CN1340728A - Liquid crystal display panel and control method thereof - Google Patents
Liquid crystal display panel and control method thereof Download PDFInfo
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Abstract
A liquid crystal display panel and its control method are characterized by that a recovery transistor is set between adjacent display units of same scanning line, its grid is connected to previous scanning electrode, and its source and drain are connected between display electrodes in these two display units. When the previous scanning electrode is scanned, the recycling transistor is turned on and the coupling charges in the display electrode are distributed again. Because the original video signals have different polarities, the display electrode voltage approaches the common electrode voltage after the recovery and redistribution. Therefore, when the scan line is scanned, the voltage of the common electrode is only required to be increased or decreased to the positive polarity or the negative polarity.
Description
The present invention relates to the control technology of a kind of display panels (LCD panel), particularly utilize the adjacent scanning lines control signal to reach the driving method of electric charge on recovery (recycle) show electrode and the display panels and the control method thereof of circuit.
Fig. 1 represents the schematic equivalent circuit of known Thin Film Transistor-LCD (thin film transistor liquid crystaldisplay is hereinafter to be referred as TFT-LCD).As shown in the figure, on the display panels 1 be by crisscross data electrode (with D1, D2, D3 ... Dy represents) and scan electrode (with G1, G2 ... Gx represents), staggered data electrode and the scan electrode of each group can be used for controlling a display unit (display unit), and for example data electrode D1 and scan electrode G1 can be used for controlling display unit 100.As shown in the figure, the equivalent electrical circuit of display unit 100 (other display units are also identical) comprises thin film transistor (TFT) 10, memory capacitance Cs that controls usefulness and the liquid crystal capacitance C1c that is made of show electrode (displayelectrode) and common electrode (common electrode).The grid of thin film transistor (TFT) 10 is connected scan electrode G1 and data electrode D1 respectively with drain electrode, by the On/Off state of the sweep signal control TFT 10 on the scan electrode G1, the vision signal on data electrode D1 can be written in the display unit 100.
3 of scanner drivers (scan driver) are sent each scan electrode G1, G2 in regular turn according to scan control signal ... on sweep signal, make and only opening a certain thin film transistor (TFT) that lists all display units together in a flash, and close the thin film transistor (TFT) that other (x-1) list all display units.And when the thin film transistor (TFT) of a row display unit is all opened, 2 of data drivers (data driver) are according to image data to be shown, via data electrode (D1, D2 ... Dy), send corresponding vision signal (GTG value) to y display unit of these row.When scanner driver 3 is finished once scanning motion on all x column scan lines, i.e. the display action of single frame (frame) is finished in expression.Therefore, each sweep trace of multiple scanning and send vision signal just can reach the purpose of show image.
Generally at data electroplax D1, D2, D3 ... on the vision signal that transmitted, according to and common electrode voltage VCOM between relation, can be divided into two kinds of positive video signal and negative video signals.Fig. 2 represents the concern synoptic diagram of the vision signal of opposed polarity with respect to common electrode voltage VCOM.As shown in Figure 2, positive video signal is between common electrode voltage VCOM and system high voltage VDD, according to the GTG value difference of its representative, its actual voltage value be between voltage Vp1 and voltage Vp2 (general more near common electrode voltage VCOM corresponding to lower GTG value).Relatively, negative video signal is between common electrode voltage VCOM and system low-voltage VSS, GTG value difference according to its representative, its actual voltage value be between voltage Vn1 and voltage Vn2 (similarly, more near common electrode voltage VCOM corresponding to lower GTG value).Corresponding to the voltage of same gray level value, be identical in positive video signal and the negative video signal driving on the effect.
In order to prevent that liquid crystal molecule only is subjected to single polarity electric field bias constantly, cause the liquid crystal molecule life-span to shorten, therefore single display unit method among general drive TFT-LCD is the vision signal that receives opposite polarity respectively when odd-numbered frame and coupling are counted frame.
According to the configuration mode of opposed polarity vision signal, roughly can divide into following four kinds of kenels: frame reversal pattern (frame inversion), row reversal pattern (1ine inversion), row reversal pattern (column inversion) and staggered reversal pattern (dot inversion) at each display unit.
Fig. 3 A is illustrated in the synoptic diagram of the vision signal polarity that each display unit received in the frame reversal pattern.As shown in Figure 3A, its left-hand component is in the expression odd-numbered frame, the received vision signal polarity of each display unit in data electrode Dn-1, Dn, Dn+1 and scan electrode Gm-1, Gm, the defined panel zone of Gm+1 as shown in the figure, all is positive polarity ("+"); Its right-hand component is then represented in the even frame, in the received vision signal polarity of these identical display units, as shown in the figure, all is negative polarity ("-").
Fig. 3 B is illustrated in the synoptic diagram of the vision signal polarity that each display unit received in the row reversal pattern.Different with Fig. 3 A is that the display unit of same row (same data line) can receive the identical vision signal of polarity in same frame, but then receives vision signal opposite polarity with it on the display unit of its adjacent column.
Fig. 3 C represent to be expert at synoptic diagram of the vision signal polarity that each display unit received in the reversal pattern.Fig. 3 C is similar with Fig. 3 B on the vision signal polar configurations, but is that the display unit of same delegation (same sweep trace) receives the identical vision signal of polarity in same frame, and the display unit of adjacent lines then receives opposite polarity vision signal.
Fig. 3 D is illustrated in the synoptic diagram of the vision signal polarity that each display unit received in the staggered reversal pattern, wherein to be adjacent display unit be to receive opposite polarity vision signal in same frame to each display unit, that is dispose the polarity of vision signal alternately.
Fig. 4 then represents the circuit diagram of display panels part in the known technology, wherein comprises data electrode Dn-1, Dn+1, scan electrode Gm-1, Gm and corresponding display unit.When sweep signal occurring on the scan electrode Gm-1, the thin film transistor (TFT) that then connects scan electrode Gm-1 is unlocked, and then the vision signal on data electrode Dn, Dn+1 can be coupled to the show electrode of corresponding display unit.Then, when sweep signal occurring on the scan electrode Gm, the thin film transistor (TFT) TFT1, the TFT2 that then connect scan electrode can be unlocked, and the vision signal on data electrode Dn, Dn+1 can be coupled to show electrode P1, the P2 of corresponding display unit.
Suppose among Fig. 4 it is to adopt the staggered reversal pattern or the vision signal polar configurations mode of row reversal pattern.Fig. 5 is the sequential chart of scan electrode Gm-1, Gm and show electrode P1, the last change in voltage of P2 in the presentation graphs 4 then.Wherein, the sweep signal in certain frame and next frame, 30,31 sweep signals of representing respectively in the corresponding frame of the pulse on the scan electrode Gm are represented in the pulse 20,21 on the scan electrode Gm-1 respectively.In each sweep signal (20,21,30,31), in, can open the thin film transistor (TFT) of its connection, the vision signal on the data electrode is coupled on the corresponding show electrode.
With scan electrode Gm is example, supposed before sweep signal 30 is sent, before the time t1, the vision signal of being stored in the show electrode P1 electric capacity is a positive polarity, between voltage Vp1 and Vp2, and the vision signal of being stored in the show electrode P2 electric capacity is a negative polarity, between voltage Vn1 and Vn2.
During sweep signal 30, time t1～t2, sweep signal 30 can be opened thin film transistor (TFT) TFT1 and TFT2, vision signal just is coupled to show electrode P1 and P2 as previously mentioned by data electrode Dn and Dn+1, for the same display unit of TFT-LCD, the present vision signal that is coupled must have opposite polarity with the vision signal of storage former frame.
Therefore between time t2～t3, this moment, thin film transistor (TFT) TFT1 and TFT2 all closed, and the vision signal of being stored in the show electrode P1 electric capacity is a negative polarity, between voltage Vn1 and Vn2, and the vision signal of being stored in the show electrode P2 electric capacity is a positive polarity, between voltage Vp1 and Vp2.
(Gm+1～Gx, G1～Gm-1) then just send sweep signal 31 corresponding to next frame, time t3～t4 to scan electrode Gm after other sweep trace of scanning.At this moment, vision signal polarity is also opposite with former frame, that is, the vision signal that show electrode P1 is coupled is a positive polarity, and between voltage Vp1 and Vp2, and the vision signal that show electrode P2 is coupled is a negative polarity, between voltage Vn1 and Vn2.Count in the frame at adjacent odd number and coupling so repeatedly, send vision signal with opposite polarity.
Yet the vision signal reversal of poles mode that known technology adopted has its shortcoming in actual operation.That is,, become positive polarity by negative polarity exactly between consecutive frame, therefore just have a large amount of power consumptions and produce too much heat energy because the vision signal of being sent on the data electrode is not to become negative polarity by positive polarity.
United States Patent (USP) 6,064,363 propose a kind of electric charge and reclaim the excessive problem of voltage level change that skill reduces vision signal.It mainly is to be provided with one to reclaim unit (recycling unit) between adjacent data electrode, it is controlled by the control signal that control circuit produced by extra setting, be used for before sweep trace of each scanning, promptly handle all display units on the same scan electrode, electric charge on adjacent two data electrodes is reclaimed, and mean allocation.Because in staggered reversal pattern, adjacent two display units are the vision signals that receive opposed polarity, so after recovery and mean allocation, the current potential on the data electrode can be very near common electrode current potential VCOM.This only makes when sending vision signal next time and need move positive polarity to or negative polarity gets final product from common electrode current potential VCOM, can significantly reduce the consumption of electric power.
But, ' 363 the mode that adopted of patent also has its shortcoming.At first be its control mode, ' 363 patents are to utilize control signal independently to control that above-mentioned electric charge reclaims and the reallocation action, control circuit need be set in addition produce corresponding control signal.In addition, ' 363 patents are when sweep trace of each scanning, reclaim and distribute electric charge on adjacent two data electrodes; But because of thin film transistor (TFT) cuts out, so do not reclaim electric charge on the show electrode.But in fact, when data driver 2 will be coupled to vision signal corresponding display unit, not only will drive each data electrode, also will drive the show electrode in each display unit, therefore in fact show electrode also can stay considerable electric charge.Therefore, only the electric charge on the data electrode is reclaimed and redistributed, can not handle the electric charge in the show electrode.So show electrode still must drive, obviously do not solve the problem of power consumption fully between positive polarity and negative polarity in the extremely short time.
In view of this, fundamental purpose of the present invention, be to provide a kind of display panels and control method thereof, do not need extra control circuit to produce and be used for carrying out the action of reclaiming the reallocation electric charge, can be reallocated at the electric charge that is coupled by the opposed polarity vision signal on the show electrode simultaneously, be reached the purpose that reduces power consumption.
According to above-mentioned purpose, the present invention proposes a kind of display panels, can cooperate data driver and scanner driver to constitute LCD.The vision signal of being sent on the data driver is to adopt staggered reversal pattern or row reversal pattern, that is the vision signal of being sent on the adjacent data line has opposite polarity.Comprise the first adjacent data electrode and second data electrode in this display panels, have the vision signal of opposed polarity in order to reception.On first data electrode and second data electrode and same scan electrode corresponding to first display unit and second display unit.Each display unit has its show electrode and oxide-semiconductor control transistors.In a display unit, the grid of oxide-semiconductor control transistors is to be couple on this scan electrode, its source electrode then is coupled between its show electrode and the corresponding data electrode with drain electrode, use according to the sweep signal on the scan electrode, the vision signal on the data electrode is coupled on the inner show electrode.Be primarily characterized in that, be provided with a recovery transistor at the first above-mentioned display unit and second display unit, this reclaims transistorized grid is to be connected on another scan electrode, preferably adjacent and at scanning sequency scan electrode early with present this scan electrode.This reclaims transistorized source electrode and drain electrode then is to be connected between first display unit and the interior show electrode of second display unit.That is, when scanning this another scan electrode, the sweep signal that is transmitted on it then can be opened the recovery transistor, makes the interior coupling electric charge of show electrode go again and distributes.
Because the polarity difference of script vision signal, therefore after reclaiming reallocation, voltage generally can be in close proximity to common electrode voltage (VCOM) on the show electrode in first display unit and second display unit.By this, reach the purpose that reduces power consumption.In addition, the show electrode in each display unit also can couple by show electrode in the display unit of two its left and right sides of recovery transistor AND gate, uses the purpose that reaches charge redistribution.
Therefore, the present invention proposes a kind of display panels, this display panels comprise one first data electrode and one second data electrode (Dn, Dn+1); First scan electrode and second scan electrode (Gm, Gm-1); One first display unit has one first show electrode and one first display switch, and this first display switch is coupled to this first scan electrode, and responds the signal of this first scan electrode, and optionally this first show electrode of conducting and this first data electrode; One second display unit has one second show electrode and one second display switch, and this second display switch is coupled to this first scan electrode, and responds the signal of this first scan electrode, and optionally this second show electrode of conducting and this second data electrode; And one first reclaim switch, and this first reclaims switch and be coupled to this second scan electrode, and responds the signal of this second scan electrode, and optionally this first show electrode of conducting and this second show electrode.
In addition, the present invention also provides a kind of control method of display panels, and at first scanner driver can be sent the one scan signal to each scan electrode in regular turn, in order to open the oxide-semiconductor control transistors in all display units on the corresponding scan electrode.
During this sweep signal, data driver can be sent corresponding vision signal to the data electrode, and this vision signal is the oxide-semiconductor control transistors by being unlocked then, is sent to the show electrode of display unit.Simultaneously, the sweep signal that is transmitted is used for controlling a device in addition, this device is according to this sweep signal, can be used for coupling the show electrode in the adjacent display cell on another scan electrode that is different from the current scanline electrode, electric charge can be reallocated by this, and reduces data driver and send vision signal to the needed power consumption of show electrode.This control method consists essentially of following two steps: (1) sends one first sweep signal to the previous column scan electrode (Gm-1) with the order of frame scan early earlier, reclaim switch in order to open, to redistribute the electric charge on this first show electrode and this second show electrode; (2) again the scan electrode (Gm) with later frame scan order is sent second sweep signal, in order to open this first display switch and this second display switch, make first vision signal and second vision signal on this first data electrode and one second data electrode, can be sent to respectively on this first show electrode and this second show electrode.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and in conjunction with the accompanying drawings, elaborate.
Fig. 1 represents the schematic equivalent circuit of known Thin Film Transistor-LCD.
Fig. 2 represents positive video signal and the negative video signal synoptic diagram that concerns with respect to common electrode voltage VCOM.
Fig. 3 A～3D is illustrated respectively in frame reversal pattern, row reversal pattern, row reversal pattern and the staggered reversal pattern, the synoptic diagram of the vision signal polarity that different display unit is sent.
Fig. 4 represents the circuit diagram of known display panels.
Fig. 5 is illustrated in the sequential chart of scan electrode Gm-1, Gm among Fig. 4 and show electrode P1, the last change in voltage of P2.
Fig. 6 represents the circuit diagram of display panels in the first embodiment of the invention.
Fig. 7 is illustrated in the sequential chart of scan electrode Gm-1, Gm among Fig. 6 and show electrode P1, the last change in voltage of P2.
Fig. 8 represents the circuit diagram of display panels in the second embodiment of the invention.
Display panels of the present invention mainly is to utilize the sweep signal that promptly exists originally to start the action that electric charge reclaims and heavily distributes, and is to handle the electric charge on the show electrode in each display unit, uses and reduces actual coupling video signal desired power.Below in conjunction with accompanying drawing, describe each embodiment in detail.
Fig. 6 represents the circuit diagram of display panels in the first embodiment of the invention.As shown in the figure, its basic structure is similar to Fig. 4 of known technology.Data electrode Dn-1, Dn, Dn+1 and horizontal scan electrode Gm-1 and Gm longitudinally in Fig. 6, have been comprised.Wherein each group data electrode (Dn, Dn+1) and scan electrode (Gm-1, Gm) are in order to control a show electrode.Example in following explanation is at two adjacent display cells on the scan electrode Gm, and it comprises corresponding thin film transistor (TFT) TFT1, TFT2 and show electrode P1, P2 respectively, and other are then not shown in Fig. 6 as memory capacitance, common electrode.
In the display panels shown in Figure 6, principal character is to be provided with one to reclaim transistor T FT3 between two adjacent display units.This grid that reclaims transistor T FT3 is connected in last scan electrode Gm-1, and its source electrode and drain electrode then are connected in show electrode P1, the P2 of these two display units.The unlocking condition that reclaims transistor T FT3 is determined by the sweep signal on the scan electrode Gm-1, promptly, when scanning the sweep trace of being controlled by scan electrode Gm-1, just send scanning impulse thereon, just can open this and reclaim transistor T FT3, and a coupling path is provided between show electrode P1, P2.Is the vision signal that is coupled to positive polarity/negative polarity respectively because show electrode P1, P2 are expert in reversal pattern or the staggered reversal pattern, so after the electric charge with show electrode P1, P2 reclaimed and redistributes, its both voltage can approach common electrode voltage.Therefore, when scanning the sweep trace of being controlled by scan electrode Gm, only need significantly reduce the electric power that this two show electrode P1, P2 need consume that drives with show electrode P1, P2 from promote or be pulled down to the video level of positive polarity/negative polarity near common electrode voltage VCOM.
Fig. 7 is illustrated in the sequential chart of scan electrode Gm-1, Gm among Fig. 6 and show electrode P1, the last change in voltage of P2.In Fig. 7, the sweep signal among certain frame Fram (n) and next the frame Frame (n+1) is represented in pulse 20,21 on the scan electrode Gm-1 respectively, corresponding frame Frame (n) is represented in 30,31 of pulses on the scan electrode Gm respectively, the sweep signal among the Frame (n+1).
In each sweep signal (20,21,30,31), can open the thin film transistor (TFT) of its connection, allow the vision signal on the data electrode be coupled on the corresponding show electrode.
As shown in Figure 7, before the m-1 column scan line of scanning frame Frame (n), that is send before the sweep signal 20 on the scan electrode Gm-1, before the time t5, the vision signal of being stored in the show electrode P1 electric capacity is a positive polarity, between voltage Vp1 and Vp2, the vision signal of being stored in the show electrode P2 electric capacity is a negative polarity, between voltage Vn1 and Vn2.
When the m-1 column scan line of scanning frame Frame (n), when sending sweep signal 20 on the scan electrode Gm-1 and carrying out scanning motion, time t5～t6, this one scan signal 20 can open equally and reclaim transistor T FT3.After reclaiming transistor T FT3 unlatching, just between show electrode P1, P2, set up a coupling path.
Charge redistribution makes the voltage on show electrode P1, the P2 level off to common electrode voltage VCOM.
Then, when sending 30 pairs of m column scans of sweep signal line on the scan electrode Gm and carry out scanning motion, time t7～t8, sweep signal 30 can be opened thin film transistor (TFT) TFT1 and TFT2, vision signal just is coupled to show electrode P1 and P2 by data electrode Dn and Dn+1, the vision signal that this moment, data electrode Dn upward imported is a negative polarity, and the vision signal that data electrode Dn-1 upward imports is a positive polarity.
Because the voltage of show electrode P1 and P2 has approached common electrode voltage VCOM in last scanning motion, so no matter the coupling video signal is positive polarity or negative polarity, reality only need rise to positive polarity or be pulled down to negative polarity and get final product from common electrode voltage VCOM.As shown in the figure, show electrode P1 is pulled down to reverse voltage, and between voltage Vn1 and Vn2, show electrode P2 then is promoted to positive polarity, between voltage Vp1 and Vp2.
When next frame Frame (n+1) continues to scan scan electrode Gm-1 corresponding scanning beam again.When sending sweep signal 21, time t9～t10 similarly, reclaims transistor T FT3 and just opens and heavily be distributed in electric charge on show electrode P1, the P2, makes voltage on show electrode P1, the P2 once again near common electrode voltage VCOM.Then when sending sweep signal 31 on the scan electrode Gm and carry out scanning motion, time t11～t12, vision signal just is coupled to show electrode P1 and P2 by data electrode Dn and Dn+1, the vision signal that this moment, data electrode Dn upward imported is a positive polarity, and the vision signal that data electrode Dn-1 upward imports is a negative polarity.Therefore show electrode P1 and P2 rise to positive polarity or are pulled down to negative polarity from common electrode voltage VCOM.Follow-up scanning motion also repeats above-mentioned program.
As previously mentioned, the processing that the recovery electric charge that present embodiment adopted heavily distributes again is to utilize the sweep signal on the last sweep trace to be started, and directly handles the show electrode of each display unit, reaches best effect.Mandatory declaration be, though recovery transistor T FT3 shown in Figure 6 is with last sweep trace, that is by controlling on the scan electrode Gm-1, on sweep signal control its On/Off state, yet in fact be can adopt any on scanning sequency early sweep trace finish (Gm-2, Gm-3); Only both influence the picture display quality easily, so the time are short more good more when the time is too of a specified duration as if " electric charge recovery " and " scanning motion ".Can be arranged between two adjacent on any sweep trace display units and reclaim transistor T FT3, because these two display units are the vision signals that receive opposed polarity in same frame, therefore after charge redistribution, all can make voltage quite approach common electrode voltage VCOM.
Be between per two adjacent display units the recovery transistor being set on the same sweep trace in first embodiment, and in the present embodiment, then be between all adjacent display units the recovery transistor to be set on the same sweep trace.Fig. 8 represents the circuit diagram of display panels in the present embodiment, as shown in the figure, show electrode P1 is connected respectively to and reclaims transistor T FT4 and TFT5, wherein reclaim the show electrode (not shown) that transistor T FT4 is used for connecting its left side display unit, reclaiming transistor T FT5 then is the show electrode P2 that is used for connecting its right side display unit.In addition, show electrode P2 is connected respectively to and reclaims transistor T FT5 and TFT6, wherein reclaiming transistor T FT5 then is the show electrode P1 that is used for connecting its left side display unit, and reclaiming transistor T FT6 then is the show electrode (not shown) that is used for connecting its right side display unit.Recovery transistor T FT4 among the figure, the grid of TFT5, TFT6 all are connected to scan electrode Gm-1.
Identical with first embodiment, when on scan electrode Gm-1, sending sweep signal, recovery transistor T FT4, TFT5, TFT6 all can be unlocked, and this is formed in a upward coupled in common path between all show electrodes of scan electrode Gm, makes electric charge heavily distribute.After electric charge heavily distributed, the voltage on all show electrodes then approximately dropped near the common electrode voltage VCOM.So when scanning scan electrode Gm, these show electrodes just only need to rise to positive polarity from common electrode voltage VCOM, between Vp1 and Vp2 or be pulled down to negative polarity, between Vn1 and Vn2, significantly reduce the electric power of required consumption.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention should be with being as the criterion that the claim scope is defined.
Claims (10)
1. display panels, it comprises:
One first data electrode;
One second data electrode;
One first scan electrode;
One second scan electrode;
One first display unit, have one first show electrode and one first oxide-semiconductor control transistors, the grid of described first oxide-semiconductor control transistors couples described first scan electrode, and the source electrode of described first oxide-semiconductor control transistors and drain electrode are to couple described first show electrode and described first data electrode respectively;
One second display unit, have one second show electrode and one second oxide-semiconductor control transistors, the grid of described second oxide-semiconductor control transistors couples described first scan electrode, and the source electrode of described second oxide-semiconductor control transistors and drain electrode are to couple described second show electrode and described second data electrode respectively; And
At least one first reclaims transistor, and described first reclaims transistorized grid is coupled to described second scan electrode, and described first transistorized source electrode of recovery and drain electrode are to be respectively coupled to described first show electrode and described second show electrode.
2. display panels as claimed in claim 1, wherein said second scan electrode be adjacent to described first scan electrode, and on the scanning sequency of same frame, early than described first scan electrode.
3. display panels as claimed in claim 1 wherein also comprises;
One the 3rd data electrode, wherein said second data electrode is between described the 3rd data electrode and described first data electrode;
One the 3rd display unit, have one the 3rd show electrode and one the 3rd oxide-semiconductor control transistors, the grid of described the 3rd oxide-semiconductor control transistors couples described first scan electrode, and the source electrode of described the 3rd oxide-semiconductor control transistors and drain electrode are to couple described the 3rd show electrode and described the 3rd data electrode respectively; And
One second reclaims transistor, and described second reclaims transistorized grid is coupled in described second scan electrode, and described second transistorized source electrode of recovery and drain electrode are to be coupled in described the 3rd show electrode and described second show electrode respectively.
4. the control method of a display panels, wherein said display panels comprises a plurality of data electrodes, a plurality of scan electrode and corresponding at least one display unit of one of described data electrode and one of described scan electrode, described display unit has a transistor and a show electrode, described transistorized grid is coupled in corresponding described scan electrode, its source electrode is coupled in described show electrode and described data electrode respectively with drain electrode, and it comprises the following steps;
In regular turn described scan electrode is sent the one scan signal, send the described transistor in the pairing described display unit of described scan electrode of described sweep signal in order to unlatching;
During described sweep signal, described data electrode is sent vision signal, the described transistor of described vision signal by being unlocked is sent to the described show electrode of described display unit; And
During described sweep signal, transmit described sweep signal to a device, described device is according to described sweep signal, in order to couple the described show electrode in the adjacent described display unit of another scan electrode pairing at least two of being different from the described scan electrode of sending described sweep signal.
5. control method as claimed in claim 4, the described scan electrode of wherein sending described sweep signal are adjacent to described another scan electrode, and on the scanning sequency of same frame, early than the described scan electrode of sending described sweep signal.
6. LCD, it comprises;
One data driver, in order to produce first vision signal and second vision signal, described first vision signal and described second vision signal have opposite polarity in a frame;
The one scan driver is in order to produce first sweep signal and second sweep signal;
One display panels is coupled in described data driver and described scanner driver, and it comprises:
One first data electrode is in order to receive described first vision signal;
One second data electrode is in order to receive described second vision signal;
One first scan electrode is in order to receive described first sweep signal;
One second scan electrode is in order to receive described second sweep signal;
One first display unit, have one first show electrode and one first oxide-semiconductor control transistors, the grid of described first oxide-semiconductor control transistors couples described first scan electrode, the source electrode of described first oxide-semiconductor control transistors and drain electrode are to couple described first show electrode and described first data electrode respectively, in order to extremely described first show electrode of described first vision signal that is coupled;
One second display unit, have one second show electrode and one second oxide-semiconductor control transistors, the grid of described second oxide-semiconductor control transistors couples described first scan electrode, and the source electrode of described second oxide-semiconductor control transistors and drain electrode are to couple described second show electrode and described second data electrode respectively; In order to extremely described second show electrode of described second vision signal that is coupled; And
At least one first reclaims transistor, described first reclaims transistorized grid is coupled in described second scan electrode, in order to receive described second sweep signal, described first transistorized source electrode of recovery and drain electrode are to be coupled in described first show electrode and described second show electrode respectively, in order to the electric charge on reallocate described first show electrode and described second show electrode.
7. LCD as claimed in claim 6, wherein said second scan electrode are adjacent to described first scan electrode, and described second sweep signal is on the scanning sequency of same frame, early than described first sweep signal.
8. LCD as claimed in claim 6, wherein said data driver produce one the 3rd vision signal, and described display panels also comprises:
One the 3rd data electrode, wherein said second data electrode are between described the 3rd data electrode and described first data electrode, in order to receive described the 3rd vision signal;
One the 3rd display unit, have one the 3rd show electrode and one the 3rd oxide-semiconductor control transistors, the grid of described the 3rd oxide-semiconductor control transistors couples described first scan electrode, the source electrode of described the 3rd oxide-semiconductor control transistors and drain electrode are to couple described the 3rd show electrode and described the 3rd data electrode respectively, in order to extremely described the 3rd show electrode of described the 3rd vision signal that is coupled; And
One second reclaims transistor, described second reclaims transistorized grid is coupled in described second scan electrode, described second transistorized source electrode of recovery and drain electrode are to be coupled in described the 3rd show electrode and described second show electrode respectively, and wherein said first reclaims transistor and described second reclaims transistor in order to the electric charge on described first show electrode of reallocating, described second show electrode and described the 3rd show electrode.
9. display panels, it comprises:
One first data electrode;
One second data electrode;
One first scan electrode;
One second scan electrode, this second scan electrode have the frame scan order early than this first scan electrode;
One first display unit has one first show electrode and one first display switch, and this first display switch responds the signal of this first scan electrode, and optionally this first show electrode of conducting and this first data electrode;
One second display unit has one second show electrode and one second display switch, and this second display switch responds the signal of this first scan electrode, and optionally this second show electrode of conducting and this second data electrode; And
One first reclaims switch, be arranged between this first display unit and this second display unit, the signal of this this second scan electrode of first recovery switching response, and optionally this first show electrode of conducting and this second show electrode, in order to redistribute the electric charge on this first show electrode and this second show electrode.
10. the control method of a display panels, wherein display panels comprises one first data electrode and one second data electrode, one first scan electrode and one second scan electrode, one first display unit, have one first show electrode and one first display switch, this first display switch is coupled to this first scan electrode, and responds the signal of this first scan electrode, and optionally this first show electrode of conducting and this first data electrode; One second display unit has one second show electrode and one second display switch, and this second display switch is coupled in this first scan electrode, and responds the signal of this first scan electrode, and optionally this second show electrode of conducting and this second data electrode; And one first reclaim switch, and this first reclaims switch and be coupled to this second scan electrode, and responds the signal of this second scan electrode, and optionally this first show electrode of conducting and this second show electrode, this control method comprises the following steps:
This second scan electrode is sent one first sweep signal, in order to open this first recovery switch, to redistribute the electric charge on this first show electrode and this second show electrode; And
This first scan electrode is sent one second sweep signal, in order to open this first display switch and this second display switch, make one first vision signal and one second vision signal on this first data electrode and one second data electrode, can be sent to respectively on this first show electrode and this second show electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00126304 CN1125363C (en) | 2000-08-28 | 2000-08-28 | Liquid crystal display panel and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00126304 CN1125363C (en) | 2000-08-28 | 2000-08-28 | Liquid crystal display panel and control method thereof |
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| Publication Number | Publication Date |
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| CN1340728A true CN1340728A (en) | 2002-03-20 |
| CN1125363C CN1125363C (en) | 2003-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 00126304 Expired - Lifetime CN1125363C (en) | 2000-08-28 | 2000-08-28 | Liquid crystal display panel and control method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414596C (en) * | 2005-12-02 | 2008-08-27 | 群康科技(深圳)有限公司 | Liquid crystal display, its drive circuit and driving method |
| US7928947B2 (en) | 2007-03-20 | 2011-04-19 | Lg Display Co., Ltd. | Liquid crystal display device and method of driving the same |
| CN104062790A (en) * | 2014-06-09 | 2014-09-24 | 深圳市华星光电技术有限公司 | Display device and driving method thereof |
| CN106125435A (en) * | 2016-08-31 | 2016-11-16 | 深圳市华星光电技术有限公司 | Liquid crystal panel and liquid crystal display |
-
2000
- 2000-08-28 CN CN 00126304 patent/CN1125363C/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414596C (en) * | 2005-12-02 | 2008-08-27 | 群康科技(深圳)有限公司 | Liquid crystal display, its drive circuit and driving method |
| US7928947B2 (en) | 2007-03-20 | 2011-04-19 | Lg Display Co., Ltd. | Liquid crystal display device and method of driving the same |
| CN104062790A (en) * | 2014-06-09 | 2014-09-24 | 深圳市华星光电技术有限公司 | Display device and driving method thereof |
| WO2015188390A1 (en) * | 2014-06-09 | 2015-12-17 | 深圳市华星光电技术有限公司 | Display device and driving method therefor |
| CN106125435A (en) * | 2016-08-31 | 2016-11-16 | 深圳市华星光电技术有限公司 | Liquid crystal panel and liquid crystal display |
| WO2018040163A1 (en) * | 2016-08-31 | 2018-03-08 | 深圳市华星光电技术有限公司 | Lcd panel and lcd monitor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1125363C (en) | 2003-10-22 |
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