CN101950542A - Method, device and liquid crystal display for reducing crosstalk of shutter-type 3D liquid crystal display - Google Patents
Method, device and liquid crystal display for reducing crosstalk of shutter-type 3D liquid crystal display Download PDFInfo
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- CN101950542A CN101950542A CN 201010277317 CN201010277317A CN101950542A CN 101950542 A CN101950542 A CN 101950542A CN 201010277317 CN201010277317 CN 201010277317 CN 201010277317 A CN201010277317 A CN 201010277317A CN 101950542 A CN101950542 A CN 101950542A
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Abstract
The invention aims to provide a method, a device and a liquid crystal display for reducing the crosstalk of a shutter-type 3D liquid crystal display. The method for reducing the crosstalk of the shutter-type 3D liquid crystal display comprises the following steps: receiving a frame sequence sent by the zoom control device of the 3D liquid crystal display, reducing the frame frequency of the frame sequence; and outputting the frame sequence. The technical scheme of the invention is beneficial for reducing the crosstalk of the shutter-type 3D liquid crystal display, and improves the display visual quality of the shutter-type 3D liquid crystal display.
Description
Technical field
The present invention relates to fast gate-type 3D lcd technology, relate to a kind of method and apparatus and LCD that fast gate-type 3D liquid crystal display is crosstalked that reduce especially.
Background technology
The principle of work of fast gate-type 3D liquid crystal display is to make liquid crystal panel show left-eye image and eye image successively, and the closure of controlling shutter glasses simultaneously makes people's left eye see left-eye image, and right eye is seen eye image.If left eye has been seen eye image, right eye has been seen left-eye image, and human eye will be felt the phenomenon of crosstalking.
Liquid crystal is because owing to exist maintenance (ho1d) characteristic, the image that causes liquid crystal panel always can residual previous frame when showing a two field picture not respond, if liquid crystal panel itself can't distinguish the image of right and left eyes, no matter how people adjust the synchronous of shutter glasses, always can have the phenomenon of crosstalking.
Crosstalk in order to reduce demonstration, usual way is the time of the every frame image data transmission of compression, perhaps adopts the technology of scanning backlight, improves the dynamic response of image.
Adopt the technology of scanning backlight to reduce to a certain extent to show and crosstalk, but effect is limited; Adopt the restriction of the mode in every frame image data transmission time of compression owing to compressibility, reduction shows that the effect of crosstalking remains limited.Therefore in general, prior art effect when the fast gate-type 3D liquid crystal display of reduction is crosstalked is not good enough.
Summary of the invention
Fundamental purpose of the present invention is to propose a kind of method and apparatus and LCD that fast gate-type 3D liquid crystal display is crosstalked that reduce, and crosstalks to reduce fast gate-type 3D liquid crystal display.
For achieving the above object, according to an aspect of the present invention, a kind of method that fast gate-type 3D liquid crystal display is crosstalked that reduces has been proposed.
The method that the fast gate-type 3D liquid crystal display of reduction of the present invention is crosstalked comprises: the frame sequence that receives the convergent-divergent control device transmission of 3D LCD; Reduce the frame frequency of described frame sequence, export described frame sequence then.
Further, also comprise before reducing the frame frequency of described frame sequence: the transfer rate that promotes every frame image data in the frame sequence that described convergent-divergent control device sends; Perhaps further, exporting described frame sequence also comprises before: promote the transfer rate that reduces every frame image data in the frame frequency described frame sequence afterwards.
Further, in said method, export described frame sequence and comprise: the time schedule controller that described frame sequence is sent to described 3D LCD.
Further, in said method, export described frame sequence and comprise: described frame sequence is sent to described 3D backlight liquid crystal display control device.
Further, in said method, the display frequency of described 3D LCD is 120Hz; The frame frequency that reduces described frame sequence comprises: the frame frequency of described frame sequence is reduced to 110Hz.
For achieving the above object, according to a further aspect in the invention, a kind of device that fast gate-type 3D liquid crystal display is crosstalked that reduces has been proposed.
The device that the fast gate-type 3D liquid crystal display of reduction of the present invention is crosstalked comprises: receiver module is used to receive the frame sequence that the convergent-divergent control device of 3D LCD sends; The frame-rate conversion module, the frame frequency that is used to reduce described frame sequence is exported described frame sequence then.
Further, in said apparatus, also comprise frame data speed hoisting module, be used for promoting the transfer rate of the every frame image data of described frame sequence.
For achieving the above object, according to a further aspect in the invention, a kind of LCD has been proposed.
LCD of the present invention comprises the image zoom control device, also comprises: the frame-rate conversion device, be used to receive the frame sequence that described image zoom control device sends, and reduce the frame frequency of described frame sequence then.
Further, above-mentioned LCD also comprises frame data speed lifting gear, is used for promoting the transfer rate of the every frame image data of described frame sequence.
According to technical scheme of the present invention, obtain bigger frame gap by reducing frame frequency, make liquid crystal molecule have the longer time to respond, crosstalk thereby help to reduce demonstration.And in the present embodiment, thus frame data speed improved frame gap further increased; Adopt backlight control to improve the dynamic response of image in addition, these all help to reduce fast gate-type 3D liquid crystal display crosstalks, thereby has improved the display quality of fast gate-type 3D LCD.
Description of drawings
Accompanying drawing described herein does not constitute improper qualification of the present invention further understanding of the present invention with helping.In the accompanying drawings:
Fig. 1 is the synoptic diagram of the basic step of the method for crosstalking according to the fast gate-type 3D liquid crystal display of reduction of the embodiment of the invention;
Fig. 2 is the synoptic diagram according to the frame sequence in the embodiment of the invention;
Fig. 3 is the synoptic diagram of the element of the device of crosstalking according to the fast gate-type 3D liquid crystal display of reduction of the embodiment of the invention;
Fig. 4 A and Fig. 4 B are the in addition two kinds of synoptic diagram that reduce the ingredient of the device that fast gate-type 3D liquid crystal displays crosstalk according to present embodiment; And
Fig. 5 A and Fig. 5 B are the synoptic diagram according to the chief component of two kinds of LCD of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are made an explanation.Under the situation that does not cause conflict, various embodiments can make up mutually.
Fig. 1 is the synoptic diagram of the basic step of the method for crosstalking according to the fast gate-type 3D liquid crystal display of reduction of the embodiment of the invention.
As shown in Figure 1, in the embodiment of the invention, reduce method that fast gate-type 3D liquid crystal display crosstalks and comprise that mainly following step S11 is to step S13:
Step S11: the frame sequence that receives the convergent-divergent control device transmission of 3D LCD.
The effect of convergent-divergent control device (Scaler) mainly is that display image is carried out convergent-divergent.Because the size and the screen proportion of the display of original video image size and ratio and this video of demonstration are inconsistent, so need carry out convergent-divergent to adapt to current display to image.The convergent-divergent control device can be the convergent-divergent control chip.
The frame sequence that the convergent-divergent control device sends has certain frame frequency.In transmission course, frame frequency is meant the data that comprise what frames in the data of per second transmission; When showing, frame frequency is meant how many two field pictures per second shows.
Step S12: the frame frequency that reduces the frame sequence that receives among the step S11.
Step S13: output frame sequence.
The frame sequence here is to reduce frame frequency frame sequence afterwards.Frame sequence can export the time schedule controller (TCON) of 3D LCD to.
Adopting above-mentioned step S11 to S13 to help to reduce fast gate-type 3D liquid crystal display crosstalks.Below in conjunction with Fig. 2 this is illustrated.Fig. 2 is the synoptic diagram according to the frame sequence in the embodiment of the invention.
Two frame sequences have been shown among Fig. 2, and wherein frame sequence 21 represents not reduce the frame sequence of frame frequency, and frame sequence 22 expression frame sequences 21 reduce the frame sequence after the frame frequencies.
In Fig. 2, T1 represents the time that every frame image data transmits, and T2 represents the time of frame gap.As can be seen from the figure, under the constant situation of T1, reduce frame frequency after, the frame number that time per unit for example transmits among the 1S has reduced, so frame gap T2 increases.
According to the principle of LCD, bigger frame gap helps to provide long flip-flop transition to liquid crystal molecule, thereby reduces the residual of image that previous frame do not responded, shows and crosstalks so reduced.
For the display frequency that extensively adopts at present is the fast gate-type 3D LCD of 120Hz, frame frequency can be reduced to 110Hz, and under this frequency, human eye can not feel that image has pause.
It can also be seen that from Fig. 2 if reduce T1, under the constant situation of frame frequency, frame gap T2 also can increase.So the transfer rate that reduces frame frequency and raising view data can be combined, further increases frame gap.
Can be after step S11, before the step S12, promote the transfer rate of every frame image data in the frame sequence that the convergent-divergent control device sends.
In addition also can be after step S12, before the S13, promote the transfer rate of every frame image data in the described frame sequence that reduces after the frame frequency.
Under the situation of the mode of the above-mentioned reduction frame frequency in adopting present embodiment, perhaps not only reduced frame frequency but also promoted under the situation of transfer rate of view data, and can also show with further reduction in conjunction with the backlight control means and crosstalk.
For this reason, during the output frame sequence, not only view data is outputed to TCON, and output to fast gate-type 3D backlight liquid crystal display control device in step S13, it is backlight to control to carry out data analysis by backlight control apparatus, the demonstration of fluid,matching crystal panel.
Present embodiment provides a kind of device that fast gate-type 3D liquid crystal display is crosstalked that reduces again, and its element is shown among Fig. 3.Fig. 3 is the synoptic diagram of the element of the device of crosstalking according to the fast gate-type 3D liquid crystal display of reduction of the embodiment of the invention.
As shown in Figure 3, reduce the device that fast gate-type 3D liquid crystal display crosstalks and comprise receiver module 31 and frame-rate conversion module 32.
Fig. 4 A and Fig. 4 B are the in addition two kinds of synoptic diagram that reduce the ingredient of the device that fast gate-type 3D liquid crystal displays crosstalk according to present embodiment.
Shown in Fig. 4 A and Fig. 4 B, on the basis of receiver module shown in Figure 3 31 and frame-rate conversion module 32, increased frame data speed hoisting module 40.
Frame data speed hoisting module 40 can be connected between receiver module 31 and the frame-rate conversion module 32, shown in Fig. 4 A, promptly earlier frame data speed is promoted and then change frame frequency.
Also can be shown in Fig. 4 B, frame data speed hoisting module 40 is connected after the frame-rate conversion module 32, the conversion frame frequency promotes output then to frame data speed more earlier.
Provide a kind of LCD in the present embodiment again.This LCD is the fast gate-type LCD of a kind of 3D, wherein includes image zoom control device and frame-rate conversion device.
Fig. 5 A and Fig. 5 B are the synoptic diagram according to the chief component of two kinds of LCD of the embodiment of the invention.
Shown in Fig. 5 A, in a kind of LCD of the embodiment of the invention, comprise image zoom control device 51, also comprise frame-rate conversion device 52.This frame-rate conversion device 52 is used to receive the frame sequence that described image zoom control device sends, and reduces the frame frequency of described frame sequence then.Frame-rate conversion device 52 can adopt the structure of the device that the fast gate-type 3D liquid crystal display of the reduction among Fig. 3 crosstalks.
Shown in Fig. 5 B, in the another kind of LCD of the embodiment of the invention, comprise image zoom control device 51, frame-rate conversion device 52, also comprise frame data speed lifting gear 53.Frame data speed lifting gear 53 is used for promoting the transfer rate of the every frame image data of frame sequence.
Frame data speed lifting gear 53 can adopt the structure of frame data speed hoisting module 40, equally, frame data speed lifting gear 53 can be connected between image zoom control device 51 and the frame-rate conversion device 52, shown in Fig. 5 B, also can be connected after the frame-rate conversion device 52, promptly after frame-rate conversion, promote frame data speed again and export then.
From the technical scheme of present embodiment as can be seen, in the present embodiment, mainly be to obtain bigger frame gap by reducing frame frequency, make liquid crystal molecule have the longer time to respond, thereby helping to reduce show and crosstalk.And in the present embodiment, thus frame data speed improved frame gap further increased; Adopt backlight control to improve the dynamic response of image in addition, these all help to reduce fast gate-type 3D liquid crystal display crosstalks, thereby has improved the display quality of fast gate-type 3D LCD.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, carry out by calculation element thereby they can be stored in the memory storage, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. one kind is reduced the method that fast gate-type 3D liquid crystal display is crosstalked, and it is characterized in that, comprising:
Receive the frame sequence of the convergent-divergent control device transmission of 3D LCD;
Reduce the frame frequency of described frame sequence, export described frame sequence then.
2. method according to claim 1 is characterized in that, also comprises before reducing the frame frequency of described frame sequence: the transfer rate that promotes every frame image data in the frame sequence that described convergent-divergent control device sends.
3. method according to claim 1 is characterized in that, exports described frame sequence and also comprises before: promote the transfer rate that reduces every frame image data in the frame frequency described frame sequence afterwards.
4. according to the described method of claim 1,2 or 3, it is characterized in that, export described frame sequence and comprise: the time schedule controller that described frame sequence is sent to described 3D LCD.
5. according to the described method of claim 1,2 or 3, it is characterized in that, export described frame sequence and comprise: described frame sequence is sent to described 3D backlight liquid crystal display control device.
6. according to the described method of claim 1,2 or 3, it is characterized in that,
The display frequency of described 3D LCD is 120Hz;
The frame frequency that reduces described frame sequence comprises: the frame frequency of described frame sequence is reduced to 110Hz.
7. one kind is reduced the device that fast gate-type 3D liquid crystal display is crosstalked, and it is characterized in that, comprising:
Receiver module is used to receive the frame sequence that the convergent-divergent control device of 3D LCD sends;
The frame-rate conversion module, the frame frequency that is used to reduce described frame sequence is exported described frame sequence then.
8. device according to claim 7 is characterized in that, also comprises frame data speed hoisting module, is used for promoting the transfer rate of the every frame image data of described frame sequence.
9. a LCD comprises the image zoom control device, it is characterized in that, also comprises:
The frame-rate conversion device is used to receive the frame sequence that described image zoom control device sends, and reduces the frame frequency of described frame sequence then.
10. LCD according to claim 9 is characterized in that, also comprises frame data speed lifting gear, is used for promoting the transfer rate of the every frame image data of described frame sequence.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010277317 CN101950542A (en) | 2010-09-07 | 2010-09-07 | Method, device and liquid crystal display for reducing crosstalk of shutter-type 3D liquid crystal display |
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| CN 201010277317 CN101950542A (en) | 2010-09-07 | 2010-09-07 | Method, device and liquid crystal display for reducing crosstalk of shutter-type 3D liquid crystal display |
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| CN102647608A (en) * | 2011-02-18 | 2012-08-22 | 乐金显示有限公司 | Crosstalk compensation in a stereoscopic image display using over driving control (odc) modulation |
| CN102685520A (en) * | 2011-03-17 | 2012-09-19 | 瑞昱半导体股份有限公司 | Image control device |
| 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 |
| CN102740091A (en) * | 2011-03-31 | 2012-10-17 | 索尼公司 | 3-d controller system for legacy tv |
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| CN102647608A (en) * | 2011-02-18 | 2012-08-22 | 乐金显示有限公司 | Crosstalk compensation in a stereoscopic image display using over driving control (odc) modulation |
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| 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 |
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Application publication date: 20110119 |