CN108565676A - A kind of laser light source and display device - Google Patents
A kind of laser light source and display device Download PDFInfo
- Publication number
- CN108565676A CN108565676A CN201810622378.3A CN201810622378A CN108565676A CN 108565676 A CN108565676 A CN 108565676A CN 201810622378 A CN201810622378 A CN 201810622378A CN 108565676 A CN108565676 A CN 108565676A
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- Prior art keywords
- light
- laser
- light portion
- wavelength conversion
- output
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/48—Laser speckle optics
Abstract
The invention discloses a kind of laser light sources, including the first light portion, the second light portion, wavelength conversion section and closing light portion；First light portion is for sending out three primary colors laser；Second light portion is for sending out laser irradiation to wavelength conversion section；At least one primitive color light is generated after the laser irradiation that wavelength conversion section is used to be sent out by the second light portion, closing light portion is used to converge the light that three primary colors laser and wavelength conversion section generate and export.Laser light source of the present invention, wavelength conversion section can generate at least one primitive color light, the light generated by wavelength conversion section can adjust the ratio of corresponding primitive color light in the three primary colors laser that the first light portion is sent out, and then adjust the gamut range of light source output light, output light can be made to meet standard color gamut range, and color management need not be carried out compared with prior art, light utilization efficiency is high.The invention also discloses a kind of display devices including above-mentioned laser light source.
Description
Technical field
The present invention relates to technical field of laser display, more particularly to a kind of laser light source.It is aobvious that the invention further relates to one kind
Showing device.
Background technology
Laser has the characteristics that brightness is high, wavestrip is narrow, etendue is small, therefore is shone in laser display field and laser
Bright field has broad application prospects.
In the prior art, include mainly following two schemes as the light source of display device using laser：
The first scheme：Three color laser light source output light of red, green, blue is respectively adopted, converges to obtain white light, be typically chosen
The green light of 520nm or so wavelength, 638nm or so the feux rouges of wavelength and the blue light of 465nm or so, since the wavelength of three color laser is solid
It is fixed, therefore the colour gamut converged is fixed.But this scheme has the following disadvantages：The wavelength of three laser light source output lights is fixed,
Determine achievable maximum gamut range, and obtained gamut range is more than standard color gamut range, in practical applications in order to
Meet standard color gamut range needs, color management can be carried out in a display device, this can make brightness output compare original brightness
Weaken, light utilization efficiency is low.
Second scheme：Using blue light illumination Wavelength converter such as phosphor material powder, and sodium yellow is generated, then by Huang
Coloured light isolates green light and feux rouges or is converted directly into green light and feux rouges by blue light, combined with former blue laser be input to it is aobvious
Showing device.The program obtains green light and feux rouges by Wavelength converter, and obtained gamut range is less than standard color gamut model
It encloses, and is to reach standard color gamut range to be filtered, the special wavelength light for wherein influencing colour gamut is filtered out, then input display
Device, and being filtered can so that brightness output weakens than original brightness, light utilization efficiency is low.
Invention content
The object of the present invention is to provide a kind of laser light source, output light disclosure satisfy that standard color gamut range, and with existing skill
Art is high compared to light utilization efficiency.The present invention also provides a kind of display devices.
To achieve the above object, the present invention provides the following technical solutions：
A kind of laser light source, including the first light portion, the second light portion, wavelength conversion section and closing light portion；
First light portion is for sending out three primary colors laser；
Second light portion is for sending out laser irradiation to the wavelength conversion section；
At least one primitive color light is generated after the laser irradiation that the wavelength conversion section is used to be sent out by second light portion；
The closing light portion is used to converge the light that three primary colors laser and the wavelength conversion section generate and export.
Preferably, first light portion includes the output section of an output three primary colors laser, and second light portion includes defeated
Go out the output section of laser.
Preferably, first light portion includes at least two output sections, and each output section exports three primary colors laser, institute
It includes the output section for exporting laser to state the second light portion.
Preferably, first light portion includes at least three output sections, and each output section exports a kind of primary colors laser.
Preferably, first light portion further includes laser quasi be correspondingly arranged with output section, for exporting output section
Straight optical module, second light portion further include laser alignment be correspondingly arranged with output section, for exporting output section
Optical module.
Preferably, the output section is optical fiber or laser.
Preferably, the wavelength conversion section includes：
The Wavelength changing element of at least one primitive color light is generated after laser irradiation that second light portion is sent out；
The optical module in the closing light portion is incident in guiding after the light that the Wavelength changing element generates is collimated.
Preferably, the illumination that the light of first light portion output and the wavelength conversion section are sent out is mapped to the closing light
Portion, the closing light portion go out the light transmission that first light portion exports, the light that the closing light portion sends out the wavelength conversion section
It reflects, the light that three primary colors laser and the wavelength conversion section generate is converged and exports.
Preferably, further include reflecting element, first light portion and second light portion are arranged side by side, second light portion
The light of output is incident on the reflecting element, and the reflecting element reflects light to the wavelength conversion section.
A kind of display device, including above-described laser light source.
As shown from the above technical solution, laser light source provided by the present invention includes the first light portion, the second light portion, wavelength turn
Change portion and closing light portion；Wherein, the first light portion sends out three primary colors laser, and the second light portion sends out laser irradiation to wavelength conversion section, wave
Long converter section sends out at least one primitive color light, is converged the light that three primary colors laser and wavelength conversion section generate and defeated by closing light portion
Go out.
Laser light source provided by the invention, wavelength conversion section can generate at least one primitive color light, be produced by wavelength conversion section
Raw light can adjust the ratio of corresponding primitive color light in the three primary colors laser that the first light portion is sent out, and then adjust light source output light
Gamut range can make output light meet standard color gamut range, and need not carry out color management compared with prior art, light profit
With rate height.
The present invention also provides a kind of display devices, can reach above-mentioned advantageous effect.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of schematic diagram of laser light source provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram for laser light source that the first embodiment of the invention provides；
Fig. 3 is a kind of schematic diagram for laser light source that second of embodiment of the invention provides；
Fig. 4 is a kind of schematic diagram for laser light source that the third embodiment of the invention provides；
Fig. 5 is the gamut range of light source output light in a specific example of the invention；
Fig. 6 is the spectrum of light source output light in a specific example of the invention.
Specific implementation mode
In order to make those skilled in the art more fully understand the technical solution in the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without making creative work, should all belong to protection of the present invention
Range.
Referring to FIG. 1, Fig. 1 is a kind of schematic diagram of laser light source provided in this embodiment.As seen from the figure, the present embodiment carries
The laser light source of confession includes the first light portion 10, the second light portion 11, wavelength conversion section 12 and closing light portion 13.
First light portion 10 is for sending out three primary colors laser.
Second light portion 11 is for sending out laser irradiation to the wavelength conversion section 12.
At least one primary colors is generated after the laser irradiation that the wavelength conversion section 12 is used to be sent out by second light portion 11
Light.
The closing light portion 13 by the light that three primary colors laser and the wavelength conversion section 12 generate for converging and exporting.
The wavelength conversion section refers to that the component of specific band range light can be generated under special wavelength light irradiation.This
In embodiment laser light source, the first light portion sends out three primary colors laser, and the second light portion sends out laser irradiation to wavelength conversion section, wavelength
Converter section sends out at least one primitive color light under light illumination.The three primary colors laser and wavelength conversion section that first light portion is sent out generate
Light is incident on closing light portion, the light that three primary colors laser and wavelength conversion section generate is converged by closing light portion and is exported.
Wavelength conversion section can generate at least one primitive color light, and the light that this laser light source is generated by wavelength conversion section can be adjusted
The ratio of corresponding primitive color light in the three primary colors laser that whole first light portion is sent out, and then adjust the gamut range of light source output light, energy
So that output light is met standard color gamut range, and color management need not be carried out compared with prior art, light utilization efficiency is high.
Also, in the prior art, due to the correlation of laser light source in the first scheme, light source output light is through wavelength magnitude
After the screen reflection of roughness, laser speckle can be formed in human eye, speckle phenomena has seriously affected picture quality.And this laser light
Since wavelength conversion section generates the addition of light in source, by the abundant spectrum for converging rear light, the phenomenon that falls apart can be weakened.
With reference to embodiment and laser light source of the present invention is described in detail in attached drawing.
In the first embodiment, referring to FIG. 2, the laser light source includes the first light portion 20, the second light portion 21, wave
Long converter section 22 and closing light portion 23.
First light portion 20 is for sending out three primary colors laser.Primaries can be feux rouges, green light and blue light, alternatively, first
The primaries that light portion is sent out can also be other primaries, all in the scope of the present invention.Specifically, the first light portion 20
The output section 200 for including an output three primary colors laser, three kinds of primary colors laser are exported by output section 200 together.It is being embodied
When, output section 200 continuously can export three kinds of primitive color lights simultaneously or output section 200 can be according to default sequential in turn
Three kinds of primitive color lights are exported, can be accordingly arranged according to demand in practical applications.
Second light portion 21 is for sending out laser irradiation to wavelength conversion section 22.Swash specifically, the second light portion 21 includes output
The output section 210 of light exports laser by output section 210.
Optionally, output section 200 and output section 210 can be optical fiber or laser.
Preferably, the first light portion 20 further includes being correspondingly arranged with output section 200, sharp for exporting output section 200
The optical module 201 of light collimation.Output light is collimated by optical module 201, keeps optical propagation direction parallel, light energy concentrate and
Uniformly.
Second light portion 21 further includes laser alignment be correspondingly arranged with output section 210, for exporting output section 210
Optical module 211.Output light is collimated by optical module 211, keeps optical propagation direction parallel, light energy concentrate and it is uniform.
In the specific implementation, optical module 201, optical module 211 may include lens, prism, diaphragm or other light
Element is learned, also all in the scope of the present invention.
At least one primitive color light is generated after the laser irradiation that wavelength conversion section 22 is sent out by the second light portion 21.Specifically, can
Wavelength conversion section 22 is set to generate a kind of primitive color light, the phase that the primitive color light chromaticity coordinates of the generation is exported with the first light portion under light illumination
Primitive color light chromaticity coordinates is answered to have deviation, generating the primaries that light is sent out with the first light portion by the wavelength conversion section 22 converges, energy
The ratio of each primitive color light in primaries is enough adjusted, and then the colour gamut of light source output light can be adjusted.Alternatively, wavelength convert can be made
It includes two kinds of primitive color lights that portion 22 generates under light illumination, three originals sent out by the wavelength conversion section 22 generation light and the first light portion
Coloured light converges, and can adjust the ratio of each primitive color light in primaries, and then adjust the gamut range of light source output light.In reality
Above-mentioned each toning scheme can accordingly be selected according to demand in.
Preferably, referring to FIG. 2, wavelength conversion section 22 can be arranged including：After the laser irradiation sent out by the second light portion 21
Generate the Wavelength changing element 220 of at least one primitive color light；It guides and is incident on after the light that Wavelength changing element 220 generates is collimated
The optical module 221 in closing light portion 23.Wavelength changing element 220 sends out light under light illumination, and optical module 221 collimates the light into, makes
Optical propagation direction is parallel, and light energy is concentrated and uniform, and is incident on closing light portion 23.
Optionally, fluorescent material can be used in Wavelength changing element 220, and fluorescent material can be ceramic fluorescent material, crystal
The fluorescent material either fluorophor made of organic gel or inorganic glue mixed fluorescent powder, but not limited to this, can also be other
The wavelength conversion material of type, all in the scope of the present invention.Optical module 221 may include lens, prism, diaphragm or
Other optical elements, also all in the scope of the present invention.
Closing light portion 23 is for converging the three primary colors laser that the first light portion 20 is sent out and the light that wavelength conversion section 22 generates
And it exports.In the specific implementation, the light that the first light portion 20 exports can be set and the illumination that wavelength conversion section 22 is sent out is mapped to conjunction
Light portion 23, closing light portion 23 go out the light transmission that the first light portion 20 exports, the light reflection that closing light portion 23 sends out wavelength conversion section 22
Go out, the light that three primary colors laser and wavelength conversion section generate is converged and exports.
Optionally, light combination mirror can be used in closing light portion 23, the light transmission mistake that the light combination mirror used can send out the first light portion,
And wavelength conversion section can be generated light reflection and gone out, two-way light is converged.
Optionally, closing light portion 23 can be used part plating reflectance coating eyeglass, local transmission, local reflex, but not limited to this,
Other closing light elements can also be used, also all in the scope of the present invention.
In addition in the specific implementation, it can be designed according to light-source structure and accordingly arrange the position of each component and carry out light
Road is laid out.Illustratively, it can refer to shown in Fig. 2, the first light portion 20 and the second light portion 21 can be arranged side by side, the first light portion 20 goes out
It penetrates light and shines directly into closing light portion 23,.This light source further includes reflecting element 24, and the light of the second light portion 21 output is incident on reflective member
Part 24, reflecting element 24 reflect light to wavelength conversion section 22.The illumination that wavelength conversion section 22 is sent out be mapped to closing light portion 23 and by
It reflects, the light of the first light portion 20 output is incident on closing light portion 23 and is transmitted out.It is understood that in other embodiment
In may be used other light path layouts and for carry out light path layout use other optical elements, also all the present invention protection model
In enclosing.
As can be seen that the laser light source that present embodiment provides, wavelength conversion section can generate at least one primitive color light, pass through
The light that wavelength conversion section generates can adjust the ratio of corresponding primitive color light in the three primary colors laser that the first light portion is sent out, and then adjust
The gamut range of light source output light can make output light meet standard color gamut range, and need not carry out compared with prior art
Color management, light utilization efficiency are high.
In the second embodiment, referring to FIG. 3, the laser light source includes the first light portion 30, the second light portion 31, wave
Long converter section 32 and closing light portion 33.
First light portion 30 is for sending out three primary colors laser.Primaries can be feux rouges, green light and blue light.Specifically, the
One light portion 30 includes at least two output sections 300, and each output section 300 exports three primary colors laser.Each output section 300 is defeated together
Go out three kinds of primary colors laser, 300 output light of each output section is incident on closing light portion 33 together, this contributes to form energy and spectrum point
The white light of cloth evenly.In the specific implementation, the quantity of output section 300 may be set according to actual conditions, illustratively, can be with
Including three or four output sections either other quantity, do not limited in present embodiment.In addition, being embodied
When, output section 300 continuously can export three kinds of primitive color lights simultaneously or output section 300 can be according to default sequential in turn
Three kinds of primitive color lights are exported, can be accordingly arranged according to demand in practical applications.
Second light portion 31 is for sending out laser irradiation to wavelength conversion section 32.Swash specifically, the second light portion 31 includes output
The output section 310 of light exports laser by output section 310.
Optionally, output section 300 and output section 310 can be optical fiber or laser.
Preferably, the first light portion 30 further includes being correspondingly arranged with output section 300, sharp for exporting output section 300
The optical module 301 of light collimation.Output light is collimated by optical module 301, keeps optical propagation direction parallel, light energy concentrate and
Uniformly.
Second light portion 31 further includes laser alignment be correspondingly arranged with output section 310, for exporting output section 310
Optical module 311.Output light is collimated by optical module 311, keeps optical propagation direction parallel, light energy concentrate and it is uniform.
In the specific implementation, optical module 301, optical module 311 may include lens, prism, diaphragm or other light
Element is learned, also all in the scope of the present invention.
At least one primitive color light is generated after the laser irradiation that wavelength conversion section 32 is sent out by the second light portion 31.Specifically, can
Wavelength conversion section 32 is set to generate a kind of primitive color light, the phase that the primitive color light chromaticity coordinates of the generation is exported with the first light portion under light illumination
Primitive color light chromaticity coordinates is answered to have deviation, generating the primaries that light is sent out with the first light portion by the wavelength conversion section 32 converges, energy
The ratio of each primitive color light in primaries is enough adjusted, and then the colour gamut of light source output light can be adjusted.Alternatively, wavelength convert can be made
It includes two kinds of primitive color lights that portion 32 generates under light illumination, three originals sent out by the wavelength conversion section 32 generation light and the first light portion
Coloured light converges, and can adjust the ratio of each primitive color light in primaries, and then adjust the gamut range of light source output light.In reality
Above-mentioned each toning scheme can accordingly be selected according to demand in.
Preferably, referring to FIG. 3, wavelength conversion section 32 can be arranged including：After the laser irradiation sent out by the second light portion 31
Generate the Wavelength changing element 320 of at least one primitive color light；It guides and is incident on after the light that Wavelength changing element 320 generates is collimated
The optical module 321 in closing light portion 33.Wavelength changing element 320 sends out light under light illumination, and optical module 321 collimates the light into, makes
Optical propagation direction is parallel, and light energy is concentrated and uniform, and is incident on closing light portion 23.
Optionally, fluorescent material can be used in Wavelength changing element 320, and fluorescent material can be ceramic fluorescent material, crystal
The fluorescent material either fluorophor made of organic gel or inorganic glue mixed fluorescent powder, but not limited to this, can also be other
The wavelength conversion material of type, all in the scope of the present invention.Optical module 321 may include lens, prism, diaphragm or
Other optical elements, also all in the scope of the present invention.
Closing light portion 33 is for converging the three primary colors laser that the first light portion 30 is sent out and the light that wavelength conversion section 32 generates
And it exports.In the specific implementation, the light that the first light portion 30 exports can be set and the illumination that wavelength conversion section 32 is sent out is mapped to conjunction
Light portion 33, closing light portion 33 go out the light transmission that the first light portion 30 exports, the light reflection that closing light portion 33 sends out wavelength conversion section 32
Go out, the light that three primary colors laser and wavelength conversion section generate is converged and exports.
Optionally, light combination mirror can be used in closing light portion 33, the light transmission mistake that the light combination mirror used can send out the first light portion,
And wavelength conversion section can be generated light reflection and gone out.Or part plating reflection film glass, local transmission, office can be used in closing light portion 33
Portion is reflected, but not limited to this, other closing light elements can also be used, also all in the scope of the present invention.
In addition in the specific implementation, it can be designed according to light-source structure and accordingly arrange the position of each component and carry out light
Road is laid out.Illustratively, it can refer to shown in Fig. 3, the first light portion 30 and the second light portion 31 can be arranged side by side, the first light portion 30 goes out
It penetrates light and shines directly into closing light portion 33.This light source further includes reflecting element 34, and the light of the second light portion 31 output is incident on reflective member
Part 34, reflecting element 34 reflect light to wavelength conversion section 32.The illumination that wavelength conversion section 32 is sent out be mapped to closing light portion 33 and by
It reflects, the light of the first light portion 30 output is incident on closing light portion 33 and is transmitted out.It is understood that in other embodiment
In may be used other light path layouts and carry out light path layout and use other optical elements, also all in the scope of the present invention
It is interior.
As can be seen that the laser light source that present embodiment provides, wavelength conversion section can generate at least one primitive color light, pass through
The light that wavelength conversion section generates can adjust the ratio of corresponding primitive color light in the three primary colors laser that the first light portion is sent out, and then adjust
The gamut range of light source output light can make output light meet standard color gamut range, and need not carry out compared with prior art
Color management, light utilization efficiency are high.
In the third embodiment, referring to FIG. 4, the laser light source includes the first light portion 40, the second light portion 41, wave
Long converter section 42 and closing light portion 43.
First light portion 40 is for sending out three primary colors laser.Primaries can be feux rouges, green light and blue light.Specifically, the
One light portion includes at least three output sections, and each output section exports a kind of primary colors laser, at least three included outputs
Portion can export primaries.In the specific implementation, exporting the output section quantity of each primitive color light can be flexibly arranged, can be with
Accordingly it is arranged according to white light light source power.It is to include three with the first light portion 40 to export in laser light source shown in Fig. 4
Illustrate for portion 400.
In the specific implementation, can be arranged each output section simultaneously output light, or may also set up each output section according to it is default when
Sequence is sequentially output light, can accordingly be arranged according to demand in practical applications.
Second light portion 41 is for sending out laser irradiation to wavelength conversion section 42.Swash specifically, the second light portion 41 includes output
The output section 410 of light exports laser by output section 410.
Optionally, output section 400 and output section 410 can be optical fiber or laser.
Preferably, the first light portion 40 further includes being correspondingly arranged with output section 400, sharp for exporting output section 400
The optical module 401 of light collimation.Output light is collimated by optical module 401, keeps optical propagation direction parallel, light energy concentrate and
Uniformly.
Second light portion 41 further includes laser alignment be correspondingly arranged with output section 410, for exporting output section 410
Optical module 411.Output light is collimated by optical module 411, keeps optical propagation direction parallel, light energy concentrate and it is uniform.
In the specific implementation, optical module 401, optical module 411 may include lens, prism, diaphragm or other light
Element is learned, also all in the scope of the present invention.
At least one primitive color light is generated after the laser irradiation that wavelength conversion section 42 is sent out by the second light portion 41.Specifically, can
Wavelength conversion section 42 is set to generate a kind of primitive color light, the phase that the primitive color light chromaticity coordinates of the generation is exported with the first light portion under light illumination
Primitive color light chromaticity coordinates is answered to have deviation, generating the primaries that light is sent out with the first light portion by the wavelength conversion section 42 converges, energy
The ratio of each primitive color light in primaries is enough adjusted, and then the colour gamut of light source output light can be adjusted.Alternatively, wavelength convert can be made
It includes two kinds of primitive color lights that portion 42 generates under light illumination, three originals sent out by the wavelength conversion section 42 generation light and the first light portion
Coloured light converges, and can adjust the ratio of each primitive color light in primaries, and then adjust the gamut range of light source output light.In reality
Above-mentioned each toning scheme can accordingly be selected according to demand in.
Preferably, referring to FIG. 4, wavelength conversion section 42 can be arranged including：After the laser irradiation sent out by the second light portion 41
Generate the Wavelength changing element 420 of at least one primitive color light；It guides and is incident on after the light that Wavelength changing element 420 generates is collimated
The optical module 421 in closing light portion 43.Wavelength changing element 420 sends out light under light illumination, and optical module 421 collimates the light into, makes
Optical propagation direction is parallel, and light energy is concentrated and uniform, and is incident on closing light portion 43.
Optionally, fluorescent material can be used in Wavelength changing element 420, and fluorescent material can be ceramic fluorescent material, crystal
The fluorescent material either fluorophor made of organic gel or inorganic glue mixed fluorescent powder, but not limited to this, can also be other
The wavelength conversion material of type, all in the scope of the present invention.Optical module 421 may include lens, prism, diaphragm or
Other optical elements, also all in the scope of the present invention.
Closing light portion 43 is for converging the three primary colors laser that the first light portion 40 is sent out and the light that wavelength conversion section 42 generates
And it exports.In the specific implementation, the light that the first light portion 40 exports can be set and the illumination that wavelength conversion section 42 is sent out is mapped to conjunction
Light portion 43, closing light portion 43 go out the light transmission that the first light portion 40 exports, the light reflection that closing light portion 43 sends out wavelength conversion section 42
Go out, the light that three primary colors laser and wavelength conversion section generate is converged and exports.
Optionally, light combination mirror can be used in closing light portion 43, the light transmission mistake that the light combination mirror used can send out the first light portion,
And wavelength conversion section can be generated light reflection and gone out.
Optionally, closing light portion 43 can be used part plating reflectance coating eyeglass, local transmission, local reflex, but not limited to this,
Other closing light elements can also be used, also all in the scope of the present invention.
In addition in the specific implementation, it can be designed according to light-source structure and accordingly arrange the position of each component and carry out light
Road is laid out.Illustratively, it can refer to shown in Fig. 4, the first light portion 40 and the second light portion 41 can be arranged side by side, the first light portion 40 goes out
It penetrates light and shines directly into closing light portion 43,.This light source further includes reflecting element 44, and the light of the second light portion 41 output is incident on reflective member
Part 44, reflecting element 44 reflect light to wavelength conversion section 42.The illumination that wavelength conversion section 42 is sent out be mapped to closing light portion 43 and by
It reflects, the light of the first light portion 40 output is incident on closing light portion 43 and is transmitted out.It is understood that in other embodiment
In may be used other light path layouts and carry out light path layout and use other optical elements, also all in the scope of the present invention
It is interior.
As can be seen that the laser light source that present embodiment provides, wavelength conversion section can generate at least one primitive color light, pass through
The light that wavelength conversion section generates can adjust the ratio of corresponding primitive color light in the three primary colors laser that the first light portion is sent out, and then adjust
The gamut range of light source output light can make output light meet standard color gamut range, and need not carry out compared with prior art
Color management, light utilization efficiency are high.
Illustratively, in a kind of specific example, the first light portion of laser light source sends out feux rouges, green light and blue light, and this is three former
Color laser, the second light portion send out blue laser.Wavelength conversion section sends out yellow light under blue light bombardment, and (yellow light can be by feux rouges and green light
It is mixed into).The three primary colors laser that first light portion is sent out and the yellow light that wavelength conversion section generates are converged and exported in closing light portion.It please join
Examine Fig. 5, Fig. 5 is the gamut range of light source output light in this specific example, and A points indicate that the first light portion sends out the color of feux rouges and sits in figure
Punctuate, B points indicate that the first light portion sends out the chromaticity coordinates point of green light, and C points indicate that wavelength conversion section sends out the chromaticity coordinates point of yellow light.It is yellow
After light converges with primary light, the chromaticity coordinates point of feux rouges is set to be moved to A ' points by A points, the chromaticity coordinates point of green light is moved to B ' by B points
Point, adjustment make the gamut range of light source output light reduce, disclosure satisfy that standard color gamut range.Referring to FIG. 6, Fig. 6 is that this is specific
The spectrum of light source output light in example, as seen from the figure, this light source output wavelength bands width substantially increase, and speckle can be avoided existing
As.
Correspondingly, the embodiment of the present invention also provides a kind of display device, including above-described laser light source.
Display device provided in this embodiment, the laser light source used, wavelength conversion section can generate at least one original
Coloured light, the light generated by wavelength conversion section can adjust the ratio of corresponding primitive color light in the three primary colors laser that the first light portion is sent out
Example, and then the gamut range of light source output light is adjusted, output light can be made to meet standard color gamut range, and compared with prior art
Color management need not be carried out, light utilization efficiency is high.
A kind of laser light source provided by the present invention and display device are described in detail above.It is used herein
Principle and implementation of the present invention are described for specific case, and the explanation of above example is only intended to help to understand this
The method and its core concept of invention.It should be pointed out that for those skilled in the art, not departing from this hair
, can be with several improvements and modifications are made to the present invention under the premise of bright principle, these improvement and modification also fall into power of the present invention
In the protection domain that profit requires.
Claims (10)
1. a kind of laser light source, which is characterized in that including the first light portion, the second light portion, wavelength conversion section and closing light portion；
First light portion is for sending out three primary colors laser；
Second light portion is for sending out laser irradiation to the wavelength conversion section；
At least one primitive color light is generated after the laser irradiation that the wavelength conversion section is used to be sent out by second light portion；
The closing light portion is used to converge the light that three primary colors laser and the wavelength conversion section generate and export.
2. laser light source according to claim 1, which is characterized in that first light portion includes that an output three primary colors swash
The output section of light, second light portion include the output section for exporting laser.
3. laser light source according to claim 1, which is characterized in that first light portion includes at least two output sections,
Each output section exports three primary colors laser, and second light portion includes the output section for exporting laser.
4. laser light source according to claim 1, which is characterized in that first light portion includes at least three output sections,
Each output section exports a kind of primary colors laser, and second light portion includes the output section for exporting laser.
5. according to claim 2-4 any one of them laser light sources, which is characterized in that first light portion further includes and exports
The optical module of laser alignment that portion is correspondingly arranged, for exporting output section, second light portion further include and output section
The optical module of laser alignment being correspondingly arranged, for exporting output section.
6. according to claim 2-4 any one of them laser light sources, which is characterized in that the output section is optical fiber or laser
Device.
7. laser light source according to claim 1, which is characterized in that the wavelength conversion section includes：
The Wavelength changing element of at least one primitive color light is generated after laser irradiation that second light portion is sent out；
The optical module in the closing light portion is incident in guiding after the light that the Wavelength changing element generates is collimated.
8. laser light source according to claim 1, which is characterized in that the light and the wavelength of first light portion output
The illumination that converter section is sent out is mapped to the closing light portion, and the closing light portion goes out the light transmission that first light portion exports, the conjunction
Light portion goes out the light reflection that the wavelength conversion section is sent out, and the light that three primary colors laser and the wavelength conversion section generate is converged
It closes and exports.
9. laser light source according to claim 8, which is characterized in that further include reflecting element, first light portion and institute
It states the second light portion to be arranged side by side, the light of second light portion output is incident on the reflecting element, and the reflecting element is anti-by light
It is mapped to the wavelength conversion section.
10. a kind of display device, which is characterized in that including claim 1-9 any one of them laser light sources.
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