CN1290344C - Technology for making 100HZ field frequency color TV set have stereogram function - Google Patents
Technology for making 100HZ field frequency color TV set have stereogram function Download PDFInfo
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- CN1290344C CN1290344C CN 98123342 CN98123342A CN1290344C CN 1290344 C CN1290344 C CN 1290344C CN 98123342 CN98123342 CN 98123342 CN 98123342 A CN98123342 A CN 98123342A CN 1290344 C CN1290344 C CN 1290344C
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Abstract
The present invention relates to technology realizing a no-flicker stereoscopic television appreciating function on a color television of which the field frequency is 100Hz. The technology is basically characterized in that Frequency doubling odd and even field signals of a color television of which the field frequency is 100Hz are compiled into an original odd field image and an original even field image, and thus, time dividing stereoscopic television picture signals of the frequency doubling odd and even field are formed; the odd and even field synchronous signals are extracted and are processed by frequency doubling to form control signals of a pair of liquid crystal glasses and a synchronous switch; the liquid crystal glasses receive the frequency doubling odd and even field synchronous control signals and control the lenses of the liquid crystal glasses and a television image synchronous switch so as to enable the audience to watch by no-flicker stereoscopic television images of a fractional type by the color television of which the field frequency is 100Hz.
Description
Watch the method for three-dimensional television image a lot, but fundamental method has only one, Here it is must guarantee that the image that image that left eye is seen and right eye are seen is distinguishing.If the eyes with two video camera anthropomorphic dummies are taken three-dimensional television image, a shot by camera image wherein as left-eye image, and another shot by camera image as eye image, respectively this two width of cloth image is sent to observer's left eye and right eye then, like this, the observer will see a width of cloth stereo-picture.At present broadcast television technique with parity field every the field images, if take three-dimensional television image with two video cameras, left-eye image can be enrolled odd field (or even field), eye image is enrolled even field (or odd field), so still, can utilize the parity field in original broadcast television technique to transmit this three-dimensional television image every the field Methods for Coding, transmit because left-eye image and eye image are timesharing in time, so we become time division type three-dimensional television image coding techniques with the coding method and the transmission method of this three-dimensional television image.When showing, shown image is shown by left-eye image and eye image timesharing on the television screen, if spectators utilize certain means, can guarantee that left eye only sees left-eye image, and right eye is only seen eye image, and then spectators promptly can see three-dimensional television image.One of implementation method of this means is to adopt the liquid crystal optical switch technology of synchro switch.When showing left-eye image on the television screen, the liquid crystal optical switch before spectators' left eye is opened, and the liquid crystal optical switch before the right eye turn-offs.When showing eye image on the television screen, liquid crystal optical switch before the right eye is opened, liquid crystal optical switch before the left eye turn-offs, guarantee that thus spectators' left eye and right eye can see left-eye image and eye image that video camera is taken respectively independently, and in observer's brain the compound stereoscopic television image.
This " time division type stereo TV technique " has been applied to broadcasting television technology field, but have a problem still not obtain satisfactory solution, the flicker problem of Here it is picture.Because the coding techniques of this time division type stereo TV technique is to utilize odd field to enroll left-eye image, utilize even field to enroll eye image, therefore when showing, the image that every eye is seen has only 25 width of cloth pictures in the per second (being 30 width of cloth pictures) when television system is NTSC, so can feel film flicker, it is uncomfortable that spectators can feel, and cause visual fatigue easily.One of method that solves is that the television set display frequency is improved, and makes frequency when showing left eye and eye image bring up to per second 50 width of cloth pictures (when television system is 60 width of cloth pictures during for NTSC), so just can't see the flicker of picture.
The television set of 100HZ comes out at present, as Konka's colour TV, Haier's colour TV, panda colour TV, Skyworth's colour TV etc.Its function is the image definition when improving large screen display image and reduces image flicker.Because when television screen surpassed 29 inches, every more than 300 horizontal scanning line can obviously be felt by spectators, and the sensation of image definition is descended.Simultaneously picture strengthens, and after brightness increased, the critical flicker frequency of human eye can improve, so the flicker perception of picture is obvious can be than the small screen, low-light level the time.Utilize the technology of field frequency like this, can allow horizontal scanning line double, reach one more than 600, both can improve definition, can improve the image flicker problem of large-screen high brightness again for 100HZ.The 100HZ color television set is not for showing that three-dimensional tv images designs, if but a kind of new technology is applied in the 100HZ color television set of listing at present, just can make its generation can view and admire the function of flicker free three-dimensional television image, problem to be solved by this invention that Here it is.
The present invention relates to a kind of technology that 100HZ color television set realization flicker free three-dimensional television image is viewed and admired function that has now of utilizing.It comprises the coding method of frequency multiplication parity field, the liquid crystal glasses synchronized signal extracting method of 100HZ color television set, the driving method of three-dimensional liquid crystal glasses.Realize that at present 100HZ color television set parity field image signal encoding scheme has multiple, all be for realizing that different Digital Image Processing purposes designs, but can view and admire the flicker free three-dimensional tv images for the 100HZ color television set that can make present production and just must adopt special coded system, after soon field frequency will be promoted to 100HZ, left-eye image and eye image (or eye image and left-eye image) must successively enrolled with respect to the position of former odd field, and also successively enrolling left-eye image and eye image (or eye image and left-eye image) with respect to the position of former even field, form frequency multiplication parity field time-division three-dimensional image signal.Parity field signal extraction in the video input signals is come out and carry out process of frequency multiplication, control the infrared synchronous control signal of infrared synchronous signal transmitter emission control liquid crystal glasses, or directly extract the field synchronization control signal in the self-fields frequency-doubled signal, control the synchronizing signal of infrared synchronous signal transmitter emission control liquid crystal glasses.Liquid crystal glasses receives liquid crystal optical switch and the television image synchro switch that will control left eye and right eye after this control signal, and to guarantee that when TV showed left-eye image, the liquid crystal lens before the left eye was opened, the liquid crystal lens before the right eye is closed.And TV is when following generation eye image, and liquid crystal lens is opened before the right eye, and the liquid crystal lens before the left eye is closed, and spectators promptly can see the time-division three-dimensional television image of a width of cloth flicker free.The another kind of method of watching this three-dimensional television image is directly to control the optical switch of wired liquid crystal glasses by the liquid crystal glasses synchronous control signal of television set internal extraction, with the purpose that realizes watching the flicker free three-dimensional television image equally.
Below in conjunction with accompanying drawing the present invention is further illustrated.
Fig. 1. be 100HZ color television set frequency multiplication parity field time-division three-dimensional television image signal encoding scheme.The 1st, odd field picture signal, the 2nd, even field picture signal, the 3rd, odd field picture signal, the 4th, even field picture signal.The 16th, be odd field, the 17th, even field.13, the 14th, field sync signal, the 15th, the field sync signal after the frequency multiplication.7 and 9 is the odd field picture signals with 1 the same content, but field frequency is doubled.10 and 12 is with 2 the same even field picture signals, but product also is enhanced one times.Be originally and utilize odd field picture signal 1 to enroll the left-eye image signal, and utilize even field picture signal 2 to enroll eye image signal (also can on the contrary), must make original parity field picture signal still arrange after the frequency multiplication on the scene every the field, the even field picture signal that promptly reflects the odd field picture signal of left-eye image and reflection eye image is originally arranges every the field, after the frequency multiplication on the scene, its image encoding still must be an odd field reflection left-eye image, even field reflection eye image, just field frequency doubles, Here it is frequency multiplication parity field time-division three-dimensional television image signal.The 18th, the odd field after the frequency multiplication, the 19th, the even field after the frequency multiplication.Equally, 5 and 7 be with 1 before the odd field picture signal of the same content of odd field, be to be read by double after the frequency multiplication on the scene.6 and 8 are and 1 former the same even field picture signal, are to be read by double after the frequency multiplication on the scene equally.
Fig. 2. be the extraction and the generation schematic diagram of liquid crystal glasses synchronous control signal.The 1st, odd field picture signal, the 2nd, even field picture signal, the 16th, odd field, the 17th, even field, the 13rd, field sync signal.The parity field synchronizing signal of reaction odd field signal 16 and reaction even field signal 17 is extracted, form parity field synchronizing signal 20.With field sync signal 13 frequencys multiplication, form frequency multiplication field sync signal 21, utilize parity field synchronizing signal 20 and frequency multiplication field sync signal 21 to form frequency multiplication parity field synchronizing signal 22.This is the key of control liquid crystal glasses synchro switch.The left eyeglass lens that guarantees liquid crystal glasses when 22 high level is opened, and the right eye eyeglass is closed, and when 22 low levels, the left eyeglass lens of liquid crystal glasses is closed, and the liquid crystal lens before the right eye is opened (or opposite).
Fig. 3. the drive signal that is liquid crystal glasses produces schematic diagram.1 and 2 is odd field picture signal and even field picture signal, the 20th, and parity field synchronizing signal, the 5,7,9, the 11st, the odd field picture signal after the frequency multiplication, the 6,8, the 10th, the even field picture signal after the frequency multiplication.The 22nd, the parity field synchronizing signal after the frequency multiplication, the 23rd, liquid crystal lens drive signal before the left eye, the 24th, liquid crystal lens drive signal before the right eye, these two signals alternately occur with the frequency of field frequency multiplication, the voltage that drives liquid crystal lens is that peak value is that positive and negative 12 volts, frequency of oscillation are the square wave about 1000HZ, and the drive signal mode of utilizing this liquid crystal lens is to help preventing the liquid crystal polarization.When 23 occurred, the eyeglass 25 before the liquid crystal glasses left eye was opened, and the liquid crystal lens 26 before the right eye is closed.And when 24 occurred, the liquid crystal lens 26 before the right eye was opened, and the liquid crystal lens 25 before the left eye is closed.Contrast the frequency multiplication picture signal among this figure, as can be seen when frequency multiplication odd field picture signal occurs, observer's left eye can be seen odd field frequency multiplication picture signal 5 just by 25, and when frequency multiplication even field picture signal occurred, observer's right eye can be seen even field frequency multiplication picture signal 7 just by 26.Therefore the observer can see the flicker free three-dimensional television image by synchronously driven liquid crystal glasses.This liquid crystal glasses can be wired driving, also can be by wireless driving.When by wired driving, 23 and 24 directly are added on the liquid crystal lens.When by wireless driving, 22 are used to the modulated red external transmitter, and this synchronizing signal is launched, and liquid crystal glasses receives this synchronizing signal, form 23 and 24 and then drive the liquid crystal lens of liquid crystal glasses again.
Fig. 4. be an embodiment.40 is basic principle block diagrams of a 100HZ color TV set.The 30th, the antenna of this television receiver, the 31st, rectifier, the 32nd, intermediate-frequency circuit, the 33rd, video circuit, the 34th, the image frequency multiplier circuit, comprising analog to digital conversion circuit, the field storage circuit, image processing circuit, the picture signal frequency multiplier circuit, D/A converting circuit, the 35th, video amplifier circuit, the 38th, picture tube, the 36th, sync separator circuit, comprising field frequency-doubled signal generation circuit, row frequency-doubled signal generation circuit, the field blanking signal generating circuit, horizontal blanking signal generation circuit, the 37th, scanning circuit, it generates a various row frequency multiplication scanning signal, be sent to deflecting coil, the 38th, the video image playback equipment, it directly sends into video signal the video inputs of television set.This 100HZ color television set can't be watched five flicker time-division three-dimensional television images, make it have the implementation method that shows the flashless time-sharing stereo TV image function to be: earlier the frequency multiplication parity field picture coding scheme in 34 is adjusted into frequency multiplication parity field time-division three-dimensional television image coded system as shown in Figure 1, in 33, take out full TV colour-video signal 60 then, send 60 into parity field synchronization signal extraction circuit 41,41 can be realized by 1881 integrated circuits, also can realize with other capable field sync signal split circuit.The 42nd, parity field synchronizing signal frequency multiplier circuit can be realized with 4046 phase locking units and 4040 counters, also can realize by other frequency multiplier circuit.The 43rd, phase lock circuitry, it is locked in the preceding edge of high level of the 42 frequency multiplication parity field synchronizing signals that produce on the preceding edge of high level of former parity field, and this circuit can be realized by 4013 double D triggers, also can be with other phase lock circuitry realization.The 45th, square-wave oscillator, it can be by 555 circuit, or 40106 circuit realize, also can realize by other square-wave oscillator circuit, square-wave signal about the 40KHZ that it produces is modulated by frequency multiplication parity field synchronizing signal, send into power amplifier 46 then, 46 can be realized by any high frequency power transistor, signal after 46 amplifications is admitted to infrared signal generator 47, it is to launch after the infrared signal 48 with electrical signal conversion, adopted the infrared signal emitter more than three or three among the figure, be installed in the diverse location of the inside of television set respectively, also can be installed in the outside of television set.Adjust the angle of radiation of infrared radiator, so that infrared signal can outwards be launched with bigger angle.The 53rd, infrared signal receiver, it is installed on the remote control liquid crystal glasses.53 are converted to the signal of telecommunication with infrared signal, and send into preamplifier 54, and it can be made of a triode, also can be made of an infrared receiver component that has amplifying head.The 55th, the filter that constitutes by 4098 monostable circuits, its square wave filtering about with the 40KHZ in the received signal, generate the parity field synchronizing signal of frequency multiplication, 52 is one can only produce the square-wave generator of 1000HZ left and right sides oscillator signal, and it can be formed by one 40106.56 are one, and it is according to the output of frequency multiplication parity field signal controlling 1000HZ square-wave signal by 4052 or 4066 video switchs of forming, and forms the liquid crystal lens control signal shown in Figure 23 and 24, and it is added on liquid crystal lens 57 and 61.50 is two joint 3V button cells, the 51st, and booster circuit, it is 12V with the boost in voltage of two joint 3V button cells.When picture tube 38 showed left-eye image, the liquid crystal lens 57 before the left eye was opened, and 61 close.And when picture tube 38 showed eye image, the liquid crystal lens 61 before the right eye was opened, and 57 close. Human eye 58 and 59 is alternately seen left eye and eye image, therefore synthetic stereo image in observer's brain.
Flicker free stereo TV technique involved in the present invention can be realized in China Konka, Haier, Skyworth, panda etc. have the color television set of 100HZ field frequency function, achieve the new function with flicker free spatical television set.For example the T2998 of Konka type, T3498 type and T3898 type 100HZ color TV set adopt technology involved in the present invention can realize flicker free stereoscopic TV function, utilize TV station or video playback apparatus to play the time-division three-dimensional television image, spectators promptly can enjoy the three-dimensional television image of flicker free time division type by the remote control liquid crystal glasses.Equally, panda C2926 type, C3426 type, C3826 type 100HZ color television set, the 2989XP of Toshiba type, 2999UXC type, 2999UC type, 29G6UXC type, 34G6UXC type 100HZ color television set, Skyworth's 2928 type 100HZ color television sets, happy magnificent RX29PN-100 type, RY29PN-100 type color television set also can be realized flicker free stereoscopic TV function by adopting technology of the present invention.All there is bigger space the inside of this television set, liquid crystal glasses drive circuit and infrared emission circuit can be installed, for the supporting annex of watching the flicker free three-dimensional television image of these 100HZ television sets, liquid crystal glasses drive circuit and infrared transmitter also can be installed in the outside of television set as a kind of.
Claims (9)
1. one kind is the method that realizes flicker free stereoscopic TV Presentation Function on the color television set of 100HZ at field frequency, it is that odd field in the frequency multiplication parity field signal of color television set of 100HZ enrolls former odd field image that described method comprises the following steps: field frequency, left-eye image with the reaction stereoscopic TV, and the even field signal in the frequency multiplication even field signal is enrolled former even field image, right eye image with the reaction stereoscopic TV, make the former parity field image that utilizes in frequency multiplication parity field picture signal, still keep every the time-division three-dimensional television image mode of field reaction left eye image and eye image, form frequency multiplication parity field time-division three-dimensional television image signal encoding mode, with field frequency is that parity field synchronizing signal in the colored full television video frequency signal in the 100HZ color television set extracts, and with its frequency multiplication, form frequency multiplication parity field synchronizing signal, this preceding edge of signal high level is phase-locked on the preceding edge of former odd field high level, sent liquid crystal glasses synchro switch control signal by phase-locked frequency multiplication parity field synchronizing signal control infrared transmitter, liquid crystal glasses receives the switch of this frequency multiplication parity field synchronous control signal control liquid crystal glasses eyeglass, make that the liquid crystal lens before the left eye is opened when showing the left eye image on the video screen, liquid crystal lens before the right eye is closed, and when video screen shows the right eye image, liquid crystal lens before the right eye is opened, liquid crystal lens before the left eye is closed, thereby makes that spectators can be that the color television set of 100HZ is watched the time division type three-dimensional tv images by field frequency.
2. method according to claim 1, its essential characteristic realize flicker free stereoscopic TV appreciation function on the T2998 of Konka type, T3498 type and T3898 type 100HZ color television set.
3. method according to claim 1, its essential characteristic realize flicker free stereoscopic TV appreciation function on panda C2926 type, C3426 type and C3826 type 100HZ color television set.
4. method according to claim 1, its essential characteristic realize flicker free stereoscopic TV appreciation function on the 2989XP of Toshiba type, 2999UXC type, 29G6UXC type, 34G6UXC type, 38G6UXC type 100HZ color television set.
5. method according to claim 1, its essential characteristic realize flicker free stereoscopic TV appreciation function on Skyworth's 2928 type 100HZ color television sets.
6. method according to claim 1, its essential characteristic realize flicker free stereoscopic TV appreciation function on happy magnificent RX29PN-100 type, RY29PN-100 type 100HZ color television set.
7. method according to claim 1, its essential characteristic be, the extraction of this parity field synchronizing signal realizes by one 1881 integrated circuit, and frequency multiplier circuit is realized by 4046,4040 frequency multipliers of forming.
8. method according to claim 1, its essential characteristic be, this infrared transmitter is mounted in television set inside, and number at least should be more than three or three, and settle with different emission angles.
9. method according to claim 1, its essential characteristic be, this liquid crystal glasses is wireless driving, and battery is installed on the liquid crystal glasses, and liquid crystal glasses inside has with the circuit of button cell boost in voltage to the 12V, to guarantee the normal switch of liquid crystal lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98123342 CN1290344C (en) | 1998-12-14 | 1998-12-14 | Technology for making 100HZ field frequency color TV set have stereogram function |
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| CN 98123342 CN1290344C (en) | 1998-12-14 | 1998-12-14 | Technology for making 100HZ field frequency color TV set have stereogram function |
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| CN1235484A CN1235484A (en) | 1999-11-17 |
| CN1290344C true CN1290344C (en) | 2006-12-13 |
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| CN 98123342 Expired - Fee Related CN1290344C (en) | 1998-12-14 | 1998-12-14 | Technology for making 100HZ field frequency color TV set have stereogram function |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2472865C (en) * | 2004-06-29 | 2015-11-17 | Instrumar Limited | Fibre monitoring apparatus and method |
| CN101047872B (en) * | 2006-03-28 | 2011-07-13 | 深圳Tcl新技术有限公司 | Stereo audio vedio device for TV |
| CA2646439A1 (en) * | 2006-03-29 | 2007-11-08 | Nvidia Corporation | System, method, and computer program product for controlling stereo glasses shutters |
| US9179136B2 (en) | 2009-11-20 | 2015-11-03 | Broadcom Corporation | Method and system for synchronizing 3D shutter glasses to a television refresh rate |
| KR101623595B1 (en) * | 2009-12-17 | 2016-05-23 | 엘지디스플레이 주식회사 | 3d image display device |
| CN102196275B (en) * | 2010-03-05 | 2013-10-16 | 深圳Tcl新技术有限公司 | Stereoscopic display system and synchronous fault tolerance method thereof |
| CN102271261A (en) * | 2010-06-07 | 2011-12-07 | 天瀚科技股份有限公司 | Three-dimensional image acquiring and playing device |
| CN105721849B (en) * | 2016-01-26 | 2018-08-28 | 广东威创视讯科技股份有限公司 | Combination 3D signals synchronous display method and system |
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