CN108810497A - Optical projection system, projecting method and image processing method - Google Patents

Optical projection system, projecting method and image processing method Download PDF

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Publication number
CN108810497A
CN108810497A CN201710300395.0A CN201710300395A CN108810497A CN 108810497 A CN108810497 A CN 108810497A CN 201710300395 A CN201710300395 A CN 201710300395A CN 108810497 A CN108810497 A CN 108810497A
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China
Prior art keywords
light
image data
primary colours
primary
image
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CN201710300395.0A
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Chinese (zh)
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CN108810497B (en
Inventor
郭祖强
胡飞
李屹
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Shenzhen Appotronics Corp Ltd
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Appotronics Corp Ltd
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Priority to CN201710300395.0A priority Critical patent/CN108810497B/en
Priority to PCT/CN2017/109343 priority patent/WO2018201682A1/en
Publication of CN108810497A publication Critical patent/CN108810497A/en
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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]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • 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]
    • 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]
    • H04N9/3141—Constructional details thereof
    • 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]
    • H04N9/3179—Video signal processing therefor

Abstract

The present invention relates to a kind of optical projection system, projecting method and image processing methods.The optical projection system includes light supply apparatus, image data processing module and control and optical modulator module.The light supply apparatus is for sending out the first light and the second light, described image data processing module is used to judge the gamut range of image to be displayed, if the color gamut value of the one part of pixel of the image to be displayed is located within first gamut range, the color gamut value of another part pixel is located at except first gamut range, then the image data of image to be displayed is divided into the first image data and the second image data.The control and optical modulator module generate corresponding projected light for modulating first light according to described first image data and modulate second light according to second image data to generate corresponding projected light or modulate first light and second light according to second image data to generate corresponding projected light.

Description

Optical projection system, projecting method and image processing method
Technical field
The present invention relates to a kind of projection art more particularly to optical projection system, projecting method and image real time transfer sides Method.
Background technology
Existing optical projection system is widely used in the fields such as movie theatre, education, TV, and optical projection system uses light tune according to it The type of molding block can be divided into DMD (Digital Micromirror Device), LCOS (Liquid Crystal on Silicon), LCD (Liquid Crystal Display) etc., can be divided into one chip, biplate according to the quantity of optical modulator module Formula and three-chip type system.In terms of the light source of optical projection system, traditional light source includes the bulb sources such as UHP, xenon lamp, at present gradually What is grown up has the pure laser light source of LED light source, RGB and LASER Excited Fluorescence powder light source, the latter to may be considered with semiconductor Light source based on luminescent device.It is limited to etendue, the optical projection system of LED light source, luminance shortage is outstanding in many fields It is limited to the higher movie theatre applications of brightness requirement.Comparison differentiation common at present is RGB laser light sources and laser Phosphor source, RGB laser light sources have the advantage that excitation purity is high, colour gamut is wide, are generally capable of up to REC2020 gamut standards, But its speckle issue is insoluble knotty problem, and speckle issue, visual performance is not present in the light source of LASER Excited Fluorescence powder It is good, DCI standard is generally capable of up in terms of colour gamut.For most situations of practical viewing image, DCI colour gamuts are sufficient It is enough.It can imagine in this way, the image of shooting comes from nature, life periphery etc., and why we are it can be seen that object has Certain color, comes from the spectrum of its reflection, and the spectrum generally reflected all can be the more continuous, light with one fixed width Spectrum, therefore the color of object can all be fallen within DCI colour gamuts, unless there is a situation where such：Capture apparatus directly has taken pure The light beam of laser, for example, the green laser beam of 532nm and 638nm red laser beam, at this time DCI colour gamuts can not restore this two The intrinsic color of kind laser beam, and this is also considered as the place that laser fluorescence light source is not so good as the pure laser light sources of RGB, therefore such as What becomes one so that the characteristics of laser fluorescence light source also can be with exceeding the colour gamut of DCI, while being able to maintain that its specular removal again A challenging project.
Existing pure laser projection can realize the big gamut range of REC2020, and the projector of laser fluorescence powder technology Gamut range be DCI709, although most colors are within DCI gamut ranges in nature, in specific condition Under, for example when showing the color of pure laser, can be located at except DCI colour gamuts, the projector of existing laser fluorescence powder technology is aobvious When showing the color, it can make to show beyond the color except DCI colour gamuts not true to nature.
With the development of Color Laser Projection Technology, the high projected picture of fidelity also chases the one of projection products as consumer A reference standard.The gamut range of existing laser fluorescence powder technology meets color conventional in general nature circle and shows, but right Can be except DCI colour gamuts, if shown using DCI colour gamuts in special color of image, the color except DCI colour gamuts It can only be shown with the color on DCI gamut boundaries, however different colour-differences can not just embody.It is final not exist Color display distortion within DCI gamut ranges.
Invention content
The technical issues of specific colour gamut leads to color display distortion, this hair cannot be shown to solve prior art optical projection system Bright to provide a kind of optical projection system and projecting method that effectively widen colour gamut and improve cross-color, this also offer that shines is a kind of It can be applied to the image processing method of the optical projection system.
A kind of optical projection system comprising：
Light supply apparatus, for sending out the first light and the second light；
Image data processing module, the colour gamut model for judging image to be displayed according to the image data of image to be displayed It encloses, if the color gamut value of the one part of pixel of the image to be displayed is located within first gamut range, another part pixel Color gamut value be located at except first gamut range, described image data processing module is by the picture number of the image to be displayed According to the first image data and the second image data is divided into, wherein described first image data include that color gamut value is located at described first The image data of pixel within gamut range, second image data include color gamut value be located at first gamut range it The image data of outer pixel；
Control and optical modulator module, for modulating first light according to described first image data to generate corresponding throwing Shadow light, the control and optical modulator module are additionally operable to modulate second light according to second image data or according to described Second image data modulates first light and second light to generate corresponding projected light；And
Projection lens, for projecting the projected light modulated according to described first image data and according to described second The projected light that image data is modulated is to same area, to generate the image to be displayed.
In one embodiment, second light may include laser.
In one embodiment, the image to be displayed data include a sub-frame images data, at described image data Sub-frame images data described in module analysis are managed, if the color gamut value of the one part of pixel of the sub-frame images data is located at described first Within gamut range, the color gamut value of another part pixel is located at except first gamut range, then described image data processing The color gamut value is located at the image data of the partial pixel within first gamut range as described first image by module Data, and another part pixel except the color gamut value is located at first gamut range image data as described in Second image data.
In one embodiment, the image to be displayed data include at least two sub-frame images data, described image number According at least two sub-frame images data described in processing module analysis, if at least two sub-frame images data include the colour gamut of each pixel Sub-frame images data of the value within first gamut range are with the color gamut value of each pixel at least partially in described first Sub-frame images data except gamut range, then described image data processing module by the color gamut value of each pixel described Sub-frame images data within first gamut range are as described first image data, and by the color gamut value of each pixel At least partially in the sub-frame images data except first gamut range as second image data.
In one embodiment, the image to be displayed data include at least two sub-frame images data, described image number According at least two sub-frame images data described in processing module analysis, if at least two sub-frame images data include the colour gamut of each pixel Sub-frame images data of the value within first gamut range are with the color gamut value of each pixel at least partially in described first Sub-frame images data except gamut range, then described image data processing module at least two sub-frame images data by described in are with son Frame is that unit is first divided into first part's data and second part data, and first part's data include the color of each pixel Sub-frame images data of the thresholding within first gamut range, the second part data include the color gamut value of each pixel At least partially in the sub-frame images data except first gamut range, described image data processing module is further by institute The every sub-frame images data stated in second part data are divided into Part III data and Part IV data, wherein the third Partial data is part sub-frame images data of the color gamut value within first gamut range of each pixel, described 4th Divided data is another part sub-frame images data of the color gamut value except first gamut range of each pixel, described first Image data includes first part's data and the Part III data, and second image data includes described 4th Divided data.
A kind of projecting method comprising following steps：
The gamut range of image to be displayed is judged according to the image data of image to be displayed,
If the color gamut value of the one part of pixel of the image to be displayed is located within first gamut range, another part The color gamut value of pixel is located at except first gamut range, and the image data of the image to be displayed is divided into the first image Data and the second image data, wherein described first image data include the picture that color gamut value is located within first gamut range The image data of element, second image data includes the picture number for the pixel that color gamut value is located at except first gamut range According to；
The first light is modulated to generate corresponding projected light, and according to second image according to described first image data Data modulate second light with generate corresponding projected light or according to second image data modulate first light and Second light is to generate corresponding projected light；And
The projected light and modulated according to second image data that projection foundation described first image data are modulated Obtained projected light is to same area, to generate the image to be displayed.
In one embodiment, the image to be displayed data include a sub-frame images data, if the sub-frame images The color gamut value of the one part of pixel of data is located within first gamut range, and the color gamut value of another part pixel is positioned at described Except first gamut range, then using the color gamut value be located at first gamut range partial pixel image data as institute The first image data is stated, the image data that the color gamut value is located to another part pixel except first gamut range is made For second image data.
In one embodiment, the image to be displayed data include at least two sub-frame images data, described at least two Sub-frame images data include sub-frame images data of the color gamut value of each pixel within first gamut range and each pixel Color gamut value at least partially in the sub-frame images data except first gamut range, then by the color gamut value of each pixel Sub-frame images data within first gamut range are as described first image data, by the colour gamut of each pixel Value at least partially in the sub-frame images data except first gamut range as second image data.
In one embodiment, the image to be displayed data include at least two sub-frame images data, analysis described in extremely Few two sub-frame images data, if at least two sub-frame images data include the color gamut value of each pixel in the first colour gamut model Sub-frame images data within enclosing are with the color gamut value of each pixel at least partially in the subframe pattern except first gamut range As data, then at least two sub-frame images data are first divided into first part's data and second part number as unit of subframe According to first part's data include sub-frame images number of the color gamut value of each pixel within first gamut range According to the second part data include the color gamut value of each pixel at least partially in the subframe pattern except first gamut range As data, every sub-frame images data in the second part data are further divided into Part III data and Part IV Data, wherein the Part III data are part subframe pattern of the color gamut value of each pixel within first gamut range As data, the Part IV data are another part subframe of the color gamut value of each pixel except first gamut range Image data, described first image data include first part's data and the Part III data, second image Data include the Part IV data.
In one embodiment, described to modulate the first light according to described first image data to generate corresponding projection Light, and the second light or the first light and the second light are modulated to generate the step of corresponding projected light according to second image data Suddenly include：
The first modulation control signal is generated according to the first image data, the second modulation is generated according to second image data Control signal and generate light source control signal, the light source control signal be used to control first light and second light when Sequence, the first modulation control signal are modulated in the first period according to described first image data for controlling spatial light modulator First light, the second modulation control signal is for controlling the spatial light modulator in the second period according to described second Image data modulates second light or first light and second light.
In one embodiment, described to modulate the first light according to described first image data to generate corresponding projection Light, and the second light or the first light and the second light are modulated to generate the step of corresponding projected light according to second image data Suddenly include：
The first modulation control signal is generated according to described first image data, generates second according to second image data Modulation control signal, the first modulation control signal is for controlling the first spatial light modulator according to described first image data First light is modulated, the second modulation control signal is for controlling second space optical modulator described in the second period foundation Second image data modulates second light or first light and second light.
A kind of image processing method is used for optical projection system, the method includes：
The gamut range of image to be displayed is judged according to the image data of image to be displayed,
If the color gamut value of the one part of pixel of the image to be displayed is located within first gamut range, another part The color gamut value of pixel is located at except first gamut range, and the image data of the image to be displayed is divided into the first image Data and the second image data, wherein described first image data include the picture that color gamut value is located within first gamut range The image data of element, second image data includes the picture number for the pixel that color gamut value is located at except first gamut range According to.
In one embodiment, the image to be displayed data include a sub-frame images data, if the sub-frame images The color gamut value of the one part of pixel of data is located within first gamut range, and the color gamut value of another part pixel is positioned at described Except first gamut range, then using the color gamut value be located at first gamut range partial pixel image data as institute The first image data is stated, the image data that the color gamut value is located to another part pixel except first gamut range is made For second image data.
In one embodiment, the image to be displayed data include at least two sub-frame images data, described at least two Sub-frame images data include sub-frame images data of the color gamut value of each pixel within first gamut range and each pixel Color gamut value at least partially in the sub-frame images data except first gamut range, then by the color gamut value of each pixel Sub-frame images data within first gamut range are as described first image data, by the colour gamut of each pixel Value at least partially in the sub-frame images data except first gamut range as second image data.
In one embodiment, the image to be displayed data include at least two sub-frame images data, analysis described in extremely Few two sub-frame images data, if at least two sub-frame images data include the color gamut value of each pixel in the first colour gamut model Sub-frame images data within enclosing are with the color gamut value of each pixel at least partially in the subframe pattern except first gamut range As data, then at least two sub-frame images data are first divided into first part's data and second part number as unit of subframe According to first part's data include sub-frame images number of the color gamut value of each pixel within first gamut range According to the second part data include the color gamut value of each pixel at least partially in the subframe pattern except first gamut range As data, every sub-frame images data in the second part data are further divided into Part III data and Part IV Data, wherein the Part III data are part subframe pattern of the color gamut value of each pixel within first gamut range As data, the Part IV data are another part subframe of the color gamut value of each pixel except first gamut range Image data, described first image data include first part's data and the Part III data, second image Data include the Part IV data.
Compared with prior art, the optical projection system, projecting method and the image real time transfer for being applied to optical projection system In method, the gamut range by judging the image data of image to be displayed is to be shown beyond the first gamut range come color domain The image data of image is split according to gamut range, and institute is modulated according further to first and second image data after segmentation It states the first light for modulating the image within the first gamut range and generates projected light, and modulation is described for modulating described the The second light or the first light of image other than one gamut range and the second light generate projected light so that the difference gamut range Image data can modulate light corresponding with described image data colour gamut and generate projected light, image data can be effectively improved The phenomenon that color of image caused by being mismatched with the colour gamut of corresponding modulation light is distorted, thus the optical projection system, projection side The picture color of method is true to nature, display effect is preferable.
Description of the drawings
Fig. 1 is the frame structure schematic diagram of optical projection system of the present invention.
Fig. 2 is the gamut range schematic diagram of optical projection system shown in Fig. 1.
Fig. 3 is the flow diagram of the projecting method of optical projection system shown in Fig. 1.
Fig. 4 is the structural schematic diagram of the first embodiment of optical projection system of the present invention.
Fig. 5 is the colour wheel structural schematic diagram of optical projection system shown in Fig. 4.
Fig. 6 is the structural schematic diagram of the second embodiment of optical projection system of the present invention.
Fig. 7 is the colour wheel structural schematic diagram of optical projection system shown in Fig. 6.
Fig. 8 is the image modulation sequence diagram of optical projection system shown in Fig. 6.
Fig. 9 is the image modulation sequence diagram of the 3rd embodiment of optical projection system of the present invention.
Figure 10 is the structural schematic diagram of the fourth embodiment of optical projection system of the present invention.
Figure 11 is the image modulation sequence diagram of optical projection system shown in Figure 10.
Figure 12 is the structural schematic diagram of the 5th embodiment of optical projection system of the present invention.
Figure 13 is the image modulation sequence diagram of optical projection system shown in Figure 12.
Main element symbol description
Optical projection system 100,200,300,400
Light supply apparatus 110
First light source 111,211,311,411
Second light source 112,212,412
First light-emitting component 113,213,313,413
Second light-emitting component 115,215,315,415
Third light-emitting component 116,216,316,416
Colour wheel 114,214,314,414
Beam splitter 251,351,451,452
Closing light element 117,118,252,254,354,454
Light processing element 119a, 119b
Optical modulator module 132
Image data processing module 120
Control device 131
Control and optical modulator module 130
Projection lens 140,240,340,440
First spatial light modulator 232a, 332a, 432a
Second space optical modulator 232b, 332b, 432b
Third spatial light modulator 432c
Induction element 119c, 253,352,353,453
Region B, Gl, Gp, Rl, Rp, Y
Image data DATA
First period T1
Second period T2
Third period T3
4th period T4
Step S1, S2, S3
Following specific implementation mode will be further illustrated the present invention in conjunction with above-mentioned attached drawing.
Specific implementation mode
Referring to Fig. 1, Fig. 1 is the frame structure schematic diagram of optical projection system of the present invention.The optical projection system includes light source dress Set 110, image data processing module 120, control and optical modulator module 130 and projection lens 140.
The light supply apparatus 110 is for sending out the first light and the second light, wherein first light is used for modulating the first colour gamut Within the scope of image, second light be used for and the image other than the first gamut range described in the described first smooth common modulation. In present embodiment, first light includes fluorescence, and second light includes laser.It is appreciated that described first can be sent out The light supply apparatus 110 of light and second light, will be right in the subsequent first to the 5th embodiment of the application there are many embodiment Some specific implementations of light supply apparatus 110 illustrate, it is to be understood that, the light supply apparatus 110 of the application not after Embodiment in the first to the 5th continuous embodiment is limited.
Specifically, referring to Fig. 2, Fig. 2 is the gamut range schematic diagram of optical projection system shown in Fig. 1, the first colour gamut model It is the gamut range that first light can be shown to enclose F1, can be DCI gamut ranges, such as gamut range DCI709.Definition Second gamut range F2, the second gamut range F2 is the REC gamut range F other than the first gamut range F1, and is The gamut range that first light can be shown with second light, the second gamut range F2 are located at the first colour gamut model It encloses the peripheries F1 and removes the part of the first gamut range F1 for REC gamut ranges F.
Described image data processing module 120 is used to judge according to the image data of image to be displayed the color of image to be displayed Domain range, if the color gamut value of the one part of pixel of the image to be displayed is located within first gamut range, another part The color gamut value of pixel is located at except first gamut range, and described image data processing module 120 is by the image to be displayed Image data be divided into the first image data and the second image data, wherein described first image data include that color gamut value is located at The image data of the pixel of first gamut range, second image data include that color gamut value is located at the second colour gamut model The image data for the pixel enclosed.It is appreciated that the color gamut value can regard the corresponding image data of the pixel as in gamut map In position, can be characterized with the chromaticity coordinates value in gamut map.
In one embodiment, the image to be displayed data include a sub-frame images data, at described image data Reason module 120 analyzes the sub-frame images data (as per sub-frame images data), if a part of picture of the sub-frame images data The color gamut value of element is located within the first gamut range F1, and the color gamut value of another part pixel is located at first gamut range Except F1 (in such as described second gamut range F2), then the color gamut value is located at described by described image data processing module 120 The image data of the partial pixel of first gamut range is as described first image data, and the color gamut value is located at described The image data of another part pixel except first gamut range F1 is as second image data.It is appreciated that a frame Image data general proxy piece image or or picture image data, in projection art, a frame image data is general Sub-frame images data including three primary colours, i.e. a red sub-frame image data, a green sub-frame image data and a blue subframes Image data, the sub-frame images data in the application represent the red sub-frame image data, the green sub-frame image data And the blue subframes image data is one such.
In another embodiment, the image to be displayed data include at least two sub-frame images data, it is described at least Two sub-frame images data can be the continuous image data of two subframes (the red sub-frame image data such as continuously displayed and one green Dice frame image data), described image data processing module 120 analyzes at least two sub-frame images data, if it is described at least Two sub-frame images data include sub-frame images data of the color gamut value of each pixel in the first gamut range F1 and each picture Element color gamut value at least partially in the subframe except the first gamut range F1 (within such as described second gamut range F2) Image data, then described image data processing module 120 by the color gamut value of each pixel in the first gamut range F1 Interior sub-frame images data are as described first image data, and by the color gamut value of each pixel at least partially in described Sub-frame images data except first gamut range F1 (within such as described second gamut range F2) are as second picture number According to.It is appreciated that it is described at least partially in except the first gamut range F1 (as within the second gamut range F2) Sub-frame images data indicate：The sub-frame images data include that the color gamut value of partial pixel is located at the figure of the first gamut range F1 As the color gamut value of data and another part pixel is located at except the first gamut range F1 (such as described second gamut range F2 it It is interior) image data；Or the color gamut value of all pixels in the sub-frame images data is located at the first gamut range F1 Except (within such as described second gamut range F2).
Further, in the above-described embodiment, when the sub-frame images data include the color gamut value position of partial pixel It is located at except the first gamut range F1 (such as in the image data of the first gamut range F1 and the color gamut value of another part pixel Within the second gamut range F2) image data, then can the sub-frame images data further divide.Specifically, When the image to be displayed data include at least two sub-frame images data, described image data processing module 120 is analyzed described At least two sub-frame images data, if at least two sub-frame images data include the color gamut value of each pixel in first colour gamut Sub-frame images data within range F1 and the color gamut value of each pixel at least partially within the first gamut range F1 and At least partially in the sub-frame images data except the first gamut range F1 (within such as described second gamut range F2), then institute It states image data processing module 120 and at least two sub-frame images data is first divided into first part's data as unit of subframe With second part data, first part's data include the color gamut value of each pixel in the first gamut range F1 Sub-frame images data, the second part data include the color gamut value of each pixel at least partially in first gamut range Sub-frame images data except F1 (within such as described second gamut range F2), described image data processing module 120 are further Every sub-frame images data in the second part data are divided into Part III data and Part IV data, wherein described Part III data are part sub-frame images data of the color gamut value of each pixel within the first gamut range F1, described Part IV data be each pixel color gamut value except the first gamut range F1 (such as described second gamut range F2 it It is interior) another part sub-frame images data, described first image data include first part's data and the Part III Data, second image data include the Part IV data.
It will be appreciated, of course, that if described image data processing module 120 judges the image data of the image to be displayed For gamut range within the first gamut range F1, described image data processing module 120 need not be to described to be shown The image data of image is split, and the image data of the image to be displayed is directly provided to the control and light modulation mould Block 130 so that the control modulates first light according to the image data of the image to be displayed with optical modulator module 130 and is The modulation for meeting the image to be displayed of colour gamut demand can be achieved, herein just repeat no more the image data for image to be displayed The method and step of data processing and projection of the gamut range within the first gamut range F1.
The control and optical modulator module 130 are used to modulate first light according to described first image data to generate pair The projected light answered and the control and optical modulator module 130 are additionally operable to according to second image data modulation described second Light is to generate corresponding projected light or modulate first light and second light according to second image data to generate Corresponding projected light.It specifically, in one embodiment, can be according to the position of the corresponding color gamut value of second image data It sets and carrys out described in selection gist the second image data and modulate second light or first light and second light to obtain pair The projected light answered, for example, when the corresponding color gamut value of second image data is located at the side of the second gamut range F2 In boundary line (on the side of the triangle of the delta-shaped region of the periphery of i.e. described second gamut range), the control and light modulation mould Block 130 can modulate second light to generate corresponding projected light according to second image data；When second image The corresponding color gamut value of data is located at the region for not including periphery sides boundary line within the boundary line of the second gamut range F2, institute Second light and first light can be modulated to generate according to second image data by stating control and optical modulator module 130 Corresponding projected light.Specifically, in another embodiment, it can not also consider the corresponding colour gamut of second image data Second light is modulated to obtain corresponding projected light in the position of value according to second image data.
The projection lens 140 is used to receive the projected light of the control and the generation of optical modulator module 130 to carry out image Projection Display.Specifically, the projection lens 140 is used to project the projected light modulated according to described first image data And the projected light modulated according to second image data is to same area, to generate the image to be displayed.
Specifically, the control and optical modulator module 130 include control device 131 and optical modulator module 132, the control Device 131 is used to generate the first modulation control signal according to the first image data, generates second according to second image data Modulation control signal and generation light source control signal, the light source control signal send out institute for controlling the light supply apparatus 110 State the sequential of the first light and second light.
In one embodiment, the optical modulator module 132 may include a spatial light modulator, first modulation Control signal modulates first light in the first period for controlling the spatial light modulator according to described first image data, The second modulation control signal is for controlling the spatial light modulator in the second period according to the second image data tune Make second light or first light and second light.That is, the spatial light modulator timesharing is adjusted according to described first System controls the first light described in signal modulation and according to the second light or described first described in the second modulation control signal modulation Light and second light.The spatial light modulator can be that DMD spatial light modulators, LCOS spatial light modulators or LCD are empty Between optical modulator, but be not limited with above-mentioned.
In another embodiment, the optical modulator module 132 includes the first spatial light modulator and second space light Modulator, the first modulation control signal is for controlling first spatial light modulator according to described first image data tune First light is made, the second modulation control signal is for controlling the second space optical modulator according to second image Data modulate second light or first light and second light.That is, described first image data and its corresponding institute The first light is stated with second image data and its corresponding second light or first light and second light to distinguish Image modulation is carried out using different spatial light modulators.First and second described spatial light modulator can be DMD spatial lights Modulator, LCOS spatial light modulators or LCD spatial light modulator, but be not limited with above-mentioned.
The light source control signal can by control the unlatching of the first light source 111 and the second light source 112 with It closes to control the sending out with the optical modulator module 132 according to modulation control signal modulation of first light and second light The sequential of image is corresponding.It is appreciated that about the control to the first light source 111 and 112 opening time of the second light source A variety of achievable schemes are formed with, such as first light source 111 is opened simultaneously with the second light source 112 or first light Source 111 and 112 timesharing of the second light source open or in conjunction with opening time and luminous intensity control the first light source 111 with The second light source 112 is to open simultaneously or timesharing is opened or opened with which kind of and intensity time etc., be may be implemented pair The reasonable control of the light quantity ratio will describe in detail in the follow-up first to the 5th embodiment of the present invention, herein just no longer Repeat its specific unlatching control program.
Further, referring to Fig. 3, the present invention also provides a kind of projecting method applied to above-mentioned optical projection system 100, institute It states projecting method and includes the following steps S1, S2 and S3.
Step S1 judges the gamut range of image to be displayed according to the image data of image to be displayed.
Specifically, it can be realized by the image data processing module 120 of the optical projection system 100, described image data Processing module 120 can receive and analyze the image data of the image to be displayed, to know the gamut range of image to be displayed. It specifically, can be by every in the image data (a such as frame image data or a sub-frame images data) of the image to be displayed The color information (color gamut information, grayscale value) of a pixel knows the color gamut value of each pixel, to know the figure to be shown The gamut range of picture.
Step S2, if the color gamut value of the one part of pixel of the image to be displayed is located within first gamut range, The color gamut value of another part pixel is located at except first gamut range, and the image data of the image to be displayed is divided into First image data and the second image data, wherein described first image data include that color gamut value is located at first gamut range Pixel image data, second image data includes the picture number that color gamut value is located at the pixel of second gamut range According to.
Specifically, described image data processing module 120 can be incited somebody to action according further to the judging result of the gamut range The image data of the image to be displayed is divided into the first image data and the second image data.Wherein described first image data It is located at the image data of the pixel within the first gamut range F1 including color gamut value, second image data includes colour gamut Value is located at the image data of the pixel (within such as described second gamut range F2) except the first gamut range F1.
In one embodiment, the image to be displayed data include a sub-frame images data, at described image data Reason module 120 analyzes the sub-frame images data (as per sub-frame images data), if a part of picture of the sub-frame images data The color gamut value of element is located within the first gamut range F1, and the color gamut value of another part pixel is located at first gamut range Except F1 (in such as described second gamut range F2), then the color gamut value is located at described by described image data processing module 120 The image data of the partial pixel of first gamut range is as described first image data, and the color gamut value is located at described The image data of another part pixel except first gamut range F1 is as second image data.It is appreciated that a frame Image data general proxy piece image or or picture image data, in projection art, a frame image data is general Sub-frame images data including three primary colours, i.e. a red sub-frame image data, a green sub-frame image data and a blue subframes Image data, the sub-frame images data in the application represent the red sub-frame image data, the green sub-frame image data And the blue subframes image data is one such.
In another embodiment, the image to be displayed data include at least two sub-frame images data, it is described at least Two sub-frame images data can be the continuous image data of two subframes (the red sub-frame image data such as continuously displayed and one green Dice frame image data), described image data processing module 120 analyzes at least two sub-frame images data, if it is described at least Two sub-frame images data include sub-frame images data of the color gamut value of each pixel in the first gamut range F1 and each picture Element color gamut value at least partially in the subframe except the first gamut range F1 (within such as described second gamut range F2) Image data, then described image data processing module 120 by the color gamut value of each pixel in the first gamut range F1 Interior sub-frame images data are as described first image data, and by the color gamut value of each pixel at least partially in described Sub-frame images data except first gamut range F1 (within such as described second gamut range F2) are as second picture number According to.It is appreciated that it is described at least partially in except the first gamut range F1 (as within the second gamut range F2) Sub-frame images data indicate：The sub-frame images data include that the color gamut value of partial pixel is located at the figure of the first gamut range F1 As the color gamut value of data and another part pixel is located at except the first gamut range F1 (such as described second gamut range F2 it It is interior) image data；Or the color gamut value of all pixels in the sub-frame images data is located at the first gamut range F1 Except (within such as described second gamut range F2).
Further, in the above-described embodiment, when the sub-frame images data include the color gamut value position of partial pixel It is located at except the first gamut range F1 (such as in the image data of the first gamut range F1 and the color gamut value of another part pixel Within the second gamut range F2) image data, then can the sub-frame images data further divide.Specifically, In another embodiment, the image to be displayed data include at least two sub-frame images data, described image data processing Module 120 analyzes at least two sub-frame images data, if at least two sub-frame images data include the color gamut value of each pixel Sub-frame images data within the first gamut range F1 are with the color gamut value of each pixel at least partially in described first Within gamut range F1 and at least partially in except the first gamut range F1 (as within the second gamut range F2) Sub-frame images data, then at least two sub-frame images data by described in of described image data processing module 120 are first as unit of subframe First part's data and second part data are divided into, first part's data include the color gamut value of each pixel in institute State the sub-frame images data in the first gamut range F1, the second part data include the color gamut value of each pixel at least partly Sub-frame images data except the first gamut range F1 (within such as described second gamut range F2), described image data Every sub-frame images data in the second part data are further divided into Part III data and the 4th by processing module 120 Partial data, wherein the Part III data are part of the color gamut value of each pixel within the first gamut range F1 Sub-frame images data, the Part IV data for each pixel color gamut value except the first gamut range F1 (such as institute State within the second gamut range F2) another part sub-frame images data, described first image data include the first part Data and the Part III data, second image data includes the Part IV data.
It is appreciated that method that the image data of described image data processing module 120 is handled (such as step S1 with S2) it is the image processing method that can be used for optical projection system.
Step S3 modulates the first light to generate corresponding projected light, and according to described according to described first image data Second image data modulates second light to generate corresponding projected light or according to described in second image data modulation First light and second light are to generate corresponding projected light, wherein first light is used for modulating within the first gamut range Image, second light be used for other than the first gamut range described in the described first smooth common modulation image or individually use To modulate the figure person except the first gamut range.Specifically, in one embodiment, when second light and first light When image other than the first gamut range described in common modulation, second light can individually modulate color gamut value and be located at described second On the boundary line of gamut range F2 (on the side of the triangle of the delta-shaped region of the periphery of i.e. described second gamut range) the Two image datas, second light can be provided commonly for modulation color gamut value with first light and be located at the second gamut range F2 Boundary line within not include periphery sides boundary line region the second image data.
Specifically, the step S3 can be implemented by the control and optical modulator module 130.The control and light modulation mould The control device 131 of block 130 generates the first modulation control signal according to the first image data and generates and according to second image Data generate the second modulation control signal.The optical modulator module of the control and optical modulator module 130 is according to first modulation Control the second light or first light described in signal and the second modulation control signal modulation and second light generation pair The projected light answered.
In one embodiment, the optical modulator module 132 may include a spatial light modulator, first modulation Control signal modulates first light in the first period for controlling the spatial light modulator according to described first image data, The second modulation control signal is for controlling the spatial light modulator in the second period according to the second image data tune It makes second light or modulates second light and first light according to the second image data.That is, the space light modulation Device timesharing is according to the first light described in the first modulation control signal modulation and according to the second modulation control signal modulation institute State the second light or first light and second light.
In another embodiment, the optical modulator module 132 includes the first spatial light modulator and second space light Modulator, the first modulation control signal is for controlling first spatial light modulator according to described first image data tune First light is made, the second modulation control signal is for controlling the second space optical modulator according to second image Data modulate second light or first light and second light.That is, described first image data and its corresponding institute The first light is stated with second image data and its corresponding second light or first light and second light to distinguish Image modulation is carried out using different spatial light modulators.
Further, the control device 131 can also be according to described first image data and second image data Corresponding light source control signal is generated, the light source control signal sends out first light for controlling the light supply apparatus 110 With the sequential of second light.
Step S4, projected light that projection is modulated according to described first image data and according to second picture number The projected light obtained according to modulation is to same area, to generate the image to be displayed.The step S4 can utilize the throwing Shadow camera lens 140 is realized.
Compared with prior art, the optical projection system 100 of the application, projecting method and the picture number for being applied to optical projection system According in processing method, by judging that the gamut range of the image data of image to be displayed exceeds the first gamut range come color domain value The image data of image to be displayed be split according to gamut range, according further to first and second picture number after segmentation Projected light is generated according to modulation first light for modulating the image within the first gamut range, and is modulated described for adjusting The second light for making the image other than first gamut range generates projected light so that the image data of the difference gamut range Light corresponding with described image data colour gamut can be modulated and generate projected light, image data and corresponding tune can be effectively improved Caused by the colour gamut of light processed mismatches the phenomenon that color of image distortion, thus the picture face of the optical projection system, projecting method Color is true to nature, display effect is preferable.
Referring to Fig. 4, Fig. 4 is the structural schematic diagram of the first embodiment of optical projection system 100 of the present invention, Fig. 4 is also Fig. 1 institutes Show 100 specific structural schematic diagram of optical projection system.The first light source 111 may include the first light-emitting component 113, colour wheel 114, First closing light element 118 and light processing element 119a.The second light source may include the second light-emitting component 115, third shine Element 116 and the second closing light element 117.
Specifically, first light-emitting component 113 is located at described first and shines for sending out exciting light, the colour wheel 114 In light path where the exciting light that element 113 is sent out, the colour wheel 114 include at least two sectional areas, described at least two Sectional area receives the exciting light and corresponding injection first light, wherein first light includes at least two color of light, Each sectional area correspondence sends out a kind of color of light.It is appreciated that the colour wheel 114 can make along its center of circle Periodic Rotating It obtains in the light path where each sectional area is periodically located at the light that first light-emitting component 113 is sent out.The rotation of the colour wheel 114 Turn to be controlled by the control device 131, specifically, the control device 131 can be according to described image data processing The image data that module 120 exports generates corresponding colour wheel rotation control signal and controls the colour wheel to colour wheel driving device 114
Specifically, fluorescent material can be set on the sectional area of the colour wheel 114, and the fluorescent material receives described sharp It shines and generates fluorescence so that first light includes fluorescence.Specifically, first light-emitting component 113 is excitation light source, quilt Control sends out the exciting light.First light-emitting component 113 can be set to the side of the colour wheel 114.Further, institute It can be blue-light source to state the first light-emitting component 113, blue excitation light is sent out, it will be appreciated that first light-emitting component 113 are not limited to blue-light source, may be red light source, green light source, ultraviolet source etc..It is described in present embodiment First light-emitting component 113 includes blue laser, for sending out blue laser as the exciting light, it will be understood that described the One light-emitting component 113 may include one, two or more blue lasers, and the quantity of its specific laser can be according to reality It needs to select.It is appreciated that in changing embodiment, first light-emitting component 113 can directly send out the first light, such as institute The light-emitting component that the first light-emitting component 113 includes at least two colors is stated, to which the colour wheel 114 can be omitted.Further Ground, in present embodiment, the colour wheel 114 is transmission-type colour wheel, i.e., described 114 side of colour wheel receives the exciting light, another Side is emitted first light, still, in changing embodiment, the colour wheel 114 or reflective colour wheel, i.e., the described color The same side of wheel 114 receives the exciting light and is emitted first light again, and first light is directed to the light processing member Part 119b；Or the colour wheel 114 may be reflective colour wheel or half-transmission half-reflection type colour wheel (such as partial segments Region is regional transmission, and another part sectional area is reflector space), the colour wheel 114 is reflective colour wheel or half transmitting half The light-emitting component can also be adjusted with the light path of the colour wheel, position relationship according to actual needs design when reflective colour wheel, Light path, the position relationship of different type colour wheel and the light-emitting component are just repeated no more herein.
In present embodiment, the first light source 111 that the second light source 112 is set to the colour wheel 114 is opposite Side, that is, first light-emitting component 113 is located at the not homonymy of the colour wheel 114 with second light source 112, and described first shines The light that element 113 is sent out via be converted to after the colour wheel 114 be provided to after first light the light processing element 119b, 119c, the second light that the second light source 112 is sent out are directed to described light processing element 119b, 119c, to described first Light can be directed to the optical modulator module 132 with second light.It is appreciated that in changing embodiment, described the One light-emitting component 113 can be set to the not homonymy of the colour wheel 114 with the first light source 111, further increase a closing light Or the colour wheel 114 is sent out first light and is sent out with the second light source 112 by induction element, the closing light or induction element The second light guided to the optical modulator module 132 via described light processing element 119b, 119c.
In present embodiment, the second light source 112 may include an at least laser, for sending out at least one color Laser as second light.In one embodiment, second light-emitting component 115 is with third light-emitting component 116 Laser sends out the first primary colours supplement light (such as red supplement light) and the second primary colours supplement light (such as green supplement light), institute respectively It is different from the second supplement light color to state the first supplement light.But in changing embodiment, the second light source 112 A kind of color light emitting element (such as a kind of laser of color) can be only included, a kind of supplement light of color is only sent out；Alternatively, institute It can also includes three kinds of lasers to state second light source 112, send out three kinds of color of light supplement lights.It is appreciated that the second light source 112 the second light-emitting component 115 and the number of colors of the type of third light-emitting component 116 or supplement light can be according to needing to divide The color of the image data of image to be displayed determines, such as needs to divide red image to be displayed data, the second light source 112 It may include that the second light-emitting component 115 (such as red laser) sends out red supplement light, such as need the figure to be shown for dividing green As data, it may include that third light-emitting component 116 (such as green laser) sends out green supplement light to state second light source 112.
In present embodiment, first light-emitting component 113 is blue laser, and fluorescence is provided on the colour wheel 114 Material, exciting light for receiving the blue laser that first light-emitting component 113 is sent out simultaneously send out the first light, first light It may include the blue being emitted again after directly the exciting light that first light-emitting component 113 is sent out directly is emitted or is scattered The red light and green light that light and the fluorescent material are generated by the excitation.Accordingly, the second light source 112 include the second light-emitting component 115 for sending out red supplement light and the third light-emitting component 116 for sending out green supplement light.It is described First laser device and the quantity of second laser may be one, two or more, can specifically be selected according to actual needs. It is appreciated that the blue light sent out due to the colour wheel 114 is the blue laser that first light-emitting component 113 is sent out, it can It is wider with the gamut range of displaying, therefore the second light source 112 no longer needs to the light-emitting component that setting sends out blue supplementary light.
Referring to Fig. 5, Fig. 5 is the structural schematic diagram of colour wheel 114 shown in Fig. 4.The colour wheel 114 includes along the circumferential direction setting The first primary colours fluorescence area Rp, the first primary colours supplement region Rl, the second primary colours fluorescence area Gp, the second primary colours set supplement region Gl and third primary colours region B.The first primary colours fluorescence area Rp is provided with the first primary colours fluorescent material, and second primary colours are glimmering Light region Gp is provided with the second primary colours fluorescent material, and third primary colours region B can be provided with scattering material.First hair Optical element 113 sends out the exciting light (blue excitation light) of third primary colours, and the first primary colours fluorescence area Rp receives the third The exciting light of primary colours simultaneously sends out first primary lights (red light), and the first primary colours supplement region Rl receives second hair The first primary colours supplement light (red supplement light) that optical element 115 is sent out simultaneously sends out the first primary colours supplement light, second base Color fluorescence area Gp receives the exciting light of the third primary colours and sends out second primary lights (green light), second primary colours Supplement region Gl receives the second primary colours supplement light that the third light-emitting component 116 is sent out and sends out the second primary colours supplement Light.Wherein it is possible to understand, first primary lights that the first light source 111 is sent out, the second primary lights, third primary lights with The first primary colours supplement light, the second primary colours supplement light that the second light source 112 is sent out are defeated in the control device 131 Under the control of the light source control signal gone out, according to predetermined order (as shown in Figure 4 each region in the circumferential direction distributing order) and Periodically guided to the optical modulator module 132 via light processing element 119b and 119c.It is appreciated that in change embodiment party In formula, when the second light source 112 is located at side of the colour wheel 114 far from the first light source 111, the colour wheel can also Only need to include tri- regions Gp, Rp and B including supplement the region Gl and Rl.
It is appreciated that the light processing element 119b and 119c can be set to first light and second light place Light path on, even light is carried out to first light and second light and/or changes light path, and/or to first light and institute State that the second light is collected, spreads, shaping etc. is so that first light is irradiated to second light according to default spot size On the optical modulator module 132 or other light path elements.Described light processing element 119a, 119b and 119c may include even light member At least one of part (such as optical tunnel, fly's-eye lens), collecting lens, relay lens element element.In present embodiment, institute It includes collecting lens to state light processing element 119a, and the light processing element 119b may include that collecting lens, even optical element are (such as even Optical wand and fly's-eye lens) etc., the light processing element 119c is induction element, such as speculum.
Further, it should be noted that usually, the image data of image to be displayed includes three primary colours (RGB) The image data of image to be displayed can be sentenced after described image data processing module 120 receives the image data of image to be displayed Break each primary colours image to be displayed data gamut range, in present embodiment, due to the image data of the first primary colours (blue) It can not do and divide, therefore described image data processing module 120 can only judge the image of the image to be displayed of the first primary colours The gamut range of the image data of the image to be displayed of data and the second primary colours, and by the image to be displayed number of the third primary colours According to be directly provided to it is described control with optical modulator module 130.
It is appreciated that in the present embodiment, the image data of corresponding image to be displayed divide the first image data to be formed with For second image data, described first image data are divided into the first image data of the first primary colours and the first figure of the second primary colours As data, second image data is divided into the second image data of the first primary colours and the second image data of the second primary colours.And First light that the first light source 111 is sent out include the first primary lights, the second primary lights and third primary lights, described second Second light described in light source 112 includes the first primary colours supplement light and the second primary colours supplement light.In the first embodiment, the control And optical modulator module 130 modulates first primary lights, according to described second according to the first image data of first primary colours First image data of primary colours modulate second primary lights, according to the third primary colours image to be displayed image data tune Make the third primary lights, according to the second image data modulation the first primary colours supplement light of first primary colours, foundation institute The second image data for stating the second primary colours modulates the second primary colours supplement light.
Wherein, the three primary colours refer to redgreenblue, and first primary colours refer to red, and second primary colours refer to green, institute It states third primary colours and refers to blue.It will be appreciated that in other embodiments, first primary colours can also refer to green, described Second primary colours can also refer to red, and the reference of each primary colours can not be referred to as according to specific implementation situation variation with above-mentioned Limit.
Specifically, the control device 131 is for the first image data according to first primary colours, first primary colours The second image data, the first image data of second primary colours, the second image data of second primary colours, the third The image data of the image to be displayed of primary colours generates corresponding modulation control signal and light source control signal.The light source control letter First light source 111 number for controlling the light supply apparatus 110 sends out first primary lights, second primary lights, described The sequential of first primary colours supplement light, the second primary colours supplement light and the third primary lights, the corresponding modulation control letter Number for control the optical modulator module 132 modulate first primary lights, second primary lights, first primary colours supplement Light, the second primary colours supplement light and the third primary lights are to generate the corresponding projected light.
In the first embodiment, the optical modulator module 132 includes the first spatial light modulator, first spatial light Modulator is within the frame modulation time according to the first primary lights, the second base described in the corresponding modulation control signal time division modulation Coloured light, third primary lights, the first primary colours supplement light and the second primary colours supplement light.
It is appreciated that in a kind of change embodiment of the first embodiment, described image data processing module 120 can Only to analyze the gamut range of the image data of the image to be displayed of the first primary colours in wherein three primary colours, described first image data Be divided into the first image data of the first primary colours and the first image data of the second primary colours, first light include the first primary lights, Second primary lights and third primary lights, second light include the first primary colours supplement light, the control and optical modulator module 130 according to First primary lights are modulated according to the first image data of first primary colours, according to the first image data of second primary colours Modulate second primary lights, according to the image to be displayed of the third primary colours image data modulate the third primary lights, The second image data according to first primary colours modulates the first primary colours supplement light.
It is appreciated that in another change embodiment of the first embodiment, described image data processing module 120 The gamut range of the image data of the image to be displayed of all primary colours is analyzed, described first image data are divided into the of the first primary colours First image data of one image data, the first image data of the second primary colours and third primary colours, second image data point It is described for the second image data of the first primary colours, the second image data of the second image data of the second primary colours and third primary colours First light includes the first primary lights, the second primary lights and third primary lights, and second light includes the first primary colours supplement light, second Primary colours supplement light and third primary colours supplement light, the first image of the control and optical modulator module 130 according to first primary colours Data modulate first primary lights, according to the first image data modulation second primary lights of second primary colours, foundation First image data of the third primary colours modulates the third primary lights, the second image data tune according to first primary colours Make the first primary colours supplement light, according to second primary colours the second image data modulate the second primary colours supplement light and according to The third primary colours supplement light is modulated according to the second image data of the third primary colours.
Referring to Fig. 6, Fig. 6 is the structural schematic diagram of the second embodiment of optical projection system 200 of the present invention.Described second implements The optical projection system 200 and the optical projection system 100 of first embodiment of example are essentially identical, that is to say, that the throwing of the first embodiment Shadow system 100 description substantially be suitable for second embodiment optical projection system 200, the two main difference is that：Light source The concrete structure of device, the spatial light modulator quantity of the structure of colour wheel 214 and optical modulator module and image modulation sequential are It is different.
Specifically, in the second embodiment, the light supply apparatus includes first light source 211, second light source 212, light splitting Element 251, the first closing light element 252, induction element 253 (such as speculum) and the second closing light element 254.The first light source 211 include that the first light-emitting component 213 and colour wheel 214, the colour wheel 214 receive the third that first light-emitting component 213 is sent out The exciting light (such as blue laser) of primary colours simultaneously sends out first light, and first light includes the periodical timesharing of the colour wheel 214 The third primary lights (such as blue light) sent out and the first colour mixture light (such as sodium yellow), the first colour mixture light are described first The colour mixture light of primary lights and second primary lights.Referring to Fig. 7, Fig. 7 is the structural schematic diagram of the colour wheel 214, the color Wheel 214 may include two sectional areas B and Y, and fluorescent material (such as yellow fluorescent material) is provided on wherein sectional area Y, The first colour mixture light (sodium yellow) is generated for receiving the exciting light, and scattering material can be set on the sectional area B Material, for will be projected after the excitation light scattering.
The third primary lights that the beam splitter 251 sends out the colour wheel 214 guide extremely via the induction element 253 The first colour mixture light is also separated into first primary colours by the first spatial light modulator 232a, the beam splitter 251 Light (such as red light) and second primary lights (such as green light), first primary lights and second primary lights therein one Primary lights (such as red light) are directed to the first spatial light modulator 232a, and another primary lights (such as green light) are directed to The first closing light element 252, it is (such as green that the second light source 212 sends out primary colours supplement light corresponding with another primary lights Color supplement light) to the first closing light element 252, the first closing light element 252 is by another primary lights (such as green light) It is guided to the second space optical modulator 232b (such as green supplement light) with corresponding primary colours supplement light.Wherein, described Two light sources 212 include that the second light-emitting component 215 and third light-emitting component 216, second light-emitting component 215 send out described first Primary colours supplement light, the third light-emitting component 216 send out the second primary colours supplement light.The second closing light element 254 is used for The projected light that the projected light that the first spatial light modulator 232a is sent out is sent out with the second space optical modulator 232b It carries out closing light and guides the closing light to projection lens 240.
The optical modulator module includes an one first spatial light modulator 232a and second space optical modulator 232b.It is described First described in the corresponding modulation control signal modulations of the first image data of the first spatial light modulator 232a according to the first primary colours Second primary lights and foundation described in primary lights, the corresponding modulation control signal modulation of the first image data according to the second primary colours The image to be displayed data of third primary colours modulate the third primary lights.The second space optical modulator 232b is according to described Second primary colours supplement light described in the corresponding modulation control signal modulation of the second image data of one primary colours, according to second primary colours The corresponding modulation control signal modulation of the second image data described in the second primary colours supplement light.Further, the second space First base described in the corresponding modulation control signal modulations of the first image data of the optical modulator 232b also according to first primary colours Second primary lights described in coloured light and the corresponding modulation control signal modulation of the first image data according to second primary colours.
Specifically, referring to Fig. 8, Fig. 8 is the image modulation sequence diagram of optical projection system 200 shown in Fig. 6, wherein B, Gl, Gp, Rl, Rp respectively represent the third primary lights, the second primary colours supplement light, the second primary lights, the first primary colours supplement light and the first base Coloured light.Picture numbers of the first spatial light modulator 232a in the first period T1 according to the image to be displayed of the third primary colours According to third primary lights described in corresponding modulation control signal modulation, the second space optical modulator 232b is in first period Second primary colours supplement light described in the corresponding modulation control signal modulations of the second image data of the T1 according to second primary colours；It is described First image data corresponding modulation controls of the first spatial light modulator 232a in the second period T2 according to first primary colours First primary lights described in signal modulation, the second space optical modulator 232b is in second period T2 according to second base Second primary lights described in the corresponding modulation control signal modulation of the first image data of color；The first spatial light modulator 232a Described in image data corresponding modulation control signal modulations of the third period T3 according to the image to be displayed of the third primary colours Third primary lights, second images of the second space optical modulator 232b in third period T3 according to first primary colours Second primary colours supplement light described in the corresponding modulation control signal modulation of data；The first spatial light modulator 232a is at the 4th Second primary lights described in the corresponding modulation control signal modulations of the first image data of the section T4 according to the second primary colours, described second is empty Between optical modulator 232b the 4th period T4 according to the first primary colours the corresponding modulation control signal tune of the first image data Make first primary lights.
Referring to Fig. 9, Fig. 9 is the image modulation sequence diagram of the 3rd embodiment of optical projection system of the present invention.The third is real The optical projection system 200 of the optical projection system and second embodiment of applying example is essentially identical, that is to say, that the projection of the second embodiment System 200 description substantially be suitable for 3rd embodiment optical projection system, the two main difference is that：Optical modulator module Image modulation sequential it is different.
Specifically, as shown in figs. 6 and 9, in the 3rd embodiment, the first spatial light modulator 232a is first Third base described in the corresponding modulation control signal modulations of image data of the period T1 according to the image to be displayed of the third primary colours Coloured light, second image datas pair of the second space optical modulator 232b in first period T1 according to second primary colours Second primary colours supplement light described in the modulation control signal modulation answered；The first spatial light modulator 232a the second period T2 according to According to the first primary lights, the second space described in the corresponding modulation control signal modulation of the first image data of first primary colours Second image data corresponding modulation control signals of the optical modulator 232b in second period T2 according to second primary colours Modulate the second primary colours supplement light；The first spatial light modulator 232a third period T3 according to the first primary colours first First primary lights described in the corresponding modulation control signal modulation of image data, the second space optical modulator 232b is described First primary colours supplement light described in the corresponding modulation control signal modulation of the second image data of three periods T3 according to the first primary colours.
0 and Figure 11 are please referred to Fig.1, Figure 10 is the structural schematic diagram of the fourth embodiment of optical projection system 300 of the present invention, Figure 11 It is the image modulation sequence diagram of optical projection system 300 shown in Figure 10.The optical projection system 300 and second embodiment of the fourth embodiment Optical projection system 200 it is essentially identical, that is to say, that the description of the optical projection system 200 of the second embodiment substantially be applicable in In the optical projection system 300 of fourth embodiment, the two main difference is that：The concrete structure and light modulation mould of second light source 320 The image modulation sequential of block 332a and 332b are different.
Specifically, in the fourth embodiment, the light supply apparatus includes first light source 311, second light source 312, light splitting Element 351, induction element 352 and 353 and closing light element 354, the first light source 311 include the first light-emitting component 313 and color Wheel 314, the exciting light (blue laser) that the colour wheel 314 receives the third primary colours that first light-emitting component 313 is sent out are concurrent Go out first light, first light includes that the third primary lights that 314 timesharing of the colour wheel is sent out and the first colour mixture light are (yellow Coloured light), the first colour mixture light is the colour mixture light of first primary lights and second primary lights.The colour wheel 314 and institute The structure for stating colour wheel 214 is identical, just repeats no more herein.The first colour mixture light is first primary lights and second base The colour mixture light of coloured light, the beam splitter guide the third primary lights that the colour wheel 314 is sent out to the first spatial light tune The first colour mixture light is also separated into first primary lights and second primary colours by device 332a processed, the beam splitter 351 Light, and as described in first primary lights and second primary lights primary lights therein are directed to (such as the first primary lights) First spatial light modulator 332a, another primary lights are directed to the induction element 353, and the first of the second light source shines Element 315 sends out a primary colours supplement light described to the beam splitter 351, and the beam splitter 351 also supplements a primary colours Light (such as the first primary colours supplement light) is guided to the first spatial light modulator 332a；Second light-emitting component of the second light source 316 send out primary colours supplement light (such as the second primary colours supplement light) corresponding with another primary lights to the induction element 352, institute Induction element 352 is stated to guide another primary lights (such as the second primary lights) to described second with corresponding primary colours supplement light Spatial light modulator 332b.The closing light element 354 be used for the projected light that sends out the first spatial light modulator 332a with The projected light that the second space optical modulator 332b is sent out carries out closing light and guides the closing light to projection lens 340.
Figures of the first spatial light modulator 332a in the first period T1 according to the image to be displayed of the third primary colours The third primary lights as described in data corresponding modulation control signal modulation；The first spatial light modulator 332a is in the second period Second primary lights described in the corresponding modulation control signal modulations of the first image data of the T2 according to second primary colours, described second First image data corresponding modulation controls of the spatial light modulator 332b in second period T2 according to first primary colours First primary lights described in signal modulation；The first spatial light modulator 332a third period T3 according to the second primary colours second Second primary colours supplement light described in the corresponding modulation control signal modulation of image data, the second space optical modulator 332b is in institute State the first primary colours supplement described in the corresponding modulation control signal modulation of the second image data of third period T3 according to the first primary colours Light.
2 and Figure 13 are please referred to Fig.1, Figure 12 is the structural schematic diagram of the 5th embodiment of optical projection system 400 of the present invention, Figure 12 It is the image modulation sequence diagram of optical projection system 400 shown in Figure 13.The optical projection system 400 and second embodiment of 5th embodiment Optical projection system 200 it is essentially identical, that is to say, that the description of the optical projection system 200 of the second embodiment substantially be applicable in In the optical projection system 400 of the 5th embodiment, the two main difference is that：The concrete structure and optical modulator module of light supply apparatus Spatial light modulator quantity and image modulation sequential it is different.
In 5th embodiment, the optical modulator module includes one first spatial light modulator 432a, a second space An optical modulator 432b and third spatial light modulator 432c.The first spatial light modulator 432a is waited for according to third primary colours Show the first primary lights described in the corresponding modulation control signal modulation of image data of image, such as first spatial light modulator 432a is in the first period T1 and the corresponding tune of image data in the second period T2 according to the image to be displayed of the third primary colours First primary lights described in system control signal modulation.First figure of the second space optical modulator 432b timesharing according to the first primary colours The first primary lights and the second image data pair according to first primary colours as described in the corresponding modulation control signal modulation of data First primary colours supplement light described in the modulation control signal modulation answered, such as second space optical modulator 432b is in the first period T1 First primary lights and in the second period T2 described in the corresponding modulation control signal modulation of the first image data according to the first primary colours First primary colours supplement light described in the corresponding modulation control signal modulation of the second image data according to first primary colours.Described The described in the corresponding modulation control signal modulation of the first image data of the three spatial light modulator 432c timesharing according to the second primary colours Second primary colours described in two primary lights and the corresponding modulation control signal modulation of the second image data according to second primary colours are mended Light is filled, such as first image data corresponding tune of the third spatial light modulator 432c in the first period T1 according to the second primary colours Second primary lights and the second image data correspondence in the second period T2 according to second primary colours described in system control signal modulation Modulation control signal modulation described in the second primary colours supplement light.
The light supply apparatus includes first light source 410, second light source 420, the first beam splitter 451, the second beam splitter 452, induction element 453 and closing light element 454.The first light source 410 includes the first light-emitting component 413 and colour wheel 414, described Colour wheel 414 receives the exciting light (such as blue laser) for the third primary colours that first light-emitting component 413 is sent out and sends out described One light, first light include the third primary lights that 414 timesharing of the colour wheel is sent out and the first colour mixture light (such as sodium yellow), The first colour mixture light is the colour mixture light of first primary lights and second primary lights.First beam splitter 451 will The third primary lights that the colour wheel 414 is sent out are guided to the first spatial light modulator 432a, first beam splitter 451 Also the first colour mixture light is guided to second beam splitter 452, second beam splitter 452 is by first colour mixture Light is separated into first primary lights and second primary lights, and first primary lights (such as red light) are directed to described Two spatial light modulator 432b, second primary lights are directed to the third spatial light modulator 432c, second light Source sends out the first primary colours supplement light to the second space optical modulator 432b, and the second light source is sent out and second primary colours Supplement light is to the third spatial light modulator 432c.Wherein, the second light source 412 includes the second light-emitting component 415 and the Three light-emitting components 416, second light-emitting component 415 send out the first primary colours supplement light, and the third light-emitting component 416 is sent out Go out the second primary colours supplement light.The projection that the closing light element 454 is used to send out the first spatial light modulator 432a The projected light that light, the second space optical modulator 432b and third spatial light modulator 432c are sent out carries out closing light and will The closing light is guided to projection lens 440.
Second beam splitter 452 may include first area and second area, and the first area transmits the second base Color supplement light and the first primary colours supplement light of reflection, the second area transmit the first primary lights and the second primary lights of reflection.It is described Second beam splitter, 452 cycle movement makes the first area be located at that the second light source is sent out in the first period T1 In light path where two light and the second area is where the first colour mixture light that the second period T2 is located at that the colour wheel is sent out In light path.The first primary colours supplement light is reflected to the induction element 453b and transmission in the first area in first period T1 The second primary colours supplement light is to the third spatial light modulator 432c, and the induction element 453b is in the first period T1 The first primary colours supplement light is guided to the second space optical modulator 432b.The second area is in second period T2 reflects the second primary lights in the first colour mixture light to the second space optical modulator 432b, and it is mixed to transmit described first The first primary lights in coloured light are to the induction element 453b, and the second period T2 described in the induction element 453b is by described first Primary lights are guided to the second space optical modulator 432b.
In addition, it is necessary to which explanation is, it will be understood that in the structure chart of the described second to the 5th embodiment, first light Light processing element can also be set in the light path where second light, even light is carried out to first light and second light And/or change light path, and/or first light and second light are collected, spread, shaping etc. is so that first light It is irradiated on the optical modulator module or other light path elements according to default spot size with second light.The light processing member Part may include at least one of even optical element (such as optical tunnel, fly's-eye lens), collecting lens, relay lens element or one Kind, it can specifically determine according to actual needs, just repeat no more herein.It is appreciated that the optical projection system of the second to the 5th embodiment Including image data processing module 120 and the control device 131 in first embodiment, but because with the work(in first embodiment Can be essentially identical, therefore come without being illustrated in the structure chart of the described second to the 5th embodiment, but the one of the field is not influenced As understanding of the technical staff to the described second to the 5th embodiment operation principle.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other Technical field is included within the scope of the present invention.

Claims (21)

1. a kind of optical projection system, it is characterised in that：The optical projection system includes：
Light supply apparatus, for sending out the first light and the second light；
Image data processing module, the gamut range for judging image to be displayed according to the image data of image to be displayed, if The color gamut value of the one part of pixel of the image to be displayed is located within the first gamut range, the color gamut value position of another part pixel Except first gamut range, the image data of the image to be displayed is divided by described image data processing module One image data and the second image data, wherein described first image data include color gamut value be located at first gamut range it The image data of interior pixel, second image data include the pixel that color gamut value is located at except first gamut range Image data；
Control and optical modulator module, for modulating first light according to described first image data to generate corresponding projection Light, the control and optical modulator module are additionally operable to modulate second light according to second image data to generate corresponding throwing Shadow light modulates first light and second light to generate corresponding projected light according to second image data；And
Projection lens, for projecting the projected light modulated according to described first image data and according to second image The projected light that data are modulated is to same area, to generate the image to be displayed.
2. optical projection system as described in claim 1, it is characterised in that：The control and optical modulator module include control device with Optical modulator module, the control device are used to generate the first modulation control signal, according to described second according to the first image data Image data generates the second modulation control signal, and is additionally operable to generate light source control signal, and the light source control signal is for controlling The sequential that the light supply apparatus sends out first light and second light is made, the optical modulator module includes a space light modulation Device, the first modulation control signal is for controlling the spatial light modulator in the first period according to described first image data First light is modulated, the second modulation control signal is for controlling the spatial light modulator described in the second period foundation Second image data modulates second light or first light and second light.
3. optical projection system as described in claim 1, it is characterised in that：The control and optical modulator module include control device with Optical modulator module, the control device are used to generate the first modulation control signal, according to described second according to the first image data Image data generates the second modulation control signal, and the optical modulator module includes the first spatial light modulator and second space light tune Device processed, the first modulation control signal are modulated for controlling first spatial light modulator according to described first image data First light, the second modulation control signal is for controlling the second space optical modulator according to second picture number According to modulation second light or first light and second light.
4. optical projection system as described in claim 1, it is characterised in that：It is defined as the second colour gamut except first gamut range Range, first gamut range are DCI gamut ranges, and second gamut range is located at the periphery of first gamut range And the part of first gamut range is removed for REC gamut ranges.
5. optical projection system as described in claim 1, it is characterised in that：The image data of the image to be displayed includes three primary colours Image to be displayed image data, the figure to be shown of described image data processing module analysis first primary colours wherein in three primary colours The gamut range of the image data of picture, first light include the first primary lights, the second primary lights and third primary lights, and described the Two light include the first primary colours supplement light, and the control and optical modulator module are modulated according to the first image data of first primary colours First primary lights modulate second primary lights, according to the third according to the first image data of second primary colours The image data of the image to be displayed of primary colours modulates the third primary lights, the second image data tune according to first primary colours Make the first primary colours supplement light.
6. optical projection system as described in claim 1, it is characterised in that：The image data of the image to be displayed includes three primary colours Image to be displayed image data, the picture number of the described image data processing module analysis wherein image to be displayed of three primary colours According to gamut range, described first image data are divided into the first image data of the first primary colours, the first picture number of the second primary colours According to and third primary colours the first image data, second image data is divided into the second image data of the first primary colours, the second base Second image data of color and the second image data of third primary colours, first light include the first primary lights, the second primary lights With third primary lights, second light includes the first primary colours supplement light, the second primary colours supplement light and third primary colours supplement light, described Control and optical modulator module modulate first primary lights, according to described second according to the first image data of first primary colours First image data of primary colours modulates second primary lights, the first image data modulation described the according to the third primary colours Three primary colours light modulates the first primary colours supplement light, according to second base according to the second image data of first primary colours Second image data of color modulates the second primary colours supplement light and the second image data according to the third primary colours modulates institute State third primary colours supplement light.
7. optical projection system as described in claim 1, it is characterised in that：The image data of the image to be displayed includes three primary colours Image to be displayed image data, the image of the described image data processing module analysis wherein image to be displayed of the first primary colours The gamut range of data and the image data of the image to be displayed of the second primary colours, described first image data are divided into the first primary colours First image data of the first image data and the second primary colours, second image data are divided into the second picture number of the first primary colours According to the second image data with the second primary colours, first light includes the first primary lights, the second primary lights and third primary lights, institute It includes the first primary colours supplement light and the second primary colours supplement light to state the second light, and the control and optical modulator module are according to first base First image data of color modulates first primary lights, the first image data modulation described second according to second primary colours Primary lights modulate the third primary lights, according to described first according to the image data of the image to be displayed of the third primary colours Second image data of primary colours modulates the first primary colours supplement light, the second image data modulation institute according to second primary colours State the second primary colours supplement light.
8. optical projection system as claimed in claim 7, it is characterised in that：The control and optical modulator module include control device with Optical modulator module, the control device be used for according to the first image data of first primary colours, first primary colours second Image data, the first image data of second primary colours, the second image data of second primary colours, the third primary colours The image data of image to be displayed generates corresponding modulation control signal and light source control signal, the light source control signal are used for It controls the light supply apparatus and sends out first primary lights, second primary lights, the first primary colours supplement light, described second The sequential of primary colours supplement light and the third primary lights, the corresponding modulation control signal is for controlling the optical modulator module Modulate first primary lights, second primary lights, the first primary colours supplement light, the second primary colours supplement light and described Third primary lights are to generate the corresponding projected light.
9. optical projection system as claimed in claim 8, it is characterised in that：The optical modulator module includes the first space light modulation Device, first spatial light modulator is within the frame modulation time according to described in the corresponding modulation control signal time division modulation First primary lights, the second primary lights, third primary lights, the first primary colours supplement light and the second primary colours supplement light.
10. optical projection system as claimed in claim 9, it is characterised in that：The light supply apparatus includes first light source and the second light Source, the first light source is for sending out first light, and the second light source is for sending out second light, the first light source Including the first light-emitting component and colour wheel, first light-emitting component sends out exciting light, and it is concurrent that the colour wheel receives the exciting light Go out first light, the second light source includes the second light-emitting component and third light-emitting component, and second light-emitting component is sent out The first primary colours supplement light, the third light-emitting component send out the second primary colours supplement light.
11. optical projection system as claimed in claim 10, it is characterised in that：First light-emitting component, the second luminous member Part and the third light-emitting component may be contained within the same side of the colour wheel, and the colour wheel includes peripherally disposed first Primary colours fluorescence area, the first primary colours supplement region, the second primary colours fluorescence area, the second primary colours supplement region and third primary colours area Domain, the first primary colours fluorescence area are provided with the first primary colours fluorescent material, and the second primary colours fluorescence area is provided with second Primary colours fluorescent material, first light-emitting component send out the exciting light of third primary colours, and the first primary colours fluorescence area receives institute It states the exciting light of third primary colours and sends out first primary lights, the first primary colours supplement region receives the described second luminous member The first primary colours supplement light that part is sent out simultaneously sends out the first primary colours supplement light, and the second primary colours fluorescence area receives described the The exciting light of three primary colours simultaneously sends out second primary lights, and the second primary colours supplement region receives the third light-emitting component hair The second primary colours supplement light for going out simultaneously sends out the second primary colours supplement light.
12. optical projection system as claimed in claim 8, it is characterised in that：The optical modulator module includes one first spatial light tune Device processed and a second space optical modulator, first spatial light modulator are corresponding according to the first image data of the first primary colours First primary lights described in modulation control signal modulation, the corresponding modulation control signal tune of the first image data according to the second primary colours It makes second primary lights and the image to be displayed data according to third primary colours modulates the third primary lights, described second is empty Between the first primary colours described in the corresponding modulation control signal modulation of the second image data of the optical modulator according to first primary colours mend Fill the second primary colours supplement light described in light, the corresponding modulation control signal modulation of the second image data according to second primary colours.
13. optical projection system as claimed in claim 12, it is characterised in that：The second space optical modulator is also according to described First primary lights described in the corresponding modulation control signal modulation of the first image data of one primary colours and according to second primary colours Second primary lights described in the corresponding modulation control signal modulation of first image data, first spatial light modulator is at first Third primary lights described in the corresponding modulation control signal modulation of image data of the section according to the image to be displayed of the third primary colours, Second image data corresponding modulation control of the second space optical modulator in first period according to second primary colours Second primary colours supplement light described in signal modulation processed；First spatial light modulator is in the second period according to first primary colours First primary lights described in the corresponding modulation control signal modulation of first image data, the second space optical modulator is described Second primary lights described in the corresponding modulation control signal modulation of the first image data of two periods according to second primary colours；It is described Image data corresponding modulation control of first spatial light modulator in the third period according to the image to be displayed of the third primary colours Third primary lights described in signal modulation processed, the second space optical modulator is in the third period according to first primary colours Second primary colours supplement light described in the corresponding modulation control signal modulation of second image data；First spatial light modulator is Second primary lights described in the corresponding modulation control signal modulation of the first image data of four periods according to the second primary colours, described second First image data corresponding modulation control signal modulation institute of the spatial light modulator in the 4th period according to the first primary colours State the first primary lights.
14. optical projection system as claimed in claim 12, it is characterised in that：First spatial light modulator the first period according to It is described according to third primary lights described in the corresponding modulation control signal modulation of the image data of the image to be displayed of the third primary colours Second image data corresponding modulation control letter of the second space optical modulator in first period according to second primary colours Number modulation the second primary colours supplement light；First spatial light modulator the second period according to first primary colours first First primary lights described in the corresponding modulation control signal modulation of image data, the second space optical modulator is at described second Second primary colours supplement light described in the corresponding modulation control signal modulation of the second image data of the section according to second primary colours；It is described First image data corresponding modulation control signal modulation institute of first spatial light modulator in the third period according to the first primary colours The first primary lights are stated, the second space optical modulator is corresponded in the third period according to the second image data of the first primary colours Modulation control signal modulation described in the first primary colours supplement light.
15. optical projection system as claimed in claim 12, it is characterised in that：The light supply apparatus includes first light source, the second light Source, beam splitter, the first closing light element, the first light source include the first light-emitting component and colour wheel, described in the colour wheel receives The exciting light for the third primary colours that first light-emitting component is sent out simultaneously sends out first light, and first light includes the colour wheel timesharing The third primary lights and the first colour mixture light sent out, the first colour mixture light are first primary lights and second primary colours The colour mixture light of light, the beam splitter guide the third primary lights that the colour wheel is sent out to first spatial light modulator, The first colour mixture light is also separated into first primary lights and second primary lights, first base by the beam splitter Coloured light is directed to first spatial light modulator, and second primary lights are directed to the first closing light element, described Second light source send out with the second primary colours supplement light to the first closing light element, the first closing light element is by described second Primary colours supplement light is guided to the second space optical modulator.
16. optical projection system as claimed in claim 8, it is characterised in that：The optical modulator module includes one first spatial light tune Device processed and a second space optical modulator, first spatial light modulator wait showing in the first period according to the third primary colours Third primary lights described in the corresponding modulation control signal modulation of image data of diagram picture；First spatial light modulator is Second primary lights described in the corresponding modulation control signal modulation of the first image data of two periods according to second primary colours, it is described First image data corresponding modulation control letter of the second space optical modulator in second period according to first primary colours Number modulation first primary lights；Second image data of first spatial light modulator in the third period according to the second primary colours Second primary colours supplement light described in corresponding modulation control signal modulation, the second space optical modulator the third period according to According to the first primary colours supplement light described in the corresponding modulation control signal modulation of the second image data of the first primary colours.
17. optical projection system as claimed in claim 16, it is characterised in that：The light supply apparatus includes first light source, the second light Source, beam splitter, induction element, the first light source include the first light-emitting component and colour wheel, and the colour wheel receives described first The exciting light for the third primary colours that light-emitting component is sent out simultaneously sends out first light, and first light includes that the colour wheel timesharing is sent out The third primary lights and the first colour mixture light, the first colour mixture light is first primary lights and second primary lights Colour mixture light, the beam splitter guides the third primary lights that the colour wheel is sent out to first spatial light modulator, described The first colour mixture light is also separated into first primary lights and second primary lights by beam splitter, and by first base Coloured light is directed to first spatial light modulator with second primary lights primary lights therein, and another primary lights are drawn It is directed at the induction element, the second light source sends out a primary colours supplement light described to the beam splitter, and the beam splitter is also The one primary colours supplement light is guided to first spatial light modulator；The second light source is sent out and another primary lights Corresponding primary colours supplement light is to the induction element, and the induction element is by another primary lights and corresponding primary colours supplement light It guides to the second space optical modulator.
18. optical projection system as claimed in claim 8, it is characterised in that：The optical modulator module includes one first spatial light tune Device, a second space optical modulator and a third spatial light modulator processed, first spatial light modulator is according to the third Third primary lights described in the corresponding modulation control signal modulation of image to be displayed data of primary colours, the second space optical modulator First primary lights and according to described described in the corresponding modulation control signal modulation of the first image data of the timesharing according to the first primary colours First primary colours supplement light described in the corresponding modulation control signal modulation of the second image data of first primary colours；The third spatial light Second primary lights described in the corresponding modulation control signal modulation of the first image data of modulator timesharing according to the second primary colours and according to According to the second primary colours supplement light described in the corresponding modulation control signal modulation of the second image data of second primary colours.
19. optical projection system as claimed in claim 18, it is characterised in that：The light supply apparatus includes first light source, the second light Source, the first beam splitter, the second beam splitter, the first light source include the first light-emitting component and colour wheel, and the colour wheel receives The exciting light for the third primary colours that first light-emitting component is sent out simultaneously sends out first light, and first light includes the colour wheel The third primary lights and the first colour mixture light that timesharing is sent out, the first colour mixture light are first primary lights and described second The colour mixture light of primary lights, first beam splitter guide the third primary lights that the colour wheel is sent out to first spatial light Modulator, first beam splitter also guide the first colour mixture light to second beam splitter, second light splitting The first colour mixture light is separated into first primary lights and second primary lights by element, and first primary lights are guided To the second space optical modulator, second primary lights are directed to the third spatial light modulator, second light Source sends out the first primary colours supplement light to the second space optical modulator, and the second light source is sent out to be supplemented with second primary colours Light is to the third spatial light modulator.
20. a kind of projecting method comprising following steps：
The gamut range of image to be displayed is judged according to the image data of image to be displayed,
If the color gamut value of the one part of pixel of the image to be displayed is located within first gamut range, another part pixel Color gamut value be located at except first gamut range, the image data of the image to be displayed is divided into the first image data With the second image data, wherein described first image data include the pixel that color gamut value is located within first gamut range Image data, second image data include the image data for the pixel that color gamut value is located at except first gamut range；
The first light is modulated to generate corresponding projected light, and according to second image data according to described first image data Second light is modulated to generate corresponding projected light or modulate first light and described according to second image data Second light is to generate corresponding projected light；And
The projected light and modulate to obtain according to second image data that projection foundation described first image data are modulated Projected light to same area, to generate the image to be displayed.
21. a kind of image processing method is used for optical projection system, the method includes：
Image data according to image to be displayed judges the gamut range of image to be displayed,
If the color gamut value of the one part of pixel of the image to be displayed is located within first gamut range, another part pixel Color gamut value be located at except first gamut range, the image data of the image to be displayed is divided into the first image data With the second image data, wherein described first image data include the image that color gamut value is located at the pixel of first gamut range Data, second image data include the image data for the pixel that color gamut value is located at except first gamut range.
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