CN101572046B - Data driving circuit, display device and control method of display device - Google Patents

Data driving circuit, display device and control method of display device Download PDF

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Publication number
CN101572046B
CN101572046B CN2008100839389A CN200810083938A CN101572046B CN 101572046 B CN101572046 B CN 101572046B CN 2008100839389 A CN2008100839389 A CN 2008100839389A CN 200810083938 A CN200810083938 A CN 200810083938A CN 101572046 B CN101572046 B CN 101572046B
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signal
temporary storage
storage unit
offset units
display device
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CN101572046A (en
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萨文志
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Store Electronic Systems SA
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Pervasive Displays Inc
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Abstract

The invention relates to a data driving circuit which comprises a displacement temporary storage unit and a position deflecting unit, wherein the position deflecting unit is respectively and electrically connected with the displacement temporary storage unit and a plurality of data wires. The displacement temporary storage unit receives a clock signal and at least one input image signal and generates an output image signal. The position deflecting unit receives the output image signal and generates a plurality of display signals to the data wires. In addition, the invention also discloses a display device and a control method thereof.

Description

Data drive circuit, display device and method for controlling display device
Technical field
The present invention is about a kind of data drive circuit, display device and method for controlling display device.
Background technology
Display device is by early stage cathode-ray tube (CRT) (cathode ray tube; CRT) display device is developed to liquid crystal display (liquid crystal display now; LCD) device, Organic Light Emitting Diode (organic light emitting diode; OLED) display device and Electronic Paper (E-Paper) display device, its volume and weight are dwindled all significantly, and are widely used on the products such as communication, information and consumer electronics.
Please with reference to shown in Figure 1, known display device 1 is an example with the liquid crystal indicator, and it comprises a display panels 11 and a data drive circuit 12.Data drive circuit 12 is through a plurality of data line D 01～D 0mElectrically connect with display panels 11.
Data drive circuit 12 comprises a displacement temporary storage unit 122, a first order latch lock unit 123, a second level latch lock unit 124 and an accurate offset units 125.Displacement temporary storage unit 122 electrically connects with first order latch lock unit 123, and second level latch lock unit 124 electrically connects with the accurate offset units 125 of first order latch lock unit 123 and position respectively.
Please be simultaneously with reference to shown in Figure 2, displacement temporary storage unit 122 is according to an initial pulse signal (start pulse) S 01An and clock signal CK and produce shift register signal S R1~ S RN, and be sent to first order latch lock unit 123.
First order latch lock unit 123 receives and according to shift register signal S R1~ S RNReceive a signal of video signal S 02, signal of video signal S wherein 02Comprise a plurality of image datas, and be stored in the first order latch lock unit 123.Second level latch lock unit 124 is according to a breech lock enable signal (latch enable) S 03And with signal of video signal S 02In acquisition to the second level latch lock unit 124.The accurate offset units 125 in position will be stored in the signal of video signal S in the second level latch lock unit 124 02Convert a shows signal to, and via corresponding data line D 01～D 0mTransfer to display panels 11 and show a display frame.
Yet, now display device with light, thin, short, little be designer trends, if can under the framework of existing display device, reduce number of components, and reach identical functions, can make display device more save space or more frivolous, and then save production cost.Therefore, how a kind of data drive circuit, display device and method for controlling display device that can reduce member is provided, real is one of important topic now.
Summary of the invention
Because above-mentioned problem the purpose of this invention is to provide a kind of data drive circuit, display device and method for controlling display device that reduces member.
Data drive circuit of the present invention refers to for will importing the signal that signal of video signal converts another pattern to, and this signal can directly drive pixel (pixel) circuit of display device, wherein imports signal of video signal and comprises information or the figure that is shown in display device.In the present invention, data drive circuit can be an one source pole driving circuit (source driving circuit) or a horizontal drive circuit (column driving circuit).
For reaching above-mentioned purpose, the present invention provides a kind of data drive circuit, and it comprises a displacement temporary storage unit and an accurate offset units.Wherein, displacement temporary storage unit receives a clock signal and at least one input signal of video signal, and produces an output image signal.The accurate offset units in position electrically connects with displacement temporary storage unit and a plurality of data line respectively.The accurate offset units in position receives output image signal, and produces a plurality of shows signal according to this to data line.
For reaching above-mentioned purpose, the present invention provides a kind of display device, and it comprises a display panel and a data drive circuit.Wherein, the picture element arrangement mode of display panel can be one dimension matrix or two-dimensional matrix pattern, and data drive circuit electrically connects through a plurality of data lines and display panel, and data drive circuit has a displacement temporary storage unit and an accurate offset units.Wherein, displacement temporary storage unit receives a clock signal and at least one input signal of video signal, and produces an output image signal.The accurate offset units in position electrically connects with displacement temporary storage unit and a plurality of data line respectively.The accurate offset units in position receives output image signal, and produces a plurality of shows signal according to this to display panel.
For reaching above-mentioned purpose, the present invention provides a kind of method for controlling display device, and wherein display device has a display panel and a data drive circuit, and data drive circuit has a displacement temporary storage unit and an accurate offset units.Method for controlling display device comprises the following step: import a clock signal and at least one input signal of video signal to displacement temporary storage unit; Produce the accurate offset units in an output image signal to position by this displacement temporary storage unit according to the input signal of video signal; And produce a plurality of shows signal to display panel according to output image signal by the accurate offset units in position.
For reaching above-mentioned purpose, the present invention provides a kind of data drive circuit, and it comprises a displacement temporary storage unit, accurate offset units and a sampling keeping unit.Wherein, displacement temporary storage unit receives a clock signal and at least one input signal of video signal, and produces an output image signal.Position accurate offset units and displacement temporary storage unit electrically connect, and reception and produce a control signal according to output image signal.Sampling keeping unit electrically connects with the accurate offset units in position and a plurality of data line respectively, and receives and according to a control signal and an input position calibration signal, produce a plurality of shows signal to data line.
For reaching above-mentioned purpose, the present invention provides a kind of display device, and it comprises a display panel and a data drive circuit.Wherein, The picture element arrangement mode of display panel can be one dimension matrix or two-dimensional matrix pattern; Data drive circuit is through the electric connection of a plurality of data lines and display panel, and data drive circuit has a displacement temporary storage unit, accurate offset units and a sampling keeping unit.Wherein, displacement temporary storage unit receives a clock signal and at least one input signal of video signal, and produces an output image signal.Position accurate offset units and displacement temporary storage unit electrically connect, and reception and produce a control signal according to output image signal.Sampling keeping unit electrically connects with the accurate offset units in position and a plurality of data line respectively, and receives and according to a control signal and an input position calibration signal, produce a plurality of shows signal to display panel.
For reaching above-mentioned purpose, the present invention provides a kind of method for controlling display device, and wherein display device has a display panel and a data drive circuit, and data drive circuit has a displacement temporary storage unit, accurate offset units and a sampling keeping unit.Method for controlling display device comprises the following step: import a clock signal and at least one input signal of video signal to displacement temporary storage unit; Produce the accurate offset units in an output image signal to position by this displacement temporary storage unit according to the input signal of video signal; Produce one by the accurate offset units in position according to output image signal and control signal to sampling keeping unit; And receive and produce a plurality of shows signal to display panel according to an input accurate position signal and control signal by sampling keeping unit.
Hold the above, according to data drive circuit of the present invention, display device and method for controlling display device, wherein data drive circuit comprises the accurate offset units of displacement temporary storage unit and position, and exports a plurality of shows signal to display panel.Compare with known technology; Data drive circuit of the present invention and display device need not use first order latch lock unit and second level latch lock unit can handle the input signal of video signal; Therefore; Data drive circuit of the present invention, display device and method for controlling display device can be saved the space, and then save production cost.
Description of drawings
Fig. 1 is one of the data drive circuit of the known display device of a demonstration synoptic diagram;
Fig. 2 is one of the data drive circuit of the known display device of demonstration sequential control figure;
Fig. 3 is for showing one of data drive circuit according to first embodiment of the invention synoptic diagram;
Fig. 4 is for showing one of data drive circuit according to first embodiment of the invention sequential control figure;
Fig. 5 is for showing one of display device according to first embodiment of the invention synoptic diagram;
Fig. 6 is for showing one of control method according to first embodiment of the invention flow chart of steps;
Fig. 7 is for showing one of data drive circuit according to second embodiment of the invention synoptic diagram;
Fig. 8 is for showing one of data drive circuit according to second embodiment of the invention sequential control figure;
Fig. 9 is for showing one of display device according to second embodiment of the invention synoptic diagram; And
Figure 10 is for showing one of control method according to second embodiment of the invention flow chart of steps.
[main element symbol description]
1,3,4: display device
11,31,41: display panel
12,2,2 ', 32,42: data drive circuit
122,22,322,422: displacement temporary storage unit
123,124: latch lock unit
125,23,323,423: the accurate offset units in position
24,424: sampling keeping unit
A 11～A 1N, A 21～A 2N, A 31～A 3N: image data
CK: clock signal
D 01～D 0m, D 11～D 1m: data line
IM 1～IM 3: the signal of video signal line
L 1: the first accurate position
L 2: the second accurate position
L 3: the 3rd accurate position
OE: output enable signal
R 1～R i: working storage
S 01: initial pulse signal
S 02: signal of video signal
S 03: the breech lock enable signal
S 11, S 12, S 13: the input signal of video signal
S 21～S 2m: shows signal
S 31～S 3m: control signal
S L: input position calibration signal
S R1～S RN: the shift register signal
T 01～T 03, T 11～T 17: the time
T a～T m: switch
W01～W03, W11～W14: step
Embodiment
Below will data drive circuit, display device and method for controlling display device according to a plurality of embodiment of the present invention be described with reference to relevant drawings.
First embodiment
Please with reference to shown in Figure 3, the data drive circuit 2 of first embodiment of the invention comprises a displacement temporary storage unit 22 and an accurate offset units 23.Wherein, the position accurate offset units 23 respectively with displacement temporary storage unit 22 and a plurality of data line D 11～D 1mElectrically connect.Wherein, m is the positive integer greater than 1.
Note that said electric connection can be direct electric connection or electrically connects indirectly, and so-called indirect electric connection is meant the meaning that through another element (a for example buffer element) it is electrically connected each other between the two element.
Displacement temporary storage unit 22 comprises a plurality of working storage R 1～R i, and receive at least one input signal of video signal, in the present embodiment, displacement temporary storage unit 22 is imported signal of video signal line IM with three respectively 1～IM 3Electrically connect, to receive three input signal of video signal S 11～S 13, it can form a display frame.Input signal of video signal S 11～S 13Can be as shown in Figure 4, wherein, input signal of video signal S 11Comprise a plurality of image data A 11～A 1N, input signal of video signal S 12Comprise a plurality of image data A 21～A 2N, input signal of video signal S 13Comprise a plurality of image data A 31～A 3N
At this moment, displacement temporary storage unit 22 also receives a clock signal CK, and in the present embodiment, displacement temporary storage unit 22 is in time T 01～T 02Between, it receives input signal of video signal S in regular turn according to clock signal C K 11～S 13
Below, will specify displacement temporary storage unit 22 and receive input signal of video signal S 11～S 13Mode.Displacement temporary storage unit 22 is in time T 01Cooperate clock signal C K and begin to receive input signal of video signal S 11～S 13, at first, displacement temporary storage unit 22 is receiving image data A 11, A 21, A 31After, with image data A 11Be temporary in working storage R 1In, with image data A 21Be temporary in working storage R 2In, with image data A 31Be temporary in working storage R 3In.Along with clock signal C K, image data A 11～A 3NBe stored in shift registor R in regular turn 1～R iIn.
Because, in time T 01～T 02Between, output enable signal OE is with the accurate offset units 23 of close stance, and whereby, the accurate offset units 23 in position can be with working storage R 1～R iIn image data A 11～A 3NConvert respective data lines D to 11～D 1mRequired voltage, and make data line D 11～D 1mThe state that presents low-voltage or suspension joint (floating).
As shown in Figure 4 again, in time T 02～T 03The time, clock signal C K is in a fixing accurate position, for example is the accurate position of a low-voltage, and certainly in different embodiment, clock signal C K also can be the accurate position of a high voltage or is a suspension joint (floating) state, and makes displacement temporary storage unit 22 stop working storage R 1～R iIn shift motion.At this moment, displacement temporary storage unit 22 produces the accurate offset units 23 in output image signal to position, and in this, output image signal comprises image data A 11～A 3NAdjust image data A respectively through the accurate offset units 23 in position 11～A 3NA voltage quasi position.
At this moment, compared to clock signal C K, output enable signal OE is in the accurate position of high voltage.Whereby, the accurate offset units in position 23 receives and according to output enable signal OE, output image signal is transformed into shows signal S 21～S 2mAfterwards, and export corresponding each data line D to 11～D 1mWherein, shows signal S 21～S 2mStandard position be the image that shows according to institute's desire and different accurate positions is arranged, but not in scheming, limited.
Below, please with reference to shown in Figure 5, the display device 3 of first embodiment of the invention comprises a display panel 31 and a data drive circuit 32, and data drive circuit 32 is through a plurality of data line D 11～D 1mElectrically connect with display panel 31.In first embodiment, display panel 31 can be a non-volatile formula display panel.So-called non-volatile formula display panel refers to that display panel 31 has at least two stable states, and can be after removing a power supply, and display panel 31 can maintain the tens of at least milliseconds of this stable state.In addition, the optic regulating material in the display panel 31 can comprise an electrophoresis liquid, an electric moist material, a cholesterol (cholesterol) liquid crystal or a nematic (Nematic) liquid crystal.And in display panel 31, more comprising at least one picture element (not shown), its arrangement mode can be one dimension matrix or two-dimensional matrix pattern.
The accurate offset units 323 of the displacement temporary storage unit 322 of data drive circuit 32 and position is the accurate offset units 23 of displacement temporary storage unit 22 and position of data drive circuit as shown in Figure 32, and its function, circuit and working method repeat no more at this as stated.
At least a portion of the accurate offset units 323 of displacement temporary storage unit 322 and position is arranged on an integrated circuit (intergrated circuit with the single crystal semiconductor technology; IC) in the chip, or be arranged on a same substrate with a polycrystalline technology or an amorphous technology and display panel 31 respectively.At this, amorphous technology can be amorphous silicon film transistor technology or an OTFT technology.
Please with reference to shown in Figure 6, the method for controlling display device of first embodiment of the invention is to be applied to display device as shown in Figure 53.Control method of the present invention comprises step W01 to step W03.
Step W01 is that input one clock signal and at least one input signal of video signal are to displacement temporary storage unit.Step W02 produces the accurate offset units in an output image signal to position by displacement temporary storage unit according to the input signal of video signal.Step W03 produces a plurality of shows signal to display panel by the accurate offset units in position according to output image signal.
Wherein detailed control mode is like the explanation of Fig. 3 to Fig. 5, so no longer give unnecessary details at this.
Second embodiment
The data drive circuit 2 ' of present embodiment is except that the accurate offset units 23 of displacement temporary storage unit 22 described in first embodiment and position; More comprise a sampling keeping unit (sample-holdunit) 24, its at least a portion is made with monocrystalline technology, polycrystalline technology or amorphous technology.Please with reference to shown in Figure 7, sampling keeping unit 24 comprises a plurality of switch T a～T mAnd receive accurate (level) signal S in an input position LWherein, each switch T a～T mRespectively with accurate offset units 23 in position and corresponding data line D 11～D 1mElectrically connect.In a second embodiment, switch T a～T mCan be respectively a transistor.
Please be simultaneously with reference to shown in Figure 8, in time T 11～T 12, displacement temporary storage unit 22 receives input signal of video signal S in regular turn according to clock signal C K 11～S 13, it comprises image data A 11～A 3NAt this moment, output enable signal OE can the accurate offset units 23 of close stance.
In time T 12～T 13, clock signal C K is in a fixing accurate position, and makes displacement temporary storage unit 22 stop working storage R 1～R iIn shift motion.At this moment, the accurate offset units 23 in position receives image data A according to output enable signal OE 11～A 3N, and produce control signal S 31～S 3mTo sampling keeping unit 24.
Sampling keeping unit 24 receives and according to control signal S 31～S 3mAnd input position calibration signal S L, to produce shows signal S 21～S 2mTo data line D 11～D 1mBelow, with the operative scenario that specifies sampling keeping unit 24.
Sampling keeping unit 24 receives input position calibration signal S L, it has first accurate L 1, second accurate L 2And the 3rd accurate L 3, in the present embodiment, input position calibration signal S LWith such as but not limited to time T 11～T 13Have first accurate L 1, in time T 13～T 15Have second accurate L 2, in time T 15～T 17Have the 3rd accurate L 3, wherein, the 3rd accurate L 3Between first accurate L 1And second accurate L 2Between.
As shown in Figure 8, to export when sampling keeping unit 24 and to have first accurate L 1Shows signal S 22The time, in time T 12～T 13In, when clock signal CK is in a fixing accurate position, for example be the accurate position of a low-voltage, and output enable signal OE and control signal S 32The accurate position of output HIGH voltage is with switch T bConducting, and make shows signal S 22Export first accurate L 1
To export when sampling keeping unit 24 and to have second accurate L 2Shows signal S 21The time, in time T 14～T 15In, when clock signal CK is in a fixing accurate position, for example be the accurate position of a low-voltage, and output enable signal OE and control signal S 31The accurate position of output HIGH voltage is with switch T aConducting, and make shows signal S 21Export second accurate L 2
To export when sampling keeping unit 24 and to have the 3rd accurate L 3Shows signal S 2mThe time, in time T 16～T 17In, when clock signal CK is in a fixing accurate position, for example be the accurate position of a low-voltage, and output enable signal OE and control signal S 3mThe accurate position of output HIGH voltage is with switch T mConducting, and make shows signal S 2mExport the 3rd accurate L 3
Please with reference to shown in Figure 9, the display device 4 of second embodiment of the invention comprises a display panel 41 and a data drive circuit 42, and data drive circuit 42 is through a plurality of data line D 11～D 1mElectrically connect with display panel 41.The displacement temporary storage unit 422 of data drive circuit 42, the accurate offset units 423 in position and sampling keeping unit 424 are displacement temporary storage unit 22, the accurate offset units 23 in position and the sampling keeping unit 24 like the described data drive circuit 2 ' of Fig. 7; Its function, circuit and working method repeat no more at this as stated.
Please with reference to shown in Figure 10, the method for controlling display device of second embodiment of the invention is to be applied to display device 4 as shown in Figure 9.Control method of the present invention comprises step W11 to step W14.
Step W11 is that input one clock signal and at least one input signal of video signal are to displacement temporary storage unit.Step W12 is to produce the accurate offset units in an output image signal to position by the accurate offset units in position according to the input signal of video signal.Step W13 is to control signal to sampling keeping unit by the accurate offset units in position according to output image signal output one.Step W14 is to be received also by sampling keeping unit to produce a plurality of shows signal to display panel according to an input accurate position signal and control signal.
Wherein detailed control mode details at the foregoing description, so no longer give unnecessary details at this in the lump.
In sum, according to data drive circuit of the present invention, display device and method for controlling display device, wherein data drive circuit comprises the accurate offset units of displacement temporary storage unit and position, and exports a plurality of shows signal to display panel.Compare with known technology, data drive circuit of the present invention and display device need not use latch lock unit can handle the input signal of video signal, thereby can save the space, and then save production cost.
The above is merely illustrative, but not is restricted.Anyly do not break away from spirit of the present invention and category, and, all should be included in the accompanying claims scope its equivalent modifications of carrying out or change.

Claims (36)

1. data drive circuit comprises:
One displacement temporary storage unit, it receives a clock signal and at least one input signal of video signal, and produces an output image signal; And
An accurate offset units, it electrically connects with this displacement temporary storage unit and a plurality of data line respectively, and this accurate offset units receives this output image signal, and produces a plurality of shows signal to these data lines.
2. data drive circuit as claimed in claim 1, wherein this input signal of video signal comprises a plurality of image datas, and this displacement temporary storage unit receives these image datas in regular turn.
3. data drive circuit as claimed in claim 1, wherein a voltage quasi position of this accurate this output image signal of offset units adjustment.
4. data drive circuit as claimed in claim 1, wherein this accurate offset units also receives an output enable signal, and exports these shows signal to these data lines according to this output enable signal.
5. data drive circuit as claimed in claim 1, wherein at least a portion of this displacement temporary storage unit and this accurate offset units is made with a monocrystalline technology, a polycrystalline technology or an amorphous technology.
6. data drive circuit as claimed in claim 5, wherein this amorphous technology is amorphous silicon film transistor technology or an OTFT technology.
7. data drive circuit comprises:
One displacement temporary storage unit, it receives a clock signal and at least one input signal of video signal, and produces an output image signal;
An accurate offset units, itself and this displacement temporary storage unit electrically connects, and receives and produce a control signal according to this output image signal; And
One sampling keeping unit, it electrically connects with this accurate offset units and a plurality of data line respectively, and receives and according to this control signal and an input position calibration signal, produce a plurality of shows signal to these data lines.
8. data drive circuit as claimed in claim 7, wherein this input signal of video signal comprises a plurality of image datas, and this displacement temporary storage unit receives these image datas in regular turn.
9. data drive circuit as claimed in claim 7, wherein a voltage quasi position of this accurate this output image signal of offset units adjustment.
10. data drive circuit as claimed in claim 7, wherein this accurate offset units also receives an output enable signal, and this controls signal to this sampling keeping unit according to this output enable signal output.
11. data drive circuit as claimed in claim 7, wherein at least a portion of this displacement temporary storage unit, this accurate offset units and this sampling keeping unit is made with a monocrystalline technology, a polycrystalline technology or an amorphous technology.
12. data drive circuit as claimed in claim 11, wherein this amorphous technology is amorphous silicon film transistor technology or an OTFT technology.
13. a display device comprises:
One display panel; And
One data drive circuit, it electrically connects through a plurality of data lines and this display panel, and this data drive circuit has:
One displacement temporary storage unit, it receives a clock signal and at least one input signal of video signal, and produces an output image signal;
An accurate offset units, itself and this displacement temporary storage unit electrically connects, and receives and produce a control signal according to this output image signal; And
One sampling keeping unit, it electrically connects with this accurate offset units and a plurality of data line respectively, and receives and according to this control signal and an input position calibration signal, produce a plurality of shows signal to this display panel.
14. display device as claimed in claim 13, wherein this input signal of video signal comprises a plurality of image datas, and this displacement temporary storage unit receives these image datas in regular turn.
15. display device as claimed in claim 13, wherein a voltage quasi position of this accurate this output image signal of offset units adjustment.
16. display device as claimed in claim 13, wherein this accurate offset units also receives an output enable signal, and produces this control signal according to this output enable signal.
17. display device as claimed in claim 13, wherein at least a portion of this displacement temporary storage unit, this accurate offset units and this sampling keeping unit is made with a monocrystalline technology, a polycrystalline technology or an amorphous technology.
18. display device as claimed in claim 17, wherein this amorphous technology is amorphous silicon film transistor technology or an OTFT technology.
19. display device as claimed in claim 13, wherein this display panel is a non-volatile formula display panel.
20. display device as claimed in claim 19, wherein this non-volatile formula display panel is an electrophoresis type display panel or an electric pulse wet type display panel.
21. a display device comprises:
One display panel; And
One data drive circuit, it electrically connects through a plurality of data lines and this display panel, and this data drive circuit has:
One displacement temporary storage unit, it receives a clock signal and at least one input signal of video signal, and produces an output image signal; And
An accurate offset units, it electrically connects with this displacement temporary storage unit and this display panel respectively, and this accurate offset units receives this output image signal, and produces a plurality of shows signal to this display panel.
22. display device as claimed in claim 21, wherein this input signal of video signal comprises a plurality of image datas, and this displacement temporary storage unit receives these image datas in regular turn.
23. display device as claimed in claim 21, wherein a voltage quasi position of this accurate this output image signal of offset units adjustment.
24. display device as claimed in claim 21, wherein this accurate offset units also receives an output enable signal, and exports these shows signal to this display panel according to this output enable signal.
25. display device as claimed in claim 21, wherein at least a portion of this displacement temporary storage unit and this accurate offset units is made with a monocrystalline technology, a polycrystalline technology or an amorphous technology.
26. display device as claimed in claim 25, wherein this amorphous technology is amorphous silicon film transistor technology or an OTFT technology.
27. display device as claimed in claim 21, wherein this display panel is a non-volatile formula display panel.
28. display device as claimed in claim 27, wherein this non-volatile formula display panel is an electrophoresis type display panel or an electric pulse wet type display panel.
29. a method for controlling display device, this display device have a display panel and a data drive circuit, wherein this data drive circuit has a displacement temporary storage unit and an accurate offset units, and this control method comprises the following step:
Import a clock signal and at least one input signal of video signal to this displacement temporary storage unit;
Produce an output image signal to this accurate offset units by this displacement temporary storage unit according to this input signal of video signal; And
Produce a plurality of shows signal to this display panel by this accurate offset units according to this output image signal.
30. control method as claimed in claim 29, wherein this input signal of video signal comprises a plurality of image datas, and it inputs to this displacement temporary storage unit in regular turn.
31. control method as claimed in claim 29 also comprises the voltage quasi position through this accurate this output image signal of offset units adjustment.
32. control method as claimed in claim 29 also comprises the following step:
Input one outputs enable signal to this accurate offset units; And
This accurate offset units is exported these shows signal to this display panel according to this output enable signal.
33. method for controlling display device; This display device has a display panel and a data drive circuit; Wherein this data drive circuit has a displacement temporary storage unit, accurate offset units and a sampling keeping unit, and this control method comprises the following step:
Import a clock signal and at least one input signal of video signal to this displacement temporary storage unit;
Produce an output image signal to this accurate offset units by this displacement temporary storage unit according to this input signal of video signal;
Control signal to this sampling keeping unit by this accurate offset units according to this output image signal output one; And
Produce a plurality of shows signal to this display panel by this sampling keeping unit reception and according to the accurate signal of an input and this control signal.
34. control method as claimed in claim 33, wherein this input signal of video signal comprises a plurality of image datas, and it inputs to this displacement temporary storage unit in regular turn.
35. control method as claimed in claim 33 also comprises the voltage quasi position through this accurate this output image signal of offset units adjustment.
36. control method as claimed in claim 33 also comprises the following step:
Input one outputs enable signal to this accurate offset units; And
This controls signal to this sampling keeping unit to this accurate offset units according to this output enable signal output.
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