CN102207645A - Method and system for driving liquid crystal display panel - Google Patents
Method and system for driving liquid crystal display panel Download PDFInfo
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- CN102207645A CN102207645A CN2011100814364A CN201110081436A CN102207645A CN 102207645 A CN102207645 A CN 102207645A CN 2011100814364 A CN2011100814364 A CN 2011100814364A CN 201110081436 A CN201110081436 A CN 201110081436A CN 102207645 A CN102207645 A CN 102207645A
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Abstract
The invention relates to a display panel driving technology. Wherein, a scanning process of a display panel is divided into a first moment and a second moment; at the first moment, parts of pixels in the display panel are enabled to develop normally, and other pixels are enabled to develop black pictures; and at the second moment, the pixels which develop black pictures at the first moment develop normally, and the pixels which develop normally at the first moment develop black pictures.
Description
The application is dividing an application of No. 200610128551.1 Chinese patent application that is entitled as " driving method of display panels and system " submitted on August 30th, 2006.
[technical field]
The present invention is about a kind of driving method and system of display panels, refers to especially a kind ofly insert black picture under picture transfer rate (frame rate) condition not improving.
[background technology]
Under the characteristic of liquid crystal display, the situation that dynamically has animation fuzzy (motion blur) that human eye is seen takes place, the object in can feeling to move, and moving of meeting one lattice one lattice, natural.Therefore therefore prior art deceives picture in the middle insertion of each picture (frame) for solving the above problems.When black picture produced, the vision of human eye had the characteristic of dynamic tracing, can with moving of object one lattice one lattice, couple together automatically when deceiving picture.
See also Fig. 1, insert the driving method and the system of black picture for the available liquid crystal display panel.As shown in Figure 1, display panels 200 is 100 formations of a plurality of pixels (pixel) of being arranged by matrix-style, and wherein 100 of each pixels have mainly comprised a liquid crystal capacitance C1, a thin film transistor (TFT) (TFT) 101 and a storage capacitors C2.
The drain electrode of thin film transistor (TFT) 101 and grid be connected respectively data line D1, D2, D3 ..., Dg and sweep trace G1, G2 ..., Gm, its source electrode is connected to the electrode of liquid crystal capacitance C1 one side, the electrode of liquid crystal capacitance C1 opposite side is connected to a common electrode Vcom.The source electrode of thin film transistor (TFT) 101 also is connected to the electrode of this storage capacitors C2 one side, and the electrode of the opposite side of storage capacitors C2 is connected to a common electrode V
DCIn addition, data line and sweep trace then are connected respectively to a data driver 202 and one scan driver 204, and control the action of each pixel according to corresponding image data and scan-data.
At first, scanner driver 204 activates the grid voltage of thin film transistor (TFT) 101 with drive thin film transistors 101.Then first display voltage with first picture writes liquid crystal capacitance C1.Through behind the certain hour, before the grid voltage that changes thin film transistor (TFT)s 101 at scanner driver 204 writes liquid crystal capacitance C1 with drive thin film transistors 101 again and with second display voltage of second picture, the first gated sweep driver 204 of scan control data meeting changes the grid voltage of thin film transistor (TFT)s 101, and the display voltage of this liquid crystal capacitance C1 is coupled into black rank voltage (also promptly black picture).
Yet, utilize the mode of black plug picture at present in the prior art, owing to need in same picture, all sweep traces to be activated twice,, also be that sweep frequency needs to increase to 120Hz by 60Hz so need the picture transfer rate (frame rate) of twice to change picture speed.That is to say that a part of time is used for giving picture element correct display voltage, Yi Bufen time then is coupled into picture element black rank voltage (also promptly black picture) in addition.But in large-sized LCD TV or LCD, because the speed that signal transmits can need the long time along with panel size increases, therefore provide under the situation of enough duration of charging of liquid crystal capacitance (charging time) at need, be difficult to satisfy the demand that sweep frequency is 120Hz really.And can't reach under the demand that sweep frequency is 120Hz, will cause the large scale liquid crystal panel on dynamic menu, image residue is arranged easily, have a strong impact on image quality.
[summary of the invention]
The present invention discloses a kind of display panel drive technique.The display panel that is driven comprises a plurality of pixels that are arranged in matrix.
In one embodiment, the driving method of disclosed display panel may further comprise the steps: in one first moment, one first picture is shown in the pixel of even column, and one second picture is shown in the pixel of odd column; And, this first picture is shown in the pixel of odd column, and this second picture is shown in the pixel of even column in one second moment that is connected in this first moment.This first picture and this second picture wherein one be black picture.
In one embodiment, the driving method of disclosed display panel may further comprise the steps: in one first constantly, one first picture is shown in the pixel of odd-numbered line even column and even number line odd column, and one second picture is shown in the pixel of odd-numbered line odd column and even number line even column; And, this first picture is shown in the pixel of odd-numbered line odd column and even number line even column, and this second picture is shown in the pixel of odd-numbered line even column and even number line odd column in one second moment that is connected in this first moment.This first picture and this second picture wherein one be black picture.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, embodiment cited below particularly, and cooperate appended diagram, be described in detail as follows.
[description of drawings]
Fig. 1 inserts the driving method and the system of black picture for the available liquid crystal display panel.
Fig. 2 inserts the driving method and the system of black picture for the display panels of the present invention's first preferred embodiment.
Fig. 3 inserts the driving method and the system of black picture for the display panels of the present invention's second preferred embodiment.
Fig. 4 inserts the driving method and the system of black picture for the display panels of the present invention's the 3rd preferred embodiment.
[primary clustering symbol description]
100 pixels
101 thin film transistor (TFT)s
200 display panels
202 data drivers
204 scanner drivers
The C1 liquid crystal capacitance
The C2 storage capacitors
D1, D2, D3 ..., the Dg data line
G1, G2 ..., the Gm sweep trace
Vcom, V
DCCommon electrode
300 pixels
301 the first film transistors
302 second thin film transistor (TFT)s
400 display panels
402 data drivers
404 scanner drivers
500 pixels
501 the first film transistors
502 second thin film transistor (TFT)s
600 display panels
602 data drivers
604 scanner drivers
700 pixels
701 the first film transistors
702 second thin film transistor (TFT)s
800 display panels
802 data drivers
804 scanner drivers
[embodiment]
Please refer to Fig. 2, insert the driving method and the system of black picture for the display panels of the present invention's first preferred embodiment.As shown in Figure 2, display panels 400 is 300 formations of a plurality of pixels (pixel) of being arranged by matrix-style, and wherein 300 of each pixels have mainly comprised a liquid crystal capacitance C1, a first film transistor 301, one second thin film transistor (TFT) 302 and a storage capacitors C2.
Grid connection sweep trace G1, the G2 of this first film transistor 301 ..., Gm-1, its drain electrode is connected to one first common electrode V
DC, its source electrode is connected to the electrode of this liquid crystal capacitance C1 one side, and the electrode of this liquid crystal capacitance C1 opposite side is connected to one second common electrode Vcom.The drain electrode of this second thin film transistor (TFT) 302 and grid be connected respectively data line D1, D2, D3 ..., Dg and sweep trace G2, G3 ..., Gm, its source electrode is connected to the electrode of this liquid crystal capacitance C1 one side.The source electrode of the source electrode of this first film transistor 301 and this second thin film transistor (TFT) 302 also is connected to the electrode of this storage capacitors C2 one side, and the electrode of the opposite side of this storage capacitors C2 is connected to this first common electrode V
DCIn addition, data line and sweep trace then are connected to a data driver 402 and one scan driver 404, and control the action of each pixel according to corresponding image data and scan-data.
At first, first display voltage at first picture, during first moment, this scanner driver 404 by odd number bar sweep trace G1, G3, G5 ... activate the grid voltage of described the first film transistor 301, to drive described the first film transistor 301, two terminal potentials of then described liquid crystal capacitance C1 are this first common electrode V
DCAccurate position and the accurate position of this second common electrode Vcom.(Normally Black, NB) display panels is with this first common electrode V for normally deceiving
DCAccurate position furnishing have identical accurate with this second common electrode Vcom.If for normally (Normally White, NW) display panels is with this first common electrode V in vain
DCAccurate position furnishing have inequality accurate with this second common electrode Vcom.Promptly be that the display voltage with the described liquid crystal capacitance C1 of odd column is coupled into black rank voltage (also promptly black picture) this moment.Connect simultaneously odd number bar sweep trace G3, G5 ... described second thin film transistor (TFT) 302 of even column, this scanner driver 404 by odd number bar sweep trace G3, G5 ... activate the grid voltage of described second thin film transistor (TFT) 302, to drive described second thin film transistor (TFT) 302, by this data line D1, D2, D3 ..., Dg, first display voltage of this first picture is write the described liquid crystal capacitance C1 of even column.Therefore the display voltage of the described liquid crystal capacitance C1 of odd column is coupled into black rank voltage (also promptly black picture), and the described liquid crystal capacitance C1 of this even column has first display voltage of this first picture.
Then, first display voltage at identical first picture, during second moment, this scanner driver 404 by even number bar sweep trace G2, G4, G6 ... activate the grid voltage of described the first film transistor 301, to drive described the first film transistor 301, two terminal potentials of then described liquid crystal capacitance C1 are this first common electrode V
DCAccurate position and the accurate position of this second common electrode Vcom.(Normally Black, NB) display panels is with this first common electrode V for normally deceiving
DCAccurate position furnishing have identical accurate with this second common electrode Vcom.If for normally (Normally White, NW) display panels is with this first common electrode V in vain
DCAccurate position furnishing have inequality accurate with this second common electrode Vcom.Promptly be that the display voltage with the described liquid crystal capacitance C1 of even column is coupled into black rank voltage (also promptly black picture) this moment.Connect simultaneously even number bar sweep trace G2, G4 ... described second thin film transistor (TFT) 302 of odd column pixel, this scanner driver 404 by even number bar sweep trace G2, G4 ... activate the grid voltage of described second thin film transistor (TFT) 302, to drive described second thin film transistor (TFT) 302, by this data line D1, D2, D3 ..., Dg, first display voltage of this first picture is write the described liquid crystal capacitance C1 of odd column pixel.Therefore the display voltage of the described liquid crystal capacitance C1 of this even column pixel is coupled into black rank voltage (also promptly black picture), and the described liquid crystal C1 of this odd column pixel has first display voltage of this first picture.
When second display voltage at second picture, during the 3rd moment, this scanner driver 404 by odd number bar sweep trace G1, G3, G5 ... activate the grid voltage of this first film transistor 301, to drive this first film transistor 301, then two terminal potentials of this liquid crystal capacitance C1 are this first common electrode V
DCAccurate position and the accurate position of this second common electrode Vcom.(Normally Black, NB) display panels is with this first common electrode V for normally deceiving
DCAccurate position furnishing have identical accurate with this second common electrode Vcom.If for normally (Normally White, NW) display panels is with this first common electrode V in vain
DCAccurate position furnishing have inequality accurate with this second common electrode Vcom.Promptly be that the display voltage with this liquid crystal capacitance C1 of odd column pixel is coupled into black rank voltage (also promptly black picture) this moment.Connect simultaneously odd number bar sweep trace G3, G5 ... this second thin film transistor (TFT) 302 of even column, this scanner driver 404 by odd number bar sweep trace G3, G5 ... activate the grid voltage of this second thin film transistor (TFT) 302, to drive this second thin film transistor (TFT) 302, by this data line D1, D2, D3 ..., Dg, second display voltage of this second picture is write this liquid crystal capacitance C1 of even column pixel.Therefore the display voltage of this liquid crystal capacitance C1 of odd column pixel is coupled into black rank voltage (also promptly black picture), and this liquid crystal capacitance C1 of this even column pixel has second display voltage of this second picture.
Then, second display voltage at identical second picture, during the 4th moment, this scanner driver 404 by even number bar sweep trace G2, G4, G6 ... activate the grid voltage of this first film transistor 301, to drive this first film transistor 301, then two terminal potentials of this liquid crystal capacitance C1 are this first common electrode V
DCAccurate position and the accurate position of this second common electrode Vcom.(Normally Black, NB) display panels is with this first common electrode V for normally deceiving
DCAccurate position furnishing have identical accurate with this second common electrode Vcom.If for normally (Normally White, NW) display panels is with this first common electrode V in vain
DCAccurate position furnishing have inequality accurate with this second common electrode Vcom.Promptly be that the display voltage with this liquid crystal capacitance C1 of even column pixel is coupled into black rank voltage (also promptly black picture) this moment.Connect simultaneously even number bar sweep trace G2, G4 ... this second thin film transistor (TFT) 302 of odd column pixel, this scanner driver 404 by even number bar sweep trace G2, G4 ... activate the grid voltage of this second thin film transistor (TFT) 302, to drive this second thin film transistor (TFT) 302, by this data line D1, D2, D3 ..., Dg, second display voltage of this second picture is write this liquid crystal capacitance C1 of odd column pixel.Therefore the display voltage of this liquid crystal capacitance C1 of this even column pixel is coupled into black rank voltage (also promptly black picture), and this liquid crystal capacitance C1 of this odd column pixel has second display voltage of this second picture.
The rest may be inferred, the 3rd display voltage of three-picture, the 4th display voltage of the 4th picture ... write this liquid crystal capacitance C1 of this odd column pixel and this liquid crystal capacitance C1 of this even column pixel one by one.Therefore the invention by this case is at same picture, in can this liquid crystal capacitance C1 with staggered this liquid crystal capacitance C1 that is presented at this odd column pixel of picture and this even column pixel, and will deceive among this liquid crystal capacitance C1 of staggered this liquid crystal C1 of insertion of picture and this even column pixel, reach and to promote picture transfer rate (frame rate), can reach good picture display quality and picture and change speed.
Please refer to Fig. 3, insert the driving method and the system of black picture for the display panels of the present invention's second preferred embodiment.As shown in Figure 3, display panels 600 is 500 formations of a plurality of pixels (pixel) of being arranged by matrix-style, and wherein 500 of each pixels have mainly comprised a liquid crystal capacitance C1, a first film transistor 501, one second thin film transistor (TFT) 502 and a storage capacitors C2.
Grid connection sweep trace G1, the G2 of this first film transistor 501 of odd-numbered line pixel ..., Gm-1, its source electrode is connected to the electrode of this liquid crystal capacitance C1 one side, the electrode of this liquid crystal capacitance C1 opposite side is connected to one second common electrode Vcom.Again the drain electrode of this first film transistor 501 of odd-numbered line pixel connect respectively data line D1, D3, D5 ...
Grid connection sweep trace G2, the G3 of this second thin film transistor (TFT) 502 of odd-numbered line pixel ..., Gm, its source electrode is connected to the electrode of this liquid crystal capacitance C1 one side.Wherein the drain electrode of second thin film transistor (TFT) 502 of odd-numbered line pixel is connected to this first common electrode V
DC
The source electrode of the source electrode of this first film transistor 501 of odd-numbered line pixel and this second thin film transistor (TFT) 502 of odd-numbered line pixel also is connected to the electrode of this storage capacitors C2 one side, and the electrode of the opposite side of this storage capacitors C2 is connected to this first common electrode V
DC
Grid connection sweep trace G2, the G3 of this first film transistor 501 of even number line pixel ..., Gm, its source electrode is connected to the electrode of this liquid crystal capacitance C1 one side, the electrode of this liquid crystal capacitance C1 opposite side is connected to one second common electrode Vcom.Again the drain electrode of this first film transistor 501 of even number line pixel connect respectively data line D2, D4, D6 ...
Grid connection sweep trace G1, the G2 of this second thin film transistor (TFT) 502 of even number line pixel ..., Gm-1, its source electrode is connected to the electrode of this liquid crystal capacitance C1 one side, its drain electrode is connected to this first common electrode V
DC
The source electrode of the source electrode of this first film transistor 501 of even number line pixel and this second thin film transistor (TFT) 502 of even number line pixel also is connected to the electrode of this storage capacitors C2 one side, and the electrode of the opposite side of this storage capacitors C2 is connected to this first common electrode V
DC
In addition, data line and sweep trace then are connected to a data driver 602 and one scan driver 604, and control the action of each pixel according to corresponding image data and scan-data.
At first, first display voltage at first picture, during first moment, this scanner driver 604 is by odd number bar sweep trace G1, G3, G5, activate the grid voltage of described second thin film transistor (TFT) 502 of even number line odd column pixel, to drive described second thin film transistor (TFT) 502, and the grid voltage that activates the described the first film transistor 501 of odd-numbered line even column pixel, to drive described the first film transistor 501, then two terminal potentials of the described liquid crystal capacitance C1 of two terminal potentials of the described liquid crystal capacitance C1 of even number line odd column pixel and odd-numbered line even column pixel are this first common electrode V
DCAccurate position and the accurate position of this second common electrode Vcom.(Normally Black, NB) display panels is with this first common electrode V for normally deceiving
DCAccurate position furnishing have identical accurate with this second common electrode Vcom.If for normally (Normally White, NW) display panels is with this first common electrode V in vain
DCAccurate position furnishing have inequality accurate with this second common electrode Vcom.Promptly be that the display voltage with the described liquid crystal capacitance C1 of two terminal potentials of the described liquid crystal capacitance C1 of even number line odd column pixel and odd-numbered line even column pixel is coupled into black rank voltage (also promptly black picture) this moment.Connect odd number bar sweep trace G1 simultaneously, G3, G5, the described the first film transistor 501 of odd-numbered line odd column pixel and described second thin film transistor (TFT) 502 of even number line even column pixel, this scanner driver 604 is by odd number bar sweep trace G1, G3, G5, the grid voltage of the grid voltage of the first film transistor 501 of actuating odd-numbered line odd column pixel and the first film transistor 501 of even number line even column pixel, with the first film transistor 501 of driving odd-numbered line odd column pixel and the first film transistor 501 of even number line even column pixel, by this data line D1, D2, D3, Dg writes the described liquid crystal capacitance C1 of odd-numbered line odd column pixel and the described liquid crystal capacitance C1 of even number line even column pixel with first display voltage of this first picture.Therefore the display voltage of the described liquid crystal capacitance C1 of odd-numbered line even column pixel and even number line odd column pixel is coupled into black rank voltage (also promptly black picture), and the described liquid crystal capacitance C1 of odd-numbered line odd column pixel and even number line even column pixel has first display voltage of this first picture.
Then, first display voltage at identical first picture, during second moment, this scanner driver 604 is by even number bar sweep trace G2, G4, G6, activate the grid voltage of described second thin film transistor (TFT) 502 of odd-numbered line odd column pixel, to drive described second thin film transistor (TFT) 502, and the grid voltage that activates described second thin film transistor (TFT) 502 of even number line even column pixel, to drive described second thin film transistor (TFT) 502, then two terminal potentials of the described liquid crystal capacitance C1 of two terminal potentials of the described liquid crystal capacitance C1 of odd-numbered line odd column pixel and even number line even column pixel are this first common electrode V
DCAccurate position and the accurate position of this second common electrode Vcom.(Normally Black, NB) display panels is with this first common electrode V for normally deceiving
DCAccurate position furnishing have identical accurate with this second common electrode Vcom.If for normally (Normally White, NW) display panels is with this first common electrode V in vain
DCAccurate position furnishing have inequality accurate with this second common electrode Vcom.Promptly be that the display voltage with the described liquid crystal capacitance C1 of two terminal potentials of the described liquid crystal capacitance C1 of odd-numbered line odd column pixel and even number line even column pixel is coupled into black rank voltage (also promptly black picture) this moment.Connect even number bar sweep trace G2 simultaneously, G4, the described the first film transistor 501 of odd-numbered line even column pixel and the described the first film transistor 501 of even number line odd column pixel, this scanner driver 604 is by even number bar sweep trace G2, G4, the grid voltage of the described the first film transistor 501 of actuating odd-numbered line even column pixel and the described the first film transistor 501 of even number line odd column pixel, with the described the first film transistor 501 of driving odd-numbered line even column pixel and the described the first film transistor 501 of even number line odd column pixel, by this data line D1, D2, D3, Dg, with first display voltage of this first picture write odd-numbered line even column pixel described liquid crystal capacitance C1 and the described liquid crystal capacitance C1 of even number line odd column pixel.Therefore the display voltage of the described liquid crystal capacitance C1 of the described liquid crystal capacitance C1 of odd-numbered line odd column pixel and even number line even column pixel is coupled into black rank voltage (also promptly black picture), and the described liquid crystal capacitance C1 of the described liquid crystal capacitance C1 of odd-numbered line even column pixel and even number line odd column pixel has first display voltage of this first picture.
When second display voltage at second picture, during the 3rd moment, this scanner driver 604 is by odd number bar sweep trace G1, G3, G5, activate the grid voltage of described second thin film transistor (TFT) 502 of even number line odd column, to drive described second thin film transistor (TFT) 502, and the grid voltage that activates described second thin film transistor (TFT) 502 of odd-numbered line even column pixel, to drive described second thin film transistor (TFT) 502, then two terminal potentials of the described liquid crystal capacitance C1 of two terminal potentials of the described liquid crystal capacitance C1 of even number line odd column pixel and odd-numbered line even column pixel are this first common electrode V
DCAccurate position and the accurate position of this second common electrode Vcom.(Normally Black, NB) display panels is with this first common electrode V for normally deceiving
DCAccurate position furnishing have identical accurate with this second common electrode Vcom.If for normally (Normally White, NW) display panels is with this first common electrode V in vain
DCAccurate position furnishing have inequality accurate with this second common electrode Vcom.Promptly be that the display voltage with this liquid crystal capacitance C1 of odd column is coupled into black rank voltage (also promptly black picture) this moment.Connect odd number bar sweep trace G1 simultaneously, G3, G5, the described the first film transistor 501 of odd-numbered line odd column pixel and the described the first film transistor 501 of even number line even column pixel, this scanner driver 604 is by odd number bar sweep trace G1, G3, G5, the grid voltage of the grid voltage of the first film transistor 501 of actuating odd-numbered line odd column pixel and the first film transistor 501 of even number line even column pixel, with the first film transistor 501 of driving odd-numbered line odd column pixel and the first film transistor 501 of even number line even column pixel, by this data line D1, D2, D3, Dg writes the described liquid crystal capacitance C1 of odd-numbered line odd column pixel and the described liquid crystal capacitance C1 of even number line even column pixel with second display voltage of this second picture.Therefore the display voltage of the described liquid crystal capacitance C1 of odd-numbered line even column pixel and even number line odd column pixel is coupled into black rank voltage (also promptly black picture), and the described liquid crystal capacitance C1 of odd-numbered line odd column pixel and even number line even column pixel has second display voltage of this second picture.
Then, second display voltage at identical second picture, during the 4th moment, this scanner driver 604 is by even number bar sweep trace G2, G4, G6, activate the grid voltage of described second thin film transistor (TFT) 502 of odd-numbered line odd column pixel, to drive described second thin film transistor (TFT) 502, and the grid voltage that activates described second thin film transistor (TFT) 502 of even number line even column pixel, to drive described second thin film transistor (TFT) 502, then two terminal potentials of the described liquid crystal capacitance C1 of two terminal potentials of the described liquid crystal capacitance C1 of odd-numbered line odd column pixel and even number line even column pixel are this first common electrode V
DCAccurate position and the accurate position of this second common electrode Vcom.(Normally Black, NB) display panels is with this first common electrode V for normally deceiving
DCAccurate position furnishing have identical accurate with this second common electrode Vcom.If for normally (Normally White, NW) display panels is with this first common electrode V in vain
DCAccurate position furnishing have inequality accurate with this second common electrode Vcom.Promptly be that the display voltage with the described liquid crystal capacitance C1 of two terminal potentials of the described liquid crystal capacitance C1 of odd-numbered line odd column pixel and even number line even column pixel is coupled into black rank voltage (also promptly black picture) this moment.Connect even number bar sweep trace G2 simultaneously, G4, the described the first film transistor 501 of odd-numbered line even column pixel and the described the first film transistor 501 of even number line odd column pixel, this scanner driver 604 is by even number bar sweep trace G2, G4, the grid voltage of the described the first film transistor 501 of actuating odd-numbered line even column pixel and the described the first film transistor 501 of even number line odd column pixel, with the described the first film transistor 501 of driving odd-numbered line even column pixel and the described the first film transistor 501 of even number line odd column pixel, by this data line D1, D2, D3, Dg writes the described liquid crystal capacitance C1 of odd-numbered line even column pixel and the described liquid crystal capacitance C1 of even number line odd column pixel with second display voltage of this second picture.Therefore the display voltage of the described liquid crystal capacitance C1 of the described liquid crystal capacitance C1 of odd-numbered line odd column pixel and even number line even column pixel is coupled into black rank voltage (also promptly black picture), and the described liquid crystal capacitance C1 of the described liquid crystal capacitance C1 of odd-numbered line even column pixel and even number line odd column pixel has second display voltage of this second picture.
The rest may be inferred, the 3rd display voltage of three-picture, the 4th display voltage of the 4th picture ... write this liquid crystal capacitance C1 one by one.Therefore the invention by this case is at same picture, in can described liquid crystal capacitance C1 with the staggered described liquid crystal capacitance C1 that is presented at odd-numbered line even column pixel and even number line odd column pixel of picture and odd-numbered line odd column pixel and even number line even column pixel, and will deceive among the described liquid crystal capacitance C1 of the staggered described liquid crystal capacitance C1 that inserts odd-numbered line even column pixel and even number line odd column pixel of picture and odd-numbered line odd column pixel and even number line even column pixel, reach and to promote picture transfer rate (frame rate), can reach good picture display quality and picture and change speed.
Please refer to Fig. 4, insert the driving method and the system of black picture for the display panels of the present invention's the 3rd preferred embodiment.As shown in Figure 4, display panels 800 is 700 formations of a plurality of pixels (pixel) of being arranged by matrix-style, and wherein 700 of each pixels have mainly comprised a liquid crystal capacitance C1, a first film transistor 701 and a storage capacitors C2.Wherein the even number line pixel more comprises one second thin film transistor (TFT) 702.
Grid connection sweep trace G1, the G2 of this first film transistor 701 ..., Gm-1, its source electrode is connected to the electrode of this liquid crystal capacitance C1 one side and the electrode of this storage capacitors C2 one side, the electrode of this liquid crystal capacitance C1 opposite side is connected to one second common electrode Vcom, and the electrode of the opposite side of this storage capacitors C2 is connected to one first common electrode V
DC, its drain electrode connect respectively data line D1, D2, D3, D4 ...
Grid connection sweep trace G2, the G3 of this second thin film transistor (TFT) 702 of even number line pixel ..., Gm, its source electrode is connected to the electrode of this liquid crystal capacitance C1 one side, its drain electrode is connected to the source electrode of this first film transistor 701 of the adjacent odd-numbered line pixel of same row.
In addition, data line and sweep trace then are connected to a data driver 802 and one scan driver 804, and control the action of each pixel according to corresponding image data and scan-data.
At first, first display voltage at first picture, during first moment, this scanner driver 804 is by odd number bar sweep trace G1, G3, G5, activate the grid voltage of the described the first film transistor 701 of odd column pixel, to drive described the first film transistor 701, and the grid voltage that activates described second thin film transistor (TFT) 702 of even number line even column pixel, to drive described second thin film transistor (TFT) 702, then because even number line even column pixel is opposite with the polarity of odd-numbered line even column pixel, therefore when described second thin film transistor (TFT), 702 conductings of even number line even column pixel, make the even number line even column pixel of neighbor and the current potential of odd-numbered line even column pixel neutralize, cause the two ends potential difference (PD) approaching zero of the described liquid crystal capacitance C1 of even column pixel.(the even column pixel is shown as black picture for Normally Black, NB) display panels for normally deceiving.
Connect simultaneously odd number bar sweep trace G1, G3, G5 ... the described the first film transistor 701 of odd column pixel, this scanner driver 804 by odd number bar sweep trace G1, G3, G5 ... activate the grid voltage of the first film transistor 701 of odd column pixel, to drive the first film transistor 701 of odd column pixel, by this data line D1, D2, D3 ..., Dg, first display voltage of this first picture is write the described liquid crystal capacitance C1 of odd column pixel.Therefore the display voltage of the described liquid crystal capacitance C1 of even column pixel is coupled into black rank voltage (also promptly black picture), and the described liquid crystal capacitance C1 of odd column pixel has first display voltage of this first picture.
Then, first display voltage at identical first picture, during second moment, this scanner driver 804 is by even number bar sweep trace G2, G4, G6, activate the grid voltage of the described the first film transistor 701 of even column pixel, to drive described the first film transistor 701, and the grid voltage that activates described second thin film transistor (TFT) 702 of even number line odd column pixel, to drive described second thin film transistor (TFT) 702, then because even number line odd column pixel is opposite with the polarity of odd-numbered line odd column pixel, therefore when described second thin film transistor (TFT), 702 conductings of even number line odd column pixel, make the even number line odd column pixel of neighbor and the current potential of odd-numbered line odd column pixel neutralize, cause the two ends potential difference (PD) approaching zero of the described liquid crystal capacitance C1 of odd column pixel.(the odd column pixel is shown as black picture for Normally Black, NB) display panels for normally deceiving.
Connect simultaneously even number bar sweep trace G2, G4, G6 ... the described the first film transistor 701 of even column pixel, this scanner driver 804 by even number bar sweep trace G2, G4, G6 ... activate the grid voltage of the first film transistor 701 of even column pixel, to drive the first film transistor 701 of even column pixel, by this data line D1, D2, D3 ..., Dg, first display voltage of this first picture is write the described liquid crystal capacitance C1 of even column pixel.Therefore the display voltage of the described liquid crystal capacitance C1 of odd column pixel is coupled into black rank voltage (also promptly black picture), and the described liquid crystal capacitance C1 of even column pixel has first display voltage of this first picture.
When second display voltage at second picture, during the 3rd moment, this scanner driver 804 is by odd number bar sweep trace G1, G3, G5, activate the grid voltage of the described the first film transistor 701 of odd column pixel, to drive described the first film transistor 701, and the grid voltage that activates described second thin film transistor (TFT) 702 of even number line even column pixel, to drive described second thin film transistor (TFT) 702, then because even number line even column pixel is opposite with the polarity of odd-numbered line even column pixel, therefore when described second thin film transistor (TFT), 702 conductings of even number line even column pixel, make the even number line even column pixel of neighbor and the current potential of odd-numbered line even column pixel neutralize, cause the two ends potential difference (PD) approaching zero of the described liquid crystal capacitance C1 of even column pixel.(the even column pixel is shown as black picture for Normally Black, NB) display panels for normally deceiving.
Connect simultaneously odd number bar sweep trace G1, G3, G5 ... the described the first film transistor 701 of odd column pixel, this scanner driver 804 by odd number bar sweep trace G1, G3, G5 ... activate the grid voltage of the first film transistor 701 of odd column pixel, to drive the first film transistor 701 of odd column pixel, by this data line D1, D2, D3 ..., Dg, second display voltage of this second picture is write the described liquid crystal capacitance C1 of odd column pixel.Therefore the display voltage of the described liquid crystal capacitance C1 of even column pixel is coupled into black rank voltage (also promptly black picture), and the described liquid crystal capacitance C1 of odd column pixel has second display voltage of this second picture.
Then, second display voltage at identical second picture, during the 4th moment, this scanner driver 804 is by even number bar sweep trace G2, G4, G6, activate the grid voltage of the described the first film transistor 701 of even column pixel, to drive described the first film transistor 701, and the grid voltage that activates described second thin film transistor (TFT) 702 of even number line odd column pixel, to drive described second thin film transistor (TFT) 702, then because even number line odd column pixel is opposite with the polarity of odd-numbered line odd column pixel, therefore when described second thin film transistor (TFT), 702 conductings of even number line odd column pixel, make the even number line odd column pixel of neighbor and the current potential of odd-numbered line odd column pixel neutralize, cause the two ends potential difference (PD) approaching zero of the described liquid crystal capacitance C1 of odd column pixel.(the odd column pixel is shown as black picture for Normally Black, NB) display panels for normally deceiving.
Connect simultaneously even number bar sweep trace G2, G4, G6 ... the described the first film transistor 701 of even column pixel, this scanner driver 804 by even number bar sweep trace G2, G4, G6 ... activate the grid voltage of the first film transistor 701 of even column pixel, to drive the first film transistor 701 of even column pixel, by this data line D1, D2, D3 ..., Dg, second display voltage of this second picture is write the described liquid crystal capacitance C1 of even column pixel.Therefore the display voltage of the described liquid crystal capacitance C1 of odd column pixel is coupled into black rank voltage (also promptly black picture), and the described liquid crystal capacitance C1 of even column pixel has second display voltage of this second picture.
The rest may be inferred, the 3rd display voltage of three-picture, the 4th display voltage of the 4th picture ... write this liquid crystal capacitance C1 one by one.Therefore the invention by this case is at same picture, picture can be interlocked and be presented among the described liquid crystal capacitance C1 of odd column pixel and even column pixel, among the described liquid crystal capacitance C1 with black picture staggered insertion odd column pixel and even column pixel, reach and to promote picture transfer rate (frame rate), can reach good picture display quality and picture and change speed.
Therefore even be applied in large-sized LCD TV or LCD, need not increase sweep frequency, along with resolution or the area of liquid crystal panel is big more, also can produce the quality of good liquid crystal display picture.
The specific embodiment of the invention described above can understand the personage who knows this technology with diagram system, yet the interest field of this patent is not confined to the foregoing description.
Comprehensively above-mentioned, purpose of the present invention fully and is effectively disclosed.This case must be thought and is to modify right neither taking off as Protector that attached claim is desired as all by the personage Ren Shi craftsman who knows this technology.
Claims (10)
1. the driving method of a display panel, this display panel comprises a plurality of pixels that are arranged in matrix, this method comprises:
In one first moment, one first picture is shown in the pixel of even column, and one second picture is shown in the pixel of odd column; And
In be connected in this first constantly one second constantly, this first picture is shown in the pixel of odd column, and this second picture is shown in the pixel of even column,
Wherein, this first picture and this second picture wherein one be black picture.
2. the driving method of display panel according to claim 1 is characterized in that, each pixel comprises a liquid crystal capacitance, a first film transistor and one second thin film transistor (TFT), wherein:
This first film transistor is by the control of one first sweep trace, and couples an electrode of a side of a common electrode and this liquid crystal capacitance; And
This second thin film transistor (TFT) is by the control of one second sweep trace, and couples this electrode of above-mentioned this side of one first data line and this liquid crystal capacitance.
3. the driving method of display panel according to claim 2 is characterized in that, wherein:
Control by same sweep trace with above-mentioned second thin film transistor (TFT) of a pixel of two adjacent pixels of delegation and the above-mentioned the first film transistor of another pixel.
4. the driving method of display panel according to claim 1 is characterized in that, wherein:
Make one group in twos of above-mentioned pixel, every group of pixel belongs to same row, is positioned at adjacent lines and corresponding one first sweep trace, one second sweep trace, one first data line, one second data line and one the 3rd data line, wherein, each organizes first pixel of 1 in the pixel is to be centered on by above-mentioned first sweep trace, second sweep trace, first data line and second data line, and respectively to organize second pixel of 1 in the pixel be to be centered on by above-mentioned first sweep trace, second sweep trace, second data line and the 3rd data line;
Make above-mentioned first pixel comprise a first film transistor and one first liquid crystal capacitance separately, this first film transistor is controlled by above-mentioned first sweep trace, to couple above-mentioned first data line to this first liquid crystal capacitance; And
Make above-mentioned second pixel comprise one second thin film transistor (TFT), one the 3rd thin film transistor (TFT) and one second liquid crystal capacitance separately, this second thin film transistor (TFT) by the control of above-mentioned first sweep trace coupling above-mentioned second data line to this second liquid crystal capacitance, and the 3rd thin film transistor (TFT) by above-mentioned second sweep trace control to link this first liquid crystal capacitance of this second liquid crystal capacitance first pixel extremely on the same group.
5. the driving method of display panel according to claim 4 is characterized in that, wherein:
Control by same sweep trace with above-mentioned the 3rd thin film transistor (TFT) of a pixel of two adjacent above-mentioned second pixels of delegation and above-mentioned second thin film transistor (TFT) of another pixel.
6. according to the driving method of claim 3 or 5 described display panels, it is characterized in that, wherein:
Above-mentioned first scans the sweep trace of odd column constantly in regular turn.
7. the driving method of a display panel, this display panel comprises a plurality of pixels that are arranged in matrix, this method comprises:
In one first moment, one first picture is shown in the pixel of odd-numbered line even column and even number line odd column, and one second picture is shown in the pixel of odd-numbered line odd column and even number line even column; And
In be connected in this first constantly one second constantly, this first picture is shown in the pixel of odd-numbered line odd column and even number line even column, and this second picture is shown in the pixel of odd-numbered line even column and even number line odd column,
Wherein, this first picture and this second picture wherein one be black picture.
8. the driving method of display panel according to claim 7 is characterized in that, wherein:
Make one group in twos of above-mentioned pixel, every group of pixel belongs to same row, is positioned at adjacent lines and corresponding one first sweep trace, one second sweep trace, one first data line, one second data line and one the 3rd data line, wherein, each organizes first pixel of 1 in the pixel is to be centered on by above-mentioned first sweep trace, second sweep trace, first data line and second data line, and respectively to organize second pixel of 1 in the pixel be to be centered on by above-mentioned first sweep trace, second sweep trace, second data line and the 3rd data line;
Make above-mentioned first pixel comprise a first film transistor, one second thin film transistor (TFT) and one first liquid crystal capacitance separately, this the first film transistor is by the control of above-mentioned first sweep trace and couple an electrode of the Shu side of above-mentioned first data line and this first liquid crystal capacitance, and this electrode of above-mentioned this side of a common electrode and this first liquid crystal capacitance controlled and coupled by this second thin film transistor (TFT) by above-mentioned second sweep trace; And
Make above-mentioned second pixel comprise one the 3rd thin film transistor (TFT), one the 4th thin film transistor (TFT) and one second liquid crystal capacitance separately, the 3rd thin film transistor (TFT) is by the control of above-mentioned second sweep trace and couple an electrode of the Shu side of above-mentioned second data line and this second liquid crystal capacitance, and this common electrode this electrode to above-mentioned this side of this second liquid crystal capacitance is controlled and coupled to the 4th thin film transistor (TFT) by above-mentioned first sweep trace.
9. the driving method of display panel according to claim 8 is characterized in that, wherein:
Scan the sweep trace of odd column in regular turn in above-mentioned first moment; And
Scan the sweep trace of even column in regular turn in above-mentioned second moment.
10. the driving method of display panel according to claim 8 is characterized in that, wherein:
Scan the sweep trace of even column in regular turn in above-mentioned first moment; And
Scan the sweep trace of odd column in regular turn in above-mentioned second moment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100814364A CN102207645A (en) | 2006-08-30 | 2006-08-30 | Method and system for driving liquid crystal display panel |
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| CN2011100814364A CN102207645A (en) | 2006-08-30 | 2006-08-30 | Method and system for driving liquid crystal display panel |
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| CN2006101285511A Division CN101135821B (en) | 2006-08-30 | 2006-08-30 | Drive method and system of liquid crystal display board |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752617A (en) * | 2012-07-09 | 2012-10-24 | 京东方科技集团股份有限公司 | 3D (Three-dimensional) display method and display device |
| CN102982741A (en) * | 2012-12-10 | 2013-03-20 | 京东方科技集团股份有限公司 | Array substrate, and 3D display device and drive method thereof |
| WO2013060033A1 (en) * | 2011-10-25 | 2013-05-02 | 深圳市华星光电技术有限公司 | Liquid crystal display device and drive method thereof |
| CN104062790A (en) * | 2014-06-09 | 2014-09-24 | 深圳市华星光电技术有限公司 | Display device and driving method thereof |
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2006
- 2006-08-30 CN CN2011100814364A patent/CN102207645A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013060033A1 (en) * | 2011-10-25 | 2013-05-02 | 深圳市华星光电技术有限公司 | Liquid crystal display device and drive method thereof |
| CN102752617A (en) * | 2012-07-09 | 2012-10-24 | 京东方科技集团股份有限公司 | 3D (Three-dimensional) display method and display device |
| US9894349B2 (en) | 2012-07-09 | 2018-02-13 | Boe Technology Group Co., Ltd. | 3D display method for displaying 3D images and display device |
| CN102982741A (en) * | 2012-12-10 | 2013-03-20 | 京东方科技集团股份有限公司 | Array substrate, and 3D display device and drive method thereof |
| CN104062790A (en) * | 2014-06-09 | 2014-09-24 | 深圳市华星光电技术有限公司 | Display device and driving method thereof |
| WO2015188390A1 (en) * | 2014-06-09 | 2015-12-17 | 深圳市华星光电技术有限公司 | Display device and driving method therefor |
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Application publication date: 20111005 |