CN102646405A - Liquid crystal display refreshing method, liquid crystal display screen, display and television - Google Patents
Liquid crystal display refreshing method, liquid crystal display screen, display and television Download PDFInfo
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- CN102646405A CN102646405A CN2012101528951A CN201210152895A CN102646405A CN 102646405 A CN102646405 A CN 102646405A CN 2012101528951 A CN2012101528951 A CN 2012101528951A CN 201210152895 A CN201210152895 A CN 201210152895A CN 102646405 A CN102646405 A CN 102646405A
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Abstract
The invention discloses a liquid crystal display refreshing method which comprises the steps of connecting at least two lines of pixel modules in a liquid crystal display to the same scanning drive line, and providing a starting voltage for the at least two lines of pixel modules by the scanning drive line, wherein each pixel module comprises three liquid crystal units connected to different data drive lines. The invention discloses a liquid crystal display screen which is provided with a plurality of pixel modules, a scanning drive line and data drive lines, wherein the at least two lines of pixel modules are connected to the same scanning drive line. The invention discloses a liquid crystal display, which at least comprises a scanning drive unit and a data drive unit, and also comprises the liquid crystal display screen, wherein the scanning drive line is connected to the scanning drive unit, and the data drive line is connected to the data drive unit. The invention also discloses a liquid crystal television which at least comprises a time sequence control system, wherein the time sequence control system is connected to the liquid crystal display, and gray scale data are transmitted to the scanning drive unit in the liquid crystal display.
Description
Technical field
The present invention relates to a kind of LCD method for refreshing, LCDs, LCD and liquid crystal TV set.
Background technology
A mainstream technology during the 3D TV shows at present is fast gate-type (SG 3D).It realizes that principle is is that unit sequence shows left-eye image and eye image with the frame, controls right and left eyes in conjunction with the synchro switch of glasses and receives corresponding image respectively.This technological major defect is the cross-interference issue that has right and left eyes, can also see image residual of right eye when promptly the left eye mirror is opened, and can see image residual of left eye when the right eye mirror is opened.
For solving cross-interference issue; If the then common way of adapted 240Hz screen is a black plug; Promptly send the black picture of the frame of redispatching behind left eye (right eye) image; Left eye (right eye) can receive left eye (right eye) image and the black picture of part when glasses are opened like this, thereby avoids right eye (left eye) to see the residual of left eye (right eye) image when glasses are opened; If adapted 120Hz screen then need adopt in retention time (zone) of mode display image on liquid crystal display of scanning backlight and open the backlight of corresponding region, other parts are backlight not to work.
As shown in Figure 1, suppose that the N frame is a left-eye image.Longitudinal direction is the line number of LCD, and transverse direction is a time shaft.The TFT unfolding mode is for refresh to 1150 row from the 1st row line by line.With wherein 750 behaviors example, after I district represented that this row TFT opens and adds voltage, the liquid crystal molecule of this row began to rotate to angle on target; In the reaction time of II district expression liquid crystal molecule, III district expression liquid crystal molecule reaches stable state and keeps the regular hour.IV district expression N+1 frame adds the image voltage of right eye again, repeats just now reaction time and stable state time.
In realizing process of the present invention, the inventor finds the used black plug method of 240Hz screen because the refreshing frequency of 240Hz, causes shielding inadequate resource and cost is higher.
And shield in the scan control mode backlight at 120Hz, the T1 among Fig. 1, T2 and T3 are respectively three backlight control zones, in this zone, can see: the left eye signal of stable state, do not reach the left eye signal of stable state and do not reach the right eye signal of stable state.Proof from practice exists when having astable left eye signal in the backlight control zone and crosstalks.To crosstalk in order reducing, can only to increase backlight control district number, the zone of reducing by every backlight control.Can increase the complicacy of cost of products and driving like this.
Summary of the invention
In order to overcome above-mentioned defective, the LCD method for refreshing that the present invention provides a kind of minimizing to crosstalk.
For achieving the above object; On the one hand; The present invention provides a kind of LCD method for refreshing, and said method is that at least two row picture element modules are connected on the same turntable driving line in the LCD, for above-mentioned at least two row picture element modules cut-in voltage is provided simultaneously by said turntable driving line.
On the other hand, the present invention provides a kind of LCDs, and said display screen is provided with a plurality of picture element modules, turntable driving line and data-driven line, and at least two row picture element modules are connected on the same turntable driving line.
On the other hand, the present invention provides a kind of LCD, comprises scan drive cell and data-driven unit at least, also comprises above-mentioned LCDs, and the turntable driving line is connected to scan drive cell, and the data-driven line is connected to the data-driven unit.
On the other hand, the present invention provides a kind of liquid crystal TV set, comprises sequential control system at least, and said sequential control system is connected to above-mentioned LCD, and luma data is transferred to the scan drive cell in the said LCD.
LCD method for refreshing of the present invention is through being connected at least two row picture element modules on the same turntable driving line and providing cut-in voltage to realize the raising of refresh rate for above-mentioned picture element module simultaneously; Make stable state left eye (right eye) signal in backlight control zone more, reduce crosstalking of fast gate-type 3D LCD.
At least two row picture element modules of LCDs of the present invention are connected on the same turntable driving line; For picture element module cut-in voltage is provided simultaneously by this turntable driving line; Refresh when having realized at least two row picture element modules; Stable state left eye (right eye) signal in backlight control zone is more, has reduced and has crosstalked.
LCD of the present invention has used above-mentioned LCDs; Liquid crystal TV set of the present invention has used above-mentioned LCD to improve the refresh rate of display; Make stable state left eye (right eye) signal in the backlight control zone more, reduce crosstalking of fast gate-type 3D LCD.
Description of drawings
The scan control mode schematic diagram backlight that Fig. 1 is adopted for existing 120Hz screen.
Fig. 2 is a preferred embodiment of the present invention structural representation.
Fig. 3 is the output waveform of the scan drive cell of preferred embodiment shown in Figure 2.
Fig. 4 is a realization principle schematic of the present invention.
Embodiment
Below in conjunction with Figure of description and embodiment the present invention is done detailed description.
LCD method for refreshing of the present invention is that at least two row picture element modules are connected on the same turntable driving line in the LCD, for above-mentioned at least two row picture element modules cut-in voltage is provided simultaneously by the turntable driving line.
Open when can realize at least two row picture element modules, realized the raising of refresh rate, make stable state left eye (right eye) signal in backlight control zone more, reduce crosstalking of fast gate-type 3D LCD through this method.
All comprise three liquid crystal cells in each picture element module on being connected same turntable driving line, in order not reduce the resolution of display picture, each liquid crystal cells all is connected to different data-driven line.When the turntable driving line provides cut-in voltage, the liquid crystal cells conducting that is connected by the data-driven line traffic control.
In the time of only need improving refresh rate when the resolution of not considering display picture, can use identical data-driven line to control two row liquid crystal cells conductings simultaneously.
In LCD method for refreshing of the present invention, the concrete picture element module line number that connects is not limit on the same turntable driving line.In view of the load of practicality and data-driven unit, the present invention preferably is connected two row picture element modules on the same turntable driving line.
As shown in Figure 2, the capable picture element module of N and the capable picture element module of N+1 of LCD is connected on the same turntable driving line, be that capable picture element module of N and the capable picture element module of N+1 provide cut-in voltage simultaneously by this turntable driving line.
M picture element module in the capable picture element module of N comprises three liquid crystal cells, M1 liquid crystal cells, M2 liquid crystal cells and M3 liquid crystal cells.P picture element module in the capable picture element module of N+1 comprises three liquid crystal cells, P1 liquid crystal cells, P2 liquid crystal cells and P3 liquid crystal cells.
When the turntable driving line provided cut-in voltage, the M1 liquid crystal cells was by J column data drive wire control conducting, and the M2 liquid crystal cells is by J+2 column data drive wire control conducting, and the M3 liquid crystal cells is by J+4 column data drive wire control conducting; The P1 liquid crystal cells is by J+1 column data drive wire control conducting, and the P2 liquid crystal cells is by J+3 column data drive wire control conducting, and the P3 liquid crystal cells is by J+5 column data drive wire control conducting.
Like Fig. 3 and shown in Figure 4; Compared to prior art shown in Figure 1; The inventive method application results is to make first row of LCD and the mistiming that last column reaches stable state reduce half; Under the constant situation of backlight control, the steady-state signal that gets into the control zone increases, and crosstalks thereby reduced effectively.
In order to realize above-mentioned LCD method for refreshing, LCDs of the present invention is provided with a plurality of picture element modules, turntable driving line and data-driven line, and at least two row picture element modules are connected on the same turntable driving line.Stronger and reduce the load of data-driven unit for practicality, the present invention preferably is connected two row picture element modules on the same turntable driving line.
Each picture element module that is connected on the same turntable driving line all comprises three liquid crystal cells, and liquid crystal cells comprises liquid crystal that is connected and the electronic switch of controlling the liquid crystal upset.The control end of electronic switch is connected on the turntable driving line, and first controlled end of electronic switch connects liquid crystal, and second controlled end of electronic switch is connected on the data-driven line.
Through this connected mode, make the upset of liquid crystal be in slave mode.When scan drive cell pressurizeed to picture element module through the turntable driving line, the control end that is connected on the turntable driving line was opened electronic switch.When the data-driven line also pressurizes conducting, second controlled end that is connected this data-driven line will link to each other with first controlled end, and the liquid crystal on first controlled end is with luminous.
In order not influence the resolution of display picture, second controlled end that is connected same the liquid crystal cells on the turntable driving line is connected on the different data-driven line.Like this, the displaying contents of each liquid crystal cells all is the picture content corresponding, rather than is changed to the content of other liquid crystal cells on the same turntable driving line.
The concrete structure of electronic switch is not limit, and the function that can play controlled back opening and closing gets final product.Electronic switch is preferably three utmost points and closes or FET, and these two kinds of device products maturations are functional, cheap for manufacturing cost.Especially FET becomes the first-selected device of electronic switch because of its better performance.
The liquid crystal cells that comprises in the picture element module is the fundamental element that LCD picture shows.LCD normally is the basis with three primary colors, so comprise three liquid crystal cells in the picture element module, these three liquid crystal cells are respectively red liquid crystal unit, green liquid crystal unit and blue liquid crystal unit.But be not limited thereto, select other color, as long as can satisfy the requirement of display picture color as primary colors.
LCD of the present invention comprises scan drive cell, data-driven unit and above-mentioned LCDs at least, and the turntable driving line on the LCDs is connected to scan drive cell, and the data-driven line on the LCDs is connected to the data-driven unit.
Liquid crystal TV set of the present invention comprises sequential control system and above-mentioned LCD at least.Sequential control system is connected to LCD and luma data is transferred to the scan drive cell in the said LCD.Make stable state left eye (right eye) signal in the backlight control zone more, reduce crosstalking of fast gate-type 3D LCD.
Preferred embodiment one: as shown in Figure 2; LCDs is provided with 1366 * 768 picture element modules; Also be provided with turntable driving line and data-driven line on the LCDs, capable picture element module of Gi1 and the capable picture element module of Gi2 are connected on same the turntable driving line Gi.
Each picture element module (PIEXL) in capable picture element module of Gi1 and the capable picture element module of Gi2 all comprises three liquid crystal cells, and liquid crystal cells comprises liquid crystal that is connected and the FET of controlling the liquid crystal upset.Three liquid crystal are respectively red (R), green (G) and blue (B).The grid of FET is connected on the turntable driving line, and drain electrode connects liquid crystal, and source electrode is connected on the data-driven line.
Wherein, the capable picture element module of Gi1 comprises M1 liquid crystal cells, M2 liquid crystal cells and M3 liquid crystal cells; Gi2 is capable, and picture element module comprises P1 liquid crystal cells, P2 liquid crystal cells and P3 liquid crystal cells.
The M1 liquid crystal cells connects J column data drive wire, and the M2 liquid crystal cells connects J+2 column data drive wire, and the M3 liquid crystal cells connects J+4 column data drive wire; The P1 liquid crystal cells connects J+1 column data drive wire, and the P2 liquid crystal cells connects J+3 column data drive wire, and the P3 liquid crystal cells connects J+5 column data drive wire.
When turntable driving line Gi provided cut-in voltage, capable picture element module of Gi1 and the capable picture element module of Gi2 all were in opening.This moment, the data-driven unit obtained the luma data that the sequential control system transmission comes, to J+4 column data drive wire and J+1 column data drive wire making alive.Then the capable picture element module of Gi1 has lighted blueness, and Gi2 is capable, and picture element module has lighted redness.
Using turntable driving line Gi in the present embodiment is that capable picture element module of Gi1 and the capable picture element module of Gi2 provide cut-in voltage simultaneously; Control the M3 liquid crystal cells by J+4 column data drive wire and show blueness, control P1 liquid crystal cells exhibit red by J+1 column data drive wire.Two row pressing mode have simultaneously been accelerated refresh rate, have reduced crosstalking of fast gate-type 3D LCD effectively.
Preferred embodiment two: LCDs is provided with 1920 * 1080 picture element modules; Also be provided with turntable driving line and data-driven line on the LCDs, the capable picture element module of Gi1, the capable picture element module of Gi2 and the capable picture element module of Gi3 are connected on same the turntable driving line Gi.
Each picture element module (PIEXL) in the capable picture element module of Gi1, the capable picture element module of Gi2 and the capable picture element module of Gi3 all comprises three liquid crystal cells, and liquid crystal cells comprises liquid crystal that is connected and the FET of controlling the liquid crystal upset.Three liquid crystal are respectively red (R), green (G) and blue (B).The grid of FET is connected on the turntable driving line, and drain electrode connects liquid crystal, and source electrode is connected on the data-driven line.
Wherein, the capable picture element module of Gi1 comprises M1 liquid crystal cells, M2 liquid crystal cells and M3 liquid crystal cells; The capable picture element module of Gi2 comprises P1 liquid crystal cells, P2 liquid crystal cells and P3 liquid crystal cells; Gi3 is capable, and picture element module comprises S1 liquid crystal cells, S2 liquid crystal cells and S3 liquid crystal cells
The M1 liquid crystal cells connects J column data drive wire, and the M2 liquid crystal cells connects J+3 column data drive wire, and the M3 liquid crystal cells connects J+6 column data drive wire; The P1 liquid crystal cells connects J+1 column data drive wire, and the P2 liquid crystal cells connects J+4 column data drive wire, and the P3 liquid crystal cells connects J+7 column data drive wire; The S1 liquid crystal cells connects J+2 column data drive wire, and the S2 liquid crystal cells connects J+5 column data drive wire, and the S3 liquid crystal cells connects J+8 column data drive wire.
When turntable driving line Gi provided cut-in voltage, the capable picture element module of Gi1, the capable picture element module of Gi2 and the capable picture element module of Gi3 all were in opening.This moment, the data-driven unit obtained the luma data that the sequential control system transmission comes, to J+3 column data drive wire, J+1 column data drive wire and J+8 column data drive wire making alive.Then the capable picture element module of Gi1 has lighted green, and the capable picture element module of Gi2 has lighted redness, and Gi3 is capable, and picture element module has lighted blueness.
Using turntable driving line Gi in the present embodiment is that the capable picture element module of Gi1, the capable picture element module of Gi2 and the capable picture element module of Gi3 provide cut-in voltage simultaneously; Controlling the M2 liquid crystal cells by J+3 column data drive wire shows green; Control P1 liquid crystal cells exhibit red by J+1 column data drive wire, control the S3 liquid crystal cells by J+8 column data drive wire and show blue.Triplex row pressing mode has simultaneously been accelerated refresh rate, has reduced crosstalking of fast gate-type 3D LCD effectively.
Preferred embodiment three: LCDs is provided with 1366 * 768 picture element modules, also is provided with turntable driving line and data-driven line on the LCDs, and capable picture element module of Gi1 and the capable picture element module of Gi2 are connected on same the turntable driving line Gi.
Each picture element module (PIEXL) in capable picture element module of Gi1 and the capable picture element module of Gi2 all comprises three liquid crystal cells, and liquid crystal cells comprises liquid crystal that is connected and the N type triode of controlling the liquid crystal upset.Three liquid crystal are respectively red (R), green (G) and blue (B).The base stage of triode is connected on the turntable driving line, and emitter connects liquid crystal, and collector is connected on the data-driven line.
Wherein, the capable picture element module of Gi1 comprises M1 liquid crystal cells, M2 liquid crystal cells and M3 liquid crystal cells; Gi2 is capable, and picture element module comprises P1 liquid crystal cells, P2 liquid crystal cells and P3 liquid crystal cells.
The M1 liquid crystal cells connects J column data drive wire, and the M2 liquid crystal cells connects J+2 column data drive wire, and the M3 liquid crystal cells connects J+4 column data drive wire; The P1 liquid crystal cells connects J+1 column data drive wire, and the P2 liquid crystal cells connects J+3 column data drive wire, and the P3 liquid crystal cells connects J+5 column data drive wire.
When turntable driving line Gi provided cut-in voltage, capable picture element module of Gi1 and the capable picture element module of Gi2 all were in opening.This moment, the data-driven unit obtained the luma data that the sequential control system transmission comes, to J+4 column data drive wire and J+1 column data drive wire making alive.Then the capable picture element module of Gi1 has lighted blueness, and Gi2 is capable, and picture element module has lighted redness.
In the main difference of present embodiment and preferred embodiment one is to adopt triode to substitute FET as electronic switch, utilizes the maturity of triode series of products to improve the stability in use of LCD.Turntable driving line Gi is that capable picture element module of Gi1 and the capable picture element module of Gi2 provide cut-in voltage simultaneously, controls the M3 liquid crystal cells by J+4 column data drive wire and shows blueness, controls P1 liquid crystal cells exhibit red by J+1 column data drive wire.Two row pressing mode have simultaneously been accelerated refresh rate, have reduced crosstalking of fast gate-type 3D LCD effectively, make the display effect of LCD good.
Preferred embodiment four: LCDs is provided with 1920 * 1080 picture element modules, also is provided with turntable driving line and data-driven line on the LCDs, and capable picture element module of Gi1 and the capable picture element module of Gi2 are connected on same the turntable driving line Gi.
Each picture element module (PIEXL) in capable picture element module of Gi1 and the capable picture element module of Gi2 all comprises three liquid crystal cells, and liquid crystal cells comprises liquid crystal that is connected and the FET of controlling the liquid crystal upset.Three liquid crystal are respectively red (R), green (G) and blue (B).The grid of FET is connected on the turntable driving line, and drain electrode connects liquid crystal, and source electrode is connected on the data-driven line.
Wherein, the capable picture element module of Gi1 comprises M1 liquid crystal cells, M2 liquid crystal cells and M3 liquid crystal cells; Gi2 is capable, and picture element module comprises P1 liquid crystal cells, P2 liquid crystal cells and P3 liquid crystal cells.
Using identical data-driven line is two row picture element module pressurizations simultaneously.That is, J column data drive wire connects M1 liquid crystal cells and P1 liquid crystal cells simultaneously, and J+1 column data drive wire connects M2 liquid crystal cells and P2 liquid crystal cells simultaneously, and J+2 column data drive wire connects M3 liquid crystal cells and P3 liquid crystal cells simultaneously.
When turntable driving line Gi provided cut-in voltage, capable picture element module of Gi1 and the capable picture element module of Gi2 all were in opening.This moment, the data-driven unit obtained the luma data that the sequential control system transmission comes, and J+1 column data drive wire controls the M2 liquid crystal cells and the P2 liquid crystal cells shows green simultaneously.
This preferred embodiment is connected to two row picture element modules on the same single data drive wire with not being both of preferred embodiment one accordingly, shows identical content by two picture element modules of this data-driven line traffic control.Though on the resolution of picture, lose, improved the refresh rate of display, reduced and crosstalked.When displaying contents during to resolution less demanding, the characteristics of present embodiment are just apparent in view.
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. LCD method for refreshing is characterized in that: said method is that at least two row picture element modules are connected on the same turntable driving line in the LCD, for above-mentioned at least two row picture element modules cut-in voltage is provided simultaneously by said turntable driving line.
2. LCD method for refreshing according to claim 1 is characterized in that: each picture element module that is connected on the same turntable driving line all comprises three liquid crystal cells, and each said liquid crystal cells all connects different data-driven line; When said turntable driving line provides cut-in voltage, the liquid crystal cells conducting that is connected by said data-driven line traffic control.
3. LCD method for refreshing according to claim 1 and 2; It is characterized in that: said method is that the capable picture element module of N and the capable picture element module of N+1 of LCD is connected on the same turntable driving line, is that capable picture element module of N and the capable picture element module of N+1 provide cut-in voltage simultaneously by said turntable driving line;
M picture element module in the capable picture element module of N comprises three liquid crystal cells; When said turntable driving line provides cut-in voltage; The M1 liquid crystal cells is by J column data drive wire control conducting; The M2 liquid crystal cells is by J+2 column data drive wire control conducting, and the M3 liquid crystal cells is by J+4 column data drive wire control conducting;
P picture element module in the capable picture element module of N+1 comprises three liquid crystal cells; When said turntable driving line provides cut-in voltage; The P1 liquid crystal cells is by J+1 column data drive wire control conducting; The P2 liquid crystal cells is by J+3 column data drive wire control conducting, and the P3 liquid crystal cells is by J+5 column data drive wire control conducting.
4. LCDs, said display screen is provided with a plurality of picture element modules, and turntable driving line and data-driven line is characterized in that: at least two row picture element modules are connected on the same turntable driving line.
5. LCDs according to claim 4; It is characterized in that: each said picture element module comprises three liquid crystal cells; Said liquid crystal cells comprises liquid crystal that is connected and the electronic switch of controlling the liquid crystal upset, and the control end of said electronic switch is connected on the said turntable driving line; First controlled end of said electronic switch connects said liquid crystal, and second controlled end of said electronic switch is connected on the data-driven line.
6. LCDs according to claim 5 is characterized in that: second controlled end that is connected same the liquid crystal cells on the turntable driving line is connected on the different data-driven line.
7. LCDs according to claim 5 is characterized in that: said electronic switch is that three utmost points close or FET.
8. LCDs according to claim 5 is characterized in that: comprise in the said picture element module that three liquid crystal cells are respectively red liquid crystal unit, green liquid crystal unit and blue liquid crystal unit.
9. LCD; At least comprise scan drive cell and data-driven unit; It is characterized in that: comprise that also the turntable driving line is connected to scan drive cell like the described LCDs of the arbitrary right of claim 4 to 8, the data-driven line is connected to the data-driven unit.
10. a liquid crystal TV set comprises sequential control system at least, it is characterized in that, said sequential control system is connected to LCD as claimed in claim 9, and luma data is transferred to the scan drive cell in the said LCD.
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| CN2012101528951A CN102646405A (en) | 2012-05-17 | 2012-05-17 | Liquid crystal display refreshing method, liquid crystal display screen, display and television |
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| CN2012101528951A CN102646405A (en) | 2012-05-17 | 2012-05-17 | Liquid crystal display refreshing method, liquid crystal display screen, display and television |
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| CN109064992A (en) * | 2018-10-26 | 2018-12-21 | 信利半导体有限公司 | Car-mounted display mould group, car-mounted display instrument and vehicle |
| CN110473504A (en) * | 2019-08-06 | 2019-11-19 | 深圳创维－Rgb电子有限公司 | A kind of MINI LED backlight television image adjusting method and device |
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| WO2021022931A1 (en) * | 2019-08-06 | 2021-02-11 | 深圳创维－Rgb电子有限公司 | Image adjustment method and device for mini-led-backlit television |
| US11386856B2 (en) | 2019-08-06 | 2022-07-12 | Shenzhen Skyworth-Rgb Electronic Co., Ltd. | Method and device for adjusting mini led backlight television picture |
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Application publication date: 20120822 |