CN108267918A - Projection light source drive control circuit - Google Patents

Projection light source drive control circuit Download PDF

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Publication number
CN108267918A
CN108267918A CN201810024325.1A CN201810024325A CN108267918A CN 108267918 A CN108267918 A CN 108267918A CN 201810024325 A CN201810024325 A CN 201810024325A CN 108267918 A CN108267918 A CN 108267918A
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output
light source
module
output unit
light
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CN201810024325.1A
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CN108267918B (en
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崔荣荣
李健锋
郭大勃
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Hisense Group Co Ltd
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Hisense Group Co Ltd
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/206—Control of light source other than position or intensity
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2033—LED or laser light sources
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2053—Intensity control of illuminating light

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Projection Apparatus (AREA)
  • Semiconductor Lasers (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The invention discloses a kind of projection light source drive control circuits.Projection light source drive control circuit provided in an embodiment of the present invention, control module is gated including light source, first driving logic module, second driving logic module, third drives logic module, primary lights output unit, control signal primary colours output control signal can be exported according to the primary colours of projection light source system, generation color of light lights clock signal, clock signal is lighted according to color of light, at least primary lights brightness regulated signal is exported into primary lights output unit by light source gating control module, so that at least one primary lights output unit exports corresponding color of light, realize the output control of a variety of projection light source different base colors brightness Regulate signals, projection light source brightness can be adjusted.

Description

Projection light source drive control circuit
The application is in a kind of on 08 29th, 2016 entitled " the projection light source drive control circuits " proposed The divisional application of state's application for a patent for invention 201610745274.2.
Technical field
The present invention relates to photoelectric field, more particularly to a kind of projection light source drive control circuit.
Background technology
With the development of science and technology, it needs to use the scene of laser projection product more and more, in order to obtain better projection Effect, the mode that people are driven laser light source drive control circuit in laser projection product control are increasingly paid close attention to.
Due to laser light source excitation purity height, many advantages, such as high directivity, and with high brightness, high colour gamut, gradually by quotient Family is applied in projection products, and when using two-color laser light source in laser projection product, which swashs to be red Radiant and blue laser light source, the red laser light source can export feux rouges under the control of double-colored light source driving circuit, blue Color laser light source can export green light, blue light with broken color wheel module under the double-colored light source driving circuit control, need according to base The sequential of coloured light realizes drive control to red laser and blue laser respectively.When laser projection product uses three color laser During light source, i.e., using red laser, blue laser and green laser, need to realize timing against three kinds of lasers Drive control.And also need to be further added by fluorescent species on the basis of traditional three primary colours sometimes, multiple bases are formed, are needed at this time Control device is added respectively in former two-color laser light source and three color laser light source control circuits respectively, to realize multiple bases Sequential export forms projection light source white light.
But during driving for double-colored or tri-color laser, need to be driven the control of circuit respectively, it is general Property is poor, and waste of resource, can also increase development cost.
Invention content
In order to solve problem of the prior art, an embodiment of the present invention provides a kind of projection light source drive control circuits, can For driving two-color laser light source or three color laser light sources, the output control of different base colors brightness Regulate signal is realized.
For achieving the above object, it is as follows using technical solution：
Light source gates control module, the first driving logic module, the second driving logic module, third driving logic module, primary colours Light output unit；
Primary lights output unit includes the first primary lights output unit, the second primary lights output unit, third primary colours light output list Member；
The output terminal of the input terminal connection projection light source system of light source gating control module, inputs primary lights brightness regulated signal, The output terminal and the first primary lights output unit of light source gating control module, the second primary lights output unit, third primary lights are defeated Go out unit to connect respectively,；
The input terminal of first driving logic module is connect with the output terminal of projection light source system, input primary colours output control signal, The input terminal of output terminal and light source the gating control module of first driving logic module, the input terminal of the second driving logic module and The input terminal of third driving logic module connects respectively,
The output terminal of second driving logic module and the input terminal and the second primary lights output unit point of third driving logic module It does not connect；
The input terminal of third driving logic module is connect with the output terminal of light source gating control module, third driving logic module Output terminal is connect with the first primary lights output unit,
First driving logic module, second driving logic module and third driving logic module based on primary colours output control letter Number, it generates corresponding color of light and lights clock signal,
Clock signal is at least lighted according to color of light by light source gating control module, the primary colours that projection light source system is exported are bright Degree Regulate signal is exported into primary lights output unit, so that at least one primary lights output unit exports corresponding color of light.
The advantageous effect that the technical solution that at least one embodiment of the present invention provides is brought is：The projection light source drive control Circuit by light source can be gated and controlled based on the primary colours output control signal primary colours output control signal that projection light source system exports Molding block, the first driving logic module gate at least one primary lights output unit from primary lights output unit.Meanwhile the throwing Shadow light source drive control circuit can be based on primary colours output control signal primary colours output control signal, pass through the first driving logic mould Block, the second driving logic module and third driving logic module generate corresponding color of light and light clock signal, according to color of light Clock signal is lighted, and the primary lights brightness regulated signal at least projection light source system being exported by light source gating control module exports Into primary lights output unit, so that at least one primary lights output unit exports corresponding color of light, so as to fulfill at least A kind of laser light source, such as the drive control of two-color laser light source or three color laser light sources, that is, provided in an embodiment of the present invention Projection light source drive control circuit can select access two-color laser light source or three color laser light source types, so as to more Kind laser light source realizes the output control of different base colors brightness Regulate signal, realizes the control of projection light source brightness.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings Attached drawing.
Fig. 1 is the structure diagram of the first projection light source drive control circuit provided in an embodiment of the present invention；
Fig. 2 is the structure diagram of second of projection light source drive control circuit provided in an embodiment of the present invention；
Fig. 3 is a kind of double-colored primary lights device and color of light output timing schematic diagram provided in an embodiment of the present invention；
Fig. 4 is the structure diagram of the 6th kind of projection light source drive control circuit provided in an embodiment of the present invention；
Fig. 5 is a kind of three color bases coloured light device and color of light output timing schematic diagram provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention Formula is described in further detail.
Fig. 1 is a kind of structure diagram of projection light source drive control circuit provided in an embodiment of the present invention, referring to Fig. 1, The projection light source drive control circuit includes light source gating control module 1, first and logic module 2, second is driven to drive logic mould Block 3, third driving logic module 4, red laser output unit 6, blue laser output unit 7, green laser output unit 8, Specifically, red, blue, green laser output unit 6,7,8 respectively include red laser output terminal R-C, blue laser output B-C and green laser output terminal G-C is held, each color laser output can be specifically the driving end of corresponding color laser.
Wherein, light source gating control module 1 input terminal, first driving logic module 2 input terminal respectively with projected light The output terminal OUT connections of source system, the output terminal and red laser output unit 6, blue laser of light source gating control module 1 are defeated Go out unit 7 and green laser output unit 8 connects respectively, with the multiple logical signals exported based on projection light source system, lead to It crosses light source gating control module 1, first and drives logic module 2 from red laser output unit 6,7 and of blue laser output unit At least one light source laser output unit, i.e. primary lights output unit, and at least one base are gated in green laser output unit 8 Coloured light output unit includes at least red laser output unit 6 and blue laser output unit 7.
Wherein, the output terminal of projection light source system exports multiple logical signals, and control signal and primary colours are exported including primary colours Brightness regulated signal.
The output terminal of first driving logic module 2 gates the input terminal of control module 1, the second driving logic module with light source The input terminal of 3 input terminal and third driving logic module 4 connects respectively, the input terminal of the second driving logic module 3 and projection The output terminal OUT connections of light-source system, the output terminal of the second driving logic module 3 and the input terminal of third driving logic module 4 It is connected respectively with green laser output unit 8；The input terminal of third driving logic module 4 is defeated with light source gating control module 1 Outlet connects, and the output terminal of third driving logic module 4 is connect with blue laser output unit 6, to be based on multiple logical signals, Specifically, logic module 3 and third is driven to drive logic module 4 through in logical signal by the first driving logic module 2, second Primary colours output control signal primary colours output control signal generate corresponding color of light and light clock signal, and color of light is lighted Clock signal exported at least one primary lights output unit, and gates control module 1, projection light source system by light source Output terminal OUT exports the primary lights brightness regulated signal in multiple logical signals at least one primary lights output unit, with Each primary lights output unit at least one primary lights output unit is made to export corresponding color of light.
As shown in Figure 1, the projection light source drive control circuit, which includes light source gating control module 1, first, drives logic mould Block 2, second drives logic module 3, third driving logic module 4 and further includes red laser output terminal R-C, blue laser Output terminal B-C and green laser output terminal G-C；And as Fig. 2 further includes primary lights sequential export module 5.Blue laser exports Unit includes primary lights sequential export module 5.Wherein, blue laser output unit further includes primary lights sequential export module, In, the input terminal of primary lights sequential export module 5 drives logic module 2 with the output terminal OUT of projection light source system, first respectively Output terminal, light source gating control module 1 output terminal connect respectively, for receiving the logic that projection light source system directly exports Signal and the logical signal exported by the first driving logic module 2, and selective export logical signal swashs to blue Light output unit.
Specifically, when the input terminal of light source gating control module 1, first drive the input terminal and primary lights of logic module 2 The input terminal of sequence output module 5 is connect respectively with the output terminal OUT of projection light source system, the output terminal letter of the projection light source system Number can include multiple primary colors brightness regulated signal and primary colours output control signal.
And the output terminal and red laser output terminal R-C, primary lights sequential export module 5 of light source gating control module 1 Input terminal and green laser output terminal G-C connect respectively, with the multiple logical signals exported based on projection light source system, pass through Light source gating control module 1, first drive logic module 2 and primary lights sequential export module 5 from red laser output terminal R-C, At least one primary colours light output end, and at least one primary colours are gated in blue laser output terminal B-C and green laser output terminal G-C Light output end includes at least blue laser output terminal B-C；
The output terminal of first driving logic module 2 gates input terminal, the primary lights sequential export module 5 of control module 1 with light source Input terminal, second driving logic module 3 input terminal and third driving logic module 4 input terminal connect respectively, second drive The input terminal of dynamic logic module 3 connect with the output terminal OUT of projection light source system, second drive the output terminal of logic module 3 and The input terminal and green laser output terminal G-C of third driving logic module 4 connect respectively, and third drives the input of logic module 4 The output terminal with light source gating control module 1 is held to connect, the third driving output terminal of logic module 4 and primary lights sequential export mould The output terminal of block 5 is connect respectively with blue laser output terminal B-C, and control is exported with the primary colours included based on multiple logical signals Signal drives logic module 3 and third that logic module 4 is driven to generate corresponding color by the first driving logic module 2, second The bright clock signal of luminous point, and by color of light light clock signal export at least one primary colours light output end and, and pass through Light source gating control module 1, projection light source system output terminal OUT by the primary lights brightness regulated signal in multiple logical signals In at least one primary colours light output end of output, so that each corresponding base of primary colours light output end at least one primary colours light output end Coloured light output unit exports corresponding color of light.
Due to the input terminal of light source gating control module 1, the first driving input terminal of logic module 2 and primary colours light sequential The input terminal of output module 5 is connect respectively with the output terminal OUT of projection light source system, and light source gates the output terminal of control module 1 It is connect respectively with red laser output terminal R-C, the input terminal of primary lights sequential export module 5 and green laser output terminal G-C.Cause This, is when the projection light source system inputs multiple logical signals by output terminal OUT to the projection light source driving circuit, the projection Light source drive control circuit can be based on multiple logical signal, and gating control module 1, first by light source drives logic module 2 and primary lights sequential export module 5 from red laser output terminal R-C, blue laser output terminal B-C and green laser output terminal G- At least one primary colours light output end is gated in C.
Again due to input terminal of the output terminal of the first driving logic module 2 with light source gating control module 1, primary colours light sequential The input terminal of the input terminal of output module 5, the input terminal of the second driving logic module 3 and third driving logic module 4 connects respectively It connects, the input terminal of the second driving logic module 3 is connect with the output terminal OUT of projection light source system, the second driving logic module 3 Output terminal is connect respectively with the input terminal and green laser output terminal G-C of third driving logic module 4, third driving logic module 4 input terminal is connect with the output terminal of light source gating control module 1, when third drives the output terminal and primary lights of logic module 4 The output terminal of sequence output module 5 is connect respectively with blue laser output terminal B-C.Therefore, which can With the primary colours output control signal included based on multiple logical signals, logic is driven by the first driving logic module 2, second Module 3 and third driving logic module 4 generate corresponding color of light and light clock signal, and it is defeated that color of light is lighted clock signal Go out at least one primary colours light output end.
Primary colours light output end specifically corresponds at least one primary lights output unit, therefore the projection light source driving circuit can With the feux rouges brightness regulated signal, green light brightness regulated signal, indigo plant for being included multiple logical signals based on foregoing circuit module Brightness Regulate signal, primary colours output control signal, corresponding color of light, tool are exported by least one primary lights output unit Body, light source gating control module, the first driving logic module is used for primary lights brightness regulated signal according to light source type, choosing Logical output is at least red laser output unit and blue laser output unit, and conditionity exports to green laser and exports list Member and, by first driving logic module, second driving logic module and third driving logic module by primary colours export control The color of signal primary colours output control signal generation processed accordingly is lighted clock signal and is exported to red, blue laser output unit, Or export and give red, green, blue three color laser output units, so as to fulfill at least one laser light source, such as two-color laser light Source or the drive control of three color laser light sources, that is to say, projection light source drive control circuit provided in an embodiment of the present invention passes through Multiple logical signals can select access two-color laser light source or three color laser light sources, so as to be applicable in a variety of laser light sources Drive control realizes the output control of a variety of projection light source different base colors brightness Regulate signals, to projection light source brightness energy It is enough to adjust.
It needs, primary lights brightness regulated signal can also include yellow light brightness regulated signal, wherein yellow light brightness Regulate signal is exported to blue laser output unit, by switching through between the Wavelength converter in blue laser excitation light source light path Change obtains yellow light, and clock signal is lighted to the color of yellow light and is obtained by the clock signal logical operation of feux rouges and green light.
It should be noted that it is effective when involved signal can be high level in embodiments of the present invention, it can also Effective during for low level, the embodiment of the present invention is not specifically limited this.When in embodiments of the present invention using signal as high level Effectively it is illustrated.
It should also be noted that, the primary lights output unit can be laser, for example, primary lights output unit can be Red laser, blue laser and green laser, naturally it is also possible to which, for other devices, the embodiment of the present invention, which does not do this, to be had Body limits.
In addition, primary colours output control signal is used for the color of light that primary lights output unit is controlled to export.
It should be noted that color of light lights clock signal for projection light source drive control circuit to be controlled to drive various bases Coloured light output unit exports the sequence of color of light.
It should also be noted that, the output terminal of optical projection system includes gate control signal end, feux rouges brightness regulation end R_ PWM, green light brightness regulation end G_PWM, blue light brightness adjustable side B_PWM, yellow light brightness regulation end Y_PWM, lighting control signal D and primary colours output control signal end EN are held, wherein, primary colours output control signal end EN can include red optical output control signal R_EN, blue laser output control signal B_EN, green optical output control signal B_EN.
In addition, gate control signal end can include the first gate control signal end A, the second gate control signal end B and Third gate control signal end C, correspondingly, gate control signal includes the first gate control signal, the second gate control signal With third gate control signal.
In a specific implementation, when the logical signal of gating signal control output is 110, and red laser output terminal R- C connection red lasers output unit 6, blue laser output terminal B-C connection blue lasers output unit 7, green laser output When holding G-C connection green laser output units 8, referring to Fig. 2, which gates the first input end A1 and first of control module 1 The A connections of gate control signal end, the second input terminal B1 and the second gate control signal end B of light source gating control module 1 connect It connects, the third input terminal C1 of light source gating control module 1 is connect with third gate control signal end C, light source gating control module 1 The 4th input terminal IN and this first driving logic module 2 first input end connect respectively with lighting control signal end D, light source 5th input terminal b of gating control module 1 is connect with green light brightness regulation end G_PWM, and the 6th of light source gating control module 1 is defeated Enter to hold a to be connect with feux rouges brightness regulation end R_PWM, the first output terminal ax of light source gating control module 1 and third driving logic First output terminal 41 of module 4 is connect respectively with the first driving end 61 of red laser output unit 6, light source gating control module 1 second output terminal ground connection.The of third output terminal bx and the primary lights sequential export module 5 of light source gating control module 1 One input terminal 51 connects, the 4th output terminal by of light source gating control module 1 and the first driving end of green laser output unit 8 81 connections, the 7th output terminal of light source gating control module 1 are connect with the third input terminal 53 of primary lights sequential export module, light The 8th output terminal cy ground connection of source gating control module 1；Second input terminal 22 of the first driving logic module 2 is controlled with primary colours output Signal end EN connections processed, the first output terminal 23 of the first driving logic module 2 and the 7th output terminal of light source gating control module 1 Cx, primary lights sequential export module 5 third input terminal 53 and second drive logic module 3 first input end 31 connect respectively It connects, first drives the 4th input terminal 54 of the second output terminal 24 of logic module 1 and primary lights sequential export control module 5 and be somebody's turn to do Second input terminal 43 of third driving logic module 4 connects respectively, the third output terminal 25 and second of the first driving logic module 2 Drive the second input terminal 32, the third driving third input terminal 44 of logic module 4 and primary lights sequential export mould of logic module 3 5th input terminal 55 of block 5 connects respectively, the 33 and second gate control signal end of third input terminal of the second driving logic module 3 B connections, the output terminal 34 of the second driving logic module 3 and the 4th input terminal 45 and green laser of third driving logic module 4 Second driving end 82 of output unit 8 connects, and the third input terminal 35 of the second driving logic module 3 is grounded, third driving logic The second output terminal 46 of module 4 is connect with the first of blue laser output unit 7 the driving end 71；Primary lights sequential export module 5 The 6th input terminal 56 connect with blue light brightness adjustable side B_PWM, the 7th input terminal 57 of primary lights sequential export module 5 with it is yellow The Y_PWM connections of brightness adjustable side, the output terminal 58 of primary lights sequential export module 5 and the second of blue laser output unit 7 Driving end 72 connects.
Since the first input end A1 of light source gating control module 1 is connect with the first gate control signal end A, light source choosing Second input terminal B1 of logical control module 1 is connect with the second gate control signal end B, and the third of light source gating control module 1 is defeated Enter to hold C1 to be connect with third gate control signal end C, the 4th input terminal IN of light source gating control module 1 controls signal with lighting D connections are held, the 5th input terminal b of light source gating control module 1 is connect with green light brightness regulation end G_PWM, light source gating control 6th input terminal a of module 1 is connect with feux rouges brightness regulation end R_PWM, light source gating control module 1 the first output terminal ax with First driving end 61 of red laser output unit 6 connects, the second output terminal ay ground connection of light source gating control module 1, light source The 4th output terminal by for gating control module 1 is connect with the first of green laser output unit 8 the driving end 81.Therefore, the light source Gating control module 1 can be controlled based on the first gate control signal from the first gate control signal end A, from the second gating The second gate control signal of signal end B processed, the third gate control signal from third gate control signal end C and from point Lamp control signal end D lighting control signal, by the feux rouges brightness regulated signal from feux rouges brightness regulation end R_PWM export to Red laser output unit 12, and the green light brightness regulated signal from green light brightness regulation end G_PWM is exported to green and is swashed Light output unit 8.
Again since the second input terminal 22 of the first driving logic module 2 is connect with primary colours output control signal end EN, the First output terminal 23 of one driving logic module 2 is connect with the third input terminal 53 of primary lights sequential export module 5, the first driving The second output terminal 24 of logic module 2 is connect with the 4th input terminal 54 of primary lights sequential export control module 5, and the first driving is patrolled The third output terminal 25 for collecting module 2 is connect respectively with the 5th input terminal 55 of primary lights sequential export module 5, and primary colours light sequential is defeated The 6th input terminal 56 for going out module 5 is connect with blue light brightness adjustable side B_PWM, the 7th input of primary lights sequential export module 5 End 57 is connect with yellow light brightness regulation end Y_PWM, output terminal 58 and the blue laser output unit of primary lights sequential export module 5 Second driving end 72 connect.Therefore, the first driving logic module 2 and primary lights sequential export module 5 can be based on lighting Signal and the primary colours output control signal from primary colours output control signal end EN are controlled, blue light brightness adjustable side B_ will be come from The blue light brightness Regulate signal of PWM or yellow light brightness regulated signal from yellow light brightness regulation end Y_PWM are exported to blue Laser output unit.
It should be noted that the laser due to only including three kinds of primary colours of RGB in projection light source, yellow light is to pass through Blue laser as excitation light source excite colour wheel module in yellow fluorescent powder generate, therefore the brightness of yellow light be indirectly by The drive control of blue laser, by realizing the adjusting control to yellow light to the driving of blue laser, will correspond to The brightness regulated signal of yellow light is also exported to blue laser, with the driving blue laser work of this PWM value, so as to realize indirectly Yellow light according to predetermined luminance output.
Again due to the first output terminal 23 of the first driving logic module 2 and the first input end of the second driving logic module 3 31 connections, the second output terminal 24 of the first driving logic module 1 are connect with the second input terminal 43 of third driving logic module 4, The third output terminal 25 and second of first driving logic module 2 drives the second input terminal 32 of logic module 3, third driving logic The third input terminal 44 of module 4 and the 5th input terminal 55 of primary lights sequential export module 5 connect respectively, the second driving logic mould The third input terminal 33 of block 3 is connect with the second gate control signal end B, the output terminal 34 and third of the second driving logic module 3 The 4th input terminal 45 of logic module 4 and the second driving end 82 of green laser output unit 8 is driven to connect, the second driving logic The third input terminal 35 of module 3 is grounded, the second output terminal 46 of third driving logic module 4 and blue laser output unit 7 First driving end 71 connect, third driving logic module 4 the first output terminal 41 respectively with red laser output unit 6 first Input terminal 61 connects, the 7th output terminal 1013 of light source gating control module 1 and the first input end of third driving logic module 4 42 connections.Therefore, the first driving logic module 2, second drives logic module 3 and third driving logic module 4 that can be based on base Color output control signal and lighting control signal, generate color of light and light clock signal, and the color of light is lighted clock signal Output to primary colours export the corresponding primary lights output unit of control signal, and it is single which includes red laser output Member 6, blue laser output unit 7 or green laser output unit 8.
And then the corresponding primary lights output unit of primary colours output control signal can be based on the feux rouges brightness regulated signal, The green light brightness regulated signal, the blue light brightness Regulate signal, the yellow light brightness regulated signal and the color of light light sequential letter Number, corresponding color of light is exported, so as to fulfill the drive control to three kinds of laser light source output units.
Wherein, the corresponding primary lights output control unit of primary colours output control signal can be based on the feux rouges brightness regulation When signal, the green light brightness regulated signal, the blue light brightness Regulate signal, the yellow light brightness regulated signal and the color of light are lighted Sequential signal, exporting the operation of corresponding color of light can be：It is when primary colours export the corresponding primary lights output unit of control signal During red laser control unit 6, red laser output unit 6 can light clock signal and feux rouges brightness regulation based on color of light Signal output red light；It, should when it is green laser output unit 8 that primary colours, which export the corresponding primary lights output unit of control signal, Green laser output unit 8 can light clock signal based on the color of light and the green light brightness regulated signal exports green light； It is the blue laser output unit 7, and the blue laser is defeated when the primary colours export the corresponding primary lights output unit of control signal When going out unit 7 and receiving the blue luminences Regulate signal, which can light sequential based on the color of light Signal and the blue light brightness Regulate signal output blue light；It is blue when the primary colours export the corresponding primary colours light unit of control signal Laser output unit 7 and when the blue laser output unit 7 receives the yellow brightness regulated signal, is lighted based on the color of light Clock signal and the yellow light brightness regulated signal, it is real in the light path of rear end by the drive control of the blue laser output unit 7 Now export sodium yellow.
It should be noted that when the projection light source drive control circuit is driven three color laser light sources, due to this The laser brightness of three color laser light sources is high, purity is good and gamut range is wide, therefore, not only increases color saturation and color is bright Degree, eliminates colour cast problem, and also improves the efficiency of laser light source output color of light, and then improve drop shadow effect.
It should also be noted that, the brightness that feux rouges brightness regulated signal is used to adjust primary lights output unit output feux rouges is high It is low, and the feux rouges brightness regulated signal could export feux rouges brightness regulated signal in the case where being not 0 to corresponding primary colours In light output unit, to light primary lights output unit, make primary lights output unit output red light；Green light brightness regulated signal For adjust primary lights output unit output green light brightness height, and green light brightness regulated signal not be 0 in the case of, Green light brightness regulated signal can be exported into corresponding primary lights output unit, to light primary lights output unit, make primary colours Light output unit exports green light；The brightness that blue light brightness Regulate signal is used to adjust primary lights output unit output blue light is high Low, yellow light brightness regulated signal is used to adjust the brightness height of primary lights output unit output yellow light, and is adjusted in blue light brightness Signal or yellow light brightness regulated signal could believe blue light brightness Regulate signal or yellow light brightness regulation in the case where being not 0 Number output, to light blue laser output unit, makes blue laser output unit output blue in blue laser output unit Light or sodium yellow.And in embodiments of the present invention, the feux rouges brightness regulated signal, blue light brightness Regulate signal, yellow light brightness tune Brightness regulated signal between section signal and green light brightness regulated signal can be the same or different, and the embodiment of the present invention is to this It is not specifically limited.
In addition, in embodiments of the present invention, when red laser output terminal R-C connection red lasers output unit 6, blue Laser output B-C connection blue lasers output unit 7, during green laser output terminal G-C connection green laser output units 8, The projection light source drive control circuit can not only drive blue laser output unit 7, red laser output through the above way 8 three kinds of primary lights output units of unit 6 and blue laser output unit；When red laser output terminal R-C connection red lasers Output unit 6, during blue laser output terminal B-C connection blue laser output units 7, which can also drive blue to swash 6 two kinds of primary lights output units of light output unit 7 and red laser output unit；When blue laser output terminal B-C connections blue During laser output unit 7, blue laser output unit 7 equally can also be only driven.It that is to say, when the projection device includes blue When 8 three kinds of laser output unit 7, red laser output unit 6 and blue laser output unit primary colours light units, this can be passed through The projection light source drive control circuit of inventive embodiments is into line light source drive control, when the projection device is exported including blue laser During 6 two kinds of primary lights output units of unit 7 and red laser output unit, can also by projection light source drive control circuit into Line light source drive control.
In a kind of specific implementation, when the primary lights output unit is laser, and when the first gate control signal for 0, It when second gate control signal is 0 and third gate control signal is 1, that is to say, which can During driving 6 two kinds of primary lights devices of blue laser 7 and red laser, since red light is generated by red laser, And green light, blue light and sodium yellow are generated by blue laser, therefore, light source gating control module 1 is red by this Brightness regulated value is exported to red laser 6, which is exported to primary lights sequential export module 5, The primary lights sequential export module 5 can be based on primary colours output control signal and lighting control signal, and green light brightness regulation is believed Number, blue light brightness Regulate signal or yellow light brightness regulated signal exported to blue primary color light device 7；The first driving logic module 2, Second driving logic module 3 and third driving logic module 4 can be based on primary colours output control signal and lighting control signal, production Raw color of light lights clock signal, and the color of light is lighted clock signal and exports base corresponding to primary colours output control signal In coloured light device；The corresponding primary lights device of primary colours output control signal can be based on feux rouges brightness regulated signal, green light brightness tune It saves signal, blue light brightness Regulate signal, yellow light brightness regulated signal and lights the corresponding color of light of sequential letter output.
For example, when the projection light source drive control circuit drives 6 two kinds of primary lights devices of blue laser 7 and red laser When, it that is to say, when first gate control signal is 0, the second gate control signal is 0, when third gate control signal is 1, In double-colored primary lights device and color of light output timing schematic diagram as shown in Figure 3, since red light is produced by red laser Raw, and green light, blue light and sodium yellow are generated by blue laser, therefore, if primary colours output control letter Number signal 100 is controlled for red output, then the corresponding primary lights device of the color control signal is red laser 6, light source choosing The feux rouges brightness regulated signal can be sent to red laser 6 by logical control module 1, the first driving logic module 2 and the Three driving logic modules 3 can be based on red output control signal 100 and lighting control signal, and generation red light lights sequential Signal, and the red light is lighted into clock signal and is exported to red laser light source 6, which can be based on the red light Light clock signal and feux rouges brightness regulated signal output feux rouges.
If primary colours output control signal controls signal 010 for green output, primary colours output control signal corresponds to Primary lights device for blue primary color light device 7, then the primary lights sequential export module 5 can be based on green output and control signal 010 and lighting control signal, which is exported to blue laser 7；The first driving logic module 2, Second driving logic module 3 and third driving logic module 4 are based on green output control signal and lighting control signal generation Green light lights clock signal, and the green light is lighted clock signal and is exported to blue laser 7, which can Clock signal output green light is lighted to be based on the green light brightness regulated signal and green light.
If primary colours output control signal controls signal 001 for blue output, primary colours output control signal corresponds to Primary lights device for blue primary color light device 7, then the primary lights sequential export module 5 can be based on blue output and control signal 001 and lighting control signal, which is exported to blue laser 7；The first driving logic module 2, Second driving logic module 3 and third driving logic module 4 are based on blue output control signal and lighting control signal generation Blue light lights clock signal, and this is lighted clock signal and is exported to blue laser 7, which can be based on The blue light brightness Regulate signal and blue light light clock signal output blue light.If the color control signal is exported for yellow When controlling signal 110, the corresponding primary lights device of primary colours output control signal is blue primary color light device 7, then the primary colours light sequential Output module 5 can be based on yellow output control signal 110 and lighting control signal, which is exported To blue laser 7；The first driving logic module 2, second drives logic module 3 and third driving logic module 4 to be based on being somebody's turn to do Yellow output control signal and lighting control signal generation sodium yellow light clock signal, and the sodium yellow is lighted clock signal Output is to blue laser 7, which can be based on the yellow light brightness regulated signal and sodium yellow lights clock signal Export sodium yellow.
It should also be noted that, in embodiments of the present invention, primary colours output control signal end can also be to include red Control signal end R_EN, green output control signal end G_EN and blue output control signal end B_EN are exported, the present invention is implemented Example is not specifically limited this.
It is used to control the driving of projection light source drive control circuit various in addition, lighting timing control signal due to the color of light Primary lights output unit exports the sequence of color of light, and therefore, when the red laser output unit output red light, which swashs Output blue light or sodium yellow and green laser output unit do not export green light to light output unit, similarly, when the blue Laser output unit exports blue light or during yellow light, red laser output unit not output red light and green laser output unit Do not export green light；When green laser output unit exports green light, output red light and blue do not swash red primaries light Light output unit not output blue light or sodium yellow.
Referring to Fig. 2, light source gating control module 1 gates the first input end A1B21 and gate control signal of control module 1 ABC connections are held, the second input terminal IN and first that light source gating control module 1 gates control module 1 drives the of logic module 2 One input terminal 21 is connect respectively with lighting control signal end D, and light source gating control module 1 gates the third input of control module 1 End b connect with green light brightness regulation end G_PWM, light source gate control module 1 gating control module 1 the 4th input terminal a with it is red The R_PWM connections of brightness adjustable side, light source gating control module 1 gate the drivings of the 5th input terminal cx and first of control module 1 First output terminal 23 of logic module 2 connects, and to be based on gate control signal and lighting control signal, is gated and controlled by light source Module 1 gates control module 1 from red laser output terminal R-C, blue laser output terminal B-C and green laser output terminal G-C At least one primary colours light output end of gating；Light source gating control module 1 gates the first output terminal ax of control module 1 and feux rouges control The input terminal Br connections of unit 117 processed, the drive output 121 and red laser output terminal R-C of feux rouges control unit 117 connect It connects, when gating red laser output terminal R-C, feux rouges brightness regulated signal is exported by feux rouges control unit 117 to red Color laser output R-C；Light source gating control module 1 gates the second output terminal by of control module 1 and green light control unit 118 Input terminal Bg connections, the drive output 131 of green light control unit 118 is connect with green laser output terminal G-C, to gate During green laser output terminal G-C, green light brightness regulated signal is exported by green light control unit 118 to green laser output terminal G-C；The third output terminal ay of the light source gating gating control module 1 of control module 1 and the first of primary lights sequential export module 5 is defeated Enter 51 connection of end, light source gating control module 1 gates the 4th output terminal bx of control module 1 and primary lights sequential export module 5 The second input terminal 52 connect, after at least one primary colours light output end of gating, to control signal and primary colours defeated based on lighting Go out to control signal, logic module 1 and primary lights sequential export module 5 are driven by green light brightness regulated signal, blue light by first At least one of brightness regulated signal and yellow light brightness regulated signal are exported to blue laser output terminal B-C.
In addition, referring to Fig. 2, light source gating control module 1 gates the 5th output terminal c of control module 1 and third drives The first input end 42 of logic module 4 connects, and light source gating control module 1 gates the 6th input terminal cy ground connection of control module 1, And when primary colours light output end in projection light source drive control circuit gating 3 or two kinds of primary colours light output ends, the light can be made Source gating control module receives a low level signal, and pass through the 5th output terminal c and export the low level signal to third In driving logic circuit.
It should be noted that the first input end of light source gating control module includes the first gated end A1, the second gating Disconnected B1 and third gated end C1.The drive output of feux rouges control unit includes the first driving end Sr and the second driving end Ar.It is green The drive output of light control unit includes the first driving end Sg and the second driving end Ag.
Wherein, when red laser output terminal R-C connection red laser output units, green laser output terminal G-C connects Green laser output unit is connect, during blue laser output terminal B-C connection blue laser output units, referring again to Fig. 2, due to First gated end A1 of light source gating control module 1 is connect with the first gating signal end gate control signal end A, light source gating control Second gated end B1 of molding block 1 is connect with the second gating signal end B, light source gating control module 1 third gated end C1 with The end C connections of third gating signal, the first output terminal ax and the input terminal of feux rouges control unit 117 of light source gating control module 1 Br connections, the second output terminal by of light source gating control module 1 are connect with the input terminal Bg of green light control unit 118.Therefore, light Source gating control module 1 can be based on first gate control signal, the second gate control signal, third gate control signal and The lighting controls signal, which is exported to the feux rouges control unit 117, which is believed Number output is to the green light control unit 118.
Again due to the first input end 61 of the first driving end Sr and red laser output unit 6 of feux rouges control unit 117 Connection, the second driving end Ar of feux rouges control unit 117 are connect with the second input terminal 62 of red laser output unit 6, green light First driving end Ag of control unit 118 is connect with the first input end 81 of green laser output unit 8, green light control unit 118 the second driving end Sg is connect with the second input terminal 82 of green laser output unit 8.Therefore, the feux rouges control unit 13 The feux rouges brightness regulated signal can be exported to the red laser output unit 6, which can be by green light Brightness regulated signal is exported to the green laser output unit 8, which can be based on the primary colours and export Signal and the lighting is controlled to control signal, the blue light brightness Regulate signal or the yellow light brightness regulated signal are exported to the blue Laser output unit 7.
It should be noted that in embodiments of the present invention, light source gating control module 1, feux rouges control unit 117, green light Control unit 118, primary lights sequential export module 5 can be switching gate control device, for example, primary lights sequential export module 5 select chip for ADG708BRUZ logics, can also be other devices certainly, and the embodiment of the present invention is not specifically limited this.
Referring to Fig. 4, the first driving logic module 2 includes the first logic gates 26, the second logic gates 27 and third Logic gates 28.
The first input end 261 of first logic gates 26, the first input end 271 of the second logic gates 27 and third The first input end 281 of logic gates 28 is connect respectively with lighting control signal end D, and the second of the first logic gates 26 is defeated The second input terminal 282 for entering end 262, the second input terminal 272 of the second logic gates 27 and third logic gates 28 is distinguished It is connect with primary colours output control signal end EN, output terminal 283 and the light source of the first logic gates 26 gate the defeated of control module 1 Enter end, the third input terminal 53, second of primary lights sequential export module 5 drives the first input end 31 of logic module 3 to connect respectively It connects；The output terminal 273 of second logic gates 27 and the 4th input terminal 54 and the third driving of primary lights sequential export module 5 are patrolled The first input end for collecting module 4 connects respectively；Second input terminal of third logic gates and the output terminal of light source selecting module Connection, the output terminal 283 of third logic gates 28 drive with the 5th input terminal 55, second of primary lights sequential export module 5 The third input terminal 44 of the second input terminal 32 and third the driving logic module 4 of logic module 2 connects respectively.
It should be noted that the first logic gates, the second logic gates and third logic gates all can be with Gate circuit, certainly, in practical applications, first logic gates, the second logic gates and third logic gates may be used also Think other logic gates, the embodiment of the present invention is not especially limited this.
Referring to Fig. 4, the second driving logic module 3 includes the 4th logic gates 36, the 5th logic gates 37 and sequential Control circuit device 38.
The first input end 361 of 4th logic gates 36 is connect with the first output terminal 23 of the first driving logic module 2, Second input terminal 362 of the 4th logic gates 36 is connect with the third output terminal 25 of the first driving logic module 2, the 4th logic The output terminal 363 of gate circuit 36 is connect with the input terminal 371 of the 5th logic gates 37；The output terminal of 5th logic gates 37 372 connect with the first input end 381 of sequential control circuit device 38, the second input terminal 382 of sequential control circuit device 38 It is connect with gate control signal end, the 4th of the output terminal 383 of sequential control circuit device 38 and third driving logic module 4 is defeated Enter end 45, blue laser output terminal connects respectively, the third input terminal 384 of sequential control circuit device 38 is grounded.
It should be noted that the 4th logic gates 36 can be AND gate circuit, the 5th logic gates 37 can be non- Gate circuit, sequential control circuit device 38 can be light source gate, certainly in practical applications, the 4th logic gates 36 Can also be other logic gates, sequential control circuit device 38 or other circuit elements with the 5th logic gates 37 Part, the embodiment of the present invention are not specifically limited this.
Referring to Fig. 4, third driving logic module 4 includes the 6th logic gates 47, the 7th logic gates the 48, the 8th is patrolled Collect gate circuit 49 and buffer 410；
The first input end 471 of 6th logic gates 47 is connect with the second output terminal 24 of the first driving logic module 2, and the 6th Second input terminal 472 of logic gates 47 is connect with the third output terminal 25 of the first driving logic module 2, the 6th logic gate electricity The output terminal 473 on road 47 is connect with the first input end 481 of the 7th logic gates 48；The second of 7th logic gates 48 is defeated The output terminal for entering end 482 with light source gating control module 1 is connect, output terminal 483 and the buffer 410 of the 7th logic gates 48 Input terminal 4101, the 8th logic gates 49 input terminal 491 connect respectively, the output terminal 492 of the 8th logic gates 49 It is connect with red laser output terminal；The conduction terminal 4103 of buffer 4101 is connect with the output terminal 34 of the second driving circuit 3, buffering The output terminal 4102 of device 410 and blue laser output terminal.
It should be noted that the 6th logic gates 47 and the 7th logic gates 48 can be AND gate circuit, the 8th patrols Volume gate circuit 49 can be not circuit, in practical applications, the 6th logic gates 47, the 7th logic gates 48 and the Eight logic gates 49 can also be other logic gates, and the embodiment of the present invention is not specifically limited this.
In addition, in embodiments of the present invention, referring to Fig. 4, the first input end 261 of the first logic gates 26, second are patrolled It collects the first input end 271 of gate circuit 27 and the first input end 281 of third logic gates 28 controls signal with lighting respectively Hold D connections, the second input terminal 262 of the first logic gates 26, the second input terminal 272 of the second logic gates 27 and third Second input terminal 282 of logic gates 28 is connect respectively with primary colours output control signal end EN, the first logic gates 26 Output terminal 263 is patrolled with the input terminal of light source gating control module 1, the third input terminal the 53, the 4th of primary lights sequential export module 5 The first input end 361 for collecting gate circuit 36 connects respectively；The output terminal 273 of second logic gates 27 and primary lights sequential export The 4th input terminal 54 and 47 first input end 471 of the 6th logic gates of module 5 connect respectively；Third logic gates 28 Output terminal 283 and the 5th input terminal 55 of primary lights sequential export module 5, the second input terminal 362 of the 4th logic gates 36 It is connected respectively with the second input terminal 472 of the 6th logic gates 47；The output terminal 363 of 4th logic gates 36 is patrolled with the 5th The input terminal 371 of volume gate circuit 37 connects, and the of the output terminal 372 of the 5th logic gates 37 and sequential control circuit device 38 One input terminal 381 connects, and the second input terminal 382 of sequential control circuit device 38 is connect with gate control signal end, sequential control The output terminal 383 of circuit devcie 38 processed is connect respectively with the conduction terminal 4103 of buffer 410, blue laser output terminal, sequential control The third input terminal 384 of circuit devcie 38 processed is grounded.473 and the 7th logic gates 48 of output terminal of 6th logic gates 47 First input end 481 connect, the output terminal 482 of the 7th logic gates 48 is patrolled with the input terminal the 4101, the 8th of buffer 410 The input terminal 491 for collecting gate circuit 49 connects respectively, output terminal 492 and the red laser output terminal of the 8th logic gates 49；It is slow Rush the output terminal 4102 of device 410 and blue laser output terminal.
Due to the first input end 261 of the first logic gates 26,271 and of first input end of the second logic gates 27 The first input end 281 of third logic gates 28 is connect respectively with lighting control signal end D, and the of the first logic gates 26 Second input terminal 282 of two input terminals 262, the second input terminal 272 of the second logic gates 27 and third logic gates 28 It is connect respectively with primary colours output control signal end EN；273 and the 6th logic gates 47 of output terminal of second logic gates 27 First input end 471 connects；Second input terminal of 283 and the 6th logic gates 47 of output terminal of third logic gates 28 472 connections；The output terminal 473 of 6th logic gates 47 is connect with the first input end 481 of the 7th logic gates 48, and the 7th The output terminal 482 of logic gates 48 is connect with the input terminal 491 of the 8th logic gates 49, the 8th logic gates 49 it is defeated Outlet 492 and red laser output terminal.Therefore, swash when the primary colours export the corresponding primary lights output unit of control signal to be red During the corresponding red laser output unit 6 of light output end, the first logic gates 26, the second logic gates 27, third logic It is defeated that gate circuit 28, the 6th logic gates 47, the 7th logic gates 48 and the 8th logic gates 49 can be based on the primary colours Go out to control signal and the lighting to control signal, generate the color of light and light clock signal, and the color of light is lighted into clock signal It exports to the corresponding red laser output unit 6 of red laser output terminal.The red laser output unit can be based on the red Output control signal and color of light light clock signal output red light.
For example, in three color base coloured light devices and color of light output timing schematic diagram as shown in Figure 4, controlled when the primary colours export When signal processed controls signal 100 for red output, the corresponding primary lights output unit of primary colours output control signal swashs to be red Light output unit 6, and lighting control signal is high level signal, therefore, first logic gates 26, the second logic gate electricity Road 27, third logic gates 28, the 6th logic gates 47, the 7th logic gates 48 and the 8th logic gates 49 can be with Control signal is exported based on the primary colours and the lighting controls signal, when the corresponding red light of the red output control signal of generation is lighted Sequential signal, and the red light is lighted into clock signal and exports red laser output unit 6 corresponding to red laser output terminal.It should Red laser output unit 6 can be based on red output control signal 100 and red light lights clock signal output red light.
Again since the output terminal 263 and the first input end 361 of the 4th logic gates 36 of the first logic gates 26 connect It connects；The output terminal 283 of third logic gates 28 is also connect with the second input terminal 362 of the 4th logic gates 36；4th patrols The output terminal 363 for collecting gate circuit 36 is connect with the input terminal 371 of the 5th logic gates 37, the output of the 5th logic gates 37 End 373 is connect with the first input end 381 of sequential control circuit device 38, the second input terminal of sequential control circuit device 38 382 connect with the second gate control signal end B, the output terminal 383 of sequential control circuit device 38 and the conduction terminal of buffer 410 4103 connections, the third input terminal 384 of sequential control circuit device 38 are grounded.The output terminal 483 of 7th logic gates 48 is also It is connect with the input terminal 4101 of buffer 410, the output terminal 4102 of buffer 410 is connect with blue laser output terminal.Therefore, when When the corresponding primary lights output unit of primary colours output control signal is the blue laser output unit 7, first logic gate electricity Road 26, the second logic gates 27, third logic gates 28, the 4th logic gates 36, the 5th logic gates the 37, the 6th Logic gates 47, the 7th logic gates 48, buffer 410 and sequential control circuit device 38 can be based on the primary colours and export Signal and the lighting is controlled to control signal, generation color of light lights clock signal, and the color of light is lighted clock signal output To blue laser output unit.The blue laser output unit 7 can be based on blue output control signal and color of light is lighted Clock signal output blue light；Alternatively, the blue laser output unit 7 can be based on yellow output control signal and color of light Light clock signal output sodium yellow.
For example, when the primary colours export control signal and control signal 010 for blue output, primary colours output control signal pair The primary lights output unit answered is the corresponding blue laser output unit 7 of blue laser output terminal, and lighting control signal is High level signal, therefore, first logic gates 26, the second logic gates 27, third logic gates 28, the 4th logic Gate circuit 36, the 5th logic gates 37, the 6th logic gates 47, the 7th logic gates 48, buffer 410 and sequential control Circuit devcie 38 processed can be based on primary colours output control signal and the lighting controls signal, generate blue output control signal pair The color of light answered lights clock signal, and the color of light is lighted clock signal and exports blue corresponding to blue laser output terminal Laser output unit 7.When the blue laser output unit 7 can be lighted based on blue output control signal 001 and color of light Sequential signal output blue light.When the primary colours export control signal as yellow output control signal 110, primary colours output control letter Number corresponding primary colours light unit is blue laser output unit 7, and lighting control signal is high level signal, and therefore, this One logic gates 26, the second logic gates 27, third logic gates 28, the 4th logic gates 36, the 5th logic gate Circuit 37, the 6th logic gates 47, the 7th logic gates 48, buffer 410 and sequential control circuit device 38 can be with bases Control signal is exported in the primary colours and the lighting controls signal, and the corresponding color of light of generation yellow output control signal lights sequential Signal, and the color of light is lighted into clock signal and is exported to blue laser output unit 7.The blue laser output unit 7 can be with Control signal 110 is exported based on the yellow and color of light lights clock signal output sodium yellow.
In addition, due also to the output terminal 383 of sequential control circuit device 38 is connect with green laser output terminal.Therefore, when The corresponding primary lights output unit of primary colours output control signal is the corresponding green laser output unit 8 of green laser output terminal When, the first logic gates 26, the second logic gates 27, third logic gates 28, the 4th logic gates the 36, the 5th are patrolled Primary colours output control signal and lighting control signal, generation can be based on by collecting gate circuit 37 and sequential control circuit device 38 The color of light lights clock signal, and the color of light is lighted clock signal and is exported to the corresponding green of green laser output terminal Laser output unit 8.The green laser output unit 8 can be based on green output control signal and color of light lights sequential letter Number output green light.
For example, when the primary colours export control signal and control signal 010 for green output, primary colours output control signal pair The primary lights output unit answered is green laser output unit 8, and lighting control signal is high level signal, therefore, first Logic gates 26, the second logic gates 27, third logic gates 28, the 4th logic gates 36, the 5th logic gate electricity Road 37 and sequential control circuit device 38 can be based on primary colours output control signal and the lighting controls signal, and generation green is defeated Go out to control the corresponding color of light of signal to light clock signal, and the color of light is lighted into clock signal and is exported to green laser output Unit 8.It is defeated that the green laser output unit 8 can light clock signal based on green output control signal 010 and color of light Go out green light.
In embodiments of the present invention, when the projection light source system is more to projection light source driving circuit input by output terminal During a logical signal, which can be based on multiple logical signal, and control mould is gated by light source Block, first drive logic module and primary lights sequential export module from red laser output terminal, blue laser output terminal and green At least one primary colours light output end is gated in laser output.Meanwhile the projection light source drive control circuit can be based on it is multiple The primary colours output control signal that logical signal includes, passes through the first driving logic module, the second driving logic module and third Driving logic module generates corresponding color of light and lights clock signal, and color of light is lighted at least one base of clock signal output In coloured light output terminal.Again due to for each primary colours light output end at least one primary colours light output end, the primary colours light output An end corresponding primary lights output unit, therefore the projection light source driving circuit can be included based on multiple logical signal Feux rouges brightness regulated signal, green light brightness regulated signal, blue light brightness Regulate signal, yellow light brightness regulated signal, primary colours output Control signal and color of light light clock signal, and corresponding color of light is exported by least one primary lights output unit, so as to It realizes at least one laser light source, such as the drive control of two-color laser light source or three color laser light sources, that is to say, the present invention The projection light source drive control circuit that embodiment provides can select access two-color laser light source or three by multiple logical signals So as to be applicable in the drive control of a variety of laser light sources, it is bright to realize a variety of projection light source different base colors for color laser light source The output control of Regulate signal is spent, projection light source brightness can be adjusted.
One of ordinary skill in the art will appreciate that hardware can be passed through by realizing all or part of step of above-described embodiment Complete, relevant hardware can also be instructed to complete by program, program can be stored in a kind of computer-readable storage In medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, all in the spirit and principles in the present invention Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of projection light source drive control circuit, which is characterized in that including：
Light source gates control module, the first driving logic module, the second driving logic module, third driving logic module, primary colours Light output unit；
It is defeated that the primary lights output unit includes the first primary lights output unit, the second primary lights output unit, third primary lights Go out unit；
The input terminal of the light source gating control module connects the output terminal of the projection light source system, inputs primary colours brightness tune Save signal, the output terminal and the first primary lights output unit of the light source gating control module, the second primary colours light output list Member, third primary lights output unit connect respectively,；
The input terminal of the first driving logic module is connect with the output terminal of the projection light source system, input primary colours output control Signal processed, the output terminal of the first driving logic module drive with the input terminal of light source gating control module, described second The input terminal of dynamic logic module and the input terminal of third driving logic module connect respectively,
The output terminal of the second driving logic module and the input terminal of third driving logic module and the second primary lights are defeated Go out unit to connect respectively；
The input terminal of the third driving logic module is connect with the output terminal of light source gating control module, and the third is driven The output terminal of dynamic logic module is connect with the first primary lights output unit,
The first driving logic module, the second driving logic module and the third drive logic module based on described Primary colours output control signal, generates corresponding color of light and lights clock signal,
Clock signal is at least lighted according to the color of light by light source gating control module, projection light source system is exported Primary lights brightness regulated signal is exported into the primary lights output unit, so that at least one primary lights output unit output pair The color of light answered.
2. projection light source drive control circuit as described in claim 1, which is characterized in that the first primary lights output unit Specially blue laser output unit, the second primary lights output unit are specially green laser output unit, the third Primary lights output unit is specially red laser output unit.
3. projection light source drive control circuit as described in claim 1, which is characterized in that
The first primary lights output unit further includes primary lights sequential export module, wherein, the primary lights sequential export mould The input terminal of block drives output terminal, the light of logic module with the output terminal of the projection light source system, described first respectively The output terminal of source gating control module connects respectively.
4. projection light source drive control circuit as claimed in claim 2, which is characterized in that the red laser output unit, Green laser output unit and blue laser output unit respectively include red laser output terminal, and green laser output terminal is blue Color laser output.
5. projection light source drive control circuit as claimed in claim 1 or 2, which is characterized in that the output of the optical projection system End includes gate control signal end, primary lights brightness regulation end and primary colours output control signal end, is respectively used to output gating control Signal processed, primary lights brightness regulated signal and primary colours output control signal.
6. projection light source drive control circuit as described in claim 1, which is characterized in that
The first driving logic module includes the first logic gates, the second logic gates and third logic gates；
The first input end of first logic gates, the first input end of second logic gates and the third are patrolled The first input end for collecting gate circuit is connect respectively with the lighting control signal end, the second input of first logic gates End, the second input terminal of second logic gates and the third logic gates the second input terminal respectively with the base Color output control signal end connection, the output terminal of first logic gates and the input of light source gating control module End, the third input terminal of the primary lights sequential export module, described second drive the first input end of logic module to connect respectively It connects；
Fourth input terminal and the third of the output terminal of second logic gates with the primary lights sequential export module The first input end of driving logic module connects respectively；
The output terminal of the third logic gates and the 5th input terminal of the primary lights sequential export module, second drive Second input terminal of dynamic logic module and the third input terminal of third driving logic module connect respectively.
7. projection light source drive control circuit as described in claim 1, which is characterized in that the second driving logic module packet Include the 4th logic gates, the 5th logic gates and sequential control circuit device；
The first input end of 4th logic gates is connect with the first output terminal of the described first driving logic module, described Second input terminal of the 4th logic gates is connect with the third output terminal of the described first driving logic module, the 4th logic The output terminal of gate circuit is connect with the input terminal of the 5th logic gates；
The output terminal of 5th logic gates is connect with the first input end of the sequential control circuit device, the sequential Second input terminal of control circuit device is connect with the gate control signal end, the output terminal of the sequential control circuit device The green laser output unit connection, the third input end grounding of the sequential control circuit device.
8. projection light source drive control circuit as described in claim 1, which is characterized in that the third drives logic module packet Include the 6th logic gates, the 7th logic gates, the 8th logic gates and buffer；
The first input end of 6th logic gates is connect with the second output terminal of the described first driving logic module, described Second input terminal of the 6th logic gates is connect with the third output terminal of the described first driving logic module, the 6th logic The output terminal of gate circuit is connect with the first input end of the 7th logic gates；
Second input terminal of the 7th logic gates is connect with the output terminal of light source gating control module, and the described 7th The output terminal of logic gates is connect respectively with the input terminal of the buffer, the input terminal of the 8th logic gates, institute The output terminal for stating the 8th logic gates is connect with the red laser output unit, the output terminal of the buffer and the indigo plant Color laser output unit connects.
9. projection light source drive control circuit as described in claim 1, which is characterized in that the primary colours output control signal packet Include one or more of signals below：Red optical output control signal, blue laser output control signal, green optical output control signal.
10. projection light source drive control circuit as described in claim 1, which is characterized in that the primary lights brightness regulation letter Number include one or more of signals below：Feux rouges brightness regulated signal, blue light brightness Regulate signal, green light brightness regulation letter Number.
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CN108267918B (en) 2020-11-06

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