CN1971402A - Device and method for adjusting image projection of drivers - Google Patents
Device and method for adjusting image projection of drivers Download PDFInfo
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- CN1971402A CN1971402A CN 200510047814 CN200510047814A CN1971402A CN 1971402 A CN1971402 A CN 1971402A CN 200510047814 CN200510047814 CN 200510047814 CN 200510047814 A CN200510047814 A CN 200510047814A CN 1971402 A CN1971402 A CN 1971402A
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Abstract
The invention discloses an image projecting device and method for adjusting the driver that comprises automatic guidance of the image projecting device is executed by external input control command, the control component of the driving motor and color wheel can be controlled; the driver of the driving motor is adjusted by driving signal that is electric source signal and the normal power supply signal output from control tool; the method contains the first stage that is the electric source signal and the normal power supply signal are supplied to said driver as the input of the control command; the second stage is that in driving condition, if the control command is input from the external, the source signal is maintained, at the same time, the normal power supply signal is converted to stop the driver to drive; in condition of kinetopause, the automatic guidance is over, the source signal is maintained, at the same time, the normal power supply signal is converted to drive the driver, that is the third stage. The invention can save the expense of power cut and guarantee bigger occupancy space.
Description
Technical field
The invention relates to digital light and handle the image projection system of (DLP:Digital Light Processor) optical system, especially adjust the image projection apparatus and the method for driver when fulfiling automatic guiding (Homing).
Background technology
DLP is the new-type display mode with respect to LCD (Liquid Crystal Display) projection (Projection), be to utilize reflecting element to realize the method for high definition image quality, the chip that promptly utilizes integrated hundreds thousand of reflection-type elements is reflection ray optionally, shows the technology of high briliancy, high-definition image.Though be to go through projectoscope, cathode ray tube (CRT), liquid crystal indicator (LCD) and the extension of the porjection type picture display technique of development, (LCD) compares the feature with reflection-type with liquid crystal indicator.
It is core with integrated digital micromirror device (DMD:Digital Micro-mirror Display) with corresponding millions of the micro-reflectors (Micromirror) of sharpness that digital light is handled (DLP), by each micro-reflector signal processing chip (chip) formation of control figure micro mirror device (DMD).
The structure of the common DLP optical system that constitutes like this, as shown in Figure 1.
With reference to Fig. 1, the DLP optical system provides the light to the screen irradiation, and determines that according to picture signal each micro-reflector is to shine to screen orientation to open (On) state, does not still shine to screen orientation to close (Off) state.
The DLP optical system is by the lamp 110 that produces light, produce the first smooth tunnel 120 of light by lamp 110, color separation is R by the white light of the first smooth tunnel 120, G, first colour wheel 130 of B, boundling is through first focus lamp (Condensing Lens) 140 of the light of first colour wheel 130, adjustment is through the light of first focus lamp (Condensing Lens) 140 digital micromirror device 150 to the screen irradiation, enlarge the projection mirror 160 of digital micromirror device 150 reflected light to the screen projection, adjust first driver, 170 formations that digital micromirror device 150 drives.
If the operation of the common DLP optical system with above-mentioned formation is described, the white light that lamp 110 the penetrates body inner curvature boundling that is reflected will be by the first smooth tunnel (Light Tunnel), 120 tunnels by the light of boundling.First colour wheel 130, the first colour wheels 130 correspondence image vertical synchronizations revolution of light by the first smooth tunnel 120 through cutting apart for color.
Light by first colour wheel 130 relies on digital micromirror device 150 to reflect to screen orientation through first focus lamp (Condensing Lens) 140.State is opened/closed to the light that is radiated at digital micromirror device 150 according to the micro-reflector of getting pixel value control, directive screen or disengaging screen.Light by digital micromirror device 150 reflection directive screens is expanded as the degree that can shine large-screen by projecting mirror 160.This digital micromirror device 150 relies on first driver 170 to drive.
And as above the traditional images grenade instrumentation is upgraded by guiding (Homing) process automatically.Need the power supply supply in order to fulfil this automatic guiding, still, first driver 170 does not need the power supply supply when guiding automatically, therefore, in order to prevent unnecessary power consumption, needs to use other power cut-off device to cut off the electricity supply.Though this power cut-off device is fulfiled the effect of first driver, 170 power supplies when cutting off guiding automatically, because it is made of complicated circuit, manufacturing cost is higher, has the problem that needs the more buying expenseses of payment.
Summary of the invention
The present invention is motion in order to address the above problem, and purpose provides the DLP optical system can adjust the image projection apparatus and the method for driver drives when fulfiling automatic guiding automatically at the state of not cutting off the electricity supply;
Another object of the present invention provides the DLP optical system when fulfiling automatic guiding by stopping driver drives automatically, can prevent the image projection apparatus and the method for unnecessary power consumption;
Another purpose of the present invention provides when the DLP optical system is fulfiled automatic guiding does not utilize other power cut-off device to stop driver drives, the image projection apparatus that can reduce expenses and method.
In order to achieve the above object, the technical solution used in the present invention is:
Apparatus of the present invention are separated into R, G, B rayed screen at the light that light source produces by being driven the rotating colour wheel of motor, comprise for control command, control the automatic guiding of above-mentioned image projection apparatus and control above-mentioned driving motor and the control part of colour wheel driving according to the outside input; For the drive signal according to above-mentioned control device output is power supply signal and power supply normal signal, adjust the driver that above-mentioned driving motor drives.
The inventive method is separated into R, G, B rayed screen at the light that light source is produced by being driven the rotating colour wheel of motor, comprise input along with the control command of the indicating image of outside projection, apply power supply signal and power supply normal signal to above-mentioned driver simultaneously, drive the 1st stage of above-mentioned driver; At the state of above-mentioned driver drives, if from the outside input indication control command of guiding automatically, when keeping above-mentioned power supply signal present situation, change above-mentioned power supply normal signal, stop the 2nd stage of above-mentioned driver drives; In the driving halted state of above-mentioned driver, along with the end of above-mentioned automatic guiding, when keeping above-mentioned power supply signal present situation, change above-mentioned power supply normal signal, drive the 3rd stage of above-mentioned driver again.
The present invention has following beneficial effect and advantage:
1. the present invention is when the DLP optical system is fulfiled automatic guiding, stops the driving of driver automatically by control part, because of not utilizing other power cut-off device, so can save the required expense of cutting off the electricity supply, guarantees the bigger space of occupying.
Description of drawings
Fig. 1 is general DLP optical system pie graph;
Fig. 2 is according to the embodiment of the invention, adjusts the grenade instrumentation pie graph of driver;
Fig. 3 is the drive signal performance plot of adjusting for key diagram 2 drivers;
Fig. 4 is the process flow diagram according to the grenade instrumentation driver method of adjustment of the embodiment of the invention.
Wherein: 311 is light source; 312 is the light tunnel; 313 is colour wheel; 314 is focus lamp; 315 is control part; 316 is DMD; 317 is driving motor; 318 is driver; 319 is user's input part.
Embodiment
Below, with reference to accompanying drawing, describe embodiments of the invention in detail.
Fig. 2 is according to the embodiment of the invention, adjusts the image projection apparatus pie graph of driver drives.
With reference to Fig. 2, image projection apparatus of the present invention possesses the light source 311 that produces white light, the light tunnel (Light Tunnel) 312 of the white light that produces by light source 311, separation is pure color R by the white light of light tunnel 312, G, the colour wheel 313 of B light, the R that boundling is separated by colour wheel 313, G, the focus lamp that B light shines (Condensing Lens) 314, be incident upon on the screen (not shown) in order to control light source 311 living white lights, and the revolution of control colour wheel and the control part 315 of location change, in order to show R successively, G, the image of B forms the DMD (digital micro-analysis equipment) 316 of a picture, in order to turn round the driving motor 317 of colour wheel 313 driving shafts, according to the control of control part 315, drive the driver 318 of driving motor 317 and DMD316, in order to import user's input part 321 of associated user's orders such as automatic guiding.
The RGB color filter of colour wheel 313 can 3 grades divide 360 degree to adhere to respectively, or carries out 6 five equilibriums and make same color adhere to twice, by reducing in order to see through the degree of a certain color revolution driving motor 317, reduces the speed of gyration of driving motor 317.The width size that is equivalent to the light by light tunnel 312 is called spot definition (Spot size), because light does not form primitive color light during by above-mentioned RGB color filter junction, so generally do not use this light during display image.
R, G, the B light of incident shone DMD316 after focus lamp 314 boundlings were separated by colour wheel 313, and adjusted the suitable DMD316 size of irradiation of R, G, B light.
The relevant implementation program of control part 315 built-in image projection and for the program of guiding automatically etc., it carries out the revolution of programmed control colour wheel 313 according to this, after being separated into R, G, B light, the light that light source 311 is produced shines, and fulfil automatic guiding according to automatic bootstrap, and control part 315 has been set in order to implement driver required for the present invention 318 and has been driven the adjustment program, and the driver 318 when control part 315 guides automatically according to this driving adjustment programmed control drives.
DMD316 is formed by the chip of making by the semiconductor machining operation (Chip), has formed hundreds thousand of the mirrors to millions of 16 * 16 sizes on the big chip of thumbnail.During high-resolution (HighDefinition) signal, (the representative resolution of the picture signal of (Analog-to-Digital) conversion is horizontal direction 1280 pixels (pixel) to A/D, vertical direction 720 lines (line).
Driving motor 317 uses direct current (DC) motor usually, and it connects colour wheel 313 by the driving shaft (not shown) of colour wheel 313, by turning round this driving shaft revolution colour wheel 313.
In order to drive this driver 318, control part 315 applies a succession of drive signal to driver 318 and adjusts its driving, the present invention is applied to drive signal in a succession of signal of driver 318 normally (pwrgood) signal of promptly powering by adjustment, stop driver 318 and drive when guiding automatically.
With power supply (power) signal of control part 315 in a succession of signal that driver 318 applies and power supply normal signal is example, observes the driving adjustment process of driver 318.
For example, if control part 315 to driver 318 apply as the power supply signal of (A) among Fig. 3 high interval (that is, during the permission) and as the high interval of power supply normal signal (that is, during the permission) of (B) among Fig. 3, driver 318 just is driven.
Apply the high interval state of power supply signal this, if control part 315 applies as (C) among Fig. 3 power supply normal signal low interval (that is, during forbidding) to driver 318, driver 318 just is stopped, and still continues this moment to driver 318 power supplies.
But, even to driver 318 power supplies, because as long as driver 318 stops to drive, the DMD316 and the driving motor 317 that are driven device 318 drivings just can not be driven, so consume electric power hardly, i.e. the present invention utilizes this technological thought, when automatic guiding after driver 318 power supplies, by stopping its driving, make power consumption become minimum.
With reference to Fig. 4, describe aforesaid control part 315 in detail and whether adjust the process that driver 318 drives according to automatic guiding.
With reference to Fig. 4, at first, if the user is by the order (S401) of user's input part 319 input indicating image projections, control part 315 just applies as (A) among Fig. 3 and the high interval and high interval driver 318 (S402) that drives of power supply normal signal of power supply signal (B) simultaneously to driver 318.
At this driver 318 driving conditions, control part 315 judges whether the user command (S403) by the user command of the automatic guiding of indication of user's input part 319 inputs or indication end image projection, judged result, if there is not the input of automatic boot order or the finish command, continue to drive driver 318 as driving process (S402).
If judged result has automatic boot order input, it is high interval the time that control part 315 continues to apply power supply signal as (A) among Fig. 3 to driver 318, apply the low interval of power supply normal signal (promptly to driver 318, between the exclusion area) stop the driving (S404) of driver 318, this moment, control part 315 was fulfiled automatic guiding according to user's automatic guiding indication.
At this state of fulfiling automatic guiding, control part 315 judges whether automatic guiding finishes or do not have to finish the automatic user's indication (S405) that guides, judged result guides automatically and finishes or have to finish the indication of guiding automatically, it is high interval the time that control part 315 continues to apply power supply signal as (A) among Fig. 3 to driver 318, applies the high interval driver 318 (S406) that drives of power supply normal signal again to driver 318.
If the judged result of deterministic process (S405) guiding does not automatically have to finish or do not have to finish the indication of guiding automatically, control part 315 is kept and is driven the identical state of stopped process (S405).
By as above process, according to automatic guiding whether the present invention adjusts the driving of driver 318 automatically.
Though according to the foregoing description technological thought of the present invention has been carried out concrete record, the foregoing description is the explanation for it, must be noted that the foregoing description is not in order to limit invention.And if the common expert in the technology of the present invention field, just will appreciate that in the technology of the present invention thought range to have varied embodiment.
Claims (7)
1. one kind in order to adjust the image projection apparatus of driver, the light that produces at light source is separated into R, G, B rayed screen by being driven the rotating colour wheel of motor, it is characterized in that: comprise for control command, control the automatic guiding of above-mentioned image projection apparatus and control above-mentioned driving motor and the control part of colour wheel driving according to the outside input; For the drive signal according to above-mentioned control output is power supply signal and power supply normal signal, adjust the driver that above-mentioned driving motor drives.
2. described in order to adjust the image projection apparatus of driver by claim 1, it is characterized in that: above-mentioned control part is exported when fulfiling automatic guiding between above-mentioned power supply normal signal exclusion area and is stopped above-mentioned driver drives.
3. by claim 1 or 2 described in order to adjust the image projection apparatus of driver, it is characterized in that: above-mentioned control part is exported above-mentioned power supply normal signal and is allowed that interval to drive above-mentioned driver be the image projection apparatus of feature when fulfiling automatic guiding.
4. one kind in order to adjust the image projection method of driver, the light that produces at light source is separated into R, G, B rayed screen by being driven the rotating colour wheel of motor, it is characterized in that: comprise outside input along with the control command of indicating image projection, apply power supply signal and power supply normal signal to above-mentioned driver simultaneously, drive the 1st stage of above-mentioned driver; At the state of above-mentioned driver drives, if from the outside input indication control command of guiding automatically, when keeping above-mentioned power supply signal present situation, change above-mentioned power supply normal signal, stop the 2nd stage of above-mentioned driver drives; In the driving halted state of above-mentioned driver, along with the end of above-mentioned automatic guiding, when keeping above-mentioned power supply signal present situation, change above-mentioned power supply normal signal, drive the 3rd stage of above-mentioned driver again.
5. described in order to adjust the image projection method of driver by claim 4, it is characterized in that: above-mentioned the 1st stage, along with the outside input of the control command of indicating image projection, apply power supply signal simultaneously to above-mentioned driver and allow interval and the power supply normal signal allows interval.
6. described in order to adjust the image projection method of driver by claim 5, it is characterized in that: above-mentioned the 2nd stage, along with the indication outside input of the control command of guiding automatically, when above-mentioned driver continues to apply above-mentioned power supply signal permission interval, apply between above-mentioned power supply normal signal exclusion area to above-mentioned driver.
7. described in order to adjust the image projection method of driver by claim 6, it is characterized in that: above-mentioned the 3rd stage, along with the end of above-mentioned automatic guiding, when above-mentioned driver continues to apply above-mentioned power supply signal permission interval, apply the power supply normal signal to above-mentioned driver and allow interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510047814 CN1971402A (en) | 2005-11-25 | 2005-11-25 | Device and method for adjusting image projection of drivers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510047814 CN1971402A (en) | 2005-11-25 | 2005-11-25 | Device and method for adjusting image projection of drivers |
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| CN1971402A true CN1971402A (en) | 2007-05-30 |
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| CN 200510047814 Pending CN1971402A (en) | 2005-11-25 | 2005-11-25 | Device and method for adjusting image projection of drivers |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856897A (en) * | 2019-03-15 | 2019-06-07 | 深圳市铂骏科技开发有限公司 | A kind of projection arrangement |
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2005
- 2005-11-25 CN CN 200510047814 patent/CN1971402A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856897A (en) * | 2019-03-15 | 2019-06-07 | 深圳市铂骏科技开发有限公司 | A kind of projection arrangement |
| CN109856897B (en) * | 2019-03-15 | 2024-04-16 | 深圳市铂骏科技开发有限公司 | Projection device |
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