CN208264117U - A kind of automatic anti-dazzle automotive electronics rearview mirror - Google Patents
A kind of automatic anti-dazzle automotive electronics rearview mirror Download PDFInfo
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- CN208264117U CN208264117U CN201820885394.7U CN201820885394U CN208264117U CN 208264117 U CN208264117 U CN 208264117U CN 201820885394 U CN201820885394 U CN 201820885394U CN 208264117 U CN208264117 U CN 208264117U
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Abstract
The utility model relates to a kind of automatic anti-dazzle automotive electronics rearview mirrors, including shell, front glass substrate, rear glass substrate, preceding polaroid and back reflection formula polaroid that housing upper face is set, liquid crystal layer is equipped between front glass substrate and rear glass substrate, preceding polaroid and back reflection formula polaroid are respectively provided at the outside of front glass substrate and rear glass substrate, are equipped with glass cover-plate in the outside of preceding polaroid；Liquid crystal aligning layer is equipped on the opposite flank of front glass substrate and rear glass substrate, liquid crystal layer is between front glass substrate and the liquid crystal aligning layer of rear glass substrate.The utility model by the transparency conducting layer of front glass substrate and rear glass substrate biasing to change the orientation of the liquid crystal molecule of liquid crystal layer, and then adjust incident and reflected light polarization state, in the presence of preceding polaroid and back reflection formula polaroid, realize the control to rearview mirror intensity of reflected light, the response time of rearview mirror is greatly lowered, plays better antiglare effect in time.
Description
Technical field
The utility model relates to automobile rearview mirror technical fields, and in particular to a kind of automatic anti-dazzle automotive electronics backsight
Mirror.
Background technique
With the increasingly raising to automobile product safety and comfort, the development of automatic anti-dazzle rearview mirror technology is gradually
Obtain the attention in market.
In general, being installed on the automatic anti-dazzle rearview mirror of interior (and/or outside vehicle) using electrochromic technical side
Case.The structure of electrochromism eyeglass is that with two panels there are the glass central filler electrochromic solutions of conducting function to form.Just
When normal state, the cathode in electrochromic solutions is in the colourless state of oxidation, and anode is then in the normal state of yellowish.Such as
When conductive layer passes to Dc bias, cathode obtains electronics as reduction-state by the cathode of power supply and switchs to indigo plant by colorless state
Color；Anode is then to switch to oxidation state by the anode release electronics of power supply and switch to yellow by colorless state.When two kinds of color mixing
When the color that is obtained by vision be bottle green.Because electrochromic solutions produce the variation of color so producing extinction effect,
Reflectivity can be reduced with bias, play the role of anti-glare.
And this technology has several limitations.Firstly, the response time is slower, even if in room ambient conditions, maximum reflection-> minimum
One circulation of reflection-> maximum reflection is also required to more than ten seconds, even to be reached 30 seconds when low temperature.It is difficult to play anti-dazzle in time
Effect.Secondly, electrochromism is that electrolyte is made to become dark due to electroluminescent redox reaction, incident light is absorbed, is weakened anti-
Light is penetrated, therefore, the color of reflection changes with voltage, is not that the monochromatic of grey between neutral white-> black-> bletilla becomes
Change.
Summary of the invention
The utility model is to overcome defect described in the above-mentioned prior art, provides a kind of automatic anti-dazzle automotive electronics backsight
Mirror.
In order to solve the above technical problems, the technical solution of the utility model is as follows:
A kind of automatic anti-dazzle automotive electronics rearview mirror, including shell, be arranged in housing upper face front glass substrate and after
Glass substrate is equipped with liquid crystal layer between the front glass substrate and rear glass substrate, polaroid and back reflection formula before further including
Polaroid, the preceding polaroid and back reflection formula polaroid are respectively provided at the outside of the front glass substrate and rear glass substrate,
Glass cover-plate is equipped in the outside of the preceding polaroid；It is all provided on the opposite flank of the front glass substrate and rear glass substrate
There is liquid crystal aligning layer, the liquid crystal layer is between front glass substrate and the liquid crystal aligning layer of rear glass substrate.
Further, as optimal technical scheme, the preceding polaroid includes being in neutrality using high-permeability and color
Linear polarizer plate；Light-absorption layer is equipped in the outside of the back reflection formula polaroid.
Further, as optimal technical scheme, the front glass substrate includes the front glass with transparency conducting layer, institute
Stating rear glass substrate includes the rear glass with transparency conducting layer.
Further, as optimal technical scheme, the glass cover-plate and the preceding polaroid, the preceding polaroid and institute
It states front glass substrate and the back reflection formula polaroid and the rear glass substrate passes through optics glue laminating.
Further, as optimal technical scheme, pattern of rows and columns of the liquid crystal molecule of the liquid crystal layer includes vertical orientation
Mode, negative liquid crystal molecule and the front glass substrate and rear glass substrate in the liquid crystal molecule of the vertical alignment mode at
88 degree to 89.5 degree or extremely -89.5 degree angles arrangements of -88 degree, the negative liquid crystal molecule is in the front glass substrate and rear glass
In the front glass substrate and the projecting direction of rear glass substrate plane and the preceding polarisation under the liquid crystal aligning layer effect of substrate
The light transmission shaft of piece is 175nm≤nd at 45 degree of angles or -45 degree angles, the optical path difference range of the liquid crystal layer of the vertical alignment mode
≤ 375nm or 400nm≤nd≤600nm.
Further, as optimal technical scheme, the vertical alignment mode according to the preceding polaroid and it is described after it is anti-
The light transmission shaft angulation difference for penetrating formula polaroid is divided into normal white mode and normally black mode；
Under normal white mode, the light transmission shaft angulation of the preceding polaroid and the back reflection formula polaroid is 90 degree
Or -90 degree；The configuration of the back reflection formula polaroid is the polarised light reflection of the light transmission shaft of polaroid before making to be parallel to, perpendicular to
The polarized light transmission of the light transmission shaft of preceding polaroid；The optical path difference of the liquid crystal layer is reduced, the rearview mirror with the increase of bias
Reflectivity reduce with the increase of bias；
Under normally black mode, the light transmission shaft angulation of the preceding polaroid and the back reflection formula polaroid is 0 degree；
The configuration of the back reflection formula polaroid is the polarized light transmission of the light transmission shaft of polaroid before making to be parallel to, perpendicular to preceding polaroid
Light transmission shaft polarised light reflection；The optical path difference of the liquid crystal layer is reduced, the reflectivity of the rearview mirror with the increase of bias
Increase with the increase of bias.
Further, as optimal technical scheme, pattern of rows and columns of the liquid crystal molecule of the liquid crystal layer includes horizontal alignment
Mode, positive liquid crystal molecules and the front glass substrate and rear glass substrate in the liquid crystal molecule of the horizontal alignment mode at
0.5 degree to 2 degree or extremely -2 degree angles arrangements of -0.5 degree, the positive liquid crystal molecules are in the front glass substrate and rear glass substrate
Liquid crystal aligning layer effect under in the front glass substrate and the projecting direction of rear glass substrate plane and the preceding polaroid
Light transmission shaft at 45 degree of angles or -45 degree angles, the optical path difference range of the liquid crystal layer of the horizontal alignment mode be 175nm≤nd≤
375nm or 400nm≤nd≤600nm.
Further, as optimal technical scheme, the horizontal alignment mode according to the preceding polaroid and it is described after it is anti-
The light transmission shaft angulation difference for penetrating formula polaroid is divided into normal white mode and normally black mode；
Under normal white mode, the light transmission shaft angulation of the preceding polaroid and the back reflection formula polaroid is 0；Institute
The configuration for stating back reflection formula polaroid is the polarised light reflection made perpendicular to the light transmission shaft of preceding polaroid, polaroid before being parallel to
The polarized light transmission of light transmission shaft；The optical path difference of the liquid crystal layer is reduced with the increase of bias, the reflectivity of the rearview mirror with
The increase of bias and reduce；
Under normally black mode, the light transmission shaft angulation of the preceding polaroid and the back reflection formula polaroid is 90 degree
Or -90 degree；The configuration of the back reflection formula polaroid is the polarised light reflection of the light transmission shaft of polaroid before making to be parallel to, perpendicular to
The polarized light transmission of the light transmission shaft of preceding polaroid；The optical path difference of the liquid crystal layer is reduced, the rearview mirror with the increase of bias
Reflectivity increase with the increase of bias.
Further, as optimal technical scheme, pattern of rows and columns of the liquid crystal molecule of the liquid crystal layer includes conventional distortion
Alignment mode, the positive liquid crystal molecules in the liquid crystal molecule of the routine twisted-oriented mode are from front glass substrate to rear glass base
Plate is at 90 degree or -90 degree aligned twisteds, projection and the preceding polaroid of the positive liquid crystal molecules in front glass substrate plane
Light transmission shaft at 0 degree of angle or an angle of 90 degrees or-an angle of 90 degrees, the optical path difference range of the liquid crystal layer of the routine twisted-oriented mode is taken as
375nm≤nd≤575nm or 900nm≤nd≤1200nm.
Further, as optimal technical scheme, the twisted-oriented mode according to the preceding polaroid and it is described after it is anti-
The light transmission shaft angulation difference for penetrating formula polaroid is divided into normal white mode and normally black mode；
Under normal white mode, the light transmission shaft angulation of the preceding polaroid and the back reflection formula polaroid is 0；Institute
The configuration for stating back reflection formula polaroid is the polarised light reflection made perpendicular to the light transmission shaft of preceding polaroid, polaroid before being parallel to
The polarized light transmission of light transmission shaft；The optical path difference of the liquid crystal layer is reduced with the increase of bias, the reflectivity of the rearview mirror with
The increase of bias and reduce；
Under normally black mode, the preceding polaroid and the back reflection formula polaroid light transmission shaft angulation are 90 degree
Or -90 degree；The configuration of the back reflection formula polaroid is the polarised light reflection of the light transmission shaft of polaroid before making to be parallel to, perpendicular to
The polarized light transmission of the light transmission shaft of preceding polaroid；The optical path difference of the liquid crystal layer is reduced, the rearview mirror with the increase of bias
Reflectivity increase with the increase of bias.
Compared with prior art, the beneficial effect of technical solutions of the utility model is:
1, the rearview mirror of the utility model by using liquid crystal layer LCD technology principle, front glass substrate and after
Biasing on the transparency conducting layer of glass substrate to change the orientation of the liquid crystal molecule of liquid crystal layer, and then adjust it is incident and
The polarization state of reflected light, meanwhile, in the presence of preceding polaroid and back reflection formula polaroid, realize the control to intensity of reflected light
System；The response time of rearview mirror is greatly lowered so that in room temperature, the response time from maximum reflection-> minimal reflection->
One of maximum reflection circulates within 30ms；In low temperature -40degC, the response time can also be less than 1s；So that rearview mirror and
When play better antiglare effect.
2, the rearview mirror of the utility model by using liquid crystal layer LCD technology principle so that the reflection of rearview mirror
Color keep monochrome；Back reflection formula polaroid is cooperated with pattern of rows and columns of the liquid crystal molecule of six kinds of liquid crystal layers respectively simultaneously
Design, realizes the operating mode of six kinds of rearview mirrors, so that the application range of rearview mirror is wider.
Detailed description of the invention
Fig. 1 is the mirror surface structure figure of the rearview mirror of the utility model.
Fig. 2 is the mirror surface direction schematic diagram of the rearview mirror of the utility model.
Fig. 3 is the normal white mode original state schematic diagram of 1 vertical alignment mode of the embodiments of the present invention.
Fig. 4 is the normal white mode biasing schematic diagram of 1 vertical alignment mode of the embodiments of the present invention.
Fig. 5 is the normally black mode original state schematic diagram of 1 vertical alignment mode of the embodiments of the present invention.
Fig. 6 is the normally black mode biasing schematic diagram of 1 vertical alignment mode of the embodiments of the present invention.
Fig. 7 is the normal white mode original state schematic diagram of the horizontal alignment mode of the embodiments of the present invention 2.
Fig. 8 is the normal white mode biasing schematic diagram of the horizontal alignment mode of the embodiments of the present invention 2.
Fig. 9 is the normally black mode original state schematic diagram of the horizontal alignment mode of the embodiments of the present invention 2.
Figure 10 is the normally black mode biasing schematic diagram of the horizontal alignment mode of the embodiments of the present invention 2.
Figure 11 is the normal white mode original state schematic diagram of the conventional twisted-oriented mode of the embodiments of the present invention 3.
Figure 12 is the normal white mode biasing schematic diagram of the conventional twisted-oriented mode of the embodiments of the present invention 3.
Figure 13 is the normally black mode original state schematic diagram of the conventional twisted-oriented mode of the embodiments of the present invention 3.
Figure 14 is the normally black mode biasing schematic diagram of the conventional twisted-oriented mode of the embodiments of the present invention 3.
Wherein: glass cover-plate 1, preceding polaroid are 2, front glass substrate 3, liquid crystal layer 4, rear glass substrate are 5, after
Reflecting polarized wafer is 6, light-absorption layer 7.
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；In order to better illustrate this embodiment, attached
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable；The same or similar label corresponds to same or similar
Component；The terms describing the positional relationship in the drawings are only for illustration, should not be understood as the limitation to this patent.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It is easier to be readily appreciated by one skilled in the art with feature, to make apparent define to the protection scope of the utility model.
Embodiment 1
Including shell, the mirror surface structure of housing upper face, the mirror is arranged in a kind of automatic anti-dazzle automotive electronics rearview mirror
Face structure includes glass cover-plate 1, front glass substrate 3, rear glass substrate 5, preceding polaroid 2, back reflection formula polarisation as shown in Figure 1:
Piece 6 and light-absorption layer 7 form sandwich between front glass substrate 3 and rear glass substrate 5, are marked with liquid in the sandwich
Crystal layer 4, preceding polaroid 2 and back reflection formula polaroid 6 are respectively provided at the outside of front glass substrate 3 and rear glass substrate 5, glass cover
The outside of polaroid 2, light-absorption layer 7 are located at the outside of back reflection formula polaroid 6 before plate 1 is located at；In front glass substrate 3 and rear glass
Liquid crystal aligning layer is equipped on the opposite flank of substrate 5, liquid crystal layer 4 is located at front glass substrate 3 and the liquid crystal of rear glass substrate 5 takes
To between layer.
In the present embodiment, preceding polaroid 2 includes the linear polarizer plate mirror mirror being in neutrality using high-permeability and color, preceding
Polaroid 2 plays the role of being polarized in the rearview mirror and analyzing；When we face rearview mirror, the light transmission shaft edge of preceding polaroid 2
12. -6 directions of clock；Front glass substrate 3 includes the front glass with transparency conducting layer, and rear glass substrate 5 includes with saturating
The rear glass of bright conductive layer；The liquid crystal aligning layer being arranged on the opposite flank of front glass substrate 3 and rear glass substrate 5 is by rubbing
The methods of wiping or illumination acquisition can be such that the liquid crystal molecule of liquid crystal layer 4 arranges along certain direction, and front glass substrate 3 and rear glass substrate
5 electrically conducting transparent interlayer can apply driving voltage, and the arrangement of the liquid crystal molecule of liquid crystal layer 4 can be made to change；Light-absorption layer 7 can
Non- reflected light is absorbed, these non-reflected lights is avoided to reduce the performance of entire rearview mirror.
In the present embodiment, the glass cover-plate 1 of rearview mirror and preceding polaroid 2, preceding polaroid 2 and front glass substrate 3 and
Back reflection formula polaroid 6 and rear glass substrate 5 pass through optics glue laminating.
In the present embodiment, the direction of rearview mirror is as shown in Figure 2: all parts of rearview mirror are arranged in parallel to xoz
Plane, that is, all parts of rearview mirror are perpendicular to xoy plane；Wherein, x indicates that the axis of abscissas of rearview mirror, y indicate backsight
The axis of ordinates of mirror, z indicate the vertical coordinate axis of rearview mirror；And xoz plane is horizontal plane, xoy plane is perpendicular.
Pattern of rows and columns of the liquid crystal molecule of liquid crystal layer 4 in the present embodiment includes vertical alignment mode, the vertical orientation
Mode refers to that the negative liquid crystal molecule in original state, the liquid crystal molecule of liquid crystal layer 4 is all approximately perpendicular to front glass substrate 3
Arranged with rear glass substrate 5, specifically, negative liquid crystal molecule in liquid crystal molecule and front glass substrate 3 and rear glass substrate 5 at
88 degree to 89.5 degree or -88 degree are to -89.5 degree angles arrangements, and negative liquid crystal molecule is in front glass substrate 3 and rear glass substrate 5
Liquid crystal aligning layer effect under 5 plane of front glass substrate 3 and rear glass substrate projecting direction and preceding polaroid 2 light transmission shaft at
45 degree of angles or -45 degree angles；And since negative liquid crystal molecule is approximately perpendicular to front glass substrate 3 and the arrangement of rear glass substrate 5, so that
When the transparency conducting layer of front glass substrate 3 and rear glass substrate 5 is biased V, the change in orientation of negative liquid crystal molecule is equal
Even, avoid the occurrence of display defect problem；And in this mode, the optical path difference range of liquid crystal layer 4 be 175nm≤nd≤
375nm or 400nm≤nd≤600nm.In the present embodiment, the central value of the optical path difference of liquid crystal layer 4 be taken as nd=k λ/
2, k=1 or k=2, λ=550nm.
The vertical alignment mode of the present embodiment angle according to formed by the light transmission shaft of preceding polaroid 2 and back reflection formula polaroid 6
Degree difference is divided into normal white mode and normally black mode.
Under normal white mode, the light transmission shaft angulation of preceding polaroid 2 and back reflection formula polaroid 6 is 90 degree or -90
Degree；The configuration of back reflection formula polaroid 6 is the polarised light reflection of the light transmission shaft of polaroid 2 before making to be parallel to, perpendicular to preceding polarisation
The polarized light transmission of the light transmission shaft of piece 2, that is, the configuration of back reflection formula polaroid 6 is to keep the polarised light perpendicular to xoy plane anti-
It penetrates, is parallel to the polarized light transmission of xoy plane；It is as shown in Figure 3: when be added in front glass substrate 3 and after the transparent of glass substrate 5 lead
When bias V=0 in electric layer, the negative liquid crystal molecule in the liquid crystal molecule of liquid crystal layer 4 in a state of nature, in this state,
Negative liquid crystal molecule is approximately perpendicular to front glass substrate 3 and rear glass substrate 5 and arranges, when containing polarization direction be parallel to xoy and
When entering perpendicular to the polarised light of xoy plane, because 2 permission polarization directions of preceding polaroid enter liquid perpendicular to the polarised light of xoy
Crystal layer 4, and the liquid crystal layer 4 of the negative liquid crystal molecule near vertical arrangement does not have the polarization state of the polarised light in this direction
It influences.And the configuration of back reflection formula polaroid 6 is the polarised light reflection of the light transmission shaft of polaroid 2 before making to be parallel to, perpendicular to preceding
The polarized light transmission of the light transmission shaft of polaroid 2, that is, the configuration of back reflection formula polaroid 6 is the polarised light made perpendicular to xoy plane
Reflection, is parallel to the polarized light transmission of xoy plane；Therefore, polarization direction is reflected back toward liquid crystal layer 4 perpendicular to the polarised light of xoy
And it is finally reflected back air, at this point, bias is 0, the optical path difference of liquid crystal layer 4 is maximum, and the reflectivity of rearview mirror is maximum.
It is as shown in Figure 4: when be added in front glass substrate 3 and after glass substrate 5 transparency conducting layer on bias V be gradually increased
To V0, the liquid crystal of most of negative liquid crystal molecule in the liquid crystal molecule of liquid crystal layer 4 in front glass substrate 3 and rear glass substrate 5
Gradually tendency is parallel to xoz plane under oriented layer effect, and in the projection of the face xoz projection and x-axis at 45 degree, that is, most of negative
Property liquid crystal molecule the liquid crystal aligning layer of front glass substrate 3 and rear glass substrate 5 effect under in front glass substrate 3 and rear glass base
The light transmission shaft of the projecting direction of 5 plane of plate and preceding polaroid 2 is at 45 degree of angles or -45 degree angles；Liquid crystal layer optical path difference with bias increasing
Add and reduce, in the process, intensity of reflected light gradually decreases, and finally, reflecting liquid crystal 4 is equivalent to 1/2 wave plate, then for wave
The light of a length of λ, polarized light state when reaching back reflection formula polaroid 6 are parallel to xoy plane, cannot be reflected, Zhi Nengtou
Light-absorption layer 7 is incident upon to be absorbed；At this point, the reflectivity of rearview mirror is minimum when liquid crystal layer optical path difference is nd=k λ/2.
Under normal white mode, the optical path difference of liquid crystal layer 4 reduces with the increase of bias, and the reflectivity of rearview mirror is with bias
Increase and reduce, when bias is 0, the optical path difference of liquid crystal layer 4 is maximum, and the reflectivity of rearview mirror is maximum.
Under normally black mode, the mode and normal white mode are on the contrary, in this mode, preceding polaroid 2 and back reflection formula polarisation
The light transmission shaft angulation of piece 6 is 0 degree；The configuration of back reflection formula polaroid 6 is the light transmission shaft of polaroid 2 before making to be parallel to
Polarized light transmission reflects, that is, the configuration of back reflection formula polaroid 6 is to make to put down perpendicular to the polarised light of the light transmission shaft of preceding polaroid 2
Row is reflected in the polarised light of xoy plane, perpendicular to the polarized light transmission of xoy plane；As shown in Fig. 5-6: in this mode, liquid
The optical path difference of crystal layer 4 reduces with the increase of bias, and the reflectivity of rearview mirror increases with the increase of bias；It is zero in bias
When, the reflectivity of rearview mirror is minimum.
In the attached drawing of the present embodiment, single arrow line segment indicates optical propagation direction, and both ends thereon have the line segment form of arrow
Show and be parallel to xoy plane or the polarization direction perpendicular to z-axis, stain indicates perpendicular to xoy plane or be parallel to the polarization of z-axis
Direction.
In the present embodiment, due to being liquid crystal layer 4 between front glass substrate 3 and rear glass substrate 5, and the original of liquid crystal layer 4
Beginning differently- oriented directivity is determined by the liquid crystal aligning layer being arranged on front glass substrate 3 and rear glass substrate 5；It is added in front glass substrate
3 and rear glass substrate 5 transparency conducting layer on bias V can change the negative liquid crystal molecule in the liquid crystal molecule of liquid crystal layer 4
Orientation, and then incident and reflected light polarization state is adjusted, in the participation of preceding polaroid 2 and back reflection formula polaroid 6
Under, realize the control to intensity of reflected light；The response time of rearview mirror is greatly lowered, so that in room temperature, the response time
It is circulated within 30ms from maximum reflection-> minimal reflection-> maximum reflection one；In low temperature -40degC, the response time
Also it can be less than 1s；So that rearview mirror plays better antiglare effect in time.
Embodiment 2
The present embodiment is difference from example 1 is that pattern of rows and columns of the liquid crystal molecule of liquid crystal layer 4 is different.
Pattern of rows and columns of the liquid crystal molecule of liquid crystal layer 4 includes horizontal alignment mode, the horizontal alignment in the present embodiment
Mode refers to that the positive liquid crystal molecules in original state, the liquid crystal molecule of liquid crystal layer 4 are all approximately parallel to front glass substrate 3
It is arranged with rear glass substrate 5, that is, the negative liquid crystal molecule and front glass substrate 3 and rear glass substrate 5 in liquid crystal molecule are at 0.5
Degree to 2 degree or -0.5 degree to -2 degree angles arrange.Positive liquid crystal molecules take in the liquid crystal of front glass substrate 3 and rear glass substrate 5
In the projecting direction of 5 plane of front glass substrate 3 and rear glass substrate and the light transmission shaft of preceding polaroid 2 at 45 degree of angles under to layer effect
Or -45 degree angle arrangement；And since positive liquid crystal molecules are all approximately parallel to front glass substrate 3 and the arrangement of rear glass substrate 5, so that
When the transparency conducting layer of front glass substrate 3 and rear glass substrate 5 is biased V, the change in orientation of positive liquid crystal molecules is equal
Even, avoid the occurrence of display defect problem.And in this mode, the optical path difference range of liquid crystal layer 4 be 175nm≤nd≤
375nm or 400nm≤nd≤600nm.In the present embodiment, the central value of the optical path difference of liquid crystal layer 4 be taken as nd=k λ/
2, wherein k=1 or k=2, λ=550nm.
In the mode of horizontal alignment, the orientation of the positive liquid crystal molecules in the liquid crystal molecule of liquid crystal layer 4 is with increased
Bias and the principle that changes is same as Example 1；Likewise, the horizontal alignment mode of the present embodiment is according to preceding polaroid 2 with after
The light transmission shaft angulation difference of reflecting polarized wafer 6 is divided into normal white mode and normally black mode.
Under normal white mode, the light transmission shaft angulation of preceding polaroid 2 and back reflection formula polaroid 6 is 0 degree, back reflection
The configuration of formula polaroid 6 is the polarised light reflection made perpendicular to the light transmission shaft of preceding polaroid 2, the light transmission of polaroid 2 before being parallel to
The polarized light transmission of axis, that is, the configuration of back reflection formula polaroid 6 is to make to be parallel to the polarised light reflection of xoy plane, perpendicular to
The polarized light transmission of xoy plane；It is as shown in Figure 7: when be added in front glass substrate 3 and after glass substrate 5 transparency conducting layer on
When bias V=0, the optical path difference of liquid crystal layer 4 is maximum, and the reflectivity of rearview mirror is maximum.
It is as shown in Figure 8: when be added in front glass substrate 3 and after glass substrate 5 transparency conducting layer on bias V be gradually increased
To V0, the optical path difference of liquid crystal layer 4 reduces with the increase of bias, and the reflectivity of rearview mirror reduces with the increase of bias.
Under normally black mode, the mode and normal white mode are on the contrary, in this mode, preceding polaroid 2 and back reflection formula polarisation
The light transmission shaft angulation of piece 6 is 90 degree or -90 degree；The configuration of back reflection formula polaroid 6 makes polaroid 2 before being parallel to
The polarised light of light transmission shaft reflects, perpendicular to the polarized light transmission of the light transmission shaft of preceding polaroid 2, that is, back reflection formula polaroid 6 is matched
Setting is the polarised light reflection made perpendicular to xoy plane, is parallel to the polarized light transmission of xoy plane；As shown in Fig. 9-10: at this
Under mode, the optical path difference of liquid crystal layer 4 reduces with the increase of bias, and the reflectivity of rearview mirror increases with the increase of bias,
When bias is zero, the reflectivity of rearview mirror is minimum.
Embodiment 3
The present embodiment is difference from example 1 is that pattern of rows and columns of the liquid crystal molecule of liquid crystal layer 4 is different.
Pattern of rows and columns of the liquid crystal molecule of liquid crystal layer 4 includes conventional twisted-oriented mode, the routine in the present embodiment
Twisted-oriented mode refers to that the positive liquid crystal molecules in original state, the liquid crystal molecule of liquid crystal layer 4 are in 3 He of front glass substrate
Afterwards at 90 degree or -90 degree aligned twisteds between glass substrate 5.Positive liquid crystal molecules 3 plane of front glass substrate projection with before
Polaroid 2 is at 0 degree of angle or an angle of 90 degrees or-an angle of 90 degrees.And in this mode, the optical path difference range of liquid crystal layer 4 is 375nm≤nd
≤ 575nm or 900nm≤nd≤1200nm.In the present embodiment, the central value of the optical path difference of liquid crystal layer 4 be taken as nd=
The λ of 0.866 λ or nd=1.936, that is, the central value of the optical path difference of liquid crystal layer 4 takes the first minimum of conventional twisted-oriented mode
Or second minimum, wherein λ=550nm.
When conventional twisted-oriented mode, the orientation of the positive liquid crystal molecules in the liquid crystal molecule of liquid crystal layer 4 is with increase
Bias and the principle that changes is same as Example 1；Likewise, the conventional twisted-oriented alignment mode of the present embodiment is according to preceding inclined
The light transmission shaft angulation difference of mating plate 2 and back reflection formula polaroid 6 is divided into normal white mode and normally black mode.
Under normal white mode, the light transmission shaft angulation of preceding polaroid 2 and back reflection formula polaroid 6 is 0；Back reflection formula
The configuration of polaroid 6 is the polarised light reflection made perpendicular to the light transmission shaft of preceding polaroid 2, the light transmission shaft of polaroid 2 before being parallel to
Polarized light transmission, that is, the configuration of back reflection formula polaroid 6 is to make to be parallel to the polarised light reflection of xoy plane, perpendicular to xoy
The polarized light transmission of plane；It is as shown in figure 11: when be added in front glass substrate 3 and after glass substrate 5 transparency conducting layer on it is inclined
When pressing V=0, liquid crystal layer optical path difference is 0, and the reflectivity of rearview mirror is maximum.
It is as shown in figure 12: when be added in front glass substrate 3 and after glass substrate 5 transparency conducting layer on bias V gradually increase
Greatly to V0, the optical path difference of liquid crystal layer 4 reduces with the increase of bias, and the reflectivity of rearview mirror reduces with the increase of bias.
Under normally black mode, the mode and normal white mode are on the contrary, in this mode, preceding polaroid 2 and back reflection formula polarisation
The light transmission shaft angulation of piece 6 is 90 degree or -90 degree；The configuration of back reflection formula polaroid 6 makes polaroid 2 before being parallel to
The polarised light of light transmission shaft reflects, perpendicular to the polarized light transmission of the light transmission shaft of preceding polaroid 2, that is, back reflection formula polaroid 6 is matched
Setting is the polarised light reflection made perpendicular to xoy plane, is parallel to the polarized light transmission of xoy plane, as illustrated in figs. 13-14: at this
Under mode, the optical path difference of liquid crystal layer 4 reduces with the increase of bias, the reflectivity of rearview mirror subtract with the increase of bias greatly,
When bias is zero, the reflectivity of rearview mirror is minimum.
The rearview mirror of the utility model by using liquid crystal layer 4 LCD technology principle so that the reflection of rearview mirror
Color keep monochrome；Pattern of rows and columns by back reflection formula polaroid 6 respectively with the liquid crystal molecule of six kinds of liquid crystal layers 4 is matched simultaneously
Design is closed, the operating mode of six kinds of rearview mirrors is realized, so that the application range of rearview mirror is wider.
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (10)
1. a kind of automatic anti-dazzle automotive electronics rearview mirror, including shell, be arranged in housing upper face front glass substrate (3) and after
Glass substrate (5) is equipped with liquid crystal layer (4) between the front glass substrate (3) and rear glass substrate (5), which is characterized in that also
Including preceding polaroid (2) and back reflection formula polaroid (6), the preceding polaroid (2) and back reflection formula polaroid (6) are respectively provided at
The outside of the front glass substrate (3) and rear glass substrate (5) is equipped with glass cover-plate in the outside of the preceding polaroid (2)
(1)；Liquid crystal aligning layer, the liquid crystal layer are equipped on the opposite flank of the front glass substrate (3) and rear glass substrate (5)
(4) between front glass substrate (3) and the liquid crystal aligning layer of rear glass substrate (5).
2. automatic anti-dazzle automotive electronics rearview mirror according to claim 1, which is characterized in that the preceding polaroid (2)
Including the linear polarizer plate being in neutrality using high-permeability and color；It is equipped with and inhales in the outside of the back reflection formula polaroid (6)
Photosphere (7).
3. automatic anti-dazzle automotive electronics rearview mirror according to claim 1, which is characterized in that the front glass substrate
It (3) include the front glass with transparency conducting layer, the rear glass substrate (5) includes the rear glass with transparency conducting layer.
4. automatic anti-dazzle automotive electronics rearview mirror according to claim 1, which is characterized in that the glass cover-plate (1)
With the preceding polaroid (2), the preceding polaroid (2) and the front glass substrate (3) and the back reflection formula polaroid (6)
Pass through optics glue laminating with the rear glass substrate (5).
5. automatic anti-dazzle automotive electronics rearview mirror according to claim 1, which is characterized in that the liquid crystal layer (4)
Pattern of rows and columns of liquid crystal molecule includes vertical alignment mode, the negative liquid crystal molecule in the liquid crystal molecule of the vertical alignment mode
It is arranged with the front glass substrate (3) and rear glass substrate (5) at 88 degree to 89.5 degree or -88 degree to -89.5 degree angles, it is described
Negative liquid crystal molecule is under the effect of the liquid crystal aligning layer of the front glass substrate (3) and rear glass substrate (5) in the front glass
Substrate (3) and the projecting direction of rear glass substrate (5) plane and the light transmission shaft of the preceding polaroid (2) are spent at 45 degree of angles or -45
Angle, the optical path difference range of the liquid crystal layer (4) of the vertical alignment mode be 175nm≤nd≤375nm or 400nm≤nd≤
600nm。
6. automatic anti-dazzle automotive electronics rearview mirror according to claim 5, which is characterized in that the vertical alignment mode
It is divided into normal white mode according to the light transmission shaft angulation difference of the preceding polaroid (2) and the back reflection formula polaroid (6)
And normally black mode；
Under normal white mode, the light transmission shaft angulation of the preceding polaroid (2) and the back reflection formula polaroid (6) is 90
Degree or -90 degree；The configuration of the back reflection formula polaroid (6) is to keep the polarised light for being parallel to the light transmission shaft of preceding polaroid (2) anti-
It penetrates, perpendicular to the polarized light transmission of the light transmission shaft of preceding polaroid (2)；The optical path difference of the liquid crystal layer (4) with the increase of bias and
It reduces, the reflectivity of the rearview mirror reduces with the increase of bias；
Under normally black mode, the light transmission shaft angulation of the preceding polaroid (2) and the back reflection formula polaroid (6) is 0
Degree；The configuration of the back reflection formula polaroid (6) is the polarized light transmission for making to be parallel to the light transmission shaft of preceding polaroid (2), vertically
In the polarised light reflection of the light transmission shaft of preceding polaroid (2)；The optical path difference of the liquid crystal layer (4) is reduced with the increase of bias, institute
The reflectivity for stating rearview mirror increases with the increase of bias.
7. automatic anti-dazzle automotive electronics rearview mirror according to claim 1, which is characterized in that the liquid crystal layer (4)
Pattern of rows and columns of liquid crystal molecule includes horizontal alignment mode, the positive liquid crystal molecules in the liquid crystal molecule of the horizontal alignment mode
It is arranged with the front glass substrate (3) and rear glass substrate (5) at 0.5 degree to 2 degree or -0.5 degree to -2 degree angles, the positivity
Liquid crystal molecule is under the effect of the liquid crystal aligning layer of the front glass substrate (3) and rear glass substrate (5) in the front glass substrate
(3) and the light transmission shaft of the projecting direction of rear glass substrate (5) plane and the preceding polaroid (2) at 45 degree angles or -45 spends angles, institute
State the liquid crystal layer (4) of horizontal alignment mode optical path difference range be 175nm≤nd≤375nm or 400nm≤nd≤
600nm。
8. automatic anti-dazzle automotive electronics rearview mirror according to claim 7, which is characterized in that the horizontal alignment mode
It is divided into normal white mode according to the light transmission shaft angulation difference of the preceding polaroid (2) and the back reflection formula polaroid (6)
And normally black mode；
Under normal white mode, the light transmission shaft angulation of the preceding polaroid (2) and the back reflection formula polaroid (6) is 0；
The configuration of the back reflection formula polaroid (6) is the polarised light reflection made perpendicular to the light transmission shaft of preceding polaroid (2), before being parallel to
The polarized light transmission of the light transmission shaft of polaroid (2)；The optical path difference of the liquid crystal layer (4) is reduced with the increase of bias, after described
The reflectivity of visor reduces with the increase of bias；
Under normally black mode, the light transmission shaft angulation of the preceding polaroid (2) and the back reflection formula polaroid (6) is 90
Degree or -90 degree；The configuration of the back reflection formula polaroid (6) is to keep the polarised light for being parallel to the light transmission shaft of preceding polaroid (2) anti-
It penetrates, perpendicular to the polarized light transmission of the light transmission shaft of preceding polaroid (2)；The optical path difference of the liquid crystal layer (4) with the increase of bias and
It reduces, the reflectivity of the rearview mirror increases with the increase of bias.
9. automatic anti-dazzle automotive electronics rearview mirror according to claim 1, which is characterized in that the liquid crystal layer (4)
Pattern of rows and columns of liquid crystal molecule includes conventional twisted-oriented mode, the positivity in the liquid crystal molecule of the routine twisted-oriented mode
Liquid crystal molecule is from front glass substrate (3) to rear glass substrate (5) at 90 degree or -90 degree aligned twisteds, the positive liquid crystal molecules
In the projection of front glass substrate (3) plane and the light transmission shaft of the preceding polaroid (2) at 0 degree of angle or an angle of 90 degrees or-an angle of 90 degrees, institute
The optical path difference range for stating the liquid crystal layer (4) of conventional twisted-oriented mode is taken as 375nm≤nd≤575nm or 900nm≤nd
≤1200nm。
10. automatic anti-dazzle automotive electronics rearview mirror according to claim 9, which is characterized in that the twisted-oriented mould
Formula is divided into Chang Baimo according to the light transmission shaft angulation difference of the preceding polaroid (2) and the back reflection formula polaroid (6)
Formula and normally black mode；
Under normal white mode, the light transmission shaft angulation of the preceding polaroid (2) and the back reflection formula polaroid (6) is 0；
The configuration of the back reflection formula polaroid (6) is the polarised light reflection made perpendicular to the light transmission shaft of preceding polaroid (2), before being parallel to
The polarized light transmission of the light transmission shaft of polaroid (2)；The optical path difference of the liquid crystal layer (4) is reduced with the increase of bias, after described
The reflectivity of visor reduces with the increase of bias；
Under normally black mode, the preceding polaroid (2) and back reflection formula polaroid (6) the light transmission shaft angulation are 90 degree
Or -90 degree；The configuration of the back reflection formula polaroid (6) is to make to be parallel to the polarised light reflection of the light transmission shaft of preceding polaroid (2),
Perpendicular to the polarized light transmission of the light transmission shaft of preceding polaroid (2)；The optical path difference of the liquid crystal layer (4) subtracts with the increase of bias
Few, the reflectivity of the rearview mirror increases with the increase of bias.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820885394.7U CN208264117U (en) | 2018-06-08 | 2018-06-08 | A kind of automatic anti-dazzle automotive electronics rearview mirror |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820885394.7U CN208264117U (en) | 2018-06-08 | 2018-06-08 | A kind of automatic anti-dazzle automotive electronics rearview mirror |
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| Publication Number | Publication Date |
|---|---|
| CN208264117U true CN208264117U (en) | 2018-12-21 |
Family
ID=64689859
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820885394.7U Withdrawn - After Issue CN208264117U (en) | 2018-06-08 | 2018-06-08 | A kind of automatic anti-dazzle automotive electronics rearview mirror |
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| CN (1) | CN208264117U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109278649A (en) * | 2018-06-08 | 2019-01-29 | 惠州市德赛西威汽车电子股份有限公司 | A kind of automatic anti-dazzle automotive electronics rearview mirror |
| WO2020140692A1 (en) * | 2019-01-02 | 2020-07-09 | Boe Technology Group Co., Ltd. | Anti-glare apparatus and mirror |
-
2018
- 2018-06-08 CN CN201820885394.7U patent/CN208264117U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109278649A (en) * | 2018-06-08 | 2019-01-29 | 惠州市德赛西威汽车电子股份有限公司 | A kind of automatic anti-dazzle automotive electronics rearview mirror |
| WO2019232915A1 (en) * | 2018-06-08 | 2019-12-12 | 惠州市德赛西威汽车电子股份有限公司 | Automatic anti-glare automotive electronic rearview mirror |
| CN109278649B (en) * | 2018-06-08 | 2020-08-25 | 惠州市德赛西威汽车电子股份有限公司 | Automatic anti-dazzle automobile electronic rearview mirror |
| WO2020140692A1 (en) * | 2019-01-02 | 2020-07-09 | Boe Technology Group Co., Ltd. | Anti-glare apparatus and mirror |
| US11884213B2 (en) | 2019-01-02 | 2024-01-30 | Boe Technology Group Co., Ltd. | Anti-glare apparatus and mirror having lens assembly with controlled optical axis direction |
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