CN106154711B - A kind of optical projection system and its colour gamut control method - Google Patents
A kind of optical projection system and its colour gamut control method Download PDFInfo
- Publication number
- CN106154711B CN106154711B CN201510165698.7A CN201510165698A CN106154711B CN 106154711 B CN106154711 B CN 106154711B CN 201510165698 A CN201510165698 A CN 201510165698A CN 106154711 B CN106154711 B CN 106154711B
- Authority
- CN
- China
- Prior art keywords
- light
- coloured light
- signal
- coloured
- primary colours
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
-
- 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 of display are resolved to primary colours optical signal by control system, one of primary colour signal is switched to 2 control signals by chromacoder, this two control signals control a kind of coloured light and are modulated on DMD respectively, this two control signals control the consistent with the resolved primary colours optical signal of the brightness after the first coloured light and the second Colored light mixing and chromaticity coordinates setting.This optical projection system controls two close coloured light in sequential by a primary colours optical signal and carries out sequential closing light, improves the utilization rate of coloured light；To brightness and the chromaticity coordinates of the brightness and chromaticity coordinates of the first coloured light and the second coloured light that carry out sequential closing light set with reference to the first primary lights, it ensure that picture quality, in addition can easily adjust colour gamut by the brightness ratio being arranged between the first coloured light and the second coloured light.The colour gamut that especially can be easily adjusted when there is multiple such optical projection system tiled displays.
Description
Technical field
The present invention relates to projecting apparatus fields, more specifically, being related to a kind of optical projection system and its colour gamut control method.
Background technology
Currently, DLP projection display techniques obtain extensive use, core component spatial light modulator in field of projection display
The characteristics of DMD is with its fast response time can realize that colour projection shows, so that monolithic with the primary lights that sequential switches
Formula DMD optical projection systems become a kind of more mature technology.One chip DMD optical projection systems are simple in structure with its, and cost is relatively low,
Middle and low-end market extensive use.In terms of the light source of optical projection system, it is sharp that United States Patent (USP) US7547114B2 provides a kind of semiconductor
Light device excites method of the different fluorescence pink colour sections to form different base colors light on colour wheel, this method to have light efficiency height, etendue
Small advantage is measured, therefore is quickly grown, the ideal chose of projector light source is become.In existing LASER Excited Fluorescence powder light source
In, since the red light fluorescent powder or orange light phosphor powder launching efficiency that generate feux rouges are relatively low, while the fluorescence generated also needs to coordinate
Corresponding optical filter filters out short-wavelength light and so that feux rouges is purer, this causes finally obtained feux rouges fluorescence efficiency very low.Therefore right
For system, feux rouges brightness proportion in overall brightness is relatively low, this leads to poor quality images.In practical applications,
Different occasions is different for the colour gamut requirement of optical projection system, therefore optical projection system needs to realize different colour gamuts.It is current main
It to be adjusted by the control program DDP color domains of DMD, be by CCA (color coordinate specifically
Adjust) algorithm is adjusted the chromaticity coordinates of three primary colours.
Existing DMD optical projection systems are 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 its control device 109, projection lens 110.
Laser light source 101 uses 445nm blue laser modules, is incident on after the focusing of collecting lens 102 as shown in Figure 2
On fluorescent powder color wheel 103, colour wheel divides three parts, blue section to be coated with scattering powder so that blue laser, which disappears, to be emitted after partial ocoherence, green
Color section and red color segment, blue LASER Excited Fluorescence powder generates green fluorescence and red fluorescence generates sequential after rotating color wheel
Three primary colours light, colour gamut are as shown in Figure 3.The light of colour wheel outgoing carries out even after the collection of collecting lens 104 into square rod 105
Light is incident at TIR prism 107 through light relay system 106 after even light, is reached DMD108 after being reflected at TIR prism, is passed through
After DMD control devices 109 (i.e. DDP) processing, by modulated light transmission TIR prism 107, reach projection lens 110, finally at
Picture.The working method of DMD control devices 109 is input to DMD control dresses as shown in figure 4, DVI decodes the RGB image signal come
DDP is set, DDP is after CCA algorithm process, and output RGB three primary colours light signals are sent into DMD, and DMD is according to the gray value per road signal
Size is overturn.CCA algorithms are corrected for chromaticity coordinates, by taking the photochromic Coordinate Adjusting of red primary as an example, if feux rouges chromaticity coordinates needs
It corrects, then DDP can be controlled in green light part incorporation feux rouges, to realize the correction of feux rouges.Such as vision signal RGB is
(255,0,0), then the rgb signal that DDP is parsed is (255,1,0), such.In the process, due to green light distance
Farther out, therefore feux rouges timing does not need to mix too many green light the chromaticity coordinates of feux rouges, this does not have the luminance raising of feux rouges
Helpful, picture quality is still poor.Therefore, how to realize that a kind of colour gamut is adjustable, while can guarantee high image quality again
Optical projection system becomes an important project.
Invention content
To solve the above problems, the present invention provides a kind of optical projection system, including light source and control system, the light source carry
For at least four coloured light of sequential outgoing, including the first coloured light, the second coloured light, third coloured light and the 4th coloured light；The control system
System includes lsb decoder, signal conversion part and spatial light modulator；
The lsb decoder is used to data to be shown resolving to the first primary colours optical signal, the second primary colours optical signal and third
Primary colours optical signal；The signal conversion part is used to the first primary colours optical signal being converted to first control signal and the second control
Second primary colours optical signal is converted to third and controls signal by signal, and third primary colours optical signal is converted to the 4th control signal；
Spatial light modulator is modulated incident the first coloured light on it under the action of the first control signal,
Incident the second coloured light on it is modulated under second control signal effect, to entering under the action of third controls signal
The third coloured light penetrated on it is modulated, and is adjusted to incident the 4th coloured light on it under the action of the 4th control signal
System；
The first primary colours that brightness after first coloured light and second Colored light mixing is parsed with data to be displayed
Optical signal brightness is identical, the chromaticity coordinates after first coloured light and second Colored light mixing and data to be displayed separate out the
The chromaticity coordinates of one primary colours optical signal is identical.
By foregoing description it is found that optical projection system provided by the invention controls two in sequential by a primary colours optical signal
Upper close coloured light carries out sequential closing light, improves the utilization rate of coloured light；To carrying out the first coloured light and the second color of sequential closing light
The brightness and chromaticity coordinates of the brightness of light and the setting of chromaticity coordinates with reference to the first primary lights, ensure that picture quality, in addition can lead to
The brightness ratio crossed between the first coloured light of setting and the second coloured light can easily adjust colour gamut.Especially when have it is multiple in this way
Optical projection system tiled display when the colour gamut that can easily adjust.
Another aspect of the invention provides a kind of colour gamut method of adjustment of optical projection system, and the optical projection system includes light
Source and control system, the light source provide at least four coloured light of sequential outgoing, including the first coloured light, the second coloured light, third color
Light and the 4th coloured light；
The control system includes lsb decoder, signal conversion part and spatial light modulator, and the lsb decoder will be for that will wait showing
The data shown resolve to the first primary colours optical signal, the second primary colours optical signal and third primary colours optical signal；The signal conversion part is used
In the first primary colours optical signal is converted to first control signal and second control signal, the second primary colours optical signal is converted to
Third controls signal, and third primary colours optical signal is converted to the 4th control signal；
Spatial light modulator is modulated incident the first coloured light on it under the action of the first control signal,
Incident the second coloured light on it is modulated under second control signal effect, to entering under the action of third controls signal
The third coloured light penetrated on it is modulated, and is adjusted to incident the 4th coloured light on it under the action of the 4th control signal
System；
The first primary colours that brightness after first coloured light and second Colored light mixing is parsed with data to be displayed
Optical signal brightness is identical, the chromaticity coordinates after first coloured light and second Colored light mixing and data to be displayed separate out the
The chromaticity coordinates of one primary colours optical signal is identical.
This control method controls the first coloured light and the mixed chromaticity coordinates of the second coloured light is identical as the first primary colour signal, the
One is also identical as the signal of the first primary lights as the chromaticity coordinates after the second Colored light mixing, by adjusting the first coloured light and the second coloured light
Between ratio can easily control the colour gamut of optical projection system, the optical projection system that can make adapts to and different display standards
It is required that.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
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 of existing DMD control devices；
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 1 optical projection system of the embodiment of the present invention；
Fig. 7 is the control system figure of 1 optical projection system of the embodiment of the present invention.
Fig. 8 is that the embodiment of the present invention 1 controls signal control DMD modulation coloured light sequence diagrams；
Fig. 9 is the corresponding driving current intensity map of 1 white light of the embodiment of the present invention；
Figure 10 is 1 gamut map of the embodiment of the present invention；
Figure 11 is that the present invention implements the corresponding driving current duty ratio schematic diagram of 1 white light；
Figure 12 is control system figure when 1 first control signal of the embodiment of the present invention is worth identical with second control signal；
Figure 13 is control system figure when 2 signal of the embodiment of the present invention converts external；
Figure 14 is the colour wheel structure chart of 4 optical projection system of the embodiment of the present invention.
Figure 15 is 4 gamut map of the embodiment of the present invention；
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical scheme of the present invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.The present invention is projected
The control method of system gamut combines being illustrated for optical projection system in embodiments, no longer separately illustrates to save space.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts all
Other embodiment shall fall within the protection scope of the present invention.
Embodiment 1
To solve the problems, such as to propose in the prior art, the present invention provides projection display system or optical projection system color
Domain control method, including light source and control system, light source can sequential be emitted at least four coloured light, such as can be that transmitting is different
The light source timesharing of color shines and forms sequential coloured light, preferably selects common solid state light emitter laser or LED, or select rotation
Colour wheel emits sequential light.Light source in the present invention includes that excitation light source, monochromatic illuminating source and colour wheel 505, excitation light source are
Emit the laser or laser module 501 of 445nm blue lights, monochromatic illuminating source is the red laser for emitting 638nm feux rouges
Or red laser module 502.Colour wheel is four-part form, for being emitted the first coloured light, the second coloured light, third coloured light and the 4th color
Light, specific first coloured light be the feux rouges that generates of red laser or red laser module 502 (for ease of understanding, hereafter
Referred to as red laser), the second coloured light be 445nm indigo plant laser excitations colour wheel 505 on orange fluorescent powder section generate orange light (for ease of reason
Solution, hereinafter referred to as orange fluorescence), third coloured light is green light and the 4th coloured light is blue light.The transparent diffuser of the four-part form colour wheel
Section is emitted red laser, the orange fluorescence of orange light phosphor powder section outgoing, green light fluorescent powder section and is emitted green fluorescence, and scattering section is emitted blue light.
Third coloured light green light and the 4th coloured light blue light can also be by green luminescence element such as green laser or blue laser in this programme
Device provides.
Fig. 5 shows the concrete structure of present embodiment optical projection system, includes the 445nm blue lasers as excitation light source
Device 501, the red laser 502 as monochromatic illuminating source, dichroscope 503, collecting lens 504 and 506, colour wheel 505, side
Stick 507, light relay system 508, TIR prism 509, dmd chip 510 and signal conversion part 511, projection lens 512.Excitation light source
The red laser that the 501 blue laser sent out are sent out with red laser 502 closing light at dichroscope 503, dichroscope transmission are blue
Light reflection feux rouges, the light beam after closing light are focused on through collecting lens 504 on colour wheel 505, and red laser can also be placed on colour wheel
Closing light is carried out with by the light of colour wheel later, present embodiment is for citing, other closing light positions and light combination mode are herein no longer
It enumerates.Colour wheel 505 is four-part form colour wheel as shown in FIG. 6, wherein orange fluorescent powder of the blue laser 501 in colour wheel
Section, green emitting phosphor section or scattering section are opened when being on light source optical axis, blue laser excitation green light fluorescent powder section and orange light fluorescence
Powder section transmits after generating green fluorescence and orange fluorescence；It is transmitted after scattering section indigo plant laser is scattered.Transmiting diffuser sections (also
It is diffuer sections transparent) blue light swashs device 501 and closes, and red laser 502 is opened, and the collimated lens of red laser 504 focus on
It is transmitted after diffuser sections.The sequential light that colour wheel 505 is emitted enters square rod 507 after collecting lens 506, is relayed through light after even light
System 508 reaches at TIR prism 509, and dmd chip 510 is reached after reflection, under the signal control that signal conversion part 511 is converted,
Dmd chip 510 is modulated incident light, it is modulated after light transmission TIR prism 509, finally through projection lens 512 be imaged.
Colour wheel in present embodiment can also use total-reflection type structure, as long as being capable of providing at least four coloured light of sequential outgoing i.e.
It can.Colour wheel in present embodiment only illustrates books scheme as a kind of preferred embodiment, as previously mentioned, colour wheel can also be only
Including orange fluorescent powder is for providing orange fluorescence, other coloured light can 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 wait for
The data of display resolve to the first primary colours optical signal R, the second primary colours optical signal G and third primary colours optical signal B；Signal conversion part
511 be the control unit DDP of DMD, and present embodiment is made it have signal and turned by the program of the control unit DDP of modification DMD
Change function.Modified DDP its first primary colours optical signal R is converted into first control signal R1 and second control signal R1
Or R2, the second primary colours optical signal G is converted into third and controls signal G1, third primary colours optical signal B, which is converted to the 4th control, to be believed
Number B1；Spatial light modulator is digital micro-mirror DMD, under the action of the first control signal R1 to it is incident on it the
The red laser of a shade is modulated, and is adjusted to incident the second coloured light orange fluorescence on it under second control signal R2 effects
System is modulated incident third coloured light green fluorescence on it under the action of third controls signal G1, in the 4th control letter
Incident the 4th coloured light indigo plant laser on it is modulated under the action of number B1.Four above-mentioned coloured light are not limited to laser,
Can be the light that LED is generated.When DMD is modulated sequential coloured light, by the red laser of the first coloured light and second coloured light orange
The first primary colours optical signal R brightness that the mixed brightness of fluorescence is parsed with data to be displayed is set as identical, first color
The first primary colours optical signal R that the red laser of light and the mixed chromaticity coordinates of the second coloured light orange fluorescence are separated out with data to be displayed
Chromaticity coordinates be set as identical, ensure display picture quality.
Data to be displayed is decoded as the first primary colours optical signal R, the second primary colours optical signal G and third primary colours optical signal by DVI
B, above-mentioned primary colours optical signal are converted to tetra- control signals of R1, R2, G1, B1 through DDP processing, are equivalent to the first primary colours optical signal R
It is repeated in sequential, at this point, practical incident light and the signal of DMD processing are as shown in figure 8, i.e. in R1 and R2 on DMD
In the time for controlling signal, DMD has actually handled red laser R and orange fluorescence O respectively.Specifically, as shown in figure 12, it is assumed that
First primary colours optical signal R gray values are a (0≤a≤255), after signal conversion part DDP processing gray value become b and c (0≤b,
C≤255), then after two sections of sequential mixing, the feux rouges brightness being actually emitted is a/255LR’(LR' it is that red laser is most light
Degree), chromaticity coordinates is (x, y), and the brightness being actually emitted refers to the intrinsic brilliance that human eye receives, and that is to say gray-scale intensity, such as
a/255·LR’；Assuming that the red laser brightness of red sharp device transmitting is b/255LR(LRFor the maximum brightness of red laser), color is sat
It is designated as (xR,yR), the orange fluorescent brightness that excitation orange fluorescent powder generates is c/255LO(LOFor fluorescent orange maximum brightness), color
Coordinate is (xO,yO), then above each parameter meets following relationship：
That is it is c's that the gray value a of the first primary colours optical signal, which is converted into the first control signal that gray value is b and gray value,
Second control signal changes first control signal gray value b and second control signal gray value c, by the overturning journey for controlling DMD
Degree can change the ratio between red laser and orange fluorescence, to change the chromaticity coordinates of red laser and feux rouges after orange fluorescence mixing,
At the same time, the gray value of corresponding green fluorescence and the blue light being scattered is also required to be changed, and feux rouges is kept after cooperation mixing
White balance.The above signal conversion is all that the signal conversion part 511 by control system is specifically by modified DDP
It is directly realized by.
Believe in order to make it easy to understand, the gray value a of the first primary colours optical signal is controlled by signal conversion part 511 transformed first
Number and the gray value of second control signal be all set as a, it is assumed that the first primary colours optical signal R signal gray value is a (0≤a≤255),
After DDP is converted, the gray value of the first and second control signals is all a, and gray value, which is all that the first control signal control of a is red, to swash
It is that orange fluorescence is modulated in spatial light modulator that light and second control signal, which control the second primary lights, red laser and orange fluorescence
After being mixed in sequential, the feux rouges brightness being actually emitted is a/255LR’(LR' be feux rouges maximum brightness), chromaticity coordinates be (x,
Y), it is assumed that red laser R brightness is a/255LR(LRFor the maximum brightness of red laser), chromaticity coordinates is (xR,yR), orange light O
Brightness is a/255LO(LOFor the maximum brightness of fluorescent orange), chromaticity coordinates is (xO,yO), then above each parameter meets following
Relational expression：
LR'=LR+LO
Using realizes the sequential closing light of red laser and fluorescent orange with upper type, and the two is mixed to get needed for system
Feux rouges, brightness LR', chromaticity coordinates is (x, y).Since feux rouges is mixed to get by two kinds of light, if the ratio of two kinds of light occurs
Variation, then the feux rouges chromaticity coordinates obtained after mixing can also occur to change accordingly.
Control system further includes light source drive control part, and the light source drive control part is by controlling the first coloured light and second
The brightness ratio of driving current intensity or current duty cycle allotment the first coloured light and the second coloured light of coloured light.Light source drive control part
The also driving current intensity or duty ratio of control third coloured light either the 4th coloured light, makes data to be displayed reach scheduled white flat
Weighing apparatus；Or, the signal conversion part also configures the gray value of third coloured light or the 4th coloured light, data to be displayed is made to reach scheduled
White balance, white balance refer to that various Colored light mixings meet wanting for certain standard to the chromaticity coordinates of the white light obtained together later
It asks, such as requirements (0.31,0.33) of the REC.709 to white light, requirement (0.314,0.351) of the DCI standard to white light.
In the foregoing description, red laser brightness LRWith fluorescent orange brightness LOIt is driven by it size of current decision, because
This, changes red laser and the corresponding driving current of exciting light sources, you can change by the light source drive control part of control system
Redden laser brightness LRWith orange fluorescence LOCorresponding brightness, to change finally obtained feux rouges chromaticity coordinates, as shown in figure 9, reducing
The driving current intensity of the corresponding excitation light source of orange fluorescence section, improves the intensity of the red red laser drive current of laser section, can carry
Ratio of the high red laser in the two, so that mixed feux rouges coordinate is to redder Directional Extension, as shown in Figure 10.Together
When, in order to ensure that white balance is constant after colour gamut changes, need corresponding adjusting scattering blue light and the corresponding excitation light source of green fluorescence
Driving current intensity.
Preferably, as shown in figure 11, light source drive part control unit uses PWM drive current modulation system, each by changing
The duty ratio of section driving current, adjusts electric current excitation intensity, to change each section of brightness, is changing the same of feux rouges chromaticity coordinates
When, keep white balance.
Embodiment 2
Present embodiment and the above embodiment the difference is that, signal conversion part 511 is different from DDP, to be external
The device of signal conversion in terms of DMD controls program DDP, need to change its intrinsic program and implement in the above-described embodiments
Colour wheel, light sequential in example is corresponding, and the present embodiment does not change the intrinsic programs of DDP, using external signal conversion equipment 511, example
Such as FPGA, as shown in figure 13.The first primary colours optical signal R, the second primary colours optical signal G and the third primary lights that DVI is parsed
Signal B becomes first control signal R1, second control signal O1 after chromacoder 511, third control signal G1 and
4th control signal B1, DDP is arranged to four-part form, respectively R1, O1, G1 and B1 section, control DMD handle respectively the first coloured light,
Second coloured light, third coloured light and the 4th coloured light.Specifically, the first primary colours optical signal R, the second primary lights that DVI is parsed
In signal G and third primary colours optical signal B, the first primary colours optical signal R becomes R1 and O1 and controls after chromacoder 511
Signal determines that the color of the feux rouges obtained after the first coloured light and the second Colored light mixing is sat according to the gray value ratio for the two
Mark, such as the signal that DVI is parsed is (255,100,100), after chromacoder 511, become (255,255,100,
100), in other words, first control signal R1 and second control signal O1 is not independent, and the two is interrelated, the first coloured light
It will not individually be handled as primary lights with the second coloured light.If changing first control signal R1 and second control signal O1's
The ratio of first the second coloured light of coloured light, the feux rouges obtained after the two mixing can be changed by the overturning overturning degree of DMD for gray value
Chromaticity coordinates can also change, at the same time, in order to ensure white balance, the corresponding value for changing green fluorescence and blue laser, such as DVI solutions
The signal separated out is (255,100,100) to be become (255,240,98,110) after chromacoder 511, all such
Class.
Embodiment 3
Present embodiment difference from example 1 is that, the first coloured light is green light, and the second coloured light is dark green light, the
Three coloured light is feux rouges, and the 4th coloured light is blue light；The first primary colours optical signal is green light, and the second primary colours optical signal is
Feux rouges, the third primary colours optical signal are blue light.By adjusting the ratio of green fluorescence and dark green laser, different green light colors is obtained
Coordinate realizes different colour gamuts.The switching between different colour gamuts, such as REC.709 and DCI colour gamuts can be achieved in the present invention as a result,
The switching of standard, and in colour gamut handoff procedure, by adjusting the ratio of three primary colours, keep white balance constant, benefit exists
In on the basis of keeping feux rouges brightness ratio, while realizing the switching at runtime of colour gamut, can realize that the image of high quality is aobvious
Show.
Embodiment 4
The light source is also emitted the 5th coloured light on the basis of embodiment 1 -- and dark green light is selected in present embodiment dark green
Laser can also be other dark green light, and immediately green fluorescence sequential is emitted the viridescent laser, and the signal conversion part 511 is also by institute
It states the second primary colours optical signal G and is converted to the third control signals of control signal G1 and the 5th C1；Spatial light modulator 505 is described
Incident dark green laser on it is modulated under the action of five control signal C1；Green fluorescence and dark green laser are mixed bright
Spend, green fluorescence and light viridescent laser mixed color identical as the second primary colours optical signal G brightness that data to be displayed parses
Coordinate is identical as the chromaticity coordinates for the second primary colours optical signal G that data to be displayed parses.The dark green laser of present embodiment addition
As the second monochromatic illuminating source, while colour wheel is set as five-part form, as shown in figure 14, each section of five-part form colour wheel respectively is
For transmit the first diffuser sections of red laser, orange fluorescent powder section, green fluorescence powder section, the second segment for transmiting dark green laser
Diffuser sections scatter section with the blue light for scattering blue laser.Such as laser in embodiment 1, in present embodiment, red laser is still
The red lasers of 638nm, dark green laser is selected to select 530nm viridescent lasers.Orange of the blue laser 501 in the colour wheel 505
Color fluorescent powder section, green emitting phosphor section or scattering section are opened when being on light source optical axis；Red laser 502 expands described first
It dissipates when transparent section is on light source optical axis and opens, the viridescent light laser is in light source optical axis in the described second transparent diffuser
Upper unlatching.
The regulative mode of dark green laser and green fluorescence, can be with the modulation system of red laser and orange fluorescence in embodiment 1
It is to adjust each section of gray value by control system either to adjust driving current intensity or duty ratio by light source drive control part.
Change red laser in aforesaid way with orange fluorescence or change the ratio of dark green laser and green fluorescence, or change simultaneously red laser with
The ratio of orange Fluorescence Ratio, dark green laser and green fluorescence, thus it is possible to vary the chromaticity coordinates of the feux rouges and green light that are finally emitted, to reach
To different colour gamuts, the gamut transform between REC.709 and DCI is realized as shown in figure 15, and during gamut transform, adjusted
The ratio between three primary colours light is saved, white balance is kept.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (30)
1. a kind of optical projection system, including light source and control system, which is characterized in that the light source provides at least the four of sequential outgoing
Kind coloured light, including the first coloured light, the second coloured light, third coloured light and the 4th coloured light；The control system includes lsb decoder, signal turn
Change portion and spatial light modulator；
The lsb decoder is used to data to be shown resolving to the first primary colours optical signal, the second primary colours optical signal and third primary colours
Optical signal；The signal conversion part is used to the first primary colours optical signal being converted to first control signal and the second control is believed
Number, the second primary colours optical signal is converted into third and controls signal, third primary colours optical signal is converted into the 4th control signal；
Spatial light modulator is modulated incident the first coloured light on it under the action of the first control signal, the
Incident the second coloured light on it is modulated under two control signal functions, to being incident under the action of third controls signal
Third coloured light thereon is modulated, and is modulated to incident the 4th coloured light on it under the action of the 4th control signal；
Brightness after first coloured light and second Colored light mixing is believed with the first primary lights that data to be displayed parses
Number brightness is identical, the first base that the chromaticity coordinates after first coloured light and second Colored light mixing is separated out with data to be displayed
The chromaticity coordinates of coloured light signal is identical；
The control system further includes light source drive control part, and the light source drive control part is by controlling the first coloured light and second
The brightness ratio of driving current intensity or current duty cycle allotment the first coloured light and the second coloured light of coloured light.
2. optical projection system according to claim 1, which is characterized in that by the signal conversion part, by first base
The gray value of coloured light signal is configured to a, configures the first control signal gray value to b and by the second control signal
Gray value is configured to c, the mixed light of first coloured light and second coloured light and the first primary colours optical signal in brightness and
Meet following relationship on chromaticity coordinates：
Wherein LR' be the first primary colours optical signal maximum brightness, LRFor the maximum brightness of the first coloured light, LOMost for the second coloured light
The chromaticity coordinates of big brightness, the first primary colours optical signal is (x, y), and the first coloured light chromaticity coordinates is (xR,yR), the second coloured light chromaticity coordinates is
(xO,yO)。
3. optical projection system according to claim 2, which is characterized in that by the signal conversion part by first primary colours
The gray value of optical signal, the first control signal gray value and second control signal gray value are configured to same value a, and described
The mixed light of a shade and second coloured light meets following relationship with the first primary colours optical signal in brightness and chromaticity coordinates：
LR'=LR+LO
Wherein LR' be the first primary colours optical signal maximum brightness, LRFor the maximum brightness of the first coloured light, LOMost for the second coloured light
The chromaticity coordinates of big brightness, the first primary colours optical signal is (x, y), and the first coloured light chromaticity coordinates is (xR,yR), the second coloured light chromaticity coordinates is
(xO,yO)。
4. optical projection system according to claim 1, which is characterized in that the light source drive control part also control third coloured light or
The driving current intensity or duty ratio of the 4th coloured light of person, make data to be displayed reach scheduled white balance；Or, the signal turns
The portion of changing also configures the gray value adjustment of the 4th control signal of gray value adjustment third coloured light brightness and configuration of third control signal
The brightness of 4th coloured light makes data to be displayed reach scheduled white balance.
5. optical projection system according to claim 1, which is characterized in that the signal conversion part is the spatial light modulator
Control system DDP is the chromacoder independently of the spatial light modulator.
6. optical projection system according to claim 1, which is characterized in that first coloured light is feux rouges, and second coloured light is
Orange light, the third coloured light are green light, and the 4th coloured light is blue light；The first primary colours optical signal be feux rouges, described second
Primary colours optical signal is green light, and the third primary colours optical signal is blue light.
7. optical projection system according to claim 1, which is characterized in that first coloured light is green light, and second coloured light is
Dark green light, the third coloured light are feux rouges, and the 4th coloured light is blue light；The first primary colours optical signal is green light, described the
Two primary lights signals are feux rouges, and the third primary colours optical signal is blue light.
8. according to any one of claim 1 to 7 optical projection system, which is characterized in that the light source includes excitation light source, first
Monochromatic illuminating source and the rotatable color wheel being placed on the light source optical axis, the colour wheel includes the transparent diffusion set gradually
Section, orange fluorescent powder section, green emitting phosphor section and scattering section.
9. optical projection system according to claim 8, which is characterized in that the excitation light source be blue laser, described first
Monochromatic illuminating source is red laser, orange fluorescent powder section, green emitting phosphor section of the blue laser in the colour wheel
Or it scatters when section is on light source optical axis and opens；The red laser is opened when the diffusion transparent section is on light source optical axis
It opens.
10. optical projection system according to claim 9, which is characterized in that the main wave of blue laser that the blue laser is sent out
The dominant wavelength of a length of 445nm, the red laser that red laser is sent out are 638nm.
11. optical projection system according to claim 1, which is characterized in that the light source is also emitted the 5th coloured light, the five colors
Immediately third coloured light sequential is emitted light, and the second primary colours optical signal is also converted to third and controls signal by the signal conversion part
With the 5th control signal；Spatial light modulator under the action of the 5th control signal to incident the 5th coloured light on it into
Row modulation；It is characterized in that, the third coloured light and the mixed brightness of the 5th coloured light are parsed with data to be displayed
The second primary lights luminance signals it is identical, the third coloured light and the mixed chromaticity coordinates of the 5th coloured light and data to be displayed
The chromaticity coordinates of the second primary colours optical signal parsed is identical.
12. according to optical projection system described in claim 11, which is characterized in that first coloured light is feux rouges, second coloured light
For orange light, the third coloured light is green light, and the 4th coloured light is blue light, and the 5th coloured light is dark green light；First primary lights
Signal is feux rouges, and the second primary colours optical signal is green light, and the third primary colours optical signal is blue light.
13. according to the optical projection system of claim 1,11 or 12, which is characterized in that the light source includes excitation light source, first
Monochromatic illuminating source, the second monochromatic illuminating source and the rotatable color wheel being placed on the light source optical axis, the colour wheel include according to
The first transparent diffuser, orange fluorescent powder section, green emitting phosphor section, the second transparent diffuser and the scattering section of secondary setting.
14. optical projection system according to claim 13, which is characterized in that the excitation light source is blue laser, described
First monochromatic illuminating source is red laser, and second monochrome light emitting elements are dark green light laser；The blue laser
Device is opened when the orange fluorescent powder section of the colour wheel, green emitting phosphor section or scattering section are on light source optical axis；The feux rouges
Laser is opened when the first diffusion transparent section is on light source optical axis, and the viridescent light laser is in the described second transparent diffusion
Section is opened on light source optical axis.
15. according to optical projection system described in claim 14, which is characterized in that the main wave of blue laser that the blue laser is sent out
The dominant wavelength of a length of 445nm, the red laser that the red laser is sent out are 638nm, the blueness that the viridescent light laser is sent out
The dominant wavelength of green laser is 530nm.
16. a kind of colour gamut control method of optical projection system, which is characterized in that the optical projection system includes light source and control system,
The light source provides at least four coloured light of sequential outgoing, including the first coloured light, the second coloured light, third coloured light and the 4th coloured light；
The control system includes lsb decoder, signal conversion part and spatial light modulator, and the lsb decoder is used for will be to be shown
Data resolve to the first primary colours optical signal, the second primary colours optical signal and third primary colours optical signal；The signal conversion part is used for will
The first primary colours optical signal is converted to first control signal and second control signal, and the second primary colours optical signal is converted to third
Signal is controlled, third primary colours optical signal is converted into the 4th control signal；
Spatial light modulator is modulated incident the first coloured light on it under the action of the first control signal, the
Incident the second coloured light on it is modulated under two control signal functions, to being incident under the action of third controls signal
Third coloured light thereon is modulated, and is modulated to incident the 4th coloured light on it under the action of the 4th control signal；
Brightness after first coloured light and second Colored light mixing is believed with the first primary lights that data to be displayed parses
Number brightness is identical, the first base that the chromaticity coordinates after first coloured light and second Colored light mixing is separated out with data to be displayed
The chromaticity coordinates of coloured light signal is identical；
The control system further includes light source drive control part, and the light source drive control part is by controlling the first coloured light and second
The brightness ratio of driving current intensity or current duty cycle allotment the first coloured light and the second coloured light of coloured light.
17. the colour gamut control method of optical projection system according to claim 16, which is characterized in that converted by the signal
Portion configures the gray value of the first primary colours optical signal to a, configures the first control signal gray value to b and incite somebody to action
The second control signal gray value is configured to c, the mixed light and first base of first coloured light and second coloured light
Coloured light signal meets following relationship in brightness and chromaticity coordinates：
Wherein LR' be the first primary colours optical signal maximum brightness, LRFor the maximum brightness of the first coloured light, LOMost for the second coloured light
The chromaticity coordinates of big brightness, the first primary colours optical signal is (x, y), and the first coloured light chromaticity coordinates is (xR,yR), the second coloured light chromaticity coordinates is
(xO,yO)。
18. the colour gamut control method of optical projection system according to claim 17, which is characterized in that converted by the signal
Portion configures the gray value of the first primary colours optical signal, the first control signal gray value and second control signal gray value
For same value a, the mixed light of first coloured light and second coloured light is sat with the first primary colours optical signal in brightness and color
It puts on and meets following relationship：
LR'=LR+LO
Wherein LR' be the first primary colours optical signal maximum brightness, LRFor the maximum brightness of the first coloured light, LOMost for the second coloured light
The chromaticity coordinates of big brightness, the first primary colours optical signal is (x, y), and the first coloured light chromaticity coordinates is (xR,yR), the second coloured light chromaticity coordinates is
(xO,yO)。
19. according to the colour gamut control method of optical projection system described in claim 16, which is characterized in that the light source drive control part
The also driving current intensity or duty ratio of control third coloured light either the 4th coloured light, makes data to be displayed reach scheduled white flat
Weighing apparatus；Or, the signal conversion part also configures the 4th control of gray value adjustment third coloured light brightness and configuration of third control signal
The gray value of signal adjusts the brightness of the 4th coloured light, and data to be displayed is made to reach scheduled white balance.
20. according to the colour gamut control method of optical projection system described in claim 16, which is characterized in that the signal conversion part is institute
State the control system DDP of spatial light modulator or for the chromacoder independently of the spatial light modulator.
21. according to the colour gamut control method of optical projection system described in claim 16, which is characterized in that first coloured light is red
Light, second coloured light are orange light, and the third coloured light is green light, and the 4th coloured light is blue light；The first primary lights letter
Number be feux rouges, the second primary colours optical signal be green light, the third primary colours optical signal be blue light.
22. according to the colour gamut control method of optical projection system described in claim 16, which is characterized in that first coloured light is green
Light, second coloured light are dark green light, and the third coloured light is feux rouges, and the 4th coloured light is blue light；First primary lights
Signal is green light, and the second primary colours optical signal is feux rouges, and the third primary colours optical signal is blue light.
23. according to the colour gamut control method of any one of claim 16 to 22 optical projection system, which is characterized in that the light source
Including excitation light source, the first monochromatic illuminating source and the rotatable color wheel being placed on the light source optical axis, the colour wheel include according to
Transparent diffuser, orange fluorescent powder section, green emitting phosphor section and the scattering section of secondary setting.
24. according to the colour gamut control method of optical projection system described in claim 23, which is characterized in that the excitation light source is blue light
Laser, the described first monochromatic illuminating source is red laser, orange fluorescent powder of the blue laser in the colour wheel
Section, green emitting phosphor section or scattering section are opened when being on light source optical axis；The red laser is at the diffusion transparent section
It is opened when on light source optical axis.
25. according to the colour gamut control method of optical projection system described in claim 24, which is characterized in that the blue laser is sent out
Blue laser dominant wavelength be 445nm, the dominant wavelength of the red laser that red laser is sent out is 638nm.
26. according to the colour gamut control method of optical projection system described in claim 16, which is characterized in that the light source is also emitted the 5th
Coloured light, immediately third coloured light sequential is emitted the 5th coloured light, and the signal conversion part also turns the second primary colours optical signal
It is changed to third control signal and the 5th control signal；Spatial light modulator is under the action of the 5th control signal to being incident on
The 5th coloured light thereon is modulated；It is characterized in that, the third coloured light and the mixed brightness of the 5th coloured light with wait for
The second primary lights luminance signals that display data parses are identical, the third coloured light and the mixed color of the 5th coloured light
Coordinate is identical as the chromaticity coordinates for the second primary colours optical signal that data to be displayed parses.
27. according to the colour gamut control method of optical projection system described in claim 26, which is characterized in that first coloured light is red
Light, second coloured light are orange light, and the third coloured light is green light, and the 4th coloured light is blue light, and the 5th coloured light is dark green light；
The first primary colours optical signal is feux rouges, and the second primary colours optical signal is green light, and the third primary colours optical signal is blue light.
28. according to the colour gamut control method of the optical projection system of claim 16,26 or 27, which is characterized in that the light source packet
Excitation light source, the first monochromatic illuminating source, the second monochromatic illuminating source and the rotatable color wheel being placed on the light source optical axis are included,
The colour wheel includes the first transparent diffuser set gradually, orange fluorescent powder section, green emitting phosphor section, the second transparent diffuser
With scattering section.
29. the colour gamut control method of optical projection system according to claim 28, which is characterized in that the excitation light source is indigo plant
Light laser, the described first monochromatic illuminating source are red laser, and second monochrome light emitting elements are dark green light laser；
The blue laser is opened when the orange fluorescent powder section of the colour wheel, green emitting phosphor section or scattering section are on light source optical axis
It opens；The red laser is opened when the first diffusion transparent section is on light source optical axis, and the viridescent light laser is described
Second transparent diffuser or the orange fluorescent powder, which are on light source optical axis, to be opened.
30. according to the colour gamut control method of optical projection system described in claim 29, which is characterized in that the blue laser is sent out
Blue laser dominant wavelength be 445nm, the dominant wavelength of the red laser that the red laser is sent out is 638nm, the viridescent light
The dominant wavelength for the dark green laser that laser is sent out 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 |
Applications Claiming Priority (1)
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106154711A CN106154711A (en) | 2016-11-23 |
| CN106154711B true CN106154711B (en) | 2018-07-24 |
Family
ID=57072285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510165698.7A Active CN106154711B (en) | 2015-04-09 | 2015-04-09 | A kind of optical projection system and its colour gamut control method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106154711B (en) |
| WO (1) | WO2016161934A1 (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN109324465B (en) * | 2017-07-31 | 2021-12-31 | 深圳光峰科技股份有限公司 | Display apparatus and display method |
| 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 |
| CN109426052B (en) * | 2017-08-24 | 2021-04-06 | 深圳光峰科技股份有限公司 | Projection system |
| JP2019049578A (en) * | 2017-09-07 | 2019-03-28 | キヤノン株式会社 | Projection device, control method of the same, and program |
| CN108234975A (en) * | 2017-12-29 | 2018-06-29 | 花花猫显示科技有限公司 | Combination color homogeneity and consistency control method based on video camera |
| CN110007550B (en) * | 2018-01-04 | 2021-11-05 | 深圳光峰科技股份有限公司 | Light source system and projection equipment |
| CN110275376B (en) * | 2018-03-16 | 2021-08-03 | 深圳光峰科技股份有限公司 | Display apparatus and display method |
| CN110277040B (en) * | 2018-03-16 | 2023-08-29 | 深圳光峰科技股份有限公司 | Display apparatus |
| CN113938660A (en) * | 2018-03-16 | 2022-01-14 | 深圳光峰科技股份有限公司 | Display device |
| CN110278422B (en) * | 2018-03-16 | 2022-01-11 | 深圳光峰科技股份有限公司 | Display device |
| CN108565676B (en) * | 2018-06-15 | 2023-09-22 | 江苏镭创高科光电科技有限公司 | Laser light source and display device |
| CN110737162B (en) * | 2018-07-18 | 2021-09-28 | 深圳光峰科技股份有限公司 | Display device and projection system |
| CN111240144B (en) * | 2018-11-29 | 2022-08-05 | 青岛海信激光显示股份有限公司 | Method for realizing digital micro-reflector driving control in projection imaging |
| CN111258160B (en) * | 2018-11-30 | 2022-07-08 | 青岛海信激光显示股份有限公司 | Laser fluorescence projection system, method and device, electronic device and storage medium |
| CN111381420B (en) * | 2018-12-27 | 2022-04-22 | 深圳光峰科技股份有限公司 | Display apparatus and control method thereof |
| CN113885279A (en) * | 2020-07-02 | 2022-01-04 | 深圳光峰科技股份有限公司 | Current control method, switching power supply circuit and projection equipment |
| 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 |
| 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 |
| CN113992900A (en) * | 2021-10-25 | 2022-01-28 | 河南中光学集团有限公司 | White balance correction method, white balance correction device, terminal equipment and computer readable storage medium |
Citations (6)
| 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 |
| 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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI467242B (en) * | 2012-05-29 | 2015-01-01 | Delta Electronics Inc | Projection apparatus for providing multiple viewing angle images |
| 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 (6)
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106154711A (en) | 2016-11-23 |
| WO2016161934A1 (en) | 2016-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106154711B (en) | A kind of optical projection system and its colour gamut control method | |
| CN105911807B (en) | Laser projection method and laser projection | |
| US10184641B2 (en) | Light-emitting device and projection system | |
| EP2271120B1 (en) | Light source device, video projector and video projection method | |
| CN204595412U (en) | Light-emitting device and optical projection system | |
| CN105334687B (en) | Optical projection system | |
| CN106154714B (en) | A kind of method and optical projection system of spatial light modulator modulation data | |
| TWI584049B (en) | Light combining control system | |
| CN106200217B (en) | Splice projection display system Concordance method and device | |
| CN107621746B (en) | Light emitting device and relevant projecting system | |
| CN110161791A (en) | Lighting system and projection arrangement | |
| US20150219984A1 (en) | Illuminating Optical Device, Projector and Method of Controlling an Illuminating Optical Device | |
| CN106353956B (en) | The control method and projection display system of projection display system | |
| CN106200229A (en) | Splicing display device and tiled display control method | |
| CN103529630A (en) | Light source apparatus and image projection apparatus | |
| JPWO2006129611A1 (en) | Laser image display device and color image display method | |
| WO2016124096A1 (en) | Projection system and control method therefor | |
| CN104049447B (en) | The region of signal light control is used to switch with the system and method for the image for generating HDR | |
| CN106371274B (en) | A kind of hybrid light source device and its light-emitting control method, optical projection system | |
| CN106462041B (en) | Image display device and image generating method | |
| CN104460208A (en) | Light source assembly and imaging device and method | |
| CN110737162B (en) | Display device and projection system | |
| CN105511091A (en) | Light-splitting light-integrating device and projection display system | |
| CN116560172B (en) | Optical engine | |
| WO2021008333A1 (en) | Color correction method for lighting system and lighting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 20-22, 20-22 headquarters building, 63 high tech Zone, Xuefu Road, Nanshan District, Guangdong Province, Guangdong. Patentee after: APPOTRONICS Corp.,Ltd. Address before: 518000 20-22, 20-22 headquarters building, 63 high tech Zone, Xuefu Road, Nanshan District, Guangdong Province, Guangdong. Patentee before: SHENZHEN GUANGFENG TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 518000 20-22, 20-22 headquarters building, 63 high tech Zone, Xuefu Road, Nanshan District, Guangdong Province, Guangdong. Patentee after: SHENZHEN GUANGFENG TECHNOLOGY Co.,Ltd. Address before: 518055 Guangdong province Shenzhen Nanshan District Xili town Cha Guang road Shenzhen integrated circuit design application Industrial Park 401 Patentee before: APPOTRONICS Corp.,Ltd. |
|
| CP03 | Change of name, title or address |