CN101135821A - 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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- CN101135821A CN101135821A CNA2006101285511A CN200610128551A CN101135821A CN 101135821 A CN101135821 A CN 101135821A CN A2006101285511 A CNA2006101285511 A CN A2006101285511A CN 200610128551 A CN200610128551 A CN 200610128551A CN 101135821 A CN101135821 A CN 101135821A
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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 with moving of object one lattice one lattice, couple together automatically when deceiving picture.
See also Fig. 1, this is that existing display panels inserts the driving method of black picture and the synoptic diagram of system.As shown in Figure 1, most 100 formations of pixel (pixel) 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, 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 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, Yi Bufen time then is coupled into pixel black rank voltages (that is 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 picture quality.
Summary of the invention
Driving method and the system of fundamental purpose of the present invention for 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.
Driving method and the system of another object of the present invention for 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, again constantly second, 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 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.
Driving method and the system of another purpose of the present invention for 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, again constantly second, 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 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.
Driving method and the system of a further object of the present invention for 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 by odd 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 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, connect each the first film transistor of odd-numbered line odd column of odd number bar sweep trace and each second thin film transistor (TFT) of even number line even column simultaneously, by 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 of driving odd-numbered line odd column and second thin film transistor (TFT) of even number line even column, by each data line, one display voltage of one picture is write each liquid crystal capacitance of odd-numbered line odd column and each liquid crystal capacitance of even number line even column, and when second moment, by 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, to drive 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, by 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 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 the even number line odd column each liquid crystal capacitance.
Also driving method and the system of a purpose of the present invention for 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 by 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, 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 odd column and even number line even column is coupled into black rank voltage, connect each the first film transistor of odd-numbered line even column of even number bar sweep trace and each second thin film transistor (TFT) of even number line odd column simultaneously, by 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, 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, by 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, by 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 the even number line even column each liquid crystal capacitance.
For reaching above-mentioned purpose, the invention provides the system of a display panels, comprise:
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, 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
Feature 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 as follows 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 refer 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.
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 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 by odd number bar sweep trace G3, G5 ... activate the grid voltage of each second thin film transistor (TFT) 302, to drive 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, during second moment, this scanner driver 404 by 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 by even number bar sweep trace G2, G4 ... activate the grid voltage of each second thin film transistor (TFT) 302, to drive 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 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
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 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 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, 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
DCCurrent potential and the current potential of this second common electrode Vcom.(Normally B1ack, 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 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 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 refer 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.
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 each second thin film transistor (TFT) 502 of 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 odd number bar sweep trace G1 simultaneously, G3, G5, each the first film transistor 501 of odd-numbered line odd column pixel and each 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 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 with first display voltage of this first picture.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, during second moment, this scanner driver 604 is by even number bar sweep trace G2, G4, G6, activate the grid voltage of each second thin film transistor (TFT) 502 of 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 even number bar sweep trace G2 simultaneously, G4, each the first film transistor 501 of odd-numbered line even column pixel and each 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 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 by 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, to drive each second thin film transistor (TFT) 502, 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 odd number bar sweep trace G1 simultaneously, G3, G5, each the first film transistor 501 of odd-numbered line odd column pixel and each 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 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 with second display voltage of this second picture.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, during the 4th moment, this scanner driver 604 is by even number bar sweep trace G2, G4, G6, activate the grid voltage of each second thin film transistor (TFT) 502 of 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 even number bar sweep trace G2 simultaneously, G4, each the first film transistor 501 of odd-numbered line even column pixel and each 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 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 writes 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 with second display voltage of this second picture.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 refer 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.
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 each the first film transistor 701 of odd column pixel, 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 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 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 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, 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 each the first film transistor 701 of even column pixel, 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 odd column pixel, to drive each 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 respectively 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 each 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 ... each 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 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 is by odd number bar sweep trace G1, G3, G5, activate the grid voltage of each the first film transistor 701 of odd column pixel, 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 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 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, 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 each the first film transistor 701 of even column pixel, 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 odd column pixel, to drive each 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 respectively 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 each 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 ... each 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 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, picture can 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 in order to limit the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is with being as the criterion that claims scope is defined.
Claims (7)
1. the system of a display panels comprises:
A most pixel constitute; It is 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 described the 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, 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 electrically connected with a data line and one second sweep trace respectively, and second end of this second thin film transistor (TFT) is connected to the electrode of described liquid crystal capacitance one side.
2. 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); It is characterized in that described driving method comprises the following step:
One first display voltage at one first picture, during first moment, activate the transistorized control end voltage of each the first film by even number bar sweep trace, to drive 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, by 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
Described first display voltage at described first picture, during second moment, by odd number bar sweep trace, activate the transistorized control end voltage of each the first film, 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 each second thin film transistor (TFT) that connects the even column of odd number bar sweep trace, by 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), by described data line, first display voltage of described first picture is write in regular turn each liquid crystal capacitance of even column.
3. 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 described the first film of odd-numbered line pixel connects n bar sweep trace respectively, transistorized first end of the described the first film of odd-numbered line pixel is connected to odd number bar data line respectively, transistorized second end of the described the first film of odd-numbered line pixel is connected to the electrode of described liquid crystal capacitance one side, 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) of odd-numbered line pixel is electrically connected one first common electrode, the control end of described second thin film transistor (TFT) of odd-numbered line pixel is electrically connected n+1 bar sweep trace respectively, second end of described second thin film transistor (TFT) of odd-numbered line pixel is connected to the electrode of described liquid crystal capacitance one side, the transistorized control end of described the first film of even number line pixel connects n+1 bar sweep trace respectively, transistorized first end of the described the first film of even number line pixel is connected to even number bar data line, transistorized second end of the described the first film of even number line pixel is connected to the electrode of described liquid crystal capacitance one side, the electrode of this liquid crystal capacitance opposite side is connected to second common electrode, the control end of described second thin film transistor (TFT) of even number line pixel connects n bar sweep trace respectively, first end of described second thin film transistor (TFT) of even number line pixel is electrically connected first common electrode, second end of described second thin film transistor (TFT) of even number line is connected to the electrode of described liquid crystal capacitance one side, and wherein n is an arbitrary integer.
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, and wherein each pixel comprises a liquid crystal capacitance, a first film transistor, one second thin film transistor (TFT); It is characterized in that described driving method comprises the following step:
One first display voltage at one first picture, during first moment, activate the control end voltage of each second thin film transistor (TFT) of even number line odd column pixel by 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, connect each the first film transistor of odd-numbered line odd column pixel of odd number bar sweep trace and each the first film transistor of even number line even column pixel simultaneously, by 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 of driving odd-numbered line odd column pixel and the first film transistor of even number line even column pixel, by each data line, first display voltage of described 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: and
Described first display voltage of described first picture, during second moment, by 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, 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 odd column pixel and even number line even column pixel is coupled into black rank voltage, by 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, by each described data line, 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.
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, and wherein each pixel comprises a liquid crystal capacitance, a first film transistor, one second thin film transistor (TFT); 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 by 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, 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 odd column pixel and even number line even column pixel is coupled into black rank voltage, connect each the first film transistor of odd-numbered line even column pixel of even number bar sweep trace and each the first film transistor of even number line odd column pixel simultaneously, by 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 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; And
Second constantly, described first display voltage of described first picture is by odd number bar sweep trace, activate the control end voltage of each second thin film transistor (TFT) of even number 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 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 odd-numbered line even column pixel and even number line odd column pixel is coupled into black rank voltage, by 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 described 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.
6. the system of a display panels comprises:
A most pixel constitute; It is characterized in that each pixel comprises:
One liquid crystal capacitance; And
One the first film transistor, wherein the capable pixel of m also comprises one second thin film transistor (TFT);
The transistorized control end of described the first film connects n bar sweep trace respectively, transistorized one first end of this first film is connected to the electrode of described liquid crystal capacitance one side, the electrode of this liquid crystal capacitance opposite side is connected to one second common electrode, transistorized one second end of described the first film connects plurality of data lines respectively, the control end of described second thin film transistor (TFT) of the capable pixel of described m connects n+1 bar sweep trace, one first end of described second thin film transistor (TFT) is connected to the electrode of described liquid crystal capacitance one side, one second end of this second thin film transistor (TFT) connects transistorized first end of described the first film of the capable pixel of m-1, wherein m, n is an integer.
7. the driving method of a display panels, this display panels comprises most bar sweep traces, plurality of data lines and most pixels and constitutes, and wherein each pixel comprises a liquid crystal capacitance, a first film transistor, one second thin film transistor (TFT); 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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| CN101882430A (en) * | 2010-07-02 | 2010-11-10 | 深超光电（深圳）有限公司 | Method for driving liquid crystal display device |
| 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 |
| CN102346341A (en) * | 2010-08-04 | 2012-02-08 | 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 |
| WO2013013443A1 (en) * | 2011-07-22 | 2013-01-31 | 深圳市华星光电技术有限公司 | Liquid crystal display device and black insertion method thereof |
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| JP2003323160A (en) * | 2002-04-30 | 2003-11-14 | Sony Corp | Liquid crystal display and driving method of the same, and portable terminal |
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| CN101882430A (en) * | 2010-07-02 | 2010-11-10 | 深超光电（深圳）有限公司 | Method for driving liquid crystal display device |
| CN101882430B (en) * | 2010-07-02 | 2012-01-11 | 深超光电（深圳）有限公司 | Method for driving liquid crystal display device |
| 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 |
| CN102346341A (en) * | 2010-08-04 | 2012-02-08 | 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 |
| 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 |
| WO2013013443A1 (en) * | 2011-07-22 | 2013-01-31 | 深圳市华星光电技术有限公司 | Liquid crystal display device and black 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 |
| WO2017140005A1 (en) * | 2016-02-18 | 2017-08-24 | 深圳市华星光电技术有限公司 | Array substrate, liquid crystal display device and driving method for liquid crystal display device |
| CN110210421A (en) * | 2019-06-05 | 2019-09-06 | 京东方科技集团股份有限公司 | A kind of imaging backboard and its driving method, fingerprint recognition panel |
| US11393241B2 (en) | 2019-06-05 | 2022-07-19 | Boe Technology Group Co., Ltd. | Imaging backplane, driving method thereof and fingerprint identification panel |
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