CN114740649A - Locally-blocked-response composite spliced liquid crystal dimming film vehicle window - Google Patents
Locally-blocked-response composite spliced liquid crystal dimming film vehicle window Download PDFInfo
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- CN114740649A CN114740649A CN202210261538.2A CN202210261538A CN114740649A CN 114740649 A CN114740649 A CN 114740649A CN 202210261538 A CN202210261538 A CN 202210261538A CN 114740649 A CN114740649 A CN 114740649A
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- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 5
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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
- G02F1/13336—Combining plural substrates to produce large-area displays, e.g. tiled displays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
- B60J3/04—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in transparency
-
- 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
- G02F1/133305—Flexible substrates, e.g. plastics, organic film
-
- 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
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- 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
- G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Liquid Crystal (AREA)
Abstract
The invention relates to a composite spliced liquid crystal dimming film vehicle window with local block response, which comprises a window body and a dimming mechanism arranged on the window body in a liftable manner, and is characterized in that the dimming mechanism comprises: the glass is arranged on the window body; the liquid crystal dimming film is arranged in the glass and is made of a flexible material; the functional layer is arranged between the liquid crystal dimming film and the glass; the liquid crystal dimming film comprises a first dimming film and a second dimming film, and the first dimming film is spliced with the second dimming film; the functional layer comprises a light blocking area, an area formed by splicing the first dimming film and the second dimming film is a connection area, and the light blocking area corresponds to the connection area in position and size. When the dimming area of the liquid crystal dimming film is prevented from being darkened, the connection area of the liquid crystal dimming film penetrates through the strong light to influence the sight of a driver and cause potential safety hazards.
Description
Technical Field
The invention relates to the technical field of manufacturing of dimming car windows, in particular to a composite spliced liquid crystal dimming film car window with local blocking response.
Background
The important components of the whole automobile body of the window are designed for meeting the requirements of lighting, ventilation and driver and passenger visual fields in the automobile, the light transmittance of the window is constant, but in summer, due to strong sunlight, the window is dazzled by sunlight, and once the eyes are irradiated by the sunlight and are difficult to open, accidents easily occur to a driver in the automobile driving process. Also there is the present light modulation membrane through setting up liquid crystal in glass, through the luminousness that changes the light modulation membrane, plays the effect of similar shutter, and when light was strong, the light modulation membrane was dark, and when light was weak, the light modulation membrane became transparent. However, limited by the existing technology, the size of the dimming film in the production process has a requirement, i.e. in a large-size application scene, several pieces of liquid crystal dimming films need to be organically combined to meet the application requirement. Under the general condition, the peripheral epoxy of liquid crystal membrane of adjusting luminance can hide in the framework of door window, however, the unable door window that utilizes of epoxy between the liquid crystal membrane of adjusting luminance that two concatenations set up is hidden, and form obvious linking area on glass, this linking area does not have the function of adjusting luminance, when the vehicle meets with the highlight, adjust luminance regional sense highlight adjustment self luminousness, make the regional glass of adjusting luminance darken, and linking area does not have the function of adjusting luminance, and epoxy is transparent material, when the highlight passes through linking area, the linking area becomes very bright during, very bright linking area forms strong contrast with the regional area of adjusting luminance that darkens, if the angle of highlight just in time shines driver's eyes, just in time there is great potential safety hazard. Simultaneously, the user also has the demand of privacy with the liquid crystal membrane of adjusting luminance shading of door window, avoids the pedestrian outside the car to see the scene in the car, and the light transmissivity of connection area nevertheless makes the privacy unable satisfy the demand.
Therefore, it is necessary to provide a composite spliced liquid crystal light modulation film vehicle window which can change self light transmittance according to light intensity outside the vehicle window when a local block response is carried out, and completely avoid driving potential safety hazards caused by strong light transmission.
Disclosure of Invention
The invention aims to provide a composite spliced liquid crystal dimming film vehicle window which can change the light transmittance according to the light intensity outside the vehicle window when in local blocking response and completely avoid driving potential safety hazards caused by strong light transmission.
According to one aspect of the invention, a composite spliced liquid crystal light modulation film vehicle window with local blocking response is provided, the vehicle window comprises a window body and a light modulation mechanism arranged on the window body in a lifting manner, and the light modulation mechanism comprises:
the glass is arranged on the window body;
the liquid crystal dimming film is arranged in the glass and is made of a flexible material;
the functional layer is arranged between the liquid crystal dimming film and the glass;
the liquid crystal dimming film at least comprises a first dimming film and a second dimming film, and the first dimming film and the second dimming film are spliced side by side;
the functional layer comprises a light blocking area, an area formed by splicing the first dimming film and the second dimming film is a connection area, and the light blocking area corresponds to the connection area in position.
Preferably, the cross-sectional width of the light blocking region is T, and the cross-sectional width of the connecting region is D, and satisfy the relation:
T-D＞0。
preferably, the functional layer is a combination stack of one or more of a heat insulation film, a light filtering film and an anti-dazzle film.
More preferably, the functional layer is a filter film for filtering ultraviolet rays.
More preferably, the glass comprises:
the first glass is arranged on one side, close to the outside of the vehicle, of the window body;
the first glass is arranged on one side, away from the outside, of the window body; and is arranged opposite to the first glass;
the functional layer includes:
a first functional layer disposed between the first glass and the liquid crystal dimming film,
and the second functional layer is arranged between the second glass and the liquid crystal dimming film.
The light blocking region includes: a first light blocking region provided in the first functional layer and a second light blocking region provided in the second functional layer;
the functional layer further comprises a non-light blocking area, the first functional layer further comprises a first non-light blocking area connected with the first light blocking area, and the second functional layer further comprises a second non-light blocking area connected with the second light blocking area.
More preferably, the first light adjusting film includes:
the first conducting layer is arranged on one surface, away from the first glass, of the first functional layer;
the second conducting layer is arranged on one surface, close to the first glass, of the second functional layer;
a first liquid crystal layer including a first liquid crystal part disposed between the first conductive layer and the second conductive layer and a first epoxy resin disposed between the first conductive layer and the second conductive layer and surrounding the liquid crystal part, the first epoxy resin enclosing the liquid crystal part between the first conductive layer and the second conductive layer;
the second light adjusting film includes:
the third conducting layer is arranged on one surface, away from the first glass, of the first functional layer;
the fourth conducting layer is arranged on one surface, close to the first glass, of the second functional layer;
a second liquid crystal layer including a second liquid crystal portion disposed between the third conductive layer and the fourth conductive layer and a second epoxy resin disposed between the third conductive layer and the fourth conductive layer and surrounding the second liquid crystal portion, the second epoxy resin enclosing the second liquid crystal portion between the third conductive layer and the fourth conductive layer.
More preferably, the thicknesses R of the first, second, third and fourth conductive layers are the same, and the thickness H of the first and second epoxy resins is the same, satisfying the relation:
T≥(2RD+HD)/H。
more preferably, the first epoxy resin is connected to the second epoxy resin at the connection region.
More preferably, the first conductive layer, the second conductive layer, the third conductive layer and the fourth conductive layer are made of one or two of indium tin oxide or nano silver materials.
Preferably, the vehicle window further comprises a control module electrically connected with the liquid crystal dimming film and controlling the liquid crystal dimming film to change the light transmittance, a light sensor electrically connected with the control module and monitoring the light intensity outside the vehicle, and a power supply electrically connected with the control module.
The invention has the beneficial effects that:
through first membrane of adjusting luminance with the regional setting that the second membrane of adjusting luminance spliced mutually has the functional layer in light blocking area, when avoiding the area of adjusting luminance of liquid crystal membrane to become dark, the connection region of liquid crystal membrane of adjusting luminance sees through the highlight, influences driver's sight, causes the potential safety hazard. Meanwhile, when the privacy requirement of a user appears and the liquid crystal dimming film is adjusted to the darkest state, pedestrians outside the vehicle are prevented from peeping the scene inside the vehicle through the transparent connecting area, and therefore complete privacy is guaranteed.
By satisfying the relation: T-D is more than 0, and the cross section width of the light blocking area is limited to be larger than that of the connecting area so as to play a better light blocking role;
by satisfying the relation: t is more than or equal to (2RD + HD)/H, so that the light blocking area can completely block light from passing through the connecting area.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a vehicle window with glass and functional layers removed in accordance with the present invention;
FIG. 2 is a schematic structural diagram of a light-adjusting mechanism according to the present invention;
FIG. 3 is a schematic diagram of a control module according to the present invention;
100. a vehicle window; 10. a dimming mechanism; 11. glass; 111. a first glass; 112. a second glass; 12. a liquid crystal dimming film; 121. a first light adjusting film; 1211. a first conductive layer; 1212. a second conductive layer; 1213. a first liquid crystal section; 1214. a first epoxy resin; 122. a second light adjusting film; 1221. a third conductive layer; 1222. a fourth conductive layer; 1223. a second liquid crystal section; 1224. a second epoxy resin; 123. a connection region; 13. a functional layer; 131. a first functional layer; 132. a second functional layer; 133. a non-light-blocking region; 134. a first non-light-blocking region; 135. a second non-light-blocking region; 136. a light blocking area; 137. a first light blocking area; 138. a second light blocking area; 20. a window body; 30. a control module; 40. a power source; 50. a light sensor; 1215. a first liquid crystal layer; 1225. a second liquid crystal layer;
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The invention provides a composite spliced liquid crystal light modulation film vehicle window with local block response, which comprises a window body and a light modulation mechanism arranged on the window body in a lifting way,
the dimming mechanism includes:
the glass is arranged on the window body,
the liquid crystal dimming film is arranged in the glass and is made of a flexible material;
the functional layer is arranged between the liquid crystal dimming film and the glass;
the liquid crystal dimming film comprises a first dimming film and a second dimming film, and the first dimming film is spliced with the second dimming film;
the functional layer comprises a light blocking area, an area formed by splicing the first dimming film and the second dimming film is a connection area, and the light blocking area corresponds to the connection area in position.
In the structure, the functional layer with the light blocking area is arranged in the area where the first dimming film and the second dimming film are spliced, so that when the dimming area of the liquid crystal dimming film is prevented from being darkened, the connection area of the liquid crystal dimming film penetrates through strong light, the sight of a driver is influenced, and potential safety hazards are caused. Meanwhile, when the privacy requirement of a user appears and the liquid crystal dimming film is adjusted to the darkest state, pedestrians outside the vehicle are prevented from peeping the scene inside the vehicle through the transparent connecting area, and therefore complete privacy is guaranteed.
Referring to fig. 1-3, the present invention provides a partially segmented responsive composite spliced liquid crystal light modulating film 12 vehicle window 100, and referring to fig. 1 and 2, said vehicle window 100 comprises: the light adjusting mechanism 10, the window 20, the control module 30, the power supply 40 and the light sensor 50;
specifically, the window 20 is an automotive window 100 body as is conventional in the art.
Specifically, the dimming mechanism 10 is liftably provided on the window 20, and a lifting mechanism of the window 100, which is conventional in the art, may be employed.
The dimming mechanism 10 includes: glass 11, a conductive layer, a liquid crystal dimming film 12;
specifically, the glass 11 is disposed on the window 20.
Specifically, the glass 11 includes:
and the first glass 111 is arranged on one side, close to the outside of the vehicle, of the window 20.
The second glass 112, the first glass 111 is arranged on one side of the window 20, which faces away from the outside of the vehicle; and is disposed opposite to the first glass 111.
Specifically, the liquid crystal dimming film 12 is disposed in the glass 11, and the liquid crystal dimming film 12 is made of a flexible material.
Specifically, the functional layer 13 is disposed between the liquid crystal dimming film 12 and the glass 11. The functional layer 13 is a combination and superposition of one or more of a heat insulation film, a light filtering film and an anti-glare film, so as to achieve the functions of heat insulation, sun protection, ultraviolet protection, anti-glare, color adjustment and the like.
Specifically, the liquid crystal dimming film comprises a plurality of dimming films spliced side by side, and side by side means on a plane unfolded along the dimming films, and the side by side can be transverse and side by side on the plane, and can also be longitudinal and side by side on the plane, which is mainly different from the condition that the plurality of dimming films are overlapped along the direction perpendicular to the plane.
In this embodiment, the number of the liquid crystal dimming films 12 is 2, and the liquid crystal dimming films 12 specifically include a first dimming film 121 and a second dimming film 122, and the first dimming film 121 is spliced with the second dimming film 122.
Further, the functional layer 13 includes a light blocking region 136, and the functional layer 13 having the light blocking region 136 is disposed in a region where the first dimming film 121 and the second dimming film 122 are joined together, so that when the dimming region of the liquid crystal dimming film 12 is dark, the connection region 123 of the liquid crystal dimming film 12 transmits strong light to affect the view of a driver, thereby causing a safety hazard. Meanwhile, when a user has privacy requirements and adjusts the liquid crystal dimming film 12 to the darkest state, pedestrians outside the vehicle are prevented from peeping the scene inside the vehicle through the transparent connecting area 123, and therefore complete privacy is guaranteed.
Specifically, in order to avoid light from passing through the transparent connecting region 123, the region where the first dimming film 121 and the second dimming film 122 are joined together is the connecting region 123, and the light blocking region 136 corresponds to the position of the connecting region 123, so as to achieve a better light blocking effect.
Specifically, let the cross-sectional width of the light blocking region 136 be T, and the cross-sectional width of the connection region 123 be D, satisfy the relation:
T-D＞0。
equivalently, the cross-sectional width of the light blocking region 136 is defined to be larger than the cross-sectional width of the connection region 123 to perform a better light blocking function.
Specifically, the functional layer 13 includes:
a first functional layer 131, wherein the first functional layer 131 is disposed between the first glass 111 and the liquid crystal dimming film 12,
a second functional layer 132, wherein the second functional layer 132 is disposed between the second glass 112 and the liquid crystal dimming film 12,
specifically, the light blocking region 136 includes a first light blocking region 137 disposed in the first functional layer 131 and a second light blocking region 138 disposed in the second functional layer 132; the first functional layer 131 is arranged on one surface, close to the first glass 111, of the liquid crystal dimming film 12, the second functional layer 132 is arranged on one surface, away from the first glass 111, of the liquid crystal dimming film 12, and therefore, the two light blocking regions 136 are used for double protection, and strong light is prevented from entering a vehicle through the connecting region 123. Meanwhile, when a user has privacy requirements and adjusts the liquid crystal dimming film 12 to the darkest, the double-arranged light blocking area 136 fully ensures complete privacy in the vehicle, and pedestrians outside the vehicle can be prevented from seeing the scene in the vehicle through the light-transmitting connecting area 123.
Further, the functional layer 13 further includes a non-light-blocking region 133, the first functional layer 131 further includes a first non-light-blocking region 134, and the second functional layer 132 further includes a second non-light-blocking region 135. By arranging the functional layer 13 having the non-light-blocking region 133 between the liquid crystal dimming film 12 and the glass 11, when external light acts on the vehicle window 100, the light can uniformly pass through the liquid crystal dimming film 12. Because the light source outside the car is complicated, some angle is penetrated the highlight, some angle is penetrated the low light, and the light modulation of liquid crystal membrane 12 is regional wholeness and is adjusted luminance, monoblock liquid crystal membrane 12 of adjusting luminance, perhaps a plurality of big regional adjustments in this liquid crystal membrane 12 are to same luminousness, through the light guide effect of functional layer 13, make the different light of external strength can more evenly see through liquid crystal membrane 12 of adjusting luminance for the light that gets into the car is more even soft, makes user experience more comfortable. Meanwhile, when the light blocking area 136 on the functional layer 13 is out of service due to external factors, strong light entering the vehicle through the connecting area 123 can act on the liquid crystal dimming film 12 more uniformly under the action of the non-light blocking area 133 of the functional layer 13, so that the problem that the local light intensity is too high to stimulate the eyes of a driver is avoided, and the potential safety hazard of driving is reduced.
Further, the first dimming film 121 includes: a first conductive layer 1211, a second conductive layer 1212, and a first liquid crystal layer 1215.
Specifically, the first conductive layer 1211 is disposed on a side of the first functional layer 131 facing away from the first glass 111;
specifically, the second conductive layer 1212 is disposed on a side of the second functional layer 132 close to the first glass 111;
specifically, the liquid crystal layer includes a first liquid crystal portion 1213 disposed between the first conductive layer 1211 and the second conductive layer 1212, and a first epoxy resin 1214 disposed between the first conductive layer 1211 and the second conductive layer 1212 and surrounding the liquid crystal portion, wherein the first epoxy resin 1214 encloses the liquid crystal portion between the first conductive layer 1211 and the second conductive layer 1212. By using one of the first conductive layer 1211 and the second conductive layer 1212 as a driving electrode and the other as a receiving electrode, a stable electric field can be formed between the two after a voltage is applied, so as to change the alignment direction of the liquid crystal molecules in the first liquid crystal layer 1215, thereby changing the light transmittance thereof.
Specifically, the first liquid crystal layer 1215 may employ a TN liquid crystal material or a liquid crystal material of dichroic dye. In this embodiment, the first liquid crystal layer 1215 is made of a liquid crystal material of dichroic dye, and the dichroic dye has a characteristic that its absorption rates for polarized light in the vertical and parallel molecular axis directions are different, and only polarized light in a certain direction is absorbed, and polarized light in the vertical direction is transmitted. When no voltage is applied across the first conductive layer 1211 and the second conductive layer 1212, the dichroic dye and the liquid crystal molecules of the liquid crystal material are perpendicular to the first glass 111 and the second glass 112, the direction of light absorbed by the natural light and the dye is perpendicular, and light can freely pass through without being absorbed, so that light can freely pass through the vehicle window 100. When a user needs to dim the vehicle window 100 for privacy or the vehicle window 100 detects that the outside has strong light and needs to dim the vehicle window 100, the dichroic dye is parallel to the directions of the first glass 111 and the second glass 112 by applying voltage to the two ends of the first conducting layer 1211 and the second conducting layer 1212, and at the moment, when light outside the vehicle irradiates, most of the light is absorbed by the dichroic dye, so that the vehicle window is in a dark state, and the purposes of weakening, blocking the strong light or ensuring the privacy inside the vehicle are achieved.
Further, the second light adjusting film 12 includes: a third conductive layer 1221, a fourth conductive layer 1222, and a second liquid crystal layer 1225.
Specifically, the third conductive layer 1221 is disposed on a side of the first functional layer 131 away from the first glass 111;
specifically, the fourth conductive layer 1222 is disposed on a side of the second functional layer 132 close to the first glass 111;
specifically, the liquid crystal layer includes a second liquid crystal section 1223 provided between the third conductive layer 1221 and the fourth conductive layer 1222 and a second epoxy resin 1224 provided between the third conductive layer 1221 and the fourth conductive layer 1222 and surrounding the second liquid crystal section 1223, the second epoxy resin 1224 sealing the second liquid crystal section 1223 between the third conductive layer 1221 and the fourth conductive layer 1222. Specifically, the second liquid crystal layer 1225 may employ a TN liquid crystal material or a liquid crystal material of a dichroic dye. In this embodiment, the second liquid crystal layer 1225 is made of a liquid crystal material of a dichroic dye, and the dichroic dye has a characteristic that its absorption rates for polarized light in the vertical and parallel molecular axis directions are different, and only polarized light in a certain direction is absorbed, and polarized light in the vertical direction is transmitted. When no voltage is applied across the first conductive layer 1211 and the second conductive layer 1212, the dichroic dye and the liquid crystal molecules of the liquid crystal material are perpendicular to the first glass 111 and the second glass 112, the direction of light absorbed by the natural light and the dye is perpendicular, and light can freely pass through without being absorbed, so that light can freely pass through the vehicle window 100. By using one of the third conductive layer 1221 and the fourth conductive layer 1222 as a driving electrode and the other as a receiving electrode, a stable electric field can be formed between the two after a voltage is applied, so as to change the alignment direction of the liquid crystal molecules in the first liquid crystal layer 1215, and thus change the light transmittance thereof. When a user needs to dim the vehicle window 100 for privacy requirements, or the vehicle window 100 detects that the outside has strong light and needs to dim the vehicle window 100, voltages are applied to two ends of the third conducting layer 1221 and the fourth conducting layer 1222, so that the dichroic dye is parallel to the directions of the first glass 111 and the second glass 112, and at the moment, when light rays outside the vehicle are irradiated, most of the light rays are absorbed by the dichroic dye, so that the vehicle window is in a dark state, and the purposes of weakening, blocking the strong light or ensuring the privacy in the vehicle are achieved.
Further, the first conductive layer 1211, the second conductive layer 1212, the third conductive layer 1221, and the fourth conductive layer 1222 are made of one or a combination of indium tin oxide and nano silver. By adopting one of the indium tin oxide and the nano silver material, the liquid crystal is a fluid, and the indium tin oxide and the nano silver can be prepared into an extremely thin conductive layer, so that the liquid crystal dimming film 12 has flexible material characteristics and can be more flexibly applied to various scenes.
Further, the thicknesses R of the first conductive layer 1211, the second conductive layer 1212, the third conductive layer 1221, and the fourth conductive layer 1222 are the same, and the thickness H of the first epoxy resin 1214 and the second epoxy resin 1224 are the same, and satisfy the relationship:
T≥(2RD+HD)/H。
equivalently, the light blocking region 136 is enabled to completely block light from passing through the connecting region 123. Referring to fig. 2, in order to facilitate understanding of those skilled in the art, two auxiliary lines L1 are introduced in fig. 2 as diagonal lines of the connecting region 123, and it is easy to understand that since the light blocking region 136 is opaque, when the light blocking region 136 needs to perform the light blocking function, both the first liquid crystal portion 1213 and the second liquid crystal portion 1223 connected to the connecting region 123 are not projected, and only the connecting region 123 is transparent, so that when the light blocking region 136 intersects with the auxiliary line L1, the light blocking region 136 just completely blocks light passing through the connecting region 123.
Specifically, referring to fig. 2, when there is an intersection between the light-blocking region 136 and the auxiliary line L1, as can be seen from the triangle projection theorem, the relation is satisfied:
T/D＝(R+0.5H)/H；
the formula is modified to obtain:
T＝(2RD+HD)/H。
in this embodiment, in order to ensure that light can be completely blocked in the light blocking area 136 through the connection area 123, T ≧ 2RD + HD)/H is made, thereby when avoiding the dimming area of the liquid crystal dimming film 12 to darken, the connection area 123 of the liquid crystal dimming film 12 sees through the highlight, influences driver's sight, causes the potential safety hazard. Meanwhile, when a user has privacy requirements and adjusts the liquid crystal dimming film 12 to the darkest state, pedestrians outside the vehicle are prevented from peeping the scene inside the vehicle through the transparent connecting area 123, and therefore complete privacy is guaranteed.
Further, in the connection region 123, the first epoxy resin 1214 is connected to the second epoxy resin 1224, and the first liquid crystal adjustment film and the second liquid crystal adjustment film are joined by connecting the first epoxy resin 1214 to the second epoxy resin 1224, so that the two liquid crystal adjustment films are applied to a window 100 having a large area. By setting the size of the light blocking region 136 of the functional layer 13 to correspond to the connection region 123, that is, the size of the light blocking region 136 corresponds to the size of the connection portion between the first epoxy resin 1214 and the second epoxy resin 1224, the light blocking region 136 on the functional layer 13 is made as small as possible while preventing light outside the vehicle from entering the vehicle through the connection region 123, so that the window 100 is more beautiful.
Further, the functional layer 13 is a light guide film. By adopting the light guide film as the functional layer 13, the liquid crystal dimming film 12 made of a flexible material can be more flexibly applied to various application scenes together with the functional layer 13. The light blocking region 136 is a light blocking material disposed on the functional layer 13. The light blocking region 136 is provided on the functional layer 13 by printing, plating a pigment having a light blocking property on the functional layer 13, or by inlaying a material having a light blocking property on the functional layer 13.
Further, referring to fig. 1 and 3, the vehicle window 100 further includes a control module 30 electrically connected to the liquid crystal dimming film 12 and controlling the liquid crystal dimming film 12 to change the light transmittance, a light sensor electrically connected to the control module 30 and monitoring the light intensity outside the vehicle, and a power source 40 electrically connected to the control module 30. The light intensity outside the vehicle is detected through the light sensor, and when the strong light irradiation is monitored, the control module 30 controls the liquid crystal dimming film 12 to adjust the light transmittance of the liquid crystal dimming film, so that the purpose of changing the light transmittance of the vehicle window 100 is achieved.
Therefore, by arranging the functional layer 13 with the light blocking area 136 in the area where the first dimming film 121 and the second dimming film 122 are spliced, it is avoided that when the dimming area of the liquid crystal dimming film 12 becomes dark, the connection area 123 of the liquid crystal dimming film 12 transmits strong light to affect the sight of a driver, which causes a safety hazard. Meanwhile, when a user has privacy requirements and adjusts the liquid crystal dimming film 12 to the darkest state, pedestrians outside the vehicle are prevented from peeping the scene inside the vehicle through the transparent connecting area 123, and therefore complete privacy is guaranteed.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a compound concatenation liquid crystal membrane window of adjusting luminance of local blocking response, the window includes that the window body sets up on the window body with liftable the mechanism of adjusting luminance which characterized in that, the mechanism of adjusting luminance includes:
the glass is arranged on the window body;
the liquid crystal dimming film is arranged in the glass and is made of a flexible material;
the functional layer is arranged between the liquid crystal dimming film and the glass;
the liquid crystal dimming film at least comprises a first dimming film and a second dimming film, and the first dimming film and the second dimming film are spliced side by side;
the functional layer comprises a light blocking area, an area formed by splicing the first dimming film and the second dimming film is a connection area, and the light blocking area corresponds to the connection area in position.
2. The locally-segmented-response composite spliced liquid crystal dimming film vehicle window as claimed in claim 1, wherein the cross-sectional width of the light blocking region is T, the cross-sectional width of the connecting region is D, and the relation is satisfied:
T-D＞0。
3. the locally-segmented-response composite spliced liquid crystal dimming film vehicle window as claimed in claim 1, wherein the functional layer is a combination stack of one or more of a heat insulation film, a light filter film and an anti-glare film.
4. The locally-tiled, responsive, composite, tiled, liquid crystal, light-modulating film vehicle window of claim 1, wherein the functional layer is a filter that filters ultraviolet light.
5. The locally-tiled, responsive, composite, tiled, liquid crystal, light-modulating film vehicle window of claim 1,
the glass comprises:
the first glass is arranged on one side, close to the outside of the vehicle, of the window body;
the first glass is arranged on one side, away from the outside, of the window body; and is arranged opposite to the first glass;
the functional layer includes:
a first functional layer disposed between the first glass and the liquid crystal dimming film,
the second functional layer is arranged between the second glass and the liquid crystal dimming film;
the light blocking region includes: a first light blocking region provided in the first functional layer and a second light blocking region provided in the second functional layer;
the functional layer further comprises a non-light blocking area, the first functional layer further comprises a first non-light blocking area connected with the first light blocking area, and the second functional layer further comprises a second non-light blocking area connected with the second light blocking area.
6. The locally-tiled, responsive, composite, tiled, liquid crystal, light-modulating film vehicle window of claim 5,
the first light adjusting film includes:
the first conducting layer is arranged on one surface, away from the first glass, of the first functional layer;
the second conducting layer is arranged on one surface, close to the first glass, of the second functional layer;
a first liquid crystal layer including a first liquid crystal part disposed between the first conductive layer and the second conductive layer and a first epoxy resin disposed between the first conductive layer and the second conductive layer and surrounding the liquid crystal part, the first epoxy resin enclosing the liquid crystal part between the first conductive layer and the second conductive layer;
the second light adjusting film includes:
the third conducting layer is arranged on one surface, away from the first glass, of the first functional layer;
the fourth conducting layer is arranged on one surface, close to the first glass, of the second functional layer;
a second liquid crystal layer including a second liquid crystal portion disposed between the third conductive layer and the fourth conductive layer and a second epoxy resin disposed between the third conductive layer and the fourth conductive layer and surrounding the second liquid crystal portion, the second epoxy resin enclosing the second liquid crystal portion between the third conductive layer and the fourth conductive layer.
7. The locally-tiled, responsive, composite, tiled, liquid crystal, light modulating film vehicle window of claim 6, wherein the thicknesses R of the first, second, third, and fourth conductive layers are the same, and the thickness H of the first and second epoxy resins is the same, satisfying the relationship:
T≥(2RD+HD)/H。
8. the partially segmented responsive composite tiled, liquid crystal, light film window of claim 6, wherein the first epoxy is bonded to the second epoxy at the bonding region.
9. The locally tiled, composite, spliced, liquid crystal, light modulating film vehicle window of claim 6, wherein the first, second, third, and fourth conductive layers are one or a combination of indium tin oxide or nano-silver materials.
10. The locally-blocked responsive composite spliced liquid crystal dimming film vehicle window according to claim 1, further comprising a control module electrically connected with the liquid crystal dimming film and controlling the liquid crystal dimming film to change light transmittance, a light sensor electrically connected with the control module and monitoring light intensity outside the vehicle, and a power supply electrically connected with the control module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210261538.2A CN114740649A (en) | 2022-03-16 | 2022-03-16 | Locally-blocked-response composite spliced liquid crystal dimming film vehicle window |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210261538.2A CN114740649A (en) | 2022-03-16 | 2022-03-16 | Locally-blocked-response composite spliced liquid crystal dimming film vehicle window |
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| CN114740649A true CN114740649A (en) | 2022-07-12 |
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Application publication date: 20220712 |