CN108279548A - Optical projection system - Google Patents
Optical projection system Download PDFInfo
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- CN108279548A CN108279548A CN201710010618.XA CN201710010618A CN108279548A CN 108279548 A CN108279548 A CN 108279548A CN 201710010618 A CN201710010618 A CN 201710010618A CN 108279548 A CN108279548 A CN 108279548A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2013—Plural light sources
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/206—Control of light source other than position or intensity
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Optics & Photonics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Projection Apparatus (AREA)
Abstract
A kind of optical projection system includes first light source, second light source, colour gamut judgment module, light source controller and optic modulating device.The first light source is used to send out the primary lights for modulation image, and the primary lights can be used in modulating the image in the first gamut range, the second light source, for sending out the supplement light for widening the colour gamut that the first light source sends out at least one of primary lights light；The colour gamut judgment module is used to receive image data and judge according to described image data the gamut range of image to be displayed, and exports control signal according to the gamut range；For receiving the control signal, and the open and close of the first light source and the second light source are controlled according to the control signal, so that the gamut range that first light source and the light of second light source outgoing can be modulated meets the gamut range of the image to be displayed；The optic modulating device is used to carry out image modulation to the primary lights and the supplement light to generate the projected light needed for image to be displayed.
Description
Technical field
The present invention relates to projection art more particularly to a kind of optical projection systems.
Background technology
Existing optical projection system is widely used in the fields such as movie theatre, education, TV, and optical projection system uses light tune according to it
The type of device processed can be divided into DMD (Digital Micromirror Device), LCOS (Liquid Crystal on
Silicon), LCD (Liquid Crystal Display) etc., can be divided into one chip, biplate according to the quantity of optic modulating device
Formula and three-chip type system.In terms of the light source of optical projection system, traditional light source includes the bulb sources such as UHP, xenon lamp, at present gradually
What is grown up has the pure laser light source of LED light source, RGB and LASER Excited Fluorescence powder light source, the latter to may be considered with semiconductor
Light source based on luminescent device.It is limited to etendue, the optical projection system of LED light source, luminance shortage is outstanding in many fields
It is limited to the higher movie theatre applications of brightness requirement.Comparison differentiation common at present is RGB laser light sources and laser
Phosphor source, RGB laser light sources have the advantage that excitation purity is high, colour gamut is wide, are generally capable of up to REC2020 gamut standards,
But its speckle issue is insoluble knotty problem, and speckle issue, visual performance is not present in the light source of LASER Excited Fluorescence powder
It is good, DCI standard is generally capable of up in terms of colour gamut.For most situations of practical viewing image, DCI colour gamuts are sufficient
It is enough.It can imagine in this way, the image of shooting comes from nature, life periphery etc., and why we are it can be seen that object has
Certain color, comes from the spectrum of its reflection, and the spectrum generally reflected all can be the more continuous, light with one fixed width
Spectrum, therefore the color of object can all be fallen within DCI colour gamuts, unless there is a situation where such：Capture apparatus directly has taken pure
The light beam of laser, for example, the green laser beam of 532nm and 638nm red laser beam, at this time DCI colour gamuts can not restore this two
The intrinsic color of kind laser beam, and this is also considered as the place that laser fluorescence light source is not so good as the pure laser light sources of RGB, therefore such as
What becomes one so that the characteristics of laser fluorescence light source also can be with exceeding the colour gamut of DCI, while being able to maintain that its specular removal again
A challenging project.
Existing pure laser projection can realize the big gamut range of REC2020, and the projector of laser fluorescence powder technology
Gamut range be DCI709, although most colors are in DCI gamut ranges in nature, in specific condition
Under, for example when showing the color of pure laser, can be located at except DCI colour gamuts, the projector of existing laser fluorescence powder technology is aobvious
When showing the color, it can make to show beyond the color except DCI colour gamuts not true to nature.
With the development of Color Laser Projection Technology, the high projected picture of fidelity also chases the one of projection products as consumer
A reference standard.The gamut range of existing laser fluorescence powder technology meets color conventional in general nature circle and shows, but right
Can be except DCI colour gamuts, if shown using DCI colour gamuts in special color of image, the color except DCI colour gamuts
It can only be shown with the color on DCI gamut boundaries, however different colour-differences can not just embody.It is final not exist
Color display distortion within DCI gamut ranges.
Invention content
To solve the technical issues of prior art optical projection system cannot show specific colour gamut, the present invention, which provides one kind, to be had
Effect widens the optical projection system of colour gamut.
A kind of optical projection system comprising：
First light source, for sending out the primary lights for modulation image, the primary lights can be used in modulating the first colour gamut
Image in range；
Second light source, for sending out the supplement for widening the colour gamut that the first light source sends out at least one of primary lights light
Light, the primary lights that the first light source is sent out can be used in modulating the second colour gamut model with the supplement light according to preset ratio outgoing
Enclose interior image；
Colour gamut judgment module, for receiving image data and judging the colour gamut model of image to be displayed according to described image data
It encloses, and control signal is exported according to the gamut range；
Light source controller, for receiving the control signal, and according to the control signal control the first light source and
The open and close of the second light source, so that the gamut range that first light source and the light of second light source outgoing can be modulated is full
The gamut range of the foot image to be displayed；And
Optic modulating device, for carrying out image modulation to the primary lights and the supplement light to generate image to be displayed institute
The projected light needed.
Compared with prior art, in the optical projection system, it is described to widen that the second light source can send out supplement light
The colour gamut of optical projection system, the colour gamut judgment module judge the gamut range of image to be displayed according to image data, and according to institute
Gamut range output control signal is stated to control the open and close of the first light source and the second light source, the light modulation
Device carries out image modulation to generate the projected light needed for projected image at least two color of light and the supplement light, by
The supplement light for the colour gamut for widening the optical projection system can be sent out in the second light source, the optic modulating device modulates the benefit
It fills light and generates projected light and so that the colour gamut of projected image is effectively widened, so as to improve picture color distortion phenomenon, thus it is described
The gamut range of optical projection system is wider, picture color is true to nature, display effect is preferable.
Description of the drawings
Fig. 1 is the block diagram of the optical projection system of first embodiment of the invention.
Fig. 2 is a kind of structural schematic diagram of the light-emitting device of embodiment of optical projection system shown in Fig. 1.
Fig. 3 is the structural schematic diagram of the light-emitting device of the embodiment of optical projection system another kind shown in Fig. 1.
Fig. 4 is the structural schematic diagram of colour wheel shown in Fig. 1.
Fig. 5 is the gamut range schematic diagram of optical projection system shown in Fig. 1.
Fig. 6 is the light-emitting device of optical projection system shown in Fig. 1 and the driver' s timing schematic diagram of spatial light modulator.
Fig. 7 is the block diagram of the optical projection system of second embodiment of the invention.
Fig. 8 is the colour wheel structural schematic diagram of the optical projection system of second embodiment of the invention.
Fig. 9,10 and 11 be the optical projection system of second embodiment of the invention light source and spatial light modulator driving when
Sequence schematic diagram.
Figure 12 is a kind of colour wheel structural schematic diagram of change embodiment of second embodiment of the invention.
Main element symbol description
Optical projection system 100,200
Light-emitting device 110
Light source controller 150,250
Optic modulating device 160
Spatial light modulator 261,262
Colour gamut judgment module 170,270
Projection lens 180
Light processing element 190
First light source 120,220
Second light source 130,230
Colour wheel 140,240
Sectional area 141,241
Non-spoke area 141a, 241a
Spoke area 142,242
Part spoke area 141b, 241b
First gamut range F1
Second gamut range F2
Following specific implementation mode will be further illustrated the present invention in conjunction with above-mentioned attached drawing.
Specific implementation mode
First embodiment
Referring to Fig. 1, Fig. 1 is the structural schematic diagram of the optical projection system 100 of first embodiment of the invention.The projection system
System 100 includes light-emitting device 110, light source controller 150, light processing element 190, optic modulating device 160, colour gamut judgment module
170 and projection lens 180.The light-emitting device 110 includes first light source 120, second light source 130 and colour wheel 140.
The first light source 120 is for sending out primary lights, and the primary lights are used for modulation image, and the primary lights can
For modulating the image in the first gamut range.The colour wheel 140 is located at where the primary lights that the first light source 120 is sent out
In light path, the colour wheel 140 includes at least two sectional areas, and at least two sectional area receives primary lights and right
Conversion light should be projected, wherein conversion light includes at least two color of light.The second light source 130 widens described first for sending out
Light source 120 sends out the supplement light of the colour gamut of at least one of primary lights light, the primary lights and institute that the first light source 120 is sent out
Supplement light is stated to can be used in modulating the image in the second gamut range according to preset ratio outgoing.The colour gamut judgment module 170
For receiving image data and judge the gamut range of image to be displayed according to described image data, and according to the colour gamut model
Enclose output control signal.The light source controller 150 is for receiving the control signal and controlling institute according to the control signal
The open and close of first light source 120 and the second light source 130 are stated, so that first light source 120 and second light source 130 are emitted
The gamut range that can modulate of light meet the gamut range of the image to be displayed.The light processing element 190 may include
Collection lens system, relay lens system etc., at least two face that the light processing element sends out the light-emitting device
Coloured light and the supplement light carry out even light and/or change light path, and at least two color of light and the supplement light into
Row collection, diffusion, shaping etc. are so that at least two color of light is irradiated to institute with the supplement light according to default spot size
It states on optic modulating device 160.The optic modulating device 160 is used for according to described image data respectively at least two color
Light carries out image modulation to generate the projected light needed for projected image with the supplement light.It is appreciated that in change embodiment
In, the first light source 120 can directly send out the primary lights of at least two colors, to which the colour wheel 140 can be omitted.
The first light source 120 is excitation light source, and primary lights are sent out under the control of the light source controller 150.Institute
The side of the colour wheel 140 can be set to by stating first light source 120.The first light source 120 can be blue-light source, send out indigo plant
Color base coloured light, it will be appreciated that the first light source 120 is not limited to blue-light source, may be red light source, green
Light source, ultraviolet source etc..In present embodiment, the first light source 120 includes blue laser, is made for sending out blue laser
For the primary lights, it will be understood that the first light source 120 may include one, two or more blue lasers, laser
The quantity of device can be selected according to actual needs.
The second light source 130 is supplement light source, and supplement light is sent out under the control of the light source controller 150.Such as
Shown in Fig. 2, in one embodiment, the second light source 130 can be set to the first light source 120 of the colour wheel 140
The side at place, that is, the first light source 120 is located at the same side of the colour wheel 140, the colour wheel 140 with second light source 130
For transmission-type colour wheel, light that the first light source 120 is sent out with second light source 130 via projected again after the colour wheel 140 with
The optic modulating device 160 is provided.As shown in figure 3, in another embodiment, the second light source 130 can be set to
The opposite side of the first light source 120 of the colour wheel 140, that is, the first light source 120 is located at institute with second light source 130
The not homonymy of colour wheel 140 is stated, the colour wheel 140 is also transmission-type colour wheel, and the light that the first light source 120 is sent out is via described
It is provided after colour wheel 140 and arrives the optic modulating device 160, the light that the second light source 130 is sent out is also provided to the light modulation
Device 160 but not via the colour wheel 140.
The second light source 130 may include an at least laser, for sending out the laser of at least one color as institute
State supplement light.As shown in Figure 2 and Figure 3, the second light source 130 may include first laser device 131 and second laser 132,
The first supplement light and the second supplement light are sent out respectively, and first supplement light is different from the second supplement light color.But
It changes in embodiment, the second light source 130 can also only include a kind of laser, only send out a kind of supplement light of color；
Alternatively, the second light source 130 can also include three kinds of lasers, three kinds of color of light supplement lights are sent out.It is appreciated that described the
The type of the laser of two light sources 130 or the number of colors of supplement light can determine according to the gamut color that widen is needed, such as
It needs to widen red colour gamut, the second light source 130 may include that red laser sends out red supplement light, such as need to widen green
Color colour gamut, the second light source 130 send out green supplement light including green laser, as needed to widen red colour gamut and green
Colour gamut, the second light source 130 may include that red laser sends out red supplement light, further include that green laser sends out green
Supplement light.
In present embodiment, the first light source 120 is blue laser, the first laser device 131 and second laser
Device 132 can be respectively red laser and green laser.The quantity of the first laser device 131 and second laser 132
It may be one, two or more, can specifically be selected according to actual needs.
Referring to Fig. 4, Fig. 4 is the structural schematic diagram of colour wheel 140 shown in Fig. 1.The colour wheel 140 it is peripherally disposed
At least two sectional areas 141, and the colour wheel 140 can be rotated along 140 center of the colour wheel so that described at least two
Sectional area 141 is periodically in the light path where the primary lights that the first light source 120 is sent out, to described at least two
A sectional area 141 periodically projects at least two color of light.It is appreciated that at least two sectional area 141
Size can be set as identical or different according to actual needs.
Further, the primary lights are radiated at when the hot spot formed on the colour wheel crosses over two sectional areas and are irradiated
The region arrived is spoke area, and the region in the sectional area except spoke area is non-spoke area.Two neighboring segment identifier as a result,
Two parts spoke area 141b between the non-spoke area 141a in domain 141 constitutes the spoke area 142.
In present embodiment, the colour wheel 140 includes three sectional areas 141 along the circumferential direction set gradually, respectively
For the first sectional area B, the second sectional area R and third sectional area G, the first sectional area B, the second sectional area R
And the third sectional area G includes the part spoke area 141b of non-spoke area 141a and neighbouring another sectional area, because of institute
Stating colour wheel 140, also correspondence is divided into three non-spoke area 141a and three spoke areas between the non-spoke area 141a
142.The first sectional area B is for projecting the first color of light, such as blue light, when the first light source 120 is blue-light source
When, scattering material can be provided on the first sectional area B, the light that the first light source 120 is sent out can be via described
It is projected after first sectional area B scatterings.It is described when the first light source 120 is ultraviolet source in changing embodiment
First wave length transition material can be provided on first sectional area B, the light that the first light source 120 is sent out can excite described
First wave length transition material and generate first color of light.
The second sectional area R is for projecting the second color of light, such as red light, can be on the second sectional area R
It is provided with second wave length transition material, such as red fluorescence powder, the light that the light source 120 is sent out can excite the second wave length to turn
Conversion materials and generate second color of light, i.e. red light；The third sectional area G is such as green for projecting third color of light
Coloured light, third wavelength conversion material, such as green emitting phosphor can be provided on the third sectional area G, and the light source 120 is sent out
The light gone out can excite the third wavelength conversion material and generate the third color of light, i.e. green light.
It is appreciated that the colour wheel 140 or reflective colour wheel or half-transmission half-reflection type colour wheel are (such as part point
Section region is regional transmission, and another part sectional area is reflector space), the first light source 120 and the second light source 130
With the light path of the colour wheel, position relationship different type color can also be just repeated no more herein according to actual needs design adjustment
Wheel and the first light source 120 and the light path of the second light source 130, position relationship.
The optic modulating device 160 is located at the light that the light that the colour wheel 140 is sent out and the second light source 130 are sent out
In light path, the optic modulating device 160 also receives image data DATA and modulates the colour wheel 140 according to image data DATA and sends out
The light that the light gone out is sent out with the second light source 130 is to generate projected light.The optic modulating device 160 is spatial light modulator,
It such as can be DMD optical modulators but be not limited to DMD optical modulators.The projection lens 180 receives the hair of the optic modulating device 160
The projected light gone out carries out Projection Display.
The colour gamut judgment module 170 is also used for receiving described image data DATA, and according to described image data DATA
Judge the gamut range of the corresponding image to be displayed of described image data, and judges the corresponding colour gamuts of described image data DATA
Whether range falls in the first gamut range F1.Wherein, as shown in figure 5, the first gamut range F1 can be described
The gamut range that the light of at least two colors can be shown, it is specific such as gamut range DCI709 such as DCI gamut ranges, specifically,
In one embodiment, the light of at least two color may include the blue laser excitation institute of the first light source 120
It states the red on colour wheel 140, the red fluorescence that green wavelength transition material generates and green fluorescence and the colour wheel 140 is saturating
The blue laser for the first light source 120 penetrated, scatter or reflected.Due in the light of at least two color, the red
Fluorescence is the acquisition of excitation wavelength transition material with green fluorescence, rather than the laser of pure color, therefore, at least two color
Light in the colour gamut of red light and green light it is relatively narrow, be only capable of showing the gamut range (i.e. the first gamut range) of DCI709, and institute
The blue light for stating colour wheel injection is the blue laser that sends out of the first light source 120, thus be generally not present blue light colour gamut compared with
Narrow problem, therefore in present embodiment, the second light source 130 sends out including red laser with green laser red respectively
The supplement light of color laser and green laser widens colour gamut.
After being set the second light source 130, the supplement light that the second light source 130 is sent out can be sent out more than described
The light of one gamut range F1, specifically, the supplement light that the second light source 130 is sent out can show REC gamut ranges, such as colour gamut
Range REC2020, the REC gamut ranges can be than the first gamut range F1 wide, such as the gamut range of REC2020.It is fixed
Justice the second gamut range F, the second gamut range F2 is the REC gamut ranges other than the first gamut range F1, and is
The gamut range that the supplement light can be shown.
It is appreciated that the colour gamut judgment module 170 can analyze each primary color image data of described image data DATA
Grayscale value calculate the color gamut value after each primary color image data mixing, to judging that the color gamut value is fallen first still
Second gamut range.The colour gamut judgment module 170 can be integrated in the image data processing module of the optical projection system 100
In, described image data processing module receives described image data DATA and to described image data DATA decompress etc.
Reason, and the grayscale value of primary color image data is based further on to calculate the color gamut value to judge the colour gamut of the image to be displayed
Range.
It is appreciated that the supplement light that the primary lights that send out of the first light source 120 and the second light source 130 are sent out is pre-
If ratio can be set according to actual needs, the preset ratio can be understood as the first light source in a colour wheel period
The light quantity ratio for the supplement light that 120 primary lights sent out and the second light source 130 are sent out, specifically, the preset ratio can
It is adjusted with the colour gamut judging result according to image data, as the color gamut value of most pixel in described image data is fallen the
In two gamut ranges, then the ratio for the supplement light that the second light source 130 is sent out can be turned up.
If the colour gamut judgment module 170 judges that the gamut range of image to be displayed is fallen according to described image data DATA
In first gamut range F1, the colour gamut judgment module 170 can send out first control signal to the light source controller 150,
The light source controller 150 controls the first light source 120 according to the first control signal and opens and control second light
Source 130 is closed, and the optic modulating device 160 modulates the light that the colour wheel 140 is sent out according to described image data and generates projected light.
If the colour gamut judgment module 170 judges the gamut range of image to be displayed extremely according to described image data DATA
For small part in the second gamut range F, the colour gamut judgment module 170 can send out second control signal to the light source control
Device 150 processed, the light source controller 150 control the first light source 120 and second light according to the second control signal
Source 130 is opened, the optic modulating device 160 according to described image data modulate respectively light that the colour wheel 140 is sent out with it is described
Supplement light generates projected light.It is appreciated that the light that the colour wheel 140 is sent out includes the conversion light (such as yellow stimulated light) and does not have
There is the light (such as blue primary color light) by conversion.In present embodiment, the light source controller 150 is according to the second control letter
Number control first light source 120 is opened with 130 timesharing of second light source, and the optic modulating device 160 is according to described image data
The light that colour wheel 140 described in time division modulation projects generates projected light with the supplement light.
Specifically, as shown in Fig. 4 and Fig. 6, the timing definition that the colour wheel 140 rotates a circle is a colour wheel cycle T, often
In a colour wheel cycle T, it is non-spoke phase T1, each segment identifier that the non-spoke area 141a of each sectional area 141, which corresponds to the period,
Domain 141 receives the light of the first light source 120 in the non-spoke phase T1 and projects a kind of corresponding color of light, two neighboring non-
Period between spoke phase T1 is the spoke phase T2 in the corresponding spoke area 142.Each colour wheel cycle T may include at least two
A non-spoke phase T1 and at least two spoke phase T2, in present embodiment, each colour wheel cycle T include three non-spoke phase T1 with
Three spoke phase T2, non-spoke phase T2 are arranged alternately with the spoke phase T1.
Each the corresponding image data of colour wheel cycle T is a frame image data, and a frame image data generally includes three
Subframe primary color image data.It is appreciated that the primary colours refer to red, green and blue, the three subframes primary color image data are
Red sub-frame image data, green sub-frame image data and blue subframes image data.
If the colour gamut judgment module 170 judges a subframe primary color image data pair in the three subframes primary color image data
The gamut range for the image to be displayed answered is fallen in the first gamut range F1, the three subframes primary color image data respectively with it is described
Three non-spoke phases, T1 was corresponding, and the colour gamut judgment module 170 sends out control signal to the light source controller 150 to pass through
The first light source 120 is controlled by the light source controller 150 and opens and control second light in corresponding non-spoke phase T1
Source 130 is closed in corresponding non-spoke phase T1, and the colour wheel 140 receives the first light source 120 in corresponding non-spoke phase T1
The light that sends out and the light for projecting the corresponding subframe primary color image data, the optic modulating device 160 is in the corresponding non-spoke phase
T1 modulates the light that the colour wheel is sent out according to the subframe primary color image data and generates projected light.Further, first light
Source 120 can be closed in the spoke phase T2 of the colour wheel cycle T, and the second light source 130 is then also in the spoke phase T2
Closed state, that is, if described image data are fallen in the first gamut range F1, the first light source 120 can be in the colour wheel
Non-spoke phase T1 of cycle T opens, non-spoke phase T1 of the second light source 130 in the colour wheel cycle T and spoke phase T2
It is turned off.
If the colour gamut judgment module 170 judges a subframe primary color image data pair in the three subframes primary color image data
The gamut range for the image to be displayed answered falls in the second gamut range F (such as red sub-frame image data or green sub-frame image
The corresponding gamut range of data is fallen in the second gamut range F), the colour gamut judgment module 170 sends out control signal to described
Light source controller 150 is opened to control the first light source 120 via the light source controller 150 in corresponding non-spoke phase T1
It opens and controls the second light source 130 and close T1 in the corresponding non-spoke phase, the colour wheel 140 sends out the corresponding subframe base
The color of light (such as red light, green light include other red or green light component color of light) of color image data, the light
Modulating device 160 modulates the light production that the colour wheel 140 is sent out according to the subframe primary color image data in non-spoke phase T1
Raw at least partly projected light；The control signal that the colour gamut judgment module 170 is sent out also is controlled via the light source controller 150
The second light source 130 is closed and controlled to the first light source 120 the one of the colour wheel cycle T in corresponding spoke phase T2
Spoke phase T2 opens, the second light source 130 send out the corresponding subframe primary color image data supplement light (such as red laser or
Green laser), the optic modulating device 160 modulates the supplement in spoke phase T2 according to the subframe primary color image data
Light generates another part projected light.The projection lens 180 sequentially the part projected light according to the non-spoke phase T1 and institute
State spoke phase T2 another part projected light show the corresponding projected image of the subframe primary color image data (such as red image or
Green image).
As it can be seen that the colour gamut of the supplement light sent out due to the second light source 130 is wider, can show beyond first color
The color of the first gamut range F2 of domain range F1, the optic modulating device 160 modulate the projected light projected after the supplement light
Colour gamut it is wider, to show the color of the first gamut range F2 beyond the first gamut range F1, more effectively
Reduction described image data color so that the color of projected image is more true to nature.
If the colour gamut judgment module 170 judges two subframe primary color image data in the three subframes primary color image data
Corresponding gamut range falls in the second gamut range F that (such as red sub-frame image data is corresponding with green sub-frame image data
Gamut range is fallen in the second gamut range F), the colour gamut judgment module 170 sends out control signal to the light source controller
150 to via the light source controller 150 control the first light source 120 open in corresponding two non-spoke phases T1 and
It controls the second light source 130 to close in corresponding two non-spoke phases T2,140 sequence of the colour wheel sends out the corresponding subframe
The color of light (such as red light, green light include other red or green light component color of light) of primary color image data, it is described
Optic modulating device 160 modulates the colour wheel in corresponding two non-spoke phases T1 according to described two subframe primary color image data
140 light sent out generate at least partly projected light；The control signal that the colour gamut judgment module 170 is sent out is also via the light source
Controller 150 controls the first laser device that the first light source 120 closed and controlled the second light source 130 in spoke phase T2
131 open in the first spoke phase T2 of the colour wheel cycle T, and the second light source 130 sends out the first supplement light (such as red laser
R1), the optic modulating device 160 is mended in the first spoke phase T2 according to subframe primary color image data modulation described first
It fills light and generates another part projected light.The control signal that the colour gamut judgment module 170 is sent out is also via the light source controller
The second lasers 132 of the 150 control second light sources 130 are opened in the second spoke phase T2 of the colour wheel cycle T, and described the
Two light sources 130 send out the second supplement light (such as green laser G1), and the optic modulating device 160 is in the second spoke phase T2 foundations
The subframe primary color image data modulate second supplement light and generate another part projected light.The projection lens 180 is sequentially
Institute is shown according to the part projected light of the non-spoke phase T1 and two parts projected light of first and second spoke phase T2
State the corresponding projected image of two subframe primary color image data.
As it can be seen that when the corresponding gamut range of two subframe primary color image data is fallen in the second gamut range F, described
Two light sources 130 send out the first supplement light and the second supplement light, 160 timesharing of the optic modulating device in different spoke phase T2 timesharing
First supplement light and the second supplement light are modulated according to described two subframe primary color image data, due to the second light source
The colour gamut of 130 first and second supplement light sent out is wider, can show the second colour gamut beyond the first gamut range F1
The color of range F, the colour gamut that the optic modulating device 160 modulates the projected light projected after the supplement light is wider, to also may be used
To show the color of the second gamut range F beyond the first gamut range F1, described image data are more effectively restored
The color of DATA so that the color of projected image is more true to nature.
Compared with prior art, in the optical projection system 100, the second light source 130 can send out supplement light to open up
The colour gamut of the wide optical projection system 100, the colour gamut judgment module 170 judge the color of image to be displayed according to image data DATA
Domain range, and control signal is exported to control the unlatching of the first light source 120 and the second light source 130 according to judging result
With closing, the light sent out to the colour wheel 140 to the optic modulating device 160 is with supplement light progress image modulation to produce
Projected light needed for raw projected image, the supplement light that the second light source 130 is sent out can be to the colour gamut of the optical projection system 100
Effectively widened.
The colour gamut judgment module 170 judges gamut range and the described two light sources of control according to described image data DATA
120 and 130 open and close can also select to modulate at least two face according to the gamut range of described image data
Coloured light and any light in the supplement light, so that the gamut range of described image data DATA is filled with the light modulation
The light for setting 160 modulation is adapted, to be effectively improved picture color distortion phenomenon, the gamut range of the optical projection system 100 compared with
Width, picture color is true to nature, display effect is preferable.
Second embodiment
Fig. 7, Fig. 8 are please referred to, Fig. 7 is the block diagram of the optical projection system 200 of second embodiment of the invention, and Fig. 8 is
240 structural schematic diagram of colour wheel of the optical projection system 200 of second embodiment of the invention.The optical projection system of the second embodiment
It is similar with the optical projection system of first embodiment, that is to say, that above-mentioned most descriptions to the first embodiment are substantially
It can be used for the second embodiment, the difference of the two essentially consists in：The structure of colour wheel 240, the spatial light of optic modulating device
The driver' s timing of the quantity of modulator, light source and spatial light modulator is different.It is appreciated that following mainly for described the
The part that two embodiments are distinguished with first embodiment is described, and for second embodiment and first embodiment phase
Same part just repeats no more.
Specifically, as shown in figure 8, in the second embodiment, the colour wheel 240 includes along the circumferential direction setting gradually
Two sectional areas 241, respectively the first sectional area B and the second sectional area Y.The first sectional area B is for penetrating
Go out the first color of light, such as blue light, when the first light source 220 is blue-light source, can be set on the first sectional area B
It is equipped with scattering material, the light that the first light source 220 is sent out projects after being scattered via the first sectional area B；Work as institute
When to state first light source 220 be ultraviolet source, first wave length transition material can be provided on the first sectional area B, it is described
The light that first light source 200 is sent out can excite the first wave length transition material and generate first color of light, such as blue light.
The second sectional area Y is for projecting the second color of light, such as sodium yellow, and the can be provided on the second sectional area Y
Two wavelength conversion material, such as yellow fluorescent powder, the light that the first light source 220 is sent out can excite the second wave length conversion material
Expect and generate second color of light, is i.e. sodium yellow.
Further, in embodiment shown in Fig. 8, the first sectional area B, the second sectional area Y include
The part spoke area 241b of non-spoke area 241a and neighbouring another sectional area.Wherein, the first sectional area B and described the
Two parts spoke area 241b between the non-spoke area 241a of two-section region Y can be defined as a spoke area 242；Described
Other two part spoke area 241b between two-section region Y and the non-spoke area 241a of the first sectional area B can be with
It is defined as another spoke area 242.
Further, in the second embodiment, the optical projection system 200 includes two spaces optical modulator：First
Spatial light modulator 261 and second space optical modulator 261.Wherein, first spatial light modulator 261 can be used for foundation
The first subframe primary color image data modulation image in the three subframes primary color image data, the second space optical modulator
262 for according to second and the third subframe primary color image data modulation image modulated in the three subframes primary color image data.
According to shown in Fig. 9, in present embodiment, each colour wheel cycle T includes two non-spoke phase T1 and two spoke phases
T2.The three subframes primary color image data are corresponding with described two non-spoke phase T1 respectively, i.e., one of non-spoke phase T1
(such as the first non-spoke phase T1 corresponds to red sub-frame image data and green sub-frame picture number to corresponding two subframe primary color image data
According to), the colour wheel also sends out (the such as second segmentation of the corresponding color of light of described two sub-frame images data in the non-spoke phase T1
Region Y sends out sodium yellow), first spatial light modulator 261 is according to a corresponding subframe primary color image data (such as red sub-frame
Image data) it modulates the light that the colour wheel 240 sends out in the non-spoke phase T1 and generates projected light, the second space light modulation
Device 262 modulates the colour wheel according to another subframe primary color image data (such as green sub-frame image data) in same non-spoke phase T1
240 light sent out generate projected light.Another non-spoke phase T1 then with another subframe primary color image data (such as blue subframes picture number
According to) corresponding, the colour wheel 240 also sends out the corresponding color of another sub-frame images data in another non-spoke phase T1
Light (such as the first sectional area B sends out blue light), the second space optical modulator 262 is also according to another subframe primary colour picture
The light that the colour wheel 240 is sent out is modulated in another non-spoke phase T1 generate projected light as data.
It is appreciated that as shown in figure 9, if colour gamut judgment module 270 judges that the three subframes primary color image data are corresponding
The gamut range of image to be displayed is all fallen in the first gamut range F1, can be showed due to that need not pass through second light source 130
The corresponding gamut range of the three sub-frame images data, therefore in the three subframes primary color image data corresponding entire colour wheel week
In phase T, under the control of the control signal of the colour gamut judgment module 270 output to the light source controller 250, described second
Light source 230 can close always, and the first light source 220 can then be opened in non-spoke phase T1 and be closed in spoke phase T2.Its
In, being closed in spoke phase T2 in the first light source 220 can be to avoid the color being susceptible in spoke phase T2 unlatching
Wheel is simultaneously emitted by spoke effect caused by the light of two kinds of colors, and color of image is distorted caused by reducing spoke effect, certainly, when this
When the influence of kind of cross-color less or is not considered, the first light source 220 spoke phase T2 open be also can be with
's.
As shown in Figure 10, if the colour gamut judgment module 270 judges a subframe base in the three subframes primary color image data
The gamut range of the corresponding image to be displayed of color image data falls (such as red sub-frame image data pair in the second gamut range F
The gamut range answered is fallen in the second gamut range F), the colour gamut judgment module 270 sends out control signal via the light source
Controller 250 controls the first light source 220 and opens and control the second light source 230 right in corresponding non-spoke phase T1
Non-spoke phase T1 answered closes, and the colour wheel 240 sends out the color of light (red light of the corresponding subframe primary color image data；Or
Include other color of light of red light ingredient, such as sodium yellow), first spatial light modulator 261 is in the non-spoke phase T1
The light that the colour wheel 240 is sent out, which is modulated, according to the subframe primary color image data (such as green sub-frame image data) generates at least portion
Divide projected light, the second space optical modulator 262 (such as red according to another subframe primary color image data in non-spoke phase T1
Dice frame image data) light that sends out of the modulation colour wheel generates another part projected light.
Further, the control signal that the colour gamut judgment module 270 is sent out also is controlled via the light source controller 250
The second light source 230 is closed and controlled to the first light source 220 in one or two spoke phase T2 of the colour wheel cycle T
It is opened in one or two spoke phase T2 of the colour wheel cycle T, the second light source 230 sends out the corresponding subframe primary colour picture
As the supplement light (such as red laser) of data, the second space optical modulator 262 is in spoke phase T2 according to the subframe
Primary color image data modulate the supplement light and generate another part projected light.
The control signal that the colour gamut judgment module 270 is sent out also controls described first via the light source controller 250
Light source 220 is opened in another non-spoke phase T1 of colour wheel cycle T and controls the second light source 230 in another non-spoke
Phase T1 closes, and the colour wheel 240 sends out the corresponding color of light of another subframe primary color image data (such as blue subframes image data)
(such as blue light), the second space optical modulator 262 is in another non-spoke phase T1 according to another subframe primary colour picture
The light that the colour wheel 240 is sent out, which is modulated, as data (such as blue subframes image data) generates projected light.
As shown in figure 11, if the colour gamut judgment module 270 judges two subframes in the three subframes primary color image data
The gamut range of the corresponding image to be displayed of primary color image data falls (such as red sub-frame image data in the second gamut range F
Gamut range corresponding with green sub-frame image data is all fallen in the second gamut range F), the colour gamut judgment module 270 is sent out
Go out to control signal and control the first light source 220 via the light source controller 250 and is opened in corresponding first non-spoke phase T1
And the control second light source 230 is closed in the first non-spoke phase T1, the colour wheel 240 sends out corresponding described two sons
The color of light (such as sodium yellow comprising red light and green light component) of frame primary color image data, first spatial light modulator
261 the first non-spoke phase T1 according to the subframe primary color image data (such as green sub-frame image data) modulation as described in
The light that colour wheel 240 is sent out generates at least partly projected light, and the second space optical modulator 262 is in the first non-spoke phase T1
The light that the colour wheel 240 is sent out, which is modulated, according to another subframe primary color image data (such as red sub-frame image data) generates another portion
Divide projected light.
Further, the control signal that the colour gamut judgment module 270 is sent out also is controlled via the light source controller 250
The first light source 220 is closed in spoke phase T2 of the colour wheel cycle T to reduce spoke effect, and control second light
The first laser device (such as red laser) in source 220 opens in one or two spoke phase T2 of the colour wheel cycle T and sends out the
One supplement light, the second space optical modulator 262 modulate first supplement light (such as in one or two spoke phases T2
Red laser) and generate projected light.
Further, the control signal that the colour gamut judgment module 270 is sent out also is controlled via the light source controller 250
Make (one or two) spoke of second laser (such as green laser) in the colour wheel cycle T of the second light source 220
Phase T2 sends out the second supplement light (as green swashs different from the second non-spoke phase T1' unlatching of the first non-spoke phase T1
Light), first spatial light modulator 261 is in one or two spoke phase T2 of the colour wheel cycle T or different from described the
The second non-spoke phase T1' of one non-spoke phase T1 modulates institute according to another sub-frame images data (blue subframes image data)
The second supplement light is stated to generate projected light.In present embodiment, the colour gamut judgment module 270 also controls the second light source
230 second laser is opened at least one spoke phase T2 of the colour wheel cycle T and the partial period of the second non-spoke phase T1'
Inspire out the second supplement light (such as green laser), first spatial light modulator 261 at least one the colour wheel cycle T
The partial period of spoke phase T2 and the second non-spoke phase T1' are according to another sub-frame images data (blue subframes image data)
Second supplement light is modulated to generate projected light.It is appreciated that the first non-spoke phase T1 and the second non-spoke phase
T1' is two different non-spoke phases.
It is appreciated that in present embodiment, first supplement light is red laser R1, mainly in the spoke phase T2
Corresponding spatial light modulator (such as second space optical modulator 262) is provided, can ensure in this way first supplement light with
Light (such as red light and blue light) timesharing that the colour wheel 240 that the second space optical modulator 262 is modulated is sent out is modulated, is avoided
Sequential is chaotic；Second supplement light is green laser G1, can not be sent out with green light component in the colour wheel 240
Arbitrary period (i.e. spoke phase or the colour wheel do not send out non-spoke phase of the light with green light component) is provided to corresponding sky
Between optical modulator (such as the first spatial light modulator 261), can guarantee second supplement light (such as green laser) and institute in this way
It states light (such as green light) timesharing that the colour wheel that the first spatial light modulator 261 is modulated is sent out to be modulated, avoids sequential chaotic.
It is appreciated that in a kind of change embodiment of second embodiment, as shown in figure 12, the colour wheel 240
Two sectional areas can be respectively the first sectional area C and the second sectional area Y, and the first sectional area C can be carried
Hanced cyan fluorescent powder sends out cyan light, the i.e. mixed light of blue light and green light, and it is glimmering that the second sectional area Y can carry yellow
Light powder sends out sodium yellow.Accordingly, first spatial light modulator 261 can send out cyan in the first sectional area C
Light time, which according to the green sub-frame image data modulates the first sectional area C and sends out cyan light, generates projected light, and described the
Two spatial light modulators 262 can be when the first sectional area C sends out cyan light according to the blue subframes image data
It modulates the first sectional area C and sends out cyan light generation projected light.Specifically, before modulation, it needs green light being filtered,
Blue light and green light are filtered out respectively, and the first spatial light modulator is obtained by filtration green according to the modulation of green sub-frame image data
For coloured light to generate projected light, second space optical modulator modulates the blue light being obtained by filtration according to the blue subframes image data
To generate projected light.The second space optical modulator 262 is also when the second sectional area Y sends out sodium yellow, according to red
Dice frame image data modulates the sodium yellow and generates projected light, alternatively, simultaneously according to red sub-frame image data and green
Sub-frame images data modulate the sodium yellow and generate projected light.
In addition, in the above embodiment, first spatial light modulator 261 modulates the green sub-frame image data,
Red sub-frame image data described in 262 time division modulation of second space optical modulator and blue subframes image data.But
Change in embodiment, first spatial light modulator 261 can also green sub-frame image data described in time division modulation with it is red
Dice frame image data, the second space optical modulator 262 then modulate the blue subframes image data or described first
Green sub-frame image data described in spatial light modulator time division modulation and blue subframes image data, the second space light modulation
Device 262 then modulates described red sub-frame image data etc., however it is not limited to and it is above-mentioned, as long as can realize according to the three subframes primary colours
Image data time division modulation corresponds to the light that the colour wheel projects.
In the second embodiment and its change embodiment, the colour gamut judgment module 270 is according to image data
DATA judges the gamut range of image to be displayed, and exports control signal according to judging result to control the first light source 220
And the open and close of the second light source 230, to 261,262 pairs of at least two face of described two spatial light modulators
Coloured light and the supplement light carry out image modulation to generate the projected light needed for projected image, what the second light source 230 was sent out
Supplement light not only effectively widens the colour gamut of the optical projection system 200.The colour gamut judgment module 270 is according to described image
Data judge that gamut range sends out control signal and controls opening for described two light sources 220,230 via the light source controller 250
It opens and closes, can also select to modulate at least two color of light and institute according to the gamut range of described image data DATA
Any light in supplement light is stated, so that the gamut range of described image data DATA and the spatial light modulator 261,
The light of 262 modulation are adapted, and to be effectively improved picture color distortion phenomenon, the gamut range of the optical projection system is wider, draws
Face color is true to nature, display effect is preferable.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field is included within the scope of the present invention.
Claims (10)
1. a kind of optical projection system, it is characterised in that：The optical projection system includes：
First light source, for sending out the primary lights for modulation image, the primary lights can be used in modulating the first gamut range
Interior image；
Second light source, for sending out the supplement light for widening the colour gamut that the first light source sends out at least one of primary lights light,
The primary lights that the first light source is sent out can be used in modulating the second gamut range with the supplement light according to preset ratio outgoing
Interior image；
Colour gamut judgment module, for receiving image data and judging the gamut range of image to be displayed according to described image data,
And export control signal according to the gamut range；
Light source controller controls the first light source and described for receiving the control signal, and according to the control signal
The open and close of second light source, so that the gamut range that first light source and the light of second light source outgoing can be modulated meets institute
State the gamut range of image to be displayed；And
Optic modulating device, for carrying out image modulation to the primary lights and the supplement light to generate needed for image to be displayed
Projected light.
2. optical projection system as described in claim 1, it is characterised in that：The optical projection system further includes colour wheel, the colour wheel packet
At least two sectional areas are included, at least two sectional area receives the primary lights and the corresponding injection conversion light, institute
It includes at least two color of light to state conversion light, and the second light source includes an at least laser, and the supplement light includes laser；
If the colour gamut judgment module judges that the gamut range of image to be displayed is fallen in the first gamut range, first colour gamut
The gamut range that the light of ranging from described at least two color can be shown, the colour gamut judgment module is according to first colour gamut
Range outputs control signals to second light source described in the light-source controller controls and closes, and the optic modulating device is according to the figure
At least two color of light, which is modulated, as data generates projected light；
If the colour gamut judgment module judge the gamut range of image to be displayed at least partially in the second gamut range, described
Two gamut ranges are the gamut range other than first gamut range, and second gamut range the supplement light can be with
In the gamut range of displaying, the colour gamut judgment module outputs control signals to the light source control according to second gamut range
Device processed controls the first light source and is opened with the second light source, and the optic modulating device is adjusted respectively according to described image data
It makes the light that the colour wheel is sent out and generates projected light with the supplement light.
3. optical projection system as claimed in claim 2, it is characterised in that：The primary lights are radiated at the light formed on the colour wheel
The region that is irradiated to is spoke area when spot crosses over two sectional areas, and the region in the sectional area except spoke area is non-
The non-spoke area in spoke area, each sectional area corresponds to the period as the non-spoke phase, and each sectional area is in the non-spoke phase
It receives the primary lights and projects a kind of corresponding color of light, the period between the two neighboring non-spoke phase is the corresponding wheel
The spoke phase in spoke area；
Each colour wheel period includes at least two non-spoke phases and at least two spoke phases, each colour wheel period corresponding frame figure
As data include three subframe primary color image data；
If the colour gamut judgment module judges the gamut range of the corresponding image to be displayed of a wherein subframe primary color image data
At least partially in second gamut range, the colour gamut judgment module sends out control signal to the light-source controller controls
The first light source is opened in the non-spoke phase corresponding with the subframe primary color image data in the colour wheel period, the colour wheel
The color of light of the corresponding subframe primary color image data is projected in the non-spoke phase, the optic modulating device is in the non-spoke
Phase modulates the light that the colour wheel is sent out according to the subframe primary color image data；The light source controller also controls second light
Source opens in the spoke phase in the colour wheel period and sends out the supplement light, and the optic modulating device is in the spoke phase also according to institute
It states subframe primary color image data and modulates the supplement light, wherein the light that the supplement light is sent out with the colour wheel includes at least institute
State the primary color component of subframe primary color image data.
4. optical projection system as claimed in claim 3, it is characterised in that：The second light source includes that first laser device swashs with second
Light device sends out the first supplement light and the second supplement light respectively, if two subframe primary color images in the three subframes primary color image data
The corresponding gamut range of data at least partly not in first gamut range, described in the light-source controller controls
One light source is opened in the non-spoke phase corresponding with the two subframes primary color image data in the colour wheel period, and the colour wheel is in institute
It states the non-spoke phase and projects the color of light for including the primary color component for corresponding to the two subframes primary color image data, the optic modulating device
The light that the colour wheel is sent out is modulated according to the two subframes primary color image data in the non-spoke phase；
The light source controller also controls the second light source first round interim at least two spokes in the colour wheel period
The unlatching of spoke phase sends out first supplement light, and the light source controller also controls the second light source at least two spoke
The second interim spoke phase, which opens, sends out second supplement light, and the optic modulating device is in the first spoke phase and the second wheel
The spoke phase modulates first supplement light and the second supplement light according to the two subframes primary color image data respectively.
5. optical projection system as claimed in claim 3, it is characterised in that：The second light source includes that first laser device swashs with second
Light device, sends out the first supplement light and the second supplement light respectively, and the optic modulating device includes the first spatial light modulator and second
Spatial light modulator, first spatial light modulator are used to modulate the first subframe base in the three subframes primary color image data
Color image data, the second space optical modulator are used to modulate second and third in the three subframes primary color image data
Frame primary color image data；
First spatial light modulator is in the first interim non-spoke phase of at least two non-spoke according to first son
Frame primary color image data modulate the colour wheel and correspond to the light sent out；
The second space optical modulator is then in at least two non-spoke phase respectively according to described second and third subframe base
Color image data modulate the colour wheel and correspond to the light sent out；
If the colour gamut judgment module judges that the first subframe primary color image data are corresponding in the three subframes primary color image data
The gamut range of image to be displayed is believed at least partially in second gamut range, the colour gamut judgment module output controls
It is number interim in the spoke phase in the colour wheel period or described two non-spoke to second light source described in the light-source controller controls
The second non-spoke phase different from the first non-spoke phase open and emit first supplement light, the first spatial light tune
Device processed is also in the spoke phase in the colour wheel period or the second non-spoke phase according to the first subframe primary color image data tune
Make first supplement light；
If the colour gamut judgment module judges that the second subframe primary color image data are corresponding in the three subframes primary color image data
Gamut range at least partially in second gamut range, the colour gamut judgment module outputs control signals to the light source
Controller controls the second light source and opens transmitting second supplement light in an at least spoke phase in the colour wheel period, described
Second space optical modulator is also in an at least spoke phase in the colour wheel period according to the second subframe primary color image data tune
Make second supplement light.
6. optical projection system as claimed in claim 5, it is characterised in that：If the colour gamut judgment module judges the three subframes base
At least portion of first subframe primary color image data gamut range corresponding with the second subframe primary color image data in color image data
Divide in second gamut range, the colour gamut judgment module is output control signals to described in the light-source controller controls
Second light source is opened in the spoke phase in the colour wheel period emits first supplement light and the second supplement light, first space
Optical modulator is also in the spoke phase in the colour wheel period according to the first subframe primary color image data modulation first supplement
Light；The second space optical modulator is also in the spoke phase in the colour wheel period according to the second subframe primary color image data tune
Make second supplement light.
7. optical projection system as claimed in claim 6, it is characterised in that：If the colour gamut judgment module judges the three subframes base
The first subframe primary color image data are in second gamut range in color image data, the colour gamut judgment module output control
Spoke phase and second non-spoke of the second light source described in signal to the light-source controller controls in the colour wheel period
The part-time of phase, which is opened, emits first supplement light, and first spatial light modulator is also in the spoke in the colour wheel period
The part-time of phase and the second non-spoke phase are according to the first subframe primary color image data modulation first supplement
Light.
8. optical projection system as claimed in claim 2, it is characterised in that：First gamut range is DCI gamut ranges, described
Second gamut range is the part that REC gamut ranges remove DCI gamut ranges.
9. the optical projection system as described in claim 4,5,6,7 any one, it is characterised in that：The three subframes primary color image
Data are respectively red sub-frame image data, green sub-frame image data and blue subframes image data, and the colour wheel corresponds to
At least two non-spoke phase sends out sodium yellow and blue light, and the non-spoke phase of sodium yellow, the light are sent out in the colour wheel
Modulating device modulates the sodium yellow according to the red and green sub-frame image data, and the non-of blue light is sent out in the colour wheel
Spoke phase, the optic modulating device modulate the blue light according to the blue subframes image data, and first supplement light is
Red laser is one such with green laser, and second supplement light is red laser and green laser therein other one
Kind.
10. the optical projection system as described in claim 4,5,6,7 any one, it is characterised in that：The three subframes primary colour picture
As data are respectively red sub-frame image data, green sub-frame image data and blue subframes image data, the colour wheel correspondence
Sodium yellow and cyan light are sent out in at least two non-spoke phase, the non-spoke phase of sodium yellow is sent out in the colour wheel, it is described
Optic modulating device modulates the sodium yellow according to the red sub-frame image data, and the non-spoke of cyan light is sent out in the colour wheel
Phase, the optic modulating device modulate the cyan according to the blue subframes image data and the green sub-frame image data
Light, first supplement light be red laser, second supplement light be green laser it is therein another.
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| CN201710010618.XA CN108279548B (en) | 2017-01-06 | 2017-01-06 | Projection system |
| PCT/CN2017/081496 WO2018126561A1 (en) | 2017-01-06 | 2017-04-21 | Projection system |
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|---|---|---|---|
| CN201710010618.XA CN108279548B (en) | 2017-01-06 | 2017-01-06 | Projection system |
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| CN109283783A (en) * | 2018-11-30 | 2019-01-29 | 青岛海信激光显示股份有限公司 | A kind of laser projection method and device |
| WO2019174272A1 (en) * | 2018-03-16 | 2019-09-19 | 深圳光峰科技股份有限公司 | Display device and display method |
| WO2020042566A1 (en) * | 2018-08-31 | 2020-03-05 | 深圳光峰科技股份有限公司 | System and method for dynamically adjusting color gamut of display system, and display system |
| CN110874004A (en) * | 2018-09-03 | 2020-03-10 | 深圳光峰科技股份有限公司 | Light source device and display device |
| WO2020057152A1 (en) * | 2018-09-21 | 2020-03-26 | 深圳光峰科技股份有限公司 | Dynamic color gamut adjustment system and method, and display system |
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Also Published As
| Publication number | Publication date |
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| WO2018126561A1 (en) | 2018-07-12 |
| CN108279548B (en) | 2021-02-02 |
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