CN115685603A - Dimming glass and glass assembly - Google Patents
Dimming glass and glass assembly Download PDFInfo
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- CN115685603A CN115685603A CN202110835490.7A CN202110835490A CN115685603A CN 115685603 A CN115685603 A CN 115685603A CN 202110835490 A CN202110835490 A CN 202110835490A CN 115685603 A CN115685603 A CN 115685603A
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- 239000011521 glass Substances 0.000 title claims abstract description 185
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 140
- 239000000758 substrate Substances 0.000 claims abstract description 53
- 238000002834 transmittance Methods 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 260
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- 238000004519 manufacturing process Methods 0.000 description 2
- 229910004205 SiNX Inorganic materials 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
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- 239000004984 smart glass Substances 0.000 description 1
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- 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
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- 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
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- 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
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- 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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
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- Mathematical Physics (AREA)
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Abstract
The present disclosure provides a light control glass and a glass assembly, the light control glass is formed with at least two different regions, and the light control glass includes: a first substrate; a second substrate disposed opposite to the first substrate; a dimming liquid crystal layer between the first substrate and the second substrate; a first electrode positioned on one side of the first substrate facing the dimming liquid crystal layer; a second electrode on a side of the second substrate facing the dimming liquid crystal layer; the second electrodes corresponding to different regions are electrically connected; when the same voltage is applied between the first electrode and the second electrode, the light transmittance of the dimming liquid crystal layer corresponding to different kinds of regions is different.
Description
Technical Field
The disclosure relates to the technical field of display glass, in particular to dimming glass and a glass component.
Background
The dimming glass is also called as atomization glass, electric control glass and intelligent dimming photochromic glass, and the light transmittance of the dimming glass can be changed by adjusting the input voltage. At present, the light-adjusting glass is widely applied to the fields of high-speed rail windows, automobile windows, building curtain walls and the like.
The dye liquid crystal dimming glass realizes switching between a bright state and a dark state by utilizing selective absorption of dichroic dye molecules in liquid crystal to light, and greatly improves optical properties such as black state purity, response time and the like.
Disclosure of Invention
The embodiment of the disclosure provides dimming glass and a glass component, which are used for reducing the adjusting difficulty of the intermediate brightness of the dimming glass and improving the overall display effect of the dimming glass.
Accordingly, embodiments of the present disclosure provide a light control glass formed with at least two different regions, the light control glass comprising:
a first substrate;
a second substrate disposed opposite to the first substrate;
a dimming liquid crystal layer between the first substrate and the second substrate;
a first electrode positioned on one side of the first substrate facing the dimming liquid crystal layer;
a second electrode on a side of the second substrate facing the dimming liquid crystal layer; the second electrodes corresponding to the different kinds of the regions are electrically connected; wherein,
when the same voltage is applied between the first electrode and the second electrode, the light transmittance of the light control liquid crystal layer is different for the regions of different types.
Optionally, in the above light control glass provided by the embodiment of the present disclosure, the light control glass further includes a voltage division layer, the voltage division layer is located between at least one of the second electrodes corresponding to the regions and the light control liquid crystal layer, and the voltage division layer is used for making driving voltages of the light control liquid crystal layers corresponding to the different regions different.
Optionally, in the above light control glass provided by the embodiment of the present disclosure, thicknesses of respective positions in the light control liquid crystal layer are the same.
Optionally, in the above light control glass provided by the embodiment of the present disclosure, the number of each same region is multiple, and different regions are alternately arranged.
Optionally, in the above light control glass provided by the embodiment of the present disclosure, one of the regions is not provided with the voltage division layers, and a surface of each voltage division layer away from the second substrate is flush with a surface of the second electrode away from the second substrate corresponding to the region where the voltage division layer is not provided.
Optionally, in the light control glass provided by the embodiment of the present disclosure, each of the regions is provided with the voltage division layer, and a surface of each of the voltage division layers, which is far away from the second substrate, is flush.
Optionally, in the above light control glass provided by the embodiment of the present disclosure, at least two different regions are provided with the voltage division layer, and the at least two different regions satisfy at least one of the following conditions:
the dielectric constants of partial pressure layers corresponding to different regions are different;
the different regions have different thicknesses of the corresponding pressure-separation layers.
Optionally, in the above light control glass provided by the embodiment of the present disclosure, the light control glass is formed with a plurality of first regions and a plurality of second regions extending along a first direction and alternately arranged along a second direction, and the first direction and the second direction are arranged to intersect;
the second electrode that first region corresponds with between the liquid crystal layer of adjusting luminance and the second electrode that the second region corresponds with adjust luminance all have between the liquid crystal layer the pressure-dividing layer, first region corresponds the pressure-dividing layer with the second region corresponds the thickness of pressure-dividing layer is the same, first region corresponds the pressure-dividing layer with the second region corresponds the dielectric constant of pressure-dividing layer is different.
Optionally, in the above light control glass provided by the embodiment of the present disclosure, the light control glass is formed with a plurality of first regions and a plurality of second regions extending along a first direction and alternately arranged along a second direction, and the first direction and the second direction are arranged to intersect;
the first region is not provided with the voltage division layer, and the voltage division layer is arranged between the second electrode corresponding to the second region and the dimming liquid crystal layer.
Optionally, in the above light control glass provided in the embodiment of the present disclosure, the light control glass is formed with a plurality of first regions, a plurality of second regions and a plurality of third regions extending along a first direction and alternately arranged along a second direction, and the first direction and the second direction are arranged to intersect;
the voltage division layers are arranged between the second electrode corresponding to the first area and the dimming liquid crystal layer, between the second electrode corresponding to the second area and the dimming liquid crystal layer and between the second electrode corresponding to the third area and the dimming liquid crystal layer;
the thicknesses of the pressure-dividing layer corresponding to the first region, the pressure-dividing layer corresponding to the second region, and the pressure-dividing layer corresponding to the third region are the same, and the dielectric constants of the pressure-dividing layer corresponding to the first region, the pressure-dividing layer corresponding to the second region, and the pressure-dividing layer corresponding to the third region are different from each other.
Optionally, in the above light control glass provided by the embodiment of the present disclosure, the light control glass is formed with a plurality of first regions, a plurality of second regions, and a plurality of third regions extending along a first direction and alternately arranged along a second direction, and the first direction and the second direction are arranged to intersect;
the first region is not provided with the voltage division layer, and the voltage division layer is arranged between the second electrode corresponding to the second region and the dimming liquid crystal layer and between the second electrode corresponding to the third region and the dimming liquid crystal layer;
the dielectric constant of the laminated layer corresponding to the second region is the same as that of the laminated layer corresponding to the third region, and the thickness of the laminated layer corresponding to the third region is greater than that of the laminated layer corresponding to the second region.
Optionally, in the above light control glass provided by the embodiment of the present disclosure, the light control glass is formed with a plurality of first regions, a plurality of second regions, and a plurality of third regions extending along a first direction and alternately arranged along a second direction, and the first direction and the second direction are arranged to intersect;
the first region is not provided with the voltage division layer, and the voltage division layer is arranged between the second electrode corresponding to the second region and the dimming liquid crystal layer and between the second electrode corresponding to the third region and the dimming liquid crystal layer;
the thicknesses of the partial pressure layers corresponding to the second region and the third region are the same, and the dielectric constant of the partial pressure layer corresponding to the third region is different from that of the partial pressure layer corresponding to the second region.
Optionally, in the light control glass provided in the embodiment of the present disclosure, except for the second electrode corresponding to the region having the larger distance from the first electrode, the rest of the regions further include a padding layer located between the corresponding second electrode and the second substrate, and the padding layer is made of a transparent dielectric layer.
Optionally, in the light control glass provided in the embodiment of the present disclosure, the material of the voltage division layer is a transparent dielectric layer.
Optionally, in the above light control glass provided in the embodiment of the present disclosure, the thickness of the voltage division layer is 1 μm to 5 μm.
Optionally, in the light control glass provided by the embodiment of the present disclosure, along the second direction, a width of each of the regions is less than 100 μm.
Optionally, in the light control glass provided by the embodiment of the present disclosure, along the second direction, a width of each of the regions is 10 μm to 80 μm.
Optionally, in the light control glass provided by the embodiment of the present disclosure, the second electrodes corresponding to each of the regions are electrically connected through a connection portion, and an included angle between the connection portion and the second electrode is greater than or equal to 90 °.
Optionally, in the above light control glass provided by the embodiment of the present disclosure, a shape of a side wall of the connection portion, which is away from the voltage division layer, is a plane or a curved surface, and a shape of a side wall of the connection portion, which is in contact with the voltage division layer, is a plane or a curved surface.
Optionally, in the light control glass provided in the embodiments of the present disclosure, the light control glass is in a normally white mode, and the light control liquid crystal layer includes negative liquid crystal molecules and dichroic dye molecules.
Optionally, in the above light control glass provided by the embodiment of the present disclosure, the light control glass is in a normally black mode, and the light control liquid crystal layer includes positive liquid crystal molecules and dichroic dye molecules.
Optionally, in the above light control glass provided in the embodiment of the present disclosure, the light control liquid crystal layer is liquid crystal molecules, and the light control glass further includes: and the second polaroid is positioned on one side of the dimming liquid crystal layer and deviates from the first baseplate.
Correspondingly, the embodiment of the disclosure also provides a glass assembly comprising the dimming glass.
Drawings
Fig. 1A is a schematic structural diagram of a conventional light control glass in a measurement state;
fig. 1B is a schematic structural view of a conventional light control glass in a dark state;
FIG. 2 is a schematic view of a VT curve of a conventional light control glass;
fig. 3 is a schematic structural diagram of a light control glass according to an embodiment of 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 another light control glass provided in the embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of another light control glass provided in the embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of another light control glass provided in the embodiment of the present disclosure;
fig. 9 is a schematic top view of the first and second regions of fig. 3 and 4;
fig. 10 is a schematic top view of the first, second and third regions of fig. 5-7;
FIG. 11 is a graph illustrating the corresponding adjusted VT curve of FIG. 4;
FIG. 12 is a schematic view of a VT curve obtained with the structure shown in FIG. 4 using different thicknesses of the partial pressure layer;
fig. 13 is a schematic structural diagram of another light control glass provided in the embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure clearer, the present disclosure will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present disclosure, but not all of the embodiments. All other embodiments, which can be derived by one of ordinary skill in the art from the embodiments disclosed herein without making any creative effort, shall fall within the scope of protection of the present disclosure.
The shapes and sizes of the various elements in the drawings are not to be considered as true proportions, but are merely intended to illustrate the present disclosure.
The light control glass can be divided into a normally black mode and a normally white mode, and taking the normally white mode as an example, the display principle of the existing dye liquid crystal light control glass is shown in fig. 1A and 1B, and the light control glass comprises: a first substrate 1 and a second substrate 2 disposed opposite to each other, a dimming liquid crystal layer 3 between the first substrate 1 and the second substrate 2, a first electrode 4 between the first substrate 1 and the dimming liquid crystal layer 3, and a second electrode 5 between the second substrate 2 and the dimming liquid crystal layer 3; the first electrode 4 and the second electrode 5 both adopt an entire ITO film layer as a conductive electrode, the dimming liquid crystal layer 3 is formed by mixing a negative liquid crystal 31 and dichroic dye molecules 32, the dichroic dye molecules 32 can rotate along with the negative liquid crystal 31, and the light absorption amount of the dichroic dye molecules gradually increases along with the rotation angle. When the driving voltage is 0V, the negative liquid crystal 31 and the dichroic dye molecules 32 do not rotate, and absorb light minimally, and are in a bright state, as shown in fig. 1A; when the driving voltage is 10V, the rotation angle of the negative liquid crystal 31 and the dichroic dye molecules 32 reaches a maximum of 90 degrees, and the amount of light absorption also reaches a maximum, and a dark state is exhibited as shown in fig. 1B.
The curve (VT curve) of the transmittance of the existing light control glass changing with the applied driving voltage is shown in fig. 2, when the applied driving voltage is 2-4V, the slope of the VT curve is large, the transmittance can be changed drastically by a small increase of the applied driving voltage, and the dimming amount corresponding to the section accounts for about 80% of the total dimming amount, which brings great difficulty to the adjustment and control of the intermediate state brightness of the light control glass, puts higher requirements on the output accuracy of the driving system and the uniformity of the light control glass, and limits the development of the light control glass.
In order to solve the above problems in the prior art, embodiments of the present disclosure provide a light control glass, as shown in fig. 3 to 7, formed with at least two different regions, the light control glass including:
a first substrate 1;
a second substrate 2 disposed opposite to the first substrate 1;
a dimming liquid crystal layer 3 between the first substrate 1 and the second substrate 2;
a first electrode 4 located on a side of the first substrate 1 facing the dimming liquid crystal layer 3;
a second electrode 5 on a side of the second substrate 2 facing the dimming liquid crystal layer 3; the second electrodes 5 corresponding to different regions are electrically connected, that is, the second electrodes 5 are in a structure arranged on the whole surface; specifically, fig. 3 and 4 are examples in which the light control glass is divided into two different regions (A1, A2), and fig. 5 to 7 are examples in which the light control glass is divided into three different regions (A1, A2, A3); wherein,
when the same voltage is applied between the first electrode 4 and the second electrode 5, the light transmittance of the light control liquid crystal layer 3 differs for different kinds of regions.
According to the light control glass provided by the embodiment of the disclosure, the light control glass is divided into at least two different regions, and under the condition that the same voltage is applied between the first electrode 4 and the second electrode 5, the light transmittance of the light control liquid crystal layer 3 corresponding to the different regions is different, so that the brightness of the glass corresponding to the different regions is different, and the brightness of the glass felt by human eyes is the comprehensive effect of the brightness corresponding to the different regions, so that the effect of reducing the slope of the whole VT curve is achieved. The improvement is beneficial to the adjustment and control of the middle brightness of the dimming glass, the integral display effect of the dimming glass can be improved, and the application scene of the product is widened. And the design scheme has no influence on the dark state and bright state transmittance of the dimming glass.
In specific implementation, as shown in fig. 3 to 7, the light control glass provided in the embodiment of the present disclosure further includes a voltage division layer 6, where the voltage division layer 6 is located between the second electrode 5 and the light control liquid crystal layer 3 corresponding to at least one region, and the voltage division layer 6 is used to make driving voltages of the light control liquid crystal layer 3 corresponding to different regions different; specifically, fig. 3 illustrates an example in which the voltage-dividing layer 6 is provided between the second electrode 5 and the dimming liquid crystal layer 3 corresponding to two regions (A1, A2), fig. 4 illustrates an example in which the voltage-dividing layer 6 is provided between the second electrode 5 and the dimming liquid crystal layer 3 corresponding to the region A2, fig. 5 illustrates an example in which the voltage-dividing layer 6 is provided between the second electrode 5 and the dimming liquid crystal layer 3 corresponding to three regions (A1, A2, A3), and fig. 6 and 7 illustrate an example in which the voltage-dividing layer 6 is provided between the second electrode 5 and the dimming liquid crystal layer 3 corresponding to two regions (A2, A3).
The voltage division of the series capacitors is shown in the following formula (1), wherein the charge quantity Q of each capacitor is equal, and the larger the capacitor (e.g. C1) is, the lower the voltage V1 distributed by the capacitor is. The first electrode 4, the dimming liquid crystal layer 3 and the second electrode 5 in the dimming glass structure form a liquid crystal capacitor, and the liquid crystal capacitor is connected in series with a voltage-dividing capacitor by using the principle of capacitor voltage division, so that the voltage actually loaded on the liquid crystal capacitor can be reduced, and if the transmittance is the same as that of the original transmittance, the external driving voltage needs to be increased, so that the VT curve can be moved to the right.
According to the embodiment of the disclosure, the dimming glass is divided into at least two different regions, the voltage division layer is arranged between the second electrode corresponding to at least one region and the dimming liquid crystal layer, and the voltage division layer is connected in series with the liquid crystal capacitor formed by the first electrode, the dimming liquid crystal layer and the second electrode, when external driving voltage is applied to the first electrode and the second electrode, the voltage actually applied to the dimming liquid crystal layer is smaller than the external driving voltage, so that the brightness of glass corresponding to different regions is different, the brightness of glass sensed by human eyes is the comprehensive effect of the brightness corresponding to different regions, and the effect of reducing the slope of the whole VT curve is achieved. The improvement is beneficial to the adjustment and control of the middle brightness of the dimming glass, the integral display effect of the dimming glass can be improved, and the application scenes of products are widened. And the design scheme has no influence on the dark state and bright state transmittance of the dimming glass.
In practical implementation, in order to make the brightness of the glass corresponding to various regions only related to the voltage applied to the dimming liquid crystal layer, in the dimming glass provided in the embodiment of the present disclosure, as shown in fig. 3 to 7, the thicknesses of the various positions in the dimming liquid crystal layer 3 are the same. The thicknesses of all positions are the same, namely the thicknesses of the dimming liquid crystal layer 3 in different areas are the same; the thicknesses referred to herein are the same, and may have a tolerance of + -10%, for example, if the thickness of the liquid crystal layer in one region is 95% of the thickness of the liquid crystal layer in another region, the thicknesses are considered to be the same.
Of course, in specific implementation, as shown in fig. 9, the thicknesses of the dimming liquid crystal layers 3 corresponding to different regions may also be different, and the embodiment of the present disclosure preferably adopts the scheme that the thicknesses of the dimming liquid crystal layers 3 in fig. 3 to 7 are the same.
In specific implementation, in the light control glass provided by the embodiment of the present disclosure, the number of each of the same regions may be multiple, and the different regions are alternately arranged; specifically, as shown in fig. 9 and 10, fig. 9 is a schematic view of the regions A1 and A2 of fig. 3 and 4 alternately arranged, and fig. 10 is a schematic view of the regions A1, A2, and A3 of fig. 5-7 alternately arranged. Therefore, the voltage loaded on the dimming liquid crystal layer 3 corresponding to each region can be regulated and controlled, so that different regions obtain different brightness, the glass brightness sensed by human eyes is the comprehensive effect of the brightness corresponding to the different regions, and the effect of reducing the slope of the whole VT curve is achieved.
In specific implementation, in the above-mentioned light control glass provided in the embodiment of the present disclosure, as shown in fig. 4, fig. 6 and fig. 7, one region is not provided with the voltage division layer 6, and a surface of each voltage division layer 6 away from the second substrate 2 is flush with a surface of the second electrode 2 away from the second substrate 5 corresponding to the region where the voltage division layer 6 is not provided, so that it is possible to ensure that the thicknesses of the light control liquid crystal layer 3 corresponding to each region are uniform. Specifically, as shown in fig. 4, the surface of the partial pressure layer 6 away from the second substrate 2 is flush with the surface of the second electrode 5 corresponding to the area A1; as shown in fig. 6 and 7, the surface of each partial pressure layer 6 away from the second substrate 2 is flush with the surface of the second electrode 5 corresponding to the area A1.
In practical implementation, in the above-mentioned light control glass provided in the embodiment of the present disclosure, as shown in fig. 3 and 5, the voltage division layer 6 is disposed in each area, and a surface of each voltage division layer 6 away from the second substrate 2 is flush.
In specific implementation, in the above light control glass provided by the embodiment of the present disclosure, the voltage division layer is disposed in at least two different regions, and the at least two different regions satisfy at least one of the following conditions:
the dielectric constants of the partial pressure layers corresponding to different kinds of areas are different;
the different kinds of regions correspond to different thicknesses of the laminated layers.
Specifically, the thickness of the voltage-dividing layer can be fixed, and the voltage-dividing layer is made of materials with different dielectric constants, so that the voltage division of the voltage-dividing layer corresponding to different regions is different, and the voltage actually loaded on the dimming liquid crystal layer corresponding to different regions is different; the dielectric constant of the voltage division layers can be fixed, and the voltage division layers with different thicknesses are made of the same material, so that the voltage division of the voltage division layers corresponding to different areas is different, and the voltage actually loaded on the dimming liquid crystal layers corresponding to the different areas is different; the voltage division layers with different thicknesses can be manufactured by adopting materials with different dielectric constants, so that the voltage division of the voltage division layers corresponding to different regions is different, and the voltage actually loaded on the dimming liquid crystal layers corresponding to the different regions is different.
In practical implementation, in the above-mentioned light control glass provided in the embodiments of the present disclosure, as shown in fig. 3 to 7, the light control glass may be in a normally white mode, and the light control liquid crystal layer 3 includes negative liquid crystal molecules 31 and dichroic dye molecules 32. Due to the interaction between the dichroic dye molecules 32 and the negative liquid crystal molecules 31, under the action of an electric field, the dichroic dye molecules 32 rotate along with the rotation of the negative liquid crystal molecules 31, and the adjustment of different transmittances of the light control glass can be realized according to the difference of the absorption effect of the dichroic dye molecules 32 on polarized light.
In specific implementation, in the light control glass provided in the embodiment of the present disclosure, as shown in fig. 3 and 9, the light control glass is formed with a plurality of first regions A1 and a plurality of second regions A2 extending along a first direction X and alternately arranged along a second direction Y, and the first direction X and the second direction Y are arranged to intersect;
the voltage division layers 6 are respectively arranged between the second electrode 5 corresponding to the first area A1 and the dimming liquid crystal layer 3 and between the second electrode 5 corresponding to the second area A2 and the dimming liquid crystal layer 3, the voltage division layer 6 corresponding to the first area A1 and the voltage division layer 6 corresponding to the second area A2 have the same thickness, and the voltage division layer 6 corresponding to the first area a12 and the voltage division layer 6 corresponding to the second area A2 have different dielectric constants. Thus, when the external driving voltage V is applied to the first electrode 4 and the second electrode 5, the actual voltage applied to the dimming liquid crystal layer 3 corresponding to the first area A1 is different from the actual voltage applied to the dimming liquid crystal layer 3 corresponding to the second area A2, and thus the luminance corresponding to the first area A1 and the luminance corresponding to the second area A2 are different, for example, the luminance corresponding to the first area A1 is L1 (dark state), the luminance corresponding to the second area A2 is L2 (has a certain luminance), and the actual luminance seen by human eyes is the integrated luminance L3 (luminance between L1 and L2) of L1 and L2.
In specific implementation, in the light control glass provided in the embodiment of the present disclosure, as shown in fig. 4 and 9, the light control glass is formed with a plurality of first regions A1 and a plurality of second regions A2 extending along a first direction X and alternately arranged along a second direction Y, and the first direction X and the second direction Y are arranged to intersect;
the first region A1 is not provided with the voltage-dividing layer 6, and the second region A2 has the voltage-dividing layer 6 between the second electrode 5 and the dimming liquid crystal layer 3. Thus, the voltage dividing layer 6 corresponding to the second area A2 performs a voltage dividing function, when the external driving voltage V is applied to the first electrode 4 and the second electrode 5, the actual voltage applied to the dimming liquid crystal layer 3 corresponding to the second area A2 is smaller than the actual voltage applied to the dimming liquid crystal layer 3 corresponding to the first area A1, so that the VT curve B1 at the second area A2 is shifted to the right with respect to the VT curve B2 at the first area A1, thereby achieving an effect of reducing the slope of the entire VT curve, as shown in fig. 11, so that the luminance corresponding to the first area A1 and the luminance corresponding to the second area A2 are different (the transmittance is different), and the VT curve corresponding to the luminance is B3. For example, as shown in fig. 4, for example, if the luminance corresponding to the first area A1 is L1 (dark state), and the luminance corresponding to the second area A2 is L2 (with a certain luminance), the actual luminance seen by human eyes is the integrated luminance L3 (luminance between L1 and L2) of L1 and L2. Specifically, the VT curve B1 at the second area A2 is shifted to the right relative to the VT curve B2 at the first area A1, which is favorable for adjusting and controlling the intermediate brightness of the light control glass, so that the overall display effect of the light control glass can be improved, and the application scenarios of the product can be widened. And the design scheme has no influence on the dark state and bright state transmittance of the dimming glass.
In specific implementation, in the light control glass provided in the embodiment of the present disclosure, as shown in fig. 5 and 10, the light control glass is formed with a plurality of first regions A1, a plurality of second regions A2, and a plurality of third regions A3 extending in the first direction X and alternately arranged in the second direction Y, and the first direction X and the second direction Y are arranged to intersect;
the voltage division layers 6 are arranged between the second electrode 5 corresponding to the first area A1 and the dimming liquid crystal layer 3, between the second electrode 5 corresponding to the second area A2 and the dimming liquid crystal layer 3, and between the second electrode 5 corresponding to the third area A3 and the dimming liquid crystal layer 3;
the thicknesses of the partial pressure layer 6 corresponding to the first area A1, the partial pressure layer 6 corresponding to the second area A2, and the partial pressure layer 6 corresponding to the third area A3 are the same, and the dielectric constants of the partial pressure layer 6 corresponding to the first area A1, the partial pressure layer 6 corresponding to the second area A2, and the partial pressure layer 6 corresponding to the third area A3 are different from each other. Thus, the voltage dividing capability of each voltage dividing layer 6 corresponding to the first, second, and third regions A1, A2, and A3 is different from each other, and when the external driving voltage V is applied to the first electrode 4 and the second electrode 5, the actual voltage applied to the dimming liquid crystal layer 3 corresponding to the first region A1, the actual voltage applied to the dimming liquid crystal layer 3 corresponding to the second region A2, and the actual voltage applied to the dimming liquid crystal layer 3 corresponding to the third region A3 are different from each other, so that the luminances corresponding to the first, second, and third regions A1, A2, and A3 are different, for example, the luminance corresponding to the first region A1 is L1 (dark state), the luminance corresponding to the second region A2 is L2 (first luminance), the luminance corresponding to the third region A3 is L3 (second luminance, which is greater than the first luminance), and the actual luminance seen by human eyes is the combined luminance L4 of L1, L2, and L3.
In specific implementation, in the light control glass provided in the embodiment of the present disclosure, as shown in fig. 6 and 10, the light control glass is formed with a plurality of first areas A1, a plurality of second areas A2, and a plurality of third areas A3 extending along the first direction X and alternately arranged along the second direction Y, and the first direction X and the second direction Y are arranged to intersect;
the first region A1 is not provided with the voltage division layer 6, and the voltage division layer 6 is respectively arranged between the second electrode 5 corresponding to the second region A2 and the dimming liquid crystal layer 3 and between the second electrode 5 corresponding to the third region A3 and the dimming liquid crystal layer 3;
the dielectric constant of the partial pressure layer 6 corresponding to the second area A2 is the same as that of the partial pressure layer 6 corresponding to the third area A3, and the thickness of the partial pressure layer 6 corresponding to the third area A3 is greater than that of the partial pressure layer 6 corresponding to the second area A2. Thus, the voltage dividing layer 6 corresponding to the second area A2 and the voltage dividing layer 6 corresponding to the third area A3 perform a voltage dividing function, when the external driving voltage V is applied to the first electrode 4 and the second electrode 5, both the actual voltage applied to the dimming liquid crystal layer 3 corresponding to the second area A2 and the actual voltage applied to the dimming liquid crystal layer 3 corresponding to the third area A3 are less than the actual voltage applied to the dimming liquid crystal layer 3 corresponding to the first area A1, since the dielectric constants of the voltage dividing layer 6 corresponding to the second area A2 and the voltage dividing layer 6 corresponding to the third area A3 are the same, and the thickness of the voltage dividing layer 6 corresponding to the third area A3 is greater than the thickness of the voltage dividing layer 6 corresponding to the second area A2, the voltage dividing capacities of the voltage dividing layer 6 corresponding to the second area A2 and the voltage dividing layer 6 corresponding to the third area A3 are different, so that the luminances corresponding to the first area A1, the second area A2 and the third area A3 are different, for example, the luminance corresponding to the first area A1 (the dark state luminance), the second area A2 is the first luminance (L3), and the actual luminance is the luminance of the human eye (the first luminance), and the second luminance is the second luminance L3), and the third luminance (the luminance) is the luminance of the human eye).
In specific implementation, in the light control glass provided in the embodiment of the present disclosure, as shown in fig. 7 and 10, the light control glass is formed with a plurality of first regions A1, a plurality of second regions A2, and a plurality of third regions A3 extending in the first direction X and alternately arranged in the second direction Y, and the first direction X and the second direction Y are arranged to intersect;
the first region A1 is not provided with the voltage division layer 6, and the voltage division layer 6 is respectively arranged between the second electrode 5 corresponding to the second region A2 and the dimming liquid crystal layer 3 and between the second electrode 5 corresponding to the third region A3 and the dimming liquid crystal layer 3;
the thicknesses of the partial pressure layer 6 corresponding to the second area A2 and the partial pressure layer 6 corresponding to the third area A3 are the same, and the dielectric constant of the partial pressure layer 6 corresponding to the third area A3 is different from the dielectric constant of the partial pressure layer 6 corresponding to the second area A2. Thus, the voltage dividing layer 6 corresponding to the second area A2 and the voltage dividing layer 6 corresponding to the third area A3 perform voltage dividing, when the external driving voltage V is applied to the first electrode 4 and the second electrode 5, both the actual voltage applied to the dimming liquid crystal layer 3 corresponding to the second area A2 and the actual voltage applied to the dimming liquid crystal layer 3 corresponding to the third area A3 are smaller than the actual voltage applied to the dimming liquid crystal layer 3 corresponding to the first area A1, because the thicknesses of the voltage dividing layer 6 corresponding to the second area A2 and the voltage dividing layer 6 corresponding to the third area A3 are the same, and the dielectric constant of the voltage dividing layer 6 corresponding to the third area A3 is different from the dielectric constant of the voltage dividing layer 6 corresponding to the second area A2, the voltage dividing capacities of the voltage dividing layer 6 corresponding to the second area A2 and the voltage dividing layer 6 corresponding to the third area A3 are different, the luminances corresponding to the first area A1, the second area A2 and the third area A3 are different, for example, the luminance corresponding to the first area A1 (the luminance corresponding to the second area A2) is L1), the luminance corresponding to the second area A3, and the luminance of the third area A3 is greater than the luminance of the actual luminance (the luminance of the human eye), and the luminance corresponding to the first luminance (the luminance) of the human eye), and the second luminance of the human eye (the human eye).
As shown in fig. 5 to 7, the VT curves of the second and third regions A2 and A3 are both shifted to the right with respect to the VT curve of the first region A1, but shifted to different degrees. The design can obtain the comprehensive display effect of 3 VT curves of the first area A1, the second area A2 and the third area A3, further improve the slope of the VT curves and optimize the display effect of the dimming glass.
The embodiment of the present disclosure is schematically illustrated by taking 2 and 3 different voltage dividing effects as examples, and certainly, more than 3 voltage dividing effects can be designed, so as to continuously improve the slope of the VT curve of the light modulation glass, and design according to actual needs.
It should be noted that the partial pressure effect of each region provided by the embodiments of the present disclosure is obtained by adjusting the thickness or/and the dielectric constant of the partial pressure layer according to the actual brightness requirement.
The partial pressure layer 6 provided by the embodiment of the disclosure can be manufactured by adopting a photoetching process, and the patterning manufacturing of the partial pressure layer 6 can adopt a public plate photomask design, so that the partial pressure layer is suitable for products of dimming glass with diversified sizes, and has an advantage on cost reduction. In addition, the design scheme of the embodiment of the disclosure can realize that the dimming liquid crystal layers in different areas can obtain different voltage driving effects under the same external driving voltage, and the driving difficulty and the binding process difficulty are not increased.
In specific implementation, as shown in fig. 4, 6, and 7, because some regions are provided with the voltage dividing layers 6 and some regions are not provided with the voltage dividing layers 6, in order to ensure that the surface of each voltage dividing layer 6 away from the second substrate 2 is flush with the surface of the second electrode 5 away from the second substrate 2 corresponding to the region where no voltage dividing layer 6 is provided, in the above-mentioned light control glass provided in the embodiment of the present disclosure, as shown in fig. 4, 6, and 7, in addition to the second electrode 5 corresponding to the region where the distance from the first electrode 4 is greater, the remaining regions further include the step-up layers 7 located between the corresponding second electrode 5 and the second substrate 2, and the material of the step-up layers 7 is a transparent dielectric layer.
In practical implementation, in the above light control glass provided in the embodiments of the present disclosure, as shown in fig. 3 to 7, the material of the voltage division layer 6 is a transparent dielectric layer.
Specifically, the transparent dielectric layer may be made of one or more of SiNx, siOx, and a transparent photoresist protective layer (OC layer).
The light-adjusting glass provided by the embodiment of the disclosure, for example, as shown in fig. 4, utilizes the principle of capacitance voltage division, a transparent dielectric layer (voltage division layer 6) is designed between the first electrode 4 and the second electrode 5 at the second area A2, that is, a voltage division capacitor is introduced to be connected in series with the liquid crystal capacitor, so that the voltage actually loaded on the light-adjusting liquid crystal layer 3 is smaller than the external driving voltage V, and meanwhile, a transparent dielectric layer (heightening layer 7) with the same thickness is designed between the second electrode 5 at the first area A1 and the second substrate 2, so as to ensure that the thicknesses of the light-adjusting liquid crystal layer 3 at the first area A1 and the second area A2 are the same. The capacitance voltage dividing effect at the second area A2 is related to the thickness and the relative dielectric constant of the transparent dielectric layer (voltage dividing layer 6), and the voltage dividing effect of the transparent dielectric layer (voltage dividing layer 6) is increased by the increase of the thickness and the relative dielectric constant of the transparent dielectric layer (voltage dividing layer 6), so that the voltage actually loaded on the dimming liquid crystal layer 3 is reduced. The voltage dividing effect of the transparent dielectric layers (voltage dividing layers 6) with different thicknesses is shown in fig. 12, for example, the relative dielectric constant of the transparent dielectric layer (voltage dividing layer 6) is 4, the relative dielectric constant of the dimming liquid crystal layer 3 is 8.6, the thickness of the dimming liquid crystal layer 3 is 10 μm, the curve C1 is a VT curve when the transparent dielectric layer is not increased, the curve C2 is a VT curve when the transparent dielectric layer has a thickness of 1 μm, the curve C3 is a VT curve when the transparent dielectric layer has a thickness of 2 μm, the curve C4 is a VT curve when the transparent dielectric layer has a thickness of 3 μm, the curve C5 is a VT curve when the transparent dielectric layer has a thickness of 4 μm, and the curve C6 is a VT curve when the transparent dielectric layer has a thickness of 5 μm. Therefore, in practical implementation, in the light control glass provided in the embodiments of the present disclosure, as shown in fig. 3 to 7, the thickness of the voltage division layer 6 is 1 μm to 5 μm.
In practical implementation, in order to ensure that the human eye cannot distinguish the transmittance difference of each region, in the light control glass provided in the embodiment of the present disclosure, as shown in fig. 3 to 10, the width of each region (e.g., A1, A2, A3) along the second direction Y is less than 100 μm. The smaller the width of each area is, the more difficult the process for manufacturing the partial pressure layer 6 is; the width of each region is increased, and the human eyes can easily distinguish the transmittance difference. Preferably, the width of each region is 10 μm to 80 μm.
In specific implementation, in the light control glass provided by the embodiment of the present disclosure, the second electrodes corresponding to the respective regions are electrically connected through the connection portion, and an included angle between the connection portion and the second electrode is greater than or equal to 90 °. Specifically, as shown in fig. 4 and 7, the second electrode 5 corresponding to the first area A1 and the second electrode 5 corresponding to the second area A2 are electrically connected through a connection portion 8, and an included angle between the connection portion 8 and the second electrode 5 may be greater than or equal to 90 °; as shown in fig. 6, the second electrode 5 corresponding to the first area A1 is electrically connected to the second electrode 5 corresponding to the second area A2 through a connection portion 8, the second electrode 5 corresponding to the second area A2 is electrically connected to the second electrode 5 corresponding to the third area A3 through the connection portion 8, and an included angle between the connection portion 8 and the second electrode 5 may be greater than or equal to 90 °; fig. 4, 6 and 7 of the embodiment of the present disclosure are illustrated by taking an example that an included angle between the connection portion 8 and the second electrode 5 is equal to 90 °.
In specific implementation, in the above light control glass provided in the embodiment of the present disclosure, as shown in fig. 4 and 7, a side wall of the connection portion 8 away from the voltage dividing layer 6 is shaped as a flat surface or a curved surface, and a side wall of the connection portion 8 contacting the voltage dividing layer 6 is shaped as a flat surface or a curved surface; as shown in fig. 6, the shape of the side wall of the connection portion 8 between the first region A1 and the second region A2, which is away from the partial pressure layer 6, is a flat surface or a curved surface, the shape of the side wall of the connection portion 8, which is in contact with the partial pressure layer 6, is a flat surface or a curved surface, the shape of the side wall of the connection portion 8, which is away from the partial pressure layer 6, between the second region A2 and the third region A3 is a flat surface or a curved surface, and the shape of the side wall of the connection portion 8, which is in contact with the partial pressure layer 6, is a flat surface or a curved surface.
Fig. 3 to 7 illustrate a normally white mode, and in particular, the light control glass provided in the embodiments of the present disclosure may also be in a normally black mode, and the light control liquid crystal layer includes positive liquid crystal molecules and dichroic dye molecules. Under the action of an electric field, the dichroic dye molecules rotate along with the rotation of the positive liquid crystal molecules, so that the different transmittances of the light adjusting glass can be adjusted according to the different absorption effects of the dichroic dye molecules on polarized light.
Of course, in a specific implementation, the dimming liquid crystal layer in the dimming glass provided in the embodiment of the present disclosure may also include only liquid crystal molecules, and as shown in fig. 13, the dimming glass further includes: the first polarizer 9 is positioned on one side of the first substrate 1, which is far away from the dimming liquid crystal layer 3, and the second polarizer 10 is positioned on one side of the second substrate 2, which is far away from the dimming liquid crystal layer 3;
the transmission axis of the first polarizer 7 is perpendicular to the transmission axis of the second polarizer 8. That is, the embodiment of the present disclosure may also adopt a mode of adding a polarizer to adjust different actual voltages loaded on the dimming liquid crystal layers corresponding to different regions by the mode of adding a voltage division layer provided by the embodiment of the present disclosure, so as to realize adjustment of different transmittances of the dimming glass.
It should be noted that fig. 13 is illustrated by taking an example that the dimming glass is formed with two regions A1 and A2, and the voltage division layer 6 is not disposed in the first region A1, and the voltage division layer 6 is disposed in the second region A2, but it is needless to say that the dimming glass may be disposed in the same manner as the voltage division layer 6 in fig. 3 and fig. 5 to 7, and the dimming glass is different from the dimming liquid crystal layer 3 in fig. 3 and fig. 5 to 7 in that the dimming glass is disposed with the first polarizer 11 and the second polarizer 12.
In specific implementation, as shown in fig. 3 to 7 and 13, the light control glass provided in the embodiment of the present disclosure further includes: a first alignment layer 11 located between the first electrode 4 and the dimming liquid crystal layer 3, and a second alignment layer 12 located on the side of the dimming liquid crystal layer 3 facing the second electrode 5. The first alignment layer 11 and the second alignment layer 12 have the same functions as those of the alignment layer in the prior art, and are not described herein.
Based on the same inventive concept, the embodiment of the present disclosure further provides a glass assembly, which includes the light control glass in the above embodiments. Since the principle of the glass assembly for solving the problems is similar to that of the aforementioned light control glass, the implementation of the glass assembly can be referred to the implementation of the aforementioned light control glass, and repeated descriptions are omitted.
Other essential components of the glass assembly are understood by those skilled in the art, and are not described herein nor should they be construed as limiting the present disclosure.
The glass module can be applied to traffic facilities such as automobiles, trains, airplanes and the like. The method can also be applied to building smart windows.
According to the dimming glass and the glass assembly provided by the embodiment of the disclosure, the dimming glass is divided into at least two different regions, and under the condition that the same voltage is applied between the first electrode 4 and the second electrode 5, the light transmittances of the dimming liquid crystal layers 3 corresponding to the different regions are different, so that the brightness of the glass corresponding to the different regions is different, the brightness of the glass felt by human eyes is a comprehensive effect of the brightness corresponding to the different regions, and an effect of reducing the slope of the whole VT curve is achieved. The improvement is beneficial to the adjustment and control of the middle brightness of the dimming glass, the integral display effect of the dimming glass can be improved, and the application scene of the product is widened. And the design scheme has no influence on the dark state and bright state transmittance of the dimming glass.
It will be apparent to those skilled in the art that various changes and modifications can be made in the present disclosure without departing from the spirit and scope of the disclosure. Thus, if such modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include such modifications and variations as well.
Claims (23)
1. A light control glass, wherein the light control glass is formed with at least two different regions, the light control glass comprising:
a first substrate;
a second substrate disposed opposite to the first substrate;
a dimming liquid crystal layer between the first substrate and the second substrate;
a first electrode positioned on one side of the first substrate facing the dimming liquid crystal layer;
a second electrode positioned on one side of the second substrate facing the dimming liquid crystal layer; the second electrodes corresponding to the different regions are electrically connected; wherein,
when the same voltage is applied between the first electrode and the second electrode, the light transmittance of the light control liquid crystal layer is different for the regions of different types.
2. The light control glass as claimed in claim 1, further comprising a voltage dividing layer between the second electrode corresponding to at least one of the regions and the light control liquid crystal layer, wherein the voltage dividing layer is configured to make driving voltages of the light control liquid crystal layer different for different regions.
3. The light control glass of claim 1 or 2, wherein the thickness of each position in the light control liquid crystal layer is the same.
4. The light control glass as claimed in claim 1 or 2, wherein the number of each of the same regions is plural, and the different regions are alternately arranged.
5. The light control glass as claimed in claim 2, wherein the voltage dividing layers are not disposed in one of the regions, and a surface of each voltage dividing layer away from the second substrate is flush with a surface of the second electrode away from the second substrate corresponding to the region where the voltage dividing layer is not disposed.
6. The privacy glass of claim 2, wherein each of the regions is provided with the voltage division layer, and a surface of each of the voltage division layers facing away from the second substrate is flush.
7. The privacy glass of claim 5 or 6, wherein at least two different regions provide the voltage division layer, and the at least two different regions satisfy at least one of:
the dielectric constants of partial pressure layers corresponding to different regions are different;
the different regions have different thicknesses of the corresponding pressure-separation layers.
8. The light control glass as claimed in claim 7, wherein the light control glass is formed with a plurality of first regions and a plurality of second regions extending in a first direction and alternately arranged in a second direction, the first direction and the second direction being arranged to cross;
the second electrode that first region corresponds with between the liquid crystal layer of adjusting luminance and the second electrode that the second region corresponds with adjust luminance all have between the liquid crystal layer the partial pressure layer, first region corresponds the partial pressure layer with the second region corresponds the thickness of partial pressure layer is the same, first region corresponds the partial pressure layer with the second region corresponds the dielectric constant of partial pressure layer is different.
9. The light control glass as claimed in claim 5, wherein the light control glass is formed with a plurality of first regions and a plurality of second regions extending in a first direction and alternately arranged in a second direction, the first direction and the second direction being arranged to cross;
the first region is not provided with the voltage division layer, and the voltage division layer is arranged between the second electrode corresponding to the second region and the dimming liquid crystal layer.
10. The light control glass as claimed in claim 7, wherein the light control glass is formed with a plurality of first regions, a plurality of second regions and a plurality of third regions extending in a first direction and alternately arranged in a second direction, the first direction and the second direction being arranged to intersect;
the voltage division layers are arranged between the second electrode corresponding to the first area and the dimming liquid crystal layer, between the second electrode corresponding to the second area and the dimming liquid crystal layer and between the second electrode corresponding to the third area and the dimming liquid crystal layer;
the thicknesses of the pressure-dividing layer corresponding to the first region, the pressure-dividing layer corresponding to the second region, and the pressure-dividing layer corresponding to the third region are the same, and the dielectric constants of the pressure-dividing layer corresponding to the first region, the pressure-dividing layer corresponding to the second region, and the pressure-dividing layer corresponding to the third region are different from each other.
11. The light control glass as claimed in claim 7, wherein the light control glass is formed with a plurality of first regions, a plurality of second regions and a plurality of third regions extending in a first direction and alternately arranged in a second direction, the first direction and the second direction being arranged to intersect;
the first region is not provided with the voltage division layer, and the voltage division layer is arranged between the second electrode corresponding to the second region and the dimming liquid crystal layer and between the second electrode corresponding to the third region and the dimming liquid crystal layer;
the dielectric constant of the laminated layer corresponding to the second region is the same as that of the laminated layer corresponding to the third region, and the thickness of the laminated layer corresponding to the third region is greater than that of the laminated layer corresponding to the second region.
12. The light control glass as claimed in claim 7, wherein the light control glass is formed with a plurality of first regions, a plurality of second regions and a plurality of third regions extending in a first direction and alternately arranged in a second direction, the first direction and the second direction being arranged to cross;
the first region is not provided with the voltage division layer, and the voltage division layer is arranged between the second electrode corresponding to the second region and the dimming liquid crystal layer and between the second electrode corresponding to the third region and the dimming liquid crystal layer;
the thicknesses of the partial pressure layers corresponding to the second region and the third region are the same, and the dielectric constant of the partial pressure layer corresponding to the third region is different from that of the partial pressure layer corresponding to the second region.
13. The light control glass according to any one of claims 9, 11 and 12, wherein the regions other than the second electrode corresponding to the region having the larger distance from the first electrode further include a step-up layer located between the corresponding second electrode and the second substrate, and the step-up layer is made of a transparent dielectric layer.
14. The privacy glass of any one of claims 2-12, wherein the material of the voltage division layer is a transparent dielectric layer.
15. The privacy glass of any one of claims 2-12, wherein the thickness of the pressure-splitting layer is from 1 μ ι η to 5 μ ι η.
16. The privacy glass of any one of claims 8-12, wherein the width of each region along the second direction is less than 100 μ ι η.
17. The privacy glass of claim 16, wherein each of the regions has a width of 10 μ ι η to 80 μ ι η along the second direction.
18. The light control glass as claimed in any one of claims 9, 11 and 12, wherein the second electrodes corresponding to the regions are electrically connected through a connecting portion, and an included angle between the connecting portion and the second electrodes is greater than or equal to 90 °.
19. The light control glass of claim 18, wherein a side wall of the connection portion away from the voltage division layer is shaped as a flat surface or a curved surface, and a side wall of the connection portion in contact with the voltage division layer is shaped as a flat surface or a curved surface.
20. The privacy glass of any one of claims 1-19, wherein the privacy glass is in a normally white mode and the privacy liquid crystal layer comprises negative liquid crystal molecules and dichroic dye molecules.
21. The privacy glass of any one of claims 1-19, wherein the privacy glass is in a normally black mode and the privacy liquid crystal layer comprises positive liquid crystal molecules and dichroic dye molecules.
22. The privacy glass of any one of claims 1-19, wherein the privacy liquid crystal layer is liquid crystal molecules, the privacy glass further comprising: and the second polaroid is positioned on one side of the dimming liquid crystal layer and deviates from the first baseplate.
23. A glass assembly comprising the privacy glass of any one of claims 1-22.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110835490.7A CN115685603A (en) | 2021-07-23 | 2021-07-23 | Dimming glass and glass assembly |
| PCT/CN2022/103450 WO2023000965A1 (en) | 2021-07-23 | 2022-07-01 | Switchable glass and glass assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110835490.7A CN115685603A (en) | 2021-07-23 | 2021-07-23 | Dimming glass and glass assembly |
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| CN115685603A true CN115685603A (en) | 2023-02-03 |
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| CN202110835490.7A Pending CN115685603A (en) | 2021-07-23 | 2021-07-23 | Dimming glass and glass assembly |
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| WO (1) | WO2023000965A1 (en) |
Cited By (1)
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| WO2024217372A1 (en) * | 2023-04-21 | 2024-10-24 | 京东方科技集团股份有限公司 | Switchable glass, switchable glass system, and control method therefor |
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| JP2506328B2 (en) * | 1986-01-07 | 1996-06-12 | 富士通株式会社 | LCD display panel |
| KR960024595A (en) * | 1994-12-29 | 1996-07-20 | 윤종용 | Multi-gradation display device and method of ferroelectric liquid crystal display device |
| KR20000029277A (en) * | 1998-10-29 | 2000-05-25 | 모리시타 요이찌 | Liquid crystal device, its preparation and examination method |
| CN103728759A (en) * | 2013-11-28 | 2014-04-16 | 深圳市华星光电技术有限公司 | Color liquid crystal display panel |
| KR102269081B1 (en) * | 2015-01-22 | 2021-06-24 | 삼성디스플레이 주식회사 | Liquid crystal display |
| CN215833725U (en) * | 2021-07-23 | 2022-02-15 | 北京京东方传感技术有限公司 | Dimming glass and glass assembly |
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2021
- 2021-07-23 CN CN202110835490.7A patent/CN115685603A/en active Pending
-
2022
- 2022-07-01 WO PCT/CN2022/103450 patent/WO2023000965A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024217372A1 (en) * | 2023-04-21 | 2024-10-24 | 京东方科技集团股份有限公司 | Switchable glass, switchable glass system, and control method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023000965A1 (en) | 2023-01-26 |
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