CN106896580A - A kind of lighting fixture and car lamp device - Google Patents
A kind of lighting fixture and car lamp device Download PDFInfo
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- CN106896580A CN106896580A CN201710288339.XA CN201710288339A CN106896580A CN 106896580 A CN106896580 A CN 106896580A CN 201710288339 A CN201710288339 A CN 201710288339A CN 106896580 A CN106896580 A CN 106896580A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Liquid Crystal (AREA)
Abstract
The application provides a kind of lighting fixture and car lamp device, solves the problems, such as to need the lighting fixture of various different-colours need to set various different-colour light sources, and simplification needs the structure of multi color temperature lighting fixture, reduces the cost with multi color temperature lighting fixture.A kind of lighting fixture, including：Light source and it is arranged at least one liquid crystal structure of the light source light emission side, the liquid crystal structure includes array base palte, opposite substrate and the liquid crystal layer being arranged between the array base palte and the opposite substrate, and the liquid crystal structure is used to be converted to preset color temperature light according to the pre-conditioned light by the light source.
Description
Technical field
The application is related to field of liquid crystal display, more particularly to a kind of lighting fixture and car lamp device.
Background technology
In daily life, the light colour temperature that different environment needs is not quite similar.For example, family expenses incandescent lamp be 2500~
3000K, Vehicle lighting needs colour temperature in 3000~6000K, and photographic light colour temperature is different also to be produced to the actual effect of photo
Influence.Specifically, for example, current Vehicle lighting is all respectively provided with the multiple different-colour such as fog lamp, dipped headlight, high beam
Lighting system, driving is needed according to the light that different-colour is enabled under different environments in way.Conventional car light colour temperature exists
Between 3000K~6000K, in this reference color temperature, colour temperature is higher, and brightness is higher, and penetration power is poorer.So in misty rain day
Gas, generally from fog lamp, the reference color temperature of the lamp is 3000K~4000K, and the light of this section of colour temperature has good penetrability, has
Help driving safety；And low beam, reference color temperature is the light of 4300K generally in 4000K~5000K, especially colour temperature, takes into account and penetrates
Property and brightness；And driven a vehicle at general night, generally from high beam, reference color temperature is generally 5000K~6000K, this section of color
The light of temperature, the visual field performs better than.
From the foregoing, it will be observed that for car lamp device of the prior art, to be respectively provided with the multiples such as fog lamp, dipped headlight, high beam
The lighting system of different-colour lamp source, driving is needed according to the lamp source that different-colour is enabled under different environments in way.That is,
Exist when the lighting fixture of various different-colours is needed in the prior art, the problem of various different-colour light sources need to be set, enter
And there is lighting system complexity, relatively costly problem.
Application content
The application provides a kind of lighting fixture and car lamp device, solves to need the lighting fixture of various different-colours to need setting
The problem of various different-colour light sources, simplification needs the structure of multi color temperature lighting fixture, reduces with multi color temperature lighting fixture
Cost.
The embodiment of the present application provides a lighting fixture and car lamp device, including：Light source and it is arranged on the light source light extraction
At least one liquid crystal structure of side, the liquid crystal structure includes array base palte, opposite substrate and is arranged at the array base palte
With the liquid crystal layer between the opposite substrate, the liquid crystal structure be used for be converted to according to the pre-conditioned light by the light source it is pre-
If color temperature light.
Preferably, the lighting fixture includes a liquid crystal structure, and the liquid crystal structure eliminates color blocking film with multiple
Layer and in the pixel cell of array distribution, each pixel cell include at least two sub-pixel units, each sub- picture
Plain unit has the liquid crystal layer of the preset thickness corresponding with the sub-pixel unit, the liquid crystal layer of the different sub-pixel units
Preset thickness is different；
The liquid crystal structure has determination preset thickness liquid crystal according to pre-conditioned by controlling the light of the light source to pass through
The sub-pixel unit of layer, and then the light of the light source is converted into the preset color temperature light corresponding with the sub-pixel unit.
Preferably, the opposite substrate is being provided with flatness layer towards the side of the liquid crystal layer；
The liquid crystal structure is set and the sub- picture by making the flatness layer in region corresponding with the sub-pixel unit
The corresponding default thicknesses of layers of plain unit, and then it is corresponding with the sub-pixel unit pre- to have each sub-pixel unit
If the liquid crystal layer of thickness.
Preferably, the lighting fixture includes a liquid crystal structure, and the liquid crystal structure eliminates color blocking film with multiple
Layer and in the pixel cell of array distribution, each pixel cell include at least two sub-pixel units, each sub- picture
Plain unit has the liquid crystal layer of the default refractive index corresponding with the sub-pixel unit, the liquid crystal layer of the different sub-pixel units
Default refractive index it is different；
The liquid crystal structure presets index liquid by controlling the light of the light source according to pre-conditioned through with determination
The sub-pixel unit of crystal layer, and then the light of the light source is converted into the preset color temperature light corresponding with the sub-pixel unit.
Preferably, the liquid crystal is blue phase liquid crystal, and the liquid crystal structure is applied by the liquid crystal layer to the sub-pixel unit
Plus predeterminated voltage corresponding with the sub-pixel unit, and then it is relative with the sub-pixel unit to have each sub-pixel unit
The liquid crystal layer of the default refractive index answered.
Preferably, the lighting fixture includes：The first liquid crystal structure with the first incidence surface and the first exiting surface and
The second liquid crystal structure with the second incidence surface and the second exiting surface, the light source is arranged on the first of first liquid crystal structure
Incidence surface side, second liquid crystal structure is arranged on the first light extraction surface side of first liquid crystal structure, the second liquid crystal knot
Structure at least includes the unit area of two and column distribution, and second liquid crystal structure is in second incidence surface and/or described the
Two exiting surfaces are provided with colored film corresponding with the unit area；
First liquid crystal structure, for being mapped to second liquid crystal structure according to the pre-conditioned illumination by the light source
Determination the unit area；
Second liquid crystal structure, the parallel light of the unit area of the determination for being emitted onto second liquid crystal structure
Project, and by being converted to preset color temperature light after colored film corresponding with the unit area.
Preferably, second liquid crystal structure is the separate structure for including at least two sub- liquid crystal structures, each described
Sub- liquid crystal structure constitutes unit area described in；Or, second liquid crystal structure is the one for including at least two regions
Structure, each region constitutes unit area described in.
Preferably, second liquid crystal structure includes two the first sub- liquid crystal structures and the second sub- liquid of spaced setting
Crystal structure, has gap area, the first sub- liquid crystal between the first sub- liquid crystal structure and the second sub- liquid crystal structure
Structure has the first sub- exiting surface, and the second sub- liquid crystal structure has the second sub- exiting surface, and the first sub- liquid crystal structure exists
The first sub- exiting surface is provided with the first colored film, and the second sub- liquid crystal structure is provided with the described second sub- exiting surface
Second colored film；
Second liquid crystal structure, specifically for the first sub- liquid will be incided by the described first sub- liquid crystal structure
The parallel light of crystal structure is projected, and by being converted to the first preset color temperature light after the first colored film；By the described second son
The parallel light that liquid crystal structure will incide the second sub- liquid crystal structure is projected, and is converted to by after the second colored film
Second preset color temperature light；The light of the gap area will be incided with original optical path outgoing.
Preferably, second liquid crystal structure is structure as a whole, and specifically includes：Second area, it is arranged at secondth area
The first area of domain side and the 3rd region of the second area opposite side is arranged at, second structure is described second
Incidence surface is provided with threeth colored film corresponding with the first area, and is provided with and institute in second incidence surface
State corresponding 4th colored film in the 3rd region；
Second liquid crystal structure, the light specifically for will be incided the first area by the first area is put down
Row is projected, and by being converted to the 3rd preset color temperature light after the 3rd colored film；This will be incided by the 3rd region
The parallel light in the 3rd region is projected, and by being converted to the 4th preset color temperature light after the 4th colored film；By described
The parallel light that second area will incide the second area is projected.
The embodiment of the present application also provides a kind of car lamp device, the lighting fixture provided using the embodiment of the present application, institute
Stating preset color temperature light includes：3000K~4000K preset color temperatures light, 4000K~5000K preset color temperatures light and 5000K~
6000K preset color temperature light.
The embodiment of the present application has the beneficial effect that：The embodiment of the present application in lighting fixture by setting at least one liquid crystal
Structure, the light for adjusting light source by liquid crystal structure carries out colour temperature conversion, so can realize making a light source light be converted to it is many
Plant the light of colour temperature, it is to avoid the lighting fixture of the various different-colours of needs need to set the problem of various different-colour light sources, Jin Erke
The structure of multi color temperature lighting fixture is needed with simplification, the cost with multi color temperature lighting fixture is reduced.
Brief description of the drawings
A kind of structural representation of lighting fixture that Fig. 1 is provided for the embodiment of the present application；
The Δ nd of the liquid crystal structure that Fig. 2 is provided for the embodiment of the present application and the relation schematic diagram of colour temperature；
The schematic diagram of the lighting fixture structure with different flatness layer thickness that Fig. 3 is provided for the embodiment of the present application；
The schematic diagram of the lighting fixture structure with different liquid-crystal refractive-indexes that Fig. 4 is provided for the embodiment of the present application；
The second liquid crystal structure that Fig. 5 is provided for the embodiment of the present application have two discrete sub- liquid crystal structures the first is inclined
Turn schematic diagram；
The second liquid crystal structure that Fig. 6 is provided for the embodiment of the present application have two second of discrete sub- liquid crystal structure it is inclined
Turn schematic diagram；
The second liquid crystal structure that Fig. 7 is provided for the embodiment of the present application have two discrete sub- liquid crystal structures the third is inclined
Turn schematic diagram；
The structural representation that Fig. 8 is structure as a whole for the second liquid crystal structure that the embodiment of the present application is provided；
The first deflection schematic diagram that the second liquid crystal structure that Fig. 9 the embodiment of the present application is provided is structure as a whole；
Second deflection schematic diagram that the second liquid crystal structure that Figure 10 the embodiment of the present application is provided is structure as a whole；
The third deflection schematic diagram that the second liquid crystal structure that Figure 11 the embodiment of the present application is provided is structure as a whole.
Specific embodiment
The implementation process of the embodiment of the present application is described in detail with reference to Figure of description.It should be noted that
Same or similar label represents same or similar element or the element with same or like function from start to finish.Lead to below
It is exemplary to cross the embodiment being described with reference to the drawings, and is only used for explaining the application, and it is not intended that limitation to the application.
Referring to Fig. 1, the embodiment of the present application provides a kind of lighting fixture, including：Light source 2 and it is arranged on the light emission side of light source 2
At least one liquid crystal structure 1, liquid crystal structure 1 include array base palte 13, opposite substrate 14 and be arranged at array base palte 13 with
Liquid crystal layer 15 between opposite substrate 14, liquid crystal structure 1 is used to be converted to preset color temperature according to the pre-conditioned light by light source 2
Light.Array base palte 13 can also set the first polaroid (not shown), opposite substrate 14 in the side of dorsad liquid crystal layer 15
The second polaroid (not shown) is also provided with the side of dorsad liquid crystal layer 15.
It should be noted that be only in Fig. 1 be provided with lighting fixture it is that a liquid crystal structure is carried out for example, this Shen
Please be not limited system.In the specific implementation, the liquid crystal structure of lighting fixture can be one, or multiple.Light is filled
Put during including a liquid crystal structure, can (Δ n be for liquid crystal is double by making liquid crystal structure have different Δ nd in different zones
Refractive index, d is thickness of liquid crystal layer), make liquid crystal structure that the light of light source to be converted to the light of different-colour；Lighting fixture includes multiple
During liquid crystal structure, can by multiple liquid crystal structures adjust light propagation path, and arrange in pairs or groups on propagation path of light set have
Color film layer, finally makes the light of light source be converted to the light of different-colour.
For there are different Δ nd in different zones by making liquid crystal structure, the light of light source is converted into different-colour
Light, can specifically keep the thickness of liquid crystal layer d of whole liquid crystal structure consistent, have not in different zones by making liquid crystal structure
Same birefringence Δ n, and then with different Δ nd；Or, the birefringence Δ n mono- of whole liquid crystal structure can be kept
Cause, there are different thickness of liquid crystal layer d in different zones by making liquid crystal structure, and then with different Δ nd.Wherein, Fig. 2
The Δ nd and the relationship change figure of colour temperature simulated for software, wherein, abscissa represents Δ nd, and ordinate represents colour temperature, and D1 is
Colour temperature is the fixed color temperature light sources of 6459K, and D2 is that colour temperature is the fixed color temperature light sources of 5487K, and as shown in Figure 2, lighting fixture goes out
The colour temperature of the light penetrated changes with the change of Δ nd, so it needs to be determined that color temperature light when, it may be determined that go out corresponding Δ
nd.Below by way of specific embodiment, to there are different Δ nd with by the light of light source in different zones by making liquid crystal structure
The light for being converted to different-colour carries out concrete example explanation.
Embodiment one, referring to Fig. 3, the embodiment of the present application one provides a kind of lighting fixture, including：One liquid crystal structure 1 with
And the light source 2 of the incident side of liquid crystal structure 1 is arranged on, light source 2 is specifically as follows backlight module, wherein, liquid crystal structure 1 includes battle array
Row substrate 13, opposite substrate 14 and the liquid crystal layer 15 being arranged between array base palte 13 and opposite substrate 14, opposite substrate 14
On be also provided with black matrix 18, public electrode 19 is also provided with array base palte.Liquid crystal structure 1 includes multiple removal
Color blocking film layer and in the pixel cell 16 (pixel cell is illustrate only in figure) of array distribution, each pixel cell 16 is wrapped
Three sub-pixel units are included, respectively：First sub-pixel unit 161, the second sub-pixel unit 162 and the 3rd sub-pixel unit
163.Wherein, opposite substrate 14 is towards the side of liquid crystal layer 15 being provided with flatness layer 141, flatness layer 141 with sub-pixel list
The corresponding region of unit sets default thicknesses of layers corresponding with the sub-pixel unit.That is, it is corresponding with the first sub-pixel unit 161
The thickness of flatness layer 141 is D1, and the thickness with the corresponding flatness layer 141 of the second sub-pixel unit 162 is D2, with the 3rd sub-pixel
The thickness of the corresponding flatness layer 141 of unit 163 is D3, and liquid crystal structure 1 is passed through according to pre-conditioned by controlling the light of light source 2
The sub-pixel unit of determination, and then the light of light source 2 is converted into the preset color temperature light corresponding with the sub-pixel unit.
That is, the lighting fixture for being provided for the embodiment of the present application one, the knot of this kind of lighting fixture and existing display panel
Structure is more close.Light source is the backlight module of existing display panel, and liquid crystal structure is by the liquid crystal cell after improvement, i.e. this Shen
Please embodiment one liquid crystal structure compared to liquid crystal cell with prior art, eliminate the color film on the color membrane substrates in liquid crystal cell,
And flatness layer is formed different thickness in different zones, and then array base palte and opposite substrate is formed difference in different zones
The gap of thickness, then when injecting liquid crystal between, can form the liquid crystal layer of different-thickness in different zones, and light source
Light is by that can be converted to different colour temperatures after the liquid crystal layer of different-thickness.If that is, for example, the lighting fixture is car lamp device,
Tri- kinds of light of colour temperature of A, B, C that colour temperature is reduced successively need to be set, then need each pixel cell in liquid crystal structure to be correspondingly arranged
Three sub-pixel units.If the colour temperature of the light source chosen is the fixed color temperature light sources of 6459K, the birefringence Δ n of liquid crystal is fixed
Value, then, and the corresponding relation of Δ nd and colour temperature according to Fig. 2, it may be determined that go out the Δ that the light of specific each colour temperature needs
Nd values, and then the value of d can be determined, can further determine the thickness of the flatness layer that each sub-pixel unit need to specifically be set
Degree.And in the specific implementation, if being currently misty rain environment, there is the C color temperature lights of preferable penetrability for car lamp device outgoing, then
The corresponding liquid crystal of the 3rd sub-pixel unit of liquid crystal structure by the control to liquid crystal structure, can be made to enter horizontal deflection, make light source
Light by the 3rd sub-pixel unit and carrying out outgoing, and the liquid of the first sub-pixel unit and the 3rd sub-pixel unit can be made
Crystalline substance does not deflect, and then may finally make the liquid crystal structure be in the 3rd sub-pixel unit outgoing colour temperature of each pixel cell only
C light (assuming that the thickness of the corresponding flatness layer of the 3rd sub-pixel unit can be with the light of outgoing C colour temperatures, and the first sub-pixel unit
The light of correspondence outgoing A colour temperatures, the light of the second sub-pixel unit correspondence outgoing B colour temperatures).
Embodiment two, referring to Fig. 4, the embodiment of the present application two provides a kind of lighting fixture, including：One liquid crystal structure 1 with
And the light source 2 of the incident side of liquid crystal structure 1 is arranged on, light source 2 is specifically as follows backlight module, wherein, liquid crystal structure 1 includes many
It is individual to eliminate color blocking film layer and in the pixel cell 16 (pixel cell is illustrate only in figure) of array distribution, each pixel list
Unit 16 includes three sub-pixel units, respectively：First sub-pixel unit 161, the second sub-pixel unit 162 and the 3rd sub- picture
Plain unit 163.Wherein, liquid crystal is blue phase liquid crystal, and liquid crystal structure 1 applies and the sub-pixel by the liquid crystal layer of sub-pixel unit
The corresponding predeterminated voltage of unit, and then make each sub-pixel unit that there is the default refractive index corresponding with the sub-pixel unit
Liquid crystal layer.Liquid crystal structure according to pre-conditioned, by controlling the light of light source through the sub-pixel unit for determining, and then by light source
Light is converted to the preset color temperature light corresponding with the sub-pixel unit.
For blue phase liquid crystal, it has following relation between electric-field intensity：
Wherein, Es is saturation electric-field intensity, and E is to apply the electric-field intensity under different voltages；ΔnsIt is saturation electric-field intensity
Under birefringence, i.e. can by changing, to be applied to driving voltage on blue phase liquid crystal different, obtain different Δ nd, with
Reach the purpose for changing emergent ray colour temperature.
That is, the lighting fixture for being provided for the embodiment of the present application two, the knot of this kind of lighting fixture and existing display panel
Structure is more close.Light source is the backlight module of existing display panel, and liquid crystal structure is by the liquid crystal cell after improvement, i.e. this Shen
Please embodiment two liquid crystal structure compared to liquid crystal cell with prior art, eliminate the color film on the color membrane substrates in liquid crystal cell,
What is used is blue phase liquid crystal, and blue phase liquid crystal can form different birefringence Δ n under different voltage, and then in liquid
When the corresponding region of the different subpixel unit of crystal structure applies different voltages, can make the region liquid crystal have it is corresponding
Birefringence, and the light of light source is by that can be converted to different colour temperatures after the liquid crystal layer of different birefringences.That is, for example,
If the lighting fixture is car lamp device, tri- kinds of light of colour temperature of A, B, C that colour temperature is reduced successively need to be set, then needed in liquid crystal structure
Each pixel cell be correspondingly arranged three sub-pixel units.If the colour temperature of the light source chosen is the fixed color temperature light sources of 6459K,
When the thickness d of the liquid crystal layer of liquid crystal structure is definite value, then, the corresponding relation of Δ nd and colour temperature according to Fig. 2 can be true
The Δ n values that the light of specific each colour temperature needs are made, and according to blue phase liquid crystal and the relation of electric-field intensity, can be further true
Make the magnitude of voltage for needing to apply.In the specific implementation, if being currently misty rain environment, preferably worn in order to car lamp device outgoing has
The C color temperature lights of permeability, then can apply corresponding voltage by the control to liquid crystal structure, the unit to the 3rd sub-pixel,
Making the liquid crystal of the 3rd sub-pixel unit has corresponding birefringence, and makes the corresponding liquid of the 3rd sub-pixel unit of liquid crystal structure
Crystalline substance enters horizontal deflection, enables the light of light source by the 3rd sub-pixel unit and carries out outgoing, and make the first sub-pixel unit and
The liquid crystal of the 3rd sub-pixel unit does not deflect, and then may finally make liquid crystal structure only in the 3rd son of each pixel cell
Pixel cell outgoing colour temperature is the light of C (assuming that the refractive index under the 3rd sub-pixel unit corresponding voltage can be with outgoing C colour temperatures
Light, and the refractive index under the first sub-pixel unit corresponding voltage can be with the light of outgoing A colour temperatures, the second sub-pixel unit corresponding voltage
Under refractive index can be with the light of outgoing B colour temperatures).
The colour temperature of white light can also be changed due to different RGB three primary colours, for the embodiment of the present application one and embodiment
Two liquid crystal structures for providing, it is also possible to RGB three primary colours are set on opposite substrate, RGB and Δ nd control cooperations can reach more
Colour temperature control range wide.
For the propagation path that light is adjusted by multiple liquid crystal structures, and the diverse location on propagation path of light of arranging in pairs or groups is set
Colored film, the light of light source is converted to the light of different-colour, specific light source can be include spherical light source and
The concave mirror of spherical light source exiting parallel after reflection, specific liquid crystal structure are included：Go out with the first incidence surface and first
First liquid crystal structure of smooth surface and the second liquid crystal structure with the second incidence surface and the second exiting surface, light source are arranged on
First incidence surface side of one liquid crystal structure, the second liquid crystal structure is arranged on the first light extraction surface side of the first liquid crystal structure, the second liquid
Crystal structure at least includes the unit area of two and column distribution, and the second liquid crystal structure is in the second incidence surface and/or the second exiting surface
It is provided with colored film corresponding with unit area；First liquid crystal structure, for being mapped to the illumination of light source according to pre-conditioned
The unit area of the determination of the second liquid crystal structure；Second liquid crystal structure, the list of the determination for being emitted onto the second liquid crystal structure
The parallel light in first region is projected, and by being converted to preset color temperature light after colored film corresponding with the unit area.Unit
Setting can be separated by between region, it is also possible to set in contact successively.
Specific first liquid crystal structure can be the liquid crystal cell of the color blocking film layer for eliminating color membrane substrates, the second liquid crystal structure
Can be the separate structure for including at least two sub- liquid crystal structures, each sub- liquid crystal structure constitutes a unit area；Or, the
Two liquid crystal structures can also be the integrative-structure for including at least two regions, and each region constitutes a unit area.Second liquid
Crystal structure can be the liquid crystal cell of the colored film for eliminating color membrane substrates, but second liquid crystal structure the second incidence surface and/
Or second the different units region of exiting surface different colored films are set, i.e. the liquid crystal structure not with pixel cell for singly
Position sets colored film, but integrally sets same colored film a unit area, in another unit area
Another colored film is set.It is illustrated by specific embodiment individually below.
Embodiment three, shown in Figure 5, specific light source 2 can be to include spherical light source 21 and by spherical light source 21
The concave mirror 22 of exiting parallel after reflection, specific liquid crystal structure 1 includes：With the first incidence surface 1101 and the first exiting surface
1102 the first liquid crystal structure 11 and the second liquid crystal structure 12 with the second incidence surface 1201 and the second exiting surface 1202,
Light source 2 is arranged on the side of the first incidence surface 1101 of the first liquid crystal structure 11, and the second liquid crystal structure 12 is arranged on the first liquid crystal structure
11 side of the first exiting surface 1102.Second liquid crystal structure 12 includes two Hes of the first sub- liquid crystal structure 121 of spaced setting
Second sub- liquid crystal structure 122, has gap area 123 between the first sub- liquid crystal structure 121 and the second sub- liquid crystal structure 122, the
One sub- liquid crystal structure 121 has the first sub- exiting surface, and the second sub- liquid crystal structure 122 has the second sub- exiting surface, the first sub- liquid crystal
Structure 121 is provided with the first colored film 171 in the first sub- exiting surface, and the second sub- liquid crystal structure 122 sets in the second sub- exiting surface
It is equipped with the second colored film 172；
Second liquid crystal structure 12, specifically for the first sub- liquid crystal structure will be incided by the first sub- liquid crystal structure 121
121 parallel light is projected, and by being converted to the first preset color temperature light after the first colored film 171；By the second sub- liquid crystal
The parallel light that structure 122 will incide the second sub- liquid crystal structure 122 is projected, and by being changed after the second colored film 172
It is the second preset color temperature light；The light of gap area 123 will be incided with original optical path outgoing.It should be noted that the application is implemented
The size of the concave mirror of example three can be configured according to the gap area of light, i.e. for the concave mirror of the embodiment of the present application three,
The directional light that it is reflected need to meet can whole parallel gap areas 123 for inciding the second liquid crystal structure 12.
I.e., in the specific implementation, the lighting fixture for being provided for the embodiment of the present application three, if the lighting fixture is filled for car light
Put, the colour temperature of the light source of car light is 5500K, when lighting environment is very poor but during weather environment without misty rain, as shown in figure 5, this
When the first liquid crystal structure 11, the first sub- liquid crystal structure 121 and the second sub- liquid crystal structure 122 all not be subject to electric field driven, all
It is pellucidity, the parallel light that car light sends is projected by the first liquid crystal structure 11, and the car light of this colour temperature has good brightness
And the visual field, be conducive to driving at night safety；When in weather environment down train such as mist, snow, rain dirt, in order to traffic safety needs drop
Low car light colour temperature to 3000K~4000K improve light penetrability, now as shown in fig. 6, the first liquid crystal structure 11 is in drive circuit
Control under form liquid crystal prism, the light of vehicle lamp light source deflects the sub- liquid crystal structure of directive first by the first liquid crystal structure 11
121, the first sub- liquid crystal structure 121 also forms liquid crystal prism under the control of drive circuit, the light of incidence is become directional light
Finally projected from the first colored film 171, the injection light colour temperature of final vehicle lamp light source is changed into the warm colour light of 3000K~4000K,
There is very strong penetrability in weather such as mist, snow, rain dirt；Likewise, as shown in fig. 7, when drive circuit makes the first liquid crystal knot simultaneously
When structure 11, the second sub- liquid crystal structure 122 form liquid crystal prism, the light for projecting vehicle lamp light source is deflected, and continues through the first liquid
Crystal structure 11, the second sub- liquid crystal structure 122 and the second colored film 172 so that project light colour temperature be changed into 4000K~
5000K, particularly in 4300K, there is preferable penetrability, and brightness higher has taken into account penetrability and brightness, is adapted to having a rain
Used in the case of mist or night illumination situation are preferable.The colored film 172 of specific first colored film 171 and second can be with
In the specific implementation, selected as needed.
Example IV, shown in Figure 8, the second liquid crystal structure 12 is structure as a whole, and specifically includes：Second area 125, set
The first area 124 for being placed in the side of second area 125 and the 3rd region 126 for being arranged at the opposite side of second area 125, second
Liquid crystal structure 12 is provided with threeth colored film 173 corresponding with first area 124 in the second incidence surface 1201, and
Two incidence surfaces 1201 are provided with and corresponding 4th colored film 174 in the 3rd region 126；
Second liquid crystal structure 12, the parallel light specifically for will be incided the first area 124 by first area 124 is penetrated
Go out, and by being converted to the 3rd preset color temperature light after the 3rd colored film 173；By the 3rd region 126 will incide this
The parallel light in three regions 126 is projected, and by being converted to the 4th preset color temperature light after the 4th colored film 174；By second
The parallel light that the second area 125 will be incided in region 125 is projected.
I.e., in the specific implementation, the lighting fixture for being provided for the embodiment of the present application four, if the lighting fixture is filled for car light
Put, vehicle lamp light source colour temperature is 5500K, and second liquid crystal structure 12 is structure as a whole, when car light colour temperature need not be changed, referring to
Fig. 9, the first liquid crystal structure 11 forms convex lens prism, and the second liquid crystal structure 12 forms recessed prism, makes colour temperature in second area 125
5500K car lights light is from the parallel injection of second area 125；It is shown in Figure 10 when needing to be converted to three color temperature lights, first
Liquid crystal structure 11 forms the prism for making light be deflected to first area 124, through the 3rd colored film 173, and the second liquid crystal structure
12 first area 124 formed non-parallel light is become the prism of directional light, the light that last car light is changed into the 3rd colour temperature is parallel
Project；Shown in Figure 11 when needing to be converted to four color temperature lights, the first liquid crystal structure 11 is formed makes light to the 3rd region
The prism of 126 deflections, through the 4th colored film 174, and the second liquid crystal structure 12 is formed in the 3rd region 126 and makes non-parallel light
Become the prism of directional light, last car light is changed into the parallel injection of light of the 4th colour temperature.
The embodiment of the present application also provides a kind of car lamp device, using the embodiment of the present application one, embodiment two, embodiment three or
The lighting fixture that example IV is provided, preset color temperature light includes：3000K~4000K preset color temperatures light, 4000K~5000K preset
Color temperature light and 5000K~6000K preset color temperature light.
The embodiment of the present application has the beneficial effect that：The embodiment of the present application in lighting fixture by setting at least one liquid crystal
Structure, the light for adjusting light source by liquid crystal structure carries out colour temperature conversion, so can realize making a light source light be converted to it is many
Plant the light of colour temperature, it is to avoid needing the lighting fixture of various different-colours to need to set the problem of various different-colour light sources, entering
And the structure for needing multi color temperature lighting fixture can be simplified, reduce the cost with multi color temperature lighting fixture.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the application to the application
God and scope.So, if these modifications of the application and modification belong to the scope of the application claim and its equivalent technologies
Within, then the application is also intended to comprising these changes and modification.
Claims (10)
1. a kind of lighting fixture, it is characterised in that including：Light source and it is arranged at least one liquid crystal of the light source light emission side
Structure, the liquid crystal structure include array base palte, opposite substrate and be arranged at the array base palte and the opposite substrate it
Between liquid crystal layer, the liquid crystal structure be used for preset color temperature light is converted to according to the pre-conditioned light by the light source.
2. lighting fixture as claimed in claim 1, it is characterised in that the lighting fixture includes a liquid crystal structure, described
There is liquid crystal structure multiple to eliminate color blocking film layer and in the pixel cell of array distribution, and each pixel cell is included at least
Two sub-pixel units, each sub-pixel unit has the liquid crystal layer of the preset thickness corresponding with the sub-pixel unit,
The preset thickness of the liquid crystal layer of the different sub-pixel units is different；
The liquid crystal structure has determination preset thickness liquid crystal layer according to pre-conditioned by controlling the light of the light source to pass through
Sub-pixel unit, and then the light of the light source is converted into the preset color temperature light corresponding with the sub-pixel unit.
3. lighting fixture as claimed in claim 2, it is characterised in that the opposite substrate is towards the side of the liquid crystal layer
It is provided with flatness layer；
The liquid crystal structure is set and the sub-pixel list by making the flatness layer in region corresponding with the sub-pixel unit
The corresponding default thicknesses of layers of unit, and then make each sub-pixel unit that there is the default thickness corresponding with the sub-pixel unit
The liquid crystal layer of degree.
4. lighting fixture as claimed in claim 1, it is characterised in that the lighting fixture includes a liquid crystal structure, described
There is liquid crystal structure multiple to eliminate color blocking film layer and in the pixel cell of array distribution, and each pixel cell is included at least
Two sub-pixel units, each sub-pixel unit has the liquid crystal of the default refractive index corresponding with the sub-pixel unit
Layer, the default refractive index of the liquid crystal layer of the different sub-pixel units is different；
The liquid crystal structure presets index liquid crystal layer by controlling the light of the light source according to pre-conditioned through with determination
Sub-pixel unit, and then the light of the light source is converted into the preset color temperature light corresponding with the sub-pixel unit.
5. lighting fixture as claimed in claim 4, it is characterised in that the liquid crystal is blue phase liquid crystal, the liquid crystal structure leads to
Cross and apply predeterminated voltage corresponding with the sub-pixel unit to the liquid crystal layer of the sub-pixel unit, and then make each sub- picture
Plain unit has the liquid crystal layer of the default refractive index corresponding with the sub-pixel unit.
6. lighting fixture as claimed in claim 1, it is characterised in that the lighting fixture includes：With the first incidence surface and
First liquid crystal structure of the first exiting surface and the second liquid crystal structure with the second incidence surface and the second exiting surface, the light
Source is arranged on the first incidence surface side of first liquid crystal structure, and second liquid crystal structure is arranged on first liquid crystal structure
The first light extraction surface side, second liquid crystal structure at least includes the unit area of two and column distribution, the second liquid crystal knot
Structure is provided with colored film corresponding with the unit area in second incidence surface and/or second exiting surface；
First liquid crystal structure, for being mapped to second liquid crystal structure really according to the pre-conditioned illumination by the light source
The fixed unit area；
Second liquid crystal structure, the parallel light of the unit area of the determination for being emitted onto second liquid crystal structure is penetrated
Go out, and by being converted to preset color temperature light after colored film corresponding with the unit area.
7. lighting fixture as claimed in claim 6, it is characterised in that second liquid crystal structure is to include at least two sons
The separate structure of liquid crystal structure, each sub- liquid crystal structure constitutes unit area described in；Or, second liquid crystal structure
To include the integrative-structure at least two regions, each region constitutes unit area described in.
8. lighting fixture as claimed in claim 7, it is characterised in that second liquid crystal structure includes that two spaced set
The the first sub- liquid crystal structure and the second sub- liquid crystal structure put, between the first sub- liquid crystal structure and the second sub- liquid crystal structure
With gap area, the first sub- liquid crystal structure has the first sub- exiting surface, and the second sub- liquid crystal structure has the second son
Exiting surface, the first sub- liquid crystal structure is provided with the first colored film, the second sub- liquid crystal in the described first sub- exiting surface
Structure is provided with the second colored film in the described second sub- exiting surface；
Second liquid crystal structure, specifically for the first sub- liquid crystal knot will be incided by the described first sub- liquid crystal structure
The parallel light of structure is projected, and by being converted to the first preset color temperature light after the first colored film；By the described second sub- liquid crystal
The parallel light that structure will incide the second sub- liquid crystal structure is projected, and by being converted to second after the second colored film
Preset color temperature light；The light of the gap area will be incided with original optical path outgoing.
9. lighting fixture as claimed in claim 7, it is characterised in that second liquid crystal structure is structure as a whole, specific bag
Include：Second area, the first area for being arranged at the second area side and it is arranged at the of the second area opposite side
Three regions, second liquid crystal structure is provided with threeth Coloured film corresponding with the first area in second incidence surface
Layer, and the 4th colored film corresponding with the 3rd region；
Second liquid crystal structure, the parallel light specifically for will be incided the first area by the first area is penetrated
Go out, and by being converted to the 3rd preset color temperature light after the 3rd colored film；This will be incided by the 3rd region described
The parallel light in the 3rd region is projected, and by being converted to the 4th preset color temperature light after the 4th colored film；By described second
The parallel light that the second area will be incided in region is projected.
10. a kind of car lamp device, it is characterised in that described to preset using the lighting fixture as described in claim any one of 1-9
Color temperature light includes：3000K~4000K preset color temperatures light, 4000K~5000K preset color temperatures light and 5000K~6000K preset
Color temperature light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710288339.XA CN106896580B (en) | 2017-04-27 | 2017-04-27 | Lighting device and car light device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710288339.XA CN106896580B (en) | 2017-04-27 | 2017-04-27 | Lighting device and car light device |
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| Publication Number | Publication Date |
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| CN106896580A true CN106896580A (en) | 2017-06-27 |
| CN106896580B CN106896580B (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710288339.XA Active CN106896580B (en) | 2017-04-27 | 2017-04-27 | Lighting device and car light device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534077A (en) * | 2018-01-25 | 2018-09-14 | 殷小卫 | Three colour temperature LED headlights of intelligent-induction |
| CN112305793A (en) * | 2019-08-01 | 2021-02-02 | 北京小马智行科技有限公司 | Retro-reflector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101140392A (en) * | 2007-10-15 | 2008-03-12 | 友达光电股份有限公司 | Lcd |
| CN202140941U (en) * | 2011-06-14 | 2012-02-08 | 芜湖安瑞光电有限公司 | Light-emitting diode (LED) automotive lamp with adjustable color temperature |
| CN103104833A (en) * | 2011-11-14 | 2013-05-15 | 普朗克股份有限公司 | Color temperature regulating device for illumination, illumination apparatus, and method of regulating color temperature |
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2017
- 2017-04-27 CN CN201710288339.XA patent/CN106896580B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101140392A (en) * | 2007-10-15 | 2008-03-12 | 友达光电股份有限公司 | Lcd |
| CN202140941U (en) * | 2011-06-14 | 2012-02-08 | 芜湖安瑞光电有限公司 | Light-emitting diode (LED) automotive lamp with adjustable color temperature |
| CN103104833A (en) * | 2011-11-14 | 2013-05-15 | 普朗克股份有限公司 | Color temperature regulating device for illumination, illumination apparatus, and method of regulating color temperature |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534077A (en) * | 2018-01-25 | 2018-09-14 | 殷小卫 | Three colour temperature LED headlights of intelligent-induction |
| CN112305793A (en) * | 2019-08-01 | 2021-02-02 | 北京小马智行科技有限公司 | Retro-reflector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106896580B (en) | 2020-04-14 |
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