Dimming glass and preparation method thereof

Abstract

The invention provides dimming glass and a preparation method thereof, and the dimming glass comprises a first substrate; the light adjusting layer is arranged on one side of the first substrate; the light sensing layer is arranged on the side, away from the first substrate, of the light adjusting layer; the light sensing layer is electrically connected with the light adjusting layer; the second substrate is arranged on the side, away from the light adjusting layer, of the light sensing layer. According to the dimming glass, the structural complexity of the dimming glass can be reduced, and the preparation cost of the dimming glass is reduced.

Description

Technical Field

[0001] This disclosure relates to the field of smart glass, and more specifically, to a smart glass and a method for preparing the same. Background Technology

[0002] Smart glass is a type of intelligent glass that can adjust its light transmittance as needed, allowing it to switch between transparent and fogged states. It is used in fields such as architecture, transportation, and home furnishing to enhance the privacy, aesthetics, and energy efficiency of a space.

[0003] However, in related technologies, standalone dimming glass cannot sense changes in ambient light intensity and can only manually adjust transmittance, which is inconvenient. Therefore, while dimming glass with an additional ambient light sensor can automatically adjust brightness based on changes in ambient light intensity, it requires purchasing the sensor separately and integrating it into the dimming glass, resulting in a complex structure and higher cost.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] This disclosure provides a dimming glass and a method for preparing the same, to at least solve the technical problems of existing dimming glass with added ambient light sensors having complex structures and high costs.

[0006] In one aspect, embodiments of the present disclosure provide a dimming glass, comprising: a first substrate; a light-adjusting layer disposed on one side of the first substrate; a light-sensing layer disposed on the side of the light-adjusting layer away from the first substrate; the light-sensing layer being electrically connected to the light-adjusting layer; and a second substrate disposed on the side of the light-sensing layer opposite to the light-adjusting layer.

[0007] On the other hand, embodiments of this disclosure also provide a method for preparing a dimming glass, comprising: providing a first substrate and a second substrate; forming a light-sensing layer on one side of the second substrate; forming a light-adjusting layer between the light-sensing layer and the first substrate; wherein the light-sensing layer is electrically connected to the light-adjusting layer.

[0008] Compared with the prior art, the dimming glass and its preparation method provided in this disclosure achieve at least the following beneficial effects:

[0009] The present disclosure provides a dimming glass and its preparation method. The dimming glass includes: a first substrate; a light-adjusting layer disposed on one side of the first substrate; a light-sensing layer disposed on the side of the light-adjusting layer away from the first substrate; the light-sensing layer and the light-adjusting layer are electrically connected; and a second substrate disposed on the side of the light-sensing layer opposite to the light-adjusting layer. This disclosure achieves the sensing of changes in ambient light intensity through at least the light-sensing layer, and transmits adjustment signals through the electrical connection between the light-sensing layer and the light-adjusting layer. This allows the light-adjusting layer to adjust the transmittance of the dimming glass, thereby achieving the purpose of automatically adjusting the transmittance of the dimming glass according to the brightness of the ambient light. Furthermore, since the light-sensing layer is integrated inside the dimming glass, it is compatible with the dimming glass preparation process, thereby reducing the structural complexity and cost of the dimming glass. Attached Figure Description

[0010] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0011] Figure 1 This is a schematic diagram of the cross-sectional structure of a dimming glass provided in an embodiment of this disclosure.

[0012] Figure 2 This is a schematic diagram of the cross-sectional structure of another dimming glass provided in an embodiment of this disclosure.

[0013] Figure 3 This is a schematic diagram of the cross-sectional structure of another dimming glass provided in this embodiment.

[0014] Figure 4 This is a schematic diagram of the cross-sectional structure of another dimming glass provided in this embodiment.

[0015] Figure 5 This is a schematic diagram of the cross-sectional structure of another dimming glass provided in this embodiment.

[0016] Figure 6 This is a schematic diagram of the cross-sectional structure of another dimming glass provided in this embodiment.

[0017] Figure 7 This is a schematic diagram of the cross-sectional structure of another dimming glass provided in this embodiment.

[0018] Figure 8 This is a schematic diagram of the cross-sectional structure of another dimming glass provided in this embodiment.

[0019] Figure 9This is a flowchart of the steps in a method for preparing a dimming glass according to an embodiment of the present disclosure.

[0020] Figure 10 yes Figure 9 A schematic diagram of the preparation method of medium-dimming glass.

[0021] Figure 11 yes Figure 9 The flowchart of step S120 of the method for preparing medium-dimming glass.

[0022] Figure 12 yes Figure 11 A schematic diagram of step S120.

[0023] Figure 13 yes Figure 9 The flowchart of step S130 of the method for preparing medium-dimming glass.

[0024] Figure 14 yes Figure 13 A schematic diagram of step S130.

[0025] Figure 15 yes Figure 9 A flowchart of another step in the preparation method of medium-dimming glass.

[0026] Figure 16 yes Figure 15 A schematic diagram of step S140.

[0027] Figure label:

[0028] 100 First substrate

[0029] 200 light modulation layer

[0030] 210 First Electrode Layer

[0031] 220 dimming unit layers

[0032] 221 Phase transition molecules

[0033] 230 Second electrode layer

[0034] 240 First Organic Layer

[0035] 250 Second organic layer

[0036] 260 encapsulation layer

[0037] 270 Supporting Structure

[0038] 271 Support Column

[0039] 272 Intercepting ball

[0040] 300 light-sensing layers

[0041] 310 photosensitive unit layer

[0042] 311 First Doped Layer

[0043] 312 Intrinsic Layer

[0044] 313 Second Doped Layer

[0045] 314 Electron Transport Layer

[0046] 315 Light Absorption Layer

[0047] 316 Hole Transport Layer

[0048] 320 Third electrode layer

[0049] 330 protective layer

[0050] 400 Second substrate

[0051] 500 controller Detailed Implementation

[0052] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0053] The use of terms such as "first," "second," and similar terms in the specific description does not indicate any order, quantity, or importance, but is merely used to distinguish different components. Furthermore, in the description of this disclosure, the terms "upper," "lower," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. These are for ease of description only and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0054] It should be noted that, unless otherwise specified, the embodiments of this disclosure and the features in different embodiments can be combined with each other.

[0055] Figure 1 This is a schematic diagram of the cross-sectional structure of a dimming glass provided in an embodiment of this disclosure.

[0056] On one hand, such as Figure 1As shown, an embodiment of this disclosure provides a dimming glass. The dimming glass includes: a first substrate 100, a light-adjusting layer 200, a light-sensing layer 300, and a second substrate 400. The light-adjusting layer 200 is disposed on one side of the first substrate 100. The light-sensing layer 300 is disposed on the side of the light-adjusting layer 200 away from the first substrate 100. The light-sensing layer 300 is electrically connected to the light-adjusting layer 200. The second substrate 400 is disposed on the side of the light-sensing layer 300 opposite to the light-adjusting layer 200.

[0057] Specifically, the first substrate 100 and the second substrate 400 provide support and protection for the light-adjusting layer 200 and the light-sensing layer 300. The first substrate 100 and the second substrate 400 can be rigid materials to prepare hard-dimming glass, or flexible materials to prepare soft-dimming glass. The materials of the first substrate 100 and the second substrate 400 can be the same to reduce the manufacturing cost of the dimming glass, or they can be different; this disclosure does not limit this.

[0058] Specifically, the light sensing layer 300 is used to sense changes in the intensity of ambient light to generate a modulation signal, which is then transmitted to the light modulation layer 200 via an electrical connection. Furthermore, the light sensing layer 300 can generate different photogenerated carriers based on the brightness of the ambient light; the stronger the light intensity, the more photogenerated carriers are generated, resulting in a stronger electrical signal, and thus a stronger modulation signal.

[0059] Specifically, the light modulation layer 200 is used to adjust the light transmittance of the dimming glass based on the light sensing layer 300's perception of ambient light. The light modulation layer 200 can receive modulation signals from the light sensing layer 300 via an electrical connection, and adjust the light transmittance of the dimming glass according to these signals. Furthermore, the light modulation layer 200 can change the light transmittance of the dimming glass based on the strength of the modulation signal.

[0060] This embodiment achieves the sensing of changes in ambient light intensity through at least the light sensing layer 300, and transmits adjustment signals through the light sensing layer 300 and the light adjustment layer 200, thereby enabling the light adjustment layer 200 to adjust the light transmittance of the dimming glass. This achieves the purpose of automatically adjusting the transmittance of the dimming glass according to the brightness of the ambient light. Furthermore, since the light sensing layer 300 is integrated inside the dimming glass, it is compatible with the dimming glass manufacturing process, thereby reducing the structural complexity of the dimming glass and reducing its cost.

[0061] Figure 2 This is a schematic diagram of the cross-sectional structure of another dimming glass provided in an embodiment of this disclosure.

[0062] In some embodiments, such as Figure 2As shown, the light adjustment layer 200 includes a first electrode layer 210, a dimming unit layer 220, and a second electrode layer 230. The dimming unit layer 220 is disposed on the side of the first electrode layer 210 away from the first substrate 100. The second electrode layer 230 is disposed on the side of the dimming unit layer 220 away from the first electrode layer 210. Specifically, the first electrode layer 210 and the second electrode layer 230 can be a single electrode plate. By applying voltage to the first electrode layer 210 and the second electrode layer 230, the dimming unit layer 220 located between the first electrode layer 210 and the second electrode layer 230 is driven, thereby changing the light transmittance of the dimming glass. Optionally, the voltage of the second electrode layer 230 can be 0V, so that the dimming unit layer 220 can be driven simply by adjusting the voltage of the first electrode layer 210, thereby changing the light transmittance of the dimming glass and reducing the difficulty for the light adjustment layer 200 to change the light transmittance of the dimming glass. That is, the first electrode layer 210 serves as the driving electrode of the light adjustment layer 200.

[0063] Figure 3 This is a schematic diagram of the cross-sectional structure of another dimming glass provided in this embodiment. Figure 4 This is a schematic diagram of the cross-sectional structure of another dimming glass provided in this embodiment.

[0064] In some embodiments, such as Figure 3 and Figure 4As shown, both the first electrode layer 210 and the second electrode layer 230 are made of indium tin oxide (ITO). The dimming unit layer 220 includes multiple phase change molecules 221, which may include liquid crystal molecules, ink molecules, or dye molecules. Specifically, the main characteristic of ITO is its combination of electrical conductivity and optical transparency. The first electrode layer 210 and the second electrode layer 230 may both be made of ITO, or other transparent conductive materials may be used; this disclosure does not limit this. The materials of the first electrode layer 210 and the second electrode layer 230 may be the same to reduce the manufacturing cost of the dimming glass, or they may be different; this disclosure does not limit this. The phase change molecules 221 can change their position or shape according to the voltage change between the first electrode layer 210 and the second electrode layer 230, thereby changing the transmittance of light passing through the phase change molecules 221, and thus changing the transmittance of the dimming glass. When the phase change molecule 221 is a liquid crystal molecule, when no voltage is applied between the first electrode layer 210 and the second electrode layer 230, the liquid crystal molecules are randomly oriented, and light is scattered when it passes through, resulting in a fogged or opaque state for the dimming glass. When a voltage is applied between the first electrode layer 210 and the second electrode layer 230, the liquid crystal molecules align in a certain direction under the influence of the electric field, allowing light to pass through smoothly, and the dimming glass becomes transparent, thus achieving the adjustment of light transmittance. When the phase change molecule 221 is an ink molecule, the ink molecules are in a dispersed state when no voltage is applied between the first electrode layer 210 and the second electrode layer 230, exhibiting strong absorption or scattering of visible light, causing the dimming glass to appear colored or have low light transmittance. When a voltage is applied between the first electrode layer 210 and the second electrode layer 230, the ink molecules aggregate or change orientation, weakening the absorption and scattering of light, increasing the light transmittance of the dimming glass, and achieving a change from dark to light color or transparent. When the phase change molecule 221 is a dye molecule, due to the electrochromic properties of the dye molecule, its molecular energy level structure or redox state changes under different voltages, resulting in a change in its absorption coefficient for light of a specific wavelength. Therefore, when there is no voltage between the first electrode layer 210 and the second electrode layer 230, the dye molecule absorbs light, and the light transmittance of the dimming glass is low, presenting a colored or dark state. However, when there is a voltage between the first electrode layer 210 and the second electrode layer 230, the absorption of light by the dye molecule is weakened, and the light transmittance of the dimming glass increases, thereby achieving reversible switching between transparency and color.

[0065] In some embodiments, such as Figure 3 and Figure 4As shown, the light-adjusting layer 200 further includes a first organic layer 240 and a second organic layer 250. The first organic layer 240 is disposed between the first electrode layer 210 and the dimming unit layer 220. The second organic layer 250 is disposed between the second electrode layer 230 and the dimming unit layer 220. Both the first organic layer 240 and the second organic layer 250 are made of polyimide. Specifically, the first organic layer 240 and the second organic layer 250 are used to align the phase change molecule 221. Taking the phase change molecule 221 as a liquid crystal molecule as an example, a polyimide film is coated on the upper and lower surfaces of the liquid crystal molecule, that is, the first organic layer 240 and the second organic layer 250 are coated, and after treatment such as rubbing or photolithography, a regular micro-oriented structure is formed on the surface of the polyimide film. The liquid crystal molecules interact with the surface of the polyimide film and align according to this orientation structure, thereby obtaining a stable and consistent initial orientation state. This process is called alignment. The purpose of alignment is to ensure that liquid crystal molecules can rotate and align in an orderly manner under the action of an external electric field, so as to achieve controllable switching between light scattering and transmission states, thereby changing the light transmittance of the dimming glass.

[0066] In some embodiments, such as Figure 3 and Figure 4 As shown, the light-adjusting layer 200 further includes an encapsulation layer 260 and multiple support structures 270. The encapsulation layer 260 is disposed between the first organic layer 240 and the second organic layer 250, and the dimming unit layer 220 is disposed within the surrounding area of ​​the encapsulation layer 260. The support structures 270 are disposed between the first organic layer 240 and the second organic layer 250, and are also disposed within the surrounding area of ​​the encapsulation layer 260. At least a portion of the support structures 270 is in surface contact with the first organic layer 240 and the second organic layer 250. Specifically, the encapsulation layer 260 is used to seal and accommodate the phase-change molecule 221. The support structures 270 are used to support the first organic layer 240 and the second organic layer 250 to ensure the uniformity and stability of the thickness of the space accommodating the phase-change molecule 221, i.e., the uniformity and stability of the dimming unit layer 220. Taking the phase-change molecule 221 as a liquid crystal molecule as an example, the encapsulation layer 260 is used to seal and fill the liquid crystal molecule into a cell. The support structures 270 are used to support the liquid crystal cell and its thickness. Optionally, a plurality of support structures 270 are arranged in an array between the first organic layer 240 and the second organic layer 250, which is not limited in this disclosure.

[0067] In some embodiments, such as Figure 3 and Figure 4As shown, the support structure 270 includes support pillars 271 or spacer balls 272. Specifically, taking the phase change molecule 221 as a liquid crystal molecule as an example, in order to ensure the uniformity and stability of the liquid crystal layer thickness, that is, the uniformity and stability of the dimming unit layer 220, support pillars 271 or spacer balls 272 are usually used for support. The support pillars 271 are generally formed by photolithography and are regularly distributed, which can precisely control the thickness of the liquid crystal cell; the spacer balls 272 are tiny spherical particles uniformly dispersed in the liquid crystal layer, which maintain a fixed distance between the upper and lower substrates through physical spacing. Both play a role in maintaining the uniformity of the liquid crystal layer thickness and avoiding local collapse or uneven optical performance, thereby ensuring the light transmission effect of the dimming glass.

[0068] Figure 5 This is a schematic diagram of the cross-sectional structure of another dimming glass provided in this embodiment.

[0069] In some embodiments, such as Figure 5 As shown, the light-sensing layer 300 includes a second electrode layer 230, a photosensitive unit layer 310, and a third electrode layer 320. The photosensitive unit layer 310 is disposed on the side of the second electrode layer 230 away from the dimming unit layer 220. The third electrode layer 320 is disposed on the side of the photosensitive unit layer 310 away from the second electrode layer 230. Specifically, the light-sensing layer 300 can share the second electrode layer 230 with the light-adjusting layer 200. That is, the second electrode layer 230 can be electrically connected to both the photosensitive unit layer 310 and the dimming unit layer 220 simultaneously. Accordingly, the voltage of the second electrode layer 230 during operation can be 0V, thus allowing the dimming unit layer 220 to be driven by adjusting only the voltage of the first electrode layer 210, and the photosensitive unit layer 310 to be driven by adjusting only the voltage of the third electrode layer 320. Furthermore, the third electrode layer 320 can be connected to a positive voltage during operation, specifically 4V. That is, the second electrode layer 230 serves as the negative electrode of the light-sensing layer 300, and the third electrode layer 320 serves as the positive electrode of the light-sensing layer 300. In addition, the photosensitive unit layer 310 is used to sense changes in ambient light intensity under the action of the second electrode layer 230 and the third electrode layer 320, so as to generate an adjustment signal, and transmit the adjustment signal to the light-modulation layer 200 through an electrical connection with the light-modulation layer 200.

[0070] Figure 6 This is a schematic diagram of the cross-sectional structure of another dimming glass provided in this embodiment.

[0071] In some embodiments, such as Figure 6As shown, the photosensitive unit layer 310 includes a first doped layer 311, an intrinsic layer 312, and a second doped layer 313. The intrinsic layer 312 is disposed on the side of the first doped layer 311 away from the second electrode layer 230. The second doped layer 313 is disposed on the side of the intrinsic layer 312 away from the first doped layer 311. Specifically, when the photosensitive unit layer 310 senses ambient light, the first doped layer 311 collects holes, serving as an incident window for light. The intrinsic layer 312 is used to achieve light absorption and carrier separation. The second doped layer 313 collects electrons, forming a current output, i.e., forming a modulation signal, used to change the transmittance of the dimming glass.

[0072] In some embodiments, the intrinsic layer 312 is made of amorphous silicon. Specifically, by using amorphous silicon as the material for the intrinsic layer 312 in this embodiment, the efficiency of light absorption and carrier separation can be improved, the speed and sensitivity of signal generation can be increased, and the speed and sensitivity of changing the transmittance of the dimming glass can be improved.

[0073] Figure 7 This is a schematic diagram of the cross-sectional structure of another dimming glass provided in this embodiment.

[0074] In some embodiments, such as Figure 7 As shown, the photosensitive unit layer 310 includes a hole transport layer 316, a light absorption layer 315, and an electron transport layer 314. The light absorption layer 315 is disposed on the side of the hole transport layer 316 away from the second electrode layer 230. The electron transport layer 314 is disposed on the side of the light absorption layer 315 away from the hole transport layer 316. Specifically, when the photosensitive unit layer 310 senses ambient light, the hole transport layer 316 collects holes, serving as an incident window for light. The light absorption layer 315 is used to achieve light absorption and carrier separation. The electron transport layer 314 collects electrons, forming a current output, i.e., forming a modulation signal, used to change the transmittance of the dimming glass.

[0075] In some embodiments, the material of the light-absorbing layer 315 includes one or a combination of at least two of perovskite, silicon, gallium arsenide, indium phosphide, zinc oxide, or titanium oxide. Specifically, by selecting the above-mentioned material for the light-absorbing layer 315, this embodiment can improve the efficiency of light absorption and carrier separation, increase the speed and sensitivity of signal generation, and improve the speed and sensitivity of changing the transmittance of the dimming glass.

[0076] In some embodiments, such as Figure 6 and Figure 7As shown, the dimming glass also includes a protective layer 330. The protective layer 330 is disposed between the second electrode layer 230 and the third electrode layer 320, and the photosensitive unit layer 310 is disposed within the surrounding area of ​​the protective layer 330. Specifically, it is used to provide protection for the photosensitive unit layer 310 and reduce leakage current of the photosensitive unit layer 310.

[0077] In some embodiments, the material of the protective layer 330 includes silicon nitride. In this embodiment, including silicon nitride in the material of the protective layer 330 can improve the strength of the protective layer 330, better protect the photosensitive unit layer 310, and reduce leakage current in the photosensitive unit layer 310.

[0078] In some embodiments, the material of the third electrode layer 320 includes indium tin oxide. Optionally, the material of the third electrode layer 320 may also be other transparent conductive materials, and this disclosure is not limited thereto. Further, the materials of the first electrode layer 210, the second electrode layer 230, and the third electrode layer 320 may be the same to reduce the manufacturing cost of the dimming glass.

[0079] Figure 8 This is a schematic diagram of the cross-sectional structure of another dimming glass provided in this embodiment.

[0080] In some embodiments, such as Figure 8 As shown, the dimming glass also includes a controller 500. The controller 500 is electrically connected to both the photosensitive unit layer 310 and the first electrode plate. Based on the photoelectric signal generated by the photosensitive unit layer 310, the controller 500 sends a control signal to the first electrode plate, which is used to adjust the voltage of the first electrode plate. Specifically, the photosensitive unit layer 310 is used to sense changes in ambient light intensity to generate a photoelectric signal, i.e., an adjustment signal. Both the photosensitive unit layer 310 and the light adjustment layer 200 are electrically connected to the controller 500, therefore the adjustment signal is first sent to the controller 500. Upon receiving the adjustment signal, the controller 500 sends a control signal to the first electrode plate of the light adjustment layer 200 to adjust the voltage of the first electrode plate. The change in voltage of the first electrode plate causes a corresponding change in the state of the phase change molecules 221, thereby changing the transmittance of the dimming glass.

[0081] In some embodiments, the materials of the first substrate 100 and the second substrate 400 include one or a combination of at least two of glass, polyimide (PI), or polyethylene terephthalate (PET). Optionally, the materials of the first substrate 100 and the second substrate 400 may also be other transparent materials, and this disclosure does not limit this.

[0082] In some embodiments, when the light transmittance of the dimming glass does not need to be automatically adjusted according to ambient light, it can also be manually adjusted.

[0083] Figure 9 This is a flowchart of the steps in a method for preparing a dimming glass according to an embodiment of the present disclosure. Figure 10 yes Figure 9 A schematic diagram of the preparation method of medium-dimming glass.

[0084] On the other hand, such as Figure 9 and Figure 10 As shown in the embodiments of this disclosure, a method for preparing a dimming glass is also provided. The method includes:

[0085] S110, providing a first substrate 100 and a second substrate 400;

[0086] S120, A light-sensing layer 300 is formed on one side of the second substrate 400;

[0087] S130, A light-modulating layer 200 is formed between the light-sensing layer 300 and the first substrate 100; wherein the light-sensing layer 300 and the light-modulating layer 200 are electrically connected.

[0088] It is worth noting that S110 to S130 are merely step numbers, used only for ease of reference and to avoid repetition. Unless otherwise specified, the above and subsequent step numbers do not restrict the order in which the steps of this method are implemented. In other embodiments, the order in which the above steps of this method are written and implemented can also be interchanged, and this disclosure does not impose any restrictions on this.

[0089] In this embodiment, the specific arrangement and technical effects of the first substrate 100, the second substrate 400, the light sensing layer 300, and the light adjustment layer 200 can be the same as those in the aforementioned dimming glass embodiment, and will not be repeated here.

[0090] This embodiment achieves the sensing of changes in ambient light intensity through at least the light sensing layer 300, and transmits adjustment signals through the light sensing layer 300 and the light adjustment layer 200, thereby enabling the light adjustment layer 200 to adjust the light transmittance of the dimming glass. This achieves the purpose of automatically adjusting the transmittance of the dimming glass according to the brightness of the ambient light. Furthermore, since the light sensing layer 300 is integrated inside the dimming glass, it is compatible with the dimming glass manufacturing process, thereby reducing the structural complexity of the dimming glass and reducing its cost.

[0091] Figure 11 yes Figure 9 The flowchart of step S120 of the method for preparing medium-dimming glass. Figure 12 yes Figure 11 A schematic diagram of step S120.

[0092] In some embodiments, such as Figure 11 and Figure 12 As shown, step S120, forming a light-sensing layer 300 on one side of the second substrate 400, includes:

[0093] S121, A third electrode layer 320 is formed on one side of the second substrate 400;

[0094] S122, A photosensitive unit layer 310 is formed on the side of the third electrode layer 320 away from the second substrate 400;

[0095] S123, A protective layer 330 is formed on the side of the third electrode layer 320 away from the second substrate 400; a photosensitive unit layer 310 is disposed in the surrounding area of ​​the protective layer 330;

[0096] S124. A second electrode layer 230 is formed on the side of the photosensitive unit layer 310 and the protective layer 330 away from the third electrode layer 320.

[0097] In this embodiment, the specific arrangement and technical effects of the third electrode layer 320, the photosensitive unit layer 310, the protective layer 330, and the second electrode layer 230 can be the same as those in the aforementioned dimming glass embodiment, and will not be repeated here.

[0098] Figure 13 yes Figure 9 The flowchart of step S130 of the method for preparing medium-dimming glass. Figure 14 yes Figure 13 A schematic diagram of step S130.

[0099] In some embodiments, such as Figure 11 and Figure 12 As shown, step S130, forming a light-modulating layer 200 between the light-sensing layer 300 and the first substrate 100, includes:

[0100] S131, a second organic layer 250 is formed on the side of the second electrode layer 230 away from the photosensitive unit layer 310;

[0101] S132, A support structure 270 is formed on the side of the second organic layer 250 away from the second electrode layer 230;

[0102] S133, an encapsulation layer 260 is formed on the side of the second organic layer 250 away from the second electrode layer 230; a support structure 270 is disposed in the surrounding area of ​​the encapsulation layer 260;

[0103] S134. A first electrode layer 210 is formed on one side of the first substrate 100;

[0104] S135, A first organic layer 240 is formed on the side of the first electrode layer 210 away from the first substrate 100;

[0105] S136. Fill the surrounding area of ​​the encapsulation layer 260 with the dimming unit layer 220, and bond the first organic layer 240 to the side of the encapsulation layer 260 away from the second organic layer 250.

[0106] In this embodiment, the specific arrangement and technical effects of the second organic layer 250, support structure 270, encapsulation layer 260, first electrode layer 210, first organic layer 240 and dimming unit layer 220 can be the same as those in the aforementioned dimming glass embodiment, and will not be repeated here.

[0107] Figure 15 yes Figure 9 A flowchart of another step in the preparation method of medium-dimming glass. Figure 16 yes Figure 15 A schematic diagram of step S140.

[0108] In some embodiments, such as Figure 11 and Figure 12 As shown, the preparation method of smart glass also includes:

[0109] S140. A controller 500 is provided; the controller 500 is electrically connected to the photosensitive unit layer 310 and the first electrode plate respectively; the controller 500 sends a control signal to the first electrode plate based on the photoelectric signal generated by the photosensitive unit layer 310, and the control signal is used to adjust the voltage of the first electrode plate.

[0110] In this embodiment, the specific configuration and technical effects of the controller 500 can be the same as those in the aforementioned embodiment of the dimming glass, and will not be repeated here.

[0111] In summary, as can be seen from the above embodiments, compared with the prior art, the dimming glass and its preparation method provided in this disclosure achieve at least the following beneficial effects:

[0112] The present disclosure provides a dimming glass and its preparation method. The dimming glass includes: a first substrate; a light-adjusting layer disposed on one side of the first substrate; a light-sensing layer disposed on the side of the light-adjusting layer away from the first substrate; the light-sensing layer and the light-adjusting layer are electrically connected; and a second substrate disposed on the side of the light-sensing layer opposite to the light-adjusting layer. This disclosure achieves the sensing of changes in ambient light intensity through at least the light-sensing layer, and transmits adjustment signals through the electrical connection between the light-sensing layer and the light-adjusting layer. This allows the light-adjusting layer to adjust the transmittance of the dimming glass, thereby achieving the purpose of automatically adjusting the transmittance of the dimming glass according to the brightness of the ambient light. Furthermore, since the light-sensing layer is integrated inside the dimming glass, it is compatible with the dimming glass preparation process, thereby reducing the structural complexity and cost of the dimming glass.

[0113] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of this disclosure and should not be construed as limiting the specific implementation of this disclosure to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this disclosure, and all such modifications and substitutions should be considered within the scope of protection of this disclosure.

Claims

1. A type of dimming glass, characterized in that, include: First substrate; A light-modulating layer is disposed on one side of the first substrate; A light-sensing layer is disposed on the side of the light-modulating layer away from the first substrate; the light-sensing layer is electrically connected to the light-modulating layer. The second substrate is disposed on the side of the light-sensing layer opposite to the light-modulating layer.

2. The dimming glass according to claim 1, characterized in that, The light modulation layer includes: First electrode layer; A dimming unit layer is disposed on the side of the first electrode layer away from the first substrate; The second electrode layer is disposed on the side of the dimming unit layer away from the first electrode layer.

3. The dimming glass according to claim 2, characterized in that, Both the first electrode layer and the second electrode layer are made of indium tin oxide. The dimming unit layer includes multiple phase change molecules, which include liquid crystal molecules, ink molecules, or dye molecules.

4. The dimming glass according to claim 2, characterized in that, The light modulation layer further includes: A first organic layer is disposed between the first electrode layer and the dimming unit layer; A second organic layer is disposed between the second electrode layer and the dimming unit layer; The materials of both the first organic layer and the second organic layer include polyimide.

5. The dimming glass according to claim 4, characterized in that, The light modulation layer further includes: An encapsulation layer is disposed between the first organic layer and the second organic layer, and the dimming unit layer is disposed within the surrounding area of ​​the encapsulation layer; Multiple support structures are disposed between the first organic layer and the second organic layer, and the support structures are disposed within the surrounding area of ​​the encapsulation layer; at least a portion of the support structures are in contact with the first organic layer and the second organic layer.

6. The dimming glass according to claim 5, characterized in that, The support structure includes support columns or spacer balls.

7. The dimming glass according to claim 2, characterized in that, The light-sensing layer includes: The second electrode layer; A photosensitive unit layer is disposed on the side of the second electrode layer away from the dimming unit layer; The third electrode layer is disposed on the side of the photosensitive unit layer away from the second electrode layer.

8. The dimming glass according to claim 7, characterized in that, The photosensitive unit layer includes: First doped layer; The intrinsic layer is disposed on the side of the first doped layer away from the second electrode layer; A second doped layer is disposed on the side of the intrinsic layer away from the first doped layer.

9. The dimming glass according to claim 8, characterized in that, The intrinsic layer is made of amorphous silicon.

10. The dimming glass according to claim 7, characterized in that, The photosensitive unit layer includes: Hole transport layer; A light-absorbing layer is disposed on the side of the hole transport layer away from the second electrode layer; An electron transport layer is disposed on the side of the light absorption layer away from the hole transport layer.

11. The dimming glass according to claim 10, characterized in that, The material of the light-absorbing layer includes one or a combination of at least two of perovskite, silicon, gallium arsenide, indium phosphide, zinc oxide, or titanium oxide.

12. The dimming glass according to claim 7, characterized in that, The dimming glass also includes: A protective layer is disposed between the second electrode layer and the third electrode layer, and the photosensitive unit layer is disposed within the surrounding area of ​​the protective layer.

13. The dimming glass according to claim 12, characterized in that, The material of the protective layer includes silicon nitride.

14. The dimming glass according to claim 7, characterized in that, The material of the third electrode layer includes indium tin oxide.

15. The dimming glass according to claim 7, characterized in that, The dimming glass also includes: The controller is electrically connected to both the photosensitive unit layer and the first electrode plate. The controller sends a control signal to the first electrode plate based on the photoelectric signal generated by the photosensitive unit layer. The control signal is used to adjust the voltage of the first electrode plate.

16. The dimming glass according to claim 1, characterized in that, The materials of the first substrate and the second substrate include one or a combination of at least two of glass, polyimide, or polyethylene terephthalate.

17. A method for preparing a switchable glass, characterized in that, include: Provide a first substrate and a second substrate; A light-sensing layer is formed on one side of the second substrate; A light-modulating layer is formed between the light-sensing layer and the first substrate; wherein the light-sensing layer is electrically connected to the light-modulating layer.

18. The method for preparing the dimming glass according to claim 17, characterized in that, The formation of a light-sensing layer on one side of the second substrate includes: A third electrode layer is formed on one side of the second substrate; A photosensitive unit layer is formed on the side of the third electrode layer away from the second substrate; A protective layer is formed on the side of the third electrode layer away from the second substrate; the photosensitive unit layer is disposed within the surrounding area of ​​the protective layer; A second electrode layer is formed on the side of the photosensitive unit layer and the protective layer away from the third electrode layer.

19. The method for preparing the dimming glass according to claim 18, characterized in that, The formation of a light modulation layer between the light-sensing layer and the first substrate includes: A second organic layer is formed on the side of the second electrode layer away from the photosensitive unit layer; A support structure is formed on the side of the second organic layer away from the second electrode layer; An encapsulation layer is formed on the side of the second organic layer away from the second electrode layer; the support structure is disposed within the surrounding area of ​​the encapsulation layer; A first electrode layer is formed on one side of the first substrate; A first organic layer is formed on the side of the first electrode layer away from the first substrate; A dimming unit layer is filled in the surrounding area of ​​the encapsulation layer, and the first organic layer is bonded to the side of the encapsulation layer away from the second organic layer.

20. The method for preparing the dimming glass according to claim 19, characterized in that, The method further includes: A controller is provided; the controller is electrically connected to the photosensitive unit layer and the first electrode plate respectively; the controller sends a control signal to the first electrode plate based on the photoelectric signal generated by the photosensitive unit layer, and the control signal is used to adjust the voltage of the first electrode plate.

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