CN102316334B - three-dimensional picture display control device and method - Google Patents
three-dimensional picture display control device and method Download PDFInfo
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- CN102316334B CN102316334B CN201010225170.1A CN201010225170A CN102316334B CN 102316334 B CN102316334 B CN 102316334B CN 201010225170 A CN201010225170 A CN 201010225170A CN 102316334 B CN102316334 B CN 102316334B
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Abstract
The present invention relates to three-dimensional picture display control device and method, this display control method comprises: receive a picture input signal, and wherein this picture input signal has one first renewal frequency; One sampling rate conversion is carried out to this picture input signal and produces a picture output signal, wherein this picture output signal has one second renewal frequency, this second renewal frequency is higher than this first renewal frequency, and this picture output signal comprises one first picture signal, one the one VBI interval, one second picture signal, one the 2nd VBI interval, one the 3rd picture signal and one the 3rd VBI interval; During a VBI interval with this second picture signal of part, export a left eye mirror control signal; And during part the 3rd picture signal and the 3rd VBI interval, export a right eye mirror control signal.
Description
Technical field
The present invention relates to display unit, be especially applied to control method and the device of 3-D display.
Background technology
Old 3D picture display, mainly realizes on the screen of CRT.The display mode of CRT, for lining by line scan, therefore when use shutter glasses covers picture, only allows independent one to arrive the picture scanned soon and do not have too large problem.Two each comfortable corresponding scanning pictures do to switch and can reach two pictures differences and form three-dimensional 3D picture at brain.Arrive in the application of liquid crystal display, picture upgrades owing to can continue to be presented at screen does, if so do the switching of glasses with the display mode of old CRT, can on left (right side) eye scanning picture, seeing the residual picture of the right side (left side) eye, causing brain easily to occur ghost when reappearing 3D picture.
In one prior art (U.S. Patent Publication No. US2007/0229395A1), propose the way utilizing VBI (Vertical Blank Interval) interval.Its major way is that the region namely upgraded, closes the eyeglass of two in picture display; By the time VBI region, when picture is stability state, just opens wherein eyeglass at a glance, allows an eye accept picture signal, like this two alternately.This kind of way accepts the signal of picture in order to there be time enough by eyes, needs additionally to be strengthened by the white space between picture, produces different new timing specifications.But the method for above-mentioned traditional display 3D picture, no matter be the output for display end or the input of panel end, all needs to use the sequential of special requirement just can complete.The method of above-mentioned traditional display 3D picture, for display controller (DisplayController) or panel (Panel) manufacturer, all must redesign and begin to meet this special requirement.For system assembles manufacturer, because specification is not identical, interelement cannot be shared, so add the cost of the stock that gets the raw materials ready.
Therefore, need an effective method to realize right and left eyes respectively for some time for complete viewable pictures, do not need the time span additionally strengthening VBI to realize simultaneously.In other words, owing to not needing the time span additionally strengthening VBI, no matter therefore be the output for display end or the input of panel end, the sequential of general requirements (be namely existing specification, industry regular size) all can be used namely can to complete.
Summary of the invention
Therefore, one of the object of the invention is to propose a kind of three-dimensional picture display control device and method, and realizing right and left eyes is respectively complete viewable pictures for some time, does not need the time span additionally strengthening VBI to realize simultaneously.
Therefore, one of the object of the invention is to propose a kind of three-dimensional picture display control device and method, owing to not needing the time span additionally strengthening VBI, no matter therefore be the output for display end or the input of panel end, the sequential of general requirements all can be used namely can to complete.
Therefore, one of the object of the invention is to propose a kind of three-dimensional picture display control device and method, to solve the problem of above-mentioned prior art.
According to one embodiment of the present of invention, this display control method comprises: receive a picture input signal, and wherein, this picture input signal has one first renewal frequency; One sampling rate conversion is carried out to this picture input signal, to produce a picture output signal, wherein, this picture output signal has one second renewal frequency, this second renewal frequency is higher than this first renewal frequency, and this picture output signal comprises one first picture signal, one the one VBI interval, one second picture signal, one the 2nd VBI interval, one the 3rd picture signal and one the 3rd VBI interval; During a VBI interval with this second picture signal of part, export a left eye mirror control signal; And during part the 3rd picture signal and the 3rd VBI interval, export a right eye mirror control signal.
By the following embodiments of the invention explanation of reading and with reference to each accompanying drawing, effect that those skilled in the art can be easier to understand object of the present invention, technology contents, feature and realize.
Accompanying drawing explanation
Fig. 1 is the relative timing schematic diagram of picture signal and the images of left and right eyes mirror control signal utilizing sampling rate to change according to of the present invention;
Fig. 2 is the implementing circuit schematic diagram changed according to sampling rate of the present invention.
Main element symbol description
L1 first left picture
R1 first right picture
First picture of L1Top first left picture
Second picture of L1Bottom first left picture
First picture of R1Top first right picture
Second picture of R1Bottom first right picture
VBI VBI interval
210 display controllers
220 internal memories
Embodiment
Please consider the accompanying drawing of this case in light of actual conditions to read detailed description below, wherein, this case accompanying drawing in the illustrated manner, introduces the various different embodiment of the present invention, and for understanding how to realize the present invention.Embodiments provide sufficient content, implement the embodiment disclosed by this case for those skilled in the art of the present technique, or implement according to the content disclosed by this case the embodiment that derives.It is noted that, those embodiment not mutual exclusions to each other, and section Example can be done suitably to combine with other one or more embodiment, to form new embodiment, that is enforcement of the present invention is not limited to following disclosed embodiment.
General traditional 3D picture is that images of left and right eyes respectively accounts for a picture, and as shown in Figure 1a, therefore this specification carries out explanation of the present invention for this traditional 3D picture.Fig. 1 is the relative timing schematic diagram of picture signal and the images of left and right eyes mirror control signal utilizing sampling rate to change according to of the present invention.For Fig. 1 a, in order to realize the frame updating frequency of 60Hz, when images of left and right eyes respectively needs a picture, need the form exporting 120Hz renewal frequency.Now old VBI display mode, needs the display speed of whole picture to improve, with the displaying time required for squeezed, improves the time span of blank parts, make 3D glasses show the picture of right and left eyes.If the scanning frequency of picture to be added the speed of 1/2, for Fig. 1 b, exactly the renewal frequency of picture is brought up to 180Hz.And sampling rate conversion (frame rate conversion) for this reason known by technical field, and there is many implementing circuits and execution mode in existing file, out of focus for avoiding causing this technical characteristic, so omit at this.A kind of common mode is only provided at this.Such as: generally speaking, sampling rate conversion (frame rate conversion) device comprises a display controller and a picture buffer (frame buffer) completes jointly, as shown in Figure 2, one picture signal with the speed write memory 220 (such as many horizontal line buffers (line buffer) or a picture buffer (frame buffer)) of 120Hz, and is read this picture signal with the speed of 180Hz from picture buffer (frame buffer) by such as display controller 210.Certainly, also internal memory 220 can be placed in display controller 210 or outward and hang over display controller 210.This internal memory 220 can be the internal memory of the various types such as DRAM, SDRAM.
The scanning frequency of picture is added the speed of 1/2, for Fig. 1 b, exactly the renewal frequency of picture is brought up to the way of 180Hz, can make, in the time of display two pictures originally, 3 pictures (new renewal frequency is essentially 1.5 times of former renewal frequency) can be shown.The configuration of these 3 pictures is as Fig. 1 b indicates, and the 1st is identical with the picture of the 2nd with the picture of the 3rd and 120Hz the 1st, only in centre this, the first half gets left eye picture, and Lower Half gets right eye picture.When the 1st picture display is complete, just there is complete left eye picture, therefore before the 2nd blank parts until repeat to upgrade the picture of the first half, all rest on complete left eye picture, now glasses all can be opened left eyeglass and accept complete picture by left eye, this kind of way of the present invention just has time enough to accept the signal of picture by left eye, occurs ghost so can not cause when reappearing 3D picture.For display controller, in this stage, display controller between the first half picture of the 2nd, exports left eye crystal control signal, accepts complete picture to open left eyeglass by left eye after the 1st picture terminates.Identical reason, during to the Lower Half of the 3rd picture, until the beginning of the 4th picture, be all that right eyeglass can open the time allowing right eye accept picture, same reason, this kind of way of the present invention just has time enough to accept the signal of picture by right eye.For display controller, in this stage, display controller in the 3rd picture display to middle between the first half picture of the 4th, export right eye crystal control signal, accept complete picture to open right eyeglass by right eye.This kind of way of the present invention is utilized just to have time enough to accept the signal of picture by eyes, so brain can not be caused to occur ghost when reappearing 3D picture.
Due to this kind of way of the present invention, do not need the time span additionally strengthening VBI, meet existing specification (industry regular size) so can complete.
In addition, picture broadcast mode of the present invention still has another benefit, is the sequential that can use old Reduce Blanking form.Even if panel itself does not provide the sequential of VBI compatibility, the renewal frequency that this kind of mode can be utilized original sequential to be reduced to 2/3 shows.The renewal frequency of such as 120Hz, can show at the 3D of 40Hz as this sequential.
But those skilled in the art of the present technique without prejudice under purport of the present invention, according to the content disclosed by this case, can do impartial change to enforcement of the present invention and modify.Such as: the 2nd picture must be not necessarily upper 1/2 picture of the 1st for upper 1/2 picture in Figure 1b, and also can be changing into 1/3 picture, as long as allow left eye, right eye have time enough can accept the signal of picture, and VBI interval meets existing specification.In other words, the scanning frequency of original picture is accelerated necessity restriction of the speed non-invention of 1/2, as long as the quickening of the scanning frequency of original picture being made to meet allows left eye, right eye have time enough can accept the signal of picture, and VBI interval meets existing specification.
As described above, be only the preferred embodiments of the present invention, when not limiting scope of the invention process with foregoing, namely all equivalences done according to the present patent application the scope of the claims and invention description content change and modify, and all still belong within patent covering scope of the present invention.
Claims (4)
1. a display control method, the method comprises:
Receive a picture input signal, wherein, described picture input signal has one first renewal frequency;
One sampling rate conversion is carried out to described picture input signal, to produce a picture output signal, wherein, described picture output signal has one second renewal frequency, described second renewal frequency is higher than described first renewal frequency, described picture output signal comprises one first picture signal, one the one VBI interval, one second picture signal, one the 2nd VBI interval, one the 3rd picture signal, and one the 3rd VBI interval, wherein, described first picture signal and described 3rd picture signal are respectively for the left eye picture signal of left eye viewing and the right eye picture signal for right eye viewing, described second picture signal is that described first picture signal and described 3rd picture signal are respectively got incorporating aspects and formed,
During a described VBI interval and described second picture signal of part, export a left eye mirror control signal; And
During described 3rd picture signal of part and described 3rd VBI interval, export a right eye mirror control signal.
2. display control method according to claim 1, wherein, described second renewal frequency is 1.5 times of described first renewal frequency.
3. a display control unit, this display control unit comprises:
One display controller, receive a picture input signal, one sampling rate conversion is carried out to described picture input signal, to produce a picture output signal, wherein, described picture input signal has one first renewal frequency, described picture output signal has one second renewal frequency, described second renewal frequency is higher than described first renewal frequency, described picture output signal comprises one first picture signal, one the one VBI interval, one second picture signal, one the 2nd VBI interval, one the 3rd picture signal, and one the 3rd VBI interval, wherein, described first picture signal and described 3rd picture signal are respectively for the left eye picture signal of left eye viewing and the right eye picture signal for right eye viewing, described second picture signal is that described first picture signal and described 3rd picture signal are respectively got incorporating aspects and formed,
Wherein, during a described VBI interval and described second picture signal of part, described display controller exports a left eye mirror control signal; And
Wherein, during described 3rd picture signal of part and described 3rd VBI interval, described display controller exports a right eye mirror control signal.
4. display control unit according to claim 3, wherein, described second renewal frequency is 1.5 times of described first renewal frequency.
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| CN101697595A (en) * | 2009-09-11 | 2010-04-21 | 青岛海信电器股份有限公司 | Method for displaying 3D image, television and glasses |
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| US7724211B2 (en) * | 2006-03-29 | 2010-05-25 | Nvidia Corporation | System, method, and computer program product for controlling stereo glasses shutters |
| KR101362771B1 (en) * | 2008-09-17 | 2014-02-14 | 삼성전자주식회사 | Apparatus and method for displaying stereoscopic image |
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| CN101697595A (en) * | 2009-09-11 | 2010-04-21 | 青岛海信电器股份有限公司 | Method for displaying 3D image, television and glasses |
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