CN103152593A - Three-dimensional (3D) synchronizing signal transmission method, 3D synchronizing signal transmission device and 3D television - Google Patents
Three-dimensional (3D) synchronizing signal transmission method, 3D synchronizing signal transmission device and 3D television Download PDFInfo
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- CN103152593A CN103152593A CN2013100368235A CN201310036823A CN103152593A CN 103152593 A CN103152593 A CN 103152593A CN 2013100368235 A CN2013100368235 A CN 2013100368235A CN 201310036823 A CN201310036823 A CN 201310036823A CN 103152593 A CN103152593 A CN 103152593A
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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
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
- G02B30/24—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type involving temporal multiplexing, e.g. using sequentially activated left and right shutters
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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
- G09G2310/08—Details of timing specific for flat panels, other than clock recovery
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2213/00—Details of stereoscopic systems
- H04N2213/008—Aspects relating to glasses for viewing stereoscopic images
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- General Physics & Mathematics (AREA)
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- Optics & Photonics (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
The invention provides a three-dimensional (3D) synchronizing signal transmission method, a 3D synchronizing signal transmission device and a 3D television, wherein a first synchronizing signal is generated based on a 3D video signal, then the first synchronizing signal is modulated through a carrier signal and a backlight control signal which drives backlight to generate a first control signal, namely, a new backlight control signal which is used for driving the backlight, then a photodetector of a pair of 3D glasses is used for inducting changes in the backlight in the environment lighting, a light signal is converted into an electrical signal which is a second control signal, the first synchronizing signal in the second control signal is identified, a third control signal which controls opening and closing of lens of the 3D glasses is generated according to the first synchronizing signal, timing sequence of the opening and closing of a left lens and the opening and closing of a right lens of the 3D glasses is controlled, and image display of a left eye and image display of a right eye can keep synchronous with the opening and closing of the left lens and the opening and closing of the right lens of the 3D glasses. Compared with the prior art, the 3D synchronizing signal transmission method, the 3D synchronizing signal transmission device and the 3D television are free from setting of a transmitter module and simplify a transmitting unit.
Description
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Technical field
The present invention relates to the Display Technique field, particularly a kind of 3D synchronisation signal transmission method, device and 3D television set.
Background technology
Fig. 1 is the schematic diagram of realizing of shutter 3D Display Technique, with reference to Fig. 1, in shutter 3D Display Technique, right and left eyes image Alternation Display, be: when needs show eye image, right eyeglass is opened left eyeglass and is closed, when needs show left-eye image, left eyeglass is opened right eyeglass and is closed, and in whole process, the sequential that refreshes of right and left eyes image keeps synchronizeing with the switching sequence of glasses left and right eyeglass, so just guarantor's left eye can be seen by the left eyeglass of 3D glasses the left-eye image of each two field picture, guarantor's right eye can be seen by the right eyeglass of 3D glasses the eye image of each two field picture, Alternation Display right and left eyes image is finally at the synthetic 3D image of people's brain.
In prior art, shutter type 3 D spectacles comprises infrared signal or radiofrequency signal send mode, its formation comprises transmitter unit and receiving element, wherein, transmitter unit is placed in display terminal (as: 3D TV), it extracts synchronizing signal from display image signals, synchronizing signal is modulated into the modulation signal of being convenient to launch, then exports to the expelling plate that is arranged in display terminal, expelling plate is converted into infrared modulation signal or radiofrequency signal, and infrared or radiofrequency signal are outputed in the space.Receiving element is arranged in shutter 3 D glasses, the receiver of 3D glasses will receive infrared in this space or radiofrequency signal, and carry out demodulation reduction synchronizing signal, synchronizing signal is converted into control signal again, control the left and right eyeglass switch of glasses according to control signal, like this, control left and right eyeglass switch by timesharing, and assurance keeps synchronizeing with right and left eyes image display timing generator.
Fig. 2 is the schematic diagram that prior art modulation 3D synchronizing signal is processed, show as Fig. 2, carrier signal and 60Hz picture synchronization signal by 38k are modulated, the modulation generated frequency is the 38k carrier signal of 60Hz, launch propagation by transmitter module by infrared or RF-wise, then 3D glasses receiver module received RF or infrared signal, carry out demodulation reduction synchronizing signal through the 3D glasses again, synchronizing signal is used for the switch of the left and right eyeglass of control 3D glasses, realizes that the demonstration of 3D eyeglass switch and video image keeps synchronizeing.
But in the process of inventor's technical scheme in realizing the embodiment of the present application, existent defect is as follows at least to find above-mentioned shutter 3D Display Technique:
Above-mentioned infrared signal or radiofrequency signal mode, transmitter unit all need to assemble transmitter module at display terminal, transmitter module is made of the circuit board that is provided with the signal emitting head, and be connected with the central processing unit of signal processing circuit, for guaranteeing convenient reception that transmit, transmitter module need be arranged in the fore shell of the positive front end of display terminal, needs to offer launch hole for coordinating emitting head on fore shell, like this, fore shell inside needs headspace to be used to arrange transmitter module.
Summary of the invention
In order to simplify transmitter unit in prior art 3D synchronisation signal transmission method, the application provides a kind of 3D synchronisation signal transmission method, device and 3D television set.
For realizing the above goal of the invention, the embodiment of the present application provides a kind of 3D synchronous transmission of signal device on the one hand, comprises transmitter unit and receiving element, and described transmitter unit is arranged in display device, it comprises: the synchronizing signal generation unit generates the first synchronizing signal based on the 3D vision signal; The backlight signal modulating unit is connected with described synchronizing signal generation unit, is used for described the first synchronizing signal and backlight control signal are modulated, and generates the first control signal; Backlight driving unit is connected with the backlight control signal modulating unit, receives described the first control signal, is used for driving described display device backlight module luminous; Described receiving element is arranged in the 3D glasses, and it comprises: photoreceptor is used for comprising that the light signal of variation backlight is converted into the second control signal; The synchronizing signal recognition unit is connected with described photoreceptor, is used for from described the second described the first synchronizing signal of control signal identification; The glasses timing control unit is connected with described synchronizing signal recognition unit, is used for first synchronizing signal according to identification and generates the 3rd control signal, and described the 3rd control signal is used for the switching sequence of the right and left eyes eyeglass of control 3D glasses.。
A kind of 3D synchronisation signal transmission method is provided on the other hand, has been applied to comprise in the 3D display device of display screen, generated the first synchronizing signal based on the 3D vision signal; Described the first synchronizing signal and backlight control signal are modulated, generate the first control signal; Described the first control signal drives described display backlight; Be used for to comprise that the light signal of variation backlight is converted into the second control signal; Described the first synchronizing signal of identification from described the second control signal; Generate the 3rd control signal according to identification the first synchronizing signal, described the 3rd control signal is used for the switching sequence of the right and left eyes eyeglass of control 3D glasses.
On the one hand, also provide a kind of 3D television set in the present embodiment again, described 3D TV comprises display device described in above-mentioned 3D synchronous transmission of signal device, and is equipped with 3D glasses described in above-mentioned 3D synchronous transmission of signal device.
Technical scheme by in the one or more embodiment in the embodiment of the present application can obtain following technique effect at least:
on the one hand, the present invention adopts technical scheme to be, generate the first synchronizing signal based on the 3D vision signal, again the first synchronizing signal is modulated by carrier signal and driving backlight control signal backlight, generate the first control signal, that is: new backlight control signal, be used for driving backlight luminous, respond to by the photoreceptor of 3D glasses the light signal that includes variation backlight again and be converted into the signal of telecommunication, the signal of telecommunication is namely: the second control signal, the synchronous recognition unit of 3D glasses identifies the first synchronizing signal again from the second control signal, generate the 3rd control signal of controlling the eyeglass switch according to the first synchronizing signal, control 3D glasses right and left eyes eyeglass switching sequence, can keep the right and left eyes image to show with the demonstration of 3D glasses right and left eyes eyeglass switch and 3D vision signal keeps synchronizeing.Compared with prior art, the present invention is transmitted synchronizing signal by line-of-sight propagation, utilized the luminous luminous ray that produces of backlight module in the display device terminal, synchronizing signal is modulated to drive backlight luminescence together with backlight control signal, wherein, synchronizing signal can affect variation backlight, pick out synchronizing signal from variation backlight, realized transmitting and receiving of display device end synchronizing signal, like this, need not at the display device end, the synchronizing signal transmitter module to be set, simplify transmitter unit.
On the other hand, the present invention adopts in above-mentioned technical scheme, due to the functional module of transmitter module not being set in transmitter unit again, aspect structural design, fore shell need not to reserve the space that arranges of transmitter module, like this, the thickness of complete machine and border width no longer are subjected to the transmitter module spatial limitation, are conducive to complete machine ultrathin or fore shell frame narrower limit more.
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Description of drawings
Fig. 1 is the schematic diagram of realizing of prior art shutter 3D Display Technique;
Fig. 2 is the schematic diagram that prior art modulation 3D synchronizing signal is processed;
Fig. 3 is embodiment of the present invention 3D synchronous transmission of signal system framework figure;
Fig. 4 is the embodiment of the present invention one 3D synchronisation signal transmission method flow chart;
Fig. 5 is the modulated carrier signal schematic diagram of embodiment one;
Fig. 6 is right and left eyes synchronizing signal modulated carrier signal schematic diagram;
Fig. 7 is the Blinking(flashing type) liquid crystal display screen backlight modulation signal schematic representation;
Fig. 8 is the Scanning(scan-type) liquid crystal display screen backlight modulation signal schematic representation;
Fig. 9 is the 3D synchronous transmission of signal device frame figure of embodiment two;
Figure 10 is a kind of receiving element circuit diagram of embodiment two;
Figure 11 is a kind of 3D television set schematic diagram of embodiment three;
Embodiment
Reach for further setting forth the present invention technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, embodiment, structure, feature and the effect thereof of 3D synchronisation signal transmission method, device and the television set that foundation the application is proposed are described in detail as follows:
Aforementioned and other technology contents of relevant the application, Characteristic can be known to present in the following detailed description that coordinates with reference to graphic preferred embodiment.By the explanation of embodiment, when can be to reach technological means and the effect that predetermined purpose takes to be able to more deeply and concrete understanding to the present invention, yet listed accompanying drawing only be to provide with reference to the use of explanation, the present invention is limited.
Technical scheme in the embodiment of the present application is for solving the problems of the technologies described above, and general thought is as follows:
the present invention adopts technical scheme to be, 3D synchronous transmission of signal device mainly comprises transmitter unit and receiving element, wherein, transmitter unit is that the synchronizing signal of 3D glasses is modulated together with backlight signal, generate the modulation backlight control signal, namely the first control signal, go to drive backlight by the first control signal, receiving element is on the 3D glasses, photoreceptor to be set, change by photoreceptor induced environment light, photoreceptor is converted into the signal of telecommunication with light signal, because changing the variation backlight that is mainly driven by the first control signal, surround lighting causes, like this, the signal of telecommunication is the information that the second control signal comprises the first control signal, also comprise what the modulation of synchronizing signal and backlight control signal generated in the information of the first control signal, wherein, synchronizing signal also affects variation backlight, the 3D glasses can identify the synchronizing signal of carrying in the second control signal, generated by synchronizing signal again and control 3D eyeglass control signal, therefore, realized that 3D shows that the right and left eyes image synchronizes with 3D eyeglass switch.
In order to make the technical staff in the technical field of the invention more clearly understand the present invention, below in conjunction with accompanying drawing, by specific embodiment, the technical scheme in the embodiment of the present application is described in detail.
Fig. 3 is 3D synchronous transmission of signal system framework figure of the present invention, shows as Fig. 3, and transmission system mainly comprises display device 1 and 3D glasses 2.
wherein, display device 1 includes display screen (not shown) and transmitter unit 13, display screen comprises backlight control signal output unit 12 in display backlight 11 and display driver unit, transmitter unit 13 includes synchronizing signal generation unit 1301, backlight signal modulating unit 1302 and backlight driving unit, backlight signal modulating unit 1302 receives the backlight control signal of backlight control signal output unit 12 outputs and the synchronizing signal of synchronizing signal generation unit 1301 outputs, be used for generating the backlight modulation signal, i.e. the first control signal, the first control signal is exported to backlight driving unit 1303, it is luminous that backlight driving unit 1303 drives display backlight 11 according to the first control signal.
Embodiment one:
A kind of 3D synchronisation signal transmission method is provided in the present embodiment, the method is applied in the 3D display device of display screen, wherein, the 3D display device comprises 3D LCD TV, panel computer equipment, mobile phone etc., 3D display device type does not consist of the present embodiment restriction at this, in the embodiment of the present application, do illustrating take the 3D LCD TV as an example, take the display screen of 120Hz3D liquid crystal display screen as the 3D LCD TV.
Below, Fig. 4 is the present embodiment one 3D synchronisation signal transmission method flow chart, specifically in conjunction with Fig. 4, to the embodiment of the present application one specific implementation process, is described in detail, and comprises the steps:
Step S11: generate the first synchronizing signal based on the 3D vision signal.
In this enforcement, this step specifically also comprises:
The 3D LCD TV receives outside 3D vision signal by the peripheral signal interface, the 3D vision signal is carried out the 3D signal resolution, isolate the right and left eyes picture signal, and be processed into the display image data of 120Hz, comprise left eye image data and eye image data, be used for carrying out the Alternation Display of right and left eyes image on display screen, realize 3D rendering.
Obtain video synchronization signal from resolve described 3D vision signal, wherein, video synchronization signal includes left-eye image video synchronization signal and eye image video synchronization signal.
Adopt 38kHz carrier wave square-wave signal that video synchronization signal is modulated, obtain the first synchronizing signal, be a kind of digital pulse signal.Wherein, carrier signal also can adopt other frequencies, as 20kHz etc., does not consist of the present embodiment restriction at this, and modulation system can adopt the digit pulse modulation, is used for being modulated into the digital pulse signal that includes pulse number and pulse duration.
Fig. 5 is embodiment one modulated carrier signal schematic diagram, shows as Fig. 5, and video synchronization signal carries out the 38kHz carrier signal of the 60Hz of pulse modulation generation through the 38kHz carrier wave.
Same, in vision signal, left eye video synchronization signal and right eye video synchronization signal also can be arranged at respectively carrier signal, Fig. 6 is right and left eyes synchronizing signal modulated carrier signal schematic diagram, show as Fig. 6, the coding of right and left eyes synchronizing signal is different, be convenient to identify the right and left eyes synchronizing signal, as: the left eye synchronizing signal is encoded to 101010, and the right eye synchronizing signal is encoded to 100010.When identifying synchronizing signal, can control the glasses switching sequence according to the left-eye image synchronizing signal, also can control the glasses switching sequence according to the right eye synchronizing signal, can also control left eyeglass lens according to the left eye synchronizing signal respectively and open the light, the right eye synchronizing signal is controlled right eye eyeglass switch.
On the other hand, in the present embodiment, generate first synchronizing signal during every reception one frame 3D video, also can accept first synchronizing signal of multiframe 3D video generation, as: first synchronizing signal just generated during every reception 2 frame 3D video.
Step S12: described the first synchronizing signal and backlight control signal are modulated, generate the first control signal.Wherein, backlight control signal can by the time schedule controller output PWM dim signal of display screen, partly not repeat them here prior art in the prior art.
Fig. 7 is the Blinking(flashing type) liquid crystal display screen backlight modulation signal schematic representation, in conjunction with Fig. 5 and Fig. 7,38kHz carrier signal and the PWM backlight control signal of 60Hz are modulated, and generate new backlight control signal, namely the first control signal, be used for driving the backlight of control display screen.Wherein shown in Fig. 7, insert ash field or black field between the image of left and right, also can not insert image, only left-eye image and eye image are carried out Alternation Display.the Blinking(flashing type) mode of liquid crystal display screen employing standard-sized sheet backlight or complete shut-down, the backlight switch time is determined according to the Duty ratio control pwm signal, the backlight switch position is to refresh the stable state time according to 3D rendering to determine, when showing left-eye image, begin refreshed image from the top, the image stable state arrives downwards successively from the top, when the capable liquid crystal molecule of part liquid crystal reaches stable state, begin to open backlight, to liquid crystal display screen bottom liquid crystal is capable also arrive stable state after, close backlight until refresh eye image, refreshing eye image backlight open sequential and left-eye image, to refresh sequential identical.Wherein, PWM backlight control pulse signal is placed between high period, drives backlight lightening, when being placed in low level, drives backlight closing, and the first synchronizing signal recurs 3 bright dark variations in the backlight control signal of modulation.
Fig. 8 is the Scanning(scan-type) liquid crystal display screen backlight modulation signal schematic representation, in conjunction with Fig. 5 and Fig. 8,38kHz carrier signal and the PWM backlight control signal of 60Hz are modulated, and generate new backlight control signal, namely the first control signal, be used for driving the backlight of control display screen.Be six segmentation scan modes backlight shown in Fig. 8, scan mode backlight does not consist of the restriction of the technical scheme of the present embodiment herein, other scan modes yet.6 backlight control signals corresponding to 6 zones of liquid crystal display screen, open period backlight is prolonged successively afterwards by the regional backlight control signal of backlight control signal to the six of first area, each backlight control signal is modulated with the first synchronizing signal respectively, the pulse position of the first synchronizing signal and pulse duration are identical in each backlight control signal of modulation, like this, the variation moment backlight and the duration of the first synchronizing signal generation backlight in each zone keep synchronous.
Step S13: it is luminous that described the first control signal drives described display backlight.
Show in conjunction with Fig. 7 and Fig. 8, according to the PWM dim signal of modulation, that is: the first control signal, be used for driving display backlight.Wherein as shown, in the PWM dim signal of modulation, backlightly be modulated into according to PWM that the pulse number of digital pulse signal and width change.In Fig. 7, be for example that six bright dark variations occur in meeting backlight corresponding to synchronous signal impulse.Variation backlight can affect surround lighting and change, like this, control variation backlight just with synchronizing signal by the light signal that is converted into backlight.
The photoreceptor of step S14:3D glasses will comprise that the light signal of variation backlight is converted into the second control signal.
Show in conjunction with Fig. 3, photoreceptor 2201 is set in 3D glasses 2, wherein photoreceptor 2201 is the high sensitivity light-sensitive device, the light signal that the high frequency visible light changes can be converted into a kind of signal of telecommunication.
Like this, photoreceptor 2201 can will be subjected to the light signal of the surround lighting of variable effect backlight to be converted into the signal of telecommunication, that is: the second control signal, due to the variation of variable effect backlight to surround lighting, the first control signal that includes backlight control in the second control signal, further, the first control signal is formed by the first synchronizing signal and PWM dim signal backlight modulation, also includes the first synchronizing signal in the second control signal.
Step S15: described the first synchronizing signal of identification from described the second control signal.
Further, the first synchronizing signal is for adopting 38kHz carrier wave square-wave signal video synchronization signal to be modulated a kind of digital pulse signal of generation, extract pulse duration and the pulse number of corresponding variation backlight from described the second control signal, according to described pulse duration and described the first synchronizing signal of pulse number identification.
Obviously, by set handling device on the 3D glasses, processor can identify the first synchronizing signal by manner of comparison, whether be the first synchronizing signal according to pulse number and pulse duration identification, show in conjunction with Fig. 7 and Fig. 8, according to identify in the second control signal with Fig. 7 and Fig. 8 in when 3 continuous impulse number of times and width, being judged as 3 continuous impulses is the first synchronizing signal.
Step S16: generate the 3rd control signal according to identification the first synchronizing signal, described the 3rd control signal is used for the switching sequence of the right and left eyes eyeglass of control 3D glasses.
According to the first synchronizing signal that identifies in step S15, further generate control signal by the processor of 3D glasses, that is: the 3rd control signal is controlled the switching sequence of 3D glasses by the 3rd control signal.
a kind of 3D synchronisation signal transmission method is provided in the present embodiment, generate the first synchronizing signal based on the 3D vision signal, again the first synchronizing signal is modulated by carrier signal and driving backlight control signal backlight, generate the first control signal, that is: new backlight control signal, be used for driving backlight, photoreceptor by the 3D glasses comes variation backlight in induced environment light again, light signal is converted into the signal of telecommunication, the signal of telecommunication i.e. the second control signal, identify the first synchronizing signal in the second control signal, generate the 3rd control signal of controlling the eyeglass switch according to the first synchronizing signal, control 3D glasses right and left eyes eyeglass switching sequence, can keep the right and left eyes image to show with 3D glasses right and left eyes eyeglass switch keeps synchronizeing.Compared with prior art, the present invention is transmitted synchronizing signal by line-of-sight propagation, has utilized the variation backlight of display device terminal, has realized that synchronizing signal transmits and receives, and like this, need not to arrange transmitter module, simplifies transmitter unit.
Adopt in the technical scheme of above-described embodiment in the present invention, due to the functional module of transmitter module not being set in transmitter unit again, on structural design, fore shell need not to reserve the space that arranges of transmitter module, like this, the thickness of complete machine and border width no longer are subjected to the transmitter module spatial limitation, are conducive to complete machine ultrathin or fore shell frame narrower limit more.
Embodiment two:
A kind of 3D synchronous transmission of signal device is provided in the present embodiment, in the embodiment of the present application, take the 3D liquid crystal display screen as display device, coordinates the 3D glasses to realize, wherein, display device can the 3D LCD TV, the display terminal of panel computer, mobile phone.
Fig. 9 is 3D synchronous transmission of signal device frame figure of the present invention, shows as Fig. 9, and described device comprises transmitter unit 13 and receiving element 22:
Described transmitter unit 13 is arranged in display device 1, and described transmitter module 13 can integratedly be arranged on signal processing circuit in the 3D LCD TV, also module can be set independently, separates with the signal processing circuit of TV, and it comprises:
Synchronizing signal generation unit 1301 generates the first synchronizing signal based on the 3D vision signal.
Further, described synchronizing signal generation unit 1301, the concrete reception 3D vision signal that is used for, obtain video synchronization signal from described 3D vision signal, in employing 38kHz carrier signal, video synchronization signal is modulated, obtain the first synchronizing signal, be a kind of digital pulse signal, comprise pulse number and pulse duration.The described video synchronization signal that obtains in described synchronizing signal generation unit 1301 comprises left-eye image video synchronization signal and eye image video synchronization signal.
Wherein, modulation system is the digit pulse modulation, is used for modulating pulse number of times and pulse duration.
Synchronizing signal generation unit 1301 functions also can be integrated in sequential control circuit, can be also circuit in sequential control circuit, can also separate with sequential control circuit independent setting.
Backlight signal modulating unit 1302 is connected with described synchronizing signal generation unit 1301, is used for described the first synchronizing signal and backlight control signal are modulated, and generates the first control signal.Wherein, described backlight control signal is pwm signal, and modulation can be adopted the digit pulse modulation system.
Further, backlight signal modulating unit 1302 receives the backlight control signal of sequential control circuit output and modulates, and wherein, the backlight signal modulating unit can be arranged in sequential control circuit, also can be set up in parallel with sequential control circuit.
Further, backlight driving unit 1303 effects are to drive backlight lightening work, wherein, the power of backlight illumination depends on the amplitude of the first control signal, the changes in amplitude of the first control signal can be brought the variation of backlight illumination, like this, the changes in amplitude of the first control signal causes the variation of surround lighting.
Described transmitter unit 13 comprises that synchronizing signal generation unit 1301, backlight signal modulating unit 1302 and backlight driving unit 1303 are arranged in display device, can be integrated in an integrated circuit, this integrated circuit is completed the functions of modules of synchronizing signal generation unit 1301, backlight signal modulating unit 1302 and backlight driving unit 1303, also can the integration section function in integrated circuit.
Described receiving element 22 is arranged in 3D glasses 2, and it comprises:
Synchronizing signal recognition unit 2202, be connected with described photoreceptor 2201, be used for from described the second described the first synchronizing signal of control signal identification, wherein, the first synchronizing signal is a kind of digital pulse signal, extract pulse duration and the pulse number of corresponding variation backlight from described the second control signal, according to described pulse duration and described the first synchronizing signal of pulse number identification.
Glasses timing control unit 2203 is connected with described synchronizing signal recognition unit 2202, is used for first synchronizing signal according to identification and generates the 3rd control signal, and described the 3rd control signal is used for the switching sequence of the right and left eyes eyeglass 21 of control 3D glasses 2.
Further, Figure 10 is a kind of receiving element circuit diagram of embodiment two, shows as Figure 10, and photoreceptor VD1 produces the signal of telecommunication and inputs to processor MCU (N3 in figure) through amplifying processing signals Vin.
Concrete MCU judgment mode is, when ambient light womp or prominent when dark, the level of Vin changes thereupon, when the level of the A0 of MCU pin judgement Vin has continuous six variations, thinking has glasses synchronous signal output, exports the control signal Glass1 of left and right eyeglass and Glass2 and controls opening of left and right eyeglass and close.
Implement three:
The present embodiment provides a kind of 3D television set, and Figure 11 is a kind of 3D television set schematic diagram of embodiment three, shows as Figure 11, and the 3D TV comprises the 3D glasses 2 that mate with display device 1 in display device 1 in embodiment two, embodiment two.
Wherein, display device 1 comprises signal processing circuit SOC, sequential control circuit TCON, LCDs LCD and transmitter unit.Signal processing circuit SOC receives outside 3D vision signal by peripheral interface circuit, carrying out signal processes, then export to sequential control circuit TCON through the LVDS signal, carrying out data-signal by sequential control circuit TCON separates with synchronizing signal, the mask data signal is exported to LCDs LCD by the LVDS signal, and data-signal is used for LCDs LCD epigraph and shows.
Wherein, synchronizing signal is further processed by transmitter unit, and processing method no longer repeats to give unnecessary details at this with embodiment one, and the first control signal of processing through transmitter unit is used for driving LCDs LCD image refreshing.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of claim of the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.
Claims (15)
1. a 3D synchronous transmission of signal system, comprise transmitter unit and receiving element, it is characterized in that,
Described transmitter unit is arranged in display device, and it comprises:
The synchronizing signal generation unit generates the first synchronizing signal based on the 3D vision signal;
The backlight signal modulating unit is connected with described synchronizing signal generation unit, is used for described the first synchronizing signal and backlight control signal are modulated, and generates the first control signal;
Backlight driving unit is connected with the backlight control signal modulating unit, receives described the first control signal, is used for driving described display device backlight module luminous;
Described receiving element is arranged in the 3D glasses, and it comprises:
Photoreceptor is used for comprising that the light signal of variation backlight is converted into the second control signal;
The synchronizing signal recognition unit is connected with described photoreceptor, is used for from described the second described the first synchronizing signal of control signal identification;
The glasses timing control unit is connected with described synchronizing signal recognition unit, is used for first synchronizing signal according to identification and generates the 3rd control signal, and described the 3rd control signal is used for the switching sequence of the right and left eyes eyeglass of control 3D glasses.
2. device according to claim 1, is characterized in that, described synchronizing signal generation unit generates the first synchronizing signal based on the 3D vision signal, is specially:
Receive the 3D vision signal;
Obtain video synchronization signal from described 3D vision signal;
Adopt carrier wave that video synchronization signal is modulated, obtain the first synchronizing signal.
3. method according to claim 2, is characterized in that, the described video synchronization signal that obtains in described synchronizing signal generation unit comprises left-eye image video synchronization signal and eye image video synchronization signal.
4. method according to claim 2, is characterized in that, the carrier wave in described backlight signal modulating unit is the 38kHz square-wave signal.
5. device according to claim 4, is characterized in that, described the first synchronizing signal is the continuous number pulse signal, and wherein, described synchronizing signal recognition unit is used for specifically being used for from described the second described the first synchronizing signal of control signal identification:
Extract pulse duration and the pulse number of corresponding variation backlight from described the second control signal, according to described pulse duration and described the first synchronizing signal of pulse number identification.
6. according to claim 1-5 arbitrary described devices, is characterized in that, in described synchronizing signal generation unit and described backlight signal modulating unit, modulation system is the digit pulse modulation.
7. according to claim 1-5 arbitrary described devices, is characterized in that, the described backlight control signal that adopts in described backlight signal modulating unit is pwm signal.
8. a 3D synchronisation signal transmission method, be applied to comprise in the 3D display device of display screen, it is characterized in that,
Generate the first synchronizing signal based on the 3D vision signal;
Described the first synchronizing signal and backlight control signal are modulated, generate the first control signal;
It is luminous that described the first control signal drives described display backlight;
The light signal that will comprise variation backlight is converted into the second control signal;
Described the first synchronizing signal of identification from described the second control signal;
Generate the 3rd control signal according to identification the first synchronizing signal, described the 3rd control signal is used for the switching sequence of the right and left eyes eyeglass of control 3D glasses.
9. method according to claim 8, is characterized in that, described step generates the first synchronizing signal based on the 3D vision signal, specifically comprises:
Receive the 3D vision signal;
Obtain video synchronization signal from described 3D vision signal;
Adopt carrier wave that video synchronization signal is modulated, obtain the first synchronizing signal.
10. method according to claim 9, is characterized in that, described video synchronization signal comprises left-eye image video synchronization signal and eye image video synchronization signal.
11. method according to claim 9 is characterized in that, described carrier wave is the 38kHz square-wave signal.
12. method according to claim 11 is characterized in that, described the first synchronizing signal is digital pulse signal, and wherein, described first synchronizing signal of identifying from described the second control signal of step is specially:
Extract pulse duration and the pulse number of corresponding variation backlight from described the second control signal, according to above-mentioned pulse duration and described the first synchronizing signal of pulse number identification.
13. according to claim 8-12 arbitrary described methods is characterized in that, describedly are modulated to digit pulse modulation.
14. according to claim 8-12 arbitrary described methods is characterized in that described backlight control signal is pwm signal.
15. a 3D television set is characterized in that, described 3D TV comprises the arbitrary described display device of claim 1-7, and is equipped with the arbitrary described 3D glasses of claim 1-7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100368235A CN103152593A (en) | 2013-01-31 | 2013-01-31 | Three-dimensional (3D) synchronizing signal transmission method, 3D synchronizing signal transmission device and 3D television |
| PCT/CN2013/086873 WO2014117557A1 (en) | 2013-01-31 | 2013-11-11 | Method and apparatus for transmitting 3d synchronous signal, and 3d television |
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| CN2013100368235A CN103152593A (en) | 2013-01-31 | 2013-01-31 | Three-dimensional (3D) synchronizing signal transmission method, 3D synchronizing signal transmission device and 3D television |
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| CN (1) | CN103152593A (en) |
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| WO2014117557A1 (en) | 2014-08-07 |
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