CN101135821B - Drive method and system of liquid crystal display board - Google Patents
Drive method and system of liquid crystal display board Download PDFInfo
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- CN101135821B CN101135821B CN2006101285511A CN200610128551A CN101135821B CN 101135821 B CN101135821 B CN 101135821B CN 2006101285511 A CN2006101285511 A CN 2006101285511A CN 200610128551 A CN200610128551 A CN 200610128551A CN 101135821 B CN101135821 B CN 101135821B
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Abstract
The system comprises multi pixels; each pixel comprises a liquid crystal capacitor, a first film transistor, a second film transistor; the grid of the first film transistor is connected to the first scan line; the drain electrode of the film transistor is connected to the common electrode; the source of the first transistor is connected to the one electrode of the liquid crystal capacitor; the other electrode of the liquid crystal capacitor is connected to the common electrode; the drain and grid of the second film transistor are respectively connected to the second data line and the scan line; the source of the second film transistor is connected to one electrode of the liquid crystal capacitor.
Description
Technical field
The invention relates to a kind of driving method and system of display panels, refer to a kind of especially in the driving method and the system that are not improving the display panels of the black picture of insertion under picture transfer rate (frame rate) condition.
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 existing technology can be inserted black picture for addressing the above problem in each picture (frame).When black picture produced, the vision of human eye had the characteristic of dynamic tracing, can when deceiving picture, with moving of object one lattice one lattice, couple together automatically.
See also Fig. 1, this is that existing display panels inserts the driving method of black picture and the synoptic diagram of system.Most 100 formations of pixel (pixel) as shown in Figure 1, that display panels 200 is arranged by matrix-style, 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, the grid voltage of scanner driver 204 actuating thin film transistor (TFT)s 101 is 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 voltages (that is black picture).
Yet; Utilize the mode of black plug picture in the present existing technology; Since need in same picture, all sweep traces to be activated twice, need the picture transfer rate (frame rate) of twice to change picture speed, that is sweep frequency needs to increase to 120Hz by 60Hz.That is to say that a part of time is used for giving pixel correct display voltage, a part of in addition time then is coupled into black rank voltages (that is black picture) with pixel.But at large-sized LCD TV or LCD; Because the speed that signal transmits can need the long time along with the panel size increase; 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 picture quality.
Summary of the invention
Fundamental purpose of the present invention is driving method and the system that a kind of display panels is provided; In this liquid crystal capacitance with staggered this liquid crystal capacitance that is presented at this odd column of picture and this even column; And will deceive in this liquid crystal capacitance of picture this liquid crystal capacitance of staggered insertion and this even column; Reach and to promote picture transfer rate (frame rate), can reach good picture display quality and picture and change speed.
Another object of the present invention is driving method and the system that a kind of display panels is provided; First constantly; Utilize the display voltage of each liquid crystal capacitance of odd column to be coupled into black rank voltages (that is black picture); And each liquid crystal capacitance of this even column has first display voltage of this first picture; In second moment, utilize the display voltage of each liquid crystal capacitance of even column to be coupled into black rank voltages (that is black picture), and each liquid crystal capacitance of this odd column have first display voltage of this first picture again; In this liquid crystal capacitance with staggered this liquid crystal capacitance that is presented at this odd column of picture and this even column, and will deceive in this liquid crystal capacitance of picture this liquid crystal capacitance of staggered insertion and this even column.
Another purpose of the present invention is driving method and the system that a kind of display panels is provided; First constantly; Utilize the display voltage of each liquid crystal capacitance of even column to be coupled into black rank voltages (that is black picture); And each liquid crystal capacitance of this odd column has first display voltage of this first picture; In second moment, utilize the display voltage of each liquid crystal capacitance of odd column to be coupled into black rank voltages (that is black picture), and each liquid crystal capacitance of this even column have first display voltage of this first picture again; In this liquid crystal capacitance with staggered this liquid crystal capacitance that is presented at this odd column of picture and this even column, and will deceive in this liquid crystal capacitance of picture this liquid crystal capacitance of staggered insertion and this even column.
A purpose more of the present invention is driving method and the system that a kind of display panels is provided; During first moment; Activate the transistorized control end voltage of each the first film of even number line odd column through odd number bar sweep trace, driving each the first film transistor, and the control end voltage that activates each second thin film transistor (TFT) of odd-numbered line even column; To drive each second thin film transistor (TFT); The display voltage of each liquid crystal capacitance of each liquid crystal capacitance of even number line odd column and odd-numbered line even column is coupled into black rank voltage, connects each the first film transistor and each second thin film transistor (TFT) of even number line even column of the odd-numbered line odd column of odd number bar sweep trace simultaneously, through odd number bar sweep trace; The control end voltage of the transistorized control end voltage of the first film of actuating odd-numbered line odd column and second thin film transistor (TFT) of even number line even column; With the first film transistor that drives the odd-numbered line odd column and second thin film transistor (TFT) of even number line even column,, a display voltage of a picture is write each liquid crystal capacitance of odd-numbered line odd column and each liquid crystal capacitance of even number line even column by each data line; And when second moment; Through even number bar sweep trace, activate the control end voltage of each second thin film transistor (TFT) of odd-numbered line odd column, to drive each second thin film transistor (TFT); And the transistorized control end voltage of each the first film that activates the even number line even column; Driving each the first film transistor, the display voltage of each liquid crystal capacitance of each liquid crystal capacitance of odd-numbered line odd column and even number line even column is coupled into black rank voltage, through even number bar sweep trace; Activate each the first film transistor of odd-numbered line even column and the respectively control end voltage of second thin film transistor (TFT) of even number line odd column; With each the first film transistor of driving the odd-numbered line even column and each second thin film transistor (TFT) of even number line odd column, by each data line, with the display voltage of this picture write the odd-numbered line even column each liquid crystal capacitance and even number line odd column each liquid crystal capacitance.
An also purpose of the present invention is driving method and the system that a kind of display panels is provided; When first moment; Activate the transistorized control end voltage of each the first film of even number line even column through even number bar sweep trace; To drive each the first film transistor; And the control end voltage that activates each second thin film transistor (TFT) of odd-numbered line odd column, driving each second thin film transistor (TFT), the display voltage of each liquid crystal capacitance of each liquid crystal capacitance of odd-numbered line odd column and even number line even column is coupled into black rank voltage; Each second thin film transistor (TFT) of each the first film transistor and even number line odd column that connects the odd-numbered line even column of even number bar sweep trace simultaneously; Through even number bar sweep trace, the control end voltage of the transistorized control end voltage of the first film of actuating odd-numbered line even column and second thin film transistor (TFT) of even number line odd column is with the first film transistor of driving odd-numbered line even column and second thin film transistor (TFT) of even number line odd column; By each data line, a display voltage of a picture is write each liquid crystal capacitance of odd-numbered line even column and each liquid crystal capacitance of even number line odd column; And second constantly the time; Through odd number bar sweep trace; Activate the transistorized control end voltage of each the first film of even number line odd column; With each the first film transistor, and the control end voltage that activates each second thin film transistor (TFT) of odd-numbered line even column, to drive each second thin film transistor (TFT); The display voltage of each liquid crystal capacitance of each liquid crystal capacitance of odd-numbered line even column and even number line odd column is coupled into black rank voltage; Through odd number bar sweep trace, activate each the first film transistor of odd-numbered line odd column and the respectively control end voltage of second thin film transistor (TFT) of even number line even column, with each the first film transistor of driving odd-numbered line odd column and each second thin film transistor (TFT) of even number line even column; By each data line, with the display voltage of this picture write the odd-numbered line odd column each liquid crystal capacitance and even number line even column each liquid crystal capacitance.
For reaching above-mentioned purpose, the present invention provides the system of a display panels, comprises:
A most pixel constitute, and are characterized in that each pixel comprises:
One liquid crystal capacitance;
One the first film transistor;
One second thin film transistor (TFT); Wherein the transistorized control end of this first film connects one first sweep trace; Transistorized first end of this first film is connected to one first common electrode; Transistorized second end of this first film is connected to the electrode of this liquid crystal capacitance one side; The electrode of this liquid crystal capacitance opposite side is connected to one second common electrode, and first end of this second thin film transistor (TFT) is electrically connected with this sweep trace with one second data line respectively with control end, and second end of this second thin film transistor (TFT) is connected to the electrode of this liquid crystal capacitance one side.
Description of drawings
Characteristic of the present invention, performance are further specified by following embodiment and accompanying drawing thereof.
Fig. 1 is that existing display panels inserts the driving method of black picture and the synoptic diagram of system.
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 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.
The main element symbol description is following among the figure;
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
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 with reference to Fig. 2, this is that the display panels of the present invention's first preferred embodiment inserts the driving method of black picture and the synoptic diagram of system.As shown in Figure 2; Display panels 400 is most 300 formations of pixel (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.
The grid of this first film transistor 301 connect sweep trace G1, G2 ..., 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; First constantly the time, this scanner driver 404 through odd number bar sweep trace G1, G3, G5 ..., activate the grid voltage of each the first film transistor 301; To drive each the first film transistor 301, then two terminal potentials of each liquid crystal capacitance C1 are this first common electrode V
DCCurrent potential and the current potential of this second common electrode Vcom.(Normally Black, NB) display panels is with this first common electrode V for normally deceiving
DCThe current potential furnishing have identical current potential with this second common electrode Vcom.If for normally (Normally White, NW) display panels is with this first common electrode V in vain
DCCurrent potential furnishing and this second common electrode Vcom have current potential inequality.Promptly be that the display voltage with each liquid crystal capacitance C1 of odd column is coupled into black rank voltages (that is black picture) this moment.Connect simultaneously odd number bar sweep trace G3, G5 ... Each second thin film transistor (TFT) 302 of even column; This scanner driver 404 through odd number bar sweep trace G3, G5 ... Activate the grid voltage of each second thin film transistor (TFT) 302; Driving each second thin film transistor (TFT) 302, by this data line D1, D2, D3 ..., Dg, first display voltage of this first picture is write each liquid crystal capacitance C1 of even column.Therefore the display voltage of each liquid crystal capacitance C1 of odd column is coupled into black rank voltages (that is black picture), and each liquid crystal capacitance C1 of this even column has first display voltage of this first picture.
Then; First display voltage at identical first picture; Second constantly the time, this scanner driver 404 through even number bar sweep trace G2, G4, G6 ..., activate the grid voltage of each the first film transistor 301; To drive each the first film transistor 301, then two terminal potentials of each liquid crystal capacitance C1 are this first common electrode V
DCCurrent potential and the current potential of this second common electrode Vcom.(Normally Black, NB) display panels is with this first common electrode V for normally deceiving
DCThe current potential furnishing have identical current potential with this second common electrode Vcom.If for normally (Normally White, NW) display panels is with this first common electrode V in vain
DCCurrent potential furnishing and this second common electrode Vcom have current potential inequality.Promptly be that the display voltage with each liquid crystal capacitance C1 of even column is coupled into black rank voltages (that is black picture) this moment.Connect simultaneously even number bar sweep trace G2, G4 ... Each second thin film transistor (TFT) 302 of odd column pixel; This scanner driver 404 through even number bar sweep trace G2, G4 ... Activate the grid voltage of each second thin film transistor (TFT) 302; Driving each second thin film transistor (TFT) 302, by this data line D1, D2, D3 ..., Dg, first display voltage of this first picture is write each liquid crystal capacitance C1 of odd column pixel.Therefore the display voltage of each liquid crystal capacitance C1 of this even column pixel is coupled into black rank voltages (that is black picture), and each 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 through 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
DCCurrent potential and the current potential of this second common electrode Vcom.(Normally Black, NB) display panels is with this first common electrode V for normally deceiving
DCThe current potential furnishing have identical current potential with this second common electrode Vcom.If for normally (Normally White, NW) display panels is with this first common electrode V in vain
DCCurrent potential furnishing and this second common electrode Vcom have current potential inequality.Promptly be that the display voltage with this liquid crystal capacitance C1 of odd column pixel is coupled into black rank voltages (that is 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 through odd number bar sweep trace G3, G5 ... Activate the grid voltage of this second thin film transistor (TFT) 302; Driving 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 voltages (that is 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; The 4th constantly the time, this scanner driver 404 through 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
DCCurrent potential and the current potential of this second common electrode Vcom.(Normally Black, NB) display panels is with this first common electrode V for normally deceiving
DCThe current potential furnishing have identical current potential with this second common electrode Vcom.If for normally (Normally White, NW) display panels is with this first common electrode V in vain
DCCurrent potential furnishing and this second common electrode Vcom have current potential inequality.Promptly be that the display voltage with this liquid crystal capacitance C1 of even column pixel is coupled into black rank voltages (that is 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 through even number bar sweep trace G2, G4 ... Activate the grid voltage of this second thin film transistor (TFT) 302; Driving 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 voltages (that is 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 by the present invention 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 capacitance 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 with reference to Fig. 3, this is the driving method and the system of the black picture of display panels insertion of the present invention's second preferred embodiment.As shown in Figure 3; Display panels 600 is most 500 formations of pixel (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.
The grid of this first film transistor 501 of odd-numbered line pixel connect sweep trace G1, G2 ..., 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 ...
The grid of this second thin film transistor (TFT) 502 of odd-numbered line pixel connect sweep trace G2, G3 ..., 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
The grid of this first film transistor 501 of even number line pixel connect sweep trace G2, G3 ..., 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 ...
The grid of this second thin film transistor (TFT) 502 of even number line pixel connect sweep trace G1, G2 ..., 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; First constantly the time, this scanner driver 604 through odd number bar sweep trace G1, G3, G5 ..., the grid voltage of each second thin film transistor (TFT) 502 of actuating even number line odd column pixel; To drive each second thin film transistor (TFT) 502; And the grid voltage that activates each the first film transistor 501 of odd-numbered line even column pixel, to drive each the first film transistor 501, then two terminal potentials of each liquid crystal capacitance C1 of two terminal potentials of each liquid crystal capacitance C1 of even number line odd column pixel and odd-numbered line even column pixel are this first common electrode V
DCCurrent potential and the current potential of this second common electrode Vcom.(Normally Black, NB) display panels is with this first common electrode V for normally deceiving
DCThe current potential furnishing have identical current potential with this second common electrode Vcom.If for normally (Normally White, NW) display panels is with this first common electrode V in vain
DCCurrent potential furnishing and this second common electrode Vcom have current potential inequality.Promptly be that the display voltage with each liquid crystal capacitance C1 of two terminal potentials of each liquid crystal capacitance C1 of even number line odd column pixel and odd-numbered line even column pixel is coupled into black rank voltages (that is black picture) this moment.Connect simultaneously odd number bar sweep trace G1, G3, G5 ... Each second thin film transistor (TFT) 502 of each the first film transistor 501 and even number line even column pixel of odd-numbered line odd column pixel; This scanner driver 604 through 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, first display voltage of this first picture is write each liquid crystal capacitance C1 of odd-numbered line odd column pixel and each liquid crystal capacitance C1 of even number line even column pixel.Therefore the display voltage of each liquid crystal capacitance C1 of odd-numbered line even column pixel and even number line odd column pixel is coupled into black rank voltages (that is black picture), and each 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; Second constantly the time, this scanner driver 604 through even number bar sweep trace G2, G4, G6 ..., the grid voltage of each second thin film transistor (TFT) 502 of actuating odd-numbered line odd column pixel; To drive each second thin film transistor (TFT) 502; And the grid voltage that activates each second thin film transistor (TFT) 502 of even number line even column pixel, to drive each second thin film transistor (TFT) 502, then two terminal potentials of each liquid crystal capacitance C1 of two terminal potentials of each liquid crystal capacitance C1 of odd-numbered line odd column pixel and even number line even column pixel are this first common electrode V
DCCurrent potential and the current potential of this second common electrode Vcom.(Normally Black, NB) display panels is with this first common electrode V for normally deceiving
DCThe current potential furnishing have identical current potential with this second common electrode Vcom.If for normally (Normally White, NW) display panels is with this first common electrode V in vain
DCCurrent potential furnishing and this second common electrode Vcom have current potential inequality.Promptly be that the display voltage with each liquid crystal capacitance C1 of two terminal potentials of each liquid crystal capacitance C1 of odd-numbered line odd column pixel and even number line even column pixel is coupled into black rank voltages (that is black picture) this moment.Connect simultaneously even number bar sweep trace G2, G4 ... Each the first film transistor 501 and each the first film transistor 501 of even number line odd column pixel of odd-numbered line even column pixel; This scanner driver 604 through even number bar sweep trace G2, G4 ... The grid voltage of each the first film transistor 501 of actuating odd-numbered line even column pixel and each the first film transistor 501 of even number line odd column pixel; With each the first film transistor 501 of driving odd-numbered line even column pixel and each 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 each liquid crystal capacitance C1 and each liquid crystal capacitance C1 of even number line odd column pixel.Therefore the display voltage of each liquid crystal capacitance C1 of each liquid crystal capacitance C1 of odd-numbered line odd column pixel and even number line even column pixel is coupled into black rank voltages (that is black picture), and each liquid crystal capacitance C1 of each 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 through odd number bar sweep trace G1, G3, G5 ... Activate the grid voltage of each second thin film transistor (TFT) 502 of even number line odd column, with each second thin film transistor (TFT) 502 of driving, and the grid voltage that activates each second thin film transistor (TFT) 502 of odd-numbered line even column pixel; To drive each second thin film transistor (TFT) 502, then two terminal potentials of each liquid crystal capacitance C1 of two terminal potentials of each liquid crystal capacitance C1 of even number line odd column pixel and odd-numbered line even column pixel are this first common electrode V
DCCurrent potential and the current potential of this second common electrode Vcom.(Normally Black, NB) display panels is with this first common electrode V for normally deceiving
DCThe current potential furnishing have identical current potential with this second common electrode Vcom.If for normally (Normally White, NW) display panels is with this first common electrode V in vain
DCCurrent potential furnishing and this second common electrode Vcom have current potential inequality.Promptly be that the display voltage with this liquid crystal capacitance C1 of odd column is coupled into black rank voltages (that is black picture) this moment.Connect simultaneously odd number bar sweep trace G1, G3, G5 ... Each the first film transistor 501 and each the first film transistor 501 of even number line even column pixel of odd-numbered line odd column pixel; This scanner driver 604 through 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, second display voltage of this second picture is write each liquid crystal capacitance C1 of odd-numbered line odd column pixel and each liquid crystal capacitance C1 of even number line even column pixel.Therefore the display voltage of each liquid crystal capacitance C1 of odd-numbered line even column pixel and even number line odd column pixel is coupled into black rank voltages (that is black picture), and each 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; The 4th constantly the time, this scanner driver 604 through even number bar sweep trace G2, G4, G6 ..., the grid voltage of each second thin film transistor (TFT) 502 of actuating odd-numbered line odd column pixel; To drive each second thin film transistor (TFT) 502; And the grid voltage that activates each second thin film transistor (TFT) 502 of even number line even column pixel, to drive each second thin film transistor (TFT) 502, then two terminal potentials of each liquid crystal capacitance C1 of two terminal potentials of each liquid crystal capacitance C1 of odd-numbered line odd column pixel and even number line even column pixel are this first common electrode V
DCCurrent potential and the current potential of this second common electrode Vcom.(Normally Black, NB) display panels is with this first common electrode V for normally deceiving
DCThe current potential furnishing have identical current potential with this second common electrode Vcom.If for normally (Normally White, NW) display panels is with this first common electrode V in vain
DCCurrent potential furnishing and this second common electrode Vcom have current potential inequality.Promptly be that the display voltage with each liquid crystal capacitance C1 of two terminal potentials of each liquid crystal capacitance C1 of odd-numbered line odd column pixel and even number line even column pixel is coupled into black rank voltages (that is black picture) this moment.Connect simultaneously even number bar sweep trace G2, G4 ... Each the first film transistor 501 and each the first film transistor 501 of even number line odd column pixel of odd-numbered line even column pixel; This scanner driver 604 through even number bar sweep trace G2, G4 ... The grid voltage of each the first film transistor 501 of actuating odd-numbered line even column pixel and each the first film transistor 501 of even number line odd column pixel; With each the first film transistor 501 of driving odd-numbered line even column pixel and each the first film transistor 501 of even number line odd column pixel; By this data line D1, D2, D3 ..., Dg, second display voltage of this second picture is write each liquid crystal capacitance C1 of odd-numbered line even column pixel and each liquid crystal capacitance C1 of even number line odd column pixel.Therefore the display voltage of each liquid crystal capacitance C1 of each liquid crystal capacitance C1 of odd-numbered line odd column pixel and even number line even column pixel is coupled into black rank voltages (that is black picture), and each liquid crystal capacitance C1 of each 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 by the invention of this case at same picture; In can each liquid crystal capacitance C1 with staggered each the 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 each liquid crystal capacitance C1 of staggered each the 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 with reference to Fig. 4, this is the driving method and the system schematic of the black picture of display panels insertion of the present invention's the 3rd preferred embodiment.As shown in Figure 4, display panels 800 is most 700 formations of pixel (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.
The grid of this first film transistor 701 connect sweep trace G1, G2 ..., 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 ...
The grid of this second thin film transistor (TFT) 702 of even number line pixel connect sweep trace G2, G3 ..., 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; In first display voltage of first picture, first constantly the time, this scanner driver 804 through odd number bar sweep trace G1, G3, G5 ... Activate the grid voltage of each the first film transistor 701 of odd column pixel; Driving each the first film transistor 701, and the grid voltage that activates each second thin film transistor (TFT) 702 of even number line even column pixel, to drive each second thin film transistor (TFT) 702; Then because the polarity of even number line even column pixel and odd-numbered line even column pixel is opposite; Therefore when each second thin film transistor (TFT), 702 conducting of even number line even column pixel, make the current potential neutralization of even number line even column pixel with odd-numbered line even column pixel of neighbor, cause the two ends potential difference (PD) of each liquid crystal capacitance C1 of even column pixel approaching zero.(the even column pixel is shown as black picture for NormallyBlack, NB) display panels for normally deceiving.
Connect simultaneously odd number bar sweep trace G1, G3, G5 ... Each the first film transistor 701 of odd column pixel; This scanner driver 804 through odd number bar sweep trace G1, G3, G5 ... Activate the grid voltage of the first film transistor 701 of odd column pixel; Driving 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 each liquid crystal capacitance C1 of odd column pixel.Therefore the display voltage of each liquid crystal capacitance C1 of even column pixel is coupled into black rank voltages (that is black picture), and each liquid crystal capacitance C1 of odd column pixel has first display voltage of this first picture.
Then; In first display voltage of identical first picture, second constantly the time, this scanner driver 804 through even number bar sweep trace G2, G4, G6 ... Activate the grid voltage of each the first film transistor 701 of even column pixel; Driving each the first film transistor 701, and the grid voltage that activates each second thin film transistor (TFT) 702 of even number line odd column pixel, to drive each second thin film transistor (TFT) 702; Then because the polarity of even number line odd column pixel and odd-numbered line odd column pixel is opposite; Therefore when each second thin film transistor (TFT), 702 conducting of even number line odd column pixel, make the current potential neutralization of even number line odd column pixel with odd-numbered line odd column pixel of neighbor, cause the two ends potential difference (PD) of each liquid crystal capacitance C1 of odd column pixel approaching zero.(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 ... Each the first film transistor 701 of even column pixel; This scanner driver 804 through even number bar sweep trace G2, G4, G6 ... Activate the grid voltage of the first film transistor 701 of even column pixel; Driving 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 each liquid crystal capacitance C1 of even column pixel.Therefore the display voltage of each liquid crystal capacitance C1 of odd column pixel is coupled into black rank voltages (that is black picture), and each 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 through odd number bar sweep trace G1, G3, G5 ..., the grid voltage of each the first film transistor 701 of actuating odd column pixel is to drive each the first film transistor 701; And the grid voltage that activates each second thin film transistor (TFT) 702 of even number line even column pixel; To drive each 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 respectively 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 each 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 ... Each the first film transistor 701 of odd column pixel; This scanner driver 804 through odd number bar sweep trace G1, G3, G5 ... Activate the grid voltage of the first film transistor 701 of odd column pixel; Driving 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 each liquid crystal capacitance C1 of odd column pixel.Therefore the display voltage of each liquid crystal capacitance C1 of even column pixel is coupled into black rank voltages (that is black picture), and each liquid crystal capacitance C1 of odd column pixel has second display voltage of this second picture.
Then; In second display voltage of identical second picture, the 4th constantly the time, this scanner driver 804 through even number bar sweep trace G2, G4, G6 ... Activate the grid voltage of each the first film transistor 701 of even column pixel; Driving each the first film transistor 701, and the grid voltage that activates each second thin film transistor (TFT) 702 of even number line odd column pixel, to drive each second thin film transistor (TFT) 702; Then because the polarity of even number line odd column pixel and odd-numbered line odd column pixel is opposite; Therefore when each second thin film transistor (TFT), 702 conducting of even number line odd column pixel, make the current potential neutralization of even number line odd column pixel with odd-numbered line odd column pixel of neighbor, cause the two ends potential difference (PD) of each liquid crystal capacitance C1 of odd column pixel approaching zero.(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 ... Each the first film transistor 701 of even column pixel; This scanner driver 804 through even number bar sweep trace G2, G4, G6 ... Activate the grid voltage of the first film transistor 701 of even column pixel; Driving 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 each liquid crystal capacitance C1 of even column pixel.Therefore the display voltage of each liquid crystal capacitance C1 of odd column pixel is coupled into black rank voltages (that is black picture), and each 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 by the invention of this case at same picture; Can picture be interlocked and be presented among each liquid crystal capacitance C1 of odd column pixel and even column pixel; Among each 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.
In sum; Though the present invention discloses as above with a preferred embodiment; Right its is not that the technician in any present technique field is not breaking away from the spirit and scope of the present invention in order to qualification the present invention; When can doing various changes and retouching, so protection scope of the present invention is as the criterion with what claims scope defined.
Claims (5)
1. the driving method of a display panels, this display panels comprise most bar sweep traces, plurality of data lines and most pixels and constitute; Each pixel comprises a liquid crystal capacitance, a first film transistor, one second thin film transistor (TFT); The transistorized control end of described the first film connects even number bar sweep trace; Transistorized first end of this first film is connected to one first common electrode; Transistorized second end of this first film is connected to the electrode of this liquid crystal capacitance one side, and the electrode of this liquid crystal capacitance opposite side is connected to one second common electrode; First end of described second thin film transistor (TFT) and control end are connected with odd number bar sweep trace with wherein a data line respectively, and second end of this second thin film transistor (TFT) is connected to the electrode of said liquid crystal capacitance one side; It is characterized in that described driving method comprises the following step:
In one first display voltage of one first picture, first constantly the time; Activate the transistorized control end voltage of each the first film through even number bar sweep trace, driving each the first film transistor, the display voltage of each liquid crystal capacitance of even column is coupled into black rank voltage; And each second thin film transistor (TFT) that connects even number bar sweep trace odd column simultaneously; Through even number bar sweep trace, activate the control end voltage of each second thin film transistor (TFT), to drive each second thin film transistor (TFT); By each described data line, first display voltage of described first picture is write in regular turn each liquid crystal capacitance of odd column; And
Constantly the time,, activate the transistorized control end voltage of each the first film in said first display voltage of said first picture, second through odd number bar sweep trace; To drive each the first film transistor; The display voltage of each liquid crystal capacitance of odd column is coupled into black rank voltage, and connects each second thin film transistor (TFT) of the even column of odd number bar sweep trace, through odd number bar sweep trace; Activate the control end voltage of each second thin film transistor (TFT); To drive each second thin film transistor (TFT),, first display voltage of described first picture is write in regular turn each liquid crystal capacitance of even column by described data line.
2. the system of a display panels comprises:
A most pixel constitute, and it is characterized in that each pixel comprises:
One liquid crystal capacitance;
One the first film transistor; And
One second thin film transistor (TFT);
Wherein the transistorized control end of said the first film of odd-numbered line pixel connects n bar sweep trace respectively; Transistorized first end of the said the first film of odd-numbered line pixel is connected to odd number bar data line respectively; Transistorized second end of the said the first film of odd-numbered line pixel is connected to the electrode of said liquid crystal capacitance one side; The electrode of this liquid crystal capacitance opposite side is connected to one second common electrode; First end of said second thin film transistor (TFT) of odd-numbered line pixel is electrically connected one first common electrode; The control end of said second thin film transistor (TFT) of odd-numbered line pixel is electrically connected n+1 bar sweep trace respectively; Second end of said second thin film transistor (TFT) of odd-numbered line pixel is connected to the electrode of said liquid crystal capacitance one side, and the transistorized control end of said the first film of even number line pixel connects n+1 bar sweep trace respectively, and transistorized first end of the said the first film of even number line pixel is connected to even number bar data line; Transistorized second end of the said the first film of even number line pixel is connected to the electrode of said liquid crystal capacitance one side; The electrode of this liquid crystal capacitance opposite side is connected to second common electrode, and the control end of said second thin film transistor (TFT) of even number line pixel connects n bar sweep trace respectively, and first end of said second thin film transistor (TFT) of even number line pixel is electrically connected first common electrode; Second end of said second thin film transistor (TFT) of even number line is connected to the electrode of said liquid crystal capacitance one side, and wherein n is an arbitrary integer.
3. the driving method of a display panels; This display panels comprises most bar sweep traces, plurality of data lines and most pixels and constitutes; Wherein each pixel comprises a liquid crystal capacitance, a first film transistor, one second thin film transistor (TFT); Wherein, The transistorized control end of the first film of odd-numbered line pixel, first end, second end connect the electrode and one first common electrode of even number bar sweep trace, this liquid crystal capacitance one side respectively; The control end of second thin film transistor (TFT) of odd-numbered line pixel, first end, second end connect the electrode of odd number bar sweep trace, odd number bar data line and this liquid crystal capacitance one side respectively, and the electrode of this liquid crystal capacitance opposite side is connected to one second common electrode; The transistorized control end of this first film of even number line pixel, first end, second end connect the electrode of even number bar sweep trace, even number bar data line and this liquid crystal capacitance one side respectively, and the control end of this second thin film transistor (TFT) of even number line pixel, first end, second end connect the electrode of odd number bar sweep trace, this first common electrode and this liquid crystal capacitance one side respectively; The electrode of all these liquid crystal capacitance opposite sides is connected to one second common electrode; It is characterized in that said driving method comprises the following step:
In one first display voltage of one first picture, first constantly the time; Activate the control end voltage of each second thin film transistor (TFT) of even number line odd column pixel through odd number bar sweep trace; To drive each second thin film transistor (TFT); And the control end voltage that activates each second thin film transistor (TFT) of odd-numbered line even column pixel; To drive each second thin film transistor (TFT); The display voltage of each liquid crystal capacitance of each liquid crystal capacitance of even number line odd column pixel and odd-numbered line even column pixel is coupled into black rank voltage, connects each the first film transistor and each the first film transistor of even number line even column pixel of the odd-numbered line odd column pixel of odd number bar sweep trace simultaneously, through odd number bar sweep trace; Activate the transistorized control end voltage of the first film of odd-numbered line odd column pixel and the transistorized control end voltage of the first film of even number line even column pixel; With the first film transistor that drives odd-numbered line odd column pixel and the first film transistor of even number line even column pixel,, first display voltage of said first picture is write each liquid crystal capacitance of odd-numbered line odd column pixel and each liquid crystal capacitance of even number line even column pixel by each data line; And
When said first display voltage of described first picture, second moment; Through even number bar sweep trace; Activate the control end voltage of each second thin film transistor (TFT) of odd-numbered line odd column pixel; To drive each second thin film transistor (TFT); And the control end voltage that activates each second thin film transistor (TFT) of even number line even column pixel; Driving each second thin film transistor (TFT), the display voltage of each liquid crystal capacitance of each liquid crystal capacitance of odd-numbered line odd column pixel and even number line even column pixel is coupled into black rank voltage, through even number bar sweep trace; Activate each the first film transistor of odd-numbered line even column pixel and the transistorized control end voltage of each the first film of even number line odd column pixel; With each the first film transistor of driving odd-numbered line even column pixel and each the first film transistor of even number line odd column pixel,, first display voltage of described first picture is write each liquid crystal capacitance of odd-numbered line even column pixel and each liquid crystal capacitance of even number line odd column pixel by each described data line.
4. the driving method of a display panels; This display panels comprises most bar sweep traces, plurality of data lines and most pixels and constitutes; Wherein each pixel comprises a liquid crystal capacitance, a first film transistor, one second thin film transistor (TFT); Wherein, The transistorized control end of the first film of odd-numbered line pixel, first end, second end connect the electrode and one first common electrode of even number bar sweep trace, this liquid crystal capacitance one side respectively; The control end of second thin film transistor (TFT) of odd-numbered line pixel, first end, second end connect the electrode of odd number bar sweep trace, odd number bar data line and this liquid crystal capacitance one side respectively, and the electrode of this liquid crystal capacitance opposite side is connected to one second common electrode; The transistorized control end of this first film of even number line pixel, first end, second end connect the electrode of even number bar sweep trace, even number bar data line and this liquid crystal capacitance one side respectively, and the control end of this second thin film transistor (TFT) of even number line pixel, first end, second end connect the electrode of odd number bar sweep trace, this first common electrode and this liquid crystal capacitance one side respectively; The electrode of all these liquid crystal capacitance opposite sides is connected to one second common electrode; It is characterized in that described driving method comprises the following step:
First constantly; One first display voltage of one first picture; Activate the control end voltage of each second thin film transistor (TFT) of even number line even column pixel through even number bar sweep trace; To drive each second thin film transistor (TFT); And the control end voltage that activates each second thin film transistor (TFT) of odd-numbered line odd column pixel, driving each second thin film transistor (TFT), the display voltage of each liquid crystal capacitance of each liquid crystal capacitance of odd-numbered line odd column pixel and even number line even column pixel is coupled into black rank voltage; Each the first film transistor and each the first film transistor of even number line odd column pixel of connecting the odd-numbered line even column pixel of even number bar sweep trace simultaneously; Through even number bar sweep trace, activate the transistorized control end voltage of the first film of odd-numbered line even column pixel and the transistorized control end voltage of the first film of even number line odd column pixel, with the first film transistor of driving odd-numbered line even column pixel and the first film transistor of even number line odd column pixel; By each described data line, first display voltage of said first picture is write each liquid crystal capacitance of odd-numbered line even column pixel and each liquid crystal capacitance of even number line odd column pixel; And
Second constantly; Said first display voltage of said first picture is through odd number bar sweep trace; Activate the control end voltage of each second thin film transistor (TFT) of even number line odd column pixel; With each second thin film transistor (TFT) of driving, and the control end voltage that activates each second thin film transistor (TFT) of odd-numbered line even column pixel, to drive respectively second thin film transistor (TFT); The display voltage of each liquid crystal capacitance of each liquid crystal capacitance of odd-numbered line even column pixel and even number line odd column pixel is coupled into black rank voltage; Through odd number bar sweep trace, activate each the first film transistor of odd-numbered line odd column pixel and the transistorized control end voltage of each the first film of even number line even column pixel, with each the first film transistor of driving odd-numbered line odd column pixel and each the first film transistor of even number line even column pixel; By each described data line, first display voltage of said first picture is write each liquid crystal capacitance of odd-numbered line odd column pixel and each liquid crystal capacitance of even number line even column pixel.
5. the driving method of a display panels; This display panels comprises most bar sweep traces, plurality of data lines and most pixels and constitutes; Wherein each pixel comprises a liquid crystal capacitance, a first film transistor, one second thin film transistor (TFT); The transistorized control end of described the first film connects even number bar sweep trace; Transistorized first end of this first film is connected to one first common electrode, and transistorized second end of this first film is connected to the electrode of this liquid crystal capacitance one side, and the electrode of this liquid crystal capacitance opposite side is connected to one second common electrode; First end of described second thin film transistor (TFT) is connected with odd number bar sweep trace with one of them data line respectively with control end, and second end of this second thin film transistor (TFT) is connected to the electrode of said liquid crystal capacitance one side; It is characterized in that described driving method comprises the following step:
First constantly; First display voltage of first picture activates the transistorized control end voltage of each the first film of odd column pixel; To drive each the first film transistor, activate the control end voltage of each second thin film transistor (TFT) of even column pixel simultaneously, to drive each second thin film transistor (TFT); Cause the even column pixel to be shown as black picture, and first display voltage of this first picture is write each liquid crystal capacitance of odd column pixel.
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| CN102346341B (en) * | 2010-08-04 | 2014-09-10 | 北京京东方光电科技有限公司 | Array base plate, manufacturing method for array base plate, liquid crystal panel, liquid crystal display and driving method |
| CN102347327A (en) * | 2010-08-04 | 2012-02-08 | 北京京东方光电科技有限公司 | Array substrate and manufacturing method thereof, and liquid crystal display (LCD) panel |
| CN102445796B (en) * | 2011-07-22 | 2014-03-26 | 深圳市华星光电技术有限公司 | Liquid crystal display device and black frame insertion method thereof |
| CN105629609A (en) * | 2016-02-18 | 2016-06-01 | 深圳市华星光电技术有限公司 | Array substrate, liquid crystal display device and driving method of liquid crystal display device |
| CN110210421B (en) | 2019-06-05 | 2021-08-06 | 京东方科技集团股份有限公司 | Imaging backboard, driving method thereof and fingerprint identification panel |
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