CN102270441A - Method and device for reducing ghost images and crosstalk of 3D (Three-dimensional) television - Google Patents
Method and device for reducing ghost images and crosstalk of 3D (Three-dimensional) television Download PDFInfo
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- CN102270441A CN102270441A CN2011102288325A CN201110228832A CN102270441A CN 102270441 A CN102270441 A CN 102270441A CN 2011102288325 A CN2011102288325 A CN 2011102288325A CN 201110228832 A CN201110228832 A CN 201110228832A CN 102270441 A CN102270441 A CN 102270441A
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Abstract
The invention discloses a method for reducing ghost images and crosstalk of a 3D television. The method comprises the steps of: driving a liquid-crystal screen to continuously display a same frame picture for n times; judging whether the proportion ps of a screen area, which meets liquid-crystal display response time 1r, occupying a full screen is larger than or equal to 1 or not when the same frame picture is displayed for n times; and turning on a full-screen backlight to display the same frame picture when ps is larger than or equal to 1, or else, turning on the backlight in a strip-by-strip way by adopting a backlight strip scanning approach so as to display the same frame picture. The invention further provides a corresponding device. According to the method and the device for reducing the ghost images and the crosstalk of the 3D television, provided by the invention, the ghost images and the crosstalk of a shutter glass type 3D television can be reduced.
Description
Technical field
The present invention relates to field of liquid crystal display, specially refer to method and device that a kind of 3D of reduction ghost image of the tv is harassed.
Background technology
The 3D TV of main flow is divided into polarization type and initiatively fast gate-type at present, and both all need the user to wear the 3D glasses.
The former polarization type 3D TV, employing is pasted on liquid crystal display very, the light polarizing film of idol line interlacing, its odd-numbered line pad pasting sees through clockwise polarized light, the even number line pad pasting sees through anticlockwise polarization light, the user wears by clockwise circular polarization left eyeglass lens and anticlockwise circular polarization right eye eyeglass, like this, user's transmitted through glasses, what left eye was seen is the left image content of odd-numbered line on the screen, can't see the right image content of even number line, and right eye is seen is the right image content of even number line on the screen, can't see the left image content of odd-numbered line, thereby sees the 3D effect of video.Because what adopt is the circular polarization glasses, the picture that the user sees is harassed and (is referred to that left eye sees the right picture of video, right eye is seen video left side picture, also be Cross-talk) less, but because every eyes can only be seen corresponding odd-numbered line or even number line image, so the picture vertical definition will reduce half.
The initiatively fast gate-type 3D TV of the latter shows left picture and right picture at liquid crystal display sequentially, launches the synchronizing signal of display frame simultaneously by synchronous transmitter, after shutter glasses is received synchronizing signal, control by turns that left eyeglass is opened, right eyeglass closes and right eyeglass is opened, left eyeglass closes, so, when showing left picture on the liquid crystal display, left side eyeglass is opened, and right eyeglass is closed, in like manner, when showing right picture on the liquid crystal display, left side eyeglass is closed, and right eyeglass is opened, thereby the user sees the 3D effect of video.Because the each demonstration of liquid crystal display is view picture left side picture or right picture, so the sharpness of picture is good, do not suffer a loss, still, because the intrinsic response time l of liquid crystal in the LCDs
r, in left picture, right picture Alternation Display process, if liquid crystal not deflection fully as yet, the user will see the former frame image content, cause ghost image to crosstalk.
Summary of the invention
Method and the device of fundamental purpose of the present invention for providing a kind of 3D of reduction ghost image of the tv to harass reduces fast gate-type 3D ghost image of the tv and harasses.
The present invention proposes the method that a kind of 3D of reduction ghost image of the tv is harassed, and comprising:
Driving LCDs shows same frame picture n time continuously;
When described same frame picture shows for the n time, judge and satisfy liquid crystal response time l
rScreen area account for full frame ratio p
sWhether more than or equal to 1;
p
s〉=1 o'clock, then open full frame backlightly showing described same frame picture, otherwise it is backlight to show described same frame picture to adopt backlight scan mode to open one by one.
Preferably, described p
sObtain by following formula:
p
s=(F
r* T
g-1-L
r* F
r) * 100%, F
rBe the refreshing frequency of LCDs, T
gBe the switching time of the corresponding shutter glasses of LCDs.
Preferably, describedly carry out backlight scanning and comprise:
According to described p
sCalculating need be lighted backlight bar number;
From top to bottom, one by one, backlight of described number lighted in circulation.
Preferably, opening full frame backlightly or to adopt backlight scan mode to open one by one backlight when showing described same frame picture, strengthening the backlight drive electric current.
Preferably, show continuously during n time that the deflection polarity of keeping liquid crystal begins to show up to the next frame picture at described same frame picture.
The present invention also proposes the device that a kind of 3D of reduction ghost image of the tv is harassed, and comprising:
Driver module is used to drive LCDs same frame picture is shown n time continuously;
Judge module when being used for the n time demonstration of described same frame picture, being judged and is satisfied liquid crystal response time l
rScreen area account for full frame ratio p
sWhether more than or equal to 1;
Light module, be used for p
s〉=1 o'clock, then open full frame backlightly showing described same frame picture, otherwise it is backlight to show described same frame picture to adopt backlight scan mode to open one by one.
Preferably, described judge module specifically is used for obtaining p by following formula
s:
p
s=(F
r* T
g-1-L
r* F
r) * 100%, F
rBe the refreshing frequency of LCDs, T
gBe the switching time of the corresponding shutter glasses of LCDs.
Preferably, the described module of lighting comprises:
Computing unit is used for according to described p
sCalculating need be lighted backlight bar number;
Scanning element, be used for from top to bottom, one by one, circulation lights backlight of described number.
Preferably, described device also comprises:
The backlight drive module is used for opening full frame backlightly or to adopt backlight scan mode to open one by one backlight when showing described same frame picture, strengthens the backlight drive electric current.
Preferably, described device also comprises:
Deflection module is used for showing continuously during n time at described same frame picture, and the deflection polarity of keeping liquid crystal begins to show up to the next frame picture.
Method and device that a kind of 3D of reduction ghost image of the tv that the present invention proposes is harassed, make LCDs after enough response time, the deflection of acquisition finishes, open the user of allowing backlight again and see picture, so, the user just can not see the content of a last picture again, thereby the ghost image that greatly reduces fast gate-type 3D TV is crosstalked.
Description of drawings
Fig. 1 the present invention reduces the schematic flow sheet of method one embodiment that the 3D ghost image of the tv harasses;
Fig. 2 the present invention reduces the schematic flow sheet of backlight scanning among method one embodiment that the 3D ghost image of the tv harasses;
Fig. 3 the present invention reduces a sequential chart among method one embodiment that the 3D ghost image of the tv harasses;
Fig. 4 the present invention reduces the sequential chart of backlight scanning among method one embodiment that the 3D ghost image of the tv harasses;
Fig. 5 the present invention reduces the schematic flow sheet of the another embodiment of method that the 3D ghost image of the tv harasses;
Fig. 6 the present invention reduces the structural representation of device one embodiment that the 3D ghost image of the tv harasses;
Fig. 7 the present invention reduces the structural representation of lighting module among device one embodiment that the 3D ghost image of the tv harasses;
Fig. 8 the present invention reduces the structural representation of the another embodiment of device that the 3D ghost image of the tv harasses.
The realization of the object of the invention, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
With reference to Fig. 1, propose the present invention and reduce method one embodiment that the 3D ghost image of the tv is harassed, comprising:
Step S10, driving LCDs show same frame picture n time continuously;
When step S11, the n time demonstration of described same frame picture, judge and satisfy liquid crystal response time l
rScreen area account for full frame ratio p
sWhether more than or equal to 1;
Step S12, p
s〉=1 o'clock, then open full frame backlightly showing described same frame picture, otherwise it is backlight to show described same frame picture to adopt backlight scan mode to open one by one.
With reference to Fig. 2, step S12 can further comprise:
Step S121, according to described p
sCalculate rule number backlight;
Step S122, from top to bottom, one by one, circulation lights backlight of described rule number backlight.
In order to reserve enough response times to LCDs, need to improve the refreshing frequency of LCDs, just directly brush the right picture signal of next frame after promptly can not having brushed frame left side picture signal, and the mode that adopts the brush multipass is brushed same frame picture continuously, and the refresh time accumulation of multipass same frame is to reach liquid crystal response time l
rRequirement.Present LCDs, when every frame refreshes, liquid crystal will change deflection polarity to solve the ghost problem, and in the present embodiment, when the same frame picture of brush is with the accumulative total refresh time continuously, also need do respective handling to liquid crystal deflection polarity, since after the liquid crystal deflection reversing, liquid crystal response time l
rTo restart to calculate, therefore, in the process of the picture refreshing of multipass same number of frames continuously, keep the current deflection polarity of liquid crystal, only when refreshing the picture of different frame, change the deflection polarity of liquid crystal.This is because when refreshing identical picture, though deflection polarity does not change, picture is identical, can not produce ghost, and when the picture of different frame switches, just changes the deflection polarity of liquid crystal, avoids ghost.
The switch controlling signal frequency that the 3D glasses are set is Gf, and the refreshing frequency of LCDs is F
r, time of each eyeglass switch of 3D glasses then
(formula 1), the refresh time that LCDs is each
(formula 2).Finish the picture of n same number of frames of continuous brush in now needing during an eyeglass is opened, so,
(formula 3).Every n the same frame picture of liquid crystal brushed, and then the deflection polarity of liquid crystal changes once.
When beginning to brush the n time same frame picture, time that n-1 time accumulated before
(formula 4) in the time of can obtaining beginning to brush the n time thus, satisfies liquid crystal response time l
rScreen area account for full frame number percent
(formula 5).
Satisfy liquid crystal response time l
rScreen area can present to the user and watch and avoided harassing of former frame picture.Work as p
s, illustrate beginning to brush before the n time that it is that deflection finishes that the liquid crystal of whole frame picture correspondence has obtained enough response times all, can the disposable full frame user of presenting to watch at 〉=1 o'clock.Work as p
s, then has only p at＜1 o'clock
sThe liquid crystal deflection of the screen area correspondence of ratio finishes, and can be presented to the user and watch, and whenever refreshes the screen area that the picture of same percentage will just refresh again then and presents to the user.For p
s〉=1 situation can adopt full frame backlight control switch to realize, in the time will presenting picture and watch to the user, open full frame backlight, user's visible picture content.Work as p
s＜1 o'clock, can close full frame backlightly, also can adopt backlight scan mode to present picture, the rule backlight is counted L
nCan calculate by following formula and learn:
(formula 6).Be noted that, if L
nNon-integer need round and adds 1 again.When backlight scanning, the refreshing frequency of image content is P
b=(1/L
n) * 100% (formula 7), in order to reach minimum ghost image crosstalk effect, backlight of only lighting correct position closed and closed backlight of opening, so from top to bottom, one by one, circulation lights.
Shorten the problem that the brightness bring reduces in order to solve the backlight lightening time, can open full frame backlightly or to adopt backlight scan mode to open one by one backlight with during showing described same frame picture, the mode that strengthens the backlight drive electric current promotes brightness.
In the present embodiment, make LCDs obtaining enough response times, after liquid crystal deflection finishes, open the user of allowing backlight again and see picture, so, the user just can not see the content of a last picture again, thereby the ghost image that greatly reduces fast gate-type 3D TV is crosstalked.
With reference to Fig. 3, Fig. 4, be that example further specifies present embodiment with backlight scan mode and full mode backlight respectively, Figure 3 shows that the sequential chart of LCDs drive signal (shows signal), 3D glasses switch synchronizing signal and backlight switch control signal, wherein, T
WRFor refreshing right image time, T
WLFor refreshing left image time, T
RBe the frame period, T
DLFor between left picture visibility period, T
DRFor between right picture visibility period, GL is during left eyeglass is opened, and GR is during right eyeglass is opened, BL
OFFBe down periods backlight, BL
ONDuring backlight opening.BL
ONDuring this time, backlight have full frame backlight and backlight to scan dual mode.
1, backlight scan mode: 3D glasses switch controlling signal frequency is Gf=60 (HZ), and the refreshing frequency of LCDs is F
r=480 (HZ) are l when the liquid crystal response time of LCDs
rDuring=0.006 (second), by (formula 3) can be during an eyeglass be opened domestic demand frequency n=4 of the identical shows signal of the same frame of brush continuously, liquid crystal drive needs to change a deflection polarity per 4 times.Can be when beginning to brush the 4th by (formula 4), the time of being accumulated for 3 times of brush was 0.00625 (second) before.Can be when beginning to brush the 4th by (formula 5), the picture of Ps=12% has satisfied liquid crystal response time l
rRequirement because 12%＜100%, so need to adopt backlight scan mode to handle.As shown in Figure 4, PW is the LCDs width, and PH is the LCDs width, BL
B1～BL
B9Be backlight sequence number, B1
On～B9
OnFor during backlight of correspondence opens.Can get the rule backlight by (formula 6) and count L
n=8.33, round and obtain L after adding 1 again
n=8+1=9 (bar).So, calculate and can get by (formula 7), when realizing scanning backlight, the every renewal of image content refreshes and reaches P
b=11.1% o'clock, backlight of opening correct position closed and closed backlight of opening, and lights so from top to bottom, one by one and realizes scanning backlight.Present embodiment is not limited in sequential shown in Figure 2, and the scanning sequence that any thought of patent is thus expanded, derived is all in this scope of patent protection.
2, full frame mode backlight: 3D glasses switch controlling signal frequency is Gf=60 (HZ), and the refreshing frequency of LCDs is F
r=480 (HZ) are l when the liquid crystal response time of LCDs
rDuring=0.006 (second), by (formula 3) can be during an eyeglass be opened domestic demand frequency n=4 of the identical shows signal of the same frame of brush continuously), liquid crystal drive needs to change a deflection polarity per 4 times.Being calculated by (formula 4) can be when beginning to brush the 4th, and the time of being accumulated for 3 times of brush was 0.00625 (second) before.Being calculated by (formula 5) can be when beginning to brush the 4th, and the picture of Ps=108% has satisfied liquid crystal response time l
rRequirement because 108%＞100%, so can adopt the mode of full frame backlight control switch to realize.
With reference to Fig. 5, propose the present invention and reduce the another embodiment of method that the 3D ghost image of the tv is harassed, in the above-described embodiments, also comprise:
Step S13, when above-mentioned same frame shows signal begins to show for the 1st time, send synchronizing signal to corresponding shutter glasses, the eyeglass of controlling described shows signal correspondence is opened up to above-mentioned same frame picture and is shown end the n time.
With sequential chart shown in Figure 3 is example, and same frame picture (is example with left picture signal) connects brush 4 times, when beginning to brush the 1st time, sends synchronizing signal to the 3D glasses, and control 3D glasses are opened left eyeglass and closed right eyeglass up to having brushed the 4th left side picture signal.Should be noted that, remove above-mentioned preferable implementation, can also design other implementation, as when beginning to brush the 4th left side picture signal, send synchronizing signal to the 3D glasses, control 3D glasses are opened left eyeglass and are closed right eyeglass.
With reference to Fig. 6, propose the present invention and reduce device one embodiment that the 3D ghost image of the tv is harassed, comprising:
With reference to Fig. 7, the above-mentioned module 30 of lighting comprises:
Scanning element 32, be used for from top to bottom, one by one, circulation lights backlight of described number.
With reference to Fig. 8, in the above-described embodiments, the device that reduction 3D ghost image of the tv is harassed also comprises:
Deflection module 40 is used for showing continuously during n time at described same frame picture, and the deflection polarity of keeping liquid crystal begins to show up to the next frame picture.
Backlight drive module 50 is used for opening full frame backlightly or to adopt backlight scan mode to open one by one backlight when showing described same frame picture, strengthens the backlight drive electric current.
Synchronization module 60 is used for when above-mentioned same frame shows signal begins to show for the 1st time, sends synchronizing signal to corresponding shutter glasses, and the eyeglass unlatching of controlling described shows signal correspondence finishes up to the n time demonstration of above-mentioned same frame picture.
The device that the reduction 3D ghost image of the tv of present embodiment is harassed can be a LCDs, also can be a device that is connected with LCDs.In order to reserve enough response times to LCDs, need to improve the refreshing frequency of LCDs, just directly brush the right picture signal of next frame after promptly can not having brushed frame left side picture signal, and the mode that adopts the brush multipass is brushed same frame picture continuously, and the refresh time accumulation of multipass same frame is to reach liquid crystal response time l
rRequirement.Present LCDs, when every frame refreshes, liquid crystal will change deflection polarity to solve the ghost problem, and in the present embodiment, when the same frame picture of brush is with the accumulative total refresh time continuously, 40 pairs of liquid crystal deflection polarity of deflection module need be done respective handling, because after the liquid crystal deflection reversing, liquid crystal response time l
rTo restart to calculate, therefore, in the process of the picture refreshing of multipass same number of frames continuously, deflection module 40 is kept the current deflection polarity of liquid crystal, and only when refreshing the picture of different frame, deflection module 40 changes the deflection polarity of liquid crystal.This is because when refreshing identical picture, though deflection polarity does not change, picture is identical, can not produce ghost, and when the picture of different frame switches, just changes the deflection polarity of liquid crystal, avoids ghost.
The switch controlling signal frequency that the 3D glasses are set is Gf, and the refreshing frequency of LCDs is F
r, time of each eyeglass switch of 3D glasses then
(formula 1), the refresh time that LCDs is each
(formula 2).In needing during an eyeglass is opened, finishes driver module 10 picture of n same number of frames of continuous brush, so,
(formula 3).Every n the same obedient picture of liquid crystal brushed, and then the deflection polarity of liquid crystal changes once.
When beginning to brush the n time same obedient picture, time that n-1 time accumulated before
(formula 4) in the time of can obtaining beginning to brush the n time thus, satisfies liquid crystal response time l
rScreen area account for full frame number percent
(formula 5).
Satisfy liquid crystal response time l
rScreen area can present to the user and watch and avoided harassing of former frame picture.Judge module 20 is judged p
sWhether, work as p more than or equal to 1
s, illustrate beginning to brush before the n time that it is that deflection finishes that the liquid crystal of whole frame picture correspondence has obtained enough response times all, can the disposable full frame user of presenting to watch at 〉=1 o'clock.Work as p
s, then has only p at＜1 o'clock
sThe liquid crystal deflection of the screen area correspondence of ratio finishes, and can be presented to the user and watch, and whenever refreshes the screen area that the picture of same percentage will just refresh again then and presents to the user.For p
s〉=1 situation is lighted module 30 and can be adopted full frame backlight control switch to realize, in the time will presenting picture and watch to the user, open full frame backlight, user's visible picture content.Work as p
s＜1 o'clock, light module 30 and can close full frame backlightly, also can adopt backlight scan mode to present picture, the rule backlight is counted L
nCan calculate by following formula by computing unit 31 and learn:
(formula 6).Be noted that, if L
nNon-integer, computing unit 31 need round and add 1 again.When backlight scanning, the refreshing frequency of image content is P
b=(1/L
n) * 100% (formula 7), in order to reach minimum ghost image crosstalk effect, 32 of scanning elements are lighted backlight of correct position, close and close backlight of opening, so from top to bottom, one by one, circulation lights.
In order to solve the problem that the backlight lightening time shortens the brightness reduction that brings, backlight drive module 50 can opened full frame backlightly or to adopt backlight scan mode to open one by one backlight with during showing described same frame picture, and the mode that strengthens the backlight drive electric current promotes brightness.
Because the picture (is example with left picture signal) of same number of frames connects brush n time, when beginning to brush the 1st time, synchronization module 60 sends synchronizing signal to the 3D glasses, and control 3D glasses are opened left eyeglass and closed right eyeglass up to having brushed left picture signal the n time.Should be noted that, remove above-mentioned preferable implementation, can also design other implementation, as when beginning to brush the n time left picture signal, send synchronizing signal to the 3D glasses, control 3D glasses are opened left eyeglass and are closed right eyeglass.
In the present embodiment, make LCDs, after liquid crystal deflection finishes, open the user of allowing backlight again and see picture obtaining enough response times, so, the user just can not see the content of a last picture again, thus the ghost image that greatly reduces fast gate-type 3D TV crosstalk, improved image quality.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes instructions of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. one kind is reduced the method that the 3D ghost image of the tv is harassed, and it is characterized in that, comprising:
Driving LCDs shows same frame picture n time continuously;
When described same frame picture shows for the n time, judge and satisfy liquid crystal response time l
rScreen area account for full frame ratio p
sWhether more than or equal to 1;
p
s〉=1 o'clock, then open full frame backlightly showing described same frame picture, otherwise it is backlight to show described same frame picture to adopt backlight scan mode to open one by one.
2. the method for claim 1 is characterized in that, described p
sObtain by following formula:
p
s=(F
r* T
g-1-L
r* F
r) * 100%, F
rBe the refreshing frequency of LCDs, T
gBe the switching time of the corresponding shutter glasses of LCDs.
3. method as claimed in claim 1 or 2 is characterized in that, describedly carries out backlight scanning and comprises:
According to described p
sCalculating need be lighted backlight bar number;
From top to bottom, one by one, backlight of described number lighted in circulation.
4. as the described method of claim 1 to 2, it is characterized in that, opening full frame backlightly or to adopt backlight scan mode to open one by one backlight when showing described same frame picture, strengthen the backlight drive electric current.
5. as the described method of claim 1 to 2, it is characterized in that, show continuously during n time that the deflection polarity of keeping liquid crystal begins to show up to the next frame picture at described same frame picture.
6. one kind is reduced the device that the 3D ghost image of the tv is harassed, and it is characterized in that, comprising:
Driver module is used to drive LCDs same frame picture is shown n time continuously;
Judge module when being used for the n time demonstration of described same frame picture, being judged and is satisfied liquid crystal response time l
rScreen area account for full frame ratio p
sWhether more than or equal to 1;
Light module, be used for p
s〉=1 o'clock, open full frame backlightly showing described same frame picture, otherwise it is backlight to show described same frame picture to adopt backlight scan mode to open one by one.
7. device as claimed in claim 6 is characterized in that, described judge module specifically is used for obtaining p by following formula
s:
p
s=(F
r* T
g-1-L
r* F
r) * 100%, F
rBe the refreshing frequency of LCDs, T
gBe the switching time of the corresponding shutter glasses of LCDs.
8. as claim 6 or 7 described devices, it is characterized in that the described module of lighting comprises:
Computing unit is used for according to described p
sCalculating need be lighted backlight bar number;
Scanning element, be used for from top to bottom, one by one, circulation lights backlight of described number.
9. as claim 6 or 7 described devices, it is characterized in that, also comprise:
The backlight drive module is used for opening full frame backlightly or to adopt backlight scan mode to open one by one backlight when showing described same frame picture, strengthens the backlight drive electric current.
10. as claim 6 or 7 described devices, it is characterized in that, also comprise:
Deflection module is used for showing continuously during n time at described same frame picture, and the deflection polarity of keeping liquid crystal begins to show up to the next frame picture.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102685540A (en) * | 2012-04-26 | 2012-09-19 | 青岛海信电器股份有限公司 | Method for optimizing three-dimensional (3D) display effect and 3D television |
| CN102708808A (en) * | 2012-06-18 | 2012-10-03 | 深圳Tcl新技术有限公司 | Method and circuit for driving backlight light emitting diode (LED) lamp of television, and television |
| CN111968586A (en) * | 2020-09-07 | 2020-11-20 | 京东方科技集团股份有限公司 | Backlight source, driving method thereof, storage medium and display panel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080084512A1 (en) * | 2006-10-06 | 2008-04-10 | Brott Robert L | Stereoscopic 3d liquid crystal display apparatus with slatted light guide |
| CN101512627A (en) * | 2006-09-06 | 2009-08-19 | 夏普株式会社 | Liuid crystal display device and its driving method |
| CN101604511A (en) * | 2008-06-11 | 2009-12-16 | 胜华科技股份有限公司 | The driving method of three-dimensional display |
| WO2011081344A2 (en) * | 2009-12-30 | 2011-07-07 | Samsung Electronics Co., Ltd. | Method and apparatus for displaying 3-dimensional image and method and apparatus for controlling shutter glasses |
-
2011
- 2011-08-10 CN CN201110228832.5A patent/CN102270441B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101512627A (en) * | 2006-09-06 | 2009-08-19 | 夏普株式会社 | Liuid crystal display device and its driving method |
| US20080084512A1 (en) * | 2006-10-06 | 2008-04-10 | Brott Robert L | Stereoscopic 3d liquid crystal display apparatus with slatted light guide |
| CN101604511A (en) * | 2008-06-11 | 2009-12-16 | 胜华科技股份有限公司 | The driving method of three-dimensional display |
| WO2011081344A2 (en) * | 2009-12-30 | 2011-07-07 | Samsung Electronics Co., Ltd. | Method and apparatus for displaying 3-dimensional image and method and apparatus for controlling shutter glasses |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102685540A (en) * | 2012-04-26 | 2012-09-19 | 青岛海信电器股份有限公司 | Method for optimizing three-dimensional (3D) display effect and 3D television |
| CN102685540B (en) * | 2012-04-26 | 2015-03-04 | 青岛海信电器股份有限公司 | Method for optimizing 3D (three-dimensional) display effect and 3D television |
| CN102708808A (en) * | 2012-06-18 | 2012-10-03 | 深圳Tcl新技术有限公司 | Method and circuit for driving backlight light emitting diode (LED) lamp of television, and television |
| CN102708808B (en) * | 2012-06-18 | 2016-08-10 | 深圳Tcl新技术有限公司 | The driving method of backlight of television LED, drive circuit and television set |
| CN111968586A (en) * | 2020-09-07 | 2020-11-20 | 京东方科技集团股份有限公司 | Backlight source, driving method thereof, storage medium and display panel |
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