CN102572480A - Shutter 3D LCD TV ghosting eliminating device and method for not influencing brightness - Google Patents
Shutter 3D LCD TV ghosting eliminating device and method for not influencing brightness Download PDFInfo
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Abstract
The invention belongs to the field of shutter 3D LCD TV signal processing, and particularly relates to a shutter 3D LCD TV ghosting eliminating method for not influencing brightness so as to avoid the phenomenon of ghosting caused by liquid crystal response time. For solving the problems in the prior art, the invention provides the shutter 3D LCD TV ghosting eliminating method for not influencing brightness. By repeatedly outputting a left eye frame L signal and a right eye frame R signal in the format of LLRR, and then controlling the synchronous closing and opening of a 3D left eye spectacle or a 3D right eye spectacle through a main chip as well as the backlight of an LED, the left eye spectacle is enabled to be capable of seeing a pure L frame only and the right eye spectacle is enabled to be capable of seeing a pure R frame only.
Description
Technical field
The present invention be directed to shutter 3D LCD TV signal processing field, a kind of shutter 3D LCD TV that especially relates to the ghost phenomena proposition that causes owing to the liquid crystal response time does not influence the ghost eliminating apparatus and the method for brightness.
Background technology
Liquid crystal panel is as the main flow parts that present terminal shows, has ultra-thin, light, low-power consumption, high definition resolution, high reliability, long service life, advantage such as radiationless; But liquid crystal panel is the maintenance display device, liquid crystal molecule reaction speed slow (then the liquid crystal panel reaction speed is slower), and general lasting about 8ms, in addition higher.
The 3D liquid crystal panel field frequency of main flow is 100hz or 120hz at present, and for ease of describing, following improve parameter unification is participated in computing with 120hz.LED liquid crystal display screen field frequency 120hz that is to say that this LED liquid crystal display screen per second refreshes 120 two field pictures, and every two field picture level has 2200 pixels, and 1125 row are vertically arranged; Clock is 2200*1125*120=297Mhz, and the visual range level has 1920 pixels, and 1080 row are vertically arranged; That is to say that level has 280 points not show, vertically have 45 row not show; In Principles of Television, the cycle that does not have to show is blanking cycle, is divided into horizontal blackout period, field blackout period; Be used to prepare the demonstration of next line horizontal blackout period, be used to prepare the demonstration of next frame field blackout period, because this patent is only relevant with the field sequential; So (unit: OK), like Fig. 1: every two field picture (left-eye frame or right eye frame) shows 1/120=8.33ms, and line frequency is 1125*120=135000hz to provide the field synchronization sequential chart; So every capable demonstration time is 0.0074074ms, be 0.0074074 *, 45=0.3335ms field blackout period.
The 3D form of main flow mainly contains following several kinds at present: SBS (side by side), TB (top and bottom), FP (frame packet); Be the display mode that example is introduced the 3D form with SBS below, like Fig. 2, general shutter mode all is to shield on frame preface (FRAME SEQUENCE) mode; Promptly with LRLRLR ... Shield on the sequence; So we need the SBS format conversion is like Fig. 3, master chip sends the 3D synchronizing signal through liquid crystal module, 3D synchronous transmitter, 3D synchronous receiver control 3D left eye mirror or 3D right eye mirror switch or closure, when memory buffer output left-eye frame L signal; Open 3D left eye mirror; During memory buffer output right eye frame R signal, open the right eye mirror, through the synthetic 3D rendering of human brain.According to the 3D image-forming principle, have only the L two field picture to advance left eye, the R two field picture advances right eye, could synthesize the 3D rendering of clear no ghost image.
According to the analysis of front, blanking cycle is 0.3335ms, so after the L frame shows; Cross 0.3335ms and show the R frame, but because the liquid crystal molecule reaction speed is slow, about generally about 8ms; So can residual L two field picture when showing the R frame, can residual R two field picture when showing the L frame, influence 3D effect even do not have the functional deficiency of 3D effect; For minimizing is crosstalked, method commonly used at present is exactly when every frame shows, to postpone to open 3D left eye mirror or 3D right eye mirror (like Fig. 4), does two problems like this: the brightness and contrast who greatly reduces display screen on the one hand; Influence subjective effect, can only improve on the other hand and crosstalk, but can not stop.
Summary of the invention
Technical problem to be solved by this invention is: the problem to above-mentioned existence provides a kind of shutter 3D LCD TV not influence the ghost eliminating apparatus and the method for brightness.Through left-eye frame L signal, right eye frame R signal are repeated output format is LLRR, again through master chip control 3D left eye mirror or 3D right eye mirror synchro switch or closed and LED-backlit lamp, makes the left eye mirror only see that pure L frame, right eye mirror only see pure R frame.
The technical scheme that the present invention adopts is following:
A kind of shutter 3D LCD TV does not influence the ghost eliminating apparatus of brightness, comprises governor circuit, 3D glasses control circuit, and wherein governor circuit comprises master chip, back of the body lamp switch control circuit, memory, liquid crystal module, 3D synchronous transmitter; 3D glasses control circuit comprises 3D synchronous receiver and 3D left eye mirror, 3D right eye mirror.Said master chip one port is connected with memory is two-way; Master chip second port, master chip the 3rd port, master chip the 4th port connect respectively at backlight switch control circuit input, liquid crystal module first port, 3D synchronous transmitter input; The backlight switch control circuit output is connected with liquid crystal module second port; Liquid crystal module the 3rd port is connected with the LED liquid crystal display screen; 3D synchronous transmitter output is connected with 3D synchronous receiver input, and 3D synchronous receiver output is connected with 3D left eye mirror, 3D right eye mirror respectively.
Said 3D synchronous transmitter circuit comprises first processor, first radio receiving transmitting module.Said first processor input receives and is connected with master chip the 4th port, and the first processor output is connected with first radio receiving transmitting module; The second radio receiving transmitting module input receives the first radio receiving transmitting module output and sends signal, and the second radio receiving transmitting module output is connected with second processor, and the second processor output connects respectively at 3D left eye mirror, 3D right eye mirror.
A kind of shutter 3D LCD TV does not influence the ghost image removing method of brightness, comprises step:
Step S1: master chip is left-eye frame L signal, right eye frame R signal with the 3D signal resolution of input, and it is stored in memory, wherein every frame repeated storage twice, and be that differential signal is input in the liquid crystal module with the memory stores conversion of signals;
Step S2: improve the master chip operating frequency, control backlight switch control circuit output signal controlling liquid crystal module;
Step S3: master chip sends the 3D synchronizing signal and gives the 3D synchronous transmitter, and the 3D synchronous receiver receives the control signal that the 3D synchronous transmitter sends, and control 3D left eye mirror or 3D right eye mirror switch are with closed; Master chip is through backlight switch control circuit control liquid crystal module LED-backlit lamp simultaneously;
Step S4: the switch through liquid crystal module LED-backlit lamp carries out the signal demonstration with signal at the LED liquid crystal display screen.
The master chip original frequency is 120Hz among the said step S2, and it is the driving field frequency of 240Hz that master chip is handled back output driving field frequency through frequency multiplication of phase locked loop, the work of control backlight switch control circuit.
Said step S3 backlight switch control circuit control liquid crystal module LED-backlit luminaire body process is: said backlight switch control circuit master chip output left-eye frame L signal to right eye frame R differential signal or right eye frame R signal in left-eye frame L differential signal handoff procedure; Backlight switch control circuit control liquid crystal module LED-backlit lamp; Make that liquid crystal module LED-backlit lamp is that black plug does not carry out the signal demonstration; Said backlight switch control circuit the left-eye frame L signal of memory output to left-eye frame L differential signal or right eye frame R signal in right eye frame R differential signal handoff procedure, backlight switch control circuit control liquid crystal module LED-backlit lamp makes that liquid crystal module LED-backlit lamp is backlightly to drive capable signal into and show.
3D left eye mirror among the said step S3,3D right eye mirror control detailed process do, when master chip is exported the first simple eye frame, when the second simple eye frame difference signal is given the liquid crystal module, is opened 3D left eye mirror, this moment 3D left eye mirror printing opacity, 3D right eye mirror is closed; When master chip is exported the 3rd simple eye frame, the 4th simple eye frame difference signal to the liquid crystal module; Open 3D right eye mirror; This moment 3D right eye mirror printing opacity, 3D left eye mirror is closed, setting the first left-eye frame L signal in proper order according to storage in the memory is the first simple eye frame; The second left-eye frame L signal is the second simple eye frame, and the first right eye frame R signal is that the 3rd simple eye frame, the second right eye frame R signal are the 4th simple eye frame.
Said 3D synchronous transmitter circuit comprises first processor, first radio receiving transmitting module.Said first processor input receives and is connected with master chip the 4th port, and the first processor output is connected with first radio receiving transmitting module; The second radio receiving transmitting module input receives the first radio receiving transmitting module output and sends signal, and the second radio receiving transmitting module output is connected with second processor, and the second processor output connects respectively at 3D left eye mirror, 3D right eye mirror, by that analogy.
In sum, owing to adopted technique scheme, the invention has the beneficial effects as follows:
Improve the output clock of master chip; Driving field frequency with 240HZ is controlled LED-backlit lamp switch frequency through backlight switch control circuit; And master chip is opened at a distance from frame synchronization through 3D synchronizing signal control 3D left eye mirror or 3D right eye mirror, and in memory buffer, memory buffer repeats output with left-eye frame L signal, right eye frame R signal and (repeats output by frame when promptly exporting master chip with the 3D signal storage of resolving then; LLRR); Guarantee that secondary left-eye frame L signal and secondary right eye frame R signal are pure left-eye frame L signal and right eye frame R signal and do not comprise handoff procedure, the actual picture frequency of seeing of each eye remains 60Hz like this, and has been complete whole 60Hz; Some loss does not have yet; So not only can eliminate ghost phenomena, and can guarantee that contrast, stereovision are unaffected, consistent with the 2D subjective effect.
Description of drawings
The present invention will explain through example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is a 3D system block diagram in the prior art
Fig. 2 is a prior art midfield timing sequence diagram;
Fig. 3 is a SBS pattern display mode in the 3D form in the prior art;
Fig. 4 is the display mode after the SBS format conversion among Fig. 2;
Fig. 5 a is a governor circuit schematic diagram of the present invention;
Fig. 5 b is a 3D glasses control circuit schematic diagram of the present invention;
Fig. 6 is a frame storage format of the present invention;
Fig. 7 is a left-eye frame right eye frame storage sequential of the present invention;
Fig. 8 is SECO figure of the present invention.
Embodiment
Disclosed all characteristics in this specification, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this specification (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
Shown in Fig. 5 a, Fig. 5 b; A kind of shutter 3D LCD TV does not influence the ghost eliminating apparatus of brightness; Comprise governor circuit, 3D glasses control circuit, wherein governor circuit comprises master chip, back of the body lamp switch control circuit, memory, liquid crystal module, 3D synchronous transmitter; 3D glasses control circuit comprises 3D synchronous receiver and 3D left eye mirror, 3D right eye mirror.Said master chip one port is connected with memory is two-way; Master chip second port, master chip the 3rd port, master chip the 4th port connect respectively at backlight switch control circuit input, liquid crystal module first port, 3D synchronous transmitter input; The backlight switch control circuit output connects in liquid crystal module second port; Liquid crystal module the 3rd port is connected with the LED liquid crystal display screen; 3D synchronous transmitter output is connected with 3D synchronous receiver input, and 3D synchronous receiver output is connected with 3D left eye mirror, 3D right eye mirror respectively.Liquid crystal module comprises LED-backlit lamp and backlight lamp control assembly, power circuit, signal processing circuit etc.
The course of work is: the left-eye frame L signal after master chip will receive, right eye frame R signal are according to LLRR ... Mode is stored in memory simultaneously; Master chip is simultaneously through backlight switch control circuit control liquid crystal module LED-backlit lamp switch; Make liquid crystal module LED-backlit lamp black plug or backlight opening, master chip send the pwm signal control command simultaneously to the 3D synchronous transmitter; The 3D synchronous receiver receives 3D synchronous transmitter order control 3D glasses switch, and (when master chip sends to liquid crystal module simultaneously with the left-eye frame L differential signal of memory stores, 3D synchronous receiver control 3D left eye mirror is opened, and 3D right eye mirror is closed; When master chip sends to liquid crystal module simultaneously with the right eye frame R differential signal in the memory; 3D synchronous receiver control 3D right eye mirror is opened; 3D left eye mirror is closed); Black plug and backlight opening through liquid crystal module LED-backlit lamp make the LED liquid crystal display screen carry out the demonstration of corresponding signal, and the left-eye frame L signal and the right eye frame R signal that make the LED liquid crystal display screen show are pure left-eye frame L signal and pure right eye frame R signal.
Master chip is the control centre of entire product, have can the output signal of memory be carried out the function that differential signal is handled, and to resolve the 3D signal is left-eye frame L signal, right eye frame R signal; Primary processor sends 3D Synchronous Processing signal (master chip exports the switching signal that the 3D synchronous transmitter is used to control the 3D glasses to through the PWM waveform control signal) and gives the 3D synchronous transmitter.
Backlight switch control circuit (realizing pwm control signal output through processor) receives the master chip order and control liquid crystal module LED-backlit lamp is backlight opening; Perhaps black plug; Promptly control the LED liquid crystal display screen as requested and show that the switch of LED-backlit lamp makes the LED liquid crystal display screen carry out the demonstration of corresponding signal.
Memory generally is used for L Frame that the parameter computing resolves master chip, R Frame according to LRLR ... Mode is stored; Master chip call store in the memory LLRR ... Data; And be differential signal with the data processing of calling, and the output differential signal is to liquid crystal module;
3D Synchronous Processing signal realizes that through master chip the PWM waveform control signal exports the 3D synchronous transmitter to.
3D synchronous transmitter circuit comprises first processor, first radio receiving transmitting module.Said first processor receives the signal of time-sequence control module; Through format conversion is to be sent to 3D synchronous receiver (wherein first radio receiving transmitting module can use WIFI module or less radio-frequency sending module to replace) through first radio receiving transmitting module again through the data format of first radio receiving transmitting module transmission;
The 3D synchronous receiver receives the data of 3D synchronous transmitter according to RF-wise or infrared, and controls opening and closing of 3D left eye mirror or 3D right eye mirror, and circuit comprises second processor, second radio receiving transmitting module.Said second radio receiving transmitting module receives the wireless signal that the 3D synchronous transmitter sends, and is to control the control signal of 3D left eye mirror, the opening and closing of 3D right eye mirror through second processor with the wireless format conversion of signals again.(wherein second radio receiving transmitting module can use WIFI module or less radio-frequency sending module to replace).
The 3D glasses comprise 3D left eye mirror, 3D right eye mirror, and the 3D glasses receive the control command of 3D synchronous receiver, open 3D left eye mirror or 3D right eye mirror;
The LED liquid crystal display screen shows through opening (backlight opening) or closing (black plug) of liquid crystal module LED-backlit lamp accordingly;
Like Fig. 6, master chip is left-eye frame L signal, right eye frame R signal with the 3D signal resolution, and is stored in the memory; Twice of images of left and right eyes frame storage; Storage format is LLRRLLRR ..., as shown in Figure 7, per four frame data carry out data processing as a unit; Order output behind memory stores four frames; The master chip field frequency rises to the driving field frequency of 240Hz through field frequency behind the frequency multiplication of phase locked loop by initial 120Hz, (this signal is used to control the frequency signal that liquid crystal module LED-backlit lamp is closed and opened, the demonstration of promptly controlling LED liquid crystal display screen corresponding signal simultaneously with do not show)
As shown in Figure 8, be the L frame if define first frame, when first frame of output frame preface, backlight switch control circuit control liquid crystal module LED-backlit lamp is black plug (that is: close LED-backlit lamp); There is the handoff procedure of liquid crystal molecule from left-eye frame L signal to left-eye frame L signal in second frame when showing; But owing to be left-eye frame L signal all; The LED-backlit lamp of backlight switch control circuit control this moment liquid crystal module is backlight opening (that is: light the LED-backlit lamp, the switch of LED-backlit lamp is presented on the LED liquid crystal display screen); When the 3rd frame (right eye frame R signal) of output frame preface, owing to there be the handoff procedure of liquid crystal molecule from left-eye frame L signal to right eye frame R signal, backlight switch control circuit control liquid crystal module LED-backlit lamp is black plug (that is: close LED-backlit lamp); When the 4th frame (R frame) shows; Have the handoff procedure of liquid crystal molecule from right eye frame R signal to right eye frame R signal, but owing to all be right eye frame R signal, backlight switch control circuit control liquid crystal module LED-backlit lamp is backlight opening (that is: light LED-backlit lamp); So circulation; Switch through the LED-backlit lamp will be eliminated ghost phenomena, and the LED liquid crystal display screen shows through observing, generation be exactly pure left-eye frame L signal and right eye frame R signal.
At control liquid crystal module LED-backlit lamp switch simultaneously; What master chip was indirect also controls 3D left eye mirror, 3D right eye mirror in the 3D glasses; Concrete measure is: at the first simple eye frame, the second simple eye frame of output frame preface, 3D glasses switch is high, opens 3D left eye mirror; Have only 3D left eye mirror printing opacity this moment, and 3D right eye mirror is closed; When the 3rd simple eye frame of output frame preface, the 4th simple eye frame, 3D glasses switch is low, opens 3D right eye mirror; Have only 3D right eye mirror printing opacity this moment, and 3D left eye mirror is closed, so circulation; Simultaneously when the first simple eye frame, the 3rd simple eye frame; Close the LED-backlit lamp, the second simple eye frame, the 4th simple eye frame are turned on the LED-backlit lamp, so what see through 3D left eye mirror and 3D right eye mirror all is pure left-eye frame L signal L or right eye frame R signal; So do not crosstalk basically; It is the first simple eye frame that the storage that wherein is stored in memory according to master chip is set the first left-eye frame L signal in proper order, and the second left-eye frame L signal is the second simple eye frame, and the first right eye frame R signal is that the 3rd simple eye frame, the second right eye frame R signal are the 4th simple eye frame ...
Embodiment one:
The ghost image removing method that a kind of shutter 3D LCD TV does not influence brightness comprises step:
Step S1: master chip is left-eye frame L signal, right eye frame R signal with the 3D signal resolution of input, and it is stored in memory, wherein every frame repeated storage twice, and be that differential signal is input in the liquid crystal module with the memory stores conversion of signals;
Step S2: improve the master chip operating frequency; Control backlight switch control circuit output signal controlling liquid crystal module; Wherein the master chip original frequency is 120Hz, and it is the driving field frequency of 240Hz that master chip is handled back output driving field frequency through frequency multiplication of phase locked loop, the work of control backlight switch control circuit;
Step S3: master chip sends the 3D synchronizing signal and gives the 3D synchronous transmitter, and the 3D synchronous receiver receives the control signal that the 3D synchronous transmitter sends, and control 3D left eye mirror or 3D right eye mirror switch are with closed; Master chip is through backlight switch control circuit control liquid crystal module LED-backlit lamp simultaneously;
Step S4: the switch through liquid crystal module LED-backlit lamp carries out the signal demonstration with signal at the LED liquid crystal display screen.
Embodiment two: on embodiment one basis; Step S3 backlight switch control circuit control liquid crystal module LED-backlit luminaire body process is: said backlight switch control circuit master chip output left-eye frame L signal to right eye frame R differential signal or right eye frame R signal in left-eye frame L differential signal handoff procedure; Backlight switch control circuit control liquid crystal module LED-backlit lamp; Make that liquid crystal module LED-backlit lamp is that black plug does not carry out the signal demonstration; Said backlight switch control circuit the left-eye frame L signal of memory output to left-eye frame L differential signal or right eye frame R signal in right eye frame R differential signal handoff procedure, backlight switch control circuit control liquid crystal module LED-backlit lamp makes that liquid crystal module LED-backlit lamp is backlightly to drive capable signal into and show.
Embodiment three: on embodiment two bases; 3D left eye mirror, 3D right eye mirror control detailed process do among the said step S3, when master chip is exported the first simple eye frame, when the second simple eye frame difference signal is given the liquid crystal module, opened 3D left eye mirror; This moment 3D left eye mirror printing opacity, 3D right eye mirror is closed; When master chip is exported the 3rd simple eye frame, the 4th simple eye frame difference signal to the liquid crystal module; Open 3D right eye mirror; This moment 3D right eye mirror printing opacity, 3D left eye mirror is closed, setting the first left-eye frame L signal in proper order according to storage in the memory is the first simple eye frame; The second left-eye frame L signal is the second simple eye frame, and the first right eye frame R signal is that the 3rd simple eye frame, the second right eye frame R signal are the 4th simple eye frame.
Embodiment four: on embodiment three bases, said 3D synchronous transmitter circuit comprises first processor, first radio receiving transmitting module.Said first processor input receives and is connected with master chip the 4th port, and the first processor output is connected with first radio receiving transmitting module; The second radio receiving transmitting module input receives the first radio receiving transmitting module output and sends signal, and the second radio receiving transmitting module output is connected with second processor, and the second processor output connects respectively at 3D left eye mirror, 3D right eye mirror.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (7)
1. a shutter 3D LCD TV does not influence the ghost eliminating apparatus of brightness, it is characterized in that comprising governor circuit, 3D glasses control circuit, and wherein governor circuit comprises master chip, back of the body lamp switch control circuit, memory, liquid crystal module, 3D synchronous transmitter; 3D glasses control circuit comprises 3D synchronous receiver and 3D left eye mirror, 3D right eye mirror; Said master chip one port is connected with memory is two-way; Master chip second port, master chip the 3rd port, master chip the 4th port connect respectively at backlight switch control circuit input, liquid crystal module first port, 3D synchronous transmitter input; The backlight switch control circuit output is connected with liquid crystal module second port; Liquid crystal module the 3rd port is connected with the LED liquid crystal display screen, and 3D synchronous transmitter output is connected with 3D synchronous receiver input, and 3D synchronous receiver output is connected with 3D left eye mirror, 3D right eye mirror respectively.
2. a kind of shutter 3D LCD TV according to claim 1 does not influence the ghost eliminating apparatus of brightness; It is characterized in that said 3D synchronous transmitter circuit comprises first processor, first radio receiving transmitting module; Said first processor input receives and is connected with master chip the 4th port, and the first processor output is connected with first radio receiving transmitting module; The second radio receiving transmitting module input receives the first radio receiving transmitting module output and sends signal, and the second radio receiving transmitting module output is connected with second processor, and the second processor output connects respectively at 3D left eye mirror, 3D right eye mirror.
3. a kind of shutter 3D LCD TV according to claim 1 does not influence the ghost image removing method of brightness, it is characterized in that comprising step:
Step S1: master chip is left-eye frame L signal, right eye frame R signal with the 3D signal resolution of input, and it is stored in memory, wherein every frame repeated storage twice, and be that differential signal is input in the liquid crystal module with the memory stores conversion of signals;
Step S2: improve the master chip operating frequency, control backlight switch control circuit output signal controlling liquid crystal module;
Step S3: master chip sends the 3D synchronizing signal and gives the 3D synchronous transmitter, and the 3D synchronous receiver receives the control signal that the 3D synchronous transmitter sends, and control 3D left eye mirror or 3D right eye mirror switch are with closed; Master chip is through backlight switch control circuit control liquid crystal module LED-backlit lamp simultaneously;
Step S4: the switch through liquid crystal module LED-backlit lamp carries out the signal demonstration with signal at the LED liquid crystal display screen.
4. a kind of shutter 3D LCD TV according to claim 3 does not influence the ghost image removing method of brightness; It is characterized in that the master chip original frequency is 120Hz among the said step S2; It is the driving field frequency of 240Hz that master chip is handled back output driving field frequency through frequency multiplication of phase locked loop, the work of control backlight switch control circuit.
5. a kind of shutter 3D LCD TV according to claim 4 does not influence the ghost image removing method of brightness; It is characterized in that said step S3 backlight switch control circuit control liquid crystal module LED-backlit luminaire body process is: said backlight switch control circuit master chip output left-eye frame L signal to right eye frame R differential signal or right eye frame R signal in left-eye frame L differential signal handoff procedure; Backlight switch control circuit control liquid crystal module LED-backlit lamp; Make that liquid crystal module LED-backlit lamp is that black plug does not carry out the signal demonstration; Said backlight switch control circuit the left-eye frame L signal of memory output to left-eye frame L differential signal or right eye frame R signal in right eye frame R differential signal handoff procedure, backlight switch control circuit control liquid crystal module LED-backlit lamp makes that liquid crystal module LED-backlit lamp is backlightly to drive capable signal into and show.
6. do not influence the ghost image removing method of brightness according to claim 4 or 5 described a kind of shutter 3D LCD TVs; It is characterized in that 3D left eye mirror among the said step S3,3D right eye mirror control detailed process do; When master chip is exported the first simple eye frame, the second simple eye frame difference signal to the liquid crystal module; Open 3D left eye mirror, this moment 3D left eye mirror printing opacity, 3D right eye mirror is closed; When master chip is exported the 3rd simple eye frame, the 4th simple eye frame difference signal to the liquid crystal module; Open 3D right eye mirror; This moment 3D right eye mirror printing opacity, 3D left eye mirror is closed, setting the first left-eye frame L signal in proper order according to storage in the memory is the first simple eye frame; The second left-eye frame L signal is the second simple eye frame, and the first right eye frame R signal is that the 3rd simple eye frame, the second right eye frame R signal are the 4th simple eye frame.
7. a kind of shutter 3D LCD TV according to claim 6 does not influence the ghost image removing method of brightness; It is characterized in that said 3D synchronous transmitter circuit comprises first processor, first radio receiving transmitting module; Said first processor input receives and is connected with master chip the 4th port, and the first processor output is connected with first radio receiving transmitting module; The second radio receiving transmitting module input receives the first radio receiving transmitting module output and sends signal, and the second radio receiving transmitting module output is connected with second processor, and the second processor output connects respectively at 3D left eye mirror, 3D right eye mirror.
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| CN111741282A (en) * | 2020-07-23 | 2020-10-02 | 深圳市安卓安科技有限公司 | Method for realizing 3D effect by combining display screen with shutter 3D glasses |
| WO2023082346A1 (en) * | 2021-11-09 | 2023-05-19 | 深圳市奥拓电子股份有限公司 | Time division multiplexing led display driving method and chip thereof |
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| CN107665681B (en) * | 2017-09-26 | 2020-06-05 | 武汉华星光电技术有限公司 | Liquid crystal display driving method, system and computer readable medium |
| CN107665681A (en) * | 2017-09-26 | 2018-02-06 | 武汉华星光电技术有限公司 | Liquid crystal display driving method, system and computer-readable medium |
| CN111741282A (en) * | 2020-07-23 | 2020-10-02 | 深圳市安卓安科技有限公司 | Method for realizing 3D effect by combining display screen with shutter 3D glasses |
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