CN106292142B - A kind of light emitting device and its light-emitting control method, projection device - Google Patents

A kind of light emitting device and its light-emitting control method, projection device Download PDF

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Publication number
CN106292142B
CN106292142B CN201510245671.9A CN201510245671A CN106292142B CN 106292142 B CN106292142 B CN 106292142B CN 201510245671 A CN201510245671 A CN 201510245671A CN 106292142 B CN106292142 B CN 106292142B
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light
chromaticity coordinates
compensatory
compensation
gamut regions
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CN106292142A (en
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李屹
王则钦
郭祖强
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Shenzhen Appotronics Corp Ltd
Shenzhen Appotronics Technology Co Ltd
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Appotronics Corp Ltd
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Priority to CN201510245671.9A priority Critical patent/CN106292142B/en
Priority to PCT/CN2016/081393 priority patent/WO2016180298A1/en
Publication of CN106292142A publication Critical patent/CN106292142A/en
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings

Abstract

The invention discloses a kind of light emitting device and its light-emitting control methods, projection device.Light emitting device includes main light source, makes light emitting device emit three kinds of primary lights by opening main light source, the gamut regions formed in chromaticity coordinates figure are the first gamut regions；Light emitting device further includes the compensatory light for emitting compensation light, and compensation light is for compensating at least one of three kinds of primary lights light.If the chromaticity coordinates of all pixels of present frame projected image is completely in the first gamut regions, controlling main light source unlatching makes light emitting device emit three kinds of primary lights, and controls compensatory light and do not shine；Chromaticity coordinates is located at the pixel except the first gamut regions if it exists, then controls main light source unlatching, and controlling compensatory light unlatching makes light emitting device transmitting compensate light.It is not turned on compensatory light in the case where the chromaticity coordinates of all pixels is all in the first gamut regions, the first compensatory light is just opened in the case where there is pixel to be located at except the first gamut regions, to reach energy-efficient effect.

Description

A kind of light emitting device and its light-emitting control method, projection device
Technical field
The present invention relates to projection arts, and in particular to a kind of light emitting device and its light-emitting control method, projection device.
Background technique
As shown in Figure 1 for the projection device of the prior art using before compensatory light with colour gamut result schematic diagram later, The projection device of the prior art is illustrated in figure 2 using, with gamut range contrast schematic diagram later, Fig. 2 is before compensatory light Compensation light used by the projection device of the schematic diagram made for ease of illustration of Fig. 1, Fig. 1 and Fig. 2 is red laser.In conjunction with Fig. 1 With Fig. 2 it is found that in the prior art, the feux rouges in the three primary colours needed for the projection device (produces when being fluorescence for example, by using color of light Generating apparatus generates three primary colours light sequence by the fluorescent powder of color light generating device), colour gamut is minimum, i.e. in Fig. 2 shown in GBR Range；When the feux rouges in three primary colours is laser (only with red laser as the feux rouges in three primary colours, color at this time Light generating device does not generate red fluorescence), a certain range of colour gamut can be also obtained, i.e. range shown in GBR ' in Fig. 2；When three When feux rouges in primary colours is the mixed light of red fluorescence and red laser, in available maximum colour gamut, that is, Fig. 2 shown in GBR " Range.The prior art is pressed, when feux rouges is fluorescence, feux rouges chromaticity coordinates can arrive Rec.709 requirement, by mixing red laser Afterwards, colour gamut can be expanded to DCI requirement, and because fluorescence is mixed with laser, can eliminate laser bring speckle effect.
But for the prior art, if only taking red fluorescence as red primaries light, to Mr. Yu's frame image, color The color for the pixel that coordinate is fallen in except GBR cannot effectively be shown.
Equally, if only taking red laser as red primaries light, to Mr. Yu's frame image, chromaticity coordinates fall in GBR ' it The color of outer pixel cannot effectively be shown.
And situation of the mixed light of red fluorescence and red laser as red primaries light is used, for certain images, by In picture all pixels do not need to open simultaneously correspond to red fluorescence in this way using to the region RBR " all in GBR Light source with red laser is unfavorable for saving the energy and spending it will cause very big waste of energy, has seriously affected projection and has set The practicability of standby product.
Summary of the invention
According to the first aspect of the invention, a kind of light-emitting control method of light emitting device is provided, light emitting device includes key light Source, light emitting device are emitted the first light comprising three primary colours light when opening main light source, and the first light forms first in chromaticity coordinates figure Gamut regions；Light emitting device further includes the compensatory light for emitting compensation light, and light emitting device is equal in main light source and compensatory light Outgoing includes the second light of three primary colours light when unlatching, and compensation at least one of light and the first light primary colours actinic light forms the second light One of primary lights, the chromaticity coordinates of at least a kind of primary lights and the first light include in the three primary colours light that the second light includes three The chromaticity coordinates of any one primary lights in primary lights is different, and the second light forms the second gamut regions in chromaticity coordinates figure；
Light-emitting control method comprises the following processes:
The chromaticity coordinates for obtaining all pixels for the present frame projected image that will be projected judges that the color of all pixels is sat Whether mark is all in the first gamut regions；
If the chromaticity coordinates of all pixels is completely in the first gamut regions, main light source unlatching is controlled, and control compensation light Source does not shine；
Chromaticity coordinates is located at the pixel except the first gamut regions if it exists, then controls main light source and compensatory light is opened, The chromaticity coordinates of all pixels is set to be in the second gamut regions.
Chromaticity coordinates is located at the pixel except the first gamut regions if it exists, then controls main light source and compensatory light and open tool Body includes: the ratio for adjusting main light source luminous intensity and compensatory light luminous intensity, and the chromaticity coordinates of all pixels is made to be in the In two gamut regions.
The ratio for adjusting main light source luminous intensity and compensatory light luminous intensity makes the chromaticity coordinates of all pixels be in the Two gamut regions specifically include: adjusting the ratio of main light source luminous intensity and compensatory light luminous intensity, make the color of all pixels Coordinate is in the second gamut regions, and the chromaticity coordinates of at least one pixel is on the sideline of the second gamut regions.
It includes: the pixel being located at except the first gamut regions according to chromaticity coordinates that control main light source and compensatory light, which are opened, The first compensation light of distributed controll compensatory light transmitting and/or the second compensation light, first compensates the first primary colours in light and the first light Actinic light forms the first primary lights in the second light, and the second primary colours actinic light in the second compensation light and the first light forms the second light In the second primary lights.
It is located at distributed controll compensatory light transmitting the first compensation light of the pixel except the first gamut regions according to chromaticity coordinates And/or second compensation light specifically include: when in the pixel that chromaticity coordinates is located at except the first gamut regions in the presence of being distributed in third color When pixel in the region of domain, control compensatory light transmitting the first compensation light, third gamut regions be the first compensation light chromaticity coordinates, The gamut regions that the chromaticity coordinates of the first primary lights in first light and the chromaticity coordinates of the third primary lights in the first light are surrounded； When there is the pixel being distributed in the 4th gamut regions in the pixel except chromaticity coordinates is located at the first gamut regions, control compensation Light source transmitting the second compensation light, the color of second primary lights of the 4th gamut regions for the chromaticity coordinates of the second compensation light, in the first light The gamut regions that the chromaticity coordinates of third primary lights in coordinate and the first light is surrounded.
The ratio for adjusting main light source luminous intensity and compensatory light luminous intensity makes the chromaticity coordinates of all pixels be in the It is specifically included in two gamut regions: when the pixel that chromaticity coordinates is located at except the first gamut regions is distributed in third gamut regions When, adjust main light source luminous intensity and compensatory light transmitting first compensation light luminous intensity ratio, make the first compensation light and The chromaticity coordinates of the light combination of the first primary lights in first light is that the color in First Line and second-line intersection point with the first compensation light is sat The nearest chromaticity coordinates of subject distance (or with chromaticity coordinates of the first primary lights of the first light apart from farthest chromaticity coordinates), the second color Domain region is the chromaticity coordinates of the light combination of the first compensation light and the first primary lights in the first light, the second primary lights in the first light The gamut regions that the chromaticity coordinates of third primary lights in chromaticity coordinates and the first light is surrounded；When chromaticity coordinates is located at the first colour gamut area When pixel except domain is distributed in the 4th gamut regions, the second compensation of main light source luminous intensity and compensatory light transmitting is adjusted The ratio of the luminous intensity of light, make the chromaticity coordinates third line of the light combination of the second primary lights in the second compensation light and the first light with Chromaticity coordinates in the intersection point of 4th line with the second compensation light apart from nearest chromaticity coordinates, the second gamut regions be the second compensation light with The chromaticity coordinates of the light combination of the second primary lights in first light, the first primary lights in the first light chromaticity coordinates and the first light in The gamut regions that the chromaticity coordinates of third primary lights is surrounded；When i.e. presence in the pixel that chromaticity coordinates is located at except the first gamut regions The pixel being distributed in third gamut regions, but exist be distributed in the 4th gamut regions pixel when, adjust main light source shine The ratio of intensity and the luminous intensity of compensatory light transmitting the first compensation light, makes the first primary colours in the first compensation light and the first light The chromaticity coordinates of the light combination of light is with the chromaticity coordinates of the first compensation light in First Line and second-line intersection point apart from nearest chromaticity coordinates, Simultaneously adjust main light source luminous intensity and compensatory light transmitting second compensation light luminous intensity ratio, make the second compensation light and The chromaticity coordinates of the light combination of the second primary lights in first light is that the color in the intersection point of third line and the 4th line with the second compensation light is sat The nearest chromaticity coordinates of subject distance, the second gamut regions are that the color of the light combination of the first compensation light and the first primary lights in the first light is sat The chromaticity coordinates and third primary lights in the first light of the light combination of mark, the second compensation light and the second primary lights in the first light The gamut regions that chromaticity coordinates is surrounded.Wherein First Line is the chromaticity coordinates of the third primary lights in the second light and is distributed in third color The extended line of the line of the chromaticity coordinates of the pixel in domain region, the second line are first in the chromaticity coordinates and the first light of the first compensation light The line of the chromaticity coordinates of primary lights, third line are the chromaticity coordinates of the third primary lights in the first light and are distributed in the 4th gamut regions Pixel chromaticity coordinates line extended line, the 4th line be second compensation light chromaticity coordinates and the first light in the second primary lights Chromaticity coordinates line.
In a kind of specific embodiment, the first light forms the first gamut regions of triangle in chromaticity coordinates figure；By The vertex that first primary lights of one light are formed by the first gamut regions is the first primary coordinate, by the second primary lights of the first light The vertex for being formed by the first gamut regions is the second primary coordinate, is formed by the first colour gamut by the third primary lights of the first light The vertex in region is third primary coordinate；The line of first primary coordinate and third primary coordinate is the first primary colours side；First mends The chromaticity coordinates of the chromaticity coordinates of light, the chromaticity coordinates of the first primary lights in the first light and the third primary lights in the first light is repaid in color The third gamut regions of triangle are surrounded in coordinate diagram；The line of the chromaticity coordinates of first primary coordinate and the first compensation light is second Line；For the chromaticity coordinates of the pixel of all or part of present frame projected images in third gamut regions, third primary coordinate with The extended line of the line of these chromaticity coordinates intersects with the second line, the point that takes the first primary coordinate of distance farthest in intersection point (or It is the point for taking the chromaticity coordinates of the light combination of the first primary lights of the compensation light of distance first and the first light nearest), it adjusts main light source and shines The ratio of intensity and the first compensatory light luminous intensity, so that the light combination of the first compensation light and the first primary lights in the first light Chromaticity coordinates is fallen at the position of the farthest point.
First compensation light is remoter from the first primary coordinate with the chromaticity coordinates of the light combination of the first primary lights in the first light, then and the The brightness ratio that one compensatory light is opened is bigger, otherwise the brightness ratio that the first compensatory light is opened is smaller.
In a kind of specific embodiment, the first light forms the first gamut regions of triangle in chromaticity coordinates figure；By The vertex that first primary lights of one light are formed by the first gamut regions is the first primary coordinate, by the second primary lights of the first light The vertex for being formed by the first gamut regions is the second primary coordinate, is formed by the first colour gamut by the third primary lights of the first light The vertex in region is third primary coordinate；The line of first primary coordinate and third primary coordinate is the first primary colours side；First mends Repaying light and connecting the line of third primary coordinate with the chromaticity coordinates of the light combination of the first primary lights in the first light is the 5th line；Third base Chromaticity coordinates is connected with the chromaticity coordinates of the pixel of all or part of present frame projected images in third gamut regions, thus obtain to A few line, at least one line and the first primary colours side constitute at least one angle；In at least one angle, angle is taken The maximum angle of angle value adjusts the ratio of main light source luminous intensity and compensatory light luminous intensity, so that the 5th line and the first base The angle that color side is constituted is the maximum angle of the angle value.
The value of 5th line and the angle that the first primary colours side is constituted is bigger, then the brightness ratio that the first compensatory light is opened is got over Greatly, otherwise the brightness ratio of the first compensatory light unlatching is smaller.
Light emitting device emits the first primary lights, the second primary lights and third primary lights, control compensation in a manner of light sequence Light source is opened and emits the mode of compensation light are as follows: during the primary lights that light emitting device transmitting is compensated, control compensatory light hair Corresponding compensation light is penetrated, between light emitting device emits other photophases, control compensatory light does not emit corresponding compensation light.Specifically Ground, in the case where the first primary lights are by compensation light, during light emitting device emits the first primary lights, control the first compensation light The first compensation of source transmitting light (then controls the second compensatory light if there is the second compensatory light to close) simultaneously, sends out in light emitting device During penetrating the second primary lights and third primary lights, the first compensatory light of control is closed.It is by the feelings of compensation light in the second primary lights Under condition, during light emitting device emits the second primary lights, the second compensatory light of control transmitting the second compensation light is sent out in light emitting device During penetrating the first primary lights and third primary lights, the second compensatory light of control is closed.It is in the first primary lights and the second primary lights In the case where by compensation light, during light emitting device emits the first primary lights, the first compensatory light of control transmitting the first compensation light, And the second compensatory light of control is closed；During light emitting device emits the second primary lights, the second compensatory light of control transmitting second Light is compensated, and controls the first compensatory light and closes；Light emitting device emit third primary lights during, control the first compensatory light and Second compensatory light is closed.
It controls the main light source to open, and controls compensatory light and do not shine further include: adjust the three primary colours light in the first light Ratio so that the first light reaches preset brightness and/or white balance.Control main light source and compensatory light are opened further include: The ratio of the three primary colours light in the second light is adjusted, so that the second light reaches preset brightness and/or white balance.
According to the second aspect of the invention, a kind of light emitting device is provided, comprising: main light source, for emitting exciting light；Compensation Light source, for emitting compensation light；Color light generating device includes the first of three primary colours light for generating under the irradiation of exciting light Light, the first light form the first gamut regions in chromaticity coordinates figure.
Light emitting device is emitted the second light comprising three primary colours light when main light source and compensatory light are opened, and compensates light and the At least one of one light primary colours actinic light forms one of the second light primary lights, the second light and forms second in chromaticity coordinates figure Gamut regions；
Light emitting device further includes controller, is connect respectively with main light source and compensatory light, will be thrown for obtaining Whether the chromaticity coordinates of all pixels of the present frame projected image of shadow judges the chromaticity coordinates of all pixels all in the first colour gamut area Domain.If the chromaticity coordinates of all pixels is completely in the first gamut regions, main light source unlatching is controlled, and control compensatory light and do not send out Light；Chromaticity coordinates is located at the pixel except the first gamut regions if it exists, then controls main light source and compensatory light is opened, make to own The chromaticity coordinates of pixel is in the second gamut regions.
There are chromaticity coordinates to be located at the pixel except the first gamut regions for controller judgement, then controls main light source and compensatory light Open, specifically include: controller adjusts the ratio of main light source luminous intensity and compensatory light luminous intensity, makes all pixels Chromaticity coordinates is in the second gamut regions.
Controller adjusts the ratio of main light source luminous intensity and compensatory light luminous intensity, keeps the chromaticity coordinates of all pixels equal Specifically include in the second gamut regions: controller adjusts the ratio of main light source luminous intensity and compensatory light luminous intensity, makes The chromaticity coordinates of all pixels is in the second gamut regions, and the chromaticity coordinates of at least one pixel is in the second gamut regions On sideline.
Compensatory light includes the first compensatory light and/or the second compensatory light；First compensatory light is mended for emitting first Light is repaid, the second compensatory light is for emitting the second compensation light；
It includes: that controller according to chromaticity coordinates is located at the first gamut regions that controller control main light source and compensatory light, which are opened, Except pixel the first compensation light of distributed controll compensatory light transmitting and/or the second compensation light, the first compensation light and the first light In the first primary colours actinic light formed the second light in the first primary lights, second compensation light and the second primary colours in the first light it is photosynthetic Light forms the second primary lights in the second light.
When main light source and compensatory light are opened, the color light generating device outgoing of light emitting device includes three primary colours light Second light, i.e. color light generating device can generate the comprising three primary colours light after the exciting light irradiation for receiving main light source transmitting The compensation light of one light, compensatory light transmitting can be transmitted by color light generating device, therefore, be emitted from color light generating device Second light is made of the first light and compensation light, and the second light also includes three primary colours light, and compensates at least one of light and the first light Primary colours actinic light forms one of the second light primary lights, the second light and forms the second gamut regions in chromaticity coordinates figure.
Specifically, in the case where the first primary lights are by compensation light, the first primary lights are emitted in color light generating device Period, the first compensatory light of control the first compensation of transmitting light (then control the second compensation light if there is the second compensatory light simultaneously Source is closed), during color light generating device is emitted the second primary lights and third primary lights, the first compensatory light of control is closed. In the case where the second primary lights are by compensation light, during color light generating device is emitted the second primary lights, control second is mended Repay light source transmitting the second compensation light, during color light generating device is emitted the first primary lights and third primary lights, control second Compensatory light is closed.In the case where the first primary lights and the second primary lights are by compensation light, it is emitted in color light generating device During first primary lights, the first compensatory light of control transmitting the first compensation light, and control the second compensatory light and close；In color of light During generation device is emitted the second primary lights, the second compensatory light of control transmitting the second compensation light, and control the first compensatory light It closes；During color light generating device is emitted third primary lights, controls the first compensatory light and the second compensatory light is closed.
According to the third aspect of the invention we, a kind of projection device, including any one of the above light emitting device are provided.
The beneficial effects of the present invention are: difference of the present invention according to each frame image, by analyzing a certain frame image, current The first compensatory light is just opened in the case where being located at third gamut regions in the chromaticity coordinates part of all pixels of frame image, and in institute Have the chromaticity coordinates of pixel all in the first gamut regions in the case where be not turned on the first compensatory light, to reach energy-efficient effect Fruit.
The invention also includes in the embodiment of the second compensatory light, by analyzing a certain frame image, in present frame figure The second compensatory light is just opened in the case where being located at the 4th gamut regions in the chromaticity coordinates part of all pixels of picture, and in all pictures Element chromaticity coordinates all in the first gamut regions in the case where be not turned on the second compensatory light, embody the present invention more significantly The advantage of energy saving.
Detailed description of the invention
Fig. 1 be the prior art projection device using before compensatory light with colour gamut result schematic diagram later；
Fig. 2 be the prior art projection device using before compensatory light with gamut range contrast schematic diagram later；
Fig. 3 is the structural schematic diagram of the projection device of embodiment one；
Fig. 4 is the structural schematic diagram of the Wavelength converter of embodiment one；
Fig. 5 is the schematic illustration of the light emitting device transmitting compensation light of embodiment one；
Fig. 6 be embodiment one projection device using before compensatory light with gamut range comparison diagram later；
Fig. 7 is the light-source system of the light emitting device of embodiment one；
Fig. 8 is that the light emitting device of embodiment one judges whether chromaticity coordinates is located at the schematic illustration of third gamut regions；
Fig. 9 is the schematic illustration of the light emitting device transmitting compensation light of embodiment two；
Figure 10 is the schematic illustration of the light emitting device transmitting compensation light of embodiment three；
Figure 11 is the schematic illustration of the light emitting device transmitting compensation light of example IV；
Figure 12 is the structural schematic diagram of the Wavelength converter of example IV；
Figure 13 is the schematic illustration of the light emitting device transmitting compensation light of embodiment five；
Figure 14 is the light-source system of the light emitting device of embodiment five；
Figure 15 is the schematic illustration of which kind of compensation light of the light emitting device judgement transmitting of embodiment five；
Figure 16 is a kind of structural schematic diagram of Wavelength converter of the light emitting device of embodiment six；
Figure 17 is a kind of light-source system of the light emitting device of embodiment six；
Figure 18 is the structural schematic diagram of another Wavelength converter of the light emitting device of embodiment six.
Specific embodiment
Below by specific embodiment combination attached drawing, invention is further described in detail.
Embodiment one:
It is illustrated in figure 3 the structural schematic diagram of the projection device of the present embodiment, projection device includes main light source 405, light splitting Optical filter 406, colour wheel 408, driving device 409, shaping lens 410, prism apparatus 411, spatial light modulator (Spatial Light Modulators, SLM) 412, exit lens 413, controller 403 and the first compensatory light 404, reflecting mirror 407. Wherein, main light source 405, light splitting optical filter 406, the first compensatory light 404, reflecting mirror 407, colour wheel 408, driving device 409, control Device 403 processed collectively forms the light emitting device of projection device.
The combination of main light source 405, light splitting optical filter 406, colour wheel 408, driving device 409, shaping lens 410 is for generating The color sequence of light of periodic timing, and the optical path by the color sequence of light along design projects outward, by shaping lens 410 and prism After device 411, spatial light modulator 412 is projected.First compensatory light 404 can be red laser light source, and what is emitted is red Color laser is compensation light.
Driving device 409 (such as can be motor) driving colour wheel 408 rotation is to realize colour wheel 408 relative to being irradiated to it The cycle movement of the exciting light on surface.In other embodiments, it can be replaced with the color light generating device of other forms Colour wheel 408 drives color light generating device to realize the cycle movement relative to exciting light by driving device 409, such as Reciprocating vibration or swing.
Main light source 405 issue exciting light can excitation wavelength transition material (such as fluorescent powder) issue short wavelength be excited Light, main light source 405 can for example use blue-ray LED, ultraviolet LED or its array or blue light LD, ultraviolet LD or its array.Having Embodiment in, main light source 405 can also emit white light.Main light source 405 generates blue light in the present embodiment.
Colour wheel 408 can be the shapes such as discoid (such as annular or round) or rectangle.It is illustrated in figure 4 the present embodiment The structural schematic diagram of discoid colour wheel 408, colour wheel 408 include red light color section region 001, green light color section region 002 and blue light color Section region 003, red light color section region 001, green light color section region 002 and blue light color section region 003 are according to the sequence of setting along color The circumferential direction successively end to end arrangement of wheel 408.When projection device is in running order, the colour wheel that is fixed in shaft 408 are driven by driving device 409 and are rotated around the shaft, since colour wheel 408 is arranged in towards on the path of excitation light propagation, thus So that the spot tracks that exciting light projects on colour wheel 408 form a circular path.The exciting light that main light source 405 issues is through dividing It is incident upon after light optical filter 406 on colour wheel 408 and forms hot spot, the optical wavelength conversion material of hot spot region converts exciting light For stimulated light corresponding with optical wavelength conversion material, since facula position is relatively fixed with shaft, when shaft drives colour wheel 408 When rotation, multiple positions for passing sequentially through hot spot irradiation with the color section region of certain angular distribution around the shaft, each color section region Optical wavelength conversion material exciting light is converted into corresponding stimulated light, the color of the stimulated light composition periodic timing of various colors Light sequence is projected from colour wheel 408, and the present embodiment is specifically red, green, blue sequence.
Shaping lens 410 are arranged in the optical path of stimulated light outgoing, for receives by colour wheel 408 be emitted including stimulated light Color sequence of light, beam shaping is carried out to it, by prism apparatus 411 carry out optical path direction conversion process after, by coloured light sequence Column project in spatial light modulator 412.Together with colour wheel 408 can integrate with shaping lens 410, i.e., colour wheel 408 go out Shaping lens 410 are set in smooth surface to realize that adjustment includes the function of the shooting angle of the color sequence of light of stimulated light.
Spatial light modulator 412 is used to receive the stimulated light of color light generating device transmitting, according to received image signal pair Stimulated light is modulated and exit image light.In the present embodiment, spatial light modulator 412 be digital micromirror elements (DMD, Digital Mirror Device, Digital Micromirror Device).
Main control and processing apparatus of the controller 403 as projection device, for carrying out processing to data and to each portion Part is controlled, specifically, the cycle movement frequency of driving device is determined according to the frame per second of display image, according to motion frequency Control driving device does cycle movement etc..
Exit lens 413 are used to image light being projected to projection lens, and then image light is projected screen by projection lens On to form image.Or exit lens 413 are set up directly among projection lens, for by image light project on screen with Form image.
The control principle of the part of the light emitting device of the projection device of the present embodiment is discussed in detail below in conjunction with Fig. 5 and Fig. 6.
As shown in figure 5, light emitting device includes main light source 405, the first compensatory light 404, light splitting optical filter 406, reflecting mirror 407, colour wheel 408.Main light source 405, the first compensatory light 404, control of the colour wheel 408 all by controller 403.
In the case where opening main light source 405 and close the first compensatory light 404, colour wheel 408 absorbs main light source 405 and emits Exciting light after generate RGB light sequence the first light, i.e. the first light be light emitting device generate red primaries light 101, green The light sequence of primary lights 102, blue primary color light 103.As shown in fig. 6, the triangle that these three primary lights are formed in chromaticity coordinates figure The gamut regions of shape are the first gamut regions RGB, are the first base by the vertex that red primaries light is formed by the first gamut regions Chromaticity coordinates R, the vertex that the first gamut regions are formed by by green primary light is the second primary coordinate G, by blue primary color light institute The vertex of the first gamut regions formed is third primary coordinate B.
The line of first primary coordinate R and third primary coordinate B is the first primary colours side RB, the second primary coordinate G and third The line of primary coordinate B is the second primary colours side GB.
In the case where opening main light source 405 and the first compensatory light 404 at the same time, the first compensatory light 404 transmitting first The reflex after light 200 by reflecting mirror 407 and light splitting optical filter 406 is compensated, then from colour wheel 408 transmits away (colour wheel 408 The first compensation light 200 can be transmitted), the light combination of the first compensation light 200 and the first light is the second light, and the second light is in chromaticity coordinates figure The gamut regions of the triangle of formation are the second gamut regions R1GB, the second gamut regions R1GB is greater than the first gamut regions RGB. In the present embodiment, compensation light 200 is red light, is compensated for the red primaries light 101 to the first light.Certainly, this field Technical staff is as needed, it is also an option that the light of green light, blue light and other colors is as compensation light.
Second gamut regions R1GB is a controllable dynamic area, due to the second gamut regions R1GB is the first compensation light 200 and first the light combination of light be formed by, and the beam intensity ratio regular meeting influence gamut regions of the first compensation light 200 and the first light is big It is small, therefore, when the luminous intensity of the luminous intensity of the first compensatory light 404 and/or main light source 405 changes, then it can make First compensation light 200 and the light intensity ratio of the first light change, then the second gamut regions R1The size of GB can also change therewith Become.
The maximum gamut regions R for enabling the second light that can be formed in chromaticity coordinates figure1' BG greatly out the first gamut regions RGB Part be third extreme value gamut regions R1'BR.Specifically, when 405 luminous intensity of main light source and the first compensatory light 404 shine (when the light intensity ratio of the first compensation light 200 and the first light is some value or first compensates when the ratio of light intensity is some value When the light intensity ratio of the first primary lights in light 200 and the first light is some value), the available area of the second light maximum one Gamut regions, and exactly this maximum colour gamut area that when controller 403 judges the chromaticity coordinates of all pixels is based on Domain, namely it is based on third extreme value gamut regions R1'BR.Third extreme value gamut regions R1' BR and/or region R1' BG is pre- There are in controller 403, specifically, third extreme value gamut regions R is prestored in controller 4031' BR and/or region R1' BG institute All chromaticity coordinates covered, are compared by the chromaticity coordinates for prestoring the chromaticity coordinates of present frame projected image with these Judge that whether there is or not in third extreme value gamut regions R in each chromaticity coordinates of present frame projected image1' BR chromaticity coordinates.
The step of light-emitting control method described in detail below.
Controller 403 obtains the chromaticity coordinates of all pixels for the present frame projected image that will be projected, and judgement is all Whether the chromaticity coordinates of pixel is all in the first gamut regions RGB.Each pixel includes R, G, B value, and three values determine this The chromaticity coordinates position of pixel on a chromaticity diagram.
If the chromaticity coordinates of all pixels is completely in the first gamut regions, controlling the unlatching of main light source 405 makes light emitting device Transmitting includes the first light of three primary colours light, and controls the first compensatory light 404 and close.
If the chromaticity coordinates of all pixels is partially in third extreme value gamut regions R1' BR, then controlling the unlatching of main light source 405 makes Light emitting device emits the first light；Meanwhile controlling the unlatching of the first compensatory light 404 makes light emitting device transmitting first compensate light 200, the One compensation light 200 and the first light collectively form the second light comprising three primary colours light, and the second light of light emitting device transmitting forms second Gamut regions R1GB.Shown in Fig. 5, what is issued at colour wheel 408 is red primaries light 101, green primary light 102, blue primary color light 103 light sequence, and the first compensation light 200 directly transmits away from colour wheel 408, by the effect of controller 403, in colour wheel During 408 generate the red primaries light 101 of the first light, controller 403 controls the first compensatory light 404 and opens to transmitting first Compensate light 200.And during colour wheel 408 generates the green primary light 102 and blue primary color light 103 of the first light, the first compensation light Source 404 does not shine, and can utmostly save electric energy in this way.For a better understanding, being illustrated in figure 7 shining for light emitting device Timing diagram, exciting light 100 generate after colour wheel 408 red primaries light 101, green primary light 102, blue primary color light 103 Light sequence, during colour wheel 408 generates the red primaries light 101 of the first light, controller 403 controls the first compensatory light 404 and opens It opens to transmitting the first compensation light 200, and then after ensure that the first compensation light 200 transmits away from colour wheel 408, it can be with the The red primaries light 101 of one light keeps synchronizing, and the red primaries light 101 of the first compensation light 200 and the first light is constituted together at this time First primary lights of the second light.It may be noted that Fig. 7 reflection is to need while opening main light source 405 and the first compensatory light The case where, if controller 403 judges that the chromaticity coordinates of all pixels is all located at the first gamut regions, do not need unlatching first Compensatory light 404.Any one primary colours in three primary colours light that the chromaticity coordinates and the first light of red primary light in second light include The chromaticity coordinates of light is different.Due to the primary lights (i.e. red primaries light 101) to be compensated in the first compensation light and the first light Chromaticity coordinates is different, thus the primary colours to be supplemented in the chromaticity coordinates and the first light of the primary lights in the second light that the two light combination is formed The chromaticity coordinates of light is different.
In other embodiment of the invention, for generating the first color section region of red primaries light 101 on colour wheel 408 It is provided with sensing device on 001, when sensing device, which detects on the first color section region 001, the irradiation of exciting light 100, generates sense Induction signal is simultaneously sent to controller 403, and controller 403 opens the first compensatory light 404 according to inductive signal.Pass through this side Formula can also reach and generate the effect of the transmitting of the first compensatory light of 101 period of red primaries light 404 first compensation light 200 in colour wheel 408 Fruit.
During main light source 405 and the first compensatory light 404 are opened simultaneously, controller 403 controls the hair of main light source 405 The luminous intensity of luminous intensity and the first compensatory light 404, so that the second light reaches preset white balance and/or brightness value.
In addition, controller 403 adjusts main light source during main light source 405 and the first compensatory light 404 are opened simultaneously The ratio of 404 luminous intensity of 405 luminous intensities and the first compensatory light, so that the second gamut regions R1GB meets following effect: In third extreme value gamut regions R1' in pixel in BR, the chromaticity coordinates of at least one pixel is in the first sideline BR1On.Such as Shown in Fig. 6, by the adjusting of controller 403, the light combination of the first compensation light 200 and the first light forms the second gamut regions R1GB, this second gamut regions R1The chromaticity coordinates that GB just makes those not fall within the pixel in the first gamut regions RGB is complete Portion is located at third gamut regions R1Among BR, and chromaticity coordinates (such as the A of at least one pixel4) it is located at the first sideline BR1On, And chromaticity coordinates A3Then ensphered third gamut regions R1The inside of BR.Herein, it will be understood by those of skill in the art that A3And A4 The chromaticity coordinates for respectively representing two kinds of pixel, can just be comprising all of current frame image it is an object of the invention to be formed Second gamut regions R of pixel1GB, ideally this second gamut regions R1GB needs to reach minimum area, therefore color is sat Mark A4Represent ideally those be located at the second gamut regions R1Sideline (i.e. the first sideline BR of GB1) on chromaticity coordinates, And chromaticity coordinates A3Represent ideally those can not be seated the first sideline BR1On chromaticity coordinates.
Referring to Fig. 6, definition is by the first compensation light to the compensating action of the first primary lights in the first light and in the second colour gamut It is the first coordinate R that vertex is formed by region1；The extended line of the line of second primary coordinate G and the first primary coordinate R is the Two wires (the R R i.e. in figure1').So that the second gamut regions R1The implementation that GB meets said effect is as follows: to third extreme value Gamut regions R1' all or part of present frame projected images in BR pixel chromaticity coordinates (with A3And A4For), third primary colours Coordinate B intersects (such as third primary coordinate B and A with the extended line of the line of these chromaticity coordinates and the second line4Line extension Line A4R1With RR1Intersection, intersection point R1), the point that takes the first primary coordinate of distance R farthest in intersection point (or take apart from chromaticity coordinates R1' nearest point) it is the first coordinate (in Fig. 6, by A4Generated intersection point needs are found.And connect B and A3And extend, Its extended line and RR1The first primary coordinate of intersection point distance R it is closer, therefore it is undesirable).Due to the range of the second gamut regions Need just decide by some solution, the first coordinate namely it needs to be determined that, the design of this implementation is The smallest second gamut regions of area are determined by the method for intersection point.Such as B and A3And B and A4Line, they connect The extended line of line all can be with RR1' intersection, it is apparent that B and A from Fig. 64The extended line and RR of line1' intersection point R1 It is farthest from R, to illustrate in the point (point within all third gamut regions in other words) except the first all gamut regions In, by point A4Falling on the sideline of the second gamut regions can make the area of the second gamut regions minimum, while ensure that second Gamut regions can cover the chromaticity coordinates of all pixels of all present frame projected images.
In other embodiment of the invention, third primary coordinate B and the first coordinate R is defined1Line be the first side Line BR1；The line of third primary coordinate B and the first primary coordinate R are the first primary colours side BR；First primary colours side BR and the first sideline B R1Constitute the first angle RBR1.So that the implementation that the second gamut regions are met the requirements are as follows: third primary coordinate B and third Extreme value gamut regions R1' chromaticity coordinates of pixel of all present frame projected images in BR is connected, to obtain at least one company Line (illustratively gives line BA in Fig. 63With line BA4), at least one line and the first primary colours side constitute at least one Angle (illustratively gives angle RBA in Fig. 63With angle RBA4)；(the RBA at least one angle3、RBA4), take angle The maximum angle of angle value (i.e. angle RBA4) it is the first angle, so that it is determined that the second gamut regions R out1The range of GB and the first seat Mark R1Position.Be due to the second gamut regions it needs to be determined that, the first coordinate namely it needs to be determined that, this implementation Design be to determine the smallest second gamut regions of area by the method for angle.Such as angle RBA3And angle RBA4, due to angle RBA4Than angle RBA3Greatly, illustrate point (all thirds in other words except the first all gamut regions Point within gamut regions) in, by point A4The area of the second gamut regions can be made most by falling on the sideline of the second gamut regions It is small, while ensure that the second gamut regions can include the chromaticity coordinates of all pixels of all present frame projected images.
It will be appreciated by those skilled in the art that present frame projected image described in the present invention all pixels (and they Chromaticity coordinates), individual abnormal pixels (and its chromaticity coordinates) should be excluded, the color of individual abnormal pixels is sat Mark is likely to be at the position very remote from the first gamut regions, therefore without the concern for such pixel.
In other embodiment of the invention, controller 403 adjusts 405 luminous intensity of main light source and the first compensatory light The ratio of 404 luminous intensities, so that the second gamut regions R1GB meets following effect: being in third extreme value gamut regions R1' in BR Pixel in, the chromaticity coordinates of at least one pixel and the first sideline BR1With preset distance.When preset distance it is sufficiently small so that When can consider value is zero, then it is equal to above-mentioned that " chromaticity coordinates of at least one pixel is in the first sideline BR1On effect Fruit.
For the concrete mode of " controller 403 judges the chromaticity coordinates of all pixels ", the present embodiment is first Gamut regions RGB and third extreme value gamut regions R1' range of BR (can also prestore maximum second gamut regions) is pre-stored in In controller 403, in this way, controller 403 can directly judge that the chromaticity coordinates of all pixels is all in the first gamut regions RGB or some be in third extreme value gamut regions R1'BR.And in other embodiment of the present invention, controller 403 In can not prestore third extreme value gamut regions R1' BR range, as shown in figure 8, enable the extended line of GR, the first primary colours side RB with And customized sideline BH forms a region RBH, the range of RBH is than third extreme value gamut regions R1' BR is greatly (certainly, It can be than third extreme value gamut regions R1' BR range it is small), as long as controller 403 judges the chromaticity coordinates part of all pixels In RBH, then it is assumed that some in the chromaticity coordinates of all pixels is in third extreme value gamut regions R1' in BR.This is because In practice, when range of gamut regions that light can be formed, is limited, if there is chromaticity coordinates is in RBH, then for such color Coordinate can only use third extreme value gamut regions R1' BR covers them, also it can think there is one in the chromaticity coordinates of all pixels It is partially in third extreme value gamut regions R1' in BR.
Embodiment two:
As shown in figure 9, the present embodiment provides a kind of light emitting device of projection device, including main light source 405, first compensates light Source 404, light splitting optical filter 406, reflecting mirror 407, colour wheel 408.Main light source 405, the first compensatory light 404, colour wheel 408 all by The control of controller 403.Colour wheel 408 absorbs exciting light 100 and generates by red primaries light 101, green primary light 102 and blue 103 3 kinds of primary lights of primary lights are formed by light sequence, i.e. the first light.
The present embodiment and the distinctive points of embodiment one are that the first compensatory light 404 generated is compensating excitation light 201, 408 absorption compensation exciting light 201 of colour wheel is to generate first compensation light 200 (the first compensation light 200 and first in this case The three primary colours light of light is all fluorescence).The present embodiment others technical characteristic is the same as example 1, and so it will not be repeated.
Embodiment three:
As shown in Figure 10, the present embodiment provides a kind of light emitting devices of projection device, including main light source 405, first to compensate Light source 404, light splitting optical filter 406, reflecting mirror 407, colour wheel 408.Main light source 405, the first compensatory light 404, colour wheel 408 all by To the control of controller 403.Colour wheel 408 absorbs exciting light 100 and generates by red primaries light 101, green primary light 102 and indigo plant 103 3 kinds of primary lights of color base coloured light are formed by light sequence.
The present embodiment and the distinctive points of embodiment one are that setting is divided optical filter in the optical path after colour wheel 408 4060 and diffusion sheet 4070,4070 one side of diffusion sheet carries out instead the first compensation light 200 that the first compensatory light 404 generates It penetrates, on the other hand also acts the effect of eliminating coherence.The present embodiment first compensation light 200 require no colour wheel 408 but Thereafter converge with light sequence.The present embodiment others technical characteristic is the same as example 1, and so it will not be repeated.
Example IV:
As shown in figure 11, the present embodiment provides a kind of light emitting devices of projection device, including main light source 405, first to compensate Light source 404, light splitting optical filter 406, reflecting mirror 407, colour wheel 408.Main light source 405, the first compensatory light 404, colour wheel 408 all by To the control of controller 403.Colour wheel 408 absorbs exciting light 100 and generates by red primaries light 101, green primary light 102 and indigo plant 103 3 kinds of primary lights of color base coloured light are formed by light combination.
The present embodiment and the distinctive points of embodiment one are that colour wheel 408 is annular colour wheel, as shown in figure 12, including feux rouges Color section 121, green light color section 122 and blue light color section 123, exciting light 100 are irradiated in corresponding color section, then colour wheel 403, which absorbs, swashs It shines and 100 and generates corresponding primary lights.For example, colour wheel generates red primaries when exciting light 100 is irradiated to red light color section 121 Light 101.In the present embodiment, exciting light 100 is irradiated to three color sections simultaneously.
Colour wheel 408 can through first compensation light 200, thus, first compensation light 200 and light sequence be formed by light combination can Form the first gamut regions.The present embodiment others technical characteristic is the same as example 1, and so it will not be repeated.
Embodiment five:
As shown in figure 13, the present embodiment provides a kind of light emitting devices of projection device, including main light source 405, first to compensate Light source 404, light splitting optical filter 406, the first reflecting mirror 407, colour wheel 408.It further include the second compensatory light 504, the second reflecting mirror 507.Main light source 405, the first compensatory light 404, the second compensatory light 504, control of the colour wheel 408 all by controller 403.Color Wheel 408 absorbs exciting light 100 and generates by 103 3 kinds of red primaries light 101, green primary light 102 and blue primary color light primary colours Light is formed by the first light.First compensation light 200 of the first compensatory light 404 transmitting is feux rouges, the transmitting of the second compensatory light Second compensation light 300 is green light.
Similar with the first compensation related content of light in embodiment one, the light combination of the second compensation light and the first light is in chromaticity coordinates The gamut regions of the triangle formed on figure are the 4th extended area, and the 4th extended area is greater than the first gamut regions.
It is similar with embodiment one for the mode of control the second compensation light and the first actinic light, adjust main light source strong light The ratio of degree and the second compensatory light luminous intensity, so that the second extended area meets: the pixel in the 4th gamut regions In, the chromaticity coordinates of at least one pixel is on the sideline of the 4th gamut regions, or is had with the sideline of the 4th gamut regions There is preset distance, or there is preset distance with the second primary colours side.
The present embodiment and the distinctive points of embodiment one are have two compensatory lights i.e. the first compensatory light 404 and Two compensatory lights 504, when needing to compensate red primaries light 101, controller 406 controls the first compensatory light 404 and opens It opens；When needing to compensate green primary light 102, controller 406 controls the second compensatory light 504 and opens.Specifically, exist In the case that the chromaticity coordinates of all pixels is all located at the first gamut regions, main light source 405 is only opened；In the chromaticity coordinates of all pixels In the case that part is located at third gamut regions and is located at the 4th gamut regions without pixel, opens main light source 405 and first and mend Repay light source 404；It is located at the 4th gamut regions in the chromaticity coordinates part of all pixels and is located at third gamut regions without pixel In the case of, open main light source 405 and the second compensatory light 504；If existing pixel is located at third gamut regions, and has pixel to be located at 4th gamut regions then open main light source 405, the first compensatory light 404 and the second compensatory light 504.
The control mode of controller 406 is the same as example 1, and more considerations is only needed to mend green primary light The case where repaying, since technical characteristic is consistent, so it will not be repeated.
For a better understanding, being as shown in figure 14 the light-source system of light emitting device, exciting light 100 passes through colour wheel 408 The light sequence of red primaries light 101, green primary light 102, blue primary color light 103 is generated afterwards, and controller 403 controls entire hair The timing of electro-optical device.It may be noted that Figure 14 reflection is to need while opening main light source 405, the first compensatory light 404, second The case where compensatory light 504, if controller 403 judges that the chromaticity coordinates of all pixels is all located at the first gamut regions, no Need to open the first compensatory light 404 and the second compensatory light 504.During colour wheel 408 generates red primaries light 101, control Device 403 controls the first compensatory light 404 and opens to transmitting the first compensation light 200, generates green primary light 102 in colour wheel 408 Period, controller 403 control the second compensatory light 504 and open to transmitting the second compensation light 300；And then it ensure that the first compensation Light 200 goes out from colour wheel 408 project away after, can be synchronous with the holding of red primaries light 101, second compensates light 300 from colour wheel 408 It, can be synchronous with the holding of green primary light 102 after projecting away out.
Since light emitting device includes simultaneously main light source, the first compensatory light, the second compensatory light, then practical application will appear Several possible situations below: (1) light is needed not compensate for, then only opens main light source；(2) the first compensatory light and second is only needed The one of which of compensatory light then opens main light source and one of compensatory light, and adjusts the two luminous intensity ratio；(3) The first compensation light and the second compensation light are needed simultaneously, then open main light source, the first compensatory light and the second compensatory light, and adjust The luminous intensity ratio of three kinds of light is saved to reach the requirement for needing to meet.For example, main light source luminous intensity and the first compensation light The ratio of source luminous intensity needs to meet 2: 3, and the ratio of main light source luminous intensity and the second compensatory light luminous intensity needs full Foot 4: 5, then, final light intensity ratio is main light source luminescent intensity: the first compensatory light luminous intensity: the second compensatory light hair Luminous intensity=8: 12: 15.
In the present embodiment, the first compensation light is feux rouges, and the second compensation light is green light, thus there is judgement transmitting feux rouges and mends The problem of light or green light compensation light is repaid, as shown in figure 15, present frame projected image, which exists, to be located at other than the first gamut regions RGB Pixel, with pixel A4For illustrate, A4To the distance in RB be less than to while GB distance, i.e. A4Third colour gamut should be located at It in region, therefore may determine that, need to open feux rouges compensatory light.If being located at the side side GB when pixel, should open Green light compensates light.If while GB and while RB near have pixel, feux rouges compensatory light and green light compensatory light require out It opens.This judgment method can also apply in other embodiments of the invention.
Embodiment six:
The present embodiment is that used colour wheel is different from the distinctive points of embodiment one, as shown in figure 16, the present embodiment Colour wheel includes blue light color section 003, orange light color section 004, green light color section 002 and the first diffuser 005.
First compensatory light can for red laser or dark green laser (dominant wavelength in 510nm between 530nm, preferably For 520nm), exciting light is blue light, the main light source when colour wheel is moved to blue light color section 003, orange light color section 004, green light color section 002 It opens and the first compensatory light is closed；Red laser or dark green laser opening and master when colour wheel is moved to the first diffuser 005 Light source is closed, so that colour wheel issues the light that timing is green, blue, orange, red/dark green light.Wherein orange light and feux rouges timing are mixed into red Primary lights (the red primary image in the red primary light corresponding image signals, in this way, judging the color of each pixel in red primary image Coordinate decides whether to open red laser light source according to gamut regions belonging to the chromaticity coordinates of each pixel in a frame red primary image, Or the ratio of adjustment orange light and red laser, after determining orange light and the ratio of red laser, the enhancing orange light of equal proportion and red laser Intensity, red primary light can be made to reach preset brightness, after red primary light reaches preset brightness, according to preset white flat Weighing apparatus, changes the light intensity of the corresponding light source of other primary lights), it is green with dark green light sequential to be mixed into green primary light (green primary light is corresponding Green primary image in picture signal).
Figure 17 has reacted the timing diagram of light emitting device transmitting light, and colour wheel 408 generates green primary light after absorbing exciting light 400 102, the light sequence of blue primary color light 103, orange primary lights 104, red/dark green light 500, wherein generating red/dark green light 500 Period, since main light source is closed, therefore colour wheel 408 will not absorb exciting light and then will not generate primary lights.
The present embodiment others technical characteristic is the same as example 1, and so it will not be repeated.
In addition, it will be appreciated by those skilled in the art that two diffusers can be arranged on colour wheel for the present embodiment, As shown in figure 18, colour wheel further includes the first diffuser in addition to including blue light color section 003, orange light color section 004, green light color section 002 005 and second diffuser 006, the second diffuser 006, which is moved to, in colour wheel is also switched off main light source.The first diffusion is moved in colour wheel When section 005, the first compensatory light, that is, red laser light source is opened；When colour wheel is moved to the second diffuser 006, the second compensatory light I.e. dark green laser light source is opened, so that the timing of the light of colour wheel transmitting is blue, dark green, green, orange, feux rouges.Wherein orange and feux rouges Timing is mixed into red primary light, and green and dark green light sequential is mixed into green primary light.The specific light-emitting control method of light emitting device with Above-mentioned principle is consistent, and so it will not be repeated.
Light emitting device provided by the present invention and its control method, and using projection system made by the light emitting device System, controller by analyzing a certain frame image, all pixels chromaticity coordinates position not all in the first gamut regions In the case of just open compensatory light, and do not opened in the case where the position of the chromaticity coordinates of all pixels is all in the first gamut regions Compensatory light is opened, to reach energy-efficient effect.Further, so that not in the chromaticity coordinates of the first gamut regions BGO, until A rare chromaticity coordinates, which is in the sideline on the sideline of the second gamut regions or with the second gamut regions, has preset distance, from And energy conservation is realized to the full extent.
The above content is specific embodiment is combined, further detailed description of the invention, and it cannot be said that this hair Bright specific implementation is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, it is not taking off Under the premise of from present inventive concept, a number of simple deductions or replacements can also be made.

Claims (14)

1. a kind of light-emitting control method of light emitting device, the light emitting device include main light source, the light emitting device is opening institute Outgoing includes the first light of three primary colours light when stating main light source, and first light forms the first gamut regions in chromaticity coordinates figure；
The light emitting device further includes the compensatory light for emitting compensation light, and the light emitting device is in the main light source and described Outgoing includes the second light of three primary colours light, at least one of the compensation light and first light base when compensatory light is opened Coloured light light combination forms one of second light primary lights, at least a kind of primary colours in the three primary colours light that second light includes The chromaticity coordinates for any one primary lights in three primary colours light that the chromaticity coordinates of light includes from first light is different, and described second Light forms the second gamut regions in chromaticity coordinates figure；
It is characterized in that, which comprises
The chromaticity coordinates for obtaining all pixels for the present frame projected image that will be projected judges that the color of all pixels is sat Whether mark is all in first gamut regions；
If the chromaticity coordinates of all pixels is completely in first gamut regions, controls the main light source and open, and control The compensatory light is made not shine；
Chromaticity coordinates is located at the pixel except first gamut regions if it exists, then controls the main light source and the compensatory light It opens, the chromaticity coordinates of all pixels is made to be in second gamut regions.
2. the method as described in claim 1, which is characterized in that the chromaticity coordinates if it exists be located at first gamut regions it Outer pixel then controls the main light source and the compensatory light is opened and specifically included:
The ratio for adjusting the main light source luminous intensity and the compensatory light luminous intensity, makes the chromaticity coordinates of all pixels It is in second gamut regions.
3. method according to claim 2, which is characterized in that described to adjust the main light source luminous intensity and the compensation light The ratio of source luminous intensity makes the chromaticity coordinates of all pixels be in second gamut regions and specifically includes:
The ratio for adjusting the main light source luminous intensity and the compensatory light luminous intensity, makes the chromaticity coordinates of all pixels Second gamut regions are in, and the chromaticity coordinates of at least one pixel is on the sideline of second gamut regions.
4. method according to claim 2, which is characterized in that the control main light source and the compensatory light are opened Include:
The transmitting of compensatory light described in the distributed controll of pixel except being located at first gamut regions according to chromaticity coordinates first is mended Light and/or the second compensation light are repaid, the first primary colours actinic light in the first compensation light and first light forms described second The first primary lights in light, the second compensation light are formed in second light with the second primary colours actinic light in first light The second primary lights.
5. method as claimed in claim 4, which is characterized in that described to be located at except first gamut regions according to chromaticity coordinates Pixel distributed controll described in compensatory light transmitting first compensation light and/or second compensation light specifically include:
When there is the picture that is distributed in third gamut regions in the pixel that the chromaticity coordinates is located at except first gamut regions When plain, control compensatory light transmitting the first compensation light, the third gamut regions be the first compensation light chromaticity coordinates, What the chromaticity coordinates of the chromaticity coordinates of the first primary lights in first light and the third primary lights in first light was surrounded Gamut regions；
When there is the picture that is distributed in the 4th gamut regions in the pixel that the chromaticity coordinates is located at except first gamut regions When plain, control compensatory light transmitting the second compensation light, the 4th gamut regions be the second compensation light chromaticity coordinates, What the chromaticity coordinates of the chromaticity coordinates of the second primary lights in first light and the third primary lights in first light was surrounded Gamut regions.
6. method as claimed in claim 5, which is characterized in that described to adjust the main light source luminous intensity and the compensation light The ratio of source luminous intensity is in the chromaticity coordinates of all pixels in second gamut regions and specifically includes:
When pixel except the chromaticity coordinates is located at first gamut regions is distributed in third gamut regions, institute is adjusted The ratio for stating the luminous intensity of main light source luminous intensity and compensatory light transmitting the first compensation light, makes the first compensation light Chromaticity coordinates with the light combination of the first primary lights in first light is to mend in First Line and second-line intersection point with described first The chromaticity coordinates of light is repaid apart from nearest chromaticity coordinates, second gamut regions are in the first compensation light and first light The chromaticity coordinates of the light combination of first primary lights, the chromaticity coordinates of the second primary lights in first light and in first light The gamut regions that the chromaticity coordinates of three primary colours light is surrounded；
When pixel except the chromaticity coordinates is located at first gamut regions is distributed in the 4th gamut regions, institute is adjusted The ratio for stating the luminous intensity of main light source luminous intensity and compensatory light transmitting the second compensation light, makes the second compensation light Chromaticity coordinates with the light combination of the second primary lights in first light is to mend in the intersection point of third line and the 4th line with described second The chromaticity coordinates of light is repaid apart from nearest chromaticity coordinates, second gamut regions are in the second compensation light and first light The chromaticity coordinates of the light combination of second primary lights, the chromaticity coordinates of the first primary lights in first light and in first light The gamut regions that the chromaticity coordinates of three primary colours light is surrounded；
It is distributed in third gamut regions when existing in the pixel that the chromaticity coordinates is located at except first gamut regions Pixel, but exist be distributed in the 4th gamut regions pixel when, adjust the main light source luminous intensity and the compensatory light The ratio of the luminous intensity of transmitting the first compensation light, makes the conjunction of first the compensation light and the first primary lights in first light The chromaticity coordinates of light is to compensate the chromaticity coordinates of light in First Line and second-line intersection point with described first apart from nearest chromaticity coordinates, together When adjust the main light source luminous intensity and compensatory light transmitting the second compensation light luminous intensity ratio, make described the Two compensation light and first light in the second primary lights light combination chromaticity coordinates in the intersection point of third line and the 4th line with institute The chromaticity coordinates of the second compensation light is stated apart from nearest chromaticity coordinates, second gamut regions are the first compensation light and described the The conjunction of the chromaticity coordinates of the light combination of the first primary lights in one light, second the compensation light and the second primary lights in first light The gamut regions that the chromaticity coordinates of the chromaticity coordinates of light and the third primary lights in first light is surrounded；
Wherein the First Line is the chromaticity coordinates of the third primary lights in second light and the picture for being distributed in third gamut regions The extended line of the line of the chromaticity coordinates of element, second line be the chromaticity coordinates of the first compensation light and in first light the The line of the chromaticity coordinates of one primary lights, the third line are the chromaticity coordinates of the third primary lights in first light and are distributed in the The extended line of the line of the chromaticity coordinates of the pixel of four gamut regions, chromaticity coordinates and institute of the 4th line for the second compensation light State the line of the chromaticity coordinates of the second primary lights in the first light.
7. as the method according to claim 1 to 6, which is characterized in that the light emitting device is emitted in a manner of light sequence First primary lights, the second primary lights and third primary lights control the mode that the compensatory light is opened and emits compensation light are as follows: During the primary lights that the light emitting device transmitting is compensated, the corresponding compensation light of compensatory light transmitting is controlled, in the hair Between electro-optical device emits other photophases, controls the compensatory light and do not emit corresponding compensation light.
8. as the method according to claim 1 to 6, which is characterized in that the control main light source is opened, and is controlled The compensatory light does not shine further include: the ratio for adjusting the three primary colours light in first light, so that first light reaches Preset brightness and/or white balance.
9. as the method according to claim 1 to 6, which is characterized in that the control main light source and the compensation light It opens in source further include: the ratio for adjusting the three primary colours light in second light, so that second light reaches preset brightness And/or white balance.
10. a kind of light emitting device characterized by comprising
Main light source, for emitting exciting light；
Compensatory light, for emitting compensation light；
Color light generating device, under the irradiation of the exciting light generate include three primary colours light the first light, described first Light forms the first gamut regions in chromaticity coordinates figure；
The light emitting device is emitted the second light comprising three primary colours light, institute when the main light source and the compensatory light are opened It states compensation at least one of light and first light primary colours actinic light and forms one of second light primary lights, described the Two light form the second gamut regions in chromaticity coordinates figure；
Controller is connect with the main light source and the compensatory light respectively, for obtaining the present frame that will be projected Whether the chromaticity coordinates of all pixels of projected image judges the chromaticity coordinates of all pixels all in first colour gamut area Domain；
If the chromaticity coordinates of all pixels is completely in first gamut regions, controls the main light source and open, and control The compensatory light is made not shine；
Chromaticity coordinates is located at the pixel except first gamut regions if it exists, then controls the main light source and the compensatory light It opens, the chromaticity coordinates of all pixels is made to be in second gamut regions.
11. light emitting device as claimed in claim 10, which is characterized in that there are chromaticity coordinates positioned at described for the controller judgement Pixel except first gamut regions, then control the main light source and the compensatory light is opened, and specifically includes:
The controller adjusts the ratio of the main light source luminous intensity and the compensatory light luminous intensity, makes all pictures The chromaticity coordinates of element is in second gamut regions.
12. light emitting device as claimed in claim 11, which is characterized in that the controller adjusts the main light source luminous intensity With the ratio of the compensatory light luminous intensity, the chromaticity coordinates of all pixels is set to be in second gamut regions specific Include:
The controller adjusts the ratio of the main light source luminous intensity and the compensatory light luminous intensity, makes all pictures The chromaticity coordinates of element is in second gamut regions, and the chromaticity coordinates of at least one pixel is in second gamut regions Sideline on.
13. such as the described in any item light emitting devices of claim 10-12, which is characterized in that
The compensatory light includes the first compensatory light and/or the second compensatory light；First compensatory light is for emitting the One compensation light, second compensatory light is for emitting the second compensation light；
The controller controls the main light source and the compensatory light is opened and includes:
The controller first gamut regions are located at according to chromaticity coordinates except pixel distributed controll described in compensatory light The first compensation light of transmitting and/or the second compensation light, the first compensation light and the first primary colours actinic light shape in first light At the first primary lights in second light, the second primary colours actinic light in the second compensation light and first light forms institute State the second primary lights in the second light.
14. a kind of projection device, which is characterized in that including such as described in any item light emitting devices of claim 10-13.
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