CN215642149U - Light-adjusting glass and light-adjusting module - Google Patents

Abstract

The utility model provides a dimming glass and dimming module belongs to dimming glass technical field, and it can solve current dimming glass can only realize the problem of two kinds of modes of bright state and dark state. The dimming glass of the present disclosure includes: the device comprises a dimming unit, a touch layer and a control unit; the dimming unit includes: at least one sub dimming cell; each of the at least one sub dimming cells includes: the light-adjusting device comprises a first substrate, a second substrate and a light-adjusting functional layer, wherein the first substrate and the second substrate are oppositely arranged, and the light-adjusting functional layer is positioned between the first substrate and the second substrate; the dimming function layer is configured to adjust light transmittance under the driving of an electric field between the first substrate and the second substrate; the touch layer is positioned on the light incident side of the dimming unit and is configured to generate a sensing signal according to an input touch signal; the control unit is connected with the touch layer and is configured to generate a first dimming signal according to the sensing signal, so that the dimming function layer adjusts the light transmittance according to the first dimming signal.

Description

Light-adjusting glass and light-adjusting module

Technical Field

The utility model belongs to the technical field of dimming glass, concretely relates to dimming glass and dimming module.

Background

At present, the dimming glass is applied to the fields of buildings, vehicles and the like, and the dimming glass can change the light transmittance of a window, so that the window can be changed between a dark state and a bright state.

However, in the related art, the light-transmitting mode of the light-adjusting glass can only be changed by the peripheral mechanical structure and the like, long-term abrasion of the mechanical structure needs to be considered, then the action of controlling the mechanical structure cannot be adjusted in real time along with brightness of sunlight at any time, and moreover, the action time of controlling the mechanical structure each time is long, and the light-shielding requirement of people for timely and fast adjustment of a window cannot be met. On the other hand, the current dimming glass can only realize two modes of a bright state and a dark state, and although sunlight can be blocked, indoor personnel can not see outside scenery any more, so that the visual effect is greatly influenced.

SUMMERY OF THE UTILITY MODEL

The present disclosure is directed to at least one of the technical problems of the prior art, and provides a light glass and a light modulation module.

In a first aspect, embodiments of the present disclosure provide a light control glass, which includes: the device comprises a dimming unit, a touch layer and a control unit;

the dimming unit includes: at least one sub dimming cell; each of the at least one sub dimming cell includes: the light-dimming device comprises a first substrate, a second substrate and a light-dimming functional layer, wherein the first substrate and the second substrate are oppositely arranged, and the light-dimming functional layer is positioned between the first substrate and the second substrate; the dimming function layer is configured to adjust light transmittance under driving of an electric field between the first substrate and the second substrate;

the touch layer is positioned on the light incident side of the dimming unit, the orthographic projection of the touch layer on the first substrate covers the orthographic projection of the dimming function layer on the first substrate, and the touch layer is configured to generate a sensing signal according to an input touch signal;

the control unit is connected with the touch layer and configured to generate a first dimming signal according to the sensing signal, so that the dimming function layer adjusts the light transmittance according to the first dimming signal.

Optionally, the touch layer includes: a first touch electrode layer; the first touch electrode layer includes: a plurality of first touch electrodes arranged at intervals; the light control glass further comprises: a plurality of first touch signal lines;

one of the first touch electrodes is connected to the control unit through one of the first touch signal lines.

Optionally, the touch layer includes: the second touch electrode layer and the third touch electrode layer are oppositely arranged; the second touch electrode layer includes: a plurality of second touch electrodes arranged at intervals; the third touch electrode layer includes: a plurality of third touch electrodes arranged at intervals; the light control glass further comprises: a second touch signal line and a third touch signal line;

one of the second touch control electrodes is connected with the control unit through one of the second touch control signal lines; one of the third touch electrodes is connected to the control unit through one of the third touch signal lines.

Optionally, the second touch electrode and the third touch electrode are both strip-shaped electrodes; the extending direction of the second touch electrode is intersected with the extending direction of the third touch electrode.

Optionally, the number of the sub dimming cells is one; the first substrate includes: the first electrode layer is positioned on the first substrate;

the second substrate includes: the second electrode layer is positioned on one side, close to the first substrate, of the second substrate;

the dimming function layer includes: dye liquid crystal.

Optionally, the dimming function layer further comprises: a chiral additive.

Optionally, the number of the sub dimming cells is multiple; a plurality of sub dimming cells are arranged in a stacked manner; the first substrate includes: a third substrate and a third electrode layer on the third substrate;

the second substrate includes: the fourth electrode layer is positioned on one side, close to the third substrate, of the fourth substrate;

the dimming function layer includes: dye liquid crystal.

Optionally, the sub-dimming unit further comprises: the first alignment layer is positioned on one side, away from the third substrate, of the third electrode layer, and the second alignment layer is positioned on one side, away from the fourth substrate, of the fourth electrode layer; the pretilt angles of the first alignment layer and the second alignment layer are the same;

the pretilt angle of the first alignment layer and the second alignment layer of one of the two adjacent sub dimming cells is different from the pretilt angle of the first alignment layer and the second alignment layer of the other sub dimming cell by 90 degrees.

Optionally, the dimming module further comprises: at least one light sensor arranged on the light incident side of the light adjusting unit;

the at least one light sensor is connected with the control unit and is configured to generate an electrical signal according to an incident light signal;

the control unit is further configured to generate a second dimming signal according to the electrical signal, so that the dimming function layer adjusts the light transmittance according to the second dimming signal.

In a second aspect, an embodiment of the present disclosure provides a light modulation module including the light modulation glass as provided in the above.

Optionally, the dimming module further comprises: the protective film comprises a first protective layer, a second protective layer and frame sealing glue, wherein the first protective layer and the second protective layer are arranged oppositely, and the frame sealing glue is positioned between the first protective layer and the second protective layer;

the light modulation glass is positioned between the first protective layer and the second protective layer;

the frame sealing glue surrounds the periphery of the light adjusting glass.

Optionally, the dimming module further comprises: a metal frame positioned between the first protective layer and the second protective layer;

the metal frame is positioned on one side of the frame sealing glue close to the dimming glass.

Optionally, the first protective layer comprises: a layer of toughened glass; the second protective layer includes: multilayer toughened glass arranged in a laminated manner;

and a polyvinyl butyral layer is arranged between the adjacent toughened glass.

Optionally, the dimming module further comprises: an inert gas;

and the inert gas is filled in a hollow structure formed by the first protective layer, the second protective layer and the metal frame.

Optionally, the inert gas comprises: and argon gas.

Drawings

Fig. 1 is a schematic structural diagram of a light control glass according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a touch layer according to an embodiment of the disclosure;

fig. 3 is a schematic structural diagram of another touch layer provided in the present disclosure;

fig. 4 is a schematic structural diagram of another light control glass provided in the embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of another light control glass provided in the embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a dimming module according to an embodiment of the present disclosure.

Detailed Description

For a better understanding of the technical aspects of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In a first aspect, an embodiment of the present disclosure provides a light control glass, and fig. 1 is a schematic structural diagram of the light control glass provided in the embodiment of the present disclosure, as shown in fig. 1, the light control glass 1 includes: the dimming unit 10, the touch layer 20 and the control unit 30; the dimming unit 10 includes: at least one sub dimming cell; each of the at least one sub dimming cells includes: a first substrate 101 and a second substrate 102 disposed opposite to each other, and a dimming function layer 103 located between the first substrate 101 and the second substrate 102; the dimming function layer 103 is configured to adjust light transmittance under electric field driving between the first substrate 101 and the second substrate 102; the touch layer 20 is located on the light incident side of the dimming unit 10, and an orthographic projection of the touch layer 20 on the first substrate 101 covers an orthographic projection of the dimming function layer 103 on the first substrate 101, and is configured to output a sensing signal according to an input touch signal; the control unit 30 is connected to the touch layer 20 and configured to generate a first dimming signal according to the sensing signal, so that the dimming function layer 103 adjusts the light transmittance according to the first dimming signal.

In the light control glass 1 provided by the embodiment of the present disclosure, an electric field may be formed between the first substrate 101 and the second substrate 102, and the light control function layer 103 may adjust transmittance of light under driving of the electric field formed by the first substrate 101 and the second substrate 102, so as to implement a light control function. Meanwhile, the touch layer 20 is disposed on the light incident side of the dimming unit 10, and a user can perform a touch operation on the touch layer 20, that is, input a touch signal, so that the touch layer 20 generates a sensing signal according to the sensing signal. The control unit 30 may generate a first dimming signal according to the received sensing signal, where the first dimming signal may include a user requirement for light transmittance, for example, the user may require that the light transmittance of the dimming functional layer 103 is 30% or 20%, and the user may touch the touch layer 20 or slide on the touch layer 20 for a certain distance, so that the light transmittance of the dimming functional layer 103 is adjusted to be 30% or 20%, and the like, thereby implementing the touch dimming function. In addition, the orthographic projection of the touch layer 20 on the first substrate 101 covers the orthographic projection of the dimming function layer 103 on the first substrate 101, that is, the areas of the touch layer 20 and the dimming function layer 103 are substantially the same or the area of the touch layer 20 is slightly larger than that of the dimming function layer, so that a user can perform touch operation at any position of the dimming glass. It can be seen that the dimming glass 1 provided by the embodiment of the disclosure can realize a touch dimming function without depending on an external mechanical structure, and can meet the requirement of a user on real-time quick adjustment of light transmittance. Meanwhile, the voltages on the first substrate 101 and the second substrate 102 can be adjusted according to the first dimming signal generated by the control unit 30 to change the electric field between the two, so that the electric field between the two is continuously changed or discontinuously changed, and thus the dimming function layer 103 can realize various different light transmittances, so that the dimming glass 1 can block light without affecting the user to watch the outside scenery indoors, and the user experience can be improved.

If the light control unit 10 of the light control glass has a plurality of sub light control units, the sub light control units may be stacked, and the touch layer 20 may be disposed on the light incident side of the outermost sub light control unit. The outermost sub dimming cell refers to a sub dimming cell to which a plurality of sub dimming cells are first irradiated with light. If the light modulation unit 10 of the light modulation glass has one sub light modulation unit, the touch layer 103 may be disposed between any two film layers of the second substrate 102 of the sub light modulation unit or at the outermost side of the sub light modulation unit, so that the touch signal may be received more accurately, and the touch sensitivity may be improved.

Fig. 2 is a schematic structural diagram of a touch layer according to an embodiment of the disclosure, and as shown in fig. 2, the touch layer 20 includes: a first touch electrode layer 201; the first touch electrode layer 201 includes: a plurality of first touch electrodes 2011 arranged at intervals; the light control glass 1 further includes: a plurality of first touch signal lines 210; a first touch electrode 2011 is connected to the control unit 30 through a first touch signal line 210.

In the embodiment of the disclosure, the touch layer 30 adopts a self-contained touch structure, each first touch signal line 210 is connected between the control unit 30 and a corresponding first touch electrode 2011, each first touch signal line 210 is used to drive one first touch electrode 2011, when a user touches a certain first touch electrode 2011, a touch signal with a certain capacitance value is generated between the first touch electrode 2011 and a finger, the first touch signal line 210 connected to the first touch electrode 2011 transmits the touch signal on the first touch electrode 2011 to the control unit 30, the control unit 30 is preset with a dimming action corresponding to each first touch electrode 2011 when being touched, the control unit 30 can adjust the light transmittance of the dimming functional layer 2011 according to the received touch signal, and realizing the touch dimming function.

Fig. 3 is a schematic structural diagram of another touch layer provided in the embodiment of the disclosure, and as shown in fig. 3, the touch layer 20 includes: the second touch electrode layer 202 and the third touch electrode layer 203 are oppositely arranged; the second touch electrode layer 202 includes: a plurality of second touch electrodes 2021 disposed at intervals; the third touch electrode layer 203 includes: a plurality of third touch electrodes 2031 disposed at intervals; the light control glass further comprises: a second touch signal line 220 and a third touch signal line 230; a second touch electrode 2021 is connected to the control unit 30 via a second touch signal line 220; a third touch electrode 2031 is connected to the control unit 30 via a third touch signal line 230.

In the embodiment of the disclosure, the touch layer 30 adopts a mutual capacitance type touch structure, each second touch signal line 220 is connected between the control unit 30 and a corresponding second touch electrode 2021, each third touch signal line 230 is connected between the control unit 30 and a corresponding third touch electrode 2031, each second touch signal line 220 and each third touch signal line 230 are respectively used for driving one second touch electrode 2021 and one third touch electrode 2031, when a user touches a certain second touch electrode 2021, a touch signal with a capacitance value changing between the second touch electrode 2021 and the corresponding third touch electrode 2021 is transmitted to the control unit 30, the second touch signal line 220 connected to the second touch electrode 2021 and the third touch signal line 230 connected to the third touch electrode 2031 transmit the touch signal 2031 to the control unit 30, and the control unit 30 is preset with a corresponding dimming action when each second touch electrode 2021 and each third touch electrode 2031 are touched, the control unit 30 can adjust the light transmittance of the light modulation function layer 103 according to the preset light modulation actions corresponding to the second touch electrode 2021 and the third touch electrode 2031 according to the received touch signal, so as to implement the touch light modulation function.

In some embodiments, the second touch electrode 2021 and the third touch electrode 2031 are both strip electrodes; the extending direction of the second touch electrode 2021 and the extending direction of the third touch electrode 2031 intersect.

The second touch electrode 2021 and the third touch electrode 2031 are both strip-shaped electrodes; the extending direction of the second touch electrode 2021 intersects the extending direction of the third touch electrode 2031, and each facing position between the two can form a self-contained touch structure, so that a plurality of self-contained touch structures can be formed, the position where touch occurs can be accurately identified, and thus, touch signals can be received more accurately, and the touch sensitivity can be improved. In a specific example, the extending direction of the second touch electrode 2021 is perpendicular to the extending direction of the third touch electrode 2031, which can facilitate the preparation of the second touch electrode 2021 and the third touch electrode 2031.

In some embodiments, the number of sub dimming cells is one; the first substrate 101 includes: a first substrate 1011, and a first electrode layer 1012 on the first substrate 1011; the second substrate 102 includes: a second substrate 1021 and a second electrode layer 1022 disposed on a side of the second substrate 1021 near the first substrate 1011; the dimming function layer 103 includes: dye liquid crystal.

In the light control glass provided in this embodiment, the light control function layer 103 may include various types of light control media, for example, the material of the light control function layer 103 may be dye liquid crystal. The dye liquid crystal may specifically include liquid crystal molecules and dichroic dye molecules. Dichroic dye molecules have dichroic properties and only absorb light in the incident light parallel to the long axis of the dye. Specifically, in the present embodiment, the light control glass is used as an example to drive the liquid crystal molecules in the TN mode, that is, the display mode is the normally white mode. In practical applications, polarizers are respectively attached to a side of the first substrate 1011 facing away from the second substrate 1021 and a side of the second substrate 1021 facing away from the first substrate 1011, and polarization axes of the two polarizers are perpendicular to each other and orthogonal to each other by 90 degrees. Further, a spacer (not shown) is disposed between the first substrate 1011 and the second substrate 1021, the spacer supports a certain distance between the first substrate 101 and the second substrate 102 to form a liquid crystal cell for accommodating liquid crystal molecules, the cell thickness of the liquid crystal cell can range from 2 micrometers (μm) to 4 μm, the type of the spacer can be various, such as commonly used transparent ps (photo spacer) or bs (ball spacer), etc., but not limited thereto, and the outside of the liquid crystal cell can be sealed by UV curing or heat curing using a sealant with silicon balls or plastic balls added thereto, the first substrate 1011 and the second substrate 1021 can be made of glass, the first electrode layer 1012 and the second electrode layer 1022 can be made of ITO transparent conductive film layers, alignment layers can be disposed on the first electrode layer 1012 side close to the second electrode layer 1022 and the second electrode layer 1012 side close to the first electrode layer respectively, the two alignment layers need to form a certain pretilt angle through a Rubbing process so as to control the toppling direction of liquid crystal molecules, the Rubbing directions of the two alignment layers are also perpendicular to each other to form 90 degrees, so that the liquid crystal molecules can form a 90-degree torsion angle in the box, and the Rubbing directions of the two alignment layers need to be parallel to the polarizing axis direction of the polarizer corresponding to the alignment layers. When no voltage is applied to the first electrode layer 1012 and the second electrode layer 1022, when external light enters from the polarizer attached to the second substrate 1021, the polarization direction of the formed polarized light can be parallel to the long axis direction of the liquid crystal molecules on the second substrate 1021 side, the polarized light is optically rotated in the liquid crystal molecules, when the light reaches the polarizer attached to the first substrate 1011, the polarization direction is rotated by 90 degrees, and after the light exits from the first substrate 1011, the polarization direction of the light is exactly parallel to the polarization direction of the polarizer attached to the first substrate 1011, the light can smoothly pass through the polarized light, and the light can be transmitted to the maximum, so the light-adjusting glass 1 is characterized as a bright state. When the first electrode layer 1012 and the second electrode layer 1022 start to apply voltage, the long axis direction of the liquid crystal molecules gradually changes from the direction parallel to the first substrate 1011 to the direction perpendicular to the first substrate 1011, at this time, when light enters from the polarizer attached to the second substrate 1021, the polarized light cannot complete optical rotation, the polarization direction of the emergent light and the polarization axis of the polarizer at the emergent position form a certain angle, and according to the Malus law, when an included angle of 90 degrees is formed between the polarization axes, the light transmittance is the lowest. As the voltages of the first electrode layer 1012 and the second electrode layer 1022 rise, the electric field intensity between the two increases, the degree of liquid crystal molecule deflection increases, the angle formed by the polarization direction of the outgoing light and the polarization axis of the polarizer at the outgoing position also changes gradually from 0 degree to 90 degrees, and the light transmittance of the corresponding entire light control glass also changes gradually from the brightest to the darkest. Through tests, the light transmittance of the whole light control glass 1 ranges from 0.1% to 36%, and the driving voltage of the first electrode layer 1012 and the second electrode layer 1022 is about 5V.

It should be noted that the light control glass provided in this embodiment may also adopt modes such as ADS, IPS, etc. to drive liquid crystal molecules, which is not limited herein, and the number and the arrangement position of the electrodes generating an electric field between the first substrate 101 and the second substrate 102 are changed accordingly in different modes, for example, in the ADS mode, the first electrode layer 1012 and the second electrode layer 1022 may be both arranged on the same substrate, which is not limited herein. In this embodiment, the liquid crystal molecules are driven in a TN mode.

Fig. 4 is a schematic structural diagram of another dimming glass provided in the embodiment of the present disclosure, and as shown in fig. 4, the dimming function layer 103 further includes: a chiral additive.

In the embodiment of the present disclosure, a chiral agent needs to be added to the dye liquid crystal, so that the liquid crystal molecules in the dye liquid crystal can be spirally arranged in a left-handed or right-handed manner along the optical rotation axis perpendicular to the first substrate 1011. After the visible light enters the liquid crystal molecules, the light is optically rotated along the spiral liquid crystal molecules, and because the absorption axis of the dichroic dye is parallel to the long axis of the liquid crystal molecules, the visible light is also absorbed by the dichroic dye while being optically rotated. Meanwhile, the rotation angle of the liquid crystal molecules is generally between 180 degrees and 360 degrees, and the purpose is to enable the dichroic dye to rotate as much as possible, so that the dichroic dye can absorb light rays at various angles as much as possible, and the light transmittance is further reduced. Meanwhile, a polaroid is not needed, and the influence of environments such as high temperature and the like on the polaroid is avoided, so that the service life of the whole dimming glass 1 can be prolonged. It should be noted that the structure of the light control glass 1 shown in fig. 4 is substantially the same as the structure of the light control glass 1 shown in fig. 3, an included angle between two alignment layers in the light control glass provided in the embodiment of the present disclosure needs to be designed correspondingly with reference to a rotation angle required by liquid crystal molecules, and when the rotation angle of the liquid crystal molecules is 180 degrees, the alignment directions of the two alignment layers may be parallel in the same direction or in the opposite direction. In the case where no voltage is applied to the first electrode layer 1012 and the second electrode layer 1022, the dye liquid crystal molecules are almost in a state of being perpendicular to the first substrate 1011, and the light control glass 1 is characterized as a bright state. When the first electrode layer 1012 and the second electrode layer 1022 start to apply voltage, the dye liquid crystal molecules tilt towards the pre-tilt direction of the alignment layer and spiral along the spiral axis, the more the voltage is, the more thoroughly the liquid crystal molecules tilt, the greater the light absorption degree is, the lower the light transmittance is, and at this time, the dimming glass 1 is characterized as a dark state. Through tests, the dark state transmittance of the dimming glass 1 provided by the embodiment of the disclosure is about 6%, the bright state can maximally reach about 50%, the dimming requirement of a window in the field of buildings can be basically met, and the larger contrast and the darker transmittance cannot be realized.

Fig. 5 is a schematic structural view of another dimming glass provided in the embodiment of the present disclosure, and as shown in fig. 5, the number of sub dimming units is multiple; a plurality of sub dimming cells are arranged in a stacked manner; the first substrate 101 includes: a third substrate 1013 and a third electrode layer 1014 over the third substrate; the second substrate 102 includes: fourth substrate 1023 and fourth electrode layer 1024 on the side of fourth substrate 1023 close to third substrate 1013; the dimming function layer 103 includes: dye liquid crystal. The sub dimming cell further includes: a first alignment layer 104 on the side of the third electrode layer 1014 facing away from the third substrate 1013 and a second alignment layer 105 on the side of the fourth electrode layer 1024 facing away from the fourth substrate 1023; the pretilt angles of the first alignment layer 104 and the second alignment layer 105 are the same; the pretilt angle of the first alignment layer 104 and the second alignment layer 105 of one of the two adjacent sub-dimming cells is different from the pretilt angle of the first alignment layer 104 and the second alignment layer 105 of the other sub-dimming cell by 90 degrees.

In the embodiment of the present disclosure, two sub-dimming units are taken as an example for explanation, the dimming function layers of the two sub-dimming units are both made of dye liquid crystal, the dimming function is realized by driving the dichroic dye to rotate through liquid crystal molecules under different voltages, when the light absorption axis of the dichroic dye and the light direction present different angles, the absorption degrees of the dichroic dye to the light are different, and then the transmittances of the light are also different. The first alignment layer 104 and the second alignment layer 105 in each sub-dimming cell are oriented in anti-parallel or in parallel with each other in the forward direction, and the pretilt angle is between 85 and 89 degrees, but the pretilt angle of the first alignment layer 104 and the second alignment layer 105 in one of the two sub-dimming cells is different from the pretilt angle of the first alignment layer 104 and the second alignment layer 105 in the other sub-dimming cell by 90 degrees. When no voltage is applied to the third electrode layer 1014 and the fourth electrode layer 1024, the liquid crystal molecules are almost in a state of being perpendicular to the third substrate 1013, and since the light absorption axis of the dichroic dye molecules is parallel to the light incident direction, the light transmittance is the largest, and the light control glass 1 is characterized as a bright state. When a voltage is applied to the third electrode layer 1014 and the fourth electrode layer 1024, the dichroic dye molecules start to gradually shift from a state perpendicular to the third substrate 1013 to a state parallel to the third substrate 1013 along with the liquid crystal molecules, when the light passes through the first sub-dimming cell, the dichroic dye molecules of the first sub-dimming cell can effectively block the light parallel to the light absorption axis of the dichroic dye molecules, but the light blocking is limited to the light perpendicular to the light absorption axis of the dichroic dye molecules, and the light will be emitted through the first sub-dimming cell and enter the second sub-dimming cell, because the pretilt angle of the first alignment layer 104 and the second alignment layer 105 of one of the two sub-dimming cells is 90 degrees different from the pretilt angle of the first alignment layer 104 and the second alignment layer 105 of the other sub-dimming cell, the polarization direction of the partially polarized light which is not blocked by the first sub-dimming cell is exactly parallel to the axis of the dichroic dye molecules of the second sub-dimming cell In this way, a darker shading effect can be achieved, wherein the light control glass 1 is characterized as a dark state. Through tests, the dark state transmittance of the dimming glass 1 provided by the embodiment of the disclosure is about 0.5%, the maximum bright state can reach about 35%, and the dimming requirement of a window in the building field can be basically met. It should be noted that, the adjacent third substrate 1013 and second substrate 1024 in the two sub-dimming units can be multiplexed with each other, and in the practical application process, only one of the two adjacent third substrates 1013 and second substrates 1024 can be remained, so as to reduce the thickness of the dimming glass 1 and reduce the manufacturing cost.

In some embodiments, the privacy glass further comprises: at least one light sensor (not shown) disposed at the light incident side of the dimming unit 10; at least one light sensor is connected to the control unit 30, configured to generate an electrical signal according to the incident light signal; the control unit 30 is further configured to generate a second dimming signal according to the electrical signal, so that the dimming function layer 103 adjusts the light transmittance according to the second dimming signal.

It should be noted that in some application scenarios, the dimming glass is far away from the user, for example, a daylighting roof in a large mall, and the device is required to have a function of automatically adjusting according to the actual light intensity. In the disclosed embodiment, the light control glass further comprises: the light ray sensor, the stronger the light ray, the larger the voltage output by the light ray sensor, set a trigger threshold for the intensity of different solar rays, when the voltage generated by the light ray intensity is within a certain threshold range, maintain the corresponding output voltage under the threshold, and when the light ray intensity rises to the point that the voltage of the light ray sensor exceeds the threshold, the control unit 30 can output a control signal to improve the driving voltage of the dimming functional layer 103, so as to achieve the purpose of dimming the dimming functional layer, otherwise, when the light ray intensity is weakened, the control unit 30 can output a control signal to reduce the driving voltage of the dimming functional layer 103, so as to achieve the purpose of dimming the dimming functional layer.

In a second aspect, the disclosed embodiments provide a dimming module including a dimming glass as provided above. Fig. 6 is a schematic structural diagram of a dimming module according to an embodiment of the present disclosure, and as shown in fig. 6, the dimming module includes the above dimming glass, and further includes: the sealant comprises a first protective layer 601, a second protective layer 602, and a sealant 603 between the first protective layer 601 and the second protective layer 602; the light control glass is located between the first protective layer 601 and the second protective layer 602; the sealant 603 surrounds the periphery of the light-adjusting glass.

The frame sealing adhesive 603 can bond the first protective layer 601 and the second protective layer 602 to form a hollow structure, and the light-adjusting glass is accommodated therein to protect the light-adjusting glass, so that the light-adjusting glass can meet the outdoor severe environment,

in some embodiments, as shown in fig. 6, the dimming module further includes: a metal frame 604 between the first protective layer 601 and the second protective layer 602; the metal frame 604 is located on one side of the frame sealing glue 603 close to the light-adjusting glass.

A metal frame 604, which is generally an aluminum frame, may be further disposed between the first protective layer 601 and the second protective layer 602, the aluminum frame may form a sealed environment around the dimming glass for one turn, the aluminum frame is bonded to the first protective layer 601 and the second protective layer 602 by a glass sealant, and the thickness of the aluminum frame is the hollow height of the hollow structure.

In some embodiments, the first protective layer 601 includes: a layer of toughened glass; the second protective layer 602 includes: multilayer toughened glass arranged in a laminated manner; a polyvinyl butyral layer 605 is disposed between adjacent tempered glass.

The second protective layer 602 mainly faces the outdoor environment, because the second protective layer 602 is composed of multiple layers of toughened glass and a full-face polyvinyl butyral ester layer sandwiched therebetween in consideration of the influence of ultraviolet irradiation in sunlight on the functional layer, and the polyvinyl butyral ester layer mainly serves to bond two pieces of toughened glass to play a role in safety protection and blocking ultraviolet light in outdoor sunlight.

In some embodiments, the dimming module further comprises: an inert gas; the inert gas is filled in the hollow structure formed by the first protection layer 601, the second protection layer 602 and the frame sealing glue 603. The inert gas may specifically include: and argon gas.

The argon gas is used as inert gas, has good heat insulation performance, and can avoid the influence of higher temperature on the performance of a dimming function layer in the dimming glass.

It is to be understood that the above embodiments are merely exemplary embodiments that are employed to illustrate the principles of the present disclosure, and that the present disclosure is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the disclosure, and these are to be considered as the scope of the disclosure.

Claims (15)

1. A light control glass, characterized in that, light control glass includes: the device comprises a dimming unit, a touch layer and a control unit;

the dimming unit includes: at least one sub dimming cell; each of the at least one sub dimming cell includes: the light-dimming device comprises a first substrate, a second substrate and a light-dimming functional layer, wherein the first substrate and the second substrate are oppositely arranged, and the light-dimming functional layer is positioned between the first substrate and the second substrate; the dimming function layer is configured to adjust light transmittance under driving of an electric field between the first substrate and the second substrate;

the touch layer is positioned on the light incident side of the dimming unit, the orthographic projection of the touch layer on the first substrate covers the orthographic projection of the dimming function layer on the first substrate, and the touch layer is configured to generate a sensing signal according to an input touch signal;

the control unit is connected with the touch layer and configured to generate a first dimming signal according to the sensing signal, so that the dimming function layer adjusts the light transmittance according to the first dimming signal.

2. The privacy glass of claim 1, wherein the touch layer comprises: a first touch electrode layer; the first touch electrode layer includes: a plurality of first touch electrodes arranged at intervals; the light control glass further comprises: a plurality of first touch signal lines;

one of the first touch electrodes is connected to the control unit through one of the first touch signal lines.

3. The privacy glass of claim 1, wherein the touch layer comprises: the second touch electrode layer and the third touch electrode layer are oppositely arranged; the second touch electrode layer includes: a plurality of second touch electrodes arranged at intervals; the third touch electrode layer includes: a plurality of third touch electrodes arranged at intervals; the light control glass further comprises: a second touch signal line and a third touch signal line;

one of the second touch control electrodes is connected with the control unit through one of the second touch control signal lines; one of the third touch electrodes is connected to the control unit through one of the third touch signal lines.

4. The light control glass of claim 3, wherein the second touch electrode and the third touch electrode are both strip electrodes; the extending direction of the second touch electrode is intersected with the extending direction of the third touch electrode.

5. The light control glass of claim 1, wherein the number of the sub light control units is one; the first substrate includes: the first electrode layer is positioned on the first substrate;

the second substrate includes: the second electrode layer is positioned on one side, close to the first substrate, of the second substrate;

the dimming function layer includes: dye liquid crystal.

6. A privacy glass as claimed in claim 5, wherein the privacy function layer further comprises: a chiral additive.

7. The dimming glass of claim 1, wherein the number of the sub dimming cells is plural; a plurality of sub dimming cells are arranged in a stacked manner; the first substrate includes: a third substrate and a third electrode layer on the third substrate;

the second substrate includes: the fourth electrode layer is positioned on one side, close to the third substrate, of the fourth substrate;

the dimming function layer includes: dye liquid crystal.

8. The light control glass of claim 7, wherein the sub light control unit further comprises: the first alignment layer is positioned on one side, away from the third substrate, of the third electrode layer, and the second alignment layer is positioned on one side, away from the fourth substrate, of the fourth electrode layer; the pretilt angles of the first alignment layer and the second alignment layer are the same;

the pretilt angle of the first alignment layer and the second alignment layer of one of the two adjacent sub dimming cells is different from the pretilt angle of the first alignment layer and the second alignment layer of the other sub dimming cell by 90 degrees.

9. A light control glass as defined in claim 1, further comprising: at least one light sensor arranged on the light incident side of the light adjusting unit;

the at least one light sensor is connected with the control unit and is configured to generate an electrical signal according to an incident light signal;

the control unit is further configured to generate a second dimming signal according to the electrical signal, so that the dimming function layer adjusts the light transmittance according to the second dimming signal.

10. A light control module comprising the light control glass of any one of claims 1-9.

11. The dimming module of claim 10, further comprising: the protective film comprises a first protective layer, a second protective layer and frame sealing glue, wherein the first protective layer and the second protective layer are arranged oppositely, and the frame sealing glue is positioned between the first protective layer and the second protective layer;

the light modulation glass is positioned between the first protective layer and the second protective layer;

the frame sealing glue surrounds the periphery of the light adjusting glass.

12. The dimming module of claim 11, further comprising: a metal frame positioned between the first protective layer and the second protective layer;

the metal frame is positioned on one side of the frame sealing glue close to the dimming glass.

13. The dimming module of claim 11, wherein the first protective layer comprises: a layer of toughened glass; the second protective layer includes: multilayer toughened glass arranged in a laminated manner;

and a polyvinyl butyral layer is arranged between the adjacent toughened glass.

14. The dimming module of claim 12, further comprising: an inert gas;

and the inert gas is filled in a hollow structure formed by the first protective layer, the second protective layer and the metal frame.

15. The dimming module of claim 14, wherein the inert gas comprises: and argon gas.

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