CN101982978B - System and method for controlling stereo glasses shutters - Google Patents
System and method for controlling stereo glasses shutters Download PDFInfo
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- CN101982978B CN101982978B CN2010105224509A CN201010522450A CN101982978B CN 101982978 B CN101982978 B CN 101982978B CN 2010105224509 A CN2010105224509 A CN 2010105224509A CN 201010522450 A CN201010522450 A CN 201010522450A CN 101982978 B CN101982978 B CN 101982978B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
- G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual effects
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/144—Processing image signals for flicker reduction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
- H04N13/341—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/398—Synchronisation thereof; Control thereof
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
- G02B2027/0134—Head-up displays characterised by optical features comprising binocular systems of stereoscopic type
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/014—Head-up displays characterised by optical features comprising information/image processing systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2213/00—Details of stereoscopic systems
- H04N2213/002—Eyestrain reduction by processing stereoscopic signals or controlling stereoscopic devices
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- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
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Abstract
A system, method, and computer program product are provided for controlling stereo glasses shutters. In use, a right eye shutter of stereo glasses is controlled to switch between a closed orientation and an open orientation. Further, a left eye shutter of the stereo glasses is controlled to switch between the closed orientation and the open orientation. To this end, the right eye shutter and the left eye shutter of the stereo glasses may be controlled such that the right eye shutter and the left eye shutter simultaneously remain in the closed orientation for a predetermined amount of time.
Description
Technical field
The present invention relates to video display, and more particularly, relate to and utilize three-dimensional photochopper glasses to watch three-dimensional video-frequency and graph image.
Background technology
Equip various display equipments so that carry out one-dimensional (mono) and stereos copic viewing.Watch differently with one-dimensional, stereos copic viewing relates to the left eye that shows the people and the stand-alone content of right eye.Specifically, this type of stereos copic viewing need present independent image to people's left eye and right eye.In a kind of stereos copic viewing (that is, the sequential keyboard encoder stereos copic viewing) of particular type, present this type of left image and right image in an alternating manner.Experience in order to ensure suitable stereos copic viewing, also use alternately photochopper glasses usually, it makes sees that at appropriate time left eye left image and right eye see right image.
In the past, the sequential keyboard encoder stereos copic viewing is good in CRT and related display [for example, high frame rate (DLP) projecting apparatus etc.] work of going up.Yet because some problems, the sequential keyboard encoder stereos copic viewing does not also represent prospect on LCD (LCD) (no matter being flat board or projecting apparatus form).For instance, the slow-response time of the pixel in the LCD environment makes " ghost image " that has left image in the right view, and vice versa.In addition, regrettably, the essence of LCD renewal process causes completely appearing the only short time cycle of right image and left image, as describing in detail now.
Figure 1A explanation is utilizing LCD to attempt the hypothesis shortcoming that will exist under the situation of stereos copic viewing.Such as in this hypothesis instance displaying, LCD will receive pixel with raster scan order (that is from left to right waiting, from top to bottom, line by line) through cable 10 (for example, digital visual interface (DVI) or Video Graphics Array (VGA) cable).At first send the first left image L1 that hope is watched by left eye through cable 10.After this, exist the transmission that is called as vertical blanking interval VBI to end.Next, send the first right image R1 that hopes to be used for right eye, etc.
Different with CRT with other related display; The LCD pixel has respective capacitances property memory element; Said capacitive memory element makes each pixel its color of reservation and intensity till the lcd driver associated electronic components is upgraded it, and said lcd driver associated electronic components is with grating order address pixel.Therefore; In time T 1, when sending the part of the first right image R1, the real image that sends from lcd screen be included in the bottom the first left image L1 " not overriding " (for example; Red) part and the first right image R1 newly write (for example, green) part.In addition, at T2, and in fact whole vertical blanking interval VBI shows only to comprise the first right image R1 in time T 2 beginnings.In time T 3, partly override the first right image R1 by the second left image L2 with institute's exhibition method.For this reason, if show the displaying contents of time T 1 and T3 to left eye or right eye, this will receive the partial content at least of not hoping to be used for this unfortunately so.
As mentioned previously, use the anaglyph spectacles that is equipped with right eye photochopper and left eye photochopper to guarantee that suitable eyes are watched appropriate image during stereos copic viewing usually.Such as displaying, in this hypothesis instance, after showing the first left image L1, left eye photochopper control 20 switches to open orientation (right during this period photochopper maintains and cuts out in the orientation) with left photochopper.Similarly, after showing the first right image R1, the control 30 of right eye photochopper switches to open orientation (left photochopper was transformed into to cut out the orientation and maintain and cut out in the orientation this moment) with right photochopper.
In addition, regrettably, each eye receives the partial content at least of not hoping to be used for these eyes be in the suitable major part of duration of open orientation at the photochopper that is associated during, thereby causes not satisfied stereos copic viewing.Therefore, need overcome these relevant and/or other problem with prior art.
Summary of the invention
Be provided for controlling system, the method and computer program product of stereo glasses shutters.In use, the right eye photochopper of anaglyph spectacles switches to cut out between orientation and the open orientation through control.In addition, the left eye photochopper of anaglyph spectacles switches also to cut out between orientation and the open orientation through control.In use, the right eye photochopper of anaglyph spectacles and left eye photochopper can be closed in the orientation so that right eye photochopper and left eye photochopper remain on during measuring at the fixed time simultaneously through control.
Description of drawings
Figure 1A explanation is utilizing LCD (LCD) to attempt the hypothesis shortcoming that will exist under the situation of stereos copic viewing.
Figure 1B explanation can be implemented various structures and/or the functional illustrative computer system of various embodiment.
Fig. 2 shows the exemplary sequential that is used to improve the viewing experience when utilizing anaglyph spectacles to watch displaying contents according to an embodiment.
Fig. 3 show according to an embodiment be used to increase vertical blanking interval to be used to improve the method for the viewing experience when utilizing anaglyph spectacles to watch displaying contents.
Fig. 4 show according to another embodiment be used to increase vertical blanking interval to be used to improve the method for the viewing experience when utilizing anaglyph spectacles to watch displaying contents.
Fig. 5 shows the exemplary sequential when utilizing anaglyph spectacles and LCD or analog to watch displaying contents, used of being used for according to another embodiment.
Embodiment
Fig. 1 explanation can be implemented various structures and/or the functional illustrative computer system 100 of different embodiment.Such as displaying, the computer system 100 that comprises at least one host-processor 101 is provided, said at least one host-processor 101 is connected to communication bus 102.Computer system 100 also comprises main storage 104.Control logic (software) and storage are in main storage 104, and said main storage 104 can be the form of random-access memory (ram).
Computer system 100 also comprises graphic process unit 106 and display 108, and said display 108 is the form of LCD (LCD), digital light processing (DLP) display, liquid crystal on silicon (LCOS) display, plasma scope or other similar display.In one embodiment, graphic process unit 106 can comprise a plurality of shader modules, rasterizer module etc.Each of above-mentioned module can even be positioned on the single semiconductor platform to form GPU (GPU).
In this description, single semiconductor platform can refer to the integrated circuit or the chip of the based semiconductor of independent integral body.Note that the single semiconductor platform of term also can refer to have internuncial multi-chip module of increase, operation and obtain essential improvement aspect conventional CPU (CPU) and the bus enforcement utilizing on the said multi-chip module analog chip.Certainly, the various combinations of semiconductor platform also can located or be arranged in to various module individually according to user's requirement.
Computer system 100 also comprises auxilary unit 110.Auxilary unit 110 comprises (for example) hard disk drive and/or removable storage device drive, and said driver is represented floppy disk, tape drive, compact-disc driver etc.Removable storage device drive reads and/or is written to removable memory cell from removable memory cell in a well-known manner.
Computer program or computer control logic algorithm can be stored in main storage 104 and/or the additional storage 110.This type of computer program makes computer system 100 can carry out various functions when being performed.Memory 104, memory 110 and/or any other memory are the possible instances of computer-readable media.
Further comprise a pair and can be worn over user's anaglyph spectacles 111 on the face.Though anaglyph spectacles 111 is shown as to comprise is used for anaglyph spectacles 111 is supported on user's two elongate members on the face; But please note; Can use other structure (for example, no Component Design, headband, the helmet etc.) that the support of similar or any other type is provided.Like further displaying, anaglyph spectacles 111 also comprises right eye photochopper 114 and left eye photochopper 113.
Right eye photochopper 114 can be in open orientation and cut out the orientation with left eye photochopper 113 boths.In use, open orientation allows more light to pass through with respect to closing the orientation.Certainly, can realize this type of orientation by any machinery, electricity, optical facilities and/or any mechanism that other can carry out above-mentioned functions property of wanting.
From the control purpose, anaglyph spectacles 111 can not be coupled to three-dimensional controller 119 via cable 118 (or in wireless environment, having cable 118).Three-dimensional controller 119 is coupled between graphic process unit 106 and the display 108 functional with what be used to carry out hereinafter stated again.Though three-dimensional controller 119 is shown as resides between graphic process unit 106 and the display 108; But please note; Three-dimensional controller 119 can reside in any position that is associated with computer system 100, anaglyph spectacles 111; And/or even reside in the standalone module (specifically say (but may not), be attached in graphic process unit 106 among the embodiment of the stand-alone interface [for example, USB (USB) etc.] on the computer system 100).In one embodiment, display 108 can be directly connected to computer system 100, and three-dimensional controller 119 can further be directly connected to computer system 100 via USB interface.In addition, three-dimensional controller 119 can comprise can provide functional any hardware and/or the software wanted.
Specifically, in certain embodiments, right eye photochopper 114 and left eye photochopper 113 through control to switch closing between orientation and the open orientation.From hereinafter with conspicuous reason, the right eye photochopper 114 of anaglyph spectacles 111 and left eye photochopper 113 can be through control be closed in the orientation so that right eye photochopper 114 remains on during measuring at the fixed time with left eye photochopper 113 simultaneously.In particular, as will understanding very soon, this type of technology reduces the duration that each eye receives the partial content at least of not hoping to be used for these eyes, thereby causes the stereos copic viewing of the raising of content on the display 108.
Except that above-mentioned technology and/or substitute above-mentioned technology, three-dimensional controller 119, display 108 and/or any other the appropriate hardware that is associated with computer system 100 and/or software can be equipped with the mode that is used for to improve the viewing experience when utilizing anaglyph spectacles 111 to watch displaying contents and adjust the functional of display 108.The duration of the vertical blanking interval that specifically, is associated with the displaying contents that is received can be through increasing to be used to improve the viewing experience when utilizing anaglyph spectacles 111 to watch displaying contents.
Under the situation of this description, vertical blanking interval can refer to show that hope is by the content of eye viewing and show any duration between the content of hoping to be watched by left eye.In an optional embodiment, this type of vertical blanking interval can refer to through interface blanking line (and/or out of Memory) sent to the duration of display 108.In addition, in another embodiment, vertical blanking interval can refer on display 108 time of keeping content and not upgrading.According to an optional embodiment, through prolonging vertical blanking interval (for example, sending more blanking line etc.), can content be shown that the long period stays open the long period to allow anaglyph spectacles 111 through above-mentioned interface, therefore increase apparent luminance to the user.
To state more descriptive information about various optional structures and characteristic now, can implement or can not implement above-mentioned functions property according to user's requirement through said various optional structures and characteristic.Please pay special attention to, following information states and should not be construed as restriction by any way for illustration purposes.Can under the situation that does not comprise or comprise described further feature, incorporate any one of following characteristic according to circumstances into.
For instance; In one embodiment; Can be (promptly at host-processor 101, graphic process unit 106, chipset; One group through the integrated circuit of design to work and to sell as being used to carry out the unit of correlation function), and/or the structure of each figure below implementing under the situation of any other integrated circuit related with same and/or functional.In addition, the structure that can below implementing under the situation of general computer system, circuit board systems, the game console system that is exclusively used in entertainment purposes, dedicated system and/or any other system that wants, respectively scheme and/or functional.
Fig. 2 shows the exemplary sequential 200 that is used to improve the viewing experience when utilizing anaglyph spectacles to watch displaying contents according to an embodiment.As selection, can under the situation of the computer system 100 of Figure 1B, implement this sequential 200.Yet, can want in the environment to use sequential 200 any certainly.In addition, during following description, use above-mentioned definition.
Such as displaying, display (for example, the display 108 of Fig. 1 etc.) receives displaying contents through communication medium 201 (for example, digital visual interface (DVI) or Video Graphics Array (VGA) cable, or any other can transmit the related media of displaying contents).Under the situation of this description, this type of displaying contents can comprise pixel relevant information, (a plurality of) image and/or processing any stage the place any its component perhaps in other that can show.In Fig. 2, be shown as at first and send the first left image L1 that hope is only watched by left eye through communication medium 201.After this, exist the transmission that is called as vertical blanking interval VBI to end.Next, then send the first right image R1 that hopes only to be used for right eye etc.
Like further displaying, can control the right eye photochopper and the left eye photochopper of anaglyph spectacles (for example, anaglyph spectacles 111 etc.) independently.In one embodiment, this right eye control signal 206 that is used to control the right eye photochopper through utilization is accomplished with the left control signal 208 that is used to control the left eye photochopper.
Specifically; The left eye photochopper of anaglyph spectacles can be through control so that the left eye photochopper be in the open orientation at the duration of first group of vertical blanking interval 210 at least, said first group of vertical blanking interval 210 follow receive hope to be used for the displaying contents of left eye after.In a similar manner; The right eye photochopper of anaglyph spectacles can be through control so that the right eye photochopper be in the open orientation at the duration of second group of vertical blanking interval 213 at least, said second group of vertical blanking interval 213 follow receive hope to be used for the displaying contents of right eye after.Such as displaying, first group of vertical blanking interval 210 and second group of vertical blanking interval 213 alternately, and said both perhaps take place between the cycle of left eye content receiving in the right eye from content source.
(for example, say specifically, inferior) that in other embodiments a plurality of signals capable of using (for example, code etc.) are controlled the right eye photochopper and the left eye photochopper of anaglyph spectacles in the situation of wireless anaglyph spectacles.In this type of embodiment, one in this type of signal can be through distributing particularly so that right eye photochopper and left eye photochopper are converted to close the orientation and remain on simultaneously closes in the orientation.Certainly, can use independent signal to come only to close right eye photochopper, left eye photochopper etc.
For this reason, the right eye photochopper of anaglyph spectacles and left eye photochopper can be closed in the orientation so that right eye photochopper and left eye photochopper remain on during measuring 209 at the fixed time simultaneously through control.Such as displaying, the time that on behalf of the first right image R1, this type of amount 209 partly override by the first left image L1 scheduled time.Therefore, right eye photochopper through guaranteeing anaglyph spectacles and left eye photochopper remain at this type of time durations simultaneously closes in the orientation, has prevented that the right eye content from reaching left eye and having prevented that the left eye content from reaching right eye.
In embodiment illustrated in fig. 2, the left eye photochopper of anaglyph spectacles can be through control so that the left eye photochopper only is in the open orientation at the duration of first group of vertical blanking interval 210 (that is, when only the left eye content is shown etc.).In addition, the right eye photochopper of anaglyph spectacles can be through control so that the right eye photochopper only is in the open orientation at the duration of second group of vertical blanking interval 213 (that is, when only the right eye content is shown etc.).Therefore, this type of amount 209 is represented whole time frame that the first right image R1 partly override by the first left image L1 etc. scheduled time.
Yet; In other embodiments; The right eye photochopper of anaglyph spectacles and left eye photochopper can be through control so that photochopper each during the adjustable time cycle (wherein reduced the scheduled time amount 209) remain in the open orientation, to permit additional light through each photochopper separately.Referring to (for example) cycle 210.For this reason, user's eyes can stand more light, improve the perceived brightness of image thus.
In other words, the left eye photochopper of anaglyph spectacles can be through control so that the left eye photochopper is in the open orientation during exceeding cycle of duration of first group of vertical blanking interval 210.Similarly, the right eye photochopper of anaglyph spectacles can be through control so that the right eye photochopper is in the open orientation during exceeding cycle of duration of second group of vertical blanking interval 213.Certainly, a balance that is associated with this type of selection relate to increase wherein each eye receive duration of the partial content at least of not hoping to be used for these eyes.Specifically, may when the right eye photochopper is in the open orientation, show at least a portion of left eye content, and vice versa.
Such as referring to Figure 1B statement, the duration that can increase the vertical blanking interval VBI that is associated with the displaying contents that is received is to be used to improve the viewing experience when utilizing anaglyph spectacles to watch displaying contents.Through increasing the duration of vertical blanking interval VBI, increased the time cycle that each eye receives the content of hoping to be used for these eyes fully, thereby caused the stereos copic viewing of the raising of content on the display.
Note that vertical blanking interval VBI can anyly want mode to increase.For instance, before content source sends to display with data, can seek advice from appropriate display timing generator specification.This can be through using communication medium 201 and using any interface of wanting [for example, the demonstration recognition data (E-DDC/EDID) of the DDC/expansion of expansion, VESA (VESA) interface etc.] to accomplish.For this reason, content source can select manyly to set up/standard time sequence and/or customization sequential one send content, wherein this type of sequential allows vertical blanking interval VBI to increase.Can be further by the manufacturer of anaglyph spectacles, use configuration file to come the graphic process unit of driven image to wait to provide/keep this type of sequential.More information about various exemplary technique will wherein can use said various exemplary technique to come to increase in this way the duration of vertical blanking interval VBI with reference to set forth in detail during afterwards scheming particularly.
Fig. 3 show according to an embodiment be used to increase vertical blanking interval to be used to improve the method 300 of the viewing experience when utilizing anaglyph spectacles to watch displaying contents.Select as one, this method 300 can be implemented under the situation of the sequential 200 of the computer system 100 of Figure 1B and/or Fig. 2.Yet, can want implementation method 300 in the environment any certainly.In addition, below use the definition of being introduced in the preceding text during the description.
Such as displaying, with natural resolution drive display (for example, display 108 of Fig. 1 etc.).Referring to operation 303.This type of natural resolution can refer to that display is through designing not change the resolution of ground displaying contents.Nature resolution is normally based on the actual cell number in the display.
Next, through utilizing pixel clock to increase the speed that pixel is sent to display.Specifically, in one embodiment, can be from showing purpose through using possible maximum pixel clock to transmit pixel.Referring to operation 304.In an example embodiment, this type of maximum pixel clock can comprise the maximum pixel clock that the standard code stube cable supported (for example, for 165 Mpix/s of single-link DVI cable, for 330 Mpix/s of dual link DVI cable etc.).In another embodiment, aforementioned possible maximum pixel clock can comprise in the relevant EDID information by the indicated pixel clock limit of display.This type of limit can be identical with the DVI cable clock limit or be lower than the DVI cable clock limit.
In addition, reduce and show the horizontal blanking interval be associated, as operate in 306 indicated.Under the situation of this description, the horizontal blanking interval is meant that the processing of continuous lines turns back to the interval on a left side from the right side.In one embodiment, can be chosen as the horizontal blanking interval as far as possible little.Through maximizing pixel clock and minimize the horizontal blanking interval, the maximizing vertical blanking interval duration with aforementioned manner.To during the instance of describing statement after a while, understand the mode of accomplishing this target.
The substitute technology that is used to increase vertical blanking interval (except that increasing pixel clock etc.) can relate to the reduction display refresh rate.For instance, in an illustrative example, can under 85 Hz, use the display that is designed for 100 Hz by the vertical blanking interval with 19% with low vertical blanking interval.
In various embodiments, but the display project equipment has a plurality of extra sequential to be used to increase the duration of vertical blanking interval.Though display any one in can be in many ways is equipped with extra sequential, in one embodiment, this can accomplish through extra sequential being included in the software in the memory that is stored in display.In use, this type of extra sequential can be applicable to separately and reduce and to show the horizontal blanking interval be associated and/or increase the speed that pixel is sent to display.
The exemplary sequential that table 1 explanation can aforementioned manner be added.Certainly, restriction is by any way only stated and should not be construed as to this type of sequential for illustration purposes.For instance, in the VGA environment, but pin and display upgrade this table explicitly, and in the DVI environment, this type of changes maybe be also inessential.
Table 1
Note that above-mentioned horizontal blanking interval is more inessential under the situation of LCD, DLP escope etc., provide thus and sacrificed the chance that the horizontal blanking interval prolongs vertical blanking interval.In particular, in the CRT escope, this type of horizontal blanking is usually through increasing (for example, in 15% to 25% scope etc.) to allow to track again the place that begins of particular scan.For instance, the CRT escope can show X pixel of first row, but after this usage level blanking interval comes to be provided so that can show X pixel of another row the time of the beginning that tracks scan line again to display, and the rest may be inferred.
Correlation between equality #1 explanation horizontal blanking interval and the vertical blanking interval.
Equality #1
f
pix?=?(pixels_X-direction?+?HBI)?*?(pixels_Y-direction?+?VBI)?*?f
v
Wherein
f
Pix=pixel rate
Number of pixels in HBI=horizontal blanking interval
Number of pixels on pixels_X-direction=directions X (for predetermined resolution)
Associated pixel number in VBI=vertical blanking interval
Number of pixels (for predetermined resolution) on pixels_Y-direction=Y direction
f
v=refresh rate
Such as displaying, can sacrifice the horizontal blanking interval and may not influence pixel rate and refresh rate to be used to prolong vertical blanking interval (in particular, under the situation of LCD, DLP escope etc.).
Therefore, in one embodiment, the aforementioned sequential of table 1 can provide the alternative three-dimensional compatible sequential specification of 1280 * 1024 75Hz, and said alternative specification can coexist with existing VESA 1280 * 1024 75Hz sequential specifications.In this type of example embodiment; Existing 1280 * 1024 75Hz VESA sequential are used for 24.2% of up duration horizontal blanking and are used for vertical blanking with 3.9%, and three-dimensional compatible sequential will be used for vertical blanking and will be used for horizontal blanking less than 4% near 27% of up duration.
Fig. 4 show according to another embodiment be used to increase vertical blanking interval to be used to improve the method 400 of the viewing experience when utilizing anaglyph spectacles to watch displaying contents.Select as one, can under the situation of the sequential 200 of the computer system 100 of Figure 1B and/or Fig. 2, carry out this method 400.Yet, can want implementation method 400 in the environment any certainly.In addition, during following description, use the definition of being introduced in the preceding text.
Such as displaying, with low resolution display (for example, display 108 of Fig. 1 etc.) is set during use.Referring to operation 402.In addition, can move display at a predetermined velocity to be used to prolong vertical blanking interval.Note operation 404.Below state this type of technological instance.
Specifically, in an optional embodiment, can provide to be designed for 1600x1200 resolution but with the low resolution (display that for example, 1024x768) uses.If this class display is supported 1600x1200 resolution (according to the VESA standard) under 60 Hz, 162 Mpix/s (under the situation of any resolution) possibly can be reached so.Therefore, through sending 1024*768 pixel to display, can in 5.33 milliseconds (1144*768*6.173e-9), send entire image (supposing 100 pixel level blankings) with 162 MHz pixel clocks.Because per 16.66 milliseconds of images that receive 60 Hz, so vertical blanking interval can extend to 11.33 milliseconds (16.66-5.33).For this reason, each photochopper of a secondary anaglyph spectacles (for example, the anaglyph spectacles 111 of Fig. 1 etc.) can have 11.33 milliseconds to remain on open orientation during per 33.33 milliseconds, and 34% duty cycle (outside the scope of theoretical maximum 50%) is provided thus.
In one embodiment, the controller (for example, three-dimensional controller 119 of Fig. 1 etc.) that can be according to circumstances be coupled to display through utilization provides Fig. 3 aforementioned functional to Fig. 4.Under the situation of present embodiment, this quasi-controller can be used for signal in the cable that tap is fed to display is used for glasses (for example, anaglyph spectacles 111 of Fig. 1 etc.) with retrieval trigger message.Obtain in a left side/right eye photochopper of vertical synchronization and identification that this type of trigger message can be from cable and content associated information (for example, white line code etc.) or the control signal (for example, DDC signal etc.) that provides by software.
In another embodiment; Can the method 300 of Fig. 3 and the method 400 of Fig. 4 be provided through interrupting two I2C
interface line, said I2C
interface line delivers the EDID standard information usually.Controller is among the embodiment of microcontroller form therein, and this type of hardware can read original display EDID information and modified EDID information is presented to the computer system that is associated.In this type of embodiment, the driver that uses EDID information to calculate the sequential setting may not need to revise.
Fig. 5 shows the exemplary sequential 500 when utilizing anaglyph spectacles and LCD or analog to watch displaying contents, used of being used for according to another embodiment.Select as one, can under the situation of the sequential 200 of the computer system 100 of Figure 1B and/or Fig. 2, carry out this sequential 500.Yet, can want in the environment to use sequential 500 any certainly.
In the present embodiment, the mode that the displaying contents that sends to display in 502 in operation can be operated in 504 again and showed receives and cushions.Select as one, can reside in the display or the buffer memory in what its relevant position in office (for example, DRAM etc.) carries out this type of buffering through utilization.
Be used for the displaying contents of particular eye in case in operation 504, receive and cushion, just can it be sent to display from buffer, as operate further indication of institute in 504.For this reason, display can be described current specific display of just sending from buffer.Note operation 506.It should be noted that after sending and describing to be used for the displaying contents of particular eye, can keep this type of displaying contents by institute's exhibition method.
Through this design, the left eye photochopper and the right eye photochopper of a secondary anaglyph spectacles (for example, anaglyph spectacles 111 of Fig. 1 etc.) can be opened during the just maintained time cycle of corresponding display contents.Note operation 508 and 510 respectively.Through in operation 504, displaying contents being cushioned with aforementioned manner, can obtain displaying contents and pass cable arrival needed any tediously long time of buffer, therefore pixel clock is remained low.It in addition, when displaying contents being cushioned and be ready to show, can displaying contents be sent to display fast, so that can be held and show the long period to eyes separately.Therefore, can be through displaying contents being cushioned, avoids simultaneously the needs that increase the vertical blanking interval on the display interface device cable are waited the stabilization time that increases displaying contents with aforementioned manner.
Generally speaking, can cushion the displaying contents that is used for predetermined eyes that receives from content source till the complete image of the displaying contents that can obtain to be used for these eyes.Though this type of buffering takes place, but still can show the previous displaying contents that is used for another eyes.When this type of buffering completion and image stabilization, the complete image that can will be used for the displaying contents of these eyes in the duration of vertical blanking interval or for more time is sent to display from buffer.In addition, the maximum pixel speed that this type of transmission can display can be disposed in inside is carried out, so that vertical blanking interval can maximize.If this type of is too short at interval, can use so to receive temporarily and to store the extra buffering that the next one imports image into.For this reason, the eyes photochopper can be prolonged and the duration (and therefore maximizing screen intensity etc.) in the open orientation can be maintained.
Strictly speaking, select as one, can when at least one of photochopper is in the open orientation, just start the backlight of display.Can under the flicker or the situation backlight of rolling, use this characteristic.Under flicker situation backlight, backlight can the flicker at the time durations of (for example) 30%, but also can use light with triplication value, so that normal light output is provided.For this reason, can use eigen to avoid waste light (with the electric power that is associated) when photochopper cuts out, and further avoid overheated.
Though preceding text have been described various embodiment, should be appreciated that, its only by way of example rather than the restriction mode appear.For instance, stated in any one used preceding text of networking element want functional any one.Therefore, the range of preferred embodiment and scope should not receive the described example embodiment of preceding text any one limit, but should only define according to appended claims and equivalent thereof.
Claims (12)
1. system that is used to control stereo glasses shutters comprises:
With the display of buffer coupling, said buffer stores stereo content, and
Right eye photochopper and the left eye photochopper that controller, said controller are used to control anaglyph spectacles is to switch cutting out between orientation and the open orientation;
Wherein said system can operate so that the said right eye photochopper of said anaglyph spectacles and said left eye photochopper through control so that said right eye photochopper and said left eye photochopper remain on said closing in the orientation during measuring at the fixed time simultaneously;
Wherein said system can operate so that the said right eye photochopper of said anaglyph spectacles through control so that said right eye photochopper only first group of vertical blanking interval the duration be in the said open orientation, and the said left eye photochopper of said anaglyph spectacles through control so that said left eye photochopper only second group of vertical blanking interval the duration be in the said open orientation;
The control of wherein said right eye photochopper and said left eye photochopper permits watching the stereo content on the said display.
2. the system of claim 1 is wherein controlled the said right eye photochopper and the said left eye photochopper of said anaglyph spectacles independently.
3. the system of claim 1, first control signal that wherein is used to control said right eye photochopper and second control signal that is used to control said left eye photochopper to control independently the said right eye photochopper and the said left eye photochopper of said anaglyph spectacles.
4. the system of claim 1; Wherein utilize a plurality of signals to control the said right eye photochopper and the said left eye photochopper of said anaglyph spectacles, one in said a plurality of signals are converted to said right eye photochopper and said left eye photochopper simultaneously and saidly close the orientation and remain on said closing in the orientation.
5. the system of claim 1, wherein said controller is three-dimensional controller.
6. the system of claim 1, wherein said display comprises LCD.
7. the system of claim 1 wherein utilizes said buffer resident in the said display to cushion said stereo content.
8. the system of claim 1 wherein only one just starts the backlight of said display when being in the said open orientation in said photochopper.
9. method that is used to control stereo glasses shutters comprises:
With stereo content be stored in display-coupled buffer in;
On said display, show the said stereo content in the said buffer;
The right eye photochopper of control anaglyph spectacles is to switch cutting out between orientation and the open orientation; And
The left eye photochopper of controlling said anaglyph spectacles is to switch said cutting out between orientation and the said open orientation;
The said right eye photochopper of wherein said anaglyph spectacles and said left eye photochopper are through controlling so that said right eye photochopper and said left eye photochopper remain on said closing in the orientation during measuring at the fixed time simultaneously;
The said right eye photochopper of wherein said anaglyph spectacles through control so that said right eye photochopper only first group of vertical blanking interval the duration be in the said open orientation, and the said left eye photochopper of said anaglyph spectacles through control so that said left eye photochopper only second group of vertical blanking interval the duration be in the said open orientation;
The control of wherein said right eye photochopper and said left eye photochopper permits watching the stereo content on the said display.
10. method as claimed in claim 9 wherein cushions said stereo content and makes stereo content in the said buffer be able to show, can obtain displaying contents and pass cable to arrive needed any tediously long time of buffer low so that pixel clock is remained.
11. method as claimed in claim 9; The said stereo content that wherein is stored in the said buffer is ready to show; So that said stereo content apace from said buffer transfer to said display, so that it can be held and show the long period to eyes separately.
12. method as claimed in claim 9 is wherein stored said stereo content to increase the stabilization time that said stereo content can show on said display in said buffer.
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| US11/462,535 US8169467B2 (en) | 2006-03-29 | 2006-08-04 | System, method, and computer program product for increasing an LCD display vertical blanking interval |
| US11/462,529 US7724211B2 (en) | 2006-03-29 | 2006-08-04 | System, method, and computer program product for controlling stereo glasses shutters |
| US11/462,535 | 2006-08-04 |
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| CN2007800016296A Division CN101371292B (en) | 2006-03-29 | 2007-03-29 | System and method for controlling stereo glasses shutters |
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| CN101982978B true CN101982978B (en) | 2012-09-19 |
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| CN2007800016296A Active CN101371292B (en) | 2006-03-29 | 2007-03-29 | System and method for controlling stereo glasses shutters |
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| JP (1) | JP4846020B2 (en) |
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Also Published As
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|---|---|
| WO2007126904A3 (en) | 2008-08-28 |
| TW200819788A (en) | 2008-05-01 |
| JP2009531979A (en) | 2009-09-03 |
| WO2007126904A2 (en) | 2007-11-08 |
| CN101371292B (en) | 2010-12-22 |
| CN101982978A (en) | 2011-03-02 |
| EP1999740A4 (en) | 2009-11-11 |
| EP1999740A2 (en) | 2008-12-10 |
| TWI366679B (en) | 2012-06-21 |
| CN101371292A (en) | 2009-02-18 |
| TW201229565A (en) | 2012-07-16 |
| JP4846020B2 (en) | 2011-12-28 |
| CA2646439A1 (en) | 2007-11-08 |
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