WO2021115246A1 - 调光玻璃及玻璃模组 - Google Patents

调光玻璃及玻璃模组 Download PDF

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Publication number
WO2021115246A1
WO2021115246A1 PCT/CN2020/134453 CN2020134453W WO2021115246A1 WO 2021115246 A1 WO2021115246 A1 WO 2021115246A1 CN 2020134453 W CN2020134453 W CN 2020134453W WO 2021115246 A1 WO2021115246 A1 WO 2021115246A1
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Prior art keywords
substrate
liquid crystal
dimming
crystal layer
electrode
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Ceased
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PCT/CN2020/134453
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English (en)
French (fr)
Inventor
武晓娟
赵志强
王家星
袁洪亮
王建
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BOE Technology Group Co Ltd
Beijing BOE Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Beijing BOE Optoelectronics Technology Co Ltd
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Priority to EP20864334.6A priority Critical patent/EP4075190A4/en
Priority to US17/280,899 priority patent/US20220100033A1/en
Publication of WO2021115246A1 publication Critical patent/WO2021115246A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133331—Cover glasses
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G02F1/133536—Reflective polarizers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B2009/2464—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds featuring transparency control by applying voltage, e.g. LCD, electrochromic panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13725—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on guest-host interaction
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/1391—Bistable or multi-stable liquid crystal cells

Definitions

  • the present disclosure belongs to the technical field of display glass, and specifically relates to a dimming glass and a glass module.
  • dimming glass in the construction and transportation fields is more and more extensive, and customers such as automobiles, high-speed railways, and passenger aircraft are interested in dye liquid crystal dimming glass.
  • PDLC smart glass can only switch between transparency and haze, without shading or heat insulation; electrochromic smart glass has problems such as complex film process, slow response time (8-20s), and blueish dark color.
  • Dye liquid crystal dimming glass uses the selective absorption of light by dichroic dye molecules in the liquid crystal to realize the switch between the bright state and the dark state. Compared with the existing PDLC and electrochromic smart glass, it has purity and response time in the black state. The optical performance has been greatly improved.
  • the existing dye liquid crystal dimming glass can only realize the adjustment of the black state, the bright state and the gray-scale state, that is, only the transmittance of the glass to visible light can be adjusted.
  • dimming glass is used in car windows, conference room partitions, and architectural glass, there is a need for privacy protection while passing through; in the fields of car windows, art design, etc., the application prospect of full-face color dimming glass is huge.
  • the current dimming glass cannot meet the needs of these applications.
  • the present disclosure provides a dimming glass and a glass module.
  • embodiments of the present disclosure provide a dimming glass, including a basic dimming structure and a reflective polarizer; wherein, the basic dimming structure includes a first substrate and a second substrate disposed oppositely, and The first liquid crystal layer between the first substrate and the second substrate; the first liquid crystal layer is used for deflection under the control of the electric field generated between the first substrate and the second substrate To control the transmittance of light;
  • the reflective polarizer is located on a side of the first substrate away from the liquid crystal layer.
  • the first liquid crystal layer includes: basic liquid crystal molecules and dichroic dye molecules.
  • the first substrate includes a first substrate, and a first electrode disposed on a side of the first substrate close to the first liquid crystal layer; and the second substrate includes a second substrate, which is disposed on the first substrate. The second electrode on the side of the second substrate close to the first liquid crystal layer;
  • the first electrode and the second electrode are both plate-shaped electrodes.
  • the first substrate includes a first substrate, and a first electrode disposed on a side of the first substrate close to the first liquid crystal layer; and the second substrate includes a second substrate, which is disposed on the first substrate. The second electrode on the side of the second substrate close to the first liquid crystal layer;
  • One of the first electrode and the second electrode is a plate electrode, and the other is a strip electrode.
  • the first substrate and the reflective polarizer are connected by a reflective adhesive layer.
  • the reflective polarizer includes any one of APF, DBEF, and DLRP.
  • the thickness of the radiation polarizer is less than or equal to 150 ⁇ m.
  • a first protective glass is provided on the side of the reflective polarizer facing away from the first substrate; the first protective glass is bonded to the reflective polarizer through a first bonding layer.
  • a first protective glass is provided on the side of the reflective polarizer facing away from the first substrate; the first protective glass is bonded to the reflective polarizer through a first bonding layer;
  • a second protective glass is provided on the first side of the second substrate away from the first liquid crystal layer; the second protective glass is bonded to the reflective polarizer through a second bonding layer.
  • a first protective glass is provided on the side of the reflective polarizer facing away from the first substrate; the first protective glass is bonded to the reflective polarizer through a first bonding layer;
  • a second protective glass is provided on the first side of the second substrate away from the first liquid crystal layer, and there is a certain distance between the second protective glass and the second substrate, and the second protective glass It is sealed with the basic dimming structure through a sealing frame.
  • a functional dimming structure is further provided on a layer of the second substrate away from the liquid crystal layer; wherein, the functional dimming structure includes a third substrate and a fourth substrate disposed oppositely, and The second liquid crystal layer between the third substrate and the fourth substrate; the second liquid crystal layer is used for deflection under the control of the electric field between the third substrate and the fourth substrate, So that the functional dimming structure can be in a foggy state.
  • the second liquid crystal layer includes PNLC or PDLC.
  • the first liquid crystal layer includes trans-PNLC.
  • a functional dimming structure is further provided on a layer of the second substrate away from the liquid crystal layer; wherein, the functional dimming structure includes a third substrate and a fourth substrate disposed oppositely, and The second liquid crystal layer between the third substrate and the fourth substrate; the second liquid crystal layer includes color dye liquid crystal, which is used for the effect of the electric field generated between the third substrate and the fourth substrate Deflection is performed downward to control the transmittance of light of the same color as that of the color dye liquid crystal in the light irradiated on the functional dimming structure.
  • a functional dimming structure is further provided on a layer of the second substrate away from the liquid crystal layer; wherein, the functional dimming structure includes a third substrate and a fourth substrate disposed oppositely, and The second liquid crystal layer between the third substrate and the fourth substrate; the third substrate includes a third base, and a third electrode disposed on the side of the third base close to the second liquid crystal layer; The four substrates include a fourth substrate, and a fourth electrode disposed on the side of the fourth substrate close to the second liquid crystal layer; the third electrode and the fourth electrode are applied with a voltage to form an electric field to control the second liquid crystal The layer is deflected so that the functional dimming structure performs screen display.
  • a functional dimming structure is further provided on a layer of the second substrate away from the liquid crystal layer; wherein, the functional dimming structure includes a third substrate and a fourth substrate disposed oppositely, and The second liquid crystal layer between the third substrate and the fourth substrate is used for deflection under the action of the electric field generated between the third substrate and the fourth substrate to reflect light of a specific wavelength band.
  • the second liquid crystal layer includes bistable liquid crystal molecules.
  • the second substrate includes a second substrate, and a second electrode disposed on a side of the second substrate close to the first liquid crystal layer; the second substrate and the third substrate pass between the plates Bonding layer connection.
  • the second substrate includes a second substrate, and a second electrode disposed on a side of the second substrate close to the first liquid crystal layer; the second substrate is shared with the third substrate.
  • embodiments of the present disclosure provide a glass module including the above-mentioned dimming glass.
  • Fig. 1 is a schematic diagram of an exemplary bright state of a dimming glass
  • Fig. 2 is a schematic diagram of an exemplary dark state of the dimming glass
  • Fig. 3 is a schematic diagram of another exemplary bright state of the dimming glass
  • Fig. 4 is a schematic diagram of another exemplary dark state of the dimming glass
  • FIG. 5 is a schematic diagram of the bright state of the dimming glass according to the embodiment of the disclosure.
  • FIG. 6 is a schematic diagram of the dark state of the dimming glass according to an embodiment of the disclosure.
  • FIG. 7 is a comparison diagram of the light and dark state transmittance of the light-switching glass of two dye liquid crystal cells and the light-dark glass of a single dye liquid crystal cell with reflective polarized light;
  • Fig. 8 is an exemplary dimming glass in an embodiment of the disclosure.
  • Fig. 9 is another exemplary dimming glass in the embodiment of the disclosure.
  • Fig. 10 is another exemplary dimming glass in the embodiment of the disclosure.
  • Figure 11 is a top view of Figure 10
  • Fig. 12 is an exemplary dimming glass of a shutter structure in an embodiment of the disclosure.
  • FIG. 13 is an exemplary privacy function dimming glass in an embodiment of the disclosure.
  • FIG. 14 is an exemplary dimming glass with colorization function in an embodiment of the disclosure.
  • FIG. 15 is an exemplary display function dimming glass in an embodiment of the disclosure.
  • FIG. 16 is an exemplary dimming glass with infrared light prevention function in an embodiment of the disclosure.
  • an exemplary dimming glass which includes a basic dimming structure 10 without a chiral agent, and the basic dimming structure 10 is a dye liquid crystal cell.
  • the dye liquid crystal cell includes a first substrate, a second substrate, and a dye liquid crystal layer disposed between the first substrate and the second substrate.
  • the first substrate includes a first substrate 11, which are arranged in order.
  • the first substrate 11 has a first electrode 13 and a first alignment layer 15 on the side close to the liquid crystal layer;
  • the second substrate includes: a second substrate 12, and a second electrode 14 and a second electrode 14 arranged on the side of the second substrate 12 close to the liquid crystal layer in turn
  • the material of the liquid crystal layer includes liquid crystal molecules and dichroic dye molecules. According to the dichroic characteristics of dichroic dye molecules, it can only absorb the light that is parallel to the long axis of the dye molecule in the incident light.
  • both the first electrode 13 and the second electrode 14 are plate electrodes as an example for description.
  • the dye liquid crystal cell is a VA type liquid crystal cell, that is, the display mode is a normally white mode.
  • the dye liquid crystal cell is in a bright state, as shown in FIG. 1; when voltage is applied to the first electrode 13 and the second electrode 14, the dye liquid crystal cell is Dark state, as shown in Figure 2.
  • the long axis direction of the dye molecules in the liquid crystal layer has only one direction, which is parallel to the orientation direction of the liquid crystal, so it absorbs at most 50% of the incident light, that is, the dark state transmittance is greater than or equal to 50%.
  • the long axis of the dye molecule is not completely parallel, the light absorption increases, and the influence of the medium at the same time makes the transmittance decrease, but in general, the dark state transmittance is also greater than or equal to 30%. Since the dark state transmittance is relatively high, the CR of this mode of dimmer glass is low, generally around 2; where CR represents the ratio of the light transmittance to the dark state transmittance.
  • an exemplary dimming glass is given, which is composed of two basic dimming structures 10 that do not contain chiral agents; among them, Figure 3 shows the bright state of the dimming glass.
  • Figure 4 is a schematic diagram of the dimming glass in the dark state.
  • the structure of each dye liquid crystal cell can be the same as the above structure.
  • the orientation directions of the two liquid crystal cells in the dimming glass are perpendicular to each other.
  • the dark state the long axis directions of the dye molecules in the two dye liquid crystal cells are perpendicular to each other.
  • the dimming glass of this mode is composed of two dye liquid crystal cells and an adhesive layer 30 bonding the two together.
  • the thickness is relatively thick, and it is difficult to meet the requirements for thinner functional layers in passenger cars, buildings, and the like. For this reason, the following dimming glass is provided in the embodiment of the present disclosure.
  • FIGS. 1-10 In the first aspect, as shown in FIGS.
  • an embodiment of the present disclosure provides a dimming glass, which includes a basic dimming glass and a reflective polarizer 40 that are stacked; wherein, the basic dimming structure 10 and the reflective polarizer 40 The sheet 40 cooperates to control the light transmittance of the dimming glass.
  • the basic dimming structure 10 in the embodiments of the present disclosure refers to a glass structure capable of adjusting light transmittance, such as: dye liquid crystal cell, PDLC smart glass, and electrochromic smart glass.
  • the basic dimming structure 10 is a dye liquid crystal cell as an example for description.
  • an embodiment of the present disclosure provides a dimming glass, which includes a dye liquid crystal cell and a reflective polarizer 40; wherein, the dye liquid crystal cell includes: a first substrate and a first substrate disposed opposite to each other.
  • the first substrate 11 includes: a first substrate 11, which is sequentially disposed on the first substrate 11 on the side of the first substrate 11 close to the first liquid crystal layer 17
  • a second substrate includes: a second substrate 12, a second electrode 14 and a second alignment layer 16 which are sequentially arranged on the side of the second substrate 12 close to the first liquid crystal layer 17
  • the sheet 40 is disposed on the side of the first substrate away from the first liquid crystal layer 17.
  • both the first electrode 13 and the second electrode 14 may be plate-shaped electrodes.
  • the formed dye liquid crystal cell is a VA mode liquid crystal cell; when no voltage is applied to the first electrode 13 and the second electrode 14, The dye liquid crystal cell is in the bright state, as shown in FIG. 5; when voltage is applied to the first electrode 13 and the second electrode 14, the dye liquid crystal cell 1 is in the dark state, as shown in FIG. That is, the dye liquid crystal cell is in a normally white mode.
  • the orientation directions of the first alignment layer 15 and the second alignment layer 16 are parallel, that is, the direction of rubbing alignment when forming the first alignment layer 15 is parallel to the direction of rubbing alignment when forming the second alignment layer 16 , But the direction of friction is opposite.
  • the direction of the transmission axis of the reflective polarizer 40 is parallel to the orientation of the first alignment layer 15.
  • the dimming glass in the dark state, only the polarized light whose polarization direction is the same as the transmission axis direction of the reflective polarizer 40 passes through and enters the dye liquid crystal cell. Because the first liquid crystal layer 17 is dark The deflection direction in the state depends on the first alignment layer 15 and the second alignment layer 16, so that the long axis direction of the dye molecules in the first liquid crystal layer 17 is the same as the transmission axis direction of the reflective polarizer 40, so The light incident to the dye liquid crystal cell via the reflective polarizer 40 is only the polarized light parallel to the long axis direction of the dye molecule, and the positive dye molecule absorbs the polarized light parallel to the direction of the polarized light and the long axis direction, so it passes through the reflective polarizer.
  • the polarized light incident to the dye liquid crystal cell by the polarizer 40 is absorbed by the dye molecules, so that the emitted light is very small, so that the dark state transmittance of the dimming glass is extremely low, and the CR is high; and the dimming glass of this structure is relatively Flimsy.
  • the dye liquid crystal cell is in the normally white mode.
  • the dye liquid crystal cell can also be in the normally black mode, that is, when the first electrode 13 and the second electrode 14 are applied When voltage is applied, the dye liquid crystal cell is in the dark state; when no voltage is applied to the first electrode 13 and the second electrode 14, the dye liquid crystal cell is in the bright state.
  • the dye molecules in the first liquid crystal layer 17 include basic liquid crystal molecules and dichroic dye molecules, that is, the liquid crystal molecules are doped with dichroic dye molecules.
  • the doped dichroic dye molecules may be black dye molecules or colored dye molecules, such as red, orange, etc.
  • the dye liquid crystal used in the embodiments of the present disclosure does not contain a chiral agent, and the dye liquid crystal is a positive dye liquid crystal.
  • the reflective polarizer 40 includes, but is not limited to, APF (Advanced Polarizer Film; multilayer reflective polarizer 40), DBEF (Dual Brightness Enhancement Film; multilayer optical film), DLRP (direct-attached high-efficiency film) Reflective polarizer).
  • APF Advanced Polarizer Film
  • DBEF Double Brightness Enhancement Film
  • DLRP direct-attached high-efficiency film
  • the reflective polarizer 40 is usually connected to the first substrate 11 by using an adhesive layer 50 (which may be referred to as a reflective adhesive layer).
  • the thickness of the reflective polarizer 40 includes but is not limited to 150 ⁇ m or less; further, the thickness of the reflective polarizer 40 is less than 50 ⁇ m. It can be understood that, the smaller the thickness of the reflective polarizer 40 is, the lighter and thinner the overall dimming glass is.
  • the relationship curve between the light and dark transmittance and the cell gap of the dimming glass of the embodiment of the present disclosure and the liquid crystal cell including two dyes is shown.
  • the liquid crystal molecules used in the two kinds of dimming glasses are MDA-18-2219
  • the reflective polarizer 40 is APF (specifically, 3M V3 model, with a transmittance of 65%). It can be seen from Figure 7 that the dark-state transmittance of the dimming glass (curve B) composed of the reflective polarizer 40 and the dye liquid crystal cell and the dimming glass (curve A) using two dye liquid crystal cells Basically close.
  • the bright state transmittance of the dimming glass composed of the reflective polarizer 40 and the dye liquid crystal cell is less than that of the dimming glass using two dye liquid crystal cells, and the cell gap is greater than or equal to 18 ⁇ m
  • the light transmittance of the dimming glass composed of the reflective polarizer 40 and the dye liquid crystal cell is greater than that of the dimming glass using two dye liquid crystal cells.
  • the first substrate 11 and the second substrate 12 may both be glass substrates made of hard materials (for example, quartz), or both may be flexible substrates made of flexible materials (for example, polyimide PI).
  • one of the first substrate 11 and the second substrate 12 may be a glass substrate, and the other may be a flexible substrate.
  • the first substrate 11 is a glass substrate
  • the second substrate 12 is a flexible substrate.
  • the reflective polarizer 40 is disposed on the glass substrate to prevent the reflective polarizer 40 from being scratched.
  • a first protective glass 60 is provided on the first side of the reflective polarizer 40 away from the first substrate 11, and the first protective glass 60 is bonded to the reflective polarizer 40 through the first adhesive layer 70.
  • the first protective glass 60 includes but is not limited to tempered glass
  • the first adhesive layer 70 includes but is not limited to a PVB (Poly Vinyl Butyral Film; polyvinyl butyral ester) glue layer.
  • PVB Poly Vinyl Butyral Film
  • a first protective glass 60 is provided on the side of the reflective polarizer facing away from the first substrate 11; the first protective glass 60 passes through the first adhesive layer 70 and the reflective polarizer 40 Bonding;
  • a second protective glass 80 is provided on the first side of the second substrate 12 away from the first liquid crystal layer 17; the second protective glass 80 is bonded to the second substrate through the second bonding layer 90.
  • the first protective glass 60 and the second protective glass 80 include but are not limited to tempered glass
  • the first adhesive layer 70 and the second adhesive layer 90 include but are not limited to PVB (Poly Vinyl Butyral Film; polyvinyl butyral) Ester) glue layer.
  • a first protective glass 60 is provided on the side of the reflective polarizer 40 away from the first substrate; the first protective glass 60 is connected to the reflective polarizer 40 through the first adhesive layer 70 The reflective polarizer 40 is bonded; a second protective glass 80 is provided on the side of the second substrate 12 away from the first liquid crystal layer 17, and there is a certain distance between the second protective glass 80 and the second substrate 12, and the second The protective glass 80 is sealed with the basic dimming structure 10 by the sealing frame 100.
  • first protective glass 60 and the second protective glass 80 include but are not limited to tempered glass
  • first adhesive layer 70 includes but is not limited to PVB (Poly Vinyl Butyral Film; polyvinyl butyral ester) adhesive layer
  • sealing frame 100 includes but is not limited to aluminum frames.
  • the dimming glass can realize the shutter structure; in particular, one of the first electrode 13 and the second electrode 14 in the dye liquid crystal cell is a strip electrode, and the other is a plate. ⁇ electrode.
  • each strip electrode is controlled by a separate driving circuit. In this way, the corresponding strip electrode can be given by each driving circuit.
  • the electrodes apply corresponding voltage signals to realize that the transmittance of the dimmer glass corresponding to different electrode block positions is different, that is, the dimmer glass is arranged along its strip electrode arrangement direction (that is, perpendicular to the extending direction of the strip electrode).
  • the transmittance of each area in the direction) is different, which is similar to the effect of blinds.
  • the gray scale of each region of the dye liquid crystal cell corresponding to each strip electrode can be adjusted, that is, the transmittance is adjustable.
  • the dimming glass can realize the function of privacy protection.
  • the dimming glass not only includes the above-mentioned basic dimming structure 10 and the reflective polarizer 40, but also includes a functional dimming structure 20,
  • the functional dimming structure 20 is fixed to the side of the basic dimming structure 10 facing away from the reflective polarizer 40 through an adhesive layer 30 (an inter-board bonding layer);
  • the functional dimming structure 20 includes a third substrate and a third substrate disposed opposite to each other.
  • the third substrate of the functional dimming structure 20 includes: a third substrate 21, a third electrode 23 and a third alignment layer 25 sequentially disposed on the third substrate 21;
  • the fourth substrate includes: a fourth substrate 22,
  • the fourth electrode 24 and the fourth alignment layer 26 are arranged on the fourth substrate 22;
  • the material of the second liquid crystal layer 27 includes but is not limited to PNLC (Polymer Network Liquid Crystal) or PDLC (Polymer Dispersed Liquid Crystal).
  • the third electrode 23 and the fourth electrode 24 can both be plate-shaped electrodes, that is, the functional dimming structure 20 is a VA-type liquid crystal cell structure.
  • the first liquid crystal layer 17 can be a trans (vertical alignment) PNLC.
  • the refractive index n p of the polymer in the trans PNLC and the refractive index n e of the long axis of the liquid crystal molecules are When the difference is the largest, the functional dimming structure 20 is in a foggy state; and the voltage applied to the third electrode 23 and the fourth electrode 24 causes the liquid crystal molecules in the trans-PNLC to deflect, and the polymer in the trans-PNLC refraction n p of the liquid crystal molecular long axis and a refractive index n e presence of a difference, but the difference is not maximum, as a function of the dimming structure 20 gray state.
  • the first liquid crystal layer 17 including dye liquid crystal that is, liquid crystal molecules doped with dichroic dye molecules
  • the first electrode 13 and the second electrode 14 are both plate-shaped electrodes, that is, the basic dimming structure 10 is a VA-type liquid crystal cell.
  • the orientations of the first alignment layer 15 and the second alignment layer 16 are parallel.
  • the liquid crystal molecules and the dichroic dye molecules in the first liquid crystal layer 17 are perpendicular to each other.
  • the first substrate and the second substrate are arranged to allow incident light to pass through, and the basic dimming structure 10 is in a bright state; when the first electrode 13 and the second electrode 14 are energized, the first electrode 13 and the second electrode 14 are The electric field generated between the control liquid crystal molecules and the dichroic dye molecules are aligned parallel to the first substrate and the second substrate, and the incident light along the long axis of the dichroic dye molecules is absorbed to make the basic dimming
  • the structure 10 is in a dark state.
  • the liquid crystal molecules and the dichroic dye molecules are all compared with the first substrate. It is arranged obliquely with the second substrate. At this time, part of the light can pass through the basic dimming structure 10, so that the basic dimming structure 10 is in a grayscale state.
  • the functional dimming structure 20 when the functional dimming structure 20 is in a bright state, a grayscale state, and a fog state, and the basic dimming structure 10 is in a bright state, a dark state, and a grayscale state, respectively, the state of the corresponding dimming glass.
  • dark state 1 and dark state 2 in Table 1 both represent that the dimming glass is in the dark state, but the reasons that cause the dimming glass to be in the dark state are different, that is, the dark state 1 is the basic dimming structure 10 In a dark state, the functional dimming structure 20 is in a bright state; the dark state 2 is the basic dimming structure 10 is in a dark state, and the functional dimming structure 20 is in a fog state.
  • the dimming glass in this embodiment through the cooperation of the basic dimming structure 10 and the functional dimming structure 20, can not only realize the control of different transmittances of the dimming glass, but also
  • the basic dimming glass is in a bright state, and when the functional dimming glass is in a foggy state, the dimming glass is in a privacy protection state, so that the car windows, glass partitions, architectural glass and other structures using the dimming glass can realize the function of privacy protection , Thereby improving the user experience.
  • the cell thickness is in the range of 3.5 ⁇ m to 30 ⁇ m, which can be appropriately adjusted according to the transmittance of the dimming glass.
  • the cell thickness is 5 ⁇ m to 15 ⁇ m, which can be appropriately adjusted according to the transmittance of the dimming glass.
  • the second substrate 12 in the basic dimming structure 10 and the third substrate 21 of the functional dimming glass can be shared, so there is no need to provide an adhesive layer 30, so that the thickness of the dimming glass can be further reduced.
  • the dimming glass can realize the color dimming function.
  • the dimming glass not only includes the above-mentioned basic dimming structure 10 and the reflective polarizer 40, but also includes a functional dimming structure 20,
  • the functional dimming structure 20 is fixed to the side of the basic dimming structure away from the reflective polarizer 40 through the adhesive layer 30.
  • the functional dimming structure 20 includes a third substrate and a fourth substrate disposed oppositely, and a second liquid crystal layer 27 disposed between the third substrate and the fourth substrate; the second liquid crystal layer 27 includes color dye liquid crystal for The deflection is performed under the action of the electric field generated between the third substrate and the fourth substrate, so that the functional dimming structure 20 can be in a pure color state; of course, through the action of the different electric fields between the third substrate and the fourth substrate, the functional adjustment
  • the light structure 20 can also be in a bright state, a dark state or a gray-scale state.
  • the third substrate of the functional dimming structure 20 includes: a third substrate 21, a third electrode 23 and a third alignment layer 25 sequentially disposed on the third substrate 21;
  • the fourth substrate includes: a fourth substrate 22,
  • the fourth electrode 24 and the fourth alignment layer 26 are arranged on the fourth substrate 22;
  • the material of the second liquid crystal layer 27 includes but is not limited to color dye liquid crystal, that is, dichroic dye molecules are mixed in the liquid crystal molecules.
  • both the third electrode 23 and the fourth electrode 24 can be plate-shaped electrodes, that is, the functional dimming structure 20 is a VA-type liquid crystal cell structure.
  • the liquid crystal molecules and the dichroic dye molecules in the color dye liquid crystal between the third electrode 23 and the fourth electrode 24 are perpendicular to the third electrode 23 and the fourth electrode 24.
  • the functional dimming structure 20 can pass through the functional dimming structure 20, and the functional dimming structure 20 is in a bright state; when the third electrode 23 and the fourth electrode 24 are energized, the applied voltage can be An electric field is generated between the third electrode 23 and the fourth electrode 24 to control the deflection of the liquid crystal molecules and dichroic dye molecules in the color dye liquid crystal, and are parallel to the third substrate 21 and the fourth substrate 22, so that the functional dimming structure 20 is in a pure color state; and when the third electrode 23 and the fourth electrode 24 are energized, and the applied voltage can generate an electric field between the third electrode 23 and the fourth electrode 24, and control the liquid crystal molecules in the color dye liquid crystal
  • the molecules of the dichroic dye and the dichroic dye are non-parallel and non-perpendicular to the third substrate 21 and the fourth substrate 22, so that the functional dimming structure 20 is in a gray-scale state.
  • the basic dimming structure 10 is the same as the structure in the above embodiment, so it will not be described here.
  • the functional dimming structure 20 when the functional dimming structure 20 is in the bright state, the grayscale state, the dark state, and the pure color state; the basic dimming structure 10 is in the bright state, the dark state, and the grayscale state, respectively, the state of the corresponding dimming glass .
  • the dimming glass in this embodiment through the cooperation of the basic dimming structure 10 and the functional dimming structure 20, can not only achieve the control of different transmittances of the dimming glass, but also When the basic dimming structure is in a bright state, and the functional dimming structure is in a pure color state, the dimming glass is colored.
  • the second substrate 12 in the basic dimming structure 10 and the third substrate 21 of the functional dimming glass can be shared, so that the adhesive layer 30 can be omitted, so that the thickness of the dimming glass can be further reduced.
  • the dimming glass has a display function.
  • the dimming glass not only includes the above-mentioned basic dimming structure 10 and the reflective polarizer 40, but also includes functional dimming.
  • the optical structure 20, the functional dimming structure 20 is fixed to the side of the basic dimming structure 10 facing away from the reflective polarizer 40 through the adhesive layer 30.
  • the functional dimming structure 20 includes a third substrate and a fourth substrate disposed oppositely, and a second liquid crystal layer 27 disposed between the third substrate and the fourth substrate; the second liquid crystal layer 27 includes color dye liquid crystal or basic liquid crystal, It is used for deflection under the action of the electric field generated between the third substrate and the fourth substrate, so that the functional dimming structure 20 can perform display.
  • the third substrate of the functional dimming structure 20 includes: a third substrate 21, a third electrode 23 and a third alignment layer 25 sequentially disposed on the third substrate 21;
  • the fourth substrate includes: a fourth substrate 22,
  • the fourth electrode 24 and the fourth alignment layer 26 are disposed on the fourth substrate 22; in particular, one of the third electrode 23 and the fourth electrode 24 is a pixel electrode, the other is a common electrode, and
  • the pixel electrode is arranged corresponding to the pixel unit, so as to drive the liquid crystal deflection of the second liquid crystal layer 27 by applying voltage to the pixel electrode and the common electrode to realize the display function.
  • the second substrate 12 in the basic dimming structure 10 and the third substrate 21 of the functional dimming glass can be shared, so that the adhesive layer 30 can be omitted, so that the thickness of the dimming glass can be further reduced.
  • the dimming glass can realize the function of preventing infrared.
  • the dimming glass not only includes the above-mentioned basic dimming structure 10 and the reflective polarizer 40, but also includes a functional dimming structure 20,
  • the functional dimming structure 20 is fixed to the side of the basic dimming structure 10 facing away from the reflective polarizer 40 through the adhesive layer 30.
  • the functional dimming structure 20 includes a third substrate and a fourth substrate disposed opposite to each other, and a second liquid crystal layer 27 disposed between the third substrate and the fourth substrate, for generating between the third substrate and the fourth substrate. The deflection is performed under the action of the electric field, so that the functional dimming structure 20 can reflect infrared light.
  • the second liquid crystal layer 27 may be a bistable liquid crystal that reflects infrared light. Under the action of the electric field between the third substrate and the fourth substrate, the bistable liquid crystal can be made into P state, H state, and FC state.
  • the third substrate of the functional dimming structure 20 includes: a third substrate 21, a third electrode 23 and a third alignment layer 25 sequentially disposed on the third substrate 21;
  • the fourth substrate includes: a fourth substrate 22,
  • the fourth electrode 24 and the fourth alignment layer 26 are arranged on the fourth substrate 22;
  • the second liquid crystal layer 27 may specifically include a bistable liquid crystal that reflects infrared light.
  • bistable liquid crystal When the bistable liquid crystal is in the P state, visible light can normally pass through the functional dimming structure 20, while the infrared light is reflected by the bistable liquid crystal; when the bistable liquid crystal is in the H state, both visible light and infrared light can pass The functional dimming structure 20; when the bistable liquid crystal is in the FC state, it scatters visible light and infrared light.
  • the basic dimming structure 10 is the same as the structure in the above-mentioned embodiment, and will not be repeated here.
  • the basic dimming structure 10 when the basic dimming structure 10 is in the bright state and the bistable liquid crystal in the functional dimming structure 20 is in the P state, visible light can pass through the dimming glass normally, and the infrared light is reflected by the bistable liquid crystal.
  • the intelligent dimming glass that is anti-infrared light is in anti-infrared mode, so as to achieve an anti-infrared effect.
  • This kind of dimming glass can be used in construction, car windows and other fields.
  • the anti-infrared mode can be turned on to prevent infrared light from entering the room or car windows, reducing the indoor temperature and reducing the indoor temperature. Or the energy consumption of the air conditioner in the car to achieve energy saving effect.
  • the dimming glass is in a scattering dark state, which is actually a dark state.
  • the fifth case similar to the first case above, when the basic dimming structure 10 is in the dark state and the bistable liquid crystal in the functional dimming structure 20 is in the P state, the dimming glass is in the dark state at this time, and at the same time Can prevent infrared light.
  • the dimming glass is in the gray-scale state at this time.
  • embodiments of the present disclosure also provide a glass module, which includes the above-mentioned dimming glass.
  • the glass module can be applied to transportation facilities such as automobiles, trains, and airplanes. It can also be applied to smart windows in buildings. Since the glass module in the embodiment of the present disclosure includes the above-mentioned dimming glass, its dark state transmittance is relatively low, CR is relatively high, and the glass module is relatively thin and light.

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Abstract

一种调光玻璃及玻璃模组，属于显示玻璃技术领域。调光玻璃包括基础调光结构（10）和反射式偏光片（40）；其中，基础调光结构（10）包括相对设置的第一基板和第二基板，以及设置在第一基板和第二基板之间的第一液晶层（17）；第一液晶层（17），用于在第一基板和第二基板之间所产生的电场的控制下进行偏转，以控制光线的透过率；反射式偏光片（40）位于第一基板背离液晶层的一侧。

Description

调光玻璃及玻璃模组
相关申请的交叉引用
本公开要求于2019年12月12日提交的申请号为201911275372.4的中国专利的优先权，在此将其内容以引用方式整体并入本文。
技术领域
本公开属于显示玻璃技术领域，具体涉及一种调光玻璃及玻璃模组。
背景技术
目前，调光玻璃在建筑、交通领域的应用越来越广泛，现已有汽车、高铁、客机等客户对染料液晶调光玻璃感兴趣。现有智能玻璃市场中有PDLC智能玻璃、电致变色智能玻璃等产品。PDLC智能玻璃只能实现透明与雾度切换，不遮光、不隔热；电致变色智能玻璃存在膜层工艺复杂、响应时间慢(8～20s)、暗态颜色偏蓝等问题。染料液晶调光玻璃利用液晶中二向色性染料分子对光的选择性吸收，实现亮态与暗态的切换，相较现有PDLC、电致变色智能玻璃，在黑态纯度、响应时间等光学性能上有大幅提升。但现有染料液晶调光玻璃只能实现黑态、亮态及灰阶状态的调节，即只能调节玻璃对可见光的透过率。调光玻璃用于车窗、会议室隔断、建筑玻璃时，在透过的同时又有隐私保护的需求；在车窗、艺术设计等领域，整面彩色调光玻璃应用前景巨大。目前调光玻璃无法满足这些应用的需求。
发明内容
本公开提供一种调光玻璃及玻璃模组。
第一方面，本公开实施例提供一种调光玻璃，包括基础调光结构和反射式偏光片；其中，所述基础调光结构包括相对设置的第一基板和第二基板，以及设置在所述第一基板和所述第二基板之间的第一液晶层；所述第一液晶层，用于在所述第一基板和所述第二基板之间所产生的电场的控制下进行偏转，以控 制光线的透过率；
所述反射式偏光片位于所述第一基板背离所述液晶层的一侧。
可选地，所述第一液晶层包括：基础液晶分子和二向色性染料分子。
可选地，所述第一基板包括第一基底，设置在所述第一基底靠近所述第一液晶层一侧的第一电极；所述第二基板包括第二基底，设置在所述第二基底靠近第一液晶层一侧的第二电极；其中，
所述第一电极和所述第二电极均为板状电极。
可选地，所述第一基板包括第一基底，设置在所述第一基底靠近所述第一液晶层一侧的第一电极；所述第二基板包括第二基底，设置在所述第二基底靠近第一液晶层一侧的第二电极；其中，
所述第一电极和所述第二电极中的一者为板状电极，另一者为条状电极。
可选地，所述第一基底与所述反射式偏光片通过反射式粘结层连接。
可选地，所述反射式偏光片包括APF、DBEF、DLRP中的任意一种。
可选地，所述射式偏光片的厚度小于等于150μm。
可选地，在所述反式射偏光片背离所述第一基板的一侧设置有第一保护玻璃；所述第一保护玻璃通过第一粘结层与所述反射式偏光片粘结。
可选地，在所述反射式偏光片背离所述第一基板的一侧设置有第一保护玻璃；所述第一保护玻璃通过第一粘结层与所述反射式偏光片粘结；
在所述第二基板背离所述第一液晶层的第一侧设置有第二保护玻璃；所述第二保护玻璃通过第二粘结层与所述反射式偏光片粘结。
可选地，在所述反射式偏光片背离所述第一基板的一侧设置有第一保护玻璃；所述第一保护玻璃通过第一粘结层与所述反射式偏光片粘结；
在所述第二基板背离所述第一液晶层的第一侧设置有第二保护玻璃，所述第二保护玻璃与所述第二基板之间存在一定的间距，且所述第二保护玻璃通过密封框与所述所述基础调光结构密封。
可选地，在所述第二基板背离所述液晶层的一层还设置有功能调光结构；其中，所述功能调光结构包括相对设置的第三基板和第四基板，以及设置在所述第三基板和所述第四基板之间的第二液晶层；所述第二液晶层，用于在所述所述第三基板和所述第四基板之间的电场控制下进行偏转，以使所述功能调光结构能够呈雾态。
可选地，所述第二液晶层包括PNLC或者PDLC。
可选地，所述第一液晶层包括反式PNLC。
可选地，在所述第二基板背离所述液晶层的一层还设置有功能调光结构；其中，所述功能调光结构包括相对设置的第三基板和第四基板，以及设置在所述第三基板和所述第四基板之间的第二液晶层；所述第二液晶层包括彩色染料液晶，用于在所述第三基板和所述第四基板之间产生的电场的作用下进行偏转，以控制照射至所述功能调光结构上的光线中与所述彩色染料液晶相同颜色光的透过率。
可选地，在所述第二基板背离所述液晶层的一层还设置有功能调光结构；其中，所述功能调光结构包括相对设置的第三基板和第四基板，以及设置在所述第三基板和所述第四基板之间的第二液晶层；所述第三基板包括第三基底，设置在第三基底靠近所述第二液晶层一侧的第三电极；所述第四基板包括第四基底，设置在第四基底靠近所述第二液晶层一侧的第四电极；所述第三电极和所述第四电极被施加电压后形成电场，控制所述第二液晶层偏转，以使所述功能调光结构进行画面显示。
可选地，在所述第二基板背离所述液晶层的一层还设置有功能调光结构；其中，所述功能调光结构包括相对设置的第三基板和第四基板，以及设置在所述第三基板和所述第四基板之间的第二液晶层用于在所述第三基板和所述第四基板之间产生的电场的作用下进行偏转，对特定波段的光线进行反射。
可选地，所述第二液晶层包括双稳态液晶分子。
可选地，所述第二基板包括第二基底，以及设置在所述第二基底靠近所述第一液晶层一侧的第二电极；所述第二基底与所述第三基底通过板间粘结层连 接。
可选地，所述第二基板包括第二基底，以及设置在所述第二基底靠近所述第一液晶层一侧的第二电极；所述第二基底与所述第三基底共用。
第二方面，本公开实施例提供一种一种玻璃模组，其包括上述的调光玻璃。
附图说明
图1为一种示例性的调光玻璃亮态的示意图；
图2为一种示例性的调光玻璃暗态的示意图；
图3为另一种示例性的调光玻璃亮态的示意图；
图4为另一种示例性的调光玻璃暗态的示意图；
图5为本公开实施例的调光玻璃亮态的示意图；
图6为本公开实施例的调光玻璃暗态的示意图；
图7为两个染料液晶盒的调光玻璃和单个染料液晶盒配合反射式偏光的调光玻璃的亮暗态透过率的对比图；
图8为本公开实施例中一种示例性的调光玻璃；
图9为本公开实施例中另一种示例性的调光玻璃；
图10为本公开实施例中另一种示例性的调光玻璃；
图11为图10的俯视图；
图12为本公开实施例中的一种示例性的百叶窗结构的调光玻璃；
图13为本公开实施例中的一种示例性的隐私化功能的调光玻璃；
图14为本公开实施例中的一种示例性的彩色化功能的调光玻璃；
图15为本公开实施例中的一种示例性的显示功能的调光玻璃；
图16为本公开实施例中的一种示例性的防红外光功能的调光玻璃。
具体实施方式
为使本领域技术人员更好地理解本公开的技术方案，下面结合附图和具体 实施方式对本公开作进一步详细描述。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”、“一”或者“该”等类似词语也不表示数量限制，而是表示存在至少一个。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
如图1和2所示，给出一种示例性的调光玻璃，其包括一个不含手性剂的基础调光结构10，该基础调光结构10为一染料液晶盒。具体的，该染料液晶盒包括相对设置的第一基板、第二基板，以及设置在第一基板和第二基板之间的染料液晶层；其中，第一基板包括第一基底11，依次设置在第一基底11靠近液晶层的一侧的第一电极13和第一取向层15；第二基板包括：第二基底12，依次设置在第二基底12靠近液晶层一侧的第二电极14和第二取向层16；液晶层的材料包括液晶分子和二向色性染料分子。根据二向色性染料分子的二向色特性，只能吸收入射光中和染料分子长轴平行的光。
具体的，在本公开实施例中以第一电极13和第二电极14均为板状电极为例进行说明，此时染料液晶盒为VA型液晶盒，也即显示模式为常白模式。当不给第一电极13和第二电极14施加电压时，该染料液晶盒为亮态，如图1所示；当给第一电极13和第二电极14施加电压时，该染料液晶盒为暗态，如图2所示。其中，液晶层中的染料分子长轴方向只有一个方向，均平行于液晶取向方向，故最多吸收入射光中50％的光，即暗态透过率大于等于50％。在实际中染料分子长轴不完全平行，吸光量增加，同时介质影响，使得透过率下降，但一般暗态透过率也大于等于30％。由于暗态透过率较高，此种模式的调光玻璃CR较低，一般在2左右；其中，CR代表亮态透过率和暗态透过率的比值。
如图3和4所示，给出一种示例性的调光玻璃，该调光玻璃由两个不含手性剂的基础调光结构10组成；其中，图3为调光玻璃亮态时的示意图；图4为调光玻璃暗态时的示意图。每个染料液晶盒的结构可以与上述结构相同，特别的是，该调光玻璃中的两个液晶盒的取向方向相互垂直，暗态时，两个染料液晶盒中染料分子长轴方向相互垂直，染料分子的吸光方向相互垂直，二者相当于正交放置的偏光片，故暗态透过率很低，相应的CR较高。但是这种模式的调光玻璃，由两个染料液晶盒和将二者贴合的粘结层30组成，厚度较厚，很难满足乘用车、建筑等对功能层薄型化的需求。为此，在本公开实施例中提供下述调光玻璃。第一方面，如图5和6所示，本公开实施例提供一种调光玻璃，包括叠层设置的基础调光玻璃和反射式偏光片40；其中，基础调光结构10和反射式偏光片40相配合用于控制调光玻璃的光线透过率。
在此需要说明的是，本公开实施例中的基础调光结构10是指能够对光线透过率率进行调整的玻璃结构，例如：染料液晶盒、PDLC智能玻璃、电致变色智能玻璃。为了更清楚本公开实施例中的调光玻璃的结构，在本公开实施例中以基础调光结构10为染料液晶盒为例进行说明。
第一方面，如图5和6所示，本公开实施例提供一种调光玻璃，其包括染料液晶盒和反射式偏光片40；其中，染料液晶盒包括：相对设置的第一基板和第二基板，以及设置在第一基板和第二基板之间的第一液晶层17；第一基底11包括：第一基底11，依次设置在第一基底11靠近第一液晶层17一侧的第一电极13和第一取向层15；第二基板包括：第二基底12，依次设置在第二基底12靠近第一液晶层17一侧的第二电极14和第二取向层16；反射式偏光片40设置在第一基板背离第一液晶层17一侧。其中，第一电极13和第二电极14均可以为板状电极，此时，所形成的染料液晶盒为VA模式的液晶盒；当不给第一电极13和第二电极14施加电压时，该染料液晶盒为亮态，如图5所示；当给第一电极13和第二电极14施加电压时，该染料液晶盒1为暗态，如图6所示。也即，该染料液晶盒为常白模式。其中，第一取向层15和第二取向层16二者的取向方向平行，也即在，在形成第一取向层15时摩擦取向的方向，与形成第二取向层16时摩擦取向的方向平行，但摩擦的方向相反。反射式偏光片40的透光轴 方向与第一取向层15的取向平行。
本公开实施例中所提供的调光玻璃，在暗态时，只有偏振方向和反射式偏光片40透光轴方向相同的偏振光透过，进入染料液晶盒，由于第一液晶层17在暗态时的偏转方向取决于第一取向层15和第二取向层16，这样一来，第一液晶层17中的染料分子的长轴方向和反射式偏光片40的透光轴方向相同，因此，经由反射式偏光片40入射到染料液晶盒的光只有和染料分子长轴方向平行的偏振光，而正性染料分子会吸收偏振光方向和其长轴方向平行的偏振光，故经由反射式偏光片40入射到染料液晶盒的偏振光被染料分子吸收，使得出射光很少，从而使得调光玻璃的暗态透过率极低，CR较高；而且该种结构的调光玻璃，较为轻薄。
在此需要说明的是，以上是以染料液晶盒为常白模式为例进行说明的，当然，染料液晶盒也可以为常黑模式，也即，在给第一电极13和第二电极14施加电压时，该染料液晶盒为暗态；在不给第一电极13和第二电极14施加电压时，该染料液晶盒为亮态。
在一些实施例中，第一液晶层17中的染料分子包括基础液晶分子和二向色性染料分子，也即在液晶分子中掺杂二向色性染料分子。其中，掺杂二向色性染料分子可以是黑色染料分子，也可以是彩色染料分子，例如：红色、橙色等。具体的，在本公开实施例中所采用的染料液晶中不含手性剂，且染料液晶为正性染料液晶。
在一些实施例中，反射式偏光片40包括但不限于APF(Advanced Polarizer Film；多层膜反射式偏光片40)、DBEF(Dual Brightness Enhancement Film；多层光学膜)、DLRP(直贴式高效反射式偏光片)。
其中，反射式偏光片40通常是采用粘结层50(可称为反射式粘结层)与第一基底11连接的。在一些实施例中，反射式偏光片40的厚度包括但不限于小于等于150μm；进一步的，反射式偏光片40的厚度小于50μm。可以理解的是，反射式偏光片40的厚度越小，调光玻璃整体更加轻薄。
如图7所示，给出本公开实施例的调光玻璃和包括两个染料液晶盒的亮暗 态透过率和盒厚(Cell Gap)的关系曲线。其中，两种调光玻璃中所采用的液晶分子均为MDA-18-2219，反射式偏光片40为APF(具体为3M V3型号，透过率为65％)。由图7可以看出的是，采用反射式偏光片40和染料液晶盒组成的调光玻璃(曲线B)，与采用两个染料液晶盒的调光玻璃(曲线A)的暗态透过率基本接近。在盒厚小于18μm时，采用反射式偏光片40和染料液晶盒组成的调光玻璃的亮态透过率小于采用两个染料液晶盒的调光玻璃，在盒厚(cell gap)大于等于18μm时，采用反射式偏光片40和染料液晶盒组成的调光玻璃的亮态透过率大于采用两个染料液晶盒的调光玻璃。
在一些实施例中，第一基底11和第二基底12可以均采用硬质材料(例如：石英)的玻璃基底，或者均为采用柔性材料(例如：聚酰亚胺PI)的柔性基底。当然，也可是第一基底11和第二基底12中的一者采用玻璃基底，另一者采用柔性基底。
在一个示例中，如图8所示，第一基底11采用玻璃基底，第二基底12采用柔性基底，此时，反射式偏光片40设置在玻璃基底上，为了防止反射式偏光片40被划伤，在反射式偏光片40背离第一基底11的第一侧设置第一保护玻璃60，且第一保护玻璃60通过第一粘结层70与反射式偏光片40粘结。其中，第一保护玻璃60包括但不限于钢化玻璃，第一粘结层70包括但不限于PVB(Poly Vinyl Butyral Film；聚乙烯醇缩丁醛酯)胶层。当然，第二基底12采用玻璃基底也可是可行的。
在一个示例中，如图9所示，在反射式偏光片背离第一基底11的一侧设置有第一保护玻璃60；第一保护玻璃60通过第一粘结层70与反射式偏光片40粘结；在第二基底12背离第一液晶层17的第一侧设置有第二保护玻璃80；第二保护玻璃80通过第二粘结层90与第二基底粘结。其中，第一保护玻璃60和第二保护玻璃80包括但不限于钢化玻璃，第一粘结层70和第二粘结层90包括但不限于PVB(Poly Vinyl Butyral Film；聚乙烯醇缩丁醛酯)胶层。
在一个示例中，如图10和图11所示，在反射式偏光片40背离所述第一基板的一侧设置有第一保护玻璃60；第一保护玻璃60通过第一粘结层70与反射式偏光片40粘结；在第二基底12背离第一液晶层17的一侧设置有第二保护玻 璃80，第二保护玻璃80与第二基板12之间存在一定的间距，且第二保护玻璃80通过密封框100与所述基础调光结构10密封。其中，第一保护玻璃60和第二保护玻璃80包括但不限于钢化玻璃，第一粘结层70包括但不限于PVB(Poly Vinyl Butyral Film；聚乙烯醇缩丁醛酯)胶层；密封框100包括但不限于铝框。
在一个示例中，如图12所示，调光玻璃可以实现百叶窗结构；特别的是，染料液晶盒中的第一电极13和第二电极14中的一者为条状电极，一者为板状电极。以设置在第二基底12上的第二电极14为条状电极为例，此时，每个条状电极通过单独驱动电路进行控制，这样一来，可以通过各驱动电路给与其对应的条状电极施加相应的电压信号，以实现调光玻璃对应不同的电极块的位置的透过率是不同的，也即调光玻璃沿其条状电极排列方向(即，与条状电极延伸方向垂直的方向)的各个区域的透过率不同，也即类似于百叶窗的效果。在此需要说明的是，染料液晶盒对应每个条状电极的各个区域的灰阶是可以调的，也即透过率可调的。
在一个示例中，如图13所示，调光玻璃可以实现隐私保护的功能，该调光玻璃不仅包括上述的基础调光结构10和反射式偏光片40，而且还包括功能调光结构20，该功能调光结构20通过粘结层30(板间粘结层)与基础调光结构10背离反射式偏光片40的一侧相固定；该功能调光结构20包括相对设置的第三基板和第四基板，以及设置在第三基板和第四基板之间的第二液晶层27；第二液晶层27，用于在所述第三基板和所述第四基板之间的电场控制下进行偏转，以使所述功能调光结构20能够呈雾态，也即该调光玻璃具有隐私保护功能。
具体的，功能调光结构20的第三基板包括：第三基底21，依次设置在第三基底21上的第三电极23和第三取向层25；第四基板包括：第四基底22，依次设置在第四基底22上的第四电极24和第四取向层26；第二液晶层27的材料包括但不限于PNLC(聚合物网络液晶)或者PDLC(聚合分散液晶)。其中，第三电极23和第四电极24均可以采用板状电极，也即功能调光结构20为一VA型液晶盒结构，此时第一液晶层17可以采用反式(垂直配向)PNLC。
当不给第三电极23和第四电极24加电时，第三电极23和第四电极24之间无电场，反式PNLC中的聚合物的折射率n p和和液晶分子短轴的折射率相等 (n p＝n o)，光线能够经由功能调光结构20穿过，功能调光结构20呈亮态；当给第三电极23和第四电极24加电时，且所施加的电压能够在第三电极23和第四电极24之间产生电场，使得反式PNLC中的液晶分子发生偏转，反式PNLC中的聚合物的折射率n p和液晶分子长轴的折射率n e的差值最大时，功能调光结构20呈雾态；而给第三电极23和第四电极24所施加的电压，使得反式PNLC中的液晶分子发生偏转，反式PNLC中的聚合物的折射率n p和液晶分子长轴的折射率n e存在差值，但差值不是最大时，功能调光结构20呈灰阶态。
为了更清楚了解上述的调光玻璃，以第一液晶层17包括染料液晶(也即在液晶分子中掺杂二向色性染料分子)为例进行说明。其中，第一电极13和第二电极14均采用板状电极，也即基础调光结构10为一VA型液晶盒。第一取向层15和第二取向层16的取向平行，在未给第一电极13和第二电极14加电时，第一液晶层17中的液晶分子和二向色性染料分子都垂直于第一基板和第二基板排列，可以使入射光通过，基础调光结构10呈亮态；在给第一电极13和第二电极14加电，且使得第一电极13和第二电极14之间所产生的电场，控制液晶分子和二向色性染料分子都平行于第一基板和第二基板排列，将入射的沿二向色性染料分子长轴方向的光吸收，以使基础调光结构10呈暗态。当然，在给第一电极13和第二电极14加电，且使得第一电极13和第二电极14之间所产生的电场，控制液晶分子和二向色性染料分子都相较第一基板和第二基板倾斜排列，此时部分光线可以通过基础调光结构10，从而使得基础调光结构10呈灰阶态。
参见表一，在功能调光结构20分别处于亮态、灰阶态、雾态；基础调光结构10分别处于亮态、暗态、灰阶态时，对应的调光玻璃的状态。
表一
调光玻璃 亮态 灰阶态 暗态1 暗态2 隐私保护态
基础调光结构10 亮态 灰阶态 暗态 暗态 亮态
功能调光结构20 亮态 灰阶态 亮态 雾态 雾态
在此需要说明的是，表一中的暗态1和暗态2均代表调光玻璃呈暗态，只 是导致调光玻璃呈暗态的原因不同，也即暗态1为基础调光结构10呈暗态，功能调光结构20呈亮态；暗态2为基础调光结构10呈暗态，功能调光结构20呈雾态。
由此可以看出的是，本实施例中的调光玻璃，通过基础调光结构10和功能调光结构20的相互配合，不仅可以实现调光玻璃不同透过率的控制，而且还可以在基础调光玻璃呈亮态，功能调光玻璃呈雾态时，使得调光玻璃呈隐私保护态，从而使得应用该调光玻璃的车窗、玻璃隔断、建筑玻璃等结构能够实现隐私保护的功能，进而提高用户体验。
在本实施例中基础调光结构10采用上述液晶盒结构时，其盒厚在3.5μm至30μm范围内，其可以根据调光玻璃的透过率适当调整。
在本实施例中功能调光结构20采用上述的液晶盒结构时，其盒厚在5μm至15μm，其可以根据调光玻璃的透过率适当调整。
基础调光结构10中的第二基底12与功能调光玻璃的第三基底21可以共用，因此不需要设置粘结层30，从而可以进一步减小调光玻璃的厚度。
在一个示例中，如图14所示，调光玻璃可以实现彩色调光功能，该调光玻璃不仅包括上述的基础调光结构10和反射式偏光片40，而且还包括功能调光结构20，该功能调光结构20通过粘结层30与基础调光结构背离反射式偏光片40的一侧相固定。该功能调光结构20包括相对设置的第三基板和第四基板，以及设置在第三基板和第四基板之间的第二液晶层27；第二液晶层27包括彩色染料液晶，用于在第三基板和第四基板之间产生的电场的作用下进行偏转，以使功能调光结构20能够呈纯色态；当然，通过第三基板和第四基板之间不同的电场的作用，功能调光结构20还能够呈亮态、暗态或者灰阶态。
具体的，功能调光结构20的第三基板包括：第三基底21，依次设置在第三基底21上的第三电极23和第三取向层25；第四基板包括：第四基底22，依次设置在第四基底22上的第四电极24和第四取向层26；第二液晶层27的材料包括但不限于彩色染料液晶，也即在液晶分子中混合二向色性染料分子。其中，第三电极23和第四电极24均可以采用板状电极，也即功能调光结构20为一VA 型液晶盒结构。
具体的，当不给第三电极23和第四电极24加电时，第三电极23和第四电极24之间的彩色染料液晶中的液晶分子和二向色性染料分子都垂直于第三基底21和第四基底22，此时光线可以通过功能调光结构20，功能调光结构20呈亮态；当给第三电极23和第四电极24加电时，且所施加的电压能够在第三电极23和第四电极24之间产生电场，控制彩色染料液晶中的液晶分子和二向色性染料分子发生偏转，且平行于第三基底21和第四基底22，使得功能调光结构20呈纯色态；而在给第三电极23和第四电极24加电时，且所施加的电压能够在第三电极23和第四电极24之间产生电场，控制彩色染料液晶中的液晶分子和二向色性染料分子发生偏转，非平行于且非垂直于第三基底21和第四基底22，使得功能调光结构20呈灰阶态。
基础调光结构10与上述实施例中的结构相同，故在此不再描述。
参见表二，在功能调光结构20分别处于亮态、灰阶态、暗态、纯色态；基础调光结构10分别处于亮态、暗态、灰阶态时，对应的调光玻璃的状态。
表二
调光玻璃 亮态 灰阶态 暗态 纯色态
基础调光结构10 亮态 灰阶态 暗态 暗态
功能调光结构20 亮态 灰阶态 暗态 纯色态
由此可以看出的是，本实施例中的调光玻璃，通过基础调光结构10和功能调光结构20的相互配合，不仅可以实现调光玻璃不同透过率的控制，而且还可以在基础调光结构呈亮态，功能调光结构呈纯色态时，使得调光玻璃呈彩色。
基础调光结构10中的第二基底12与功能调光玻璃的第三基底21可以共用，从而可以省略粘结层30，这样一来可以进一步减小调光玻璃的厚度。
在一个示例中，如图15所示，与上述示例相类似，该调光玻璃具有显示功能，该调光玻璃不仅包括上述的基础调光结构10和反射式偏光片40，而且还包 括功能调光结构20，该功能调光结构20通过粘结层30与基础调光结构10背离反射式偏光片40的一侧相固定。该功能调光结构20包括相对设置的第三基板和第四基板，以及设置在第三基板和第四基板之间的第二液晶层27；第二液晶层27包括彩色染料液晶或者基础液晶，用于在第三基板和第四基板之间产生的电场的作用下进行偏转，以使功能调光结构20能够进行显示。
具体的，功能调光结构20的第三基板包括：第三基底21，依次设置在第三基底21上的第三电极23和第三取向层25；第四基板包括：第四基底22，依次设置在第四基底22上的第四电极24和第四取向层26；特别的是，第三电极23和第四电极24中的一者为像素电极，另一者则为公共电极，并将像素电极与像素单元对应设置，以通过给像素电极和公共电极施加电压，驱动第二液晶层27的液晶偏转，以实现显示功能。
基础调光结构10中的第二基底12与功能调光玻璃的第三基底21可以共用，从而可以省略粘结层30，这样一来可以进一步减小调光玻璃的厚度。
在一个示例中，如图16所示，调光玻璃可以实现防红外的功能，该调光玻璃不仅包括上述的基础调光结构10和反射式偏光片40，而且还包括功能调光结构20，该功能调光结构20通过粘结层30与基础调光结构10背离反射式偏光片40的一侧相固定。该功能调光结构20包括相对设置的第三基板和第四基板，以及设置在第三基板和第四基板之间的第二液晶层27，用于在第三基板和第四基板之间产生的电场的作用下进行偏转，以使功能调光结构20能够反射红外光。
其中，第二液晶层27可以采用反射红外光的双稳态液晶。在第三基板和第四基板之间的电场的作用下，可以使得双稳态液晶呈P态、H态、FC态。
具体的，功能调光结构20的第三基板包括：第三基底21，依次设置在第三基底21上的第三电极23和第三取向层25；第四基板包括：第四基底22，依次设置在第四基底22上的第四电极24和第四取向层26；其中，第二液晶层27具体可以包括反射红外光的双稳态液晶。
当该双稳态液晶呈P态时，可见光可正常通过功能调光结构20，而红外光则被双稳态液晶反射；当该双稳态液晶呈H态时，可见光和红外光均能够通过 功能调光结构20；当该双稳态液晶呈FC态时，对可见光和红外光进行散射。
基础调光结构10与上述实施例中的结构相同，在此不再赘述。
第一种情况，当基础调光结构10呈亮态，功能调光结构20中的双稳态液晶呈P态时，可见光可以正常通过调光玻璃，而红外光被双稳态液晶反射，该防红外光的智能的调光玻璃处于防红外模式，从而起到防红外的效果。此种调光玻璃可以应用于建筑、车窗等领域，当夏天较热时，开启透光的同时，可以开启防红外模式，阻止红外光进入室内或车窗内，降低室内温度，减小室内或车内空调的能耗，达到节能效果。
第二种情况，当基础调光结构10呈亮态，功能调光结构20中的双稳态液晶呈H态时，可见光和红外光都可以通过调光玻璃。当冬天较冷时，使调光玻璃处于该状态，此时红外线照射至室内或者车内，提高室内或车内温度，可以减少室内或车内的空调能耗，达到节能效果。
第三种情况，当基础调光结构10呈暗态，功能调光结构20中的双稳态液晶呈H态时，仅红外光可以通过调光玻璃。
第四种情况，当基础调光结构10呈暗态，功能调光结构20中的双稳态液晶呈FC态时，调光玻璃为散射暗态，实际上也是暗态。
第五种情况，与上述第一种情况类似，当基础调光结构10呈暗态，功能调光结构20中的双稳态液晶呈P态时，调光玻璃此时为暗态，同时还可以防红外光。
第六种情况，当基础调光结构10呈灰阶态，功能调光结构20中的双稳态液晶呈H态或者FC态时，调光玻璃此时为灰阶态。
第二方面，本公开实施例还提供一种玻璃模组，其包括上述的调光玻璃。
该玻璃模组可以应用在汽车、火车、飞机等交通设施上。也可以应用在建筑智能窗户上。由于本公开实施例中的玻璃模组包括上述的调光玻璃，故其暗态透过率较低，CR较高，且该玻璃模组较为轻薄。
可以理解的是，以上实施方式仅仅是为了说明本公开的原理而采用的示例性实施方式，然而本公开并不局限于此。对于本领域内的普通技术人员而言，在不脱离本公开的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本公开的保护范围。

Claims (20)

  1. 一种调光玻璃，包括基础调光结构和反射式偏光片；其中，所述基础调光结构包括相对设置的第一基板和第二基板，以及设置在所述第一基板和所述第二基板之间的第一液晶层；所述第一液晶层，用于在所述第一基板和所述第二基板之间所产生的电场的控制下进行偏转，以控制光线的透过率；
    所述反射式偏光片位于所述第一基板背离所述液晶层的一侧。
  2. 根据权利要求1所述的调光玻璃，其中，所述第一液晶层包括：基础液晶分子和二向色性染料分子。
  3. 根据权利要求1所述的调光玻璃，其中，所述第一基板包括第一基底，设置在所述第一基底靠近所述第一液晶层一侧的第一电极；所述第二基板包括第二基底，设置在所述第二基底靠近第一液晶层一侧的第二电极；其中，
    所述第一电极和所述第二电极均为板状电极。
  4. 根据权利要求1所述的调光玻璃，其中，所述第一基板包括第一基底，设置在所述第一基底靠近所述第一液晶层一侧的第一电极；所述第二基板包括第二基底，设置在所述第二基底靠近第一液晶层一侧的第二电极；其中，
    所述第一电极和所述第二电极中的一者为板状电极，另一者为条状电极。
  5. 根据权利要求3或4所述的调光玻璃，其中，所述第一基底与所述反射式偏光片通过反射式粘结层连接。
  6. 根据权利要求1所述的调光玻璃，其中，所述反射式偏光片包括APF、DBEF、DLRP中的任意一种。
  7. 根据权利要求1所述的调光玻璃，其中，所述反射式偏光片的厚度小于等于150μm。
  8. 根据权利要求1至7中任一项所述的调光玻璃，其中，在所述反射式偏光片背离所述第一基板的一侧设置有第一保护玻璃；所述第一保护玻璃通过第一粘结层与所述反射式偏光片粘结。
  9. 根据权利要求1至7中任一项所述的调光玻璃，其中，在所述反射式偏光片背离所述第一基板的一侧设置有第一保护玻璃；所述第一保护玻璃通过第一粘结层与所述反射式偏光片粘结；
    在所述第二基板背离所述第一液晶层的第一侧设置有第二保护玻璃；所述第二保护玻璃通过第二粘结层与所述反射式偏光片粘结。
  10. 根据权利要求1所述的调光玻璃，其中，在所述反射式偏光片背离所述第一基板的一侧设置有第一保护玻璃；所述第一保护玻璃通过第一粘结层与所述反射式偏光片粘结；
    在所述第二基板背离所述第一液晶层的第一侧设置有第二保护玻璃，所述第二保护玻璃与所述第二基板之间存在一定的间距，且所述第二保护玻璃通过密封框与所述所述基础调光结构密封。
  11. 根据权利要求1所述的调光玻璃，其中，在所述第二基板背离所述液晶层的一层还设置有功能调光结构；其中，所述功能调光结构包括相对设置的第三基板和第四基板，以及设置在所述第三基板和所述第四基板之间的第二液晶层；所述第二液晶层，用于在所述第三基板和所述第四基板之间的电场控制下进行偏转，以使所述功能调光结构能够呈雾态。
  12. 根据权利要求10所述的调光玻璃，其中，所述第二液晶层包括PNLC或者PDLC。
  13. 根据权利要求12所述的调光玻璃，其中，所述第一液晶层包括反式PNLC。
  14. 根据权利要求1所述的调光玻璃，其中，在所述第二基板背离所述液晶层的一层还设置有功能调光结构；其中，所述功能调光结构包括相对设置的第三基板和第四基板，以及设置在所述第三基板和所述第四基板之间的第二液晶层；所述第二液晶层包括彩色染料液晶，用于在所述第三基板和所述第四基板之间产生的电场的作用下进行偏转，以控制照射至所述功能调光结构上的光线中与所述彩色染料液晶相同颜色光的透过率。
  15. 根据权利要求1所述的调光玻璃，其中，在所述第二基板背离所述液晶 层的一层还设置有功能调光结构；其中，所述功能调光结构包括相对设置的第三基板和第四基板，以及设置在所述第三基板和所述第四基板之间的第二液晶层；所述第三基板包括第三基底，设置在第三基底靠近所述第二液晶层一侧的第三电极；所述第四基板包括第四基底，设置在第四基底靠近所述第二液晶层一侧的第四电极；所述第三电极和所述第四电极被施加电压后形成电场，控制所述第二液晶层偏转，以使所述功能调光结构进行画面显示。
  16. 根据权利要求1所述的调光玻璃，其中，在所述第二基板背离所述液晶层的一层还设置有功能调光结构；其中，所述功能调光结构包括相对设置的第三基板和第四基板，以及设置在所述第三基板和所述第四基板之间的第二液晶层用于在所述第三基板和所述第四基板之间产生的电场的作用下进行偏转，对特定波段的光线进行反射。
  17. 根据权利要求16所述的调光玻璃，其中，所述第二液晶层包括双稳态液晶分子。
  18. 根据权利要求11-17中任一项所述的调光玻璃，其中，所述第二基板包括第二基底，以及设置在所述第二基底靠近所述第一液晶层一侧的第二电极；所述第二基底与所述第三基底通过板间粘结层连接。
  19. 根据权利要求11-17中任一项所述的调光玻璃，其中，所述第二基板包括第二基底，以及设置在所述第二基底靠近所述第一液晶层一侧的第二电极；所述第二基底与所述第三基底共用。
  20. 一种玻璃模组，包括权利要求1-19中任一项所述的调光玻璃。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3127826A1 (fr) * 2021-10-06 2023-04-07 Saint-Gobain Glass France SYSTEME OPTIQUE A cristaux liquides
FR3127827A1 (fr) * 2021-10-06 2023-04-07 Saint-Gobain Glass France SYSTEME OPTIQUE A cristaux liquides

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220305998A1 (en) * 2021-03-23 2022-09-29 Wicue, Inc. Dimmable car external rearview mirror device
CN113848666B (zh) * 2021-09-26 2024-04-16 合肥京东方光电科技有限公司 调光装置及其装配方法、调光窗
CN113917767A (zh) * 2021-10-18 2022-01-11 京东方科技集团股份有限公司 车载摄像头装置、车载摄像头总成及车辆
CN114185206B (zh) 2021-11-29 2022-08-26 绵阳惠科光电科技有限公司 防窥功能结构、显示面板及显示设备
CN114280840B (zh) * 2021-12-28 2023-10-13 上海天马微电子有限公司 一种调光玻璃和玻璃模组
CN114758587B (zh) * 2022-04-24 2023-11-28 Tcl华星光电技术有限公司 显示面板及移动终端
CN116990999A (zh) * 2022-04-25 2023-11-03 北京京东方传感技术有限公司 调光面板及其制备方法、调光方法及设备
US12204195B2 (en) 2023-02-15 2025-01-21 Innolux Corporation Electronic device
KR20240130199A (ko) * 2023-02-21 2024-08-29 동우 화인켐 주식회사 투과율 가변 광학 적층체 및 이의 제조방법과, 이를 포함하는 스마트 윈도우
CN121057976A (zh) * 2023-04-26 2025-12-02 福耀玻璃工业集团股份有限公司 调光组件与车辆
CN121464038A (zh) * 2023-07-06 2026-02-03 唯酷美国有限公司 一种黑色pdlc调光膜及调光玻璃
CN118759763A (zh) * 2024-07-01 2024-10-11 深圳市华星光电半导体显示技术有限公司 调光模组
CN120522938A (zh) * 2025-07-23 2025-08-22 上海追得新材料科技有限公司 一种双层交错菲涅尔透镜结构可变形电致调光薄膜

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204374563U (zh) * 2014-12-29 2015-06-03 明基材料有限公司 调光装置
CN108139636A (zh) * 2015-10-30 2018-06-08 夏普株式会社 切换反射镜面板及切换反射镜元件
CN208730757U (zh) * 2018-06-13 2019-04-12 信利光电股份有限公司 一种电致变色天窗
WO2019097935A1 (ja) * 2017-11-17 2019-05-23 株式会社東海理化電機製作所 車両用インナミラー
CN209560222U (zh) * 2019-04-08 2019-10-29 江苏集萃智能液晶科技有限公司 一种智能调光镜
CN209640654U (zh) * 2019-05-24 2019-11-15 京东方科技集团股份有限公司 调光玻璃
CN211454169U (zh) * 2019-12-12 2020-09-08 京东方科技集团股份有限公司 调光玻璃及玻璃模组

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5963187A (en) * 1994-06-10 1999-10-05 Casio Computer Co., Ltd. Liquid crystal display apparatus using liquid crystal having ferroelectric phase and method of driving liquid crystal display device using liquid crystal having ferroelectric phase
EP2062095A4 (en) * 2006-08-29 2010-04-14 Serious Materials Inc ELECTRICALLY CONTROLLED TRANSMISSION AND REFLECTION WINDOWS
KR20090080133A (ko) * 2006-11-17 2009-07-23 니폰 오일 코포레이션 (신 니혼 세키유 가부시키 가이샤) 타원편광판 및 이것을 이용한 수직배향형 액정표시장치
KR101286529B1 (ko) * 2007-05-18 2013-07-17 엘지디스플레이 주식회사 액정 표시 장치
WO2011158569A1 (ja) * 2010-06-15 2011-12-22 シャープ株式会社 調光素子、表示装置、照明装置及び調光素子の製造方法
CN104280953A (zh) * 2014-10-24 2015-01-14 京东方科技集团股份有限公司 一种显示面板及其制作方法
CN105759469B (zh) * 2014-12-18 2019-07-12 苏州汉朗光电有限公司 多功能调光玻璃及其制作方法
JP2016191870A (ja) * 2015-03-31 2016-11-10 三菱電機株式会社 液晶表示装置
CN104793381B (zh) * 2015-04-03 2018-02-02 华南师范大学 一种电响应红外反射窗及红外光反射方法
KR20170059054A (ko) * 2015-11-19 2017-05-30 삼성디스플레이 주식회사 액정 표시 장치
CN205563023U (zh) * 2016-02-17 2016-09-07 明基材料有限公司 高分子分散液晶装置
CN109983395B (zh) * 2016-10-13 2022-12-23 大日本印刷株式会社 遮阳板、调光装置、车辆
TWI655487B (zh) * 2016-12-23 2019-04-01 南韓商Ｌｇ化學股份有限公司 反射率可變的反射鏡
CN108303812B (zh) * 2017-01-12 2019-11-05 江苏集萃智能液晶科技有限公司 一种具有调光功能的后视镜
TWI661223B (zh) * 2017-04-28 2019-06-01 南韓商Ｌｇ化學股份有限公司 光調變裝置及眼睛佩戴物
EP4517417A3 (en) * 2017-12-28 2025-05-28 Toppan Printing Co., Ltd. Light control sheet and light control window

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204374563U (zh) * 2014-12-29 2015-06-03 明基材料有限公司 调光装置
CN108139636A (zh) * 2015-10-30 2018-06-08 夏普株式会社 切换反射镜面板及切换反射镜元件
WO2019097935A1 (ja) * 2017-11-17 2019-05-23 株式会社東海理化電機製作所 車両用インナミラー
CN208730757U (zh) * 2018-06-13 2019-04-12 信利光电股份有限公司 一种电致变色天窗
CN209560222U (zh) * 2019-04-08 2019-10-29 江苏集萃智能液晶科技有限公司 一种智能调光镜
CN209640654U (zh) * 2019-05-24 2019-11-15 京东方科技集团股份有限公司 调光玻璃
CN211454169U (zh) * 2019-12-12 2020-09-08 京东方科技集团股份有限公司 调光玻璃及玻璃模组

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4075190A4 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3127826A1 (fr) * 2021-10-06 2023-04-07 Saint-Gobain Glass France SYSTEME OPTIQUE A cristaux liquides
FR3127827A1 (fr) * 2021-10-06 2023-04-07 Saint-Gobain Glass France SYSTEME OPTIQUE A cristaux liquides
WO2023057719A1 (fr) * 2021-10-06 2023-04-13 Saint-Gobain Glass France Systeme optique a cristaux liquides
WO2023057721A1 (fr) * 2021-10-06 2023-04-13 Saint-Gobain Glass France Systeme optique a cristaux liquides
CN116235104A (zh) * 2021-10-06 2023-06-06 法国圣戈班玻璃厂 液晶光学系统
US12416841B2 (en) 2021-10-06 2025-09-16 Saint-Gobain Glass France Liquid-crystal optical system
US12504652B2 (en) 2021-10-06 2025-12-23 Saint-Gobain Glass France Liquid-crystal optical system

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