constructing control loops on its upper and lower surfaces respectively, not only is independent or combined control of the states of the two liquid crystal layers achieved to meet diverse light management needs, but the physical structure of the multilayer dimming glass is also fundamentally optimized.

[0043] Working principle: When this dimming glass is needed, glass layer 102 is used as a common intermediate substrate. An ITO layer 302 is disposed on its upper surface, forming a first conductive pair with the ITO layer 301 on the lower surface of glass layer 101. Liquid crystal 201 is sealed between these two conductive layers, thus forming a first dimming unit. Similarly, an ITO layer 303 is disposed on the lower surface of glass layer 102, forming a second conductive pair with the ITO layer 304 on the upper surface of glass layer 303. Liquid crystal 202 is sealed between these two layers, thus forming a second dimming unit.

[0044] In practical use, the first and second conductive pairs can be independently energized and controlled via an external circuit. When a voltage is applied to a conductive pair, such as ITO layer 301 and ITO layer 302, the electric field formed between them drives the corresponding liquid crystal molecules, liquid crystal 201, from a disordered, light-scattering state to an ordered, light-transmitting state, causing the dimming unit to change from fogged to transparent. Conversely, when the power is off, the liquid crystal molecules return to a disordered state, and the unit becomes fogged.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dimming glass with a special structure, characterized in that, include: The glass body (1) comprises, from top to bottom, a first glass layer (101), a second glass layer (102), and a third glass layer (103); ITO component (3), the ITO component (3) includes ITO layer one (301), ITO layer two (302), ITO layer three (303) and ITO layer four (304); A liquid crystal assembly (2), the liquid crystal assembly (2) comprising liquid crystal one (201) and liquid crystal two (202); Wherein, the first ITO layer (301) is disposed on the lower surface of the first glass layer (101), the second ITO layer (302) is disposed on the upper surface of the second glass layer (102), and the first liquid crystal (201) is sealed between the first ITO layer (301) and the second ITO layer (302). The third ITO layer (303) is disposed on the lower surface of the second glass layer (102), the fourth ITO layer (304) is disposed on the upper surface of the third glass layer (103), and the second liquid crystal (202) is sealed between the third ITO layer (303) and the fourth ITO layer (304).

2. The dimming glass with a special structure according to claim 1, characterized in that, The first glass layer (101), the second glass layer (102), and the third glass layer (103) are all tempered glass.

3. The dimming glass with a special structure according to claim 1, characterized in that, The first glass layer (101), the first ITO layer (301), the first liquid crystal layer (201), the second ITO layer (302), and the second glass layer (102) together constitute the first dimming unit.

4. The dimming glass with a special structure according to claim 1, characterized in that, The second glass layer (102), the third ITO layer (303), the second liquid crystal layer (202), the fourth ITO layer (304), and the third glass layer (103) together constitute the second dimming unit.

5. The dimming glass with a special structure according to claim 1, characterized in that, The ITO layer one (301) and ITO layer two (302) form a first conductive pair to control the molecular arrangement state of the liquid crystal one (201) under the action of an external electric field.

6. The dimming glass with a special structure according to claim 1, characterized in that, The ITO layer three (303) and ITO layer four (304) form a second conductive pair to control the molecular arrangement state of the liquid crystal two (202) under the action of an external electric field.

7. A dimming glass with a special structure according to claim 5, characterized in that, The first conductive pair and the second conductive pair can be independently energized and controlled, thereby realizing independent dimming or combined dimming of the liquid crystal one (201) and the liquid crystal two (202).

8. The dimming glass with a special structure according to claim 1, characterized in that, The second glass layer (102) serves as an intermediate shared substrate, with ITO layer 2 (302) and ITO layer 3 (303) respectively disposed on its upper and lower surfaces for controlling different liquid crystal components (2).