CN112339357A - Composite film layer, window comprising same, display system and automobile - Google Patents

Composite film layer, window comprising same, display system and automobile Download PDF

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Publication number
CN112339357A
CN112339357A CN202011327553.XA CN202011327553A CN112339357A CN 112339357 A CN112339357 A CN 112339357A CN 202011327553 A CN202011327553 A CN 202011327553A CN 112339357 A CN112339357 A CN 112339357A
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layer
composite
sub
layers
composite layer
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Granted
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CN202011327553.XA
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CN112339357B (en
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顾跃凤
王建栋
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Shanghai AVIC Optoelectronics Co Ltd
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Shanghai AVIC Optoelectronics Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/023—Optical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D43/00—Arrangements or adaptations of instruments
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0179—Display position adjusting means not related to the information to be displayed
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/12—Polarisers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/418—Refractive
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0179—Display position adjusting means not related to the information to be displayed
    • G02B2027/0183—Adaptation to parameters characterising the motion of the vehicle

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Ceramic Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

The application discloses compound rete and contain its window, display system and car relates to and shows technical field, includes: the first composite layer and the second composite layer are arranged in sequence; the first composite layer comprises a plurality of first sub-layers, namely a first refraction layer and a first sub-layer, which are sequentially arranged, the refraction index of the first sub-layer is smaller than that of the first refraction layer, the refraction index of each first sub-layer is gradually reduced along the direction that the first composite layer points to the second composite layer, and the first refraction layer is positioned on one side of the first sub-layer, which is far away from the second composite layer; the second composite layer comprises a plurality of second sub-layers and a second refraction layer, the second sub-layers are sequentially arranged, the refractive index of the second sub-layers is smaller than that of the second refraction layer, the refractive index of each second sub-layer is gradually increased along the direction of the first composite layer pointing to the second composite layer, and the second refraction layer is located on one side, away from the first composite layer, of the second sub-layers. The application enables the driver to obtain the information reflected by the composite film layer well, and the visual experience effect of the driver is improved.

Description

Composite film layer, window comprising same, display system and automobile
Technical Field
The application relates to the technical field of display, in particular to a composite film layer, a window comprising the composite film layer, a display system and an automobile.
Background
Head-Up Display (Head Up Display), HUD for short, be applied to a comprehensive electronic Display device on car or the aircraft, can with navigation information, information such as flight parameter with the figure, the form of character, project on the windshield directly ahead of driver's seat through optical component, highly approximately become the level with driver's eyes, when the driver sees through HUD to the front, can be easy fuse together with the data that HUD shows with external scene, make the driver keep the posture of raising the Head all the time, reduce between raising the Head and the low Head and ignore the quick change of external environment and the delay and the discomfort that glasses focus need constantly adjust the production.
Because the light intensity change of external environment can influence the driver and watch the information in the dead ahead for the driver wears the lens when necessary, and when the driver wore the lens, the information that HUD showed is projected on the dead ahead windshield of driving position, and windshield reflects information to driver's eyes, and the lens can influence the driver and receive the information that reflects, has greatly influenced driver's visual experience effect.
Disclosure of Invention
In view of this, the application provides a composite film layer, and a window, a display system and an automobile including the same, so that a driver can well acquire information reflected by the composite film layer, and the visual experience effect of the driver is improved.
In order to solve the technical problem, the following technical scheme is adopted:
in a first aspect, the present application provides a composite film layer comprising: the first composite layer and the second composite layer are arranged in sequence;
the first composite layer comprises a plurality of first sub-layers, namely a first refraction layer and a first sub-layer, which are sequentially arranged, the refraction index of the first sub-layer is smaller than that of the first refraction layer, the refraction index of each first sub-layer is gradually reduced along the direction that the first composite layer points to the second composite layer, and the first refraction layer is positioned on one side of the first sub-layer, which is far away from the second composite layer;
the second composite layer comprises a plurality of second sub-layers and a second refraction layer, the second sub-layers are sequentially arranged, the refractive index of the second sub-layers is smaller than that of the second refraction layer, the refractive index of each second sub-layer is gradually increased along the direction of the first composite layer pointing to the second composite layer, and the second refraction layer is located on one side, away from the first composite layer, of the second sub-layers.
In a second aspect, the present application further provides a window comprising a composite film layer, the composite film layer provided herein.
In a third aspect, the present application further provides a display system, including a composite film layer and a display device, where the composite film layer is the composite film layer provided in the present application.
In a fourth aspect, the present application further provides an automobile, including a main driving seat, an instrument desk and a display system, wherein the display system is provided by the present application, the display system includes a composite film layer and a display device, the instrument desk is located between the main driving seats of the composite film layer, and the display device is located in the instrument desk.
Compared with the prior art, the composite film layer, the window containing the composite film layer, the display system and the automobile at least realize the following beneficial effects:
the composite film layer, the window comprising the composite film layer, the display system and the automobile are provided, the refractive indexes of all sub-film layers in the first composite layer and the second composite layer are limited by arranging the first composite layer and the second composite layer, and the trend that the refractive indexes of all first sub-layers to the refractive indexes of all second sub-layers are gradually decreased and then gradually increased from the whole is realized along the direction that the first composite layer points to the second composite layer; on the other hand, when the driver wears the lens-shade, the proportion of P polarized light that sees through the lens-shade improves, makes the light that sees through the lens-shade more, and luminance is stronger for the driver can be good obtain by the information of compound rete reflection, improves driver's visual experience effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a composite film provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a composite film layer provided in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a composite film layer provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of a composite film layer provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a composite film layer provided in an embodiment of the present application;
fig. 6 is a schematic structural diagram of a composite film layer provided in an embodiment of the present application;
FIG. 7 is a schematic view of another structure of a composite film layer provided in the embodiments of the present disclosure;
FIG. 8 is a schematic view of another structure of a composite film layer provided in the embodiments of the present disclosure;
fig. 9 is a schematic view illustrating another structure of a composite film layer provided in an embodiment of the present application;
FIG. 10 is a schematic diagram of simulation provided by an embodiment of the present application;
FIG. 11 is another schematic diagram of simulation provided by an embodiment of the present application;
FIG. 12 is a schematic diagram of simulation provided by an embodiment of the present application;
FIG. 13 is another schematic diagram of simulation provided by an embodiment of the present application;
fig. 14 is a schematic structural diagram of a window provided in the embodiment of the present application;
fig. 15 is a schematic structural diagram of a display system according to an embodiment of the present application;
fig. 16 is a schematic structural diagram of an automobile according to an embodiment of the present application.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result. Furthermore, the term "coupled" is intended to encompass any direct or indirect electrical coupling. Thus, if a first device couples to a second device, that connection may be through a direct electrical coupling or through an indirect electrical coupling via other devices and couplings. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims. The same parts between the embodiments are not described in detail.
In the prior art, on one hand, when the HUD system is provided, because the reflectivity of the windshield is low, a light emitting part of a backlight module in the display device, which provides a light source, needs ultra-high brightness, generally, the brightness is 200 kilo candelas per square meter, so that a good display effect can be achieved, and meanwhile, the HUD power consumption is too large, the heat is serious, and the service life of the HUD is reduced; on the other hand, when the driver wears the goggles to avoid the influence of the external light intensity, the information displayed by the HUD system is projected onto the windshield right in front of the driver, and the windshield reflects the projected information to the eyes of the driver, wherein the reflected light includes S-polarized light and P-polarized light, it should be noted that the polarization vector of the S-polarized light is perpendicular to the incident plane, the polarization vector of the P-polarized light is parallel to the incident plane, the plane formed by the normal of the incident interface and the incident light is the incident plane, in general, the reflection of the P-polarized light is always lower than that of the S-polarized light, the reflection of the P-polarized light has a minimum value of 0 near the brewster angle, and at this time, only the component of the S-polarized light is basically left, the S-polarized light accounts for a relatively large amount, the P-polarized light accounts for a relatively small amount, when the driver views the windshield by wearing the goggles, the lens-shades plays the effect of blockking to S polarized light, can lead to the fact the information on the windshield that watches is darker to the P polarized light that can pass through, consequently, need improve the proportion of P polarized light in the reverberation, when making the driver wear the lens-shades, P polarized light is more in the received reflected light, and the information that watches is brighter, improves driver' S visual experience effect.
In view of this, the application provides a composite film layer, and a window, a display system and an automobile including the same, so that a driver can well acquire information reflected by the composite film layer, and the visual experience effect of the driver is improved.
The following detailed description is to be read in connection with the drawings and the detailed description.
Fig. 1 is a schematic structural diagram of a composite film 100 provided in an embodiment of the present application, please refer to fig. 1, in which the present application provides a composite film 100, including: a first composite layer 10 and a second composite layer 20 disposed in this order;
the first composite layer 10 comprises a plurality of first refraction layers 11 and first sub-layers 12 which are sequentially arranged, the refractive index of each first sub-layer 12 is smaller than that of the first refraction layer 11, the refractive index of each first sub-layer 12 is gradually reduced along the direction that the first composite layer 10 points to the second composite layer 20, and the first refraction layer 11 is positioned on one side, far away from the second composite layer 20, of each first sub-layer 12;
the second composite layer 20 includes a plurality of second sub-layers 21 and a second refraction layer 22 sequentially disposed, a refractive index of the second sub-layers 21 is smaller than a refractive index of the second refraction layer 22, the refractive index of each second sub-layer 21 increases progressively along a direction in which the first composite layer 10 points to the second composite layer 20, and the second refraction layer 22 is located on a side of the second sub-layer 21 away from the first composite layer 10.
It should be noted that fig. 1 only schematically shows a position of each film layer in the first composite layer 10 and the second composite layer 20, and does not represent the actual thickness of each film layer.
Specifically, with continued reference to fig. 1, the composite film 100 in this embodiment includes a first composite layer 10 and a second composite layer 20 sequentially stacked, and along a direction D1 that the first composite layer 10 points to the second composite layer 20, the first composite layer 10 includes a first refractive layer 11 and a plurality of first sub-layers 12 sequentially disposed, wherein a refractive index of each first sub-layer 12 is smaller than a refractive index of the first refractive layer 11, the refractive indices of the first sub-layers 12 are different, the refractive indices of the first sub-layers 12 decrease progressively, and the first refractive layer 11 is located on a side of the first sub-layer 12 away from the second composite layer 20; along the direction that the first composite layer 10 points to the second composite layer 20, the second composite layer 20 includes a plurality of second sub-layers 21 and a second refraction layer 22, wherein the refractive index of each second sub-layer 21 is smaller than the refractive index of the second refraction layer 22, the refractive indexes of each second sub-layer 21 are different, the refractive index of each second sub-layer 21 increases progressively, the second refraction layer 22 is located on one side of the second sub-layer 21 away from the first composite layer 10, the arrangement is such that when light enters the composite layer, the light is reflected out after passing through the second composite layer and the first composite layer, wherein the proportion of P polarized light in the reflected light is increased, and the P polarized light is not blocked by the anti-dazzling screen, therefore, when a driver wears the anti-dazzling screen, the proportion of P polarized light passing through the anti-dazzling screen is increased, so that more light passes through the anti-dazzling screen, the brightness is stronger, so that the driver can well obtain information reflected by the composite, certainly, under the condition that the reflectivity of the whole composite film layer 100 is not changed, the visual experience effect of a driver is improved.
In addition, it should be noted that, generally, the reflectivity of the conventional windshield is low, and the light emitting component providing the light source in the backlight module in the display device needs to have ultrahigh brightness, which results in too large power consumption, but in this embodiment, the overall reflectivity can be increased and the brightness of the backlight can be reduced by adjusting the thicknesses of the first sub-layer 12 in the first composite layer 10 and the second sub-layer 21 in the second composite layer 20, so as to further achieve the purpose of reducing the power consumption.
Optionally, as shown in fig. 1, the number of the first sub-layers 12 is m, and the number of the second sub-layers 21 is n, where m + n ranges from 4 to 20.
Specifically, please continue to refer to fig. 1, the number of the first sub-layers 12 is m, the number of the second sub-layers 21 is n, and the sum of m and n is 4-20, that is, it is always ensured that the direction pointing to the second composite layer 20 along the first composite layer 10 is the direction, and the refractive index from the first sub-layer 12 to the second sub-layer 21 is a rule that the refractive index is first decreased and then increased, for example, the number of the first sub-layers 12 is 6 and the number of the second sub-layers 21 is 4, optionally, the numbers of the first sub-layers 12 and the second sub-layers 21 may also be equal, as long as the rule that the refractive index from the first sub-layer 12 to the second sub-layers 21 is first decreased and then increased is satisfied, the proportion of P polarized light in the light reflected by the composite film 100 can also be improved, and the user experience of the driver viewing the composite film 100 is improved.
Optionally, fig. 2 is another schematic structural diagram of the composite film 100 provided in the embodiment of the present application, fig. 3 is another schematic structural diagram of the composite film 100 provided in the embodiment of the present application, and fig. 4 is another schematic structural diagram of the composite film 100 provided in the embodiment of the present application, please refer to fig. 2 to 4, which further include: a first substrate 30, a second substrate 40 and a glue layer 50, the glue layer 50 being located between the first substrate 30 and the second substrate 40;
the first composite layer 10 and the second composite layer 20 are respectively located at two sides of the adhesive layer 50, and the first composite layer 10, the adhesive layer 50 and the second composite layer 20 are sequentially stacked, for example, refer to fig. 2;
alternatively, the first composite layer 10 and the second composite layer 20 are respectively located on two sides of the second substrate 40, and the first composite layer 10, the second substrate 40 and the second composite layer 20 are sequentially stacked and arranged, for example, refer to fig. 3;
alternatively, the first composite layer 10 and the second composite layer 20 are respectively located on two sides of the first substrate 30, and the first composite layer 10, the first substrate 30 and the second composite layer 20 are sequentially stacked, for example, refer to fig. 4.
It should be noted that the embodiments shown in fig. 2 to fig. 4 only schematically illustrate the positional relationship between the film layers in the composite film 100, and do not represent the actual thicknesses of the film layers.
Specifically, as shown in fig. 2 to fig. 4, in the present embodiment, the composite film 100 further includes a first substrate 30, a second substrate 40, and a glue layer 50, wherein the glue layer 50 is located between the first substrate 30 and the second substrate 40, and the various film layers included in the composite film 100 in the present embodiment have various arrangement modes, which specifically include the following arrangement modes:
with continued reference to fig. 2, the first composite layer 10 and the second composite layer 20 are respectively disposed on two sides of the adhesive layer 50 and tightly attached to two sides of the adhesive layer 50;
with continued reference to fig. 3, the first composite layer 10 and the second composite layer 20 are respectively disposed on two sides of the second substrate 40, and are closely attached to two sides of the second substrate 40;
with continued reference to fig. 4, the first composite layer 10 and the second composite layer 20 are respectively disposed on two sides of the first substrate 30 and closely attached to two sides of the second substrate 40;
in the above embodiment, the adhesive layer 50 is always located between the first substrate 30 and the second substrate 40, and the refractive index of the first sub-layer 12 in the first composite layer 10 to the refractive index of the second sub-layer 21 in the second composite layer 20 always shows a rule of decreasing first and increasing second, no matter how the positions of the respective layers in the composite layer 100 are changed, the proportion of P polarized light in light reflected by the composite layer 100 can be increased, the user experience of a driver viewing the composite layer 100 when wearing a pair of goggles is improved, and in addition, the positions of the first composite layer 10 and the second composite layer 20 can be flexibly set according to the actual manufacturing requirements.
Optionally, fig. 5 is a schematic structural diagram of another composite film layer 100 provided in the embodiment of the present application, please refer to fig. 5, which further includes: the transition layer 60 is located between the first composite layer 10 and the second composite layer 20, the first composite layer 10, the transition layer 60 and the second composite layer 20 are sequentially stacked, and the refractive index of any one of the first composite layer 10 and the second composite layer 20 is greater than that of the transition layer 60.
It should be noted that the embodiment shown in fig. 5 only schematically shows a relative positional relationship diagram of the first composite layer 10, the transition layer 60, and the second composite layer 20, and does not represent an actual thickness.
Specifically, as shown in fig. 5, in the present embodiment, the composite film layer 100 further includes a transition layer 60, the transition layer 60 is located between the first composite layer 10 and the second composite layer 20, and the first composite layer 10, the transition layer 60 and the second composite layer 20 are sequentially stacked and closely arranged, the arrangement of the transition layer 60 still conforms to the rule that the refractive index of the first sub-layer 12 decreases first and then increases to the refractive index of the second sub-layer 21, so that the refractive index of the transition layer 60 is smaller than the refractive index of any one of the first composite layer 10 and the second composite layer 20, which plays a role of transition, and the refractive index of the first sub-layer 12 adjacent to the transition layer 60 is smaller than the refractive index of the second sub-layer 21 adjacent to the transition layer 60, so that the first composite layer 10, the transition layer 60 and the second composite layer 20 can be taken as a whole, wherein the whole composite layer includes a plurality of positional relationships, and in addition, the whole composite layer can still improve the proportion of P polarized light in the light reflected, the user experience of viewing the composite film layer 100 when the driver wears the shutter glasses is improved.
Optionally, fig. 6 is another schematic structural diagram of the composite film layer 100 provided in the embodiment of the present application, fig. 7 is another schematic structural diagram of the composite film layer 100 provided in the embodiment of the present application, and fig. 8 is another schematic structural diagram of the composite film layer 100 provided in the embodiment of the present application, please refer to fig. 5 to 8, in which the first composite layer 10, the transition layer 60, and the second composite layer 20 are located on a side of the first substrate 30 close to the glue layer 50, as shown in fig. 5; alternatively, the first composite layer 10, the transition layer 60 and the second composite layer 20 are located on the side of the second substrate 40 away from the glue layer 50, as shown in fig. 6; alternatively, the first composite layer 10, the transition layer 60 and the second composite layer 20 are located on the side of the second substrate 40 adjacent to the glue layer 50, as shown in fig. 7; (ii) a Alternatively, the first composite layer 10, the transition layer 60, and the second composite layer 20 are located on the side of the first substrate 30 away from the glue layer 50, as shown in FIG. 8.
It should be noted that the embodiments shown in fig. 5 to 8 only schematically show the relative position relationship among the first composite layer 10, the second composite layer 20, the transition layer 60, the first substrate 30, the second substrate 40 and the glue layer 50, and do not represent the actual thickness of each film layer.
Specifically, as shown in fig. 5 to 8, in the above embodiment, the first composite layer 10, the transition layer 60, and the second composite layer 20 are sequentially stacked and arranged to serve as an integral composite layer, optionally, the integral composite layer may be located on a side of the second substrate 40 away from the adhesive layer 50, the integral composite layer may be located on a side of the second substrate 40 close to the adhesive layer 50, the integral composite layer may be located on a side of the first substrate 30 close to the adhesive layer 50, and the integral composite layer may be located on a side of the first substrate 30 away from the adhesive layer 50, so that the positions of the integral composite layer may be flexibly set according to actual manufacturing requirements.
Optionally, fig. 9 is another schematic structural diagram of a composite film layer 100 provided in an embodiment of the present disclosure, please refer to fig. 9, in which a plurality of first composite layers 10 are provided, a plurality of second composite layers 20 are provided, the first composite layers 10 and the second composite layers 20 are alternately stacked, and a total number of the first composite layers 10 and the second composite layers 20 is 4 to 10.
It should be noted that the embodiment shown in fig. 9 only schematically shows the relative position relationship between the composite film layer 100 and the first composite layer 10 and the second composite layer 20, and does not represent the actual thickness of each film layer.
Specifically, as shown in fig. 9, in the present embodiment, the same composite film layer 100 may include a plurality of first composite layers 10 and a plurality of second composite layers 20, the first composite layers 10 and the second composite layers 20 are alternately stacked, and optionally, the number of the first composite layers 10 and the number of the second composite layers 20 may be equal, for example, the first composite layers are three layers, the second composite layers are three layers, that is, each first composite layer is a layer of the second composite layer corresponding to the first composite layer, the total number of the first composite layers 10 and the second composite layers 20 added together is 4 to 10, and the first composite layers 10 and the second composite layers 20 are periodically arranged, so that the total reflectivity is improved, the brightness of the light emitting component providing the light source in the backlight module of the display device is reduced, and the power consumption is further reduced by adjusting the number of the first composite layers 12 and the second composite layers 21, the proportion of the P polarized light in the light reflected by the composite film layer 100 can be improved, and the user experience of watching the composite film layer 100 when a driver wears the anti-dazzling glasses is improved.
Optionally, the transition layer 60, the first sub-layer 12 and the second sub-layer 21 are each less than 200nm thick.
Specifically, according to the limitation on the total number of the first sub-layer 12 and the second sub-layer 21, namely, the total number of the first sub-layer 12 and the second sub-layer 21 is 4-20, the total number of the first composite layer 10 and the second composite layer 20 is 4-10, and the basic functions of the composite film are satisfied by combining the overall thickness of the composite film, which affects the viewing comfort of a driver, if the thickness of the transition layer 60, the first sub-layer 12 and the second sub-layer 21 is limited to be less than 200nm, on one hand, the overall thickness of the composite film is not affected by the viewing comfort of the driver, and on the other hand, the composite film is enabled to realize the basic functions.
It should be noted that fig. 10 is a schematic diagram of a simulation provided in the embodiment of the present application, fig. 11 is another schematic diagram of the simulation provided in the embodiment of the present application, fig. 12 is another schematic diagram of the simulation provided in the embodiment of the present application, fig. 13 is another schematic diagram of the simulation provided in the embodiment of the present application, a horizontal axis in fig. 10 and fig. 12 represents a light wavelength, a vertical axis represents a reflectance, a horizontal axis in fig. 11 and fig. 13 represents a light wavelength, and a vertical axis represents a transmittance, on one hand, the composite film layer of the present application increases the percentage of P-polarized light transmitted by the composite film layer by adding the first composite layer 10 and the second composite layer 20; on the other hand, the overall reflectivity can be improved and the P-polarized light ratio can be maintained by adjusting the thickness of the first sub-layer 12 in the first composite layer 10 and the thickness of the second sub-layer 21 in the second composite layer 20, and adjusting the number of the first sub-layer 12 and the second sub-layer 21, as shown in fig. 10 and 11, in a general case, the incident angle of light incident on the composite film layer is 40 ° to 60 °, when light is incident on the glass provided with the composite film layer and the glass not provided with the composite film layer at the same incident angle of 45 °, the first sub-layer is provided with 6 layers, and the second sub-layer is provided with 4 layers, compared with the common glass not provided with the first composite layer 10 and the second composite layer 20, the overall reflectivity of the glass provided with the composite film layer is 10.95% (as shown by a dotted line in fig. 10) in the visible light band, while the overall reflectivity of the glass not provided with the composite film layer is, the total reflectivity is improved, in addition, the proportion of P polarized light of the glass provided with the composite film layer to the total reflected light is improved to 34.8%, namely the proportion of P polarized light is improved to 3.81% (shown as a solid line in fig. 10), while the proportion of P polarized light of the glass not provided with the composite film layer is 0.89%, compared with the proportion of the glass not provided with the composite film layer, the proportion is improved by 3.7 times, and the driving experience of a driver wearing the goggles is better improved, in addition, when the first sub-layer is provided with 6 layers and the second sub-layer is provided with 4 layers, when light vertically enters the glass, the total transmissivity of the glass provided with the composite film layer is 89.66% (shown as a solid line in fig. 11), the total transmissivity of the glass not provided with the composite film layer is 92.03% (shown as a dotted line in fig. 11), and the difference of the total transmissivity is only 2.6%, and the function of the glass is not influenced. For example, when light is incident on the composite film layer at the same angle as in the above embodiment, referring to fig. 12 and 13, the number of the first sub-layers 12 is adjusted to 5, and the number of the second sub-layers 21 is adjusted to 3, the total reflectance of the composite film layer in the visible light band is 19.65% (shown by a dotted line in fig. 12), the proportion of the P-polarized light is increased to 4.16% (shown by a solid line in fig. 12), and at this time, the proportion of the P-polarized light in the total reflected light of the glass in which the composite film layer is disposed is increased to 21.2%, and although the proportion of the P-polarized light in the total reflected light is not increased, the total reflectance is increased. In addition, when the first sublayer is provided with 5 layers and the second sublayer is provided with 3 layers, when light vertically enters the glass, the overall transmittance of the glass provided with the composite film layer is 81.82% (shown by a solid line in fig. 13) and the overall transmittance of the glass without the composite film layer is 92.03% (shown by a dotted line in fig. 13) in a visible light band, and compared with the case where the first sublayer is provided with 6 layers and the second sublayer is provided with 4 layers, the overall transmittance is reduced to some extent, but the function of the composite film layer is not affected. In this way, the total reflectivity of the composite film layer can be improved by adjusting the number of the first sub-layer 12 and the second sub-layer 21 and adjusting the thicknesses of the first sub-layer 12 and the second sub-layer 21, and the ratio of P polarized light can be improved, so as to enhance the beneficial effects brought by the addition of the first composite layer 10 and the second composite layer 20.
Optionally, the materials of the first sub-layer 12 and the second sub-layer 21 are both silicon oxynitride, where the sum of the mass fraction of oxygen and the mass fraction of nitrogen in the silicon oxynitride is equal to 1.
Specifically, the first sublayer 12 and the second sublayer 21 are made of silicon oxynitride, the sum of the mass ratios of oxygen and nitrogen in the silicon oxynitride is equal to 1, and the sum of the mass ratios of oxygen and nitrogen is limited, so that the mass ratio of nitrogen and oxygen can be well controlled and changed, and the first sublayer 12 and the second sublayer 21 form a gradient refractive index, wherein the refractive index of each sublayer is changed by changing the mass ratio of nitrogen and oxygen, but the sum of the mass ratio of nitrogen and oxygen is equal to 1.
Optionally, in a direction in which the first composite layer 10 points to the second composite layer 20, a ratio of a mass fraction of oxygen element to a mass fraction of nitrogen element in the material silicon oxynitride of the first sub-layer 12 changes from less than 1 to greater than 1;
in the direction in which the first composite layer 10 points toward the second composite layer 20, the ratio of the mass fraction of oxygen elements to the mass fraction of nitrogen elements in the material silicon oxynitride of the second sub-layer 21 changes from greater than 1 to less than 1.
Specifically, along the first composite layer 10Pointing to the direction of the second composite layer 20, the ratio of the mass ratio of the oxygen element in the silicon oxynitride material of the first sublayer 12 to the mass ratio of the nitrogen element is smaller than 1 and larger than 1, which indicates that the mass ratio of the nitrogen element in the oxynitride material of the first sublayer 12 gradually decreases and the mass ratio of the oxygen element gradually increases; the ratio of the mass ratio of oxygen element to the mass ratio of nitrogen element in the silicon oxynitride of the material of the second sub-layer 21 is greater than 1 and less than 1, which indicates that the mass ratio of nitrogen element in the oxynitride in the first sub-layer 12 gradually increases and the mass ratio of oxygen element gradually decreases, optionally, along the direction in which the first composite layer points to the second composite layer, the first sub-layer 12 is SiO0.2N0.8The second first sublayer 12 being SiO0.3N0.7The third first sublayer 12 is SiO0.5N0.5The fourth first sublayer 12 is SiO0.6N0.4The first and second sub-layers 21 are SiO0.8N0.2The second sublayer 21 is SiO0.6N0.4The third second sublayer 21 is SiO0.5N0.5The fourth second sublayer 21 is SiO0.3N0.7The fifth second sublayer 21 is SiO0.2N0.8In the above case, 4 first sub-layers 12 and 5 second sub-layers 21 are provided, and the refractive index of the adjacent first sub-layers 12 and second sub-layers 21 may include three cases, that is, the refractive index of the first sub-layer 12 is greater than the refractive index of the second sub-layer 21 (for example, the refractive index of the first sub-layer 12 is SiO0.6N0.4The refractive index of the second sublayer 21 is SiO0.5N0.5I.e., when the second sublayer 21 is provided with three layers in the above case), the refractive index of the first sublayer 12 is equal to the refractive index of the second sublayer 21 (for example, the refractive index of the first sublayer 12 is SiO)0.6N0.4The refractive index of the second sublayer 21 is SiO0.6N0.4That is, when the second sublayer 21 is provided with four layers in the above case), the refractive index of the first sublayer 12 is smaller than the refractive index of the second sublayer 21 (for example, the refractive index of the first sublayer 12 is SiO)0.6N0.4The refractive index of the second sublayer 21 is SiO0.8N0.2) In all three cases, the mass ratio of nitrogen element and the mass ratio of oxygen element can be changed toThe refractive indexes of the first sub-layer 12 and the second sub-layer 21 are changed, the proportion of P polarized light in light reflected by the composite film layer 100 is further improved, and the user experience of a driver watching the composite film layer 100 when wearing the anti-dazzling glasses is improved.
Optionally, the refractive index of the first substrate 30 and the refractive index of the second substrate 40 are both 1.45 ~ 1.55.
Specifically, the refractive indexes of the first substrate 30 and the second substrate 40 in the embodiment are 1.45 to 1.55, and optionally, under the above refractive indexes, the first substrate and the second substrate may be glass, the first substrate 30 and the second substrate 40, and the glue layer 50 all belong to essential film layers of the composite film layer 100, and the refractive indexes thereof are defined according to materials thereof, and in general, the refractive index of the first substrate and the refractive index of the second substrate are 1.45 to 1.55, so that light can be favorably refracted on the premise that the first substrate and the second substrate are made of transparent materials.
Optionally, as shown in fig. 2, the thickness of the first substrate 30 and the thickness of the second substrate 40 are both 0.5mm to 5 mm.
Specifically, as shown in fig. 2, the thickness d1 of the first substrate 30 and the thickness d2 of the second substrate 40 are both 0.5mm to 5mm, which does not cause too large thickness of the entire composite film layer, and can also achieve the functions of the first substrate and the second substrate.
Alternatively, the adhesive layer 50 is any one of polyvinyl butyral, an ionic interlayer, an ethylene-vinyl acetate copolymer, or a high molecular weight polyurethane composition.
Specifically, the material of the adhesive layer 50 may be one of polyvinyl butyral (PVB), an ionic interlayer film (SGP), ethylene-vinyl acetate copolymer (EVA), or a polymer Polyurethane (PU), and all of the above materials may be used as an interlayer material of the composite film layer, and have the advantages of good transparency, strong impact force, and the like.
Optionally, the first refractive layer 11 and the second refractive layer 22 are any one of niobium pentoxide, titanium dioxide, silicon oxynitride, hafnium dioxide, zirconium dioxide, and tantalum pentoxide.
Specifically, the material of the first refractive layer 11 and the second refractive layer 22 may be one of niobium pentoxide, titanium dioxide, silicon oxynitride, hafnium dioxide, zirconium dioxide, and tantalum pentoxide, as long as the refractive indexes of the first refractive layer 11 and the second refractive layer 22 are ensured to be larger than the refractive indexes of the first sub-layer 12 and the second sub-layer 21.
Based on the same inventive concept, fig. 14 is a schematic structural diagram of a window 200 provided in an embodiment of the present application, please refer to fig. 14, which further provides a window 200, the display window 200 includes a composite film 100, the composite film 100 is the composite film 100 provided in any of the embodiments of the present application, and repeated details are not repeated, and the window 200 provided in the present application may be: any of the transmission windows 200 having a head-up display function, such as automobile windshields, military windshields, and civil aviation windshields.
It should be noted that fig. 14 only schematically illustrates one shape of the window 200, which includes a plurality of shapes, and the present application is not limited thereto.
Based on the same inventive concept, fig. 15 is a schematic structural diagram of a display system 300 provided in the present embodiment, please refer to fig. 15 in combination with fig. 2, the present application further provides a display system 300, the display system 300 includes a display device 310 and a composite film 100, the composite film 100 is the display film provided in any of the embodiments of the present application, and the repetition is not repeated, wherein light emitted by the display device 310 is transmitted to the composite film 100 and sequentially passes through the second composite layer 20 and the first composite layer 10.
It should be noted that the embodiment shown in fig. 15 only schematically shows a relative position relationship diagram of the display device 310 and the composite film layer 100, and does not represent an actual size.
Optionally, as shown in fig. 15, the display device 310 includes: a display panel 320 and at least one reflector 330, wherein light emitted from the display panel 320 is transmitted to the composite film 100 through the reflector 330.
Specifically, with continuing reference to fig. 15 and with reference to fig. 2, the display device 310 in this embodiment is a head-up display device 310(HUD), the head-up display device 310 is configured to enable the driver to see important information required for driving without lowering his head, i.e. the important information in the display device 310 is projected onto the windshield right in front of the driver, in order to implement the above-mentioned technology, the display device 310 includes at least one reflector 330, the display device 310 further includes a display panel 320, and light emitted from the display panel 320 is transmitted to the composite film 100 through the reflector 330, so as to implement the projection of the important information in the display panel 320 onto the composite film 100, thereby facilitating the driving process.
It should be noted that, with reference to fig. 15 and with reference to fig. 2, light emitted by the display panel 320 is transmitted to the composite film layer 100, wherein an acute angle between the light and the composite film layer 100 is 40 ° to 50 °, and optionally, may also be 45 °, so that P polarized light in the light reflected by the composite film layer 100 is increased, the brightness of the light passing through the goggles is stronger, and the driving experience of a driver wearing the light blinds is improved.
Based on the same inventive concept, fig. 16 is a schematic structural diagram of an automobile 400 provided in an embodiment of the present application, please refer to fig. 16 in combination with fig. 15, which further provides an automobile, the automobile includes a main driving seat 410, an instrument desk 420 and a display system 300, the display system 300 is the display system 300 provided in any of the embodiments of the present application, and repeated descriptions are omitted, wherein the display system 300 includes a composite film layer 100 and a display device 310, the instrument desk 420 is located between the composite film layer 100 and the main driving seat 410, the display device 310 is located in the instrument desk 420, and the automobile provided in the present application may be any product with indoor driving.
It should be noted that the embodiment shown in fig. 16 only schematically shows a relative position relationship diagram of the main driver's seat 410 and the instrument desk 420, and does not represent actual dimensions.
Specifically, please refer to fig. 16 in combination with fig. 15, the display system 300 is installed on the vehicle in this embodiment, and to realize the function of the display system 300, it needs to be set according to a certain scene, that is, the display device 310 is located in the instrument desk 420, the instrument desk 420 is located right in front of the driver, and the driver needs to look down to observe the information on the instrument desk 420, which may affect the driving process, so that it is necessary to project important information right in front of the driver's sight line, that is, to project the important information in the display device 310 onto the composite film 100 by using the windshield, that is, the composite film 100, right in front of the driver's sight line, so as to improve the driving experience of the driver.
According to the embodiments, the application has the following beneficial effects:
according to the composite film layer, the window, the display system and the automobile comprising the composite film layer, the first composite layer and the second composite layer are arranged, the refractive indexes of all sub-film layers in the first composite layer and the second composite layer are limited, and the trend that the refractive indexes of all first sub-layers to the refractive indexes of all second sub-layers are gradually decreased and then gradually increased is realized on the whole along the direction that the first composite layer points to the second composite layer; on the other hand, when the driver wears the lens-shade, the proportion of P polarized light that sees through the lens-shade improves, makes the light that sees through the lens-shade more, and luminance is stronger for the driver can be good obtain by the information of compound rete reflection, improves driver's visual experience effect.
The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.

Claims (17)

1. A composite film layer, comprising: the first composite layer and the second composite layer are arranged in sequence;
the first composite layer comprises a plurality of first sub-layers, namely a first refraction layer and a first sub-layer, which are sequentially arranged, the refractive index of the first sub-layer is smaller than that of the first refraction layer, the refractive index of each first sub-layer is gradually reduced along the direction that the first composite layer points to the second composite layer, and the first refraction layer is positioned on one side of the first sub-layer, which is far away from the second composite layer;
the second composite layer comprises a plurality of second sub-layers and a plurality of second refraction layers which are sequentially arranged, the refractive index of each second sub-layer is smaller than that of each second refraction layer, the refractive index of each second sub-layer increases progressively along the direction of the first composite layer pointing to the second composite layer, and the second refraction layers are positioned on one sides of the second sub-layers far away from the first composite layer.
2. The composite film layer of claim 1, wherein the number of the first sub-layers is m, the number of the second sub-layers is n, and m + n ranges from 4 to 20.
3. The composite film layer of claim 1 further comprising:
the adhesive layer is positioned between the first substrate and the second substrate;
the first composite layer and the second composite layer are respectively positioned on two sides of the adhesive layer, and the first composite layer, the adhesive layer and the second composite layer are sequentially stacked and arranged;
or the first composite layer and the second composite layer are respectively positioned on two sides of the second substrate, and the first composite layer, the second substrate and the second composite layer are sequentially stacked and arranged;
or the first composite layer and the second composite layer are respectively positioned on two sides of the first substrate, and the first composite layer, the first substrate and the second composite layer are sequentially stacked and arranged.
4. The composite film layer of claim 1 further comprising: the transition layer is positioned between the first composite layer and the second composite layer, the first composite layer, the transition layer and the second composite layer are sequentially stacked, and the refractive index of any one film layer in the first composite layer and the second composite layer is greater than that of the transition layer.
5. The composite film layer of claim 4 wherein the first composite layer, the transition layer, and the second composite layer are on a side of the second substrate away from the bondline; or the first composite layer, the transition layer and the second composite layer are positioned on one side of the second substrate close to the glue layer; or the first composite layer, the transition layer and the second composite layer are positioned on one side of the first substrate close to the glue layer; or the first composite layer, the transition layer and the second composite layer are positioned on one side of the first substrate far away from the glue layer.
6. The composite film layer as set forth in claim 5, wherein a plurality of the first composite layers are provided, a plurality of the second composite layers are provided, the first composite layers and the second composite layers are alternately stacked, and the total number of the first composite layers and the second composite layers is 4 to 10.
7. The composite film layer of claim 4 wherein the transition layer, the first sub-layer, and the second sub-layer are each less than 200nm thick.
8. The composite film layer of claim 1, wherein the first sub-layer and the second sub-layer are both made of silicon oxynitride, and a sum of a mass fraction of oxygen and a mass fraction of nitrogen in the silicon oxynitride is equal to 1.
9. The composite film layer of claim 1, wherein a ratio of a mass fraction of oxygen element to a mass fraction of nitrogen element in the material silicon oxynitride of the first sub-layer changes from less than 1 to greater than 1 in a direction from the first composite layer toward the second composite layer;
in the direction of the first composite layer pointing to the second composite layer, the ratio of the mass proportion of oxygen element to the mass proportion of nitrogen element in the silicon oxynitride material of the second sub-layer is changed from more than 1 to less than 1.
10. The composite film layer of claim 1, wherein the refractive index of the first substrate and the refractive index of the second substrate are both 1.45-1.55.
11. The composite film layer of claim 1, wherein the thickness of the first substrate and the thickness of the second substrate are both 0.5mm to 5 mm.
12. The composite film of claim 1, wherein the adhesive layer is one of polyvinyl butyral, an ionic intermediate film, an ethylene-vinyl acetate copolymer, or a high molecular weight polyurethane composition.
13. The composite film layer of claim 1, wherein the first and second refractive layers are any one of niobium pentoxide, titanium dioxide, silicon oxynitride, hafnium dioxide, zirconium dioxide, and tantalum pentoxide.
14. A window comprising the composite film layer of any one of claims 1-13.
15. A display system comprising the composite film layer of any one of claims 1-13 and a display device;
the light emitted by the display device of the display device is transmitted to the composite film layer and sequentially passes through the second composite layer and the first composite layer.
16. The display system according to claim 15, wherein the display device comprises: the display panel comprises a display panel and at least one reflector, wherein light rays emitted by the display panel are transmitted to the composite film layer through the reflector.
17. An automobile comprising primary driver's seats, a dashboard, and a display system according to any of claims 15 to 16, the display system comprising a composite film layer and a display device, the dashboard being located between the primary driver's seats in the composite film layer, the display device being located within the dashboard.
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