CN101221717A - Flat-panel display device and driving method thereof - Google Patents
Flat-panel display device and driving method thereof Download PDFInfo
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- CN101221717A CN101221717A CNA2008100051690A CN200810005169A CN101221717A CN 101221717 A CN101221717 A CN 101221717A CN A2008100051690 A CNA2008100051690 A CN A2008100051690A CN 200810005169 A CN200810005169 A CN 200810005169A CN 101221717 A CN101221717 A CN 101221717A
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Abstract
A flat panel display comprises a substrate, a plurality of data lines, a plurality of scan lines, a source electrode driver element and a grid electrode driver element. The substrate comprises a pixel array. The plurality of data lines are electrically connected to the pixel array. The plurality of scan lines comprise p groups of scan lines and are electrically connected with the pixel array, and P is a positive integer. In the same group of the scan lines, at least partial scan lines are not adjacent. The source electrode unit is electrically connected to the partial scan lines. The grid electrode driver element comprises p shift register circuits which are respectively used to enable the p groups of scan lines. In a first picture frame period, the p groups of scan lines are enabled by a first group sequence; in a second picture frame period, the p groups of scan lines are enabled by a second group sequence, and the first group sequence is different from the second group sequence.
Description
[technical field]
The invention relates to a kind of flat-panel screens and driving method thereof, particularly relevant for a kind of flat-panel screens and driving method thereof that can promote the image frame quality.
[background technology]
The technical development of flat-panel screens now is rapid, and technology miscellaneous continues to be developed.For reduce integrated circuit (Integrated Circuit, IC) number of signal wire is to save cost, some unconventional panel charging circuit framework has appearred in the technical field of the invention.Yet, in these panel charge constructions,, can cause picture to produce various vestiges (mura), thereby influence the picture image quality because the circuit layout mode of every picture element is different with traditional circuit layout mode.
Fig. 1 is the synoptic diagram of certain conventional liquid crystal.As shown in Figure 1, LCD 100 comprises substrate (not being illustrated in figure), many data line S1 ~ Sm, a plurality of sweep trace G1 ~ G2n, source drive unit 110 and drive element of the grid 120, and m and n are positive integer.Substrate (not being illustrated in figure) comprises a pixel array, and pixel array comprises that (x, y), x and y are positive integer to a plurality of picture element P.(x y) comprises a transistor T to each picture element P.
Now the first row picture element with pixel array is that example is done explanation.At first, sweep trace G1 is enabled, picture element P (1,1), P (3,1), P (5,1) ..., P (2m-1,1) is recharged; Then, sweep trace G2 is enabled, picture element P (2,1), P (4,1), P (6,1) ..., P (2m, 1) is recharged.At this moment because the existence of capacitance coupling effect, make picture element P (1,1), P (3,1), P (5,1) ..., P (2m-1,1) is subjected to the influence of capacitance coupling effect and changes its pixel voltages.Thus, the charging degree of coupling of odd-numbered line picture element and even number line picture element is inconsistent, causes image frame to cause vestige phenomenon on the vertical direction because of brightness disproportionation.
[summary of the invention]
The present invention is relevant for a kind of flat-panel screens and driving method thereof, the multi-strip scanning line of flat-panel screens is divided into different groups, then in different picture frames in the cycle, utilize a plurality of shift registor circuit, with the different group sweep trace of the corresponding group of activation in proper order respectively, to reduce the vestige phenomenon of image frame.
According to a technology sample attitude of the present invention, a kind of flat-panel screens is proposed, comprise substrate, many data lines, a plurality of sweep trace, source drive unit and drive element of the grid.Substrate comprises a pixel array.Many data line is electrically connected to pixel array.A plurality of sweep traces are electrically connected to pixel array, and these a little sweep traces comprise a plurality of odd number bar sweep traces and a plurality of even number bar sweep trace.The source drive unit is electrically connected to data line.Drive element of the grid comprises the first shift registor circuit and the second shift registor circuit, and the first shift registor circuit is in order to activation odd number bar sweep trace in regular turn, and the second shift registor circuit is in order to activation even number bar sweep trace in regular turn.In cycle, odd number bar sweep trace is enabled in regular turn prior to even number bar sweep trace in first picture frame, and odd number bar sweep trace and even number bar sweep trace are enabled alternately.In cycle, even number bar sweep trace is enabled in regular turn prior to odd number bar sweep trace in second picture frame, and odd number bar sweep trace and even number bar sweep trace are enabled alternately.
According to another technology sample attitude of the present invention, a kind of planar display driving method is proposed.Flat-panel screens comprises substrate, many data lines, a plurality of sweep trace, source drive unit and drive element of the grid.Substrate comprises a pixel array.Many data lines and multi-strip scanning line are electrically connected to pixel array, and these a little sweep traces comprise a plurality of odd number bar sweep traces and a plurality of even number bar sweep trace.The source drive unit electrically connects so far a little data lines.Drive element of the grid comprises the first shift registor circuit and the second shift registor circuit, and the first shift registor circuit is in order to activation odd number bar sweep trace in regular turn, and the second shift registor circuit is in order to activation even number bar sweep trace in regular turn.Planar display driving method comprises: at first in first picture frame in the cycle, and activation odd number bar sweep trace and even number bar sweep trace alternately, wherein odd number bar sweep trace is enabled in regular turn prior to even number bar sweep trace; Afterwards, in second picture frame in the cycle, activation odd number bar sweep trace and even number bar sweep trace alternately, wherein even number bar sweep trace is enabled in regular turn prior to odd number bar sweep trace.
According to another technology sample attitude of the present invention, a kind of flat-panel screens is proposed, comprise substrate, many data lines, multi-strip scanning line, source drive unit and drive element of the grid.Substrate comprises a pixel array.Many data line is electrically connected to pixel array.A plurality of sweep traces comprise p group scan line, are electrically connected to pixel array, and p is a positive integer.In the same group scan line, non-conterminous to the sweep trace of small part.The source drive unit electrically connects so far a little data lines.Drive element of the grid comprises p shift registor circuit, respectively in order to activation p group scan line.In cycle, p group scan line is enabled in proper order with first group in first picture frame, and in the cycle, p group scan line is enabled in proper order with second group in second picture frame, and first group is different from second group order in proper order.
According to a technology sample attitude more of the present invention, a kind of planar display driving method is proposed.Flat-panel screens comprises substrate, many data lines, a plurality of sweep trace, source drive unit and drive element of the grid.Substrate comprises a pixel array.Many data lines and multi-strip scanning line are electrically connected to pixel array, and these a little sweep traces comprise p group scan line, and are non-conterminous to the sweep trace of small part in the same group scan line, and p is a positive integer.The source drive unit electrically connects so far a little data lines.Drive element of the grid comprises p shift registor circuit, respectively in order to activation p group scan line.Planar display driving method comprises: at first in first picture frame in the cycle, with the order activation p of first group group scan line; Afterwards, in the cycle, with the order activation p of second group group scan line, second group is different from first group order in proper order in second picture frame.
According to another technology sample attitude of the present invention, a kind of flat-panel screens is proposed, comprise substrate, many data lines, a plurality of sweep trace, source drive unit and drive element of the grid.Substrate comprises a pixel array.Many data line is electrically connected to pixel array.A plurality of sweep traces are electrically connected to pixel array, and these a little sweep traces comprise a plurality of odd number bar sweep traces and a plurality of even number bar sweep trace.The source drive unit electrically connects so far a little data lines.Drive element of the grid comprises the first shift registor circuit and the second shift registor circuit.The first shift registor circuit is in order to according to first start signal, first clock signal and first delay clock signals activation odd number bar sweep trace in regular turn, and the second shift registor circuit is in order to according to second start signal, second clock signal and second delay clock signals activation even number bar sweep trace in regular turn.In cycle, the phase place of first start signal, first clock signal and first delay clock signals is led over the phase place of second start signal, second clock signal and second delay clock signals respectively in first picture frame.In cycle, the phase place of second start signal, second clock signal and second delay clock signals is led over the phase place of first start signal, first clock signal and first delay clock signals respectively in second picture frame.
For foregoing of the present invention can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
[description of drawings]
Fig. 1 is the synoptic diagram of certain conventional liquid crystal.
Fig. 2 A is the synoptic diagram of LCD first embodiment of the present invention.
LCD first embodiment illustrates the signal waveforms that drives shift registor according to the present invention in Fig. 2 B system.
Fig. 2 C is the signal waveforms that LCD first embodiment illustrates the driven sweep line according to the present invention.
LCD first embodiment illustrates another signal waveforms that drives shift registor according to the present invention in Fig. 2 D system.
Fig. 2 E is another signal waveforms that LCD first embodiment illustrates the driven sweep line according to the present invention.
Fig. 3 is the driving method process flow diagram of flat-panel screens first embodiment of the present invention.
Fig. 4 A is the synoptic diagram of LCD second embodiment of the present invention.
LCD second embodiment illustrates the signal waveforms that drives shift registor according to the present invention in Fig. 4 B system.
LCD second embodiment illustrates the signal waveforms of driven sweep line to Fig. 4 C according to the present invention.
LCD second embodiment illustrates another signal waveforms that drives shift registor according to the present invention in Fig. 4 D system.
LCD second embodiment illustrates another signal waveforms of driven sweep line to Fig. 4 E according to the present invention.
Fig. 5 is the driving method process flow diagram of flat-panel screens second embodiment of the present invention.
[embodiment]
The invention provides a kind of flat-panel screens and driving method thereof, the multi-strip scanning line of flat-panel screens is divided into different groups, then in different picture frames in the cycle, utilize a plurality of shift registor circuit in the drive element of the grid, distinguish the sweep trace of the corresponding group of activation in regular turn with a plurality of different groups in proper order.The flat-panel screens of various embodiments of the present invention is that example is done explanation with the LCD, so is not limited to this, and the display of other kinds is also applicable.
First embodiment
Fig. 2 A is the synoptic diagram of LCD first embodiment of the present invention.Shown in Fig. 2 A, LCD 200 comprises substrate (not being illustrated in figure), many data line S1 ~ Sm, multi-strip scanning line G1 ~ G2n, source drive unit 210 and drive element of the grid 220, and m and n are positive integer.Substrate for example is a glass substrate, and it comprises pixel array 230.Pixel array 230 comprise a plurality of picture element P (x, y), x and y are positive integer, each picture element comprises a transistor T.In the flat-panel screens 200, each bar data line S1 ~ Sm for example electrically connects with two transistors of adjacent two picture elements of each row picture element.
Many data line S1 ~ Sm system is electrically connected to pixel array 230.Multi-strip scanning line G1 ~ G2n system is electrically connected to pixel array 230, these a little sweep trace G1 ~ G2n comprise a plurality of odd number bar sweep trace G1, G3, G5 ..., G2n-1 and a plurality of even number bar sweep trace G2, G4, G6 ..., G2n.Source drive unit 210 is to be electrically connected to data line S1 ~ Sm.
Drive element of the grid 220 can be configured in substrate on, also can directly on substrate, form.Drive element of the grid 220 comprises the first shift registor circuit 222 and the second shift registor circuit 224, the first shift registor circuit 222 be in order to according to the first start signal ST1, the first clock signal C K1 and the first delay clock signals XCK1 in regular turn activation odd number bar sweep trace G1, G3, G5 ..., G2n-1, wherein the phase place of the first delay clock signals XCK1 is than phase delay 180 degree of the first clock signal C K1.The second shift registor circuit 224 be in order to according to the second start signal ST2, second clock signal CK2 and the second delay clock signals XCK2 in regular turn activation even number bar sweep trace G2, G4, G6 ..., G2n, wherein the phase place of the second delay clock signals XCK2 is than phase delay 180 degree of second clock signal CK2.
Fig. 2 B is that LCD first embodiment illustrates the signal waveforms that drives shift registor according to the present invention.In Fig. 2 B, as can be known,, can reach the purpose of distinguishing the sweep trace of the corresponding group of activation in regular turn with different groups in proper order by the sequential that changes a plurality of control signal ST1/CK1/XCK1 and ST2/CK2/XCK2.For example in Fig. 2 B, in the first picture frame cycle, the phase place of control signal ST1/CK1/XCK1 system leads over the phase place of control signal ST2/CK2/XCK2 respectively; In the second picture frame cycle, the phase place of control signal ST2/CK2/XCK2 system leads over the phase place of control signal ST1/CK1/XCK1 respectively.Thus, a plurality of shift registor circuit can use identical circuit, make the drive element of the grid framework simplify, and reduce cost.
Fig. 2 C is the signal waveforms that LCD first embodiment illustrates the driven sweep line according to the present invention.Shown in Fig. 2 C, in first picture frame in the cycle, odd number bar sweep trace G1, G3, G5 ..., G2n-1 and even number bar sweep trace G2, G4, G6 ..., 62n system is enabled alternately, that is sweep trace G1, sweep trace G2, sweep trace G3, sweep trace G4 ..., sweep trace G2n-1 and sweep trace G2n system is enabled in regular turn.
In second picture frame in the cycle, sweep trace G2, sweep trace G1, sweep trace G4, sweep trace G3 ..., sweep trace G2n and sweep trace G2n-1 system is enabled in regular turn.Because odd number bar sweep trace G1, G3, G5 ..., G2n-1 and even number bar sweep trace G2, G4, G6 ..., G2n lies in the different picture frame cycles and is enabled in proper order according to different groups, so the charging degree of coupling of each picture element reaches unanimity, whole brightness becomes more even, can reduce vestige (mura) phenomenon of image frame.
Now the first row picture element with pixel array 230 is that example is done explanation.In the first picture frame cycle, G1 is enabled when sweep trace, picture element P (1,1), P (3,1), P (5,1) ..., P (2m-1,1) is recharged, this moment, picture element P (2,1), P (4,1), P (6,1) ..., P (2m, 1) pixel voltages change because of the influence of capacitance coupling effect.Then, sweep trace G2 is enabled, picture element P (2,1), P (4,1), P (6,1) ..., P (2m, 1) is recharged picture element P (2,1), P (4,1), P (6,1) ..., P (2m, 1) pixel voltages be updated and eliminated the influence of the capacitance coupling effect when sweep trace G1 is enabled immediately.Yet, when sweep trace G2 is enabled, picture element P (1,1), P (3,1), P (5,1) ..., P (2m-1,1) the pixel voltages that has received will change because of the influence of capacitance coupling effect, and keep a picture frame cycle.
In the second picture frame cycle, G2 is enabled when sweep trace, picture element P (2,1), P (4,1), P (6,1) ..., P (2m, 1) is recharged, and makes picture element P (1,1), P (3,1), P (5,1) ..., P (2m-1,1) pixel voltages change because of the influence of capacitance coupling effect.Then, sweep trace G1 is enabled, picture element P (1,1), P (3,1), P (5,1) ..., P (2m-1,1) is recharged picture element P (1,1), P (3,1), P (5,1) ..., P (2m-1,1) pixel voltages be updated and eliminated the influence of capacitance coupling effect when sweep trace G2 is enabled immediately.Yet, when sweep trace G1 is enabled, picture element P (2,1), P (4,1), P (6,1) ..., P (2m, 1) pixel voltages change because of the influence of capacitance coupling effect, and keep a picture frame cycle.
Know by inference by above-mentioned, odd-numbered line picture element P (1,1), P (3,1), P (5,1) ..., P (2m-1,1) is subjected to the influence of capacitance coupling effect in the first picture frame cycle, and even number line picture element P (2,1), P (4,1), P (6,1) ..., P (2m, 1) is subjected to the influence of capacitance coupling effect in the second picture frame cycle.Therefore through the first picture frame cycle and all after dates of second picture frame, first row picture element P (1,1) ~ P (2m, 1) all can be subjected to the influence of coupling effect of charging, and the degree that is affected system is consistent haply.Similarly, it is also all similar with the first row picture element that other row picture elements are subjected to the effect of capacitance coupling effect.Therefore, when the user watches, the different and vestige phenomenon that has luminance difference to cause of the influence that can't perceive capacitance coupling effect between the different rows.
In conventional liquid crystal 100, when sweep trace G1 is enabled, picture element P (2,1), P (4,1), P (6,1) ..., P (2m, 1) pixel voltages change because of the influence of capacitance coupling effect.When sweep trace G2 is enabled, picture element P (2,1), P (4,1), P (6,1) ..., P (2m, 1) pixel voltages is updated and has eliminated the influence of capacitance coupling effect, but picture element P (1,1), P (3,1), P (5,1) ..., P (2m-1,1) pixel voltages but change because of the influence of capacitance coupling effect, and keep a picture frame cycle.In conventional liquid crystal 100, only there is the pixel voltages that is influenced by capacitance coupling effect of odd-numbered line picture element can keep the whole picture frame cycle, so only have the odd-numbered line picture element to have the phenomenon of color displacement, and cause having on LCD 100 vertical direction vestige phenomenon to produce.Yet, in the present embodiment, because the coupling effect effect of being charged of each row picture element of LCD 200 is consistent haply, so the vestige phenomenon that does not have on the vertical direction produces.
In addition, except the activation order of every adjacent picture frame cyclomorphosis odd number bar sweep trace and even number bar sweep trace, the activation that can also just change odd number bar sweep trace and even number bar sweep trace whenever adjacent two picture frame cycles and is not limited to this in proper order.
LCD first embodiment illustrates another signal waveforms that drives shift registor according to the present invention in Fig. 2 D system.The waveform of control signal ST1/CK1/XCK1 and ST2/CK2/XCK2 is same as Fig. 2 B in fact, but per two picture frame cycles just change once.
Fig. 2 E is another signal waveforms that LCD first embodiment illustrates the driven sweep line according to the present invention.The first picture frame cycle, the second picture frame cycle, the 3rd picture frame cycle and the adjacent in regular turn arrangement of the 4th picture frame periodic system.In the first picture frame cycle, sweep trace G1, sweep trace G2, sweep trace G3, sweep trace G4 ..., sweep trace G2n-1 and sweep trace G2n system is enabled in regular turn.Then, in the second picture frame cycle and the 3rd picture frame cycle, sweep trace G2, sweep trace G1, sweep trace G4, sweep trace G3 ..., sweep trace G2n and sweep trace G2n-1 system is enabled in regular turn.Afterwards, in the 4th picture frame cycle, sweep trace G1, sweep trace G2, sweep trace G3, sweep trace G4 ..., sweep trace G2n-1 and sweep trace G2n system is enabled in regular turn.
In addition, shown in Fig. 2 A, LCD 200 is start signal (start pulse), clock signal (clock pulse) and the delay clock signals that utilizes control drive element of the grid 220 to be received, reach the purpose of distinguishing the sweep trace of the corresponding group of activation in regular turn with a plurality of different groups in proper order, but can also utilize other method, the present invention is not limited to this.
The present invention also discloses a kind of planar display driving method, and this flat-panel screens comprises a substrate, many data lines, a plurality of sweep trace, one source pole driver element and drive element of the grid.Substrate is a glass substrate for example, comprises a pixel array.Pixel array comprises a plurality of picture elements, and each picture element comprises a transistor, and two transistors of adjacent two picture elements of each bar data linear system and each row picture element electrically connect.
Data line and sweep trace are electrically connected to pixel array.Sweep trace comprises a plurality of odd number bar sweep traces and a plurality of even number bar sweep trace.The source drive unit is electrically connected to data line.Drive element of the grid can be configured on the substrate or directly be formed on the substrate, this drive element of the grid comprises the first shift registor circuit and the second shift registor circuit, the first shift registor circuit is in order to activation odd number bar sweep trace in regular turn, and the second shift registor circuit is in order to activation even number bar sweep trace in regular turn.
Fig. 3 is the driving method process flow diagram of flat-panel screens first embodiment of the present invention.At first, in step 300, in first picture frame in the cycle, a plurality of odd number bar sweep trace of activation alternately and a plurality of even number bar sweep trace, wherein odd number bar scanning linear system is enabled in regular turn prior to even number bar sweep trace.Afterwards, in step 310, in second picture frame in the cycle, a plurality of odd number bar sweep trace of activation alternately and a plurality of even number bar sweep trace, wherein even number bar scanning linear system is enabled in regular turn prior to odd number bar sweep trace.
About above-mentioned planar display driving method, its principle of operation has been specified in the related description of LCD 200, so no longer repeat in this.
Second embodiment
Fig. 4 A is the synoptic diagram of LCD second embodiment of the present invention.LCD 400 comprises substrate (not being illustrated in figure), many data line S1 ~ Sm, multi-strip scanning line G1 ~ G2n, source drive unit 410 and drive element of the grid 420, and m and n are positive integer.Substrate for example is a glass substrate, and it comprises pixel array 430.Pixel array 430 comprises a plurality of picture elements, and each picture element comprises a transistor (not being illustrated in figure).In the LCD 400, each bar data line S1 ~ Sm for example electrically connects with p transistor of each row picture element, and p is a positive integer.
Many data line S1 ~ Sm system is electrically connected to pixel array 430.Multi-strip scanning line G1 ~ G2n system is electrically connected to pixel array 430, and these a little sweep trace G1 ~ G2n comprise p group scan line, and wherein scanning linear system at least partly is non-conterminous.Source drive unit 410 is to be electrically connected to data line S1 ~ Sm.Drive element of the grid 420 comprises the first shift registor circuit, 421 ~ the p shift registor circuit 42p, respectively in order to activation p group scan line.
In cycle, p group scan linear system is enabled in proper order with first group in first picture frame.Then, in second picture frame in the cycle of first picture frame week after date, p group scan linear system is enabled in proper order with second group, and first group is different from second group order.Perhaps, in the 3rd picture frame in the cycle of second picture frame week after date, p group scan linear system is enabled in proper order with the 3rd group, and the 3rd group is different from first group order and second group order.In addition, can also just change group's order that p group scan line is enabled in regular turn whenever adjacent a plurality of picture frame cycles.
Next be to lift p to equal 3 and do explanation for example.Please refer to Fig. 4 B and Fig. 4 C, LCD second embodiment illustrates the signal waveforms that drives shift registor according to the present invention for Fig. 4 B system, and then LCD second embodiment illustrates the signal waveforms of driven sweep line to Fig. 4 C according to the present invention.In first picture frame in the cycle, three shift registor circuit systems are with the order activation three group scan lines of first group, second group and the 3rd group.Then, in second picture frame in the cycle of first picture frame week after date, three shift registor circuit systems are with the order activation three group scan lines of second group, the 3rd group and first group.In the 3rd picture frame in the cycle of second picture frame week after date, three shift registor circuit systems are with the order activation three group scan lines of the 3rd group, first group and second group.Though present embodiment is example with p=3, the present invention is not limit by this, and p also can be other positive integers; In addition, also can change arbitrarily, be not limited in the order that the foregoing description is lifted in the order that the sweep trace of a picture frame in the cycle is enabled.
In addition, can also just change the activation order of a distinct group sweep trace whenever adjacent two picture frame cycles, please refer to Fig. 4 D and Fig. 4 E, LCD second embodiment illustrates another signal waveforms that drives shift registor according to the present invention for Fig. 4 D system, and then LCD second embodiment illustrates another signal waveforms of driven sweep line to Fig. 4 E according to the present invention.In the first adjacent picture frame cycle and second picture frame in the cycle, three shift registor circuit systems are with the order activation three group scan lines of first group, second group and the 3rd group.Then, in the 3rd adjacent picture frame cycle and the 4th picture frame in the cycle of second picture frame week after date, three shift registor circuit systems are with the order activation three group scan lines of second group, the 3rd group and first group.In the 5th adjacent picture frame cycle and the 6th picture frame in the cycle of the 4th picture frame week after date, three shift registor circuit systems are with the order activation three group scan lines of the 3rd group, first group and second group.
The detailed operation principle system of LCD 400 is similar to the related description of LCD 200, so no longer repeat in this.
The present invention also discloses another kind of planar display driving method, and this flat-panel screens comprises a substrate, many data lines, a plurality of sweep trace, one source pole driver element and drive element of the grid.Substrate comprises a pixel array.Many data lines and multi-strip scanning line are electrically connected to pixel array.These a little sweep traces comprise p group scan line, and non-conterminous to the scanning linear system of small part in the same group scan line, p is a positive integer.The source drive unit electrically connects so far a little data lines.Drive element of the grid comprises p shift registor circuit, respectively in order to activation p group scan line.
Fig. 5 is the driving method process flow diagram of flat-panel screens second embodiment of the present invention.At first, in step 500, in first picture frame in the cycle, with the order activation p of first group group scan line.Afterwards, in step 520, in the cycle, with the order activation p of second group group scan line, second group is different from first group order in second picture frame.
The principle of operation of above-mentioned planar display driving method has been described in the related description of LCD 400, so no longer repeat in this.
In addition, the time of the pulse wave activation of a plurality of control signal ST1/CK1/XCK1 and ST2/CK2/XCK2 can also overlap (overlap), so that the pulse wave of the sweep signal of adjacent scanning lines can part overlap.Thus, the picture element in the pixel array will have the precharge time, so that each picture element shows desired brightness apace, make LCD 200 or 400 can have higher brightness.
Disclosed flat-panel screens of the above embodiment of the present invention and driving method thereof, it is in fact charging circuit framework according to the pixel array of flat-panel screens, the multi-strip scanning line of flat-panel screens is divided into different groups, and with a plurality of shift registor circuit of configuration in the drive element of the grid.Thus, can be in the cycle in different picture frames, utilize a plurality of shift registor circuit in the drive element of the grid, distinguish the sweep trace of the corresponding group of activation in regular turn in proper order with a plurality of different groups, make the charging degree of coupling of each picture element reach unanimity, it is average than conventional practice that each picture element is subjected to the influence of capacitance coupling effect, to reduce the vestige phenomenon of image frame effectively.
In addition, a plurality of shift registor circuit also can use identical circuit, and as long as change the clock signal of a plurality of shift registor circuit of control and the sequential of start signal, can reach above-mentioned effect.Therefore, the present invention has circuit hardware simplicity of design, and control signal is simple, and the advantage that can effectively reduce cost.
In sum, though the present invention discloses as above with preferred embodiment, so it is not in order to limit the present invention.Any have a technical field of the invention know the knowledgeable usually, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.
Claims (20)
1. flat-panel screens comprises:
One substrate comprises a pixel array;
Many data lines are electrically connected to this pixel array;
A plurality of sweep traces are electrically connected to this pixel array, and described sweep trace comprises a plurality of odd number bar sweep traces and a plurality of even number bar sweep trace;
The one source pole driver element is electrically connected to described data line; And
One drive element of the grid, comprise one first shift registor circuit and one second shift registor circuit, this first shift registor circuit is in order to the described odd number bar of activation in regular turn sweep trace, and this second shift registor circuit is in order to the described even number bar of activation in regular turn sweep trace;
Wherein, in the cycle, described odd number bar sweep trace is enabled in regular turn prior to described even number bar sweep trace in one first picture frame, and described odd number bar sweep trace and described even number bar sweep trace are enabled alternately;
Wherein, in the cycle, described even number bar sweep trace is enabled in regular turn prior to described odd number bar sweep trace in one second picture frame, and described odd number bar sweep trace and described even number bar sweep trace are enabled alternately.
2. flat-panel screens according to claim 1, it is characterized in that, described sweep trace comprise this article one sweep trace, this second sweep trace ..., this 2n bar sweep trace, in this first picture frame cycle, this article one sweep trace, this second sweep trace ..., this 2n-1 bar sweep trace and this 2n bar sweep trace be enabled in regular turn, and in this second picture frame cycle, this second sweep trace, this article one sweep trace ... the 2nd n bar sweep trace, this 2n-1 bar sweep trace are enabled in regular turn.
3. flat-panel screens according to claim 1, it is characterized in that, in one the 3rd picture frame in the cycle, this even number bar sweep trace is enabled in regular turn prior to this odd number bar sweep trace, and described odd number bar sweep trace and described even number bar sweep trace are enabled alternately, and in one the 4th picture frame in the cycle, this odd number bar sweep trace is enabled in regular turn prior to this even number bar sweep trace, and described odd number bar sweep trace and described even number bar sweep trace are enabled alternately, this first, this second, the 3rd, and adjacent in regular turn arrangement of the 4th picture frame cycle.
4. flat-panel screens according to claim 1 is characterized in that this pixel array comprises a plurality of picture elements, and each picture element comprises a transistor, and two transistors of adjacent two picture elements of each bar data line and each row picture element electrically connect.
5. planar display driving method, this flat-panel screens comprises a substrate, many data lines, a plurality of sweep traces, an one source pole driver element and a drive element of the grid, this substrate comprises a pixel array, described data line and described sweep trace are electrically connected to this pixel array, described sweep trace comprises a plurality of odd number bar sweep traces and a plurality of even number bar sweep trace, this source drive unit is electrically connected to described data line, this drive element of the grid comprises one first shift registor circuit and one second shift registor circuit, this first shift registor circuit is in order to the described odd number bar of activation in regular turn sweep trace, this second shift registor circuit is in order to the described even number bar of activation in regular turn sweep trace, and this planar display driving method comprises:
In one first picture frame in the cycle, described odd number bar sweep trace of activation alternately and described even number bar sweep trace, wherein said odd number bar sweep trace is enabled in regular turn prior to described even number bar sweep trace; And
In one second picture frame in the cycle, described odd number bar sweep trace of activation alternately and described even number bar sweep trace, wherein said even number bar sweep trace is enabled in regular turn prior to described odd number bar sweep trace.
6. planar display driving method according to claim 5, it is characterized in that, described sweep trace comprise this article one sweep trace, this second sweep trace ..., this 2n bar sweep trace, in this first picture frame cycle, this article one sweep trace of activation in regular turn, this second sweep trace ..., this 2n-1 bar sweep trace and this 2n bar sweep trace, and in this second picture frame cycle, this second sweep trace of activation in regular turn, this article one sweep trace ... this 2n bar sweep trace and this 2n-1 bar sweep trace.
7. planar display driving method according to claim 5 is characterized in that other comprises:
In one the 3rd picture frame in the cycle, described odd number bar sweep trace of activation alternately and described even number bar sweep trace, wherein said even number bar sweep trace is enabled in regular turn prior to described odd number bar sweep trace; And
In one the 4th picture frame cycle, described odd number bar sweep trace of activation alternately and described even number bar sweep trace, wherein said odd number bar sweep trace is enabled in regular turn prior to described even number bar sweep trace;
Wherein, this first, this second, the 3rd, and the 4th picture frame cycle arrange in regular turn.
8. planar display driving method according to claim 5 is characterized in that this pixel array comprises a plurality of picture elements, and each picture element comprises a transistor, and two transistors of adjacent two picture elements of each bar data line and each row picture element electrically connect.
9. flat-panel screens comprises:
One substrate comprises a pixel array;
Many data lines are electrically connected to this pixel array;
A plurality of sweep traces comprise p group scan line, are electrically connected to this pixel array, and are non-conterminous to the sweep trace of small part in the same group scan line, and p is a positive integer;
The one source pole driver element is electrically connected to described data line; And
One drive element of the grid comprises p shift registor circuit, respectively in order to this p group scan line of activation;
Wherein, in the cycle, this p group scan line is enabled in proper order with first group in one first picture frame, and in the cycle, this p group scan line is enabled in proper order with one second group in one second picture frame, and this first group is different from this second group order in proper order.
10. flat-panel screens according to claim 9 is characterized in that, this first picture frame cycle and this second picture frame cycle arrange in regular turn.
11. flat-panel screens according to claim 9 is characterized in that, in every adjacent two picture frame cycles, the order that this p group scan line is enabled does not change.
12. flat-panel screens according to claim 9 is characterized in that, this pixel array comprises a plurality of picture elements, and each picture element comprises a transistor, and p transistor of each bar data line and each row picture element electrically connects.
13. planar display driving method, this flat-panel screens comprises a substrate, many data lines, a plurality of sweep traces, an one source pole driver element and a drive element of the grid, this substrate comprises a pixel array, described data line and described sweep trace are electrically connected to this pixel array, described sweep trace comprises p group scan line, in the same group scan line, sweep trace to small part is non-conterminous, p is a positive integer, this source drive unit is electrically connected to described data line, this drive element of the grid comprises p shift registor circuit, and in order to this p group scan line of activation, this planar display driving method comprises respectively:
In one first picture frame in the cycle, with first group this p group scan line of order activation; And
In cycle, with one second group this p group scan line of order activation, this second group is different from this first group order in proper order in one second picture frame.
14. planar display driving method according to claim 13 is characterized in that, this first picture frame cycle and this second picture frame cycle arrange in regular turn.
15. planar display driving method according to claim 13 is characterized in that, in every adjacent two picture frame cycles, the order that this p group scan line is enabled does not change.
16. planar display driving method according to claim 13 is characterized in that, this pixel array comprises a plurality of picture elements, and each picture element comprises a transistor, and p transistor of each bar data line and each row picture element electrically connects.
17. planar display driving method according to claim 13 is characterized in that, other comprises:
In cycle, with one the 3rd group this p group scan line of order activation, the 3rd group is different from this first group order and this second group order in proper order in one the 3rd picture frame.
18. a flat-panel screens comprises:
One substrate comprises a pixel array;
Many data lines are electrically connected to this pixel array;
A plurality of sweep traces are electrically connected to this pixel array, and described sweep trace comprises a plurality of odd number bar sweep traces and a plurality of even number bar sweep trace;
The one source pole driver element is electrically connected to described data line; And
One drive element of the grid, comprise one first shift registor circuit and one second shift registor circuit, this first shift registor circuit is in order to foundation one first start signal, one first clock signal and the described odd number bar of one first delay clock signals activation in regular turn sweep trace, and this second shift registor circuit is in order to foundation one second start signal, a second clock signal and the described even number bar of one second delay clock signals activation in regular turn sweep trace;
Wherein, in the cycle, the phase place of this first start signal, this first clock signal and this first delay clock signals is led over the phase place of this second start signal, this second clock signal and this second delay clock signals respectively in one first picture frame;
Wherein, in the cycle, the phase place of this second start signal, this second clock signal and this second delay clock signals is led over the phase place of this first start signal, this first clock signal and this first delay clock signals respectively in one second picture frame.
19. flat-panel screens according to claim 18 is characterized in that, the phase place of this first delay clock signals is than phase delay 180 degree of this first clock signal, and the phase place of this second delay clock signals is than phase delay 180 degree of this second clock signal.
20. flat-panel screens according to claim 18 is characterized in that, this first shift registor circuit and this second shift registor circuit have identical circuit.
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| CN2008100051690A CN101221717B (en) | 2008-01-24 | 2008-01-24 | Flat-panel display device and driving method thereof |
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| CN2008100051690A CN101221717B (en) | 2008-01-24 | 2008-01-24 | Flat-panel display device and driving method thereof |
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| CN103472639A (en) * | 2012-06-06 | 2013-12-25 | 群康科技(深圳)有限公司 | Displayer and driving method thereof |
| CN104700810A (en) * | 2013-06-06 | 2015-06-10 | 青岛海信电器股份有限公司 | Display device, time sequence controller and image display method |
| CN104700808A (en) * | 2013-06-06 | 2015-06-10 | 青岛海信电器股份有限公司 | Display device, time sequence controller and image display method |
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| CN1499824A (en) * | 2002-11-04 | 2004-05-26 | 李治福 | Method for raising quality of image on liquid crystal display device |
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| CN1779770B (en) * | 2004-11-19 | 2010-10-13 | 中华映管股份有限公司 | Planar displaying device and grid driving method thereof |
| CN100492114C (en) * | 2007-03-28 | 2009-05-27 | 友达光电股份有限公司 | Field order type liquid crystal display device driving method |
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| CN103472639A (en) * | 2012-06-06 | 2013-12-25 | 群康科技(深圳)有限公司 | Displayer and driving method thereof |
| CN103472639B (en) * | 2012-06-06 | 2016-03-09 | 群康科技(深圳)有限公司 | Display and driving method thereof |
| CN104700810A (en) * | 2013-06-06 | 2015-06-10 | 青岛海信电器股份有限公司 | Display device, time sequence controller and image display method |
| CN104700808A (en) * | 2013-06-06 | 2015-06-10 | 青岛海信电器股份有限公司 | Display device, time sequence controller and image display method |
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