CN102612838B - Three dimensional image displaying method, system, three dimensional television and glasses - Google Patents

Three dimensional image displaying method, system, three dimensional television and glasses Download PDF

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Publication number
CN102612838B
CN102612838B CN201080051916.XA CN201080051916A CN102612838B CN 102612838 B CN102612838 B CN 102612838B CN 201080051916 A CN201080051916 A CN 201080051916A CN 102612838 B CN102612838 B CN 102612838B
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glasses
scanning
eye
liquid crystal
signal
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CN102612838A (en
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刘卫东
乔明胜
陈兴锋
黄国鹏
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Hisense Visual Technology Co Ltd
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Qingdao Hisense Electronics Co Ltd
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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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • 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
    • 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]
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/024—Scrolling of light from the illumination source over the display in combination with the scanning of the display screen

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

A three dimensional (3D) image displaying method, a system, a 3D television and glasses are disclosed, wherein the three dimensional image displaying method includes: extracting a synchronous control signal from a 3D image signal, and generating a corresponding backlight drive signal; according to the backlight drive signal, when one or more regions in N regions, which are equally divided along the row direction in a liquid crystal display screen, complete a refresh response to current image field data of the left or right eye, controlling backlight regions corresponding to one or more regions to be illumined, and then to be turned off in a preset time range before the backlight regions are illumined; wherein, in the preset time range corresponding to any one backlight region is illumined, controlling the corresponding liquid crystal display screen region to only complete outputting of the image field data of the corresponding left or right eye.

Description

A kind of 3D rendering display packing, system, 3D TV and glasses
Technical field
The present invention relates to LCD TV field, relate in particular to a kind of 3D rendering display packing, system, 3D TV and glasses.
Background technology
The basic principle that realizes 3D demonstration is by optics or processing of circuit, the two width pictures with small parallax to be passed to respectively to left eye and right eye, and not to interfere with each other, thereby form stereo perception under corticocerebral synthesis.
At present, 3D Display Technique can be divided into spectacle and the large class of bore hole formula two, and wherein, spectacle 3D technology comprises: aberration formula 3D technology, polarization type 3D technology, active-shutter 3D technology.
The active-shutter 3D technology of take is example, it is mainly to realize 3D effect by improving the refresh rate of picture, video image is divided into two frame by frame, form two a series of paintings faces of corresponding left eye and right eye, by the cooperation of shutter type 3 D spectacles, make this two a series of paintings face enter respectively left and right eyes, finally synthetic 3D stereopsis in brain.
The advantage of active-shutter 3D technology is can realize full HD 3D effect and picture brightness to change littlely, and difficult point is that image frame shows and the mating of glasses folding, and needs image frame and 3D glasses to carry out Synchronization Control in practical application.
For LCDs, when the picture signal scanning of LCDs can not be carried out Synchronization Control with the switching of 3D glasses, the performance that 3D shows can be affected, and may occur crosstalking of left-and right-eye images, cannot reach good 3D display effect.
Summary of the invention
The above-mentioned technical problem of the present invention for existing in solution background technology, and a kind of 3D rendering display packing, system, 3D TV and glasses are proposed, can eliminate crosstalking of 3D procedure for displaying middle left and right eye pattern picture, improve 3D display effect.
Technical solution of the present invention is:
The embodiment of the present invention provides a kind of 3D rendering display packing, and described method comprises:
Extract the synchronous control signal in 3D rendering signal, and produce corresponding backlight drive signal;
According to described backlight drive signal, one or more regions in N the region of evenly dividing with the direction of row in LCDs complete after the refresh response of current left eye or eye image field data, control backlight area corresponding to described one or more region and light, and the preset time scope T before backlight area is subsequently lighted bL-scanningclose; Wherein, the described preset time scope T lighting in the arbitrary backlight area of correspondence bL-scanningin, control the output that corresponding LCDs region only completes the picture field data of corresponding left eye or right eye;
Described preset time scope t bL-scanning meet T BL - scanning ≤ T frame + T g 2 - g 3 - T g 1 - g 2 - n - 1 n · T lc - scanning ;
Wherein, the lasting opening time of the 3D glasses left side or the right eyeglass should be observed following formula:
T lc-scanning/n+T g1-g2+T glass-on≤T frame+T g2-g3+T lc-scanning/n；
Described T framerepresent the liquid crystal scanning frame cycle;
Described T lc-scanningexpression liquid crystal is the time to the last item line by article one line sweep;
Described T g1-g2represent that liquid crystal display screen image is changed to the response time of gray scale g2 by gray scale g1;
Described T g2-g3represent that liquid crystal display screen image is changed to the response time of gray scale g3 by gray scale g2;
Described T glass_onrepresent the time that 3D glasses left eye sheet or right eye sheet continue to open.
Preferably, described method also comprises:
According to described synchronizing signal, produce corresponding glasses and drive signal;
According to described glasses, drive signal, control the switching of the glasses left and right eyeglass of watching described 3D rendering, the opening time of the described glasses left side or the right eyeglass is the whole time period that in left eye or eye image signal output procedure, each backlight area is lighted successively.
Further, described method also comprises: within the scope of described preset time, control arbitrary row liquid crystal line in LCDs region corresponding to corresponding backlight area after the refresh response that completes left-eye image field data, start to carry out to extinguish before the refresh response of eye image field data, and after the refresh response that completes eye image field data, start to carry out to extinguish before the refresh response of left-eye image field data.
The television set showing for 3D rendering, comprising: LCDs unit, back light unit, receiving element and 3D indicative control unit; Wherein,
Described LCDs unit and back light unit, be evenly divided into N region by the direction with row;
Described receiving element, for receiving 3D rendering signal;
Described 3D indicative control unit comprises:
Liquid crystal drive subelement, for driving described LCDs unit to carry out picture field Refresh Data;
Backlight drive subelement, for extracting the synchronous control signal of described 3D rendering signal, produces corresponding backlight drive signal according to described synchronizing signal; According to described backlight drive signal, certain region in described LCDs unit completes after the refresh response of current left eye or eye image field data, the backlight area of controlling in back light unit corresponding to described certain region is lighted, and the preset time scope T before backlight area is subsequently lighted bL-scanningclose, wherein, the described preset time scope T lighting in the arbitrary backlight area of correspondence bL-scanningin, control the output that corresponding LCDs region only completes the picture field data of corresponding left eye or right eye;
Described preset time scope t bL-scanning meet T BL - scanning ≤ T frame + T g 2 - g 3 - T g 1 - g 2 - n - 1 n · T lc - scanning ;
Wherein, the lasting opening time of the 3D glasses left side or the right eyeglass should be observed following formula:
T lc-scanning/n+T g1-g2+T glass-on≤T frame+T g2-g3+T lc-scanning/n；
Described T framerepresent the liquid crystal scanning frame cycle;
Described T lc-scanningexpression liquid crystal is the time to the last item line by article one line sweep;
Described T g1-g2represent that liquid crystal display screen image is changed to the response time of gray scale g2 by gray scale g1;
Described T g2-g3represent that liquid crystal display screen image is changed to the response time of gray scale g3 by gray scale g2;
Described T glass_onrepresent the time that 3D glasses left eye sheet or right eye sheet continue to open.
Preferably, described backlight drive subelement, also for: within the scope of described preset time, control arbitrary row liquid crystal line in LCDs region corresponding to corresponding backlight area after the refresh response that completes left-eye image field data, start to carry out to extinguish before the refresh response of eye image field data, and after the refresh response that completes eye image field data, start to carry out to extinguish before the refresh response of left-eye image field data.
Preferably, described 3D indicative control unit, also comprises:
Glasses driven element unit, drives signal for produce corresponding glasses according to described synchronizing signal; According to described glasses, drive signal, control the switching of the glasses left and right eyeglass of watching described 3D rendering, the opening time of the described glasses left side or the right eyeglass is the whole time period that in left eye or eye image signal output procedure, each backlight area is lighted successively.
Preferably, described back light unit adopts LED light source.
For watching glasses for 3D rendering, comprising:
Open and close signal receiving unit, for receiving glasses, drive signal;
Open and close controlling unit; for driving signal according to described glasses; the switching of the glasses left and right eyeglass of described 3D rendering is watched in control; the opening time of the described glasses left side or the right eyeglass is the whole time period that in left eye or eye image signal output procedure, each backlight area is lighted successively; wherein; in the time period of lighting in the arbitrary backlight area of correspondence, control the output that corresponding LCDs region only completes the picture field data of corresponding left eye or right eye;
The lasting opening time of the described 3D glasses left side or the right eyeglass is observed following formula:
T lc-scanning/n+T g1-g2+T glass-on≤T frame+T g2-g3+T lc-scanning/n；
Described T framerepresent the liquid crystal scanning frame cycle;
Described T lc-scanningexpression liquid crystal is the time to the last item line by article one line sweep;
Described T g1-g2represent that liquid crystal display screen image is changed to the response time of gray scale g2 by gray scale g1;
Described T g2-g3represent that liquid crystal display screen image is changed to the response time of gray scale g3 by gray scale g2;
Described T glass_onrepresent the time that 3D glasses left eye sheet or right eye sheet continue to open.
Preferably, in the time period of lighting in arbitrary backlight area, arbitrary row liquid crystal line in LCDs region corresponding to corresponding backlight area after the refresh response that completes left-eye image field data, start to carry out to extinguish before the refresh response of eye image field data, and after the refresh response that completes eye image field data, start to carry out to extinguish before the refresh response of left-eye image field data.
A display system, comprising: for the display unit of 3D rendering demonstration with for watching the glasses of 3D rendering;
Described display unit comprises: LCDs unit, back light unit, receiving element and 3D indicative control unit; Wherein,
Described LCDs unit and back light unit, be evenly divided into N region by the direction with row;
Described receiving element, for receiving 3D rendering signal;
Described 3D indicative control unit comprises:
Liquid crystal drive subelement, for driving described LCDs unit to carry out picture field Refresh Data;
Backlight drive subelement, for extracting the synchronous control signal of described 3D rendering signal, produces corresponding backlight drive signal according to described synchronizing signal; According to described backlight drive signal, certain region in described LCDs unit completes after the refresh response of current left eye or eye image field data, the backlight area of controlling in back light unit corresponding to described certain region is lighted, and the preset time scope T before backlight area is subsequently lighted bL-scanningclose, wherein, the described preset time scope T lighting in the arbitrary backlight area of correspondence bL-scanningin, control the output that corresponding LCDs region only completes the picture field data of corresponding left eye or right eye;
Glasses driven element unit, drives signal for produce corresponding glasses according to described synchronizing signal;
Described glasses comprise:
Open and close signal receiving unit, for receiving glasses, drive signal;
Open and close controlling unit; for driving signal according to described glasses; the switching of the glasses left and right eyeglass of described 3D rendering is watched in control, and the opening time of the described glasses left side or the right eyeglass is the whole time period that in left eye or eye image signal output procedure, each backlight area is lighted successively;
Described preset time scope t bL-scanning meet T BL - scanning ≤ T frame + T g 2 - g 3 - T g 1 - g 2 - n - 1 n · T lc - scanning ;
Wherein, the lasting opening time of the 3D glasses left side or the right eyeglass should be observed following formula:
T lc-scanning/n+T g1-g2+T glass-on≤T frame+T g2-g3+T lc-scanning/n；
Described T framerepresent the liquid crystal scanning frame cycle;
Described T lc-scanningexpression liquid crystal is the time to the last item line by article one line sweep;
Described T g1-g2represent that liquid crystal display screen image is changed to the response time of gray scale g2 by gray scale g1;
Described T g2-g3represent that liquid crystal display screen image is changed to the response time of gray scale g3 by gray scale g2;
Described T glass_onrepresent the time that 3D glasses left eye sheet or right eye sheet continue to open.
Preferably, described backlight drive subelement, also for: within the scope of described preset time, control arbitrary row liquid crystal line in LCDs region corresponding to corresponding backlight area after the refresh response that completes left-eye image field data, start to carry out to extinguish before the refresh response of eye image field data, and after the refresh response that completes eye image field data, start to carry out to extinguish before the refresh response of left-eye image field data.
The application embodiment of the present invention, compares with solution in the past, at least has following outstanding advantages:
The embodiment of the present invention keeps the field frequency of picture signal constant, mode by backlight control realizes a left side, the timesharing of eye image shows, preset each region backlight continue the time of lighting, certain region in N the region of evenly dividing with the direction of row in LCDs completes after the refresh response of current left eye or eye image field data, controlling backlight area corresponding to this region lights, and the maintenance time of lighting is preset time value, , when a certain liquid crystal region starts to carry out right and left eyes image scanning switching, the backlight area that this liquid crystal region is corresponding is extinguished, thereby realize the separation of right and left eyes image frame, effectively solve the problem of left and right frame crosstalk.
Accompanying drawing explanation
Fig. 1 is that schematic diagram is divided in the region of LCDs and back light unit in the embodiment of the present invention;
Fig. 2 is the steps flow chart schematic diagram of a kind of 3D rendering display packing of the present invention embodiment;
Fig. 3 is LCDs refresh scan schematic diagram in the embodiment of the present invention;
Fig. 4 is the structural representation of a kind of television set embodiment showing for 3D rendering of the present invention;
Fig. 5 is that another kind of the present invention is for the structural representation of the television set embodiment of 3D rendering demonstration;
Fig. 6 is that the present invention is a kind of for watching the structural representation of the glasses embodiment of 3D rendering;
Fig. 7 is the structural representation of a kind of 3D rendering display system of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out to clear, complete description, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
In the basic principle of liquid crystal display, LCDs and back light unit are divided into a corresponding N region by the direction with row conventionally, as shown in Figure 1, because each liquid crystal display area comprises many liquid crystal lines, therefore, each two field picture of liquid crystal display forms ，Qie Yi behavior unit by several rows and drives successively.Liquid crystal has brightness and maintains characteristic, when n capable driven after, can maintain this brightness, until there is new drive.So when showing two adjacent two field picture, during such as n frame and (n+1) frame, having partial content in (n+1) two field picture is n frame.When showing 3D content, because picture material between adjacent two frames exists very big-difference, and need to give respectively left eye and right eye, therefore, left-and right-eye images mixed in the most of the time, human eye cannot be distinguished the picture material of right and left eyes, thereby causing that two intraoculars hold crosstalks, and image overlaps.
In order to eliminate crosstalking of above-mentioned left-and right-eye images, reach good 3D display effect, the embodiment of the present invention provides a kind of 3D rendering display packing, and as shown in Figure 2, the method comprises the following steps flow process:
Synchronous control signal in step 201, extraction 3D rendering signal, and produce corresponding backlight drive signal;
The received picture signal of display screen mainboard can be the 3D rendering signal of various forms;
After receiving 3D rendering signal, display screen mainboard can be converted to described 3D rendering signal low-voltage differential signal (Low-Voltage Differential Signaling, LVDS) after form, send into display screen drive plate (T_CON), drive the display screen time-division to show left-eye image signal and eye image signal;
Step 202, according to described backlight drive signal, one or more regions in N the region of evenly dividing with the direction of row in LCDs complete after the refresh response of current left eye or eye image field data, control backlight area corresponding to described one or more region and light, and the preset time scope before backlight area is subsequently lighted is closed; Wherein, within the scope of the described preset time of lighting in the arbitrary backlight area of correspondence, control the output that corresponding LCDs region only completes the picture field data of corresponding left eye or right eye.
Active-shutter 3D technology of the prior art adopts time-sharing procedure to realize the demonstration of 3D rendering, is mainly to realize 3D effect by improving the refresh rate of picture.By 3D display screen, image is divided into two frame by frame, form two a series of paintings faces of corresponding left eye and right eye, right and left eyes image is shown in turn according to sequential and be transferred in eyes, in actual applications, 3D display screen sequentially sends right and left eyes picture signal, and sending synchronous control signal, light valve spectacles receives the switching of controlling right and left eyes eyeglass after synchronous control signal, makes user's right and left eyes receive respectively right and left eyes picture signal.
Generally, the refreshing frequency of 3D display screen that is to say more than must reaching 120Hz, allows images of left and right eyes all receive the image of frequency more than 60Hz, and guarantee user sees the 3D rendering effect of glimmering continuously and not.
The embodiment of the present invention can keep the field frequency of picture signal constant, mode by backlight control realizes a left side, the timesharing of eye image shows, preset each region backlight continue the time of lighting, certain region in N the region of evenly dividing with the direction of row in LCDs completes after the refresh response of current left eye or eye image field data, controlling backlight area corresponding to this region lights, and the maintenance time of lighting is preset time value, , within the scope of the described preset time of lighting in the arbitrary backlight area of correspondence, control the output that corresponding LCDs region only completes the picture field data of corresponding left eye or right eye, thereby realize the separation of right and left eyes image frame, effectively solve the problem of left and right frame crosstalk.
In addition,, for spectacle 3D Display Technique, need to coordinate 3D glasses to watch 3D rendering.Therefore, also need to from 3D rendering signal, extract synchronous control signal, according to described synchronizing signal, produce corresponding glasses and drive signal; According to described glasses, drive signal, control the switching of the glasses left and right eyeglass of watching described 3D rendering, the opening time of the described glasses left side or the right eyeglass is the whole time period that in left eye or eye image signal output procedure, each backlight area is lighted successively.
According to described synchronous control signal, control the signal of LED driving and control the signal opening and closing to the glasses transmission wafer of watching described 3D rendering signal and synchronously produce, when opening right eye eyeglass, control closes left eyeglass lens, or, while opening left eyeglass lens, close right eye eyeglass.
For the ease of the clear concrete technical scheme of the present invention of describing, will carry out clear, complete description by specific embodiment below.
Embodiment mono-
The embodiment of the present invention realizes the separation of right and left eyes image frame by backlight scanning control method, effectively solve the problem of left and right frame crosstalk.
As shown in Figure 1, the schematic diagram of dividing for LCDs in the embodiment of the present invention and back light unit region.As shown in the drawing, LCDs and back light unit are divided into zone1, zone2, zone3 by the direction with row respectively ... ，Ge region, zonen n region is refreshed by timesharing and controls.
Conventionally, the division of backlight area is at least four regions.And the quantity of concrete zoning depends primarily on the response time of LCDs.The region that backlight area is divided is more, and the light efficiency of backlight can be higher, but the reduction of light output variable, brightness meeting reduces to some extent, and those skilled in the art can take in definite according to the different response time performances of LCDs.
In the embodiment of the present invention, backlightly can adopt LED(Light Emitting Diode, light-emitting diode) light source, comprise enhancement mode LED(Entangled Light Emitting Diode, ELED) light source.
Lower mask body introduces back light unit and LCDs in the embodiment of the present invention are how to realize Synchronization Control.
First, some parameters that occur in the embodiment of the present invention are carried out to understanding definitions:
The full-screen image of supposing initial LCDs is shown as the image that gray scale is g1, and when carrying out right and left eyes image refreshing, the first two field picture is that gray scale is the image of g2, and the second two field picture is that gray scale is the image of g3;
Image for the image of gray scale g1 to gray scale g2, then to the image of gray scale g3, is defined as follows parameter (be not same GTG for image, consider to take the response time that maximum response time or approximate maximum response time are inter frame image), wherein:
T framerepresent the liquid crystal scanning frame cycle;
T lc-scanningexpression liquid crystal is the time to the last item line by article one line sweep;
T bL-scanningwhat represent each LED-backlit region (zone1～zone n) continues the time of lighting;
T g1-g2represent that liquid crystal display screen image is changed to the response time of gray scale g2 by gray scale g1;
T g2-g3represent that liquid crystal display screen image is changed to the response time of gray scale g3 by gray scale g2;
T holdrepresent liquid crystal time in stable state after completing corresponding gray scale variation;
T glass_onrepresent the time that 3D glasses left eye sheet or right eye sheet continue to open.
As shown in Figure 3, be LCDs refresh scan schematic diagram, wherein, curve 1 represent the corresponding article one liquid crystal of first region of LCDs zone1 line complete gray scale g1 to gray scale g2 and by gray scale g2 the response curve to gray scale g3; Curve 2 represent the corresponding the last item liquid crystal of first region of LCDs zone1 line complete gray scale g1 to gray scale g2 and by gray scale g2 the response curve to gray scale g3; Curve 3 represent the corresponding the last item liquid crystal of last region zone n of LCDs line complete gray scale g1 to gray scale g2 and by gray scale g2 the response curve to gray scale g3.
When the corresponding the last item liquid crystal of first region zone1 line completes gray scale g1 to the response of gray scale g2, the liquid crystal molecule of this row subregion is when Hold state, at T lc-scanning/ n+T g1-g2constantly, first area zone1 backlight starts scanning, and continuing the time of lighting is T bL-scanning, then extinguish; When second the corresponding the last item liquid crystal of row subregion zone2 line completes gray scale g1 to the response of gray scale g2, the liquid crystal molecule of this row subregion is when Hold state, at (T lc-scanning/ n) * 2+T g1-g2constantly, second area zone2 backlight starts scanning, and continuing the time of lighting is T bL-scanning, then extinguish; When the corresponding the last item liquid crystal of last row subregion zone n line completes gray scale g1 to the response of gray scale g2, the liquid crystal molecule of this row subregion is when Hold state, at (T lc-scanning/ n) * n+T g1-g2constantly, n backlight region zone n starts scanning, and continuing the time of lighting is T bL-scanning, then extinguish; So far, LCDs completes gray scale g1 to one-period liquid crystal scanning demonstration and the scanning backlight demonstration of g2; And 3D-glasses opening time is the whole time period while lighting from zone1 to zone n backlight.For LCDs, gradation of image is consistent to the scanning motion of g2 by g1 with gradation of image to the sweeper brush new element of g3 by g2, at this, no longer repeats.
The gradation of image of LCDs of take is below refreshed as example to the scanning of g2 by g1, and the Synchronization Control process of back light unit and LCDs is described.
According to 3D, show the principle that right and left eyes separates, when the gradation of image that can draw LCDs completes by g1 to the variation of g2, the gradation of image that the time of lighting of backlight area zone1 should not extend to LCDs is the opening time of zone1 backlight during to g3 by g2,, within the scope of the described preset time of lighting in the arbitrary backlight area of correspondence, control the output that corresponding LCDs region only completes the picture field data of corresponding left eye or right eye.The gradation of image of corresponding LCDs is the opening time of zone1 backlight during to g3 by g2, and another lens of 3D glasses starts to open.When above-mentioned twice occur to intersect, a lens of 3D glasses will be seen the image of corresponding another lens, thereby causing that two intraoculars hold crosstalks, and image overlaps.Therefore, can draw following formula:
T lc-scanning/n+T g1-g2+T glass-on≤T frame+T g2-g3+T lc-scanning/n （1）
According to (1) formula, the acquisition of can deriving, the lasting opening time of the 3D glasses left side or the right eyeglass should be observed following formula:
T glass-on≤T frame+T g2-g3-T g1-g2 （2）
Simultaneously, in order to guarantee the display effect of 3D rendering, should control the opening of 3D glasses, the shut-in time strictly lights with corresponding backlight area, the shut-in time synchronizes and equate or approximately equal, otherwise may there is the phenomenon that top and the bottom regional luminance does not wait in the 3D rendering finally demonstrating.For fear of this defect, carried out again the following derivation of equation:
The moment that first backlight area zone1 opens is T lc-scanning/ n+T g1-g2, the moment that last backlight area zone n opens is (T lc-scanning/ n) * n+T g1-g2, therefore, from zone1 to the zone n backlight lightening time as shown in Equation (3):
T glass - on = T lc - scanning n · n - T lc - scanning n + T BL - scanning = n - 1 n · T lc - scanning + T BL - scanning - - - ( 3 )
In conjunction with (2) formula and (3) formula, can obtain:
T BL - scanning ≤ T frame + T g 2 - g 3 - T g 1 - g 2 - n - 1 n · T lc - scanning - - - ( 4 )
Simultaneously, for reaching good display effect, main image boundary gray scale that employing scanning backlight may introduce (ghost) phenomenon of undergoing mutation of removing, within the scope of the preset time that continues to light in arbitrary backlight area, arbitrary row liquid crystal line in LCDs region corresponding to this backlight area after the refresh response that completes left-eye image field data, start to carry out to extinguish before the refresh response of eye image field data, and after the refresh response that completes eye image field data, start to carry out to extinguish before the refresh response of left-eye image field data.In conjunction with Fig. 3, take backlight area zone1 as example, the time that backlight area zone1 continues to light should be finished before g3 response by gray scale g2 at the first row liquid crystal line, thereby obtained formula (5).Certainly, if ghost is controlled to certain interval of standing, formula (5) result can correspondingly expand.
T BL-scanning≤T hold-T lc-scanning/n （5）
In conjunction with formula (3), (5), can show that the time that each regional sustained backlight is lighted is shown in formula (6), get the minimal time value in (3) formula and (5) formula:
T BL-scanning≤min{T frame+T g2-g3-T g1-g2×2,T hold-T lc-scanning/n} （6）
The continuing of this backlight area lighted time signal and can pass through FPGA(Field-Programmable Gate Array, field programmable gate array) chip sends timing control signal backlight and completes, and by this chip, the LED light source output drive signal of each backlight area is controlled to it and lights or close.
In addition, to glasses, sending the mode that above-mentioned eyeglass opens and closes signal comprises: the mode of infrared, radio frequency or bluetooth.
The object of the embodiment of the present invention is by LED-backlit and LCDs synchronous flashing, while making right and left eyes image reach 3D glasses, by right and left eyes 3D rendering separately, finally in human brain, synthesizes 3D rendering.Overlapping less of right and left eyes 3D rendering, 3D effect is better, and 3D right and left eyes image ghost image (3D crosstalk) is less.Meanwhile, the synchronous modulation of LED-backlit and LCDs will promote the moving image display performance of liquid crystal display greatly, is conducive to continuity, the process of 3D moving image.
As can be seen here, by preset backlight area, continue to light time T bL-scanning, liquid crystal lines all in zone1 region is all completed after the refresh response of current left eye or eye image field data, then the backlight of zone1 region opened, now, only zone1 shows image, other parts are black; In guaranteeing zone2 region, all liquid crystal lines all complete after the refresh response of current left eye or eye image field data, then the backlight of zone2 region opened, the like, the image that completes view picture picture shows.Thereby, in the situation that keep the field frequency of picture signal constant, guarantee the phenomenon that liquid crystal there will not be left-and right-eye images to crosstalk in each viewing area in each visible demonstration.
The LCDs application embodiment of the present invention of 120Hz, can realize the same 3D display effect of LCDs of same 240Hz.Meanwhile, adopt the LCDs of 240Hz or the panel of other scanning frequencys to coordinate the embodiment of the present invention also can reach the effect of improving 3D display effect.Visible, be no matter that the 3D of the LCDs of 120Hz realizes, the still 3D performance improvement of the LCDs of higher display frequency, the present invention has good compatibility.
Embodiment bis-
Corresponding above-mentioned 3D rendering display packing, the embodiment of the present invention also provides a kind of television set showing for 3D rendering, as shown in Figure 4, described television set 40 comprises: LCDs unit 401, back light unit 402, receiving element 403 and 3D indicative control unit 404; Wherein,
Described LCDs unit 401 and back light unit 402, be evenly divided into N region by the direction with row, as shown in Figure 1;
Described receiving element 403, for receiving 3D rendering signal;
The received picture signal of receiving element 403 can be the 3D rendering signal of various forms;
After receiving 3D rendering signal, receiving element 403 is sent into display screen drive plate (T_CON) after described 3D rendering signal can being converted to low-voltage differential signal form, drives the television display screen time-division to show left-eye image signal and eye image signal;
Described 3D indicative control unit 404 comprises:
Liquid crystal drive subelement 4041, for driving described LCDs unit 401 to carry out picture field Refresh Data;
Backlight drive subelement 4042, for extracting the synchronous control signal of described 3D rendering signal, produces corresponding backlight drive signal according to described synchronizing signal; According to described backlight drive signal, certain region in described LCDs unit 401 completes after the refresh response of current left eye or eye image field data, the backlight area of controlling in back light unit corresponding to this region is lighted, and the preset time scope before backlight area is subsequently lighted is closed, wherein, within the scope of the described preset time of lighting in the arbitrary backlight area of correspondence, control the output that corresponding LCDs region only completes the picture field data of corresponding left eye or right eye.
The 3D television set that the embodiment of the present invention provides can keep the field frequency of picture signal constant, the timesharing that mode by backlight control realizes left-and right-eye images shows, by preset each region backlight of backlight drive subelement, continue the time of lighting, certain region in N the region of evenly dividing with the direction of row in LCDs completes after the refresh response of current left eye or eye image field data, control backlight area corresponding to this region and light, and the maintenance time of lighting is preset time value T bL-scanning, that is, when a certain liquid crystal region starts to carry out right and left eyes image scanning switching, the backlight area that this liquid crystal region is corresponding is extinguished, thereby realizes the separation of right and left eyes image frame, effectively solves the problem of left and right frame crosstalk.
For reaching good display effect, main image boundary gray scale that employing scanning backlight may introduce (ghost) phenomenon of undergoing mutation of removing, described backlight drive subelement, also for: within the scope of described preset time, control arbitrary row liquid crystal line in LCDs region corresponding to corresponding backlight area after the refresh response that completes left-eye image field data, start to carry out to extinguish before the refresh response of eye image field data, and after the refresh response that completes eye image field data, start to carry out to extinguish before the refresh response of left-eye image field data.
In addition,, for spectacle 3D Display Technique, above-mentioned 3D television set need to coordinate 3D glasses to watch 3D rendering.Therefore, in another kind of 3D television set, as shown in Figure 5, described 3D indicative control unit 404 also comprises: glasses driven element unit 4043, drives signal for produce corresponding glasses according to described synchronizing signal; According to described glasses, drive signal, control the switching of the glasses left and right eyeglass of watching described 3D rendering, the opening time of the described glasses left side or the right eyeglass is the whole time period that in left eye or eye image signal output procedure, each backlight area is lighted successively.
In this embodiment, need glasses driven element unit to extract synchronous control signal from 3D rendering signal, according to described synchronizing signal, produce corresponding glasses and drive signal; According to described glasses, drive signal, control the switching of the glasses left and right eyeglass of watching described 3D rendering, the opening time of the described glasses left side or the right eyeglass is the whole time period that in left eye or eye image signal output procedure, each backlight area is lighted successively.
By preset backlight area, continue to light time T bL-scanningopening time with the glasses left side or the right eyeglass, liquid crystal lines all in zone1 region is all completed after the refresh response of current left eye or eye image field data, then the backlight of zone1 region opened, now, only zone1 shows image, and other parts are black; In guaranteeing zone2 region, all liquid crystal lines all complete after the refresh response of current left eye or eye image field data, then the backlight of zone2 region opened, the like, the image that completes view picture picture shows.Thereby, in the situation that keep the field frequency of picture signal constant, guarantee the phenomenon that liquid crystal there will not be left-and right-eye images to crosstalk in each viewing area in each visible demonstration.
Described back light unit can adopt LED light source, comprises enhancement mode LED light source.
The continuing of this backlight area lighted time signal and can send timing control signal backlight by fpga chip and complete, and by this chip, the LED light source output drive signal of each backlight area controlled to it and lights or close.
In addition, to glasses, sending the mode that above-mentioned eyeglass opens and closes signal comprises: the mode of infrared, radio frequency or bluetooth.
Embodiment tri-
Correspondingly, it is a kind of for watching the glasses of 3D rendering that the embodiment of the present invention also provides, and as shown in Figure 6, described glasses 60 comprise:
Open and close signal receiving unit 601, for receiving glasses, drive signal;
Open and close controlling unit 602, for driving signal according to described glasses, the switching of the glasses left and right eyeglass of described 3D rendering is watched in control, the opening time of the described glasses left side or the right eyeglass is the whole time period that in left eye or eye image signal output procedure, each backlight area is lighted successively, wherein, in the time period of lighting in the arbitrary backlight area of correspondence, control the output that corresponding LCDs region only completes the picture field data of corresponding left eye or right eye.
These glasses, in order to coordinate the television set showing for 3D rendering in embodiment bis-, are watched 3D rendering to realize.
In addition, in the time period of lighting in arbitrary backlight area, arbitrary row liquid crystal line in LCDs region corresponding to corresponding backlight area after the refresh response that completes left-eye image field data, start to carry out to extinguish before the refresh response of eye image field data, and after the refresh response that completes eye image field data, start to carry out to extinguish before the refresh response of left-eye image field data.
The embodiment of the present invention provide for watching the glasses of 3D rendering can be under the control of the television set showing for 3D rendering, the opening and closing that guarantee right and left eyes eyeglass keep synchronizeing with the switching of LED-backlit and the scanning of LCDs, thereby by right and left eyes 3D rendering separately, finally in human brain, synthesize without the 3D rendering of crosstalking while making right and left eyes image reach 3D glasses.
Wherein, opening and closing signal receiving unit can receive the eyeglass that the television set that shows for 3D rendering sends to glasses in the mode of infrared, radio frequency or bluetooth and open and close signal.
Embodiment tetra-
The embodiment of the present invention provides a kind of 3D rendering display system, and as shown in Figure 7, this system comprises: for the display unit 70 of 3D rendering demonstration with for watching the glasses 71 of 3D rendering;
Described display unit 70 comprises: LCDs unit 701, back light unit 702, receiving element 703 and 3D indicative control unit 704; Wherein,
Described LCDs unit 701 and back light unit 702, be evenly divided into N region by the direction with row, as shown in Figure 1;
Described receiving element 703, for receiving 3D rendering signal;
Described 3D indicative control unit 704 comprises:
Liquid crystal drive subelement 7041, for driving described LCDs unit to carry out picture field Refresh Data;
Backlight drive subelement 7042, for extracting the synchronous control signal of described 3D rendering signal, produces corresponding backlight drive signal according to described synchronizing signal; According to described backlight drive signal, certain region in described LCDs unit completes after the refresh response of current left eye or eye image field data, the backlight area of controlling in back light unit corresponding to described certain region is lighted, and the preset time scope before backlight area is subsequently lighted is closed, wherein, within the scope of the described preset time of lighting in the arbitrary backlight area of correspondence, control the output that corresponding LCDs region only completes the picture field data of corresponding left eye or right eye;
Glasses driven element unit 7043, drives signal for produce corresponding glasses according to described synchronizing signal;
Described glasses 71 comprise:
Open and close signal receiving unit 710, for receiving glasses, drive signal;
Open and close controlling unit 711, for driving signal according to described glasses, the switching of the glasses 71 left and right eyeglasses of described 3D rendering is watched in control, and the opening time of described glasses 71 left sides or the right eyeglass is the whole time period that in left eye or eye image signal output procedure, each backlight area is lighted successively.
It should be noted that, described backlight drive subelement, can also be for: within the scope of described preset time, control arbitrary row liquid crystal line in LCDs region corresponding to corresponding backlight area after the refresh response that completes left-eye image field data, start to carry out to extinguish before the refresh response of eye image field data, and after the refresh response that completes eye image field data, start to carry out to extinguish before the refresh response of left-eye image field data.By further restriction backlight area continue the time of lighting, realize to remove the undergo mutation defect of (ghost) phenomenon of image boundary gray scale that employing scanning backlight may introduce.
By preset backlight area, continue to light time T bL-scanning, liquid crystal lines all in zone1 region is all completed after the refresh response of current left eye or eye image field data, then the backlight of zone1 region opened, now, only zone1 shows image, other parts are black; In guaranteeing zone2 region, all liquid crystal lines all complete after the refresh response of current left eye or eye image field data, then the backlight of zone2 region opened, the like, the image that completes view picture picture shows.Thereby, in the situation that keep the field frequency of picture signal constant, guarantee the phenomenon that liquid crystal there will not be left-and right-eye images to crosstalk in each viewing area in each visible demonstration.
Described back light unit adopts LED light source, comprises enhancement mode LED light source.
The continuing of this backlight area lighted time signal and can send timing control signal backlight by fpga chip and complete, and by this chip, the LED light source output drive signal of each backlight area controlled to it and lights or close.
In addition, to glasses, sending the mode that above-mentioned eyeglass opens and closes signal comprises: the mode of infrared, radio frequency or bluetooth.
The LCDs application embodiment of the present invention of 120Hz, can realize the same 3D display effect of LCDs of same 240Hz.Meanwhile, adopt the LCDs of 240Hz or the panel of other scanning frequencys to coordinate the embodiment of the present invention also can reach the effect of improving 3D display effect.Visible, be no matter that the 3D of the LCDs of 120Hz realizes, the still 3D performance improvement of the LCDs of higher display frequency, the present invention has good compatibility.
For system and device embodiment, because it is substantially corresponding to embodiment of the method, so describe fairly simplely, relevant part is referring to the part explanation of embodiment of the method.System embodiment described above is only schematic, the wherein said module as separating component explanation can or can not be also physically to separate, the parts that show as module can be or can not be also physical modules, can be positioned at a place, or also can be distributed on a plurality of mixed-media network modules mixed-medias.Can select according to the actual needs some or all of module wherein to realize the object of the present embodiment scheme.Those of ordinary skills, in the situation that not paying creative work, are appreciated that and implement.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can be in the situation that do not depart from the spirit or scope of the embodiment of the present invention, realization in other embodiments.Therefore, the embodiment of the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (11)

1. a 3D rendering display packing, is characterized in that, described method comprises:
Extract the synchronous control signal in 3D rendering signal, and produce corresponding backlight drive signal;
According to described backlight drive signal, one or more regions in N the region of evenly dividing with the direction of row in LCDs complete after the refresh response of current left eye or eye image field data, control backlight area corresponding to described one or more region and light, and the preset time scope T before backlight area is subsequently lighted bL-scanningclose; Wherein, the described preset time scope T lighting in the arbitrary backlight area of correspondence bL-scanningin, control the output that corresponding LCDs region only completes the picture field data of corresponding left eye or right eye;
Described preset time scope T bL-scanningmeet
Figure FDA0000398150640000011
Wherein, the lasting opening time of the 3D glasses left side or the right eyeglass should be observed following formula:
T lc-scanning/n+T g1-g2+T glass-on≤T frame+T g2-g3+T lc-scanning/n；
Described T framerepresent the liquid crystal scanning frame cycle;
Described T lc-scanningexpression liquid crystal is the time to the last item line by article one line sweep;
Described T g1-g2represent that liquid crystal display screen image is changed to the response time of gray scale g2 by gray scale g1;
Described T g2-g3represent that liquid crystal display screen image is changed to the response time of gray scale g3 by gray scale g2;
Described T glass_onrepresent the time that 3D glasses left eye sheet or right eye sheet continue to open.
2. 3D rendering display packing according to claim 1, is characterized in that, described method also comprises:
According to described synchronizing signal, produce corresponding glasses and drive signal;
According to described glasses, drive signal, control the switching of the glasses left and right eyeglass of watching described 3D rendering, the opening time of the described glasses left side or the right eyeglass is the whole time period that in left eye or eye image signal output procedure, each backlight area is lighted successively.
3. 3D rendering display packing according to claim 1 and 2, it is characterized in that, described method also comprises: within the scope of described preset time, control arbitrary row liquid crystal line in LCDs region corresponding to corresponding backlight area after the refresh response that completes left-eye image field data, start to carry out to extinguish before the refresh response of eye image field data, and after the refresh response that completes eye image field data, start to carry out to extinguish before the refresh response of left-eye image field data.
4. the television set showing for 3D rendering, is characterized in that, described television set comprises: LCDs unit, back light unit, receiving element and 3D indicative control unit; Wherein,
Described LCDs unit and back light unit, be evenly divided into N region by the direction with row;
Described receiving element, for receiving 3D rendering signal;
Described 3D indicative control unit comprises:
Liquid crystal drive subelement, for driving described LCDs unit to carry out picture field Refresh Data;
Backlight drive subelement, for extracting the synchronous control signal of described 3D rendering signal, produces corresponding backlight drive signal according to described synchronizing signal; According to described backlight drive signal, certain region in described LCDs unit completes after the refresh response of current left eye or eye image field data, the backlight area of controlling in back light unit corresponding to described certain region is lighted, and the preset time scope T before backlight area is subsequently lighted bL-scanningclose, wherein, the described preset time scope T lighting in the arbitrary backlight area of correspondence bL-scanningin, control the output that corresponding LCDs region only completes the picture field data of corresponding left eye or right eye;
Described preset time scope T bL-scanningmeet
Figure FDA0000398150640000021
Wherein, the lasting opening time of the 3D glasses left side or the right eyeglass should be observed following formula:
T lc-scanning/n+T g1-g2+T glass-on≤T frame+T g2-g3+T lc-scanning/n；
Described T framerepresent the liquid crystal scanning frame cycle;
Described T lc-scanningexpression liquid crystal is the time to the last item line by article one line sweep;
Described T g1-g2represent that liquid crystal display screen image is changed to the response time of gray scale g2 by gray scale g1;
Described T g2-g3represent that liquid crystal display screen image is changed to the response time of gray scale g3 by gray scale g2;
Described T glass_onrepresent the time that 3D glasses left eye sheet or right eye sheet continue to open.
5. the television set that 3D rendering according to claim 4 shows, it is characterized in that, described backlight drive subelement, also for: within the scope of described preset time, control arbitrary row liquid crystal line in LCDs region corresponding to corresponding backlight area after the refresh response that completes left-eye image field data, start to carry out to extinguish before the refresh response of eye image field data, and after the refresh response that completes eye image field data, start to carry out to extinguish before the refresh response of left-eye image field data.
6. the television set showing according to the 3D rendering described in claim 4 or 5, is characterized in that, described 3D indicative control unit, also comprises:
Glasses driven element unit, drives signal for produce corresponding glasses according to described synchronizing signal; According to described glasses, drive signal, control the switching of the glasses left and right eyeglass of watching described 3D rendering, the opening time of the described glasses left side or the right eyeglass is the whole time period that in left eye or eye image signal output procedure, each backlight area is lighted successively.
7. the television set that 3D rendering according to claim 6 shows, is characterized in that, described back light unit adopts LED light source.
8. for watching glasses for 3D rendering, it is characterized in that, described glasses comprise:
Open and close signal receiving unit, for receiving glasses, drive signal;
Open and close controlling unit, for driving signal according to described glasses, the switching of the glasses left and right eyeglass of described 3D rendering is watched in control, the opening time of the described glasses left side or the right eyeglass is the whole time period that in left eye or eye image signal output procedure, each backlight area is lighted successively, wherein, in the time period of lighting in the arbitrary backlight area of correspondence, control the output that corresponding LCDs region only completes the picture field data of corresponding left eye or right eye;
The lasting opening time of the described 3D glasses left side or the right eyeglass is observed following formula:
T lc-scanning/n+T g1-g2+T glass-on≤T frame+T g2-g3+T lc-scanning/n；
Described T framerepresent the liquid crystal scanning frame cycle;
Described T lc-scanningexpression liquid crystal is the time to the last item line by article one line sweep;
Described T g1-g2represent that liquid crystal display screen image is changed to the response time of gray scale g2 by gray scale g1;
Described T g2-g3represent that liquid crystal display screen image is changed to the response time of gray scale g3 by gray scale g2;
Described T glass_onrepresent the time that 3D glasses left eye sheet or right eye sheet continue to open.
9. according to claim 7 for watching the glasses of 3D rendering, it is characterized in that, in the time period of lighting in arbitrary backlight area, arbitrary row liquid crystal line in LCDs region corresponding to corresponding backlight area after the refresh response that completes left-eye image field data, start to carry out to extinguish before the refresh response of eye image field data, and after the refresh response that completes eye image field data, start to carry out to extinguish before the refresh response of left-eye image field data.
10. a 3D rendering display system, is characterized in that, described system comprises: for the display unit of 3D rendering demonstration with for watching the glasses of 3D rendering;
Described display unit comprises: LCDs unit, back light unit, receiving element and 3D indicative control unit; Wherein,
Described LCDs unit and back light unit, be evenly divided into N region by the direction with row;
Described receiving element, for receiving 3D rendering signal;
Described 3D indicative control unit comprises:
Liquid crystal drive subelement, for driving described LCDs unit to carry out picture field Refresh Data;
Backlight drive subelement, for extracting the synchronous control signal of described 3D rendering signal, produces corresponding backlight drive signal according to described synchronizing signal; According to described backlight drive signal, certain region in described LCDs unit completes after the refresh response of current left eye or eye image field data, the backlight area of controlling in back light unit corresponding to described certain region is lighted, and the preset time scope T before backlight area is subsequently lighted bL-scanningclose, wherein, the described preset time scope T lighting in the arbitrary backlight area of correspondence bL-scanningin, control the output that corresponding LCDs region only completes the picture field data of corresponding left eye or right eye;
Glasses driven element unit, drives signal for produce corresponding glasses according to described synchronizing signal;
Described glasses comprise:
Open and close signal receiving unit, for receiving glasses, drive signal;
Open and close controlling unit, for driving signal according to described glasses, the switching of the glasses left and right eyeglass of described 3D rendering is watched in control, and the opening time of the described glasses left side or the right eyeglass is the whole time period that in left eye or eye image signal output procedure, each backlight area is lighted successively;
Described preset time scope T bL-scanningmeet
Figure FDA0000398150640000041
Wherein, the lasting opening time of the 3D glasses left side or the right eyeglass should be observed following formula:
T lc-scanning/n+T g1-g2+T glass-on≤T frame+T g2-g3+T lc-scanning/n；
Described T framerepresent the liquid crystal scanning frame cycle;
Described T lc-scanningexpression liquid crystal is the time to the last item line by article one line sweep;
Described T g1-g2represent that liquid crystal display screen image is changed to the response time of gray scale g2 by gray scale g1;
Described T g2-g3represent that liquid crystal display screen image is changed to the response time of gray scale g3 by gray scale g2;
Described T glass_onrepresent the time that 3D glasses left eye sheet or right eye sheet continue to open.
11. 3D rendering display systems according to claim 10, it is characterized in that, described backlight drive subelement, also for: within the scope of described preset time, control arbitrary row liquid crystal line in LCDs region corresponding to corresponding backlight area after the refresh response that completes left-eye image field data, start to carry out to extinguish before the refresh response of eye image field data, and after the refresh response that completes eye image field data, start to carry out to extinguish before the refresh response of left-eye image field data.
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