CN108303816A - A kind of rearview mirror with display function - Google Patents
A kind of rearview mirror with display function Download PDFInfo
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- CN108303816A CN108303816A CN201710021404.2A CN201710021404A CN108303816A CN 108303816 A CN108303816 A CN 108303816A CN 201710021404 A CN201710021404 A CN 201710021404A CN 108303816 A CN108303816 A CN 108303816A
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- layer
- rearview mirror
- reflection
- display
- light
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- 238000009738 saturating Methods 0.000 claims description 5
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- 238000003426 chemical strengthening reaction Methods 0.000 claims description 3
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
- B60R2001/1215—Mirror assemblies combined with other articles, e.g. clocks with information displays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
- B60R2001/1253—Mirror assemblies combined with other articles, e.g. clocks with cameras, video cameras or video screens
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
- G02F1/133536—Reflective polarizers
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Liquid Crystal (AREA)
- Polarising Elements (AREA)
Abstract
The present invention relates to a kind of rearview mirror with display function, the rearview mirror includes：Transparent cover plate, the transparent cover plate substantially covers the full frame of the rearview mirror, reflection-type polarizing layer, the reflection-type polarizing layer is consistently arranged with the transparent cover plate substantially size under the transparent cover plate, the reflection-type polarizing layer is at least partly configured as substantially semi-transparent semi-reflecting optical region, the substantially semi-transparent semi-reflecting optical region allows the light transmission of a polarization direction to pass through, light of the reflection perpendicular to the polarization direction simultaneously, and display layer, the display layer limits at least one display area, at least one display area is arranged under the substantially semi-transparent semi-reflecting optical region.The rearview mirror of the present invention may be implemented to improve the utilization rate for showing light while mirror-reflection by reflecting type polarizing layer.
Description
Technical field
The present invention relates to a kind of rearview mirror, more particularly to a kind of rearview mirror with display function.
Background technology
In automobile rearview mirror field, in order to preferably provide running information and road conditions, the rearview mirror with display function is
Through growing up.The rearview mirror with display function is broadly divided into two kinds in existing automobile, and one is display screens to occupy backsight
The area of mirror minute surface, but this results in the areas of mirror surface to become smaller, and influences the range of observation of driver；Another kind is
The reflectivity for reducing rear-vision mirror face, improves its perspective rate, and some light for making to be arranged the display screen inside minute surface appears, from
And achieve the effect that mirror-reflection and screen display and deposit, but this structure can reduce the partial optical performance of display screen, such as
Brightness, contrast cause energy loss serious.Also, the light that the backlight of traditional display is sent out is non-polarizability,
The utilization of final luminous intensity is often less than the 5% of original luminous intensity.
Accordingly, it is desirable to provide a kind of utilization rate with reflection and display function while the backlight of display screen is higher
Rearview mirror.
Invention content
To solve the above problems, the present invention proposes that a kind of rearview mirror with display function, the rearview mirror include：It is transparent
Cover board, the transparent cover plate substantially cover the full frame of the rearview mirror, reflection-type polarizing layer, the reflection-type polarizing layer by with
The transparent cover plate substantially size is consistently arranged under the transparent cover plate, and the reflection-type polarizing layer is at least partly
It is configured as substantially semi-transparent semi-reflecting optical region, the substantially semi-transparent semi-reflecting optical region allows a polarization direction
Light transmission pass through, while reflecting the light and display layer perpendicular to the polarization direction, the display layer limits at least one aobvious
Show that region, at least one display area are arranged under the substantially semi-transparent semi-reflecting optical region.
In preferred embodiments, the whole of the reflection-type polarizing layer can be configured as described substantially semi-transparent semi-reflecting
Optical region.At least one display area is arranged under a part for the reflection-type polarizing layer.
In preferred embodiments, the display layer can by with the transparent cover plate and the reflection-type polarizing layer size
Consistently it is configured to full screen display layer.In further preferred embodiment, the rearview mirror may further include touch layer,
The touch layer is arranged between the transparent cover plate and the reflection-type polarizing layer or to be arranged on the reflection-type inclined
Between photosphere and the display layer.
In preferred embodiments, a part for the reflection-type polarizing layer can be configured as described substantially semi-transparent half
Anti- optical region.The region except the substantially semi-transparent semi-reflecting optical region of the reflection-type polarizing layer is configured
For reflected coat layer region.In further preferred embodiment, the reflectivity of the reflected coat layer and described substantially semi-transparent half
The reflectivity of anti-optical region is substantially consistent.
In preferred embodiments, at least one display area by with the substantially semi-transparent semi-reflecting optical region
It is arranged under the substantially semi-transparent semi-reflecting optical region to size and position consistency.
In preferred embodiments, the rearview mirror may further include absorbed layer, and the absorbed layer is arranged on institute
State the region under reflection-type polarizing layer and except at least one display area.
In preferred embodiments, the rearview mirror may further include touch layer, and the touch layer is described transparent
The touch area at least one display area size and position consistency is limited between cover board and the reflection-type polarizing layer.
The touch layer limits transparent medium except the touch area between the transparent cover plate and the reflection-type polarizing layer
Region.In an alternative embodiment, the rearview mirror may further include touch layer, and the touch layer is in the reflection
It is limited between type polarizing layer and at least one display area and at least one display area size and position consistency
Touch area.
In preferred embodiments, the display layer may further include polarized backlight source, wherein the polarized backlight
The polarization direction for the polarised light that source is sent out is substantially consistent close to the transmission polarization direction of backlight side polarizing film with display.
In preferred embodiments, the polarized backlight source includes：The light in the light guide plate side is arranged in light guide plate
Source is arranged the quarter wave plate and speculum with the light source opposite side in the light guide plate, is arranged in the upper of the light guide plate
Birefringent film on surface, wherein the refractive index close of the ordinary refraction index of the birefringent film and the light guide plate, and
And the extraordinary ray refractive index of the birefringent film is more than the refractive index of the light guide plate, and setting in the birefringent film and
Micro-relief structure between the upper surface.
In preferred embodiments, the polarized backlight source includes：The light in the light guide plate side is arranged in light guide plate
Source, and the quarter wave plate and speculum with the light source opposite side in the light guide plate are set, wherein the light guide plate
Include the liquid crystal layer for polarization scattering, the liquid crystal aligning in the liquid crystal layer is limited at vertical with the surface of light guide plate put down
In face.
In preferred embodiments, the transparent cover plate may include the transparent glass by chemical strengthening or physical strengthening
Glass, or rigidity or polymer material flexible, the light transmittance of the transparent cover plate can reach 85% or more.
In preferred embodiments, the rearview mirror may further include the integration directly formed on transparent cover plate
OGS touch screen.
In preferred embodiments, the display layer may include at least one display screen, and the display screen includes TFT formulas
Display screen or LED formula display screens.
For the present invention using a kind of reflecting type polarizing layer as specular material, this polarizing layer can be with one polarization of reflection environment light
The light in direction, the light of transmissive Homeotropic polarization direction, to achieve the effect that mirror-reflection.Additionally, due to its transmission polarization direction with
The polarization direction of the emergent light of display screen is consistent, and the approximation 100% so as to reach emergent light penetrates, and light loss is reduced, complete
The utilization rate that the backlight of display screen is improved while shielding mirror-reflection, further decreases the power consumption of backlight, so as into one
Step reduces the brightness of backlight, reduces the heat source output of rearview mirror, reduces the temperature of inside rear-view mirrors.
Description of the drawings
The present invention may be better understood by referring to illustrating for embodiment of the present invention, in the accompanying drawings：
Fig. 1 is the minute surface main part schematic diagram of rearview mirror according to an embodiment of the invention.
Fig. 2 is principle of reflection schematic diagram of the reflection-type polarizing layer according to an embodiment of the invention to ambient light.
Fig. 3 is the minute surface main part schematic diagram of rearview mirror according to an embodiment of the invention.
Fig. 4 is the minute surface main part schematic diagram of rearview mirror according to an embodiment of the invention.
Fig. 5 is the minute surface main part schematic diagram of rearview mirror according to an embodiment of the invention.
Fig. 6 is transmission principle schematic diagram of the reflection-type polarizing layer according to an embodiment of the invention to display light.
Fig. 7 is the display screen distribution schematic diagram of rearview mirror according to an embodiment of the invention.
Fig. 8 is the polarized backlight source schematic diagram of rearview mirror according to an embodiment of the invention.
Fig. 9 is the polarized backlight source schematic diagram of rearview mirror according to an embodiment of the invention.
Figure 10 is the additional function block diagram of rearview mirror according to an embodiment of the invention.
Specific implementation mode
In the following description, it in order to reach purpose of explanation recognized there are one comprehensive the present invention, illustrates
A large amount of detail, however, it will be apparent that those skilled in the art, it without these details can also be real
The existing present invention.In other examples, well known construction and device is shown in box chart.In this respect, that is lifted is illustrative
Example embodiment only for explanation, the present invention is not caused to limit.Therefore, protection scope of the present invention is not by above-mentioned
Specific embodiment is limited, and is only subject to the range of appended claims.
With reference first to Fig. 1, there is shown with a kind of rearview mirrors according to the ... of the embodiment of the present invention with display function, after described
Visor may include minute surface main part 100, shell and holder (not shown).Minute surface main part 100 may include transparency cover
Plate 101, reflection-type polarizing layer 102 and display layer 104, details are as follows.
Rearview mirror according to the present invention, transparent cover plate 101 can substantially cover the full frame of rearview mirror.Transparent cover plate
101 may include the transparent glass by chemical strengthening or physical strengthening, or rigidity or polymer material flexible, this hair
It is bright without being limited thereto, the satisfactory other materials of light transmittance can also be used.Preferably, the light transmittance of transparent cover plate 101 can be with
Reach 85%, 90%, 95% or more.Preferably, the thickness of transparent cover plate is between 0.5 millimeter to 3 millimeters.
Reflection-type polarizing layer 102 can by with the substantially size of transparent cover plate 101 be consistently arranged transparent cover plate 101 it
Under.Reflection-type polarizing layer 102 at least partly can be configured as substantially semi-transparent semi-reflecting optical region.With reference to Fig. 2, show
Go out principle of reflection of the substantially semi-transparent semi-reflecting optical region to ambient light.As shown, substantially semi-transparent semi-reflecting light
School district domain allows the light transmission of a polarization direction to pass through, while reflecting the light perpendicular to the polarization direction.Thus, work as ring
When border light is incident in minute surface main part 100, the substantially semi-transparent semi-reflecting optical region of reflection-type polarizing layer 102 can be saturating
The light perpendicular to the polarization direction in the light of a polarization direction in ambient light and reflection environment light is penetrated, it is anti-to reach minute surface
The effect penetrated.DBEF films that reflection-type polarizing layer common are U.S. 3M productions, being made of multilayer birefringence high molecular material,
Or metal twine (wiregrid) reflection-type polarizing layer of Moxtek companies of U.S. production.
Display layer 104 can limit at least one display area, and at least one display area is arranged on substantially
Under semi-transparent semi-reflecting optical region, the display function of rearview mirror is provided.As shown in fig. 6, according to substantially semi-transparent semi-reflecting light
The optical characteristics in school district domain, the display light being emitted from display layer 104 meet two conditions：When polarised light, second is that it is polarized
Direction is consistent with the transmission polarization direction of substantially semi-transparent semi-reflecting optical region of reflection-type polarizing layer 102.In such feelings
Under condition, the display light of approximation 100% can penetrate reflection-type polarizing layer 102, to reduce light loss, improve the light profit of display
With rate.
As shown in fig. 7, display layer 104 may include at least one display screen 120, type can be TFT formula display screens,
It can also be LED formula display screens, selected according to actual conditions.Size, quantity and the position of display screen 120 can be according to realities
Border needs to be adjusted.When the quantity of display screen 120 is multiple, multiple display screens 120 can be laid on minute surface.Work as backsight
When mirror display function is opened, it can select only to light one of display screen 120, can also select to light all display screens simultaneously
120.When only lighting one of display screen, make the background colour of remaining display screen and the reflecting background color one of minute surface main part
It causes, to increase reflector space.
In preferred embodiments, as shown in Fig. 1,3,5, the whole of reflection-type polarizing layer 102 is configured as substantially half
Saturating half anti-optical region, and at least one display area of display layer 104 is arranged on one of reflection-type polarizing layer 102
/ under.In such embodiments, display layer 104 can further by with transparent cover plate 101 and reflection-type polarizing layer 102
Size is consistently configured to full screen display layer.
In other embodiments, as shown in figure 4, a part for reflection-type polarizing layer 102 be configured as it is substantially semi-transparent
Half anti-optical region.The region except substantially semi-transparent semi-reflecting optical region of reflection-type polarizing layer 102 is configured as
106 region of reflected coat layer.The reflectivity substantially one of the reflectivity of reflected coat layer 106 and substantially semi-transparent semi-reflecting optical region
It causes, to avoid the vision difference caused by the difference of reflectivity from causing vision to interfere driver.Display layer 104 is at least
One display area is arranged with substantially semi-transparent semi-reflecting optical zone sizes and position consistency substantially semi-transparent semi-reflecting
Optical region under.
Rearview mirror according to the ... of the embodiment of the present invention may further include touch layer 103, and touch layer 103 can be in transparency cover
The touch area at least one display area size and position consistency is limited between plate 101 and reflection-type polarizing layer 102, saturating
110 region of transparent medium is limited except the touch area between bright cover board 101 and reflection-type polarizing layer 102.Transparent medium
110 can be optical cement, glass or polymer, and but not limited to this.In an alternative embodiment, touch layer 103 can be with
It is limited between reflection-type polarizing layer 102 and at least one display area and at least one display area size and position consistency
Touch area.Those skilled in the art is it should be appreciated that the setting of touch layer 103 is readily applicable to have full screen display
The rearview mirror of layer.That is, in the rearview mirror with full screen display layer, touch layer 103 can be arranged on transparent cover plate
Between 101 and reflection-type polarizing layer 102 or it is arranged between reflection-type polarizing layer 102 and display layer 104.Preferably, it touches
It is the capacitance touch layer technology based on one layer of glass substrate to touch layer technology, and the thickness of glass substrate is micro- at 50 microns to 500
Between rice.Preferably, transparent dielectric layer is made of the preferable silica gel of opposite uvioresistant, refraction coefficient and transparent cover plate, is shown
Show device outer layer, touch layer is close, and thickness is between 1 micron to 100 microns.
Touch layer 103 can be any kind of touch screen, and position, quantity and size can be with settings in its lower section
Display layer 104 is corresponding；Touch layer 103 can not also be used according to the needs of part display screen.Further, such as Fig. 5 institutes
Show, OGS touch screen also can be used in touch layer 103, using integrated touch technology, is directly formed and is touched on transparent cover plate 101
Sensor 114, thus it is cost-effective, further mitigate weight, increases the light transmittance of minute surface main part.Preferably, touch screen
Sensor-based system is combined with display, is formed and is touched and show that (on-cell or in-cell are touched and shown integrated system
System).
Rearview mirror according to the ... of the embodiment of the present invention can further include absorbed layer 105, and absorbed layer 105 can be set
Region under reflection-type polarizing layer 102 and except at least one display area penetrates reflection-type polarisation for absorbing
The ambient light and other extra light of layer 102.Thereby, when ambient lighting is mapped on rearview mirror, the ambient light quilt of half is had
Driver is reflected into the eyes, to play the role of mirror-reflection；Remaining ambient light is entered by reflection-type polarizing layer 102
The inside of minute surface main body, final absorbed layer 105 absorb.Preferably, absorbed layer can be black glue, black belt or black
Chromoresin.
In one embodiment of the invention, transparent cover plate 101, reflection-type polarizing layer 102, touch layer 103, display layer
It is closely connected using OCA optical cements or PSA pressure sensitive adhesives between each layer such as 104 and absorbed layer 105, to form integrated knot
Structure saves inside rear-view mirrors space.Although herein for convenience, the rearview mirror is described according to multilayered structure,
But it will be appreciated by those skilled in the art that any two or more layers in above layers, even all can integration
Ground is multi-functional to be made by plated film, coating, infiltration, doping, injection, photoetching/graphical, fusion, compacting, molding etc. technique
Single layer structure.
Rearview mirror according to the present invention, display layer 104 may further include polarized backlight source, wherein polarized backlight source
The polarization direction of the polarised light sent out is substantially consistent close to the transmission polarization direction of backlight side polarizing film with display.Such as
Known to a person skilled in the art, the basic structure of liquid crystal display (such as LED, TFT) is backlight, lower polarizing film, liquid crystal
Layer, colored filter, upper polarizer.In the present invention, the transmission polarization direction of upper polarizer (far from backlight) is to show
The polarization direction of device emergent ray, it is consistent with the transmission polarization direction of reflection-type polarizing layer, and different lower polarization
The transmission polarization direction of piece (close to backlight side) is consistent with the polarization direction in polarized backlight source.
Polarized backlight source schematic diagram used in two kinds of rearview mirrors according to the ... of the embodiment of the present invention is shown respectively in Fig. 8 and Fig. 9.
It is shown in Fig. 8 go out exemplary polarized backlight source in, polarized backlight source includes light guide plate 133, is arranged in 133 side of light guide plate
The quarter wave plate 135 and speculum 136 with 134 opposite side of light source in light guide plate 133 is arranged in light source 134, is arranged in leaded light
Birefringent film 131 on the upper surface of plate 133, and be arranged between birefringent film 131 and the upper surface miniature floating
Carve structure 132.Wherein, the refractive index close of ordinary light (polarization directions p-) refractive index and light guide plate 133 of birefringent film 131,
And extraordinary ray (polarization directions s-) refractive index is more than the refractive index of light guide plate 133.So, the nature that light source 134 is sent out
Light, when the light therein along the polarization directions s- is incident on prism (triangle) interface of light guide plate 133 and birefringent film 131, portion
Light splitter can change the direction of propagation, be projected from birefringent film 131 with the angle less than 133 critical point of light guide plate；And it is inclined along p-
Shake direction light will insusceptibly be mapped to the interface of birefringent film 131 and air after, be totally reflected back to light guide plate 133, finally
Polarization direction is reflected and changes by quarter wave plate 135 and speculum 136, to be emitted again after cycle.
It is shown in Fig. 9 go out exemplary polarized backlight source in, polarized backlight source includes light guide plate 133, be arranged in light guide plate
The light source 134 of 133 sides, and the quarter wave plate 135 and speculum with 134 opposite side of light source in light guide plate 133 are set
136.Light guide plate 133 includes the liquid crystal layer 137 for polarization scattering, and the liquid crystal aligning in liquid crystal layer 137 is limited in and leads substantially
In the vertical plane in 133 surface of tabula rasa so that liquid crystal layer 137 can scatter light of its polarization direction in this plane.Such one
Come, the natural light that light source 134 is sent out, the light along the polarization directions p- is scattered by liquid crystal layer 137, critical to be less than light guide plate 133
The angle of point is projected from 133 surface of light guide plate；And it will be passed in light guide plate 133 in a manner of total reflection along the light of the polarization directions s-
It broadcasts, finally reflects and change polarization direction by quarter wave plate 135 and speculum 136, to be dissipated again by liquid crystal layer 137 after cycle
Project light guide plate 133.
Polarized backlight source according to the ... of the embodiment of the present invention, polarization direction is with display close to backlight side polarizing film
Transmission polarization direction is substantially consistent, to ensure backlight light can approximation 100% entrances display interior, improve carry on the back
The utilization rate of light source.Meanwhile for the traditional monitor using unpolarized light source, in the case of identical backlight,
The brightness of its display can improve 50% or more, improve the clarity of display image in bright light environments.Similarly, in phase
Under conditions of outgoing brightness, the brightness in polarized backlight source according to the ... of the embodiment of the present invention can reduce by 30% or more, so as to
To save energy, the temperature of inside rear-view mirrors is reduced.
In a further embodiment, the minute surface main part 100 of rearview mirror can be embedded on shell front.Backsight
Mirror can further include the circuit control panel 140 inlayed inside housings, as shown in Figure 10, all for controlling rearview mirror
Function.Preferably, in embodiment illustrated in fig. 10, rear can also be further provided with microphone 141, raise
Sound device 142, bluetooth equipment 143, data connection mouth 144, network connecting module 145 and camera 146, to realize vehicle-mounted lead
The intelligent functions such as boat, amusement, driving recording, bluetooth conversation, data transmission, vehicle-mounted WiFi or 4G network connections.Holder can be straight
Rearview mirror is connect in succession, makes it as vehicle-mounted original manufacturing equipment；It can also be designed to special construction, rearview mirror is made to be sold as one
Part afterwards, and be directly installed on existing rear-view mirror system.
In conclusion the present invention, using a kind of reflecting type polarizing layer as specular material, this polarizing layer can be with reflection environment
The light of one polarization direction of light, the light of transmissive Homeotropic polarization direction, to achieve the effect that mirror-reflection.Additionally, due to its transmission
Polarization direction is consistent with the polarization direction of the emergent light of display screen, and 100% so as to reach emergent light penetrates, and reduces light loss
It loses, the utilization rate of the backlight of display screen is improved while full frame mirror-reflection, further decreases the power consumption of backlight, to
The brightness that backlight can be further decreased reduces the heat source output of rearview mirror, reduces the temperature of inside rear-view mirrors.
In addition, though for the purposes of brevity, this paper attached drawings are described in the form of substantially planar.But
It will be appreciated by those skilled in the art that the rearview mirror (and its all functional layers) of the present invention can also be including concave and convex
Curved surface, such as may include one in cylinder, spherical surface, ellipsoid, paraboloid etc. curved surface or combination.In addition, this field
Technical staff is it should be appreciated that the rearview mirror of the present invention can also be applied to by special with different reflection directions or curvature
Property the combination rearview mirror that combines of two or more different minute surfaces.
Although having been described above with the several exemplary implementation schemes of datail description, disclosed embodiment is only
Exemplary and those skilled in the art will readily appreciate that and not restrictive, a lot of other in an exemplary embodiment
Modification, change and/or replacement are possible, and the novel teachings and advantage of the disclosure are deviateed without essence.Therefore, all these
Modification, change and/or replacement are intended to be included in the scope of the present disclosure as defined by the appended claims.
Claims (19)
1. a kind of rearview mirror with display function, the rearview mirror include：
Transparent cover plate, the transparent cover plate substantially cover the full frame of the rearview mirror,
Reflection-type polarizing layer, the reflection-type polarizing layer are consistently arranged with the transparent cover plate substantially size described
Under bright cover board, the reflection-type polarizing layer is at least partly configured as substantially semi-transparent semi-reflecting optical region, the base
Semi-transparent semi-reflecting optical region allows the light transmission of a polarization direction to pass through in sheet, while reflecting perpendicular to the polarization direction
Light, and
Display layer, the display layer limit at least one display area, and at least one display area is arranged on the base
In sheet under semi-transparent semi-reflecting optical region.
2. rearview mirror as described in claim 1, wherein the whole of the reflection-type polarizing layer is configured as described substantially half
Saturating half anti-optical region.
3. rearview mirror as claimed in claim 2, wherein the display layer by with the transparent cover plate and the reflection-type polarisation
Layer size is consistently configured to full screen display layer.
4. rearview mirror as claimed in claim 3, the rearview mirror further comprises that touch layer, the touch layer are arranged on institute
It states between transparent cover plate and the reflection-type polarizing layer or is arranged between the reflection-type polarizing layer and the display layer.
5. rearview mirror as described in claim 1, wherein a part for the reflection-type polarizing layer be configured as it is described substantially
Semi-transparent semi-reflecting optical region.
6. rearview mirror as claimed in claim 5, wherein the reflection-type polarizing layer in the substantially semi-transparent semi-reflecting light
Region except the domain of school district is configured as reflected coat layer region.
7. rearview mirror as claimed in claim 6, wherein the reflectivity of the reflected coat layer with it is described substantially semi-transparent semi-reflecting
The reflectivity of optical region is substantially consistent.
8. rearview mirror as claimed in claim 2, wherein at least one display area is arranged on the reflection-type polarisation
Under a part for layer.
9. rearview mirror as claimed in claim 6, wherein at least one display area by with it is described substantially semi-transparent semi-reflecting
Optical zone sizes and position consistency be arranged under the substantially semi-transparent semi-reflecting optical region.
10. rearview mirror as claimed in claim 8 or 9, the rearview mirror further comprises that absorbed layer, the absorbed layer are set
Region under the reflection-type polarizing layer and except at least one display area.
11. rearview mirror as claimed in claim 8 or 9, the rearview mirror further comprises touch layer, and the touch layer is described
The touch at least one display area size and position consistency is limited between transparent cover plate and the reflection-type polarizing layer
Region.
12. rearview mirror as claimed in claim 11, wherein the touch layer is in the transparent cover plate and the reflection-type polarisation
Transparent medium region is limited except the touch area between layer.
13. rearview mirror as claimed in claim 8 or 9, the rearview mirror further comprises touch layer, and the touch layer is described
It is limited and at least one display area size and position one between reflection-type polarizing layer and at least one display area
The touch area of cause.
14. rearview mirror as described in claim 1, the display layer further comprises polarized backlight source, wherein the polarization is carried on the back
The polarization direction for the polarised light that light source is sent out is with display close to the transmission polarization direction substantially one of backlight side polarizing film
It causes.
15. rearview mirror as claimed in claim 14, the polarized backlight source include：
Light guide plate,
Light source in the light guide plate side is set,
The quarter wave plate and speculum with the light source opposite side in the light guide plate is set,
Birefringent film on the upper surface of the light guide plate is set, wherein the ordinary refraction index of the birefringent film and institute
The refractive index close of light guide plate is stated, and the extraordinary ray refractive index of the birefringent film is more than the refractive index of the light guide plate,
And
The micro-relief structure being arranged between the birefringent film and the upper surface.
16. rearview mirror as claimed in claim 14, the polarized backlight source include：
Light guide plate,
Light source in the light guide plate side is set, and
The quarter wave plate and speculum with the light source opposite side in the light guide plate is set,
Wherein, the light guide plate includes the liquid crystal layer for polarization scattering, the liquid crystal aligning in the liquid crystal layer be limited at
In the vertical plane in the surface of light guide plate.
17. rearview mirror as described in claim 1, wherein the transparent cover plate includes by the saturating of chemical strengthening or physical strengthening
Bright glass, or rigidity or polymer material flexible, the light transmittance of the transparent cover plate reach 85% or more.
18. rearview mirror as described in claim 1, the rearview mirror further comprises the one directly formed on transparent cover plate
Change OGS touch screen.
19. rearview mirror as described in claim 1, the display layer includes at least one display screen, and the display screen includes TFT
Formula display screen or LED formula display screens.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710021404.2A CN108303816A (en) | 2017-01-12 | 2017-01-12 | A kind of rearview mirror with display function |
| PCT/CN2018/072289 WO2018130182A1 (en) | 2017-01-12 | 2018-01-11 | A rearview mirror with a display function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710021404.2A CN108303816A (en) | 2017-01-12 | 2017-01-12 | A kind of rearview mirror with display function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108303816A true CN108303816A (en) | 2018-07-20 |
Family
ID=62839280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710021404.2A Pending CN108303816A (en) | 2017-01-12 | 2017-01-12 | A kind of rearview mirror with display function |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108303816A (en) |
| WO (1) | WO2018130182A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110789455A (en) * | 2018-08-01 | 2020-02-14 | 宝沃汽车（中国）有限公司 | Outside rear-view mirror and vehicle |
| CN110895375A (en) * | 2018-09-13 | 2020-03-20 | 江苏集萃智能液晶科技有限公司 | Flexible bistable light modulator |
| CN113539059A (en) * | 2020-04-20 | 2021-10-22 | 华为技术有限公司 | Display screen and electronic equipment |
| CN113815416A (en) * | 2021-08-17 | 2021-12-21 | 黑龙江天有为电子有限责任公司 | Motormeter dish and car |
| CN114168005A (en) * | 2020-08-20 | 2022-03-11 | 欣兴电子股份有限公司 | Rearview mirror with display function and manufacturing method thereof |
| CN114428420A (en) * | 2022-02-28 | 2022-05-03 | 北京京东方技术开发有限公司 | Rearview mirror, manufacturing method of rearview mirror and vehicle |
| CN116324605A (en) * | 2020-10-16 | 2023-06-23 | 松下知识产权经营株式会社 | Display device and mirror device |
| CN116841079A (en) * | 2023-07-18 | 2023-10-03 | 深圳市康冠科技股份有限公司 | Mirror surface display sun shield |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111839124B (en) * | 2019-04-26 | 2025-03-21 | 高创(苏州)电子有限公司 | A smart mirror |
| CN111095288B (en) * | 2019-12-02 | 2023-09-05 | 深圳市汇顶科技股份有限公司 | Under-screen optical fingerprint recognition device and system, liquid crystal display |
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| CN113815416A (en) * | 2021-08-17 | 2021-12-21 | 黑龙江天有为电子有限责任公司 | Motormeter dish and car |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2018130182A1 (en) | 2018-07-19 |
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Address after: 215500 No. 280 Huangpujiang Road, Changshu High-tech Industrial Development Zone, Suzhou City, Jiangsu Province Applicant after: Jiangsu getrain intelligent LCD Technology Co. Ltd. Address before: 215500 No. 128 Huangpujiang Road, Changshu High-tech Industrial Development Zone, Suzhou City, Jiangsu Province Applicant before: Jiangsu getrain intelligent LCD Technology Co. Ltd. |
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Application publication date: 20180720 |