CN101697595B - Method for displaying 3D image, television and glasses - Google Patents
Method for displaying 3D image, television and glasses Download PDFInfo
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- CN101697595B CN101697595B CN 200910205678 CN200910205678A CN101697595B CN 101697595 B CN101697595 B CN 101697595B CN 200910205678 CN200910205678 CN 200910205678 CN 200910205678 A CN200910205678 A CN 200910205678A CN 101697595 B CN101697595 B CN 101697595B
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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
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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
- G09G3/001—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
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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
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0237—Switching ON and OFF the backlight within one frame
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
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- G—PHYSICS
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- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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Abstract
The invention discloses a method for displaying a 3D image, a television and glasses. The method comprises: receiving a 3D image signal which comprises a frame of left eye signal and a frame of right eye signal that are continuous; multiplying the frequency of the 3D image signal to obtain n continuous frames of left eye signals and n continuous right eye signals, wherein n is the number by which the frequency is multiplied and is more than or equal to 2; and displaying the n continuous frames of left eye signals and the n continuous right eye signals by using an LED driving signals for drive, wherein the LED driving signal corresponding to the first frame of left eye signal in the n continuous frames of left eye signals is closed, the LED driving signal corresponding to the nth frame of left eye signal is open, the LED driving signal corresponding to the first frame of right eye signal in the continuous n frames of right eye signals is closed and the LED driving signal corresponding to the nth frame of right eye signal is open. In the invention, mutual interference of left and right frames is avoided, the energy consumption of a backlight source is reduced and the cost of the whole machine is reduced.
Description
Technical field
The present invention relates to 3 dimension technical fields, particularly a kind of method, television set and a kind of glasses that are used for the 3D rendering demonstration.
Background technology
Realize that the basic principle that 3D shows is that two width of cloth pictures that will will have small parallax by optics or processing of circuit are delivered to left eye and right eye respectively, and do not disturb mutually, form stereo perception in corticocerebral synthesis.The method that realization 3D shows on LCD TV has multiple, can be divided into two kinds on glasses type and bore hole type.
The bore hole type is at the attached subsides one deck 3 D grating in liquid crystal display screen surface, and this grating is by the separation of light refraction or barrier effect realization right and left eyes image, and as described in patent CN 101013201A, the shortcoming of this method is that image resolution ratio is low, grating cost height.
Polarization method in the glasses type is to paste one deck optical polarization film on the liquid crystal display screen surface, controls the polarisation of light direction and separate left and eye image, as described in patent CN200680033140.2.The shortcoming of polarization method is that the difficulty of processing of optical polarization film is big, cost is high, film coating process requires complexity.
Summary of the invention
The invention provides and be used for method, television set and a kind of glasses that 3D rendering shows, the left and right sides picture cross-interference issue when solving liquid crystal display, the whole cost of realizing of reduction simultaneously.
The embodiment of the invention provides a kind of method that 3D rendering shows that is used for, and comprising:
Receive the 3D rendering signal, described 3D rendering signal comprises a continuous frame left eye signal one frame right eye signal;
Described 3D rendering signal frequency multiplication is handled, obtained continuous n frame left eye signal and continuous n frame right eye signal, described n is the multiple of frequency multiplication, and more than or equal to 2;
The LED drive shows described continuous n frame left eye signal and continuous n frame right eye signal;
The pairing LED drive signal of the first frame left eye signal is for closing in the described continuous n frame left eye signal, the pairing LED drive signal of n frame left eye signal is for opening, the pairing LED drive signal of the first frame right eye signal is for closing in the described continuous n frame right eye signal, and the pairing LED drive signal of described n frame right eye signal is for opening;
Wherein, the 2nd in the described continuous n frame left eye signal to the pairing LED drive signal of n-1 frame for opening or closing; In the described continuous n frame right eye signal the 2nd to the pairing LED drive signal of n-1 frame for opening or closing.
Preferably, from described 3D rendering signal, extract synchronous control signal; Control described LED drive signal and control according to described synchronous control signal and send eyeglass to the glasses of watching described 3D rendering signal and open and close signal, control is opened the right eye eyeglass and is closed left eyeglass lens, or closes the right eye eyeglass and open left eyeglass lens;
When control was opened the right eye eyeglass and closed left eyeglass lens, the LED drive showed described continuous n frame eye image signal; Close the right eye eyeglass when control and open left eyeglass lens, the LED drive shows described continuous n frame left-eye image signal.
The embodiment of the invention also provides a kind of method that 3D rendering shows that is used for, and comprising:
Receive the 3D rendering signal, described 3D rendering signal comprises a continuous frame left eye signal one frame right eye signal;
Insert black burst in described 3D rendering signal, and described 3D rendering signal frequency multiplication is handled, generation comprises the continuous n frame left eye signal of black burst and continuous n frame right eye signal, and described n is the multiple of frequency multiplication, and more than or equal to 2;
Wherein, first frame in the described continuous n frame left eye signal is a black burst, and the n frame is non-black burst, and first frame in the described continuous n frame right eye signal is a black burst, and the n frame is non-black burst;
The LED drive shows described continuous n frame left eye signal and continuous n frame right eye signal;
Wherein, the 2nd in the described continuous n frame left eye signal to the pairing picture signal of n-1 frame is black burst or non-black burst; In the described continuous n frame right eye signal the 2nd to the pairing picture signal of n-1 frame is black burst or non-black burst.
Preferably, from described 3D rendering signal, extract synchronous control signal; Control described LED drive signal and control according to described synchronous control signal and send eyeglass to the glasses of watching described 3D rendering signal and open and close signal, control is opened the right eye eyeglass and is closed left eyeglass lens, or closes the right eye eyeglass and open left eyeglass lens;
When control was opened the right eye eyeglass and closed left eyeglass lens, the LED drive showed described continuous n frame eye image signal; Close the right eye eyeglass when control and open left eyeglass lens, the LED drive shows described continuous n frame left-eye image signal.
Preferably, described method further comprises:
According to described synchronous control signal, control that the pairing LED drive signal of black burst is for closing in the described continuous n frame left eye signal, the pairing LED drive signal of non-black burst is for opening; Control that the pairing LED drive signal of black burst is for closing in the described continuous n frame right eye signal, the pairing LED drive signal of non-black burst is for opening.
The television set that the embodiment of the invention also provides a kind of 3D of being used for to show comprises:
Mainboard is used to receive the 3D rendering signal, and described 3D rendering signal comprises a continuous frame left eye signal one frame right eye signal; Described 3D rendering signal frequency multiplication is handled, obtained continuous n frame left eye signal and continuous n frame right eye signal, described n is the multiple of frequency multiplication, and more than or equal to 2;
The LED driver module is used to send the LED drive signal, and described LED drive shows described continuous n frame left eye signal and continuous n frame right eye signal;
The pairing LED drive signal of the first frame left eye signal is for closing in the described continuous n frame left eye signal, the pairing LED drive signal of n frame left eye signal is for opening, the pairing LED drive signal of the first frame right eye signal is for closing in the described continuous n frame right eye signal, and the pairing LED drive signal of described n frame right eye signal is for opening;
Wherein, the 2nd in the described continuous n frame left eye signal to the pairing LED drive signal of n-1 frame for opening or closing; In the described continuous n frame right eye signal the 2nd to the pairing LED drive signal of n-1 frame for opening or closing.
Preferably, described mainboard also is used for extracting synchronous control signal from described 3D rendering signal, sends described synchronous control signal to liquid crystal panel drive plate and switch glasses module;
Described LED driver module also is used for controlling described LED drive signal according to described synchronous control signal;
Described switch glasses module also is used for sending eyeglass according to described synchronous control signal to the glasses of watching described 3D rendering signal and opens and closes signal, and control is opened the right eye eyeglass and closed left eyeglass lens, or closes the right eye eyeglass and open left eyeglass lens;
When control was opened the right eye eyeglass and closed left eyeglass lens, the LED drive showed described continuous n frame eye image signal; Close the right eye eyeglass when control and open left eyeglass lens, the LED drive shows described continuous n frame left-eye image signal.
The embodiment of the invention also provides a kind of television set that 3D rendering shows that is used for, and comprising:
Mainboard is used to receive the 3D rendering signal, and described 3D rendering signal comprises a continuous frame left eye signal one frame right eye signal; Insert black burst in described 3D rendering signal, and described 3D rendering signal frequency multiplication is handled, generation comprises the continuous n frame left eye signal of black burst and continuous n frame right eye signal, and described n is the multiple of frequency multiplication, and more than or equal to 2; Wherein, first frame in the described continuous n frame left eye signal is a black burst, and the n frame is non-black burst, and first frame in the described continuous n frame right eye signal is a black burst, and the n frame is non-black burst;
The LED driver module is used to send the LED drive signal, and described LED drive shows described continuous n frame left eye signal and continuous n frame right eye signal;
Wherein, the 2nd in the described continuous n frame left eye signal to the pairing picture signal of n-1 frame is black burst or non-black burst; In the described continuous n frame right eye signal the 2nd to the pairing picture signal of n-1 frame is black burst or non-black burst.
Preferably, described mainboard also is used for extracting synchronous control signal from described 3D rendering signal, sends described synchronous control signal to liquid crystal panel drive plate and switch glasses module;
Described LED driver module also is used for controlling described LED drive signal according to described synchronous control signal;
Described switch glasses module also is used for sending eyeglass according to described synchronous control signal to the glasses of watching described 3D rendering signal and opens and closes signal, and control is opened the right eye eyeglass and closed left eyeglass lens, or closes the right eye eyeglass and open left eyeglass lens;
When control was opened the right eye eyeglass and closed left eyeglass lens, the LED drive showed described continuous n frame eye image signal; Close the right eye eyeglass when control and open left eyeglass lens, the LED drive shows described continuous n frame left-eye image signal.
Preferably, described LED driver module also is used for according to described synchronous control signal, controls that the pairing LED drive signal of black burst is for closing in the described continuous n frame left eye signal, and the pairing LED drive signal of non-black burst is for opening; Control that the pairing LED drive signal of black burst is for closing in the described continuous n frame right eye signal, the pairing LED drive signal of non-black burst is for opening.
Use the present invention, compare, have following outstanding advantage at least with solution in the past:
The one, solved left and right sides picture cross-interference issue.The mechanism of liquid crystal display has determined to have the residual existence of previous frame when showing the next frame picture, this shows it is unallowed for 3D, otherwise can have crosstalking of right and left eyes image, reduces greatly even can't realize the 3D sensation.And the scheme that the embodiment of the invention provided can head it off.When that frame of crosstalking shows, though image content is arranged, backlight closing in the time of the therefore and just width of cloth black picture seen can not cause and crosstalk.
The 2nd, reduced the energy consumption of backlight.During closing led light source, energy consumption is almost nil in the embodiment of the invention.The duty ratio of LED control signal is 50%, and the energy consumption saving is near 50%.
The 3rd, the complete machine cost is low.Compare with other 3D displaying schemes, the embodiment of the invention does not need expensive optical screen or blooming, and technology is simple, greatly reduces the complete machine cost.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, to do to introduce simply to the accompanying drawing of the required use of embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the basic principle schematic of liquid crystal display;
Fig. 2 is the schematic diagram of time-division glasses type 3D Display Technique;
Fig. 3 is the right and left eyes picture signal schematic diagram that LCD screen is sent;
Fig. 4 is the method flow diagram according to a kind of 3D of being used for demonstration of the embodiment of the invention;
Fig. 5 is time-division 3D rendering signal, LED drive signal and the right and left eyes image sequential diagram according to the embodiment of the invention one;
Fig. 6 is the method flow diagram that is used for the 3D demonstration according to the another kind of the embodiment of the invention;
Fig. 7 is time-division 3D rendering signal, LED drive signal and the right and left eyes image sequential diagram according to the embodiment of the invention two;
Fig. 8, it is time-division 3D rendering signal, LED drive signal and right and left eyes image sequential diagram according to the embodiment of the invention three;
Fig. 9 is the television set logical construction schematic diagram according to a kind of 3D of being used for demonstration of the embodiment of the invention;
Figure 10 is the television set logical construction schematic diagram that is used for the 3D demonstration according to the another kind of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Fig. 1 is the basic principle schematic of liquid crystal display.Each two field picture is made up of several rows, and drives successively with behavior unit.Fig. 1 a and Fig. 1 b are that example has illustrated the liquid crystal display drive principle with the screen of 1920*1080.Liquid crystal has brightness and keeps characteristic, promptly when n is capable be driven after, can keep this brightness, up to new drive is arranged.So when showing two adjacent two field pictures, such as n frame and n+1 frame, having partial content in the n+1 two field picture is the n frame.When showing the 3D content, because the picture material difference is very little between adjacent two frames, and need give left eye and right eye respectively, this characteristic of keeping can cause that two intraoculars hold and crosstalks, and can not produce stereo perception.
The present invention adopts time-sharing procedure to realize the demonstration of 3D rendering, it belongs to a kind of in the glasses type, time-sharing procedure in the glasses type is the right and left eyes image is shown in turn according to sequential and to be transferred in the eyes, referring to Fig. 2, it is the schematic diagram of time-division glasses type 3D Display Technique, and LCD screen is sent the right and left eyes picture signal in proper order, and sends synchronizing signal, the light valve glasses receive the switch of control right and left eyes eyeglass after the synchronizing signal, make user's right and left eyes accept the right and left eyes picture signal respectively.
Shown in Figure 3 is the right and left eyes picture signal schematic diagram that LCD screen is sent, and as can be known, right and left eyes picture signal alternately sequential is sent.
Embodiment one: frequency multiplication time-division 3D rendering signal, control LED-backlit
The method that is used for the 3D rendering demonstration that embodiment one is provided comprises: receive the 3D rendering signal, described 3D rendering signal comprises a continuous frame left eye signal one frame right eye signal; Described 3D rendering signal frequency multiplication is handled, obtained continuous n frame left eye signal and continuous n frame right eye signal, described n is the multiple of frequency multiplication, and more than or equal to 2; The LED drive shows described continuous n frame left eye signal and continuous n frame right eye signal;
The pairing LED drive signal of the first frame left eye signal is for closing in the described continuous n frame left eye signal, the pairing LED drive signal of n frame left eye signal is for opening, the pairing LED drive signal of the first frame right eye signal is for closing in the described continuous n frame right eye signal, and the pairing LED drive signal of described n frame right eye signal is for opening.
Wherein, the 2nd in the described continuous n frame left eye signal to the pairing LED drive signal of n-1 frame for opening or closing; In the described continuous n frame right eye signal the 2nd to the pairing LED drive signal of n-1 frame for opening or closing.That is to say that continuous n frame left eye signal and the pairing LED drive signal of intermediate frame in the right eye signal are not had strict restriction, the LED drive signal can be set according to actual needs for opening or closing.
Have again, can also from described 3D rendering signal, extract synchronous control signal; Control described LED drive signal and control according to described synchronous control signal and send eyeglass to the glasses of watching described 3D rendering signal and open and close signal, control is opened the right eye eyeglass and is closed left eyeglass lens, or closes the right eye eyeglass and open left eyeglass lens; Concrete, when control was opened the right eye eyeglass and closed left eyeglass lens, the LED drive showed described continuous n frame eye image signal; Close the right eye eyeglass when control and open left eyeglass lens, the LED drive shows described continuous n frame left-eye image signal.
Above-mentionedly send the mode that eyeglass opens and closes signal to glasses and comprise: the mode of infrared, radio frequency or bluetooth.
Be example with two frequencys multiplication below, specify the implementation procedure of embodiment one.
Referring to Fig. 4, it is that described flow process specifically comprises according to the method flow diagram of a kind of 3D of being used for demonstration of the embodiment of the invention:
Wherein, the identical 3D frequency multiplication picture signal of the above-mentioned corresponding two two field picture contents of every frame time-division 3D rendering signal; Described time-division 3D rendering signal comprises left-eye image signal and eye image signal;
Wherein, the received picture signal of the mainboard in the television set can be the 3D rendering signal of various forms;
Described LED-backlit drive control module is controlled the pairing LED drive signal of a frame in the identical 3D frequency multiplication picture signal of two two field picture contents for closing according to described synchronous control signal, and the LED drive signal of another frame correspondence is for opening;
Described switch glasses module sends eyeglass according to described synchronous control signal to glasses and opens and closes signal, and control is opened the right eye eyeglass and closed left eyeglass lens, or closes the right eye eyeglass and open left eyeglass lens;
Wherein, when control is opened the right eye eyeglass and closed left eyeglass lens, drive liquid crystal panel and show the eye image signal that two frames are identical; Close the right eye eyeglass when control and open left eyeglass lens, drive liquid crystal panel and show the left-eye image signal that two frames are identical.
Need to prove that described switch glasses module can send eyeglass to glasses by modes such as infrared, radio frequency or bluetooths according to described synchronous control signal and open and close signal.
From the angle of sequential embodiment is done explanation again and again below.
Referring to Fig. 5, it is time-division 3D rendering signal, LED drive signal and right and left eyes image sequential diagram according to the embodiment of the invention one.Among the figure, L and R represent the right and left eyes picture signal respectively.
Time-division 3D rendering signal (as Rn, Ln etc.) after the frequency multiplication reprocessing, form as shown in Figure 5 frequency multiplication 3D rendering signal (as Rn ", Rn ' Ln " and Ln ' etc.), wherein, Ln " identical with Ln ' content; Ln+1 " identical with Ln+1 ' content, Rn " identical with Rn ' content, Rn+1 " identical with Rn+1 ' content.For the LED drive signal, at Rn ", Ln ", Rn+1 ", Ln+1 " open during frame, close during frame at Rn ', Ln ', Rn+1 ', Ln+1 '.In the signal that left eye receives, a preceding part is a picture material, and a back part is details in a play not acted out on stage, but told through dialogues because LED closes.Right eye also is like this.
At television set one end, the LED-backlit control method is such: be the sequencing control of frame synchronizing signal locking LED-backlit by the synchronous control signal from time-division 3D rendering signal, make LED-backlit show Ln " frame, Rn " open image duration, and close image duration at Ln ' frame, Rn '.
And at glasses one end, as Rn " when frame and Rn ' two field picture show, be opened at the control bottom right lens of switch glasses module, left eyeglass lens is closed; As Ln " and Ln ' two field picture when showing, left eyeglass lens is opened under the control of switch glasses module, and the right eye eyeglass is closed.Like this, by the control of LED-backlit and the cooperation of glasses, just can realize separating of left eye and right eye signal, and in brain, form stereo perception.
Use the method that 3D shows that is used for that embodiments of the invention one provide, compare, have following outstanding advantage at least with solution in the past:
The one, solved left and right sides picture cross-interference issue.The mechanism of liquid crystal display has determined to have the residual existence of previous frame when showing the next frame picture, this shows it is unallowed for 3D, otherwise can have crosstalking of right and left eyes image, reduces greatly even can't realize the 3D sensation.And the scheme that the embodiment of the invention provided can head it off.When that frame of crosstalking shows, though image content is arranged, backlight closing in the time of the therefore and just width of cloth black picture seen can not cause and crosstalk.
The 2nd, reduced the energy consumption of backlight.During closing led light source, energy consumption is almost nil in the embodiment of the invention.The duty ratio of LED control signal is 50%, and the energy consumption saving is near 50%.
The 3rd, the complete machine cost is low.Compare with other 3D displaying schemes, the embodiment of the invention does not need expensive optical screen or blooming, and technology is simple, greatly reduces the complete machine cost.
Embodiment two: frequency multiplication time-division 3D rendering signal, insert black
The method that is used for the 3D rendering demonstration that embodiment two is provided comprises: receive the 3D rendering signal, described 3D rendering signal comprises a continuous frame left eye signal one frame right eye signal; Insert black burst in described 3D rendering signal, and described 3D rendering signal frequency multiplication is handled, generation comprises the continuous n frame left eye signal of black burst and continuous n frame right eye signal, and described n is the multiple of frequency multiplication, and more than or equal to 2; Wherein, first frame in the described continuous n frame left eye signal is a black burst, and the n frame is non-black burst, and first frame in the described continuous n frame right eye signal is a black burst, and the n frame is non-black burst; The LED drive shows described continuous n frame left eye signal and continuous n frame right eye signal.
Wherein, the 2nd in the described continuous n frame left eye signal to the pairing picture signal of n-1 frame is black burst or non-black burst; In the described continuous n frame right eye signal the 2nd to the pairing picture signal of n-1 frame is black burst or non-black burst.Whether, to continuous n frame left eye signal and intermediate frame right eye signal in be black burst do not have strict restriction, can be provided with according to actual needs if that is to say.
Have again, can also from described 3D rendering signal, extract synchronous control signal; Control described LED drive signal and control according to described synchronous control signal and send eyeglass to the glasses of watching described 3D rendering signal and open and close signal, control is opened the right eye eyeglass and is closed left eyeglass lens, or closes the right eye eyeglass and open left eyeglass lens; Concrete, when control was opened the right eye eyeglass and closed left eyeglass lens, the LED drive showed described continuous n frame eye image signal; Close the right eye eyeglass when control and open left eyeglass lens, the LED drive shows described continuous n frame left-eye image signal.
Said method can further include: according to described synchronous control signal, control that the pairing LED drive signal of black burst is for closing in the described continuous n frame left eye signal, the pairing LED drive signal of non-black burst is for opening; Control that the pairing LED drive signal of black burst is for closing in the described continuous n frame right eye signal, the pairing LED drive signal of non-black burst is for opening.
Above-mentionedly send the mode that eyeglass opens and closes signal to glasses and comprise: the mode of infrared, radio frequency or bluetooth.
Be example with two frequencys multiplication below, specify the implementation procedure of embodiment two, three.
Referring to Fig. 6, it is the method flow diagram that is used for the 3D demonstration according to the another kind of the embodiment of the invention, and described flow process specifically comprises:
That is to say that the 3D frequency multiplication picture signal of this moment is " black burst+left eye signal+black burst+right eye signal ";
Wherein, described time-division 3D rendering signal comprises left-eye image signal and eye image signal;
Wherein, when control is opened the right eye eyeglass and closed left eyeglass lens, drive liquid crystal panel and show a frame black burst and a frame eye image signal; Close the right eye eyeglass when control and open left eyeglass lens, drive liquid crystal panel and show a frame black burst and a frame left-eye image signal.
Need to prove that described switch glasses module can send eyeglass to glasses by modes such as infrared, radio frequency or bluetooths according to described synchronous control signal and open and close signal.
From the angle of sequential embodiment is done explanation again and again below.
Referring to Fig. 7, it is time-division 3D rendering signal, LED drive signal and right and left eyes image sequential diagram according to the embodiment of the invention two.Among the figure, L and R represent the right and left eyes picture signal respectively.
Time-division 3D rendering signal (as Rn, Ln etc.) through inserted black burst handle as shown in Figure 7 frequency multiplication 3D rendering signal of back formation (as Rn ", Rn ' Ln " and Ln ' etc.), thereby, Ln " identical with the Ln content, Ln ' is a black burst; Ln+1 " identical with the Ln+1 content, Ln+1 ' is a black burst; Rn " identical with the Rn content, Rn ' is a black burst; Rn+1 " identical with Rn+1 ' content, Rn+1 ' is a black burst.In the present embodiment, do not process for the LED drive signal, promptly LED-backlit is bright all the time.Because Rn ", Ln ", Rn+1 ", Ln+1 " have the 3D rendering content in the frame, and in Rn ', Ln ', Rn+1 ', Ln+1 ' frame, promptly do not have content for black field.Thereby in the signal that receives of left eye, a preceding part is a picture material, a back part since black does not have content.Right eye also is like this.
Use the method that 3D shows that is used for that embodiments of the invention two provide, compare, have following outstanding advantage at least with solution in the past:
The one, solved left and right sides picture cross-interference issue.The mechanism of liquid crystal display has determined to have the residual existence of previous frame when showing the next frame picture, this shows it is unallowed for 3D, otherwise can have crosstalking of right and left eyes image, reduces greatly even can't realize the 3D sensation.And the scheme that the embodiment of the invention provided can head it off.To there be that frame of crosstalking to insert black, and, do not have content in this frame and, can not cause and crosstalk for complete black though there is this frame to exist.
The 2nd, the complete machine cost is low.Compare with other 3D displaying schemes, the embodiment of the invention does not need expensive optical screen or blooming, and technology is simple, greatly reduces the complete machine cost.
Embodiment three: control LED-backlit signal on the basis of embodiment two
Present embodiment is the further control of doing on the basis of embodiment two, concrete, further comprises under method shown in Figure 6: the mainboard in the television set sends to described LED-backlit drive control module with the synchronous control signal that extracts; Described LED-backlit drive control module is controlled the pairing LED drive signal of black burst place frame for closing according to described synchronous control signal.Like this, promptly exist black field to have LED-backlit control again.
Referring to Fig. 8, it is time-division 3D rendering signal, LED drive signal and right and left eyes image sequential diagram according to the embodiment of the invention three.The difference of itself and Fig. 7 is: for the LED drive signal, at Rn ", Ln ", Rn+1 ", Ln+1 " open during frame, close during frame at Rn ', Ln ', Rn+1 ', Ln+1 '.In the signal that left eye receives, a preceding part is a picture material, and a back part is details in a play not acted out on stage, but told through dialogues because LED closes He Heichang.Right eye also is like this.
Use the method that 3D shows that is used for that embodiments of the invention three provide, compare, have following outstanding advantage at least with solution in the past:
The one, solved left and right sides picture cross-interference issue.The mechanism of liquid crystal display has determined to have the residual existence of previous frame when showing the next frame picture, this shows it is unallowed for 3D, otherwise can have crosstalking of right and left eyes image, reduces greatly even can't realize the 3D sensation.And the scheme that the embodiment of the invention provided can head it off.When that frame of crosstalking shows, both there be not image content, a just width of cloth black picture of closing LED-backlit again thereby seeing can not cause and crosstalk.
The 2nd, reduced the energy consumption of backlight.During closing led light source, energy consumption is almost nil in the embodiment of the invention.The duty ratio of LED control signal is 50%, and the energy consumption saving is near 50%.
The 3rd, the complete machine cost is low.Compare with other 3D displaying schemes, the embodiment of the invention does not need expensive optical screen or blooming, and technology is simple, greatly reduces the complete machine cost.
Embodiment four:
The television set that the embodiment of the invention also provides a kind of 3D of being used for to show referring to Fig. 9, comprising:
Mainboard 901 is used to receive the 3D rendering signal, and described 3D rendering signal comprises a continuous frame left eye signal one frame right eye signal; Described 3D rendering signal frequency multiplication is handled, obtained continuous n frame left eye signal and continuous n frame right eye signal, described n is the multiple of frequency multiplication, and more than or equal to 2;
LED driver module 902 is used to send the LED drive signal, and described LED drive shows described continuous n frame left eye signal and continuous n frame right eye signal;
The pairing LED drive signal of the first frame left eye signal is for closing in the described continuous n frame left eye signal, the pairing LED drive signal of n frame left eye signal is for opening, the pairing LED drive signal of the first frame right eye signal is for closing in the described continuous n frame right eye signal, and the pairing LED drive signal of described n frame right eye signal is for opening.
In the described continuous n frame left eye signal the 2nd to the pairing LED drive signal of n-1 frame for opening or closing; In the described continuous n frame right eye signal the 2nd to the pairing LED drive signal of n-1 frame for opening or closing.
Wherein, described mainboard also is used for extracting synchronous control signal from described 3D rendering signal, sends described synchronous control signal to liquid crystal panel drive plate and switch glasses module; Described LED driver module also is used for controlling described LED drive signal according to described synchronous control signal; Described switch glasses module also is used for sending eyeglass according to described synchronous control signal to the glasses of watching described 3D rendering signal and opens and closes signal, and control is opened the right eye eyeglass and closed left eyeglass lens, or closes the right eye eyeglass and open left eyeglass lens;
When control was opened the right eye eyeglass and closed left eyeglass lens, the LED drive showed described continuous n frame eye image signal; Close the right eye eyeglass when control and open left eyeglass lens, the LED drive shows described continuous n frame left-eye image signal.
Above-mentionedly send the mode that eyeglass opens and closes signal to glasses and comprise: the mode of infrared, radio frequency or bluetooth.
Use the television set that 3D shows that is used for that embodiments of the invention four provide, compare, have following outstanding advantage at least with solution in the past:
The one, solved left and right sides picture cross-interference issue.The mechanism of liquid crystal display has determined to have the residual existence of previous frame when showing the next frame picture, this shows it is unallowed for 3D, otherwise can have crosstalking of right and left eyes image, reduces greatly even can't realize the 3D sensation.And the scheme that the embodiment of the invention provided can head it off.When that frame of crosstalking shows, though image content is arranged, backlight closing in the time of the therefore and just width of cloth black picture seen can not cause and crosstalk.
The 2nd, reduced the energy consumption of backlight.During closing led light source, energy consumption is almost nil in the embodiment of the invention.The duty ratio of LED control signal is 50%, and the energy consumption saving is near 50%.
The 3rd, the complete machine cost is low.Compare with other 3D displaying schemes, the embodiment of the invention does not need expensive optical screen or blooming, and technology is simple, greatly reduces the complete machine cost.
Embodiment five:
The embodiment of the invention also provides the another kind of television set that 3D shows that is used for, and still referring to Fig. 9, comprising:
Mainboard 901 is used to receive the 3D rendering signal, and described 3D rendering signal comprises a continuous frame left eye signal one frame right eye signal; Insert black burst in described 3D rendering signal, and described 3D rendering signal frequency multiplication is handled, generation comprises the continuous n frame left eye signal of black burst and continuous n frame right eye signal, and described n is the multiple of frequency multiplication, and more than or equal to 2; Wherein, first frame in the described continuous n frame left eye signal is a black burst, and the n frame is non-black burst, and first frame in the described continuous n frame right eye signal is a black burst, and the n frame is non-black burst;
LED driver module 902 is used to send the LED drive signal, and described LED drive shows described continuous n frame left eye signal and continuous n frame right eye signal.
In the described continuous n frame left eye signal the 2nd to the pairing picture signal of n-1 frame is black burst or non-black burst; In the described continuous n frame right eye signal the 2nd to the pairing picture signal of n-1 frame is black burst or non-black burst.
Wherein, described mainboard also is used for extracting synchronous control signal from described 3D rendering signal, sends described synchronous control signal to liquid crystal panel drive plate and switch glasses module;
Described LED driver module also is used for controlling described LED drive signal according to described synchronous control signal;
Described switch glasses module also is used for sending eyeglass according to described synchronous control signal to the glasses of watching described 3D rendering signal and opens and closes signal, and control is opened the right eye eyeglass and closed left eyeglass lens, or closes the right eye eyeglass and open left eyeglass lens;
When control was opened the right eye eyeglass and closed left eyeglass lens, the LED drive showed described continuous n frame eye image signal; Close the right eye eyeglass when control and open left eyeglass lens, the LED drive shows described continuous n frame left-eye image signal.
Wherein, described LED driver module also is used for according to described synchronous control signal, controls that the pairing LED drive signal of black burst is for closing in the described continuous n frame left eye signal, and the pairing LED drive signal of non-black burst is for opening; Control that the pairing LED drive signal of black burst is for closing in the described continuous n frame right eye signal, the pairing LED drive signal of non-black burst is for opening.
Above-mentionedly send the mode that eyeglass opens and closes signal to glasses and comprise: the mode of infrared, radio frequency or bluetooth.
Use the television set that 3D shows that is used for that embodiments of the invention five provide, compare, have following outstanding advantage at least with solution in the past:
The one, solved left and right sides picture cross-interference issue.The mechanism of liquid crystal display has determined to have the residual existence of previous frame when showing the next frame picture, this shows it is unallowed for 3D, otherwise can have crosstalking of right and left eyes image, reduces greatly even can't realize the 3D sensation.And the scheme that the embodiment of the invention provided can head it off.To there be that frame of crosstalking to insert black, and, do not have content in this frame and, can not cause and crosstalk for complete black though there is this frame to exist.
The 2nd, reduced the energy consumption of backlight.During closing led light source, energy consumption is almost nil in the embodiment of the invention.The duty ratio of LED control signal is 50%, and the energy consumption saving is near 50%.
The 3rd, the complete machine cost is low.Compare with other 3D displaying schemes, the embodiment of the invention does not need expensive optical screen or blooming, and technology is simple, greatly reduces the complete machine cost.
Need to prove that in the foregoing description one to five, light-emitting diode (LED, Light EmittingDiode) drive signal is a dc low-voltage signal, its response speed is very fast, can eliminate the conditions of streaking of liquid crystal display.In addition, the LED drive signal can realize the thorough shutoff of backlight, solves the not black defective of liquid crystal " blank screen ".Electricity is rapid because LED powers on down, and square wave figure is complete, so be different from other display drive signals, as cold-cathode fluorescence lamp (CCFL, Cold Cathode Fluorescent Lamp) electricity just has delay under the powering on of TV, and square wave figure has energy loss, so answer expenditure little.In addition, the LED colour gamut is wider, and color is more bright-coloured.
Implement six:
The embodiment of the invention also provides a kind of glasses that are used to watch 3D rendering, referring to Figure 10, comprising:
These glasses are used to cooperate the foregoing description five and six television set, to realize watching 3D rendering.
For television set and glasses embodiment, because it is substantially similar in appearance to method embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of method embodiment.
Need to prove, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Do not having under the situation of more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.All any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all be included in protection scope of the present invention.
Claims (10)
1. one kind is used for the method that 3D rendering shows, it is characterized in that, comprising:
Receive the 3D rendering signal, described 3D rendering signal comprises a continuous frame left eye signal one frame right eye signal;
Described 3D rendering signal frequency multiplication is handled, obtained continuous n frame left eye signal and continuous n frame right eye signal, described n is the multiple of frequency multiplication, and more than or equal to 2;
The LED drive shows described continuous n frame left eye signal and continuous n frame right eye signal;
The pairing LED drive signal of the first frame left eye signal is for closing in the described continuous n frame left eye signal, the pairing LED drive signal of n frame left eye signal is for opening, the pairing LED drive signal of the first frame right eye signal is for closing in the described continuous n frame right eye signal, and the pairing LED drive signal of described n frame right eye signal is for opening;
Wherein, the 2nd in the described continuous n frame left eye signal to the pairing LED drive signal of n-1 frame for opening or closing; In the described continuous n frame right eye signal the 2nd to the pairing LED drive signal of n-1 frame for opening or closing.
2. method according to claim 1 is characterized in that, extracts synchronous control signal from described 3D rendering signal; Control described LED drive signal and control according to described synchronous control signal and send eyeglass to the glasses of watching described 3D rendering signal and open and close signal, control is opened the right eye eyeglass and is closed left eyeglass lens, or closes the right eye eyeglass and open left eyeglass lens;
When control was opened the right eye eyeglass and closed left eyeglass lens, the LED drive showed described continuous n frame eye image signal; Close the right eye eyeglass when control and open left eyeglass lens, the LED drive shows described continuous n frame left-eye image signal.
3. one kind is used for the method that 3D rendering shows, it is characterized in that, comprising:
Receive the 3D rendering signal, described 3D rendering signal comprises a continuous frame left eye signal one frame right eye signal;
Insert black burst in described 3D rendering signal, and described 3D rendering signal frequency multiplication is handled, generation comprises the continuous n frame left eye signal of black burst and continuous n frame right eye signal, and described n is the multiple of frequency multiplication, and more than or equal to 2;
Wherein, first frame in the described continuous n frame left eye signal is a black burst, and the n frame is non-black burst, and first frame in the described continuous n frame right eye signal is a black burst, and the n frame is non-black burst;
The LED drive shows described continuous n frame left eye signal and continuous n frame right eye signal;
Wherein, the 2nd in the described continuous n frame left eye signal to the pairing picture signal of n-1 frame is black burst or non-black burst; In the described continuous n frame right eye signal the 2nd to the pairing picture signal of n-1 frame is black burst or non-black burst.
4. method according to claim 3 is characterized in that, extracts synchronous control signal from described 3D rendering signal; Control described LED drive signal and control according to described synchronous control signal and send eyeglass to the glasses of watching described 3D rendering signal and open and close signal, control is opened the right eye eyeglass and is closed left eyeglass lens, or closes the right eye eyeglass and open left eyeglass lens;
When control was opened the right eye eyeglass and closed left eyeglass lens, the LED drive showed described continuous n frame eye image signal; Close the right eye eyeglass when control and open left eyeglass lens, the LED drive shows described continuous n frame left-eye image signal.
5. method according to claim 4 is characterized in that, described method further comprises:
According to described synchronous control signal, control that the pairing LED drive signal of black burst is for closing in the described continuous n frame left eye signal, the pairing LED drive signal of non-black burst is for opening; Control that the pairing LED drive signal of black burst is for closing in the described continuous n frame right eye signal, the pairing LED drive signal of non-black burst is for opening.
6. one kind is used for the television set that 3D shows, it is characterized in that, comprising:
Mainboard is used to receive the 3D rendering signal, and described 3D rendering signal comprises a continuous frame left eye signal one frame right eye signal; Described 3D rendering signal frequency multiplication is handled, obtained continuous n frame left eye signal and continuous n frame right eye signal, described n is the multiple of frequency multiplication, and more than or equal to 2;
The LED driver module is used to send the LED drive signal, and described LED drive shows described continuous n frame left eye signal and continuous n frame right eye signal;
The pairing LED drive signal of the first frame left eye signal is for closing in the described continuous n frame left eye signal, the pairing LED drive signal of n frame left eye signal is for opening, the pairing LED drive signal of the first frame right eye signal is for closing in the described continuous n frame right eye signal, and the pairing LED drive signal of described n frame right eye signal is for opening.
Wherein, the 2nd in the described continuous n frame left eye signal to the pairing LED drive signal of n-1 frame for opening or closing; In the described continuous n frame right eye signal the 2nd to the pairing LED drive signal of n-1 frame for opening or closing.
7. television set according to claim 6 is characterized in that,
Described mainboard also is used for extracting synchronous control signal from described 3D rendering signal, sends described synchronous control signal to liquid crystal panel drive plate and switch glasses module;
Described LED driver module also is used for controlling described LED drive signal according to described synchronous control signal;
Described switch glasses module also is used for sending eyeglass according to described synchronous control signal to the glasses of watching described 3D rendering signal and opens and closes signal, and control is opened the right eye eyeglass and closed left eyeglass lens, or closes the right eye eyeglass and open left eyeglass lens;
When control was opened the right eye eyeglass and closed left eyeglass lens, the LED drive showed described continuous n frame eye image signal; Close the right eye eyeglass when control and open left eyeglass lens, the LED drive shows described continuous n frame left-eye image signal.
8. one kind is used for the television set that 3D rendering shows, it is characterized in that, comprising:
Mainboard is used to receive the 3D rendering signal, and described 3D rendering signal comprises a continuous frame left eye signal one frame right eye signal; Insert black burst in described 3D rendering signal, and described 3D rendering signal frequency multiplication is handled, generation comprises the continuous n frame left eye signal of black burst and continuous n frame right eye signal, and described n is the multiple of frequency multiplication, and more than or equal to 2; Wherein, first frame in the described continuous n frame left eye signal is a black burst, and the n frame is non-black burst, and first frame in the described continuous n frame right eye signal is a black burst, and the n frame is non-black burst;
The LED driver module is used to send the LED drive signal, and described LED drive shows described continuous n frame left eye signal and continuous n frame right eye signal.
Wherein, the 2nd in the described continuous n frame left eye signal to the pairing picture signal of n-1 frame is black burst or non-black burst; In the described continuous n frame right eye signal the 2nd to the pairing picture signal of n-1 frame is black burst or non-black burst.
9. television set according to claim 8 is characterized in that,
Described mainboard also is used for extracting synchronous control signal from described 3D rendering signal, sends described synchronous control signal to liquid crystal panel drive plate and switch glasses module;
Described LED driver module also is used for controlling described LED drive signal according to described synchronous control signal;
Described switch glasses module also is used for sending eyeglass according to described synchronous control signal to the glasses of watching described 3D rendering signal and opens and closes signal, and control is opened the right eye eyeglass and closed left eyeglass lens, or closes the right eye eyeglass and open left eyeglass lens;
When control was opened the right eye eyeglass and closed left eyeglass lens, the LED drive showed described continuous n frame eye image signal; Close the right eye eyeglass when control and open left eyeglass lens, the LED drive shows described continuous n frame left-eye image signal.
10. television set according to claim 9 is characterized in that,
Described LED driver module also is used for according to described synchronous control signal, controls that the pairing LED drive signal of black burst is for closing in the described continuous n frame left eye signal, and the pairing LED drive signal of non-black burst is for opening; Control that the pairing LED drive signal of black burst is for closing in the described continuous n frame right eye signal, the pairing LED drive signal of non-black burst is for opening.
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| CN101697595A (en) | 2010-04-21 |
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