CN101393381A - Projector circuit board and projector - Google Patents
Projector circuit board and projector Download PDFInfo
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- CN101393381A CN101393381A CNA2007101531239A CN200710153123A CN101393381A CN 101393381 A CN101393381 A CN 101393381A CN A2007101531239 A CNA2007101531239 A CN A2007101531239A CN 200710153123 A CN200710153123 A CN 200710153123A CN 101393381 A CN101393381 A CN 101393381A
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- circuit board
- signal
- projector
- processing unit
- central processing
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Abstract
The present invention provides a circuit board for a projector, which comprises an image receiving end, a central processing unit, a motor driving module, a digital minitype reflector chip, and a digital minitype reflector chip control module. The image receiving end is responsible for receiving an image signal and sending the image signal to the central processing unit for processing. According to the processed image signal, the motor driving module drives a motor to rotate a color wheel for generating a colored light beam. The digital minitype reflector chip comprises a plurality of microlenses, is responsible for reflecting the colored light beam to a lens so as to project out the image signal. The deflection angles of the plurality of the microlenses are controlled by the digital minitype reflector chip control module. The digital minitype reflector chip control module is coupled with the central processing unit and the digital minitype reflector chip.
Description
Technical field
The invention relates to a kind of projector circuit board and the projector that uses this projector circuit board.
Background technology
Because the external form of traditional projector mostly is flat, so the projector circuit board in traditional projector is divided into two usually, is respectively a first circuit board and a second circuit board.First circuit board comprises a digital minitype reflector chip (Digital Micromirror Device chip, DMD chip) and a digital minitype reflector chip control module.Second circuit board comprises a central control unit (CPU) of projector.Signal between first and second circuit board is by the connector or the winding displacement transmission of butt joint property.
Figure 1A illustrates the position relation between above-mentioned first and second circuit board.As shown in the figure and since digital minitype reflector chip 102 must be fixed as vertical with the light path L of camera lens 104, so first circuit board B
1Also must be vertical with light path L.Consider the mechanics limit of traditional projector, second circuit board B
2Must be vertically installed in this first circuit board B
1, can be installed in the finite space of traditional projector.First and second circuit board B
1With B
2Connector or winding displacement with butt joint property links each other.
With first and second circuit board B
1With B
2Separate the B of pairing circuit board figure such as Figure 1B
1' (corresponding first circuit board B
1) and B
2' (corresponding second circuit board B
2) shown in.Connector 106 is the connector on the first circuit board; Connector 108 is the connector on the second circuit board.
Because the signal demand between above-mentioned first and second circuit board is by the connector or the winding displacement transmission of butt joint property,, will cause projector normally to move or projection goes out poor quality's picture as if employed connector or the poor quality of winding displacement own.In addition, polylith printed circuit board (PCB) (PCB) is being made and is being assembled the tolerance that exists fixed proportion each other.If the tolerance between above-mentioned first and second circuit board is excessive, then very likely produce loose contact between two circuit boards, even the phenomenon of open circuit/short circuit, will cause projector normally to move.
Along with the semiconductor development of science and technology, the transfer rate of electronic signal is more and more fast.For the high-speed transfer signal, the quality of the butt joint connector between above-mentioned first and second circuit board and the material of winding displacement must be better, and this will increase production cost.In addition, along with the lifting of electronic signal transfer rate, the electromagnetic interference (EMI) of butt joint property connector and winding displacement will be more serious.
Based on the shortcoming of above-mentioned traditional projector circuit board, this area needs to solve the projector circuit board of above-mentioned shortcoming.
Summary of the invention
One embodiment of the present of invention provide a kind of projector circuit board, comprise an image receiving end, a CPU (central processing unit), a motor driving module, a digital minitype reflector chip and a digital minitype reflector chip control module.The manufacture process that above-mentioned each assembly adopted is a high-order semiconductor fabrication.The image receiving end is responsible for receiving a signal of video signal and is sent to central processing unit for processing.According to processed image signal, motor driving module drives one motor rotates a colour wheel, to produce a colored light beam.Digital minitype reflector chip comprises a plurality of small eyeglasses, in order to the reflection colored light beam, and according to signal of video signal colored light beam modulation is become an image strip, and is sent to a camera lens, goes out an image with projection.The deflection angle of a plurality of small eyeglasses is controlled by digital minitype reflector chip control module.Digital minitype reflector chip control module couples CPU (central processing unit) and digital minitype reflector chip.Wherein, projector circuit board is perpendicular to a light path of camera lens.
One embodiment of the invention also utilize above-mentioned projector circuit board development a kind of projector, comprising a light source, a colour wheel, a motor, a catoptron, a camera lens and above-mentioned projector circuit board.Light source provides a light beam.Light beam converts a colored light beam to by colour wheel.Motor is responsible for rotating colour wheel.Catoptron is responsible for reflecting the digital minitype reflector chip of colored light beam to the projector circuit board.Digital minitype reflector chip is in order to the reflection colored light beam, and according to signal of video signal colored light beam modulation become an image strip, and is sent to camera lens, with projection one image.Wherein, projector circuit board is perpendicular to a light path of camera lens.
State with other purpose, feature and advantage and can become apparent on the present invention for allowing, hereinafter list several embodiment especially, and conjunction with figs. elaborates.
The accompanying drawing summary
Figure 1A illustrates the position relation between above-mentioned first and second circuit board;
Figure 1B is the synoptic diagram after above-mentioned first and second circuit board is disassembled;
The projector circuit board of Fig. 2 diagram embodiment of the invention and the position of camera lens relation;
Fig. 3 is the calcspar of the projector circuit board of embodiments of the invention; And
A kind of embodiment of Fig. 4 diagram projector of the present invention.
Embodiment
About aforementioned and other technology contents, characteristics and effect of the present invention, in the detailed description of following cooperation embodiment with reference to the accompanying drawings, can clearly present.
Fig. 2 figure solves the position relation of the projector circuit board and the camera lens of the embodiment of the invention.Be different from Fig. 1 and adopt a first circuit board B
1With a second circuit board B
2Realize a traditional projector circuit board, the embodiment of the invention only adopts monolithic projector circuit board 202.The embodiment of the invention is made the assembly of projector circuit board 202 with a high-order semiconductor fabrication (manufacture process with smaller channels length breadth length ratio), so the area of projector circuit board 202 will significantly reduce, be enough to be installed in the finite space that projector provides.For the light that allows digital minitype reflector chip 204 be reflected can be sent out camera lens 206 smoothly, digital minitype reflector chip 204 must be perpendicular to a light path L (as shown in Figure 2) of camera lens 206.Therefore, projector circuit board is perpendicular to light path L.
Fig. 3 is the calcspar of the projector circuit board of the embodiment of the invention.Assembly 300 is for the projector circuit board that this case proposed, comprising an image receiving end 302, a CPU (central processing unit) 304, a motor driving module 306, a digital minitype reflector chip 308 and a digital minitype reflector chip control module 310.The manufacture process that each assembly is adopted in the above-mentioned projector circuit board 300 is the high-order semiconductor fabrication, so the area of projector circuit board 300 will be littler than traditional projector circuit board.Image receiving end 302 is responsible for receiving a signal of video signal 312, and it is passed to a CPU (central processing unit) 304 processing.According to processed image signal, motor driving module 306 drives a motor (be positioned at outside the projector circuit board 300, be not shown among the figure) and rotates a colour wheel (be positioned at outside the projector circuit board 300, be not shown among the figure) generation one colored light beam 314.Digital minitype reflector chip 308 reflects colored light beam 314 and according to signal of video signal 312 colored light beam 314 modulation is become an image strip 315 and is sent to a camera lens 3150.Camera lens 3150 is in order to throw an image 3152.Wherein, digital minitype reflector chip 308 comprises a plurality of small eyeglasses (not being shown among the figure).The deflection angle of a plurality of small eyeglasses is by being coupled to digital minitype reflector chip control module 310 controls of CPU (central processing unit) 304 with digital minitype reflector chip 308.
A kind of embodiment of Fig. 4 diagram projector, the projector circuit board 400 that wherein adopts this case and proposed.As shown in Figure 4, except projector circuit board 400, the projector of this case also comprises a light source 402, a colour wheel 404, a motor 406, a catoptron 408 and a camera lens 410.Light source 402 provides a light beam 412.Motor 406 is controlled by a motor driving module 418 of projector circuit board 400, in order to rotate colour wheel 404.Light beam 412 converts a colored light beam 414 to after filtering via colour wheel 404.Catoptron 408 is responsible for adjusting the direct of travel of colored light beam 414.Colored light beam 414 will be received by the digital minitype reflector chip on the projector circuit board 400 416 after catoptron 408 reflections.Digital minitype reflector chip 416 will reflect above-mentioned colored light beam and be modulated into an image strip 4160 according to signal of video signal and be sent to camera lens 410 and go out an image 4102 with projection.Projector circuit board 400 concerns as shown in Figure 2 that with the position of the light path of camera lens 410 projector circuit board 400 is perpendicular to the light path of camera lens 410.
Consult Fig. 4, projector circuit board 400 can receive multiple signal of video signal, wherein can comprise HDMI signal, TMDS signal, Graphic/component signal, Component signal, Svideo signal, Composite signal, RS232 signal, IR signal and usb signal.As shown in the figure, the image connector of above-mentioned signal of video signal comprises HDMI connector, DVI connector, VGA connector, RCA
*3 connectors, Svideo connector, RCA
*1 connector, RS232 connector ... Deng.In certain embodiments, the signal of video signal that receives needs more can import a CPU (central processing unit) 420 through after the suitable image processing.Illustrate, when the signal of video signal that is received is the Graphic/component signal, VGA connector 422 (claiming the Video Graphics Array connector again) will be sent into an analog-to-digital image converter 424 to the Graphic/component signal that receives and handle.Analog-to-digital image converter 424 is coupled to Video Graphics Array connector 422 and CPU (central processing unit) 420, and the signal of video signal of being responsible for Video Graphics Array connector 422 is received (Graphic/component signal) is converted to digital format by analog form.Another example, when the signal of video signal that is received is the HDMI signal, HDMI connector 426 (claiming the high resolution multimedia interface connector again) will be sent into a digital image signal receiver module 428 to the HDMI signal that receives and handle.Digital image signal receiver module 428 is coupled to high resolution multimedia interface connector 426 and CPU (central processing unit) 420, and the signal of video signal of being responsible for high resolution multimedia interface connector 426 is received (HDMI signal) converts 420 treatable forms of CPU (central processing unit) to.
CPU (central processing unit) 420 will be handled the signal of video signal that is received.Motor driving module 418 will be according to the signal of video signal CD-ROM drive motor of handling 406.CPU (central processing unit) 420 also is responsible for driving the rotational angle of the small eyeglass (not being shown among the figure) on the digital minitype reflector chip control module 432 control figure minitype reflector chip 416.
In addition, as shown in the figure, projector circuit board 400 more comprises a direct current power transfer module 430, uses for projector circuit board 400 in order to produce a plurality of current potentials.
The above, it only is preferred embodiment of the present invention, can not limit scope of the invention process with this, simple equivalent that promptly claim and invention description content are done according to the present invention generally changes and modifies, and all belongs in the scope that patent of the present invention contains.Arbitrary embodiment of the present invention in addition or claim need not reach the disclosed whole purposes of the present invention or advantage or characteristics.In addition, summary part and title only are the usefulness that is used for assisting the patent document search, are not to be used for limiting interest field of the present invention.
Claims (12)
1. projector circuit board comprises:
One image receiving end receives a signal of video signal;
One CPU (central processing unit) is handled this signal of video signal;
One motor driving module drives a motor according to this processed image signal, a colour wheel is rotated, to produce a colored light beam;
One digital minitype reflector chip comprises a plurality of small eyeglasses, in order to reflecting this colored light beam, and according to this signal of video signal this colored light beam modulation is become an image strip, and is sent to a camera lens, with projection one image; And
One digital minitype reflector chip control module couples this CPU (central processing unit) and this digital minitype reflector chip, in order to control the deflection angle of these small eyeglasses according to this signal of video signal;
Wherein, this projector circuit board is perpendicular to a light path of this camera lens.
2. projector circuit board as claimed in claim 1 also comprises a direct current power transfer module, in order to produce a plurality of current potentials, uses for this projector circuit board.
3. projector circuit board as claimed in claim 1, wherein this image receiving end is a Video Graphics Array (Video Graphics Array, a VGA) connector.
4. projector circuit board as claimed in claim 3, also comprise an analog-to-digital image converter, couple this Video Graphics Array connector and this CPU (central processing unit), be converted to digital form by analog form in order to this signal of video signal that this Video Graphics Array connector is received.
5. projector circuit board as claimed in claim 1, wherein this image receiving end is a high resolution multimedia interface (High Definition Multimedia Interface, a HDMI) connector.
6. projector circuit board as claimed in claim 5, also comprise a digital image signal receiver module, couple this high resolution multimedia interface connector and this CPU (central processing unit), convert the treatable form of this CPU (central processing unit) in order to the signal of video signal that this high resolution multimedia interface connector is received.
7. projector comprises:
One light source provides a light beam;
One motor;
One colour wheel is rotated by this motor driven, and this Beam Transformation is become a colored light beam;
One camera lens; And
One projector circuit board comprises:
One image receiving end receives a signal of video signal;
One CPU (central processing unit) is handled this signal of video signal;
One motor driving module drives this motor according to this processed image signal;
One digital minitype reflector chip comprises a plurality of small eyeglasses, has in order to reflect this
Color beam, and the modulation of this colored light beam is become an image strip according to this signal of video signal,
And be sent to this camera lens, to throw an image; And
One digital minitype reflector chip control module couples this CPU (central processing unit) and this number
The word minitype reflector chip is in order to control the deflection angle of these small eyeglasses;
Wherein, this projector circuit board is perpendicular to a light path of this camera lens.
8. projector circuit board as claimed in claim 7 also comprises a direct current power transfer module, in order to produce a plurality of current potentials, uses for this projector circuit board.
9. projector circuit board as claimed in claim 7, wherein this image receiving end is a Video Graphics Array (Video Graphics Array, a VGA) connector.
10. projector circuit board as claimed in claim 9, also comprise an analog-to-digital image converter, couple this Video Graphics Array connector and this CPU (central processing unit), be converted to digital form by analog form in order to the signal of video signal that this Video Graphics Array connector is received.
11. projector circuit board as claimed in claim 7, wherein this image receiving end is a high resolution multimedia interface connector.
12. projector circuit board as claimed in claim 11, also comprise a digital image signal receiver module, couple this high resolution multimedia interface (High Definition MultimediaInterface, HDMI) connector and this CPU (central processing unit) convert the treatable form of this CPU (central processing unit) in order to the signal of video signal that this high resolution multimedia interface connector is received.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101531239A CN101393381A (en) | 2007-09-21 | 2007-09-21 | Projector circuit board and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101531239A CN101393381A (en) | 2007-09-21 | 2007-09-21 | Projector circuit board and projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101393381A true CN101393381A (en) | 2009-03-25 |
Family
ID=40493720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101531239A Pending CN101393381A (en) | 2007-09-21 | 2007-09-21 | Projector circuit board and projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101393381A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108803204A (en) * | 2017-04-28 | 2018-11-13 | 宏碁股份有限公司 | The operating method of projector and projector |
-
2007
- 2007-09-21 CN CNA2007101531239A patent/CN101393381A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108803204A (en) * | 2017-04-28 | 2018-11-13 | 宏碁股份有限公司 | The operating method of projector and projector |
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Open date: 20090325 |