CN102663983A - 3D (three-dimensional) overvoltage confirming method, LCD (Liquid Crystal Display) driving method, LCD system and television - Google Patents
3D (three-dimensional) overvoltage confirming method, LCD (Liquid Crystal Display) driving method, LCD system and television Download PDFInfo
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Abstract
The invention discloses 3D (three-dimensional) overvoltage confirming method, an LCD (Liquid Crystal Display) driving method, an LCD system and a television and mainly aims at providing a method for precisely confirming the overvoltage parameter under a 3D state. The 3D overvoltage confirming method comprises the following steps: 1.1 measuring the brightness of a plurality of different gray scales at 0 and 255 and at the range from 0 to 255 of an LCD as reference brightness; 1.2 presetting overvoltage needed by change between two different adjacent grey scale images; 1.3 driving the display by utilizing the preset overvoltage to test the brightness of the LCD after a set time for driving of the overvoltage correspondingly as test brightness; 1.4 comparing the reference brightness with the test brightness, if not, regulating the overvoltage according to the comparison result, and returning the step 1.3, and if yes, stopping. According to the invention, the accuracy of the overvoltage is further improved, and the brightness of the LCD is effectively promoted.
Description
Technical field
The present invention relates to a kind of 3D superpotential and confirm method, liquid crystal display driving method, system, televisor.
Background technology
Fast development and development of technology along with TV tech; The 3D TV is general day by day and ripe, and fast gate-type 3D TV wherein is when enjoying full HD 3D effect, and the relativity price ratio is high; Can realize The better resolution again, in existing 3D tv product, occupy the bigger market share gradually.The fast gate-type 3D televisor of 120hz utilizes the high picture refreshing rate of its 120hz; Staggered continuously demonstration of two group of pictures that one two field picture is divided into two and forms corresponding right and left eyes;, opens television content the right eyeglass of fast gate-type 3D glasses when showing the right eye picture; Close the left eyeglass of fast gate-type 3D glasses simultaneously, when television content shows the left eye picture, open the left eyeglass of fast gate-type 3D glasses, close the right eyeglass of fast gate-type 3D glasses simultaneously; Because the image that right and left eyes is seen is different, and reach the effect of the synthetic 3D image of final beholder.
Spectators more can pay close attention to the three-dimensional stereo effect of demonstration when watching the 3D TV, i.e. 3D rendering effect, and the main factor that influences the fast gate-type 3D effect of 120hz at present is crosstalk (Crosstalk) and brightness.Crosstalk and be meant that the beholder left eye seen the picture material of should right eye seeing; Or right eye seen the picture material that should see left eye, and the major influence factors that crosstalking appears in 3D rendering is corresponding synchronous bad the causing of lighting sequential and liquid crystal display response time of liquid crystal module group backlight scanning.And the low major influence factors of 3D rendering brightness is the time of an opening length backlight under the 3D rendering.How to make that under 3D rendering liquid crystal molecule reaches steady state (SS) faster; For the time is opened in the increase of liquid crystal module group backlight scanning; The increase time of opening promptly can reduce crosstalking of 3D rendering; Also can increase the brightness of 3D rendering, and then guarantee that each frame picture can both correctly get in beholder's the corresponding right and left eyes, generally addresses this problem through increasing superpotential method in advance; The superpotential question blank is all arranged in each LCD, and the precision of superpotential parameter directly affects the speed and the accuracy of the liquid crystal deflecting element of LCD.Now also do not have a kind of strick precaution that can effectively drive the 3D LCD effectively to confirm the method for the overvoltage value of 3D LCD TV, the accuracy of overvoltage value has directly determined LCD look display effect.
Summary of the invention
To the problems referred to above, the driving method of definite method that the present invention provides a kind of overvoltage value of 3D comparatively accurately and the LCD that comprises the 3D overvoltage value that obtains through this method and liquid crystal display systems, televisor.
For achieving the above object, the superpotential definite method of 3D of the present invention comprises the steps:
1.1 the brightness that measures a plurality of different GTGs between liquid crystal display displays 0,255 and the 0-255 is as Benchmark brightness;
1.2 change required superpotential between the different gray scale images of preset adjacent two frames;
1.3 utilize preset superpotential driving display, the brightness that testing liquid crystal display reaches after corresponding superpotential drives the time of setting is as test brightness;
1.4 contrast Benchmark brightness and test brightness do not meet according to comparing result adjustment superpotential, return step 1.3; Meet termination.
Further, the concrete method of testing step of the test brightness of said step 1.3 is:
2.1 import a frame left-eye image and a frame eye image of different GTGs to LCDs, carry out Alternation Display;
2.2 the duration of a frame left-eye image or eye image, utilize respective image GTG corresponding preset superpotential driving liquid crystal device, until receiving next frame left eye or eye image;
2.3 measure the liquid crystal display displays device through the brightness value of driven one two field picture after the time, this brightness value is test brightness.
Further, the adjustment method of said step 1.4 is,
When if test brightness is higher than normal brightness, reduce the preset superpotential value in the step 1.2;
If test brightness improves preset superpotential value when being lower than Benchmark brightness;
Wherein, when adjacent two two field pictures are by high gray during to low gray scale variation, superpotential value should be not more than the corresponding driving voltage value of low GTG;
When adjacent two two field pictures be by low GTG when high gray changes, the value of overdrive voltage value should be not less than the corresponding driving voltage value of high gray.
Particularly, said test brightness, when on LCD, alternately showing the image of the different GTGs of two frames, timed delivery connects nitometer through the probe of the brightness on it and records for the right and left eyes eyeglass of opening fast gate-type glasses.
For achieving the above object, the driving method of LCD of the present invention is characterized in that: comprise the steps:
5.1 storage superpotential question blank;
5.2 receive the image transformation signal;
5.3 confirm the adjacent current frame image and the gray scale variation value of target frame image;
5.4, calculate said gray scale variation and be worth the required superpotential of pairing image gray-scale level variation through inquiry superpotential question blank;
5.5 utilize said superpotential driving liquid crystal device, receive the next frame picture signal until LCD, the variation of a two field picture takes place.
Especially, comprise also before the said step 4.1 and confirm superpotential step in the said superpotential question blank that said superpotential is confirmed through the superpotential definite method of the arbitrary described 3D of claim 1 to 3.
Further, also should comprise step before the said step 5.3: whether more adjacent two two field pictures the step of gray scale variation takes place,
If taking place, gray scale variation carry out step 5.4, and the time through said superpotential driving liquid crystal device one two field picture; Return step 5.2;
If gray scale variation does not take place, utilize the corresponding driven LCD of present frame GTG, receive the picture signal of the different GTGs of a frame until said LCD.
Especially, said Backlight For Liquid Crystal Display Panels is accomplished at LCD and is opened synchronously after superpotential drives.
For achieving the above object, liquid crystal display systems of the present invention comprises LCD, image control unit, GTG acquiring unit, the acquiring unit of overdriving, Voltag driving circuit, backlight and backlight source driving circuit, wherein,
Said LCD is used to show adjacent left-eye image and eye image;
Said image control unit is used for the output image figure signal and controls the synchronizing signal that fast gate-type glasses right and left eyes eyeglass is opened;
Said GTG acquiring unit; Be used to obtain the GTG value of two adjacent two field pictures; And judge whether two adjacent two field pictures gray scale variation takes place, and exports comparative result to said voltage acquiring unit, if the adjacent image generation gray scale variation of two frames; Confirm the changing value of adjacent two two field picture GTG values, and this value is outputed to the voltage acquiring unit;
Said voltage acquiring unit if gray scale variation takes place, is used to inquire about the superpotential question blank of storage, obtains being used for the overvoltage value of image transitions through driven algorithm, and this result is outputed to Voltag driving circuit, and control Driver Circuit is exported corresponding superpotential; If gray scale variation does not take place, this result is outputed to Voltag driving circuit, control Driver Circuit is exported two consecutive frame image correspondent voltage; Wherein, the overvoltage value in the said superpotential question blank obtains through the superpotential definite method of the arbitrary described 3D of claim 1-5.
Said Voltag driving circuit is used for driving said LCD through the voltage control signal output correspondent voltage that receives said voltage acquiring unit output;
Said fast gate-type glasses comprise a left eyeglass lens and a right eye eyeglass, are used to receive the synchronizing signal of said image control unit output, cooperate liquid crystal display displays left-eye image and eye image alternately to open the right and left eyes eyeglass.
Said backlight is adjacent to said LCD, is used to said LCD required brightness is provided;
Said backlight control circuit is used to control said backlight and opens synchronously after LCD is accomplished the superpotential driving at LCD
For achieving the above object, televisor of the present invention comprises liquid crystal display systems, the liquid crystal display systems that said liquid crystal display systems is above-mentioned.
The present invention is applied to fast gate-type 3D LCD TV; Through to being located at the optimization of the overvoltage value in the 3D superpotential question blank in the LCD TV; Improve superpotential degree of accuracy; In LCD required overvoltage value in procedure for displaying, through using the said question blank of overdriving of inquiry, and utilize obtaining of mean difference algorithm.Because having arrived of overvoltage value as the superpotential parameter optimized with accurate; So calculate in the driving process of LCD actual required superpotential also obtained optimizing with accurately; Shortened the deflection period of liquid crystal molecule; What make liquid crystal molecule on the liquid crystal panel can reach steady state (SS) faster, has increased backlight opening the time, the brightness when having increased liquid crystal display displays 3D picture; Effectively reduce the crosstalking of right and left eyes image of fast gate-type 3D LCD TV, improved the image quality of fast gate-type LCD TV.
Description of drawings
Fig. 1 is at the driving voltage curve and the liquid crystal deflecting element curve that do not increase under the over-voltage condition;
Fig. 2 is at the driving voltage curve and the liquid crystal deflecting element curve that increase under the over-voltage condition;
Fig. 3 is the process flow diagram of the superpotential definite method of the present invention;
Fig. 4 is the structural representation that the superpotential of LCD of the present invention is confirmed device;
Fig. 5 is the structural representation of the drive system of LCD of the present invention.
Embodiment
Below in conjunction with Figure of description the present invention is done further description.
Liquid crystal is a kind of intermediate material between crystal state and liquid state.It has some characteristic of liquid and crystal concurrently, shows some unique character.Most of liquid crystal all belong to organic double compound, are made up of long bar-shaped molecule.Under state of nature, the major axis almost parallel of these rodlike molecules.Pour liquid crystal into a fluting plane through superior processing, liquid crystal molecule can be arranged along groove, so if those grooves are very parallel, then each molecule also is completely parallel.Itself has electric charge liquid crystal molecule, and liquid crystal itself can row row be stood or reversed and is irregular during no power, thereby intercepts or light beam is passed through smoothly.Conducting when energising is arranged and is become orderly, and light is passed through easily; Fall into disarray during no power stops light to pass through.
The liquid crystal molecule of LCD is lined by line scan; And remain to next this row image after every line scanning is accomplished sends over just and can change always; In one sweep time, the liquid crystal molecule of bottom at first reaches steady state (SS) and shows this image.In next moment, middle liquid crystal molecule also reaches steady state (SS), and at this moment, the liquid crystal molecule of bottom still remains on this steady state (SS).After one sweep time, and the bottom is when receiving a new field signal again, and the liquid crystal molecule at top reaches steady state (SS), and at this moment, the liquid crystal molecule of bottom has received the signal of next and reached steady state (SS).So-called adjusting 3D display effect; It is at all promptly according to the scanning of liquid crystal molecule; Get certain some time point, open or close backlight, and then cooperate the switch of 3D eyeglass to make the beholder see separated respective left eye image; And the scanning of the liquid crystal molecule here refers to liquid crystal deflecting element to steady state (SS), shows correct image.During the debugging 3D effect, its corresponding time point of opening backlight also will be after liquid crystal molecule be accomplished deflection, if liquid crystal molecule can reach steady state (SS) faster; Then the controlled time of liquid crystal module group backlight will be longer; Crosstalking also can diminish, and the time of opening backlight also can extend, and brightness increases.
Each steady state (SS) of liquid crystal molecule all corresponding certain voltage, when on the electrode during making alive, liquid crystal molecule is not to turn to dbjective state immediately, but after certain response time, just can reach this state, voltage is high more, the speed of molecule rotation is fast more.Because the corresponding voltage of different GTGs is different, the angle that molecule need turn over is also different, and this varied with regard to the response time of having caused different GTG conversions.In order to make liquid crystal molecule can reach steady state (SS) faster; And the response time equalization that different GTGs are switched; It is a little higher than or be lower than the corresponding voltage of dbjective state in initial to use driving voltage that overdrive technique promptly applies; The speed that makes liquid crystal molecule rotate is faster, when arriving dbjective state, voltage in the corresponding voltage of getting back to dbjective state with hold mode.
As shown in Figure 1, the liquid crystal molecule response curve, middle curve a is a voltage curve; Curve b is under the normal condition; Liquid crystal molecule on the liquid crystal panel of LCD is under the effect of electric current, and its liquid crystal molecule carries out deflection slowly until reaching steady state (SS), and the time that reaches steady state (SS) is long; As shown in Figure 2, curve a representes voltage curve, increases after the overdrive voltage, and its liquid crystal molecule response time is fast, and liquid crystal molecule change curve b can be very fast reaches steady state (SS).After use was overdrived, its controlled time backlight can obviously strengthen.Overdrive technique is applied to can better take into account in the 3D display technique liquid crystal molecule in backlighted zone; To guarantee that liquid crystal all is in steady state (SS); Promptly reduced crosstalking under the 3D, can increase simultaneously the time of opening backlight to make that brightness increases under the 3D, and then optimize 3D effect.The optimization of the 3D effect superpotential accuracy in the table that is decided by to overdrive does not also have overdrive the comparatively accurately method of table of a kind of effective foundation at present.The overdrive method for building up of table of 3D of the present invention utilizes the brightness of energising deflection characteristic printing opacity of testing liquid crystal display within the regular hour of liquid crystal molecule to verify the correctness of over-drive value as master gauge.
As shown in Figure 3, definite method of 3D voltage of the present invention comprises the steps:
1.1 measure a plurality of different GTGs between liquid crystal display displays 0,255 and the 0-255, brightness as Benchmark brightness;
1.2 change required superpotential between the different gray scale images of preset adjacent two frames;
1.3 utilize preset superpotential driving display, the brightness that testing liquid crystal display reaches after corresponding superpotential drives the time of setting is as test brightness;
1.4 contrast Benchmark brightness and test brightness do not meet according to comparing result adjustment superpotential, return step 3.3; Meet termination.
Further, the concrete method of testing step of the test brightness of said step 1.3 is:
2.1 import a frame left-eye image and a frame eye image of different GTGs to LCDs, carry out Alternation Display;
2.2 the duration of a frame left-eye image or eye image, utilize respective image GTG corresponding preset superpotential driving liquid crystal device, until receiving next frame left eye or eye image;
2.3 measure the liquid crystal display displays device through the brightness value of driven one two field picture after the time, this brightness value is test brightness.
Further, the adjustment method of said step 1.4 is when test brightness is higher than normal brightness, to reduce the preset superpotential value in the step 1.2; , test brightness improves preset superpotential value when being lower than Benchmark brightness; Wherein when adjacent two frame figures by high gray during to low gray scale variation, superpotential value should be not more than the corresponding driving voltage value of low GTG, when by low GTG when high gray changes, the overdrive voltage value should be not less than the driving voltage value of high gray correspondence.
Further, the adjustment method of said step 1.4 is,
When if test brightness is higher than normal brightness, reduce the preset superpotential value in the step 1.2;
If test brightness improves preset superpotential value when being lower than Benchmark brightness;
Wherein, when adjacent two two field pictures are by high gray during to low gray scale variation, superpotential value should be not more than the corresponding driving voltage value of low GTG;
When adjacent two two field pictures be by low GTG when high gray changes, the value of overdrive voltage value should be not less than the corresponding driving voltage value of high gray.
Particularly, said test brightness, when on LCD, alternately showing the image of the different GTGs of two frames, timed delivery connects nitometer through the probe of the brightness on it and records for the right and left eyes eyeglass of opening fast gate-type glasses.
Definite method of above-mentioned 3D overdrive voltage is to be mainly used in superpotential in the superpotential question blank of storing in the fast gate-type 3D LCD to confirm that its method is carried out final completion through the 3D liquid crystal display system.
As shown in Figure 4, described liquid crystal display systems comprises LCD 1, image control unit 2, GTG acquiring unit 3, the acquiring unit 4 of overdriving, Voltag driving circuit 5, fast gate-type glasses 6, backlight 7 and backlight source driving circuit 8, wherein,
Said LCD 1 is used for Alternation Display and shows adjacent left-eye image and eye image;
Said image control unit 2 is used for the output image figure signal and controls the synchronizing signal that fast gate-type glasses right and left eyes eyeglass is opened;
Said GTG acquiring unit 3; Be used to obtain the GTG value of two adjacent two field pictures; And judge whether two adjacent two field pictures gray scale variation takes place, and exports comparative result to said voltage acquiring unit, if the adjacent image generation gray scale variation of two frames; Confirm the changing value of adjacent two two field picture GTG values; And this value outputed to the voltage acquiring unit, the input of the superpotential method deterministic process of 3D be exactly the image of the different GTGs of frame, the image change of imitation LCD in actual driving process:
Said voltage acquiring unit 4 if gray scale variation takes place, is used to inquire about the superpotential question blank of storage, and this result is outputed to Voltag driving circuit, and control Driver Circuit is exported corresponding superpotential;
Said Voltag driving circuit 5 is used for exporting corresponding superpotential through the voltage control signal that receives said voltage acquiring unit output and drives said LCD;
Said fast gate-type glasses 6; Connect nitometer 9; Comprise a left eyeglass lens and a right eye eyeglass, be used to receive the synchronizing signal of said image control unit output, cooperate liquid crystal display displays left-eye image and eye image alternately to open the right and left eyes eyeglass; Through the brightness of nitometer demonstration left-eye image and eye image, preset superpotential is verified.
Said backlight 7 is adjacent to said LCD, is used to said LCD required brightness is provided;
Said backlight control circuit 8 is used to control said backlight and opens synchronously after LCD is accomplished the superpotential driving at LCD
The driving method of LCD of the present invention is characterized in that: comprise the steps:
5.1 storage superpotential question blank;
5.2 receive the image transformation signal;
5.3 confirm the adjacent current frame image and the gray scale variation value of target frame image;
5.4, calculate said gray scale variation and be worth the required superpotential of pairing image gray-scale level variation through inquiry superpotential question blank;
5.5 utilize said superpotential driving liquid crystal device, receive the next frame picture signal until LCD, the variation of a two field picture takes place.
Especially, also comprise superpotential step in definite said superpotential question blank before the said step 4.1, said superpotential is to confirm through the superpotential definite method of above-mentioned 3D.
Further, also should comprise step before the said step 5.3: whether more adjacent two two field pictures the step of gray scale variation takes place,
If taking place, gray scale variation carry out step 5.4, and the time through said superpotential driving liquid crystal device one two field picture; Return step 5.2;
If gray scale variation does not take place, utilize the corresponding driven LCD of present frame GTG, receive the picture signal of the different GTGs of a frame until said LCD.
Especially, said Backlight For Liquid Crystal Display Panels is accomplished at LCD and is opened synchronously after superpotential drives.
Correspondingly; As shown in Figure 5, liquid crystal display systems of the present invention comprises LCD 1, image control unit 2, GTG acquiring unit 3, the acquiring unit 4 of overdriving, Voltag driving circuit 5, fast gate-type glasses 6, backlight 7 and backlight source driving circuit 8; Wherein
Said LCD 1 is used to show adjacent left-eye image and eye image;
Said image control unit 2 is used for the output image figure signal and controls the synchronizing signal that fast gate-type glasses right and left eyes eyeglass is opened;
Said GTG acquiring unit 3; Be used to obtain the GTG value of two adjacent two field pictures; And judge whether two adjacent two field pictures gray scale variation takes place, and exports comparative result to said voltage acquiring unit, if the adjacent image generation gray scale variation of two frames; Confirm the changing value of adjacent two two field picture GTG values, and this value is outputed to the voltage acquiring unit;
Said voltage acquiring unit 4 if gray scale variation takes place, is used to inquire about the superpotential question blank of storage, obtains being used for the overvoltage value of image transitions through driven algorithm, and this result is outputed to Voltag driving circuit, and control Driver Circuit is exported corresponding superpotential; If gray scale variation does not take place, this result is outputed to Voltag driving circuit, control Driver Circuit is exported two consecutive frame image correspondent voltage; Wherein, the overvoltage value in the said superpotential question blank is to obtain through superpotential definite method of above-mentioned 3D and device.
Said Voltag driving circuit 5 is used for driving said LCD through the voltage control signal output correspondent voltage that receives said voltage acquiring unit output;
Said fast gate-type glasses 6 comprise a left eyeglass lens and a right eye eyeglass, are used to receive the synchronizing signal of said image control unit output, cooperate liquid crystal display displays left-eye image and eye image alternately to open the right and left eyes eyeglass.
Said backlight 7 is adjacent to said LCD, is used to said LCD required brightness is provided;
Said backlight control circuit 8 is used to control said backlight and opens synchronously after LCD is accomplished the superpotential driving at LCD
A kind of televisor comprises liquid crystal display systems, the liquid crystal display systems that said liquid crystal display systems is above-mentioned.
In specific embodiment, specify superpotential definite method below:
First embodiment:
As shown in table 1, be a preset superpotential question blank, be the matrix of a 6*6; The value that wherein is distributed on the principal diagonal is under the 3D state; The brightness value of image when 0,64,128,192,224,255,6 different GTG value, this value measures through nitometer; As normal brightness, other values are that the present frame gray scale variation is to the required overdrive voltage of next frame GTG.Since each stable status of liquid crystal molecule all corresponding certain voltage, the driving voltage that different GTGs are corresponding different, the overdrive voltage value in the said superpotential question blank is represented through the corresponding GTG of said overdrive voltage.Six letters that the corresponding delegation of the existing row with 6 rank matrixes of explanation for ease arranges are A, B, C, D, E, F; Be called corresponding row; Six numerals that the corresponding delegation of 6 rank matrix columns arranges are 1,2,3,4,5,6, are called respective column, and what distribute successively on corresponding row and the respective column is 0,64,128,192,224,255; 6 different GTG values, wherein corresponding row representes that the GTG respective column of present frame representes the next frame GTG.
For example, be the pairing driving voltage value of 71 GTGs in the B1 lattice in the superpotential question blank by 0 gray scale variation to the required overdrive voltage value of 64 GTGs, promptly at the row at 0 GTG place and in the value of the row at 64 GTGs place.
Is the pairing driving voltage value of 0 GTG in the A2 lattice in the superpotential question blank by 64 gray scale variation to the required overdrive voltage value of 0 GTG, promptly at the row at 64 GTGs places and in the value of the row at 0 GTG place.
Is the pairing driving voltage value of 134 GTGs in the E4 lattice in the superpotential question blank by 192 gray scale variation to the required overdrive voltage value of 254 GTGs, promptly at the row at 192 GTGs places and in the value of the row at 254 GTGs place.
Table 1
Under the 3D state, image is divided into two carries out full screen display respectively, preset table-drive verifies that wherein the method for the correctness of over-drive value specifies as follows after setting up:
Through two pixel regions about picture is divided into; Also can be two zones up and down; Or all can in two zones of row at interval; Each pixel region shows respectively, and the left and right sides eyeglass of the corresponding 3D glasses of each pixel region difference, and two pixel regions are that example describes about picture being divided at present: the left eyeglass of the corresponding 3D glasses of the pixel region on the left side; The right eyeglass of the corresponding 3D glasses of the pixel region on the right, after overdriving through increase the gray scale variation of image to the time of steady state (SS) be the time of a two field picture.The time redirect that left and right sides glasses are opened should be image and reaches stable redirect at once; Because under the situation that does not increase overdrive voltage; Or the overdrive voltage that increases is when not enough, and image will reach 64 GTGs should increase the voltage 64 GTGs under, is that speed is slow; If it is long that the little situation of overdrive voltage that increases so is issued to the time that long lens of the time of 64 GTGs opens, still can reach 64 GTGs.Checking be mainly add over-drive value and can in the time of appointment, make it reach target gray scale.
Verify whether 0 GTG and the pairing magnitude of voltage of 64 GTGs be correct;
First frame, the overvoltage value of corresponding 0 GTG drives the leftmost pixel zone to make it reach target gray scale is 0 GTG in the use table 1, and opens the left eyeglass of lens; Make the brightness of its induction picture this moment; On nitometer, show, and with table 1 in measure the 0 GTG normal brightness down obtain and contrast, if the brightness value of demonstration equates with the normal brightness value that in step 1.1, measures; Then this preset overdrive voltage value is constant; If the brightness of brightness overgauge then need reduce predeterminated voltage, if less than normal brightness then increase predeterminated voltage; Brightness under resulting 0 GTG is identical with the brightness value in the step 1.1, and then the overdrive voltage value is the overdrive voltage value under 0 GTG.
Second frame, whether the checking next frame reaches the overdrive voltage value of 64 GTGs correct, reaches the required overdrive voltage value of 64 GTGs by 0 GTG in the use table 1 and drive the right pixels zone to make it reach target gray scale be 64 GTGs; And open the right eyeglass of lens, and make the brightness of its induction picture this moment, on nitometer, show; And with table 1 in the normal brightness that measures under 64 GTGs obtain contrast; If the brightness value that shows equates that with the normal brightness value that in step 1.1, measures then this preset overdrive voltage value is constant, if the brightness of brightness overgauge; Then need reduce predeterminated voltage; If less than normal brightness then increase predeterminated voltage, the brightness under resulting 64 GTGs is identical with the brightness value in the step 1.1, and then the overdrive voltage value is the overdrive voltage value under 64 GTGs.
Through above-mentioned left and right sides pixel region Alternation Display, the mode alternately opened of the left and right sides glasses of 3D glasses simultaneously, checking does not verify that next frame is 128,192,224,255, overdrive voltage whether correct.
Second embodiment:
As shown in table 2, be a preset superpotential question blank, be the matrix on 9*9 rank; The value that wherein is distributed on the principal diagonal is under the 3D state; The brightness value of image when 0,32,64,96,128,160,192,224,255,9 different GTG value, this value measures through nitometer; As normal brightness, other values are that the present frame gray scale variation is to the required overdrive voltage of next frame GTG.Since each stable status of liquid crystal molecule all corresponding certain voltage, the driving voltage that different GTGs are corresponding different, the overdrive voltage value in the said superpotential question blank is represented through the corresponding GTG of said overdrive voltage.Six letters that the corresponding delegation of the existing row with 6 rank matrixes of explanation for ease arranges are A, B, C, D, E, F; Be called corresponding row; Six numerals that the corresponding delegation of 6 rank matrix columns arrange are 1,2,3,4,5,6,7,8,9 to be called respective column; What distribute successively on corresponding row and the respective column is 0,32,64,96,128,160,192,224,255,9 different GTG value, and wherein corresponding row representes that the GTG respective column of present frame representes the next frame GTG.
For example, be the pairing driving voltage value of 71 GTGs in the B1 lattice in the superpotential question blank by 0 gray scale variation to the required overdrive voltage value of 64 GTGs, promptly at the row at 0 GTG place and in the value of the row at 64 GTGs place.
Table 2
Under the 3D state, image is divided into two carries out full screen display respectively, preset table-drive verifies that wherein the method for the correctness of over-drive value specifies as follows after setting up:
Through two pixel regions about picture is divided into; The left eyeglass of the corresponding 3D glasses of the pixel region on the left side; The right eyeglass of the corresponding 3D glasses of the pixel region on the right, after overdriving through increase the gray scale variation of image to the time of steady state (SS) be the time of a two field picture.The time redirect that left and right sides glasses are opened should be image and reaches stable redirect at once; Because under the situation that does not increase overdrive voltage; Or the overdrive voltage that increases is when not enough, and image will reach 64 GTGs should increase the voltage 64 GTGs under, is that speed is slow; If it is long that the little situation of overdrive voltage that increases so is issued to the time that long lens of the time of 64 GTGs opens, still can reach 64 GTGs.Checking be mainly add over-drive value and can in the time of appointment, make it reach target gray scale.
Verify whether 0 GTG and the pairing magnitude of voltage of 64 GTGs be correct;
First frame, the overvoltage value of corresponding 0 GTG drives the leftmost pixel zone to make it reach target gray scale is 0 GTG in the use table 2, and opens the left eyeglass of lens; Make the brightness of its induction picture this moment; On nitometer, show, and with table 2 in measure the 0 GTG normal brightness down obtain and contrast, if the brightness value of demonstration equates with the normal brightness value that in step 1.1, measures; Then this preset overdrive voltage value is constant; If the brightness of brightness overgauge then need reduce predeterminated voltage, if less than normal brightness then increase predeterminated voltage; Brightness under resulting 0 GTG is identical with the brightness value in the step 1.1, and then the overdrive voltage value is the overdrive voltage value under 0 GTG.
Second frame, whether the checking next frame reaches the overdrive voltage value of 64 GTGs correct, reaches the required overdrive voltage value of 64 GTGs by 0 GTG in the use table 2 and drive the right pixels zone to make it reach target gray scale be 64 GTGs; And open the right eyeglass of lens, and make the brightness of its induction picture this moment, on nitometer, show; And with table 2 in the normal brightness that measures under 64 GTGs obtain contrast; If the brightness value that shows equates that with the normal brightness value that in step 1.1, measures then this preset overdrive voltage value is constant, if the brightness of brightness overgauge; Then need reduce predeterminated voltage; If less than normal brightness then increase predeterminated voltage, the brightness under resulting 64 GTGs is identical with the brightness value in the step 1.1, and then the overdrive voltage value is the overdrive voltage value under 64 GTGs.
Through above-mentioned left and right sides pixel region Alternation Display, the mode alternately opened of the left and right sides glasses of 3D glasses simultaneously, checking does not verify that next frame is 128,192,224,255, overdrive voltage whether correct.
The 3rd embodiment:
On the basis of the method that above-mentioned two superpotential question blanks are set up, further expand for the normal brightness that increases the GTG in the table-drive and verify; Improve the superpotential question blank levels of precision, as shown in table 3, be a preset superpotential question blank; It is the matrix on 17*17 rank; The value that wherein is distributed on the principal diagonal is under the 3D state, the brightness value of image when 0,32,64,96,128,160,192,224,255,17 different GTG value; This value measures through nitometer, as normal brightness.
Table 3
Equally through two pixel regions about picture is divided into; Also can be two zones up and down; Or all can in two zones of row at interval; Each pixel region shows respectively, and the left and right sides eyeglass of the corresponding 3D glasses of each pixel region difference, and two pixel regions are that example describes about picture being divided at present: the left eyeglass of the corresponding 3D glasses of the pixel region on the left side; The right eyeglass of the corresponding 3D glasses of the pixel region on the right, after overdriving through increase the gray scale variation of image to the time of steady state (SS) be the time of a two field picture.The time redirect that left and right sides glasses are opened should be image and reaches stable redirect at once; Because under the situation that does not increase overdrive voltage; Or the overdrive voltage that increases is when not enough, and image will reach 64 GTGs should increase the voltage 64 GTGs under, is that speed is slow; If it is long that the little situation of overdrive voltage that increases so is issued to the time that long lens of the time of 64 GTGs opens, still can reach 64 GTGs.Checking be mainly add over-drive value and can in the time of appointment, make it reach target gray scale.
Verify whether 0 GTG and the pairing magnitude of voltage of 64 GTGs be correct;
First frame, the overvoltage value of corresponding 0 GTG drives the leftmost pixel zone to make it reach target gray scale is 0 GTG in the use table 3, and opens the left eyeglass of lens; Make the brightness of its induction picture this moment; On nitometer, show, and with table 3 in measure the 0 GTG normal brightness down obtain and contrast, if the brightness value of demonstration equates with the normal brightness value that in step 1.1, measures; Then this preset overdrive voltage value is constant; If the brightness of brightness overgauge then need reduce predeterminated voltage, if less than normal brightness then increase predeterminated voltage; Brightness under resulting 0 GTG is identical with the brightness value in the step 1.1, and then the overdrive voltage value is the overdrive voltage value under 0 GTG.
Second frame, whether the checking next frame reaches the overdrive voltage value of 64 GTGs correct, uses in 3 to reach the required overdrive voltage value of 64 GTGs by 0 GTG and drive the right pixels zone to make it reach target gray scale be 64 GTGs; And open the right eyeglass of lens, and make the brightness of its induction picture this moment, on nitometer, show; And with table 3 in the normal brightness that measures under 64 GTGs obtain contrast; If the brightness value that shows equates that with the normal brightness value that in step 1.1, measures then this preset overdrive voltage value is constant, if the brightness of brightness overgauge; Then need reduce predeterminated voltage; If less than normal brightness then increase predeterminated voltage, the brightness under resulting 64 GTGs is identical with the brightness value in the step 1.1, and then the overdrive voltage value is the overdrive voltage value under 64 GTGs.
Through above-mentioned left and right sides pixel region Alternation Display, the mode alternately opened of the left and right sides glasses of 3D glasses simultaneously, checking do not verify next frame be in other the table GTG value overdrive voltage whether correct.
More than; Be merely preferred embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.
Claims (10)
1. the superpotential definite method of 3D is characterized in that: comprise the steps:
1.1 the brightness that measures a plurality of different GTGs between liquid crystal display displays 0,255 and the 0-255 is as Benchmark brightness;
1.2 change required superpotential between the different gray scale images of preset adjacent two frames;
1.3 utilize preset superpotential driving display, the brightness that testing liquid crystal display reaches after corresponding superpotential drives the time of setting is as test brightness;
1.4 contrast Benchmark brightness and test brightness do not meet according to comparing result adjustment superpotential, return step 1.3; Meet termination.
2. the superpotential definite method of 3D according to claim 1 is characterized in that: the concrete method of testing step of the test brightness of said step 1.3 is:
2.1 import a frame left-eye image and a frame eye image of different GTGs to LCDs, carry out Alternation Display;
2.2 the duration of a frame left-eye image or eye image, utilize respective image GTG corresponding preset superpotential driving liquid crystal device, until receiving next frame left eye or eye image;
2.3 measure the liquid crystal display displays device through the brightness value of driven one two field picture after the time, this brightness value is test brightness.
3. the superpotential definite method of 3D according to claim 1 is characterized in that: the adjustment method of said step 1.4 is,
When if test brightness is higher than normal brightness, reduce the preset superpotential value in the step 1.2;
If test brightness improves preset superpotential value when being lower than Benchmark brightness;
Wherein, when adjacent two two field pictures are by high gray during to low gray scale variation, superpotential value should be not more than the corresponding driving voltage value of low GTG;
When adjacent two two field pictures be by low GTG when high gray changes, the value of overdrive voltage value should be not less than the corresponding driving voltage value of high gray.
4. the superpotential definite method of 3D according to claim 2; It is characterized in that: said test brightness; When on LCD, alternately showing the image of the different GTGs of two frames; Timed delivery connects nitometer through the probe of the brightness on it and records for the right and left eyes eyeglass of opening fast gate-type glasses.
5. the driving method of a LCD is characterized in that: comprise the steps:
5.1 storage superpotential question blank;
5.2 receive the image transformation signal;
5.3 confirm the adjacent current frame image and the gray scale variation value of target frame image;
5.4, calculate said gray scale variation and be worth the required superpotential of pairing image gray-scale level variation through inquiry superpotential question blank;
5.5 utilize said superpotential driving liquid crystal device, receive the next frame picture signal until LCD, the variation of a two field picture takes place.
6. the driving method of LCD according to claim 5; It is characterized in that: also comprise before the said step 4.1 and confirm superpotential step in the said superpotential question blank, said superpotential is confirmed through the superpotential definite method of the arbitrary described 3D of claim 1 to 3.
7. the driving method of LCD according to claim 5 is characterized in that: also should comprise step before the said step 5.3: whether more adjacent two two field pictures the step of gray scale variation takes place,
If taking place, gray scale variation carry out step 5.4, and the time through said superpotential driving liquid crystal device one two field picture; Return step 5.2;
If gray scale variation does not take place, utilize the corresponding driven LCD of present frame GTG, receive the picture signal of the different GTGs of a frame until said LCD.
8. the driving method of LCD according to claim 5 is characterized in that: said Backlight For Liquid Crystal Display Panels is accomplished at LCD and is opened synchronously after superpotential drives.
9. liquid crystal display systems is characterized in that: comprise LCD, image control unit, GTG acquiring unit, the acquiring unit of overdriving, Voltag driving circuit, backlight and backlight source driving circuit, wherein,
Said LCD is used to show adjacent left-eye image and eye image;
Said image control unit is used for the output image figure signal and controls the synchronizing signal that fast gate-type glasses right and left eyes eyeglass is opened;
Said GTG acquiring unit; Be used to obtain the GTG value of two adjacent two field pictures; And judge whether two adjacent two field pictures gray scale variation takes place, and exports comparative result to said voltage acquiring unit, if the adjacent image generation gray scale variation of two frames; Confirm the changing value of adjacent two two field picture GTG values, and this value is outputed to the voltage acquiring unit;
Said voltage acquiring unit if gray scale variation takes place, is used to inquire about the superpotential question blank of storage, obtains being used for the overvoltage value of image transitions through driven algorithm, and this result is outputed to Voltag driving circuit, and control Driver Circuit is exported corresponding superpotential; If gray scale variation does not take place, this result is outputed to Voltag driving circuit, control Driver Circuit is exported two consecutive frame image correspondent voltage; Wherein, the overvoltage value in the said superpotential question blank obtains through the superpotential definite method of the arbitrary described 3D of claim 1-5.
Said Voltag driving circuit is used for driving said LCD through the voltage control signal output correspondent voltage that receives said voltage acquiring unit output;
Said fast gate-type glasses comprise a left eyeglass lens and a right eye eyeglass, are used to receive the synchronizing signal of said image control unit output, cooperate liquid crystal display displays left-eye image and eye image alternately to open the right and left eyes eyeglass.
Said backlight is adjacent to said LCD, is used to said LCD required brightness is provided;
Said backlight control circuit is used to control said backlight and opens synchronously after LCD is accomplished the superpotential driving at LCD.
10. a televisor comprises liquid crystal display systems, it is characterized in that: said liquid crystal display systems is the described liquid crystal display systems of claim 9.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151015A (en) * | 2013-03-12 | 2013-06-12 | 京东方科技集团股份有限公司 | Overdrive method, circuit, display panel and display device |
| CN103813158A (en) * | 2014-02-19 | 2014-05-21 | 深圳市华星光电技术有限公司 | Overdrive value generation device and method |
| CN104280913A (en) * | 2014-10-13 | 2015-01-14 | 京东方科技集团股份有限公司 | Method and system for adjusting display effect of liquid crystal display panel and display device |
| CN105208365A (en) * | 2014-06-20 | 2015-12-30 | 青岛海信电器股份有限公司 | Display signal processing method, display signal processing device and display equipment |
| CN103685864B (en) * | 2013-12-17 | 2017-02-08 | 深圳市华星光电技术有限公司 | Image signal acquiring method and image signal acquiring device |
| CN107402465A (en) * | 2017-08-04 | 2017-11-28 | 中国科学院光电技术研究所 | Method for establishing overdrive lookup table |
| CN109448662A (en) * | 2019-01-11 | 2019-03-08 | 京东方科技集团股份有限公司 | Display control method and device |
| CN109509452A (en) * | 2018-12-21 | 2019-03-22 | 惠科股份有限公司 | Driving method, device, equipment, display and readable storage medium |
| CN109686329A (en) * | 2018-12-29 | 2019-04-26 | 成都中电熊猫显示科技有限公司 | It overdrives method, equipment and the storage medium of debugging |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050231492A1 (en) * | 2004-04-16 | 2005-10-20 | Vastview Technology Inc. | Method of signal processing |
| CN101764924A (en) * | 2008-12-23 | 2010-06-30 | 乐金显示有限公司 | Method and apparatus for processing video data of liquid crystal display device |
| CN101789223A (en) * | 2009-01-23 | 2010-07-28 | 晨星软件研发(深圳)有限公司 | Apparatus for generating over-drive values and method thereof |
-
2012
- 2012-05-14 CN CN201210148203.6A patent/CN102663983B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050231492A1 (en) * | 2004-04-16 | 2005-10-20 | Vastview Technology Inc. | Method of signal processing |
| CN101764924A (en) * | 2008-12-23 | 2010-06-30 | 乐金显示有限公司 | Method and apparatus for processing video data of liquid crystal display device |
| CN101789223A (en) * | 2009-01-23 | 2010-07-28 | 晨星软件研发(深圳)有限公司 | Apparatus for generating over-drive values and method thereof |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151015A (en) * | 2013-03-12 | 2013-06-12 | 京东方科技集团股份有限公司 | Overdrive method, circuit, display panel and display device |
| CN103685864B (en) * | 2013-12-17 | 2017-02-08 | 深圳市华星光电技术有限公司 | Image signal acquiring method and image signal acquiring device |
| CN103813158A (en) * | 2014-02-19 | 2014-05-21 | 深圳市华星光电技术有限公司 | Overdrive value generation device and method |
| CN103813158B (en) * | 2014-02-19 | 2015-12-02 | 深圳市华星光电技术有限公司 | Over-drive value generating apparatus and method |
| CN105208365B (en) * | 2014-06-20 | 2018-05-15 | 青岛海信电器股份有限公司 | One kind shows signal processing method, device and display device |
| CN105208365A (en) * | 2014-06-20 | 2015-12-30 | 青岛海信电器股份有限公司 | Display signal processing method, display signal processing device and display equipment |
| CN104280913B (en) * | 2014-10-13 | 2017-07-28 | 京东方科技集团股份有限公司 | The method and system and display device of the display effect of adjustable liquid crystal display display panel |
| CN104280913A (en) * | 2014-10-13 | 2015-01-14 | 京东方科技集团股份有限公司 | Method and system for adjusting display effect of liquid crystal display panel and display device |
| CN107402465A (en) * | 2017-08-04 | 2017-11-28 | 中国科学院光电技术研究所 | Method for establishing overdrive lookup table |
| CN107402465B (en) * | 2017-08-04 | 2020-04-10 | 中国科学院光电技术研究所 | Method for establishing overdrive lookup table |
| CN109509452A (en) * | 2018-12-21 | 2019-03-22 | 惠科股份有限公司 | Driving method, device, equipment, display and readable storage medium |
| CN109509452B (en) * | 2018-12-21 | 2021-07-06 | 惠科股份有限公司 | Driving method, device, equipment, display and readable storage medium |
| CN109686329A (en) * | 2018-12-29 | 2019-04-26 | 成都中电熊猫显示科技有限公司 | It overdrives method, equipment and the storage medium of debugging |
| CN109686329B (en) * | 2018-12-29 | 2020-12-08 | 成都中电熊猫显示科技有限公司 | Method, device and storage medium for over-drive debugging |
| CN109448662A (en) * | 2019-01-11 | 2019-03-08 | 京东方科技集团股份有限公司 | Display control method and device |
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