CN106154711A - A kind of optical projection system and colour gamut control method thereof - Google Patents
A kind of optical projection system and colour gamut control method thereof Download PDFInfo
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- CN106154711A CN106154711A CN201510165698.7A CN201510165698A CN106154711A CN 106154711 A CN106154711 A CN 106154711A CN 201510165698 A CN201510165698 A CN 201510165698A CN 106154711 A CN106154711 A CN 106154711A
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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
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
Abstract
A kind of optical projection system, including light source and control system, the data parsing of display is primary lights signal by control system, one of them primary colour signal is transferred to 2 control signals by chromacoder, these two control signals control a kind of coloured light respectively and are modulated on DMD, these two control signals control the first coloured light and the second Colored light mixing after brightness set with chromaticity coordinates consistent with this resolved primary lights signal.This optical projection system controls two coloured light close in sequential by a primary lights signal and carries out sequential conjunction light, improves the utilization rate of coloured light；The first coloured light of light and the brightness of setting reference first primary lights of the brightness of the second coloured light and chromaticity coordinates and chromaticity coordinates is closed to carrying out sequential, ensure that picture quality, additionally can adjust colour gamut easily by arranging the brightness ratio between the first coloured light and the second coloured light.The colour gamut that especially can adjust easily when there being multiple such optical projection system tiled display.
Description
Technical field
The present invention relates to projector field, in particular, relate to a kind of optical projection system and colour gamut control method thereof.
Background technology
At present, DLP projection display technique obtains extensively application, its core component spatial light modulator in field of projection display
DMD, with the feature of its fast response time, can realize colour projection with the primary lights of sequential switching and show, so that single
Chip DMD optical projection system becomes a kind of more ripe technology.One chip DMD optical projection system is with its simple in construction, cost
Relatively low, extensively apply in middle and low-end market.In terms of the light source of optical projection system, United States Patent (USP) US7547114B2 provides one
Kind of semiconductor laser excites on colour wheel that different fluorescence pink colour sections are with the method forming different base colors light, and it is high that the method has light efficiency,
The advantage that etendue amount is little, therefore quickly grows, and becomes the ideal chose of projector light source.Glimmering in existing laser excitation
In light powder light source, owing to the red light fluorescent powder or orange light phosphor powder launching efficiency producing HONGGUANG is relatively low, the fluorescence simultaneously produced
Also needing to coordinate corresponding optical filter to filter short-wavelength light makes HONGGUANG purer, and this causes the HONGGUANG fluorescence efficiency finally given the lowest.
Therefore, for system, HONGGUANG brightness proportion in overall brightness is relatively low, and this causes poor quality images.In reality
In application, different occasions requires different for the colour gamut of optical projection system, and therefore optical projection system needs to realize different colour gamuts.
Currently mainly it is adjusted by the control program DDP color domain of DMD, specifically, is by CCA (color
Coordinate adjust) chromaticity coordinates of three primary colours is adjusted by algorithm.
Existing DMD optical projection system is as shown in Figure 1: system includes LASER Light Source 101, collecting lens 102,104, colour wheel
103, square rod 105, light relay system 106, TIR prism 107, dmd chip 108 and control device 109, projection lens
110.
LASER Light Source 101 uses 445nm blue laser module, incides fluorescence as shown in Figure 2 after collecting lens 102 focuses on
On pink colour wheel 103, colour wheel divides three parts, and blue section scribbles scattering powder so that blue laser disappears outgoing after partial ocoherence, green
Color section and red color segment, blue LASER Excited Fluorescence powder produces green fluorescence and red fluorescence, after rotating color wheel, produces sequential
Three primary colours light, its colour gamut is as shown in Figure 3.The light of colour wheel outgoing, after collecting lens 104 is collected, enters square rod 105 and enters
The even light of row, incides at TIR prism 107 through light relay system 106 after even light, arrives DMD108 at TIR prism after reflection,
After DMD controls device 109 (i.e. DDP) process, by modulated light transmission TIR prism 107, arrive projection lens 110,
It is ultimately imaged.DMD controls the working method of device 109 as shown in Figure 4, and the RGB image signal that DVI decodes out is input to DMD
Device DDP, DDP are after CCA algorithm process in control, and output RGB three primary colours optical signal sends into DMD, DMD according to every road signal
Gray value size overturn.CCA algorithm corrects for chromaticity coordinates, as a example by the photochromic Coordinate Adjusting of red primary, if HONGGUANG
Chromaticity coordinates needs correction, then during DDP can control green glow part incorporation HONGGUANG, thus realize the correction of HONGGUANG.Such as video
Signal RGB is (255,0,0), then the rgb signal that DDP parses is (255,1,0), like this.In this process
In, due to green glow distance HONGGUANG chromaticity coordinates farther out, therefore HONGGUANG timing is not required to mix too many green glow, this for
The luminance raising of HONGGUANG does not help, and picture quality is the most poor.Therefore, a kind of colour gamut how is realized adjustable, the most again
Can guarantee that the optical projection system of high image quality, become an important problem.
Summary of the invention
For solving the problems referred to above, the invention provides a kind of optical projection system, including light source and control system, described light source provides
At least four coloured light of sequential outgoing, including the first coloured light, the second coloured light, tertiary color light and the 4th coloured light；Described control is
System includes lsb decoder, signal conversion part and spatial light modulator；
It is the first primary lights signal, the second primary lights signal and three primary colours that described lsb decoder is used for data parsing to be shown
Optical signal；Described signal conversion part controls letter for described first primary lights signal is converted to the first control signal and second
Number, the second primary lights signal is converted to the 3rd control signal, three primary colours optical signal is converted to the 4th control signal；
Spatial light modulator is modulated, being incident on the first coloured light thereon under the effect of described first control signal
It is modulated, to being incident under the effect of the 3rd control signal being incident on the second coloured light thereon under two control signal effects
Tertiary color light thereon is modulated, and is modulated being incident on the 4th coloured light thereon under the effect of the 4th control signal；
The first primary lights letter that brightness after described first coloured light and described second Colored light mixing and data to be displayed parse
Number brightness is identical, the first base that the chromaticity coordinates after described first coloured light and described second Colored light mixing separates out with data to be displayed
The chromaticity coordinates of coloured light signal is identical.
By foregoing description, the optical projection system that the present invention provides controls two by a primary lights signal and leans in sequential
Near coloured light carries out sequential and closes light, improves the utilization rate of coloured light；The first coloured light of light and the second coloured light is closed to carrying out sequential
The brightness of setting reference first primary lights of brightness and chromaticity coordinates and chromaticity coordinates, it is ensured that picture quality, additionally can be by setting
Put the brightness ratio between the first coloured light and the second coloured light and can adjust colour gamut easily.Especially when there being multiple such throwing
The colour gamut that can adjust easily during shadow system tiled display.
Another aspect of the invention provides the colour gamut method of adjustment of a kind of optical projection system, described optical projection system include light source and
Control system, described light source provides at least four coloured light of sequential outgoing, including the first coloured light, the second coloured light, tertiary color light
With the 4th coloured light；
Described control system includes lsb decoder, signal conversion part and spatial light modulator, and described lsb decoder is for by be shown
Data parsing is the first primary lights signal, the second primary lights signal and three primary colours optical signal；Described signal conversion part is used for will
Described first primary lights signal is converted to the first control signal and the second control signal, and the second primary lights signal is converted to the 3rd
Control signal, is converted to the 4th control signal by three primary colours optical signal；
Spatial light modulator is modulated, being incident on the first coloured light thereon under the effect of described first control signal
It is modulated, to being incident under the effect of the 3rd control signal being incident on the second coloured light thereon under two control signal effects
Tertiary color light thereon is modulated, and is modulated being incident on the 4th coloured light thereon under the effect of the 4th control signal；
The first primary lights letter that brightness after described first coloured light and described second Colored light mixing and data to be displayed parse
Number brightness is identical, the first base that the chromaticity coordinates after described first coloured light and described second Colored light mixing separates out with data to be displayed
The chromaticity coordinates of coloured light signal is identical.
This control method controls the first coloured light and the mixed chromaticity coordinates of the second coloured light and the first primary colour signal is identical, first with
Chromaticity coordinates and the signal of the first primary lights after second Colored light mixing are the most identical, by adjusting between the first coloured light and the second coloured light
Ratio just can control the colour gamut of optical projection system easily, the optical projection system that can make adapts to will with different display standards
Ask.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing skill
In art description, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only the present invention
Embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to carrying
The accompanying drawing of confession obtains other accompanying drawing.
Fig. 1 is existing optical projection system figure；
Fig. 2 is colour wheel structure chart in existing optical projection system；
Fig. 3 is the gamut map of existing optical projection system；
Fig. 4 is the working method figure that existing DMD controls device；
Fig. 5 is the optical projection system figure of the embodiment of the present invention 1；
Fig. 6 is the colour wheel structure chart of the embodiment of the present invention 1 optical projection system；
Fig. 7 is the control system figure of the embodiment of the present invention 1 optical projection system.
Fig. 8 is that the embodiment of the present invention 1 control signal controls DMD modulation coloured light sequential chart；
Fig. 9 is the driving current intensity figure that the embodiment of the present invention 1 white light is corresponding；
Figure 10 is the embodiment of the present invention 1 gamut map；
Figure 11 is the driving current duty cycle schematic diagram that the present invention implements that 1 white light is corresponding；
Figure 12 be the embodiment of the present invention 1 first control signal identical with the second control signal value time control system figure；
Figure 13 be the embodiment of the present invention 2 signal conversion external time control system figure；
Figure 14 is the colour wheel structure chart of the embodiment of the present invention 4 optical projection system.
Figure 15 is the embodiment of the present invention 4 gamut map；
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme is clearly and completely described, aobvious
So, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.The present invention is projected
The control method of system gamut combines being illustrated of optical projection system in embodiments, illustrates the most separately for saving space.
Based on the embodiment in the present invention, it is all that those of ordinary skill in the art are obtained under not making creative work premise
Other embodiments, broadly fall into the scope of protection of the invention.
Embodiment 1
For solving the problem proposed in prior art, the colour gamut control of the projection display system that the invention provides or optical projection system
Method processed, including light source and control system, light source can sequential outgoing at least four coloured light, can be such as to launch different face
The light source timesharing luminescence of color forms sequential coloured light, preferably selects common solid state light emitter laser instrument or LED, or selects rotation
Colour wheel launches sequential light.Light source in the present invention includes excitation source, monochromatic illuminating source and colour wheel 505, excitation source
For launching laser instrument or the laser instrument module 501 of 445nm blue light, monochromatic illuminating source is that the HONGGUANG launching 638nm HONGGUANG swashs
Light device or red laser module 502.Colour wheel is four-part form, for outgoing the first coloured light, the second coloured light, tertiary color light
With the 4th coloured light, the first concrete coloured light be red laser or red laser module 502 produce HONGGUANG (for ease of
Understand, the reddest laser), the second coloured light be on 445nm indigo plant laser excitation colour wheel 505 orange fluorescent powder section produce
Orange light (for ease of understanding, hereinafter referred to as orange fluorescence), tertiary color light is green glow and the 4th coloured light is blue light.This four-part form color
The transparent diffuser red laser of section outgoing of wheel, orange light phosphor powder section outgoing orange fluorescence, green light fluorescent powder section outgoing green fluorescence,
Scattering section outgoing blue light.In this programme, tertiary color light green glow and the 4th coloured light blue light can also be the greenest by green luminescence element
Laser instrument or blue laser instrument provide.
Fig. 5 shows the concrete structure of present embodiment optical projection system, including the 445nm blue laser as excitation source
501, it is used as the monochromatic red laser 502 of illuminating source, dichroic mirror 503, collecting lens 504 and 506, colour wheel 505,
Square rod 507, light relay system 508, TIR prism 509, dmd chip 510 and signal conversion part 511, projection lens 512.
The red laser that the blue laser that excitation source 501 sends and red laser 502 send closes light at dichroic mirror 503, two to
Color mirror transmission blu-ray reflection HONGGUANG, closes the light beam after light and focuses on colour wheel 505 through collecting lens 504, and red laser is also
Carrying out with the light through colour wheel after can being placed on colour wheel closing light, present embodiment is for citing, and other close optical position and close light
Mode will not enumerate at this.Colour wheel 505 is four-part form colour wheel as shown in Figure 6, and wherein blue laser 501 is at color
The orange fluorescent powder section of wheel, green emitting phosphor section or scattering section are opened when being on light source optical axis, blue laser excitation green-emitting fluorescent
Powder section and orange light phosphor powder section produce transmission after green fluorescence and orange fluorescence；Transmission after scattering section indigo plant laser is scattered.In transmission
Diffuser section (the most transparent diffuer section) blue light swashs device 501 and closes, and red laser 502 is opened, red laser warp
Collimating lens 504 focuses on transmission after diffuser section.The sequential light of colour wheel 505 outgoing enters after collecting lens 506
Square rod 507, arrives at TIR prism 509 through light relay system 508 after even light, arrives dmd chip 510 after reflection,
Under the signal of signal conversion part 511 conversion controls, incident illumination is modulated by dmd chip 510, the light transmission after being modulated
TIR prism 509, finally through projection lens 512 imaging.Colour wheel in present embodiment can also use total-reflection type structure,
As long as at least four coloured light of sequential outgoing can be provided.Colour wheel in present embodiment is only used as a kind of optimal way and lifts
Example description this programme, as it was previously stated, colour wheel can also only comprise orange fluorescent powder for provide orange fluorescence, other coloured light can
To be provided by light-emitting component.
Control system includes lsb decoder, signal conversion part and spatial light modulator, and as shown in Fig. 7 or Fig. 8, lsb decoder will be treated
The data parsing of display is the first primary lights signal R, the second primary lights signal G and three primary colours optical signal B；Signal is changed
Portion 511 is control unit DDP of DMD, and present embodiment is by the program of control unit DDP of amendment DMD so that it is tool
There is function switching signal.Amended DDP its described first primary lights signal R is converted to the first control signal R1 and
Two control signals R1 or R2, be converted to the 3rd control signal G1, by three primary colours optical signal B by the second primary lights signal G
Be converted to the 4th control signal B1；Spatial light modulator is digital micro-mirror DMD, and it is at the work of described first control signal R1
It is modulated, under the second control signal R2 effect to incidence being thereon incident on the first red laser of coloured light thereon with lower
The second coloured light orange fluorescence be modulated, green glimmering to being incident on tertiary color light thereon under the effect of the 3rd control signal G1
Light is modulated, and is modulated being incident on the 4th coloured light indigo plant laser thereon under the effect of the 4th control signal B1.On
Four coloured light stated are not limited to laser, it is also possible to be the light of LED generation.When sequential coloured light is modulated by DMD, by
The first primary lights that the red laser of a shade and the described second coloured light mixed brightness of orange fluorescence parse with data to be displayed
Signal R brightness is set to identical, the described first red laser of coloured light and the described second coloured light mixed chromaticity coordinates of orange fluorescence with wait to show
Registration is set to identical according to the chromaticity coordinates of the first primary lights signal R separated out, it is ensured that the picture quality of display.
Data to be displayed is decoded as the first primary lights signal R, the second primary lights signal G and three primary colours optical signal B by DVI,
Above-mentioned primary lights signal is converted to tetra-control signals of R1, R2, G1, B1 through DDP process, is equivalent to the first primary lights letter
Number R is repeated in sequential, now, the signal that the upper actual incident light of DMD and DMD process as shown in Figure 8, i.e.
Within the time of R1 and R2 control signal, DMD has processed red laser R and orange fluorescence O the most respectively.Specifically,
As shown in figure 12, it is assumed that the first primary lights signal R gray value is a (0≤a≤255), through signal conversion part DDP process
Rear gray value becomes b and c (0≤b, c≤255), then, after two sections of sequential mixing, the HONGGUANG brightness of actual outgoing is a/255 LR’
(LR' be red laser instrument high-high brightness), chromaticity coordinates is that (x, y), the brightness of actual outgoing refers to the reality that human eye receives
Brightness, that is to say gray-scale intensity, such as a/255 LR’；Assume that the red laser brightness that red sharp device is launched is b/255 LR(LR
High-high brightness for red laser instrument), chromaticity coordinates is (xR,yR), the orange fluorescent brightness exciting orange fluorescent powder to produce is c/255 LO
(LOFor fluorescent orange high-high brightness), chromaticity coordinates is (xO,yO), then above each parameter meets relationship below:
The gray value a of the i.e. first primary lights signal is converted into the first control signal that gray value is b and gray value is c
Two control signals, change the first control signal gray value b and the second control signal gray value c, by controlling the upset of DMD
Degree can change the ratio between red laser and orange fluorescence, thus after changing red laser and orange fluorescence mixing, the color of HONGGUANG is sat
Mark, meanwhile, corresponding green fluorescence is also required to be changed with the gray value of the blue light being scattered, coordinates HONGGUANG after mixing
Keep white balance.The conversion of above signal is all the signal conversion part 511 by control system, specifically, is by amendment
After DDP be directly realized by.
In order to make it easy to understand, the gray value a of the first primary lights signal changed by signal conversion part 511 after the first control signal
A all it is set to, it is assumed that the first primary lights signal R signal gray value is a (0≤a≤255) with the gray value of the second control signal,
After DDP changes, the gray value of the first and second control signals is all a, and gray value is all that first control signal of a controls red
Laser and the second control signal control the i.e. orange fluorescence of the second primary lights and are modulated in spatial light modulator, and red laser and orange are glimmering
After light mixes in sequential, the HONGGUANG brightness of actual outgoing is a/255 LR’(LR' be the high-high brightness of HONGGUANG), chromaticity coordinates
For (x, y), it is assumed that red laser R brightness is a/255 LR(LRFor the brightness that red laser is maximum), chromaticity coordinates is (xR,yR),
Orange light O brightness is a/255 LO(LOFor the brightness that fluorescent orange is maximum), chromaticity coordinates is (xO,yO), then above each ginseng
Measure and meet relationship below:
LR'=LR+LO
Using and achieve the sequential of red laser and fluorescent orange with upper type and close light, it is red that the two is mixed to get needed for system
Light, brightness is LR', chromaticity coordinates be (x, y).Owing to HONGGUANG is mixed to get by two kinds of light, if the ratio of two kinds of light is sent out
Changing, then the red light color coordinate obtained after mixing also can occur to change accordingly.
Control system also includes light source drive control part, and described light source drive control part is by controlling the first coloured light and the second coloured light
Driving current intensity or current duty cycle allocate the first coloured light and the brightness ratio of the second coloured light.Light source drive control part is also controlled
Tertiary color light processed or the driving current intensity of the 4th coloured light or dutycycle, make data to be displayed reach predetermined white balance；
Or, described signal conversion part also configures that tertiary color light or the gray value of the 4th coloured light, makes data to be displayed reach predetermined white
Balance, white balance refers to various Colored light mixing and meets the requirement of certain standard to the chromaticity coordinates of the later white light obtained together,
The such as REC.709 requirement (0.31,0.33) to white light, the DCI standard requirement (0.314,0.351) to white light.
In the foregoing description, red laser brightness LRWith fluorescent orange brightness LOIt is driven by size of current to determine, therefore,
Change, by the light source drive control part of control system, the driving electric current that red laser instrument is corresponding with exciting light sources, can change red
Laser brightness LRWith orange fluorescence LOCorresponding brightness, thus change the red light color coordinate finally given, as it is shown in figure 9, reduce
The driving current intensity of the excitation source that orange fluorescence section is corresponding, improves the intensity of the red red laser drive current of laser section, can carry
High red laser ratio in the two, so that mixed HONGGUANG coordinate is to redder Directional Extension, as shown in Figure 10.
Meanwhile, in order to after ensureing colour gamut change, white balance is constant, need the exciting light that corresponding regulation scattering blue light is corresponding with green fluorescence
Source drives current intensity.
Preferably, as shown in figure 11, light source drive part control portion uses PWM drive current modulation system, each by changing
Section drives the dutycycle of electric current, regulates electric current excitation intensity, thus changes the brightness of each section, is changing the same of red light color coordinate
Time, keep white balance.
Embodiment 2
Present embodiment is with the difference of above-mentioned embodiment, and signal conversion part 511 is different from DDP, for external
The device of signal conversion, in the above-described embodiments, in terms of DMD controls program DDP, needs to revise its intrinsic program and reality
Executing the colour wheel in example, light sequential corresponding, the present embodiment does not revise DDP intrinsic program, uses external signal conversion equipment 511,
Such as FPGA, as shown in figure 13.The first primary lights signal R, the second primary lights signal G that DVI is parsed and
Three primary colours optical signal B, after chromacoder 511, becomes the first control signal R1, the second control signal O1, the
Three control signals G1 and the 4th control signal B1, DDP is arranged to four-part form, respectively R1, O1, G1 and B1 section, control
DMD processed processes the first coloured light, the second coloured light, tertiary color light and the 4th coloured light respectively.Specifically, DVI parses
In first primary lights signal R, the second primary lights signal G and three primary colours optical signal B, the first primary lights signal R is through letter
After number conversion equipment 511, becoming R1 Yu O1 control signal, it determines the first coloured light according to the gray value ratio being the two
With the chromaticity coordinates of the HONGGUANG obtained after the second Colored light mixing, the signal that such as DVI parses is (255,100,100), warp
After crossing chromacoder 511, become (255,255,100,100), in other words, the first control signal R1 and
Two control signals O1 are not independent, and the two is interrelated, and the first coloured light and the second coloured light will not be by individually as primary colours
Light processes.If changing the first control signal R1 and the gray value of the second control signal O1, overturn journey by the upset of DMD
Degree can change the ratio of first coloured light the second coloured light, and the red light color coordinate obtained after the two mixing also can change, meanwhile,
In order to ensure white balance, the corresponding value changing green fluorescence and blue laser, the signal that such as DVI parses is
(255,100,100), after chromacoder 511, become (255,240,98,110), like this.
Embodiment 3
Present embodiment is with the difference of embodiment 1, and the first coloured light is green glow, and the second coloured light is dark green light, the 3rd
Coloured light is HONGGUANG, and described 4th coloured light is blue light；Described first primary lights signal is green glow, and described second primary lights signal is
HONGGUANG, described three primary colours optical signal is blue light.By the ratio of regulation green fluorescence with dark green laser, obtain different green glows
Chromaticity coordinates, it is achieved different colour gamuts.Thus, the present invention can realize the switching between different colour gamut, such as REC.709 and DCI
The switching of gamut standards, and in colour gamut handoff procedure, by regulating the ratio of three primary colours, keep white balance constant, its
It is advantageous in that, on the basis of keeping HONGGUANG brightness ratio, realizes the switching at runtime of colour gamut, it is possible to realize high-quality simultaneously
Image shows.
Embodiment 4
Described light source also outgoing the 5th coloured light on the basis of embodiment 1--dark green light, selects dark green laser in present embodiment,
Can also be other dark green light, the immediately green fluorescence sequential outgoing of this viridescent laser, described signal conversion part 511 be also by described the
Two primary lights signal G are converted to the 3rd control signal G1 and the 5th control signal C1；Spatial light modulator 505 is described
It is modulated being incident on dark green laser thereon under the effect of five control signals C1；Green fluorescence and dark green laser are mixed
The second primary lights signal G brightness that brightness parses with data to be displayed is identical, and green fluorescence and light viridescent laser are mixed
The chromaticity coordinates of the second primary lights signal G that chromaticity coordinates parses with data to be displayed is identical.Present embodiment is added viridescent and is swashed
Colour wheel, as the second monochromatic illuminating source, is set to five-part form by light simultaneously, and as shown in figure 14, each section of five-part form colour wheel is successively
Be respectively for the red laser of transmission a diffuser section, orange fluorescent material section, green fluorescence powder section, for transmission viridescent laser
Second segment diffuser section and the blue light scattering section of the blue laser of scattering.Such as laser instrument in embodiment 1, red in present embodiment
Laser instrument still selects the red laser instrument of 638nm, dark green laser to select 530nm viridescent laser instrument.Blue laser 501 exists
The orange fluorescent powder section of described colour wheel 505, green emitting phosphor section or scattering section are opened when being on light source optical axis；Red laser
Device 502 spreads when transparent section is on light source optical axis described first to be opened, and described dark green light laser is described second transparent
Diffuser is on light source optical axis unlatching.
Dark green laser and the regulative mode of green fluorescence, with the red laser in embodiment 1 and the modulation system of orange fluorescence, can be logical
Cross control system regulate each section of gray value or drive current intensity or dutycycle by the regulation of light source drive control part.Above-mentioned
Mode changes the ratio of red laser laser dark green with orange fluorescence or change and green fluorescence, or to change red laser glimmering with orange simultaneously
Light ratio, dark green laser and the ratio of green fluorescence, thus it is possible to vary the HONGGUANG of final outgoing and the chromaticity coordinates of green glow, thus reach
Different colour gamuts, realizes the gamut transform between REC.709 and DCI as shown in figure 15, and during gamut transform,
Ratio between regulation three primary colours light, keeps white balance.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.To this
The multiple amendment of a little embodiments will be apparent from for those skilled in the art, as defined herein typically
Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will
Will not be intended to be limited to the embodiments shown herein, and be to fit to consistent with principles disclosed herein and features of novelty
The widest scope.
Claims (30)
1. an optical projection system, including light source and control system, it is characterised in that described light source provides at least the four of sequential outgoing
Plant coloured light, including the first coloured light, the second coloured light, tertiary color light and the 4th coloured light；Described control system includes lsb decoder, letter
Number converter section and spatial light modulator；
It is the first primary lights signal, the second primary lights signal and three primary colours that described lsb decoder is used for data parsing to be shown
Optical signal；Described signal conversion part controls letter for described first primary lights signal is converted to the first control signal and second
Number, the second primary lights signal is converted to the 3rd control signal, three primary colours optical signal is converted to the 4th control signal；
Spatial light modulator is modulated, being incident on the first coloured light thereon under the effect of described first control signal
It is modulated, to being incident under the effect of the 3rd control signal being incident on the second coloured light thereon under two control signal effects
Tertiary color light thereon is modulated, and is modulated being incident on the 4th coloured light thereon under the effect of the 4th control signal；
The first primary lights letter that brightness after described first coloured light and described second Colored light mixing and data to be displayed parse
Number brightness is identical, the first base that the chromaticity coordinates after described first coloured light and described second Colored light mixing separates out with data to be displayed
The chromaticity coordinates of coloured light signal is identical；
Described control system also includes light source drive control part, and described light source drive control part is by controlling the first coloured light and second
The driving current intensity of coloured light or current duty cycle allocate the first coloured light and the brightness ratio of the second coloured light.
Optical projection system the most according to claim 1, it is characterised in that by described signal conversion part, by described first base
The gray value of coloured light signal is configured to a, described first control signal gray value is configured to b and controls letter by described second
Number gray value is configured to c, and the mixed light of described first coloured light and described second coloured light and described first primary lights signal are in brightness
With meet following relation on chromaticity coordinates:
Wherein LR' it is the high-high brightness of the first primary lights signal, LRIt is the high-high brightness of the first coloured light, LOIt it is the maximum of the second coloured light
Brightness, the chromaticity coordinates of the first primary lights signal is that (x, y), the first coloured light chromaticity coordinates is (xR,yR), the second coloured light color is sat
It is designated as (xO,yO)。
Optical projection system the most according to claim 2, it is characterised in that by described signal conversion part by described first primary colours
The gray value of optical signal, described first control signal gray value and the second control signal gray value are configured to same value a, described
The mixed light of the first coloured light and described second coloured light and described first primary lights signal meet such as ShiShimonoseki in brightness and chromaticity coordinates
System:
LR'=LR+LO
Wherein LR' it is the high-high brightness of the first primary lights signal, LRIt is the high-high brightness of the first coloured light, LOIt it is the maximum of the second coloured light
Brightness, the chromaticity coordinates of the first primary lights signal is that (x, y), the first coloured light chromaticity coordinates is (xR,yR), the second coloured light color is sat
It is designated as (xO,yO)。
Optical projection system the most according to claim 1, it is characterised in that described light source drive control part also control tertiary color light or
The driving current intensity of person the 4th coloured light or dutycycle, make data to be displayed reach predetermined white balance；Or, described signal
Converter section also configures that the gray value of the 3rd control signal adjusts the gray value tune of tertiary color brightness and configuration the 4th control signal
The brightness of whole 4th coloured light, makes data to be displayed reach predetermined white balance.
Optical projection system the most according to claim 1, it is characterised in that described signal conversion part is described spatial light modulator
Control system DDP or be the chromacoder independent of described spatial light modulator.
The most according to claim 1, optical projection system, it is characterised in that described first coloured light is HONGGUANG, described second coloured light is
Orange light, described tertiary color light is green glow, and described 4th coloured light is blue light；Described first primary lights signal is HONGGUANG, described
Two primary lights signals are green glow, and described three primary colours optical signal is blue light.
The most according to claim 1, optical projection system, it is characterised in that described first coloured light is green glow, described second coloured light is
Dark green light, described tertiary color light is HONGGUANG, and described 4th coloured light is blue light；Described first primary lights signal is green glow, described
Second primary lights signal is HONGGUANG, and described three primary colours optical signal is blue light.
8. according to optical projection system described in any one of claim 1 to 7, it is characterised in that described light source include excitation source,
One monochromatic illuminating source and the rotatable color wheel being placed on described light source optical axis, described colour wheel includes the transparent diffusion set gradually
Section, orange fluorescent powder section, green emitting phosphor section and scattering section.
Optical projection system the most according to claim 8, it is characterised in that described excitation source is blue laser, described first
Monochromatic illuminating source is red laser, and described blue laser is in the orange fluorescent powder section of described colour wheel, green emitting phosphor section
Or scatter unlatching when section is on light source optical axis；Described red laser is opened when described diffusion transparent section is on light source optical axis
Open.
Optical projection system the most according to claim 9, it is characterised in that the blue laser dominant wavelength that described blue laser sends
For 445nm, the dominant wavelength of the red laser that described red laser instrument sends is 638nm.
11. optical projection systems according to claim 1, it is characterised in that described light source also outgoing the 5th coloured light, the described five colors
Light immediately tertiary color light sequential outgoing, described second primary lights signal is also converted to the 3rd control signal by described signal conversion part
With the 5th control signal；Spatial light modulator enters being incident on the 5th coloured light thereon under the effect of described 5th control signal
Row modulation；It is characterized in that, described tertiary color light and the described 5th mixed brightness of coloured light parse with data to be displayed
The second primary lights luminance signals identical, described tertiary color light and the described 5th mixed chromaticity coordinates of coloured light and data to be displayed
The chromaticity coordinates of the second primary lights signal parsed is identical.
12. according to optical projection system described in claim 11, it is characterised in that described first coloured light is HONGGUANG, described second coloured light
For orange light, described tertiary color light is green glow, and described 4th coloured light is blue light, and the 5th coloured light is dark green light；Described first primary colours
Optical signal is HONGGUANG, and described second primary lights signal is green glow, and described three primary colours optical signal is blue light.
13. according to optical projection system described in claim 1,11 or 12, it is characterised in that described light source include excitation source,
One monochromatic illuminating source, the second monochromatic illuminating source and the rotatable color wheel being placed on described light source optical axis, described colour wheel includes
The first transparent diffuser, orange fluorescent powder section, green emitting phosphor section, the second transparent diffuser and the scattering section set gradually.
14. optical projection systems according to claim 13, it is characterised in that described excitation source is blue laser, described
First monochromatic illuminating source is red laser, and described second monochrome light emitting elements is dark green light laser；Described blue laser
Device is opened when being on light source optical axis in orange fluorescent powder section, green emitting phosphor section or the scattering section of described colour wheel；Described HONGGUANG
Laser instrument spreads when transparent section is on light source optical axis described first to be opened, and described dark green light laser is described second transparent
Diffuser is on light source optical axis unlatching.
15. according to optical projection system described in claim 14, it is characterised in that the main ripple of blue laser that described blue laser sends
A length of 445nm, the dominant wavelength of the red laser that described red laser sends is 638nm, and described dark green light laser sends
The dominant wavelength of dark green laser is 530nm.
The colour gamut control method of 16. 1 kinds of optical projection systems, it is characterised in that described optical projection system includes light source and control system, institute
State light source and provide at least four coloured light of sequential outgoing, including the first coloured light, the second coloured light, tertiary color light and the 4th coloured light；
Described control system includes lsb decoder, signal conversion part and spatial light modulator, and described lsb decoder is for by be shown
Data parsing is the first primary lights signal, the second primary lights signal and three primary colours optical signal；Described signal conversion part is used for will
Described first primary lights signal is converted to the first control signal and the second control signal, and the second primary lights signal is converted to the 3rd
Control signal, is converted to the 4th control signal by three primary colours optical signal；
Spatial light modulator is modulated, being incident on the first coloured light thereon under the effect of described first control signal
It is modulated, to being incident under the effect of the 3rd control signal being incident on the second coloured light thereon under two control signal effects
Tertiary color light thereon is modulated, and is modulated being incident on the 4th coloured light thereon under the effect of the 4th control signal；
The first primary lights letter that brightness after described first coloured light and described second Colored light mixing and data to be displayed parse
Number brightness is identical, the first base that the chromaticity coordinates after described first coloured light and described second Colored light mixing separates out with data to be displayed
The chromaticity coordinates of coloured light signal is identical；
Described control system also includes light source drive control part, and described light source drive control part is by controlling the first coloured light and second
The driving current intensity of coloured light or current duty cycle allocate the first coloured light and the brightness ratio of the second coloured light.
The colour gamut control method of 17. optical projection systems according to claim 16, it is characterised in that changed by described signal
Portion, the gray value of described first primary lights signal is configured to a, described first control signal gray value is configured to b and
Described second control signal gray value is configured to c, the mixed light of described first coloured light and described second coloured light and described first
Primary lights signal meets following relation in brightness and chromaticity coordinates:
Wherein LR' it is the high-high brightness of the first primary lights signal, LRIt is the high-high brightness of the first coloured light, LOIt it is the maximum of the second coloured light
Brightness, the chromaticity coordinates of the first primary lights signal is that (x, y), the first coloured light chromaticity coordinates is (xR,yR), the second coloured light color is sat
It is designated as (xO,yO)。
The colour gamut control method of 18. optical projection systems according to claim 17, it is characterised in that changed by described signal
The gray value of described first primary lights signal, described first control signal gray value and the second control signal gray value are configured by portion
For same value a, the mixed light of described first coloured light and described second coloured light is sat in brightness and color with described first primary lights signal
Put on satisfied following relation:
LR'=LR+LO
Wherein LR' it is the high-high brightness of the first primary lights signal, LRIt is the high-high brightness of the first coloured light, LOIt it is the maximum of the second coloured light
Brightness, the chromaticity coordinates of the first primary lights signal is that (x, y), the first coloured light chromaticity coordinates is (xR,yR), the second coloured light color is sat
It is designated as (xO,yO)。
19. according to the colour gamut control method of optical projection system described in claim 16, it is characterised in that described light source drive control part
Also control tertiary color light or the driving current intensity of the 4th coloured light or dutycycle, make data to be displayed reach predetermined putting down in vain
Weighing apparatus；Or, described signal conversion part also configures that the gray value of the 3rd control signal adjusts tertiary color brightness and configuration the 4th control
The gray value of signal adjusts the brightness of the 4th coloured light, makes data to be displayed reach predetermined white balance.
20. according to the colour gamut control method of optical projection system described in claim 16, it is characterised in that described signal conversion part is institute
State control system DDP of spatial light modulator or for independent of the chromacoder of described spatial light modulator.
21. according to the colour gamut control method of optical projection system described in claim 16, it is characterised in that described first coloured light is HONGGUANG,
Described second coloured light is orange light, and described tertiary color light is green glow, and described 4th coloured light is blue light；Described first primary lights signal
For HONGGUANG, described second primary lights signal is green glow, and described three primary colours optical signal is blue light.
22. according to the colour gamut control method of optical projection system described in claim 16, it is characterised in that described first coloured light is green glow,
Described second coloured light is dark green light, and described tertiary color light is HONGGUANG, and described 4th coloured light is blue light；Described first primary lights letter
Number being green glow, described second primary lights signal is HONGGUANG, and described three primary colours optical signal is blue light.
23. according to the colour gamut control method of optical projection system described in any one of claim 16 to 22, it is characterised in that described light source
Including excitation source, the first monochromatic illuminating source and the rotatable color wheel being placed on described light source optical axis, described colour wheel includes depending on
The transparent diffuser of secondary setting, orange fluorescent powder section, green emitting phosphor section and scattering section.
24. according to the colour gamut control method of optical projection system described in claim 23, it is characterised in that described excitation source is blue light
Laser instrument, the described first monochromatic illuminating source is red laser, and described blue laser is at the orange fluorescent powder of described colour wheel
Section, green emitting phosphor section or scattering section are opened when being on light source optical axis；Described red laser is at described diffusion transparent section
Open time on light source optical axis.
25. according to the colour gamut control method of optical projection system described in claim 24, it is characterised in that described blue laser sends
Blue laser dominant wavelength be 445nm, the dominant wavelength of the red laser that described red laser instrument sends is 638nm.
26. according to the colour gamut control method of optical projection system described in claim 16, it is characterised in that the also outgoing the 5th of described light source
Coloured light, described 5th coloured light immediately tertiary color light sequential outgoing, described second primary lights signal is also turned by described signal conversion part
It is changed to the 3rd control signal and the 5th control signal；Spatial light modulator under the effect of described 5th control signal to being incident on
5th coloured light thereon is modulated；It is characterized in that, described tertiary color light and the described 5th mixed brightness of coloured light with treat
The second primary lights luminance signals that video data parses is identical, described tertiary color light and the described 5th mixed color of coloured light
The chromaticity coordinates of the second primary lights signal that coordinate parses with data to be displayed is identical.
27. according to the colour gamut control method of optical projection system described in claim 26, it is characterised in that described first coloured light is HONGGUANG,
Described second coloured light is orange light, and described tertiary color light is green glow, and described 4th coloured light is blue light, and the 5th coloured light is dark green light；
Described first primary lights signal is HONGGUANG, and described second primary lights signal is green glow, and described three primary colours optical signal is blue light.
28. according to the colour gamut control method of optical projection system described in claim 16,26 or 27, it is characterised in that described light source bag
Include excitation source, the first monochromatic illuminating source, the second monochromatic illuminating source and the rotatable color wheel being placed on described light source optical axis,
The first transparent diffuser that described colour wheel includes setting gradually, orange fluorescent powder section, green emitting phosphor section, the second transparent diffusion
Section and scattering section.
The colour gamut control method of 29. optical projection systems according to claim 28, it is characterised in that described excitation source is blue
Light laser, the described first monochromatic illuminating source is red laser, and described second monochrome light emitting elements is dark green light laser；
Described blue laser is opened when being on light source optical axis in orange fluorescent powder section, green emitting phosphor section or the scattering section of described colour wheel
Open；Described red laser spreads when transparent section is on light source optical axis described first to be opened, and described dark green light laser exists
Described second transparent diffuser or described orange fluorescent powder are on light source optical axis unlatching.
30. according to the colour gamut control method of optical projection system described in claim 29, it is characterised in that described blue laser sends
Blue laser dominant wavelength be 445nm, the dominant wavelength of the red laser that described red laser sends is 638nm, described viridescent
The dominant wavelength of the dark green laser that light laser sends is 530nm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510165698.7A CN106154711B (en) | 2015-04-09 | 2015-04-09 | A kind of optical projection system and its colour gamut control method |
| PCT/CN2016/078540 WO2016161934A1 (en) | 2015-04-09 | 2016-04-06 | Projection system and method for controlling color gamut thereof |
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| CN201510165698.7A CN106154711B (en) | 2015-04-09 | 2015-04-09 | A kind of optical projection system and its colour gamut control method |
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| CN106154711B CN106154711B (en) | 2018-07-24 |
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| WO (1) | WO2016161934A1 (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353956A (en) * | 2015-07-13 | 2017-01-25 | 深圳市光峰光电技术有限公司 | Projection display system and control method thereof |
| CN106952584A (en) * | 2017-04-25 | 2017-07-14 | 深圳市德彩光电有限公司 | LED traffic display screen colour gamut implementation methods |
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| WO2019037329A1 (en) * | 2017-08-24 | 2019-02-28 | 深圳光峰科技股份有限公司 | Projection system |
| CN109474810A (en) * | 2017-09-07 | 2019-03-15 | 佳能株式会社 | Projection device and its control method and storage medium |
| CN110007550A (en) * | 2018-01-04 | 2019-07-12 | 深圳光峰科技股份有限公司 | Light-source system and projection device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107357124B (en) * | 2017-08-08 | 2023-04-28 | 合肥全色光显科技有限公司 | Multi-primary-color double DMD laser projection display device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004151649A (en) * | 2002-11-01 | 2004-05-27 | Seiko Epson Corp | Projector |
| JP2004163817A (en) * | 2002-11-15 | 2004-06-10 | Seiko Epson Corp | Projector |
| JP2011191602A (en) * | 2010-03-16 | 2011-09-29 | Seiko Epson Corp | Projector |
| CN102418905A (en) * | 2010-12-30 | 2012-04-18 | 绎立锐光科技开发(深圳)有限公司 | Multicolor luminous device |
| CN202615106U (en) * | 2012-01-14 | 2012-12-19 | 深圳市光峰光电技术有限公司 | Light-emitting device and projection system |
| US20130321718A1 (en) * | 2012-05-29 | 2013-12-05 | Delta Electronics, Inc. | Projection apparatus for providing multiple viewing angle images |
| CN103576439A (en) * | 2012-07-23 | 2014-02-12 | 深圳市亿思达显示科技有限公司 | 3D laser projector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103809350B (en) * | 2013-09-03 | 2017-01-11 | 杨毅 | Display system and display device |
-
2015
- 2015-04-09 CN CN201510165698.7A patent/CN106154711B/en active Active
-
2016
- 2016-04-06 WO PCT/CN2016/078540 patent/WO2016161934A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004151649A (en) * | 2002-11-01 | 2004-05-27 | Seiko Epson Corp | Projector |
| JP2004163817A (en) * | 2002-11-15 | 2004-06-10 | Seiko Epson Corp | Projector |
| JP2011191602A (en) * | 2010-03-16 | 2011-09-29 | Seiko Epson Corp | Projector |
| CN102418905A (en) * | 2010-12-30 | 2012-04-18 | 绎立锐光科技开发(深圳)有限公司 | Multicolor luminous device |
| CN202615106U (en) * | 2012-01-14 | 2012-12-19 | 深圳市光峰光电技术有限公司 | Light-emitting device and projection system |
| US20130321718A1 (en) * | 2012-05-29 | 2013-12-05 | Delta Electronics, Inc. | Projection apparatus for providing multiple viewing angle images |
| CN103576439A (en) * | 2012-07-23 | 2014-02-12 | 深圳市亿思达显示科技有限公司 | 3D laser projector |
Cited By (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353956A (en) * | 2015-07-13 | 2017-01-25 | 深圳市光峰光电技术有限公司 | Projection display system and control method thereof |
| CN106353956B (en) * | 2015-07-13 | 2019-02-01 | 深圳光峰科技股份有限公司 | The control method and projection display system of projection display system |
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| CN109474810A (en) * | 2017-09-07 | 2019-03-15 | 佳能株式会社 | Projection device and its control method and storage medium |
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| WO2019174275A1 (en) * | 2018-03-16 | 2019-09-19 | 深圳光峰科技股份有限公司 | Display device |
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| CN114077139A (en) * | 2020-08-21 | 2022-02-22 | 成都极米科技股份有限公司 | Three-color light source equipment and projection display equipment |
| WO2022037196A1 (en) * | 2020-08-21 | 2022-02-24 | 成都极米科技股份有限公司 | Three-color light source device and projection display device |
| CN114245087A (en) * | 2020-09-08 | 2022-03-25 | 青岛海信激光显示股份有限公司 | Projection system and correction method of projected image |
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| Publication number | Publication date |
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| CN106154711B (en) | 2018-07-24 |
| WO2016161934A1 (en) | 2016-10-13 |
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