CN102244800A - Automatic calibration shutter type 3D glasses synchronization method - Google Patents
Automatic calibration shutter type 3D glasses synchronization method Download PDFInfo
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- CN102244800A CN102244800A CN2011101867405A CN201110186740A CN102244800A CN 102244800 A CN102244800 A CN 102244800A CN 2011101867405 A CN2011101867405 A CN 2011101867405A CN 201110186740 A CN201110186740 A CN 201110186740A CN 102244800 A CN102244800 A CN 102244800A
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Abstract
The invention discloses an automatic calibration shutter type 3D glasses synchronization method. The method comprises the following steps that: when there is no synchronization signal, a timing mode is adopted in the shutter type 3D glasses to carry out a lens state switching in every video frame period; a display terminal sends a synchronization signal during left and right eye video frame switching every several periods; after the shutter type 3D glasses receives the synchronization signal, a lens switching time is adjusted so as to align a video frame switching waveform of the display terminal and simultaneously an automatic calibration algorithm is executed to adjust a timer period of the shutter type 3D glasses so as to match the period of the display terminal. By using the invention, a complete synchronization between the shutter type 3D glasses and the display terminal can be realized; crosstalk phenomenon, such as obscuring, double image and the like, can be eliminated; good 3D display effects can be reached.
Description
Technical field
The present invention relates to 3D optometric technology field, relate in particular to a kind of fast gate-type 3D glasses method for synchronous of automatic calibration.
Background technology
Fast gate-type 3D glasses can allow the screen on plane produce stereoeffect, and its course of work is as follows: screen can be shown to the picture that left eye is watched earlier, and at this moment fast gate-type glasses can be synchronously cover spectators' right eye, are equivalent to put on a black eye cover to right eye.Then, screen can switch to the picture of watching to right eye fast, and at this moment fast gate-type glasses can be cut the left eye that changes into spectators and cover.This handoff procedure replaces very fastly, and per second can reach 120 times even more, therefore can't discover about this to human eye and change.
For the function that realizes that active shutter glasses blocks spectators' right and left eyes in turn, common 3D glasses are used one deck liquid crystal layer and are reached top said " eyeshade " function that covers left eye or right eye, during this layer liquid crystal no power is transparent, will turn black after the energising.By the control of circuit to the eyeglass power supply open and close of the liquid crystal glasses left and right sides, thereby it is black entirely to make one of them eyeglass energized control this eyeglass, so that cover spectators' eyes, thereby it is transparent making another eyeglass deenergization control this eyeglass, so that the image that another is seen to its this soon, and eyeglass frequency in accordance with regulations in the left and right sides is switched.
As synchronous bridge between fast gate-type 3D glasses and screen, a signal emission device is set usually, allow display terminal (film, TV, computer etc.) be transferred to fast gate-type glasses and should cover the information that left eye still is a right eye now.If the folding and the left and right sides image of fast gate-type 3D glasses are not exclusively synchronous, then the scenery that left eye can be seen right eye might appear, and right eye also can be seen the scenery of left eye, it is crosstalk phenomenon, so not only 3D effect is difficult to reach, also can occur bluring, ghost phenomena, very uncomfortable when the user watches, so are very crucial technology fully synchronously to fast gate-type 3D glasses.
In the prior art, realize that synchronous basic thought is: display terminal only sends synchronizing signal number when a kind of state (left eye or right eye), 3D glasses end only need switch to corresponding states when receiving synchronizing signal, and can in regular time after the signal interruption, switch and get final product, glasses are not according to the timer of oneself when having synchronizing signal to interrupt, carry out the switching (left eye turn-offs, and right eye is opened, and is perhaps opposite) of an eyeglass state regularly in each video frame period.But in esse problem is, because the deviation of single-chip microcomputer crystal oscillator, the cycle of the cycle that glasses switch and the frame of video of televising may there are differences, can not be synchronously fully always.
Summary of the invention
The object of the present invention is to provide the fast gate-type 3D glasses of a kind of automatic calibration method for synchronous, 3D glasses switching cycle and display terminal presentation of video frames cycle that the solution prior art causes because of single-chip microcomputer crystal oscillator deviation can not synchronous fully defectives.
The fast gate-type 3D glasses of a kind of automatic calibration method for synchronous, this method may further comprise the steps:
During no synchronizing signal, fast gate-type 3D glasses adopt timing mode to carry out the switching of an eyeglass state in every video frame period;
Every several cycles, display terminal sends synchronizing signal when the images of left and right eyes frame of video is switched;
After fast gate-type 3D glasses receive synchronizing signal, adjust eyeglass switching time, carry out automatic calibration algorithm simultaneously and adjust the timer cycle of fast gate-type 3D glasses and be complementary with cycle with display terminal to align with the frame of video switching waveform of display terminal.
Purpose of the present invention can also further realize by following technical measures:
The fast gate-type 3D glasses of aforementioned automatic calibration method for synchronous, wherein calibration algorithm is as follows automatically: after fast gate-type 3D glasses receive synchronizing signal, read timing value, if timing value greater than base value, then increases timing value; If timing value less than base value, then reduces timing value; Base value is that display terminal sends synchronizing signal read time between the timing value after fast gate-type 3D glasses are received synchronizing signal.
The fast gate-type 3D glasses of aforementioned automatic calibration method for synchronous, wherein the send mode of synchronizing signal is an infrared mode.
The fast gate-type 3D glasses of aforementioned automatic calibration method for synchronous, wherein the send mode of synchronizing signal is a RF-wise.
The fast gate-type 3D glasses of aforementioned automatic calibration method for synchronous, wherein the send mode of synchronizing signal is a bluetooth approach.
Compared with prior art, the invention has the beneficial effects as follows: fast gate-type 3D glasses and display terminal can be realized fully synchronously, and crosstalk phenomenons such as elimination is fuzzy, ghost image reach good 3D display effect.
Description of drawings
Fig. 1 is an embodiment of the invention display terminal flow chart;
Fig. 2 is the fast gate-type 3D glasses of an embodiment of the invention workflow diagrams;
Fig. 3 is an embodiment of the invention method for synchronous oscillogram.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Specific embodiment described herein only is used to explain the present invention, and is not used in qualification the present invention.
In embodiments of the present invention, adopted automatic adjustment algorithm to adjust the cycle of the timer cycle of 3D glasses with the coupling display terminal, details are as follows.
Be the display terminal flow chart of the embodiment of the invention as shown in Figure 1, concrete steps are:
Step 11: initialization;
Step 12: enable to interrupt;
Step 13: wait for producing the frame of video handoff;
Step 14: after the frame of video handoff produced, interruption times added 1;
Step 15: whether judge interruption times greater than set point, set point is generally 8 to 10 times;
Step 16: if interruption times greater than set point, then sends synchronizing signal, interruption times zero clearing simultaneously.Wherein, the send mode of synchronizing signal can be infrared, radio frequency and bluetooth approach.
Be the fast gate-type 3D glasses end workflow diagram of the embodiment of the invention as shown in Figure 2, details are as follows:
Step 21: initialization;
Step 22: enable to interrupt and open timer;
Step 23: wait for and interrupt producing;
Step 24: when central stopping pregnancy was given birth to, inquiry was interrupted;
Step 25: if timer interrupts the switching right and left lens;
Step 26: if synchronizing signal interrupts, then adjust eyeglass switching time aliging, and carry out that the timer cycle of 3D glasses is adjusted in calibration automatically and the cycle of display terminal is complementary with the display terminal waveform;
Step 27: after calibration is achieved in that the 3D glasses receive synchronizing signal automatically, read the value of timer immediately,, then increase the timer timing value if the value of timer, illustrates that 3D glasses crystal oscillator frequency is faster than display terminal crystal oscillator frequency greater than base value T-base; If the value of timer, illustrates that 3D glasses crystal oscillator frequency is slower than display terminal crystal oscillator frequency less than base value T-base, then reduce the timer timing value.Base value T-base is that display terminal sends synchronizing signal read time between the timing value after fast gate-type 3D glasses are received synchronizing signal.
Under perfect condition, the waveform of 3D glasses and display terminal should be synchronous all the time; But in fact, because the deviation of single-chip microcomputer crystal oscillator, the cycle of the cycle that glasses switch and the frame of video of televising may there are differences, can not be synchronously fully always, so a kind of fast gate-type 3D glasses method for synchronous of automatic calibration need be provided, eliminate 3D glasses switching cycle and the different defective of display terminal presentation of video frames cycle possibility that the crystal oscillator deviation causes, 3D glasses and display terminal can be realized fully synchronously.
As shown in Figure 3, at the O point, the waveform of 3D glasses and display terminal is fully synchronous, receives synchronizing signal at A point 3D glasses, and the value that reads timer equals base value T-base, need not calibrate automatically.Receive synchronizing signal at B point 3D glasses, the value Tb that reads timer needs to carry out automatic calibration algorithm, the cycle that increases timer greater than base value T-base; And receiving synchronizing signal at C point 3D glasses, the value Tc that reads timer also needs to carry out automatic calibration algorithm less than base value T-base, reduces the cycle of timer, is complementary with the cycle with display terminal.
In addition to the implementation, the present invention can also have other execution modes, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of requirement of the present invention.
Claims (5)
1. calibrate fast gate-type 3D glasses method for synchronous automatically for one kind, it is characterized in that this method may further comprise the steps:
During no synchronizing signal, fast gate-type 3D glasses adopt timing mode to carry out the switching of an eyeglass state in every video frame period;
Every several cycles, display terminal sends synchronizing signal when the images of left and right eyes frame of video is switched;
After fast gate-type 3D glasses receive synchronizing signal, adjust eyeglass switching time, carry out automatic calibration algorithm simultaneously and adjust the timer cycle of fast gate-type 3D glasses and be complementary with cycle with display terminal to align with the frame of video switching waveform of display terminal.
2. the fast gate-type 3D glasses of automatic calibration as claimed in claim 1 method for synchronous is characterized in that described automatic calibration algorithm is as follows: after fast gate-type 3D glasses receive synchronizing signal, read timing value, if timing value greater than base value, then increases timing value; If timing value less than base value, then reduces timing value; Base value is that display terminal sends synchronizing signal read time between the timing value after fast gate-type 3D glasses are received synchronizing signal.
3. the fast gate-type 3D glasses of automatic calibration as claimed in claim 1 or 2 method for synchronous is characterized in that the send mode of described synchronizing signal is an infrared mode.
4. the fast gate-type 3D glasses of automatic calibration as claimed in claim 1 or 2 method for synchronous is characterized in that the send mode of described synchronizing signal is a RF-wise.
5. the fast gate-type 3D glasses of automatic calibration as claimed in claim 1 or 2 method for synchronous is characterized in that the send mode of described synchronizing signal is a bluetooth approach.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101867405A CN102244800A (en) | 2011-07-05 | 2011-07-05 | Automatic calibration shutter type 3D glasses synchronization method |
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| CN2011101867405A CN102244800A (en) | 2011-07-05 | 2011-07-05 | Automatic calibration shutter type 3D glasses synchronization method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102710954A (en) * | 2012-05-17 | 2012-10-03 | 深圳Tcl新技术有限公司 | Method for synchronizing 3D (three dimensional) display equipment and glasses and 3D display equipment |
| CN102833567A (en) * | 2012-09-13 | 2012-12-19 | 江苏亿成光电科技有限公司 | Driving method for shutter 3D (three-dimensional) spectacles |
| CN103139582A (en) * | 2011-11-22 | 2013-06-05 | 群光电子股份有限公司 | Shutter switch timing adjusting device and adjusting method thereof |
| CN103475890A (en) * | 2013-09-02 | 2013-12-25 | 深圳Tcl新技术有限公司 | 3D (three-dimensional) glasses and anti-interference method thereof |
| CN103760674A (en) * | 2011-12-31 | 2014-04-30 | 四川虹欧显示器件有限公司 | Active shutter-type 3D image quality improvement method and system |
| WO2015010457A1 (en) * | 2013-07-23 | 2015-01-29 | 深圳市华星光电技术有限公司 | Shutter glasses, and control system and method for controlling shutter glasses |
| CN115209127A (en) * | 2022-07-07 | 2022-10-18 | 深圳市灿影计算机有限公司 | Synchronization system of 3D display device and glasses |
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| CN101900885A (en) * | 2009-05-25 | 2010-12-01 | 索尼公司 | Synchronizing circuit that can in shutter glasses, use and method |
| US20110001808A1 (en) * | 2009-06-01 | 2011-01-06 | Bit Cauldron Corporation | Method of Stereoscopic Synchronization of Active Shutter Glasses |
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| CN1960183A (en) * | 2005-10-31 | 2007-05-09 | 盛群半导体股份有限公司 | Automatic adjusted oscillator with high accuracy |
| CN101900885A (en) * | 2009-05-25 | 2010-12-01 | 索尼公司 | Synchronizing circuit that can in shutter glasses, use and method |
| US20110001808A1 (en) * | 2009-06-01 | 2011-01-06 | Bit Cauldron Corporation | Method of Stereoscopic Synchronization of Active Shutter Glasses |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103139582A (en) * | 2011-11-22 | 2013-06-05 | 群光电子股份有限公司 | Shutter switch timing adjusting device and adjusting method thereof |
| CN103139582B (en) * | 2011-11-22 | 2015-05-27 | 群光电子股份有限公司 | Shutter switch timing adjusting device and adjusting method thereof |
| CN103760674A (en) * | 2011-12-31 | 2014-04-30 | 四川虹欧显示器件有限公司 | Active shutter-type 3D image quality improvement method and system |
| CN102710954A (en) * | 2012-05-17 | 2012-10-03 | 深圳Tcl新技术有限公司 | Method for synchronizing 3D (three dimensional) display equipment and glasses and 3D display equipment |
| CN102710954B (en) * | 2012-05-17 | 2015-09-30 | 深圳Tcl新技术有限公司 | The synchronous method of 3D display device and glasses and 3D display device |
| CN102833567A (en) * | 2012-09-13 | 2012-12-19 | 江苏亿成光电科技有限公司 | Driving method for shutter 3D (three-dimensional) spectacles |
| WO2015010457A1 (en) * | 2013-07-23 | 2015-01-29 | 深圳市华星光电技术有限公司 | Shutter glasses, and control system and method for controlling shutter glasses |
| CN103475890A (en) * | 2013-09-02 | 2013-12-25 | 深圳Tcl新技术有限公司 | 3D (three-dimensional) glasses and anti-interference method thereof |
| CN103475890B (en) * | 2013-09-02 | 2016-09-21 | 深圳Tcl新技术有限公司 | The anti-interference method of 3D glasses and 3D glasses |
| CN115209127A (en) * | 2022-07-07 | 2022-10-18 | 深圳市灿影计算机有限公司 | Synchronization system of 3D display device and glasses |
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Application publication date: 20111116 |