CN1797140A - LCD faceplate of active matrix, and driving method - Google Patents
LCD faceplate of active matrix, and driving method Download PDFInfo
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- CN1797140A CN1797140A CN 200410091968 CN200410091968A CN1797140A CN 1797140 A CN1797140 A CN 1797140A CN 200410091968 CN200410091968 CN 200410091968 CN 200410091968 A CN200410091968 A CN 200410091968A CN 1797140 A CN1797140 A CN 1797140A
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Abstract
The invention discloses an active matrix LCD panel and the driving method thereof. And the LCD panel comprises plural rows of scanning lines, plural columns of data lines, plural liquid crystal pixels at the intersects of the scanning and data lines, plural scanning signal chips, plural data signal chips, and plural black inserting signal chips, where the scanning signal chips continuously generate plural scanning signal groups within a frame period, including a data display-scan signal and a black insert-scan signal and in turn provide them for the scanning lines, the data signal chips provide data signals for the data lines to make the pixels display image data, as the scanning signal chips provide the data display-scan signal for the scanning lines, and the black inserting signal chips provide a black inserting signal for the data lines to make pixels display black states, as the scanning signal chips provide the insert-scan signal for the scanning lines.
Description
[technical field]
The present invention relates to a kind of matrix liquid crystal display panel and driving method thereof, relate in particular to a kind of initiative matrix liquid crystal display panel and driving method thereof that can make picture show no smear.
[background technology]
Because advantages such as display panels has gently, approaches, power consumption is little are widely used in modernized information equipments such as TV, notebook, computing machine, mobile phone, personal digital assistant.At present, the application of display panels on TV market is more and more important, but liquid crystal itself is the glutinousness material, causes its reaction velocity to contend with CRT.
Please refer to Fig. 1, be a kind of initiative matrix liquid crystal display panel of prior art, this initiative matrix liquid crystal display panel 100 comprises that sweep trace 13, multiple row that multirow is parallel to each other are parallel to each other and the data line 14, a plurality of liquid crystal pixels 15 that are positioned at multi-strip scanning line and many data line places of intersecting, a plurality of sweep signal chip 11 that intersect vertically with this sweep trace insulation respectively are used for producing and provide sweep signal 19 (with reference to Fig. 2) be used for generation for this multi-strip scanning line 13, a plurality of data signal chip 12 and the signal of giving information to these many data lines 14.
Please refer to Fig. 2, is the drive signal waveform figure of the driving method of initiative matrix liquid crystal display panel shown in Figure 1.Wherein, " CLOCK " is the clock signal oscillogram, and " STV1 " is beginning pulse signal waveform figure, and " Gn.01-Gn.256 " is a plurality of sweep signal oscillograms, and " S1.OE-Sk.OE " is the activation oscillogram of a plurality of data signal chips.
Please also refer to Fig. 1 and Fig. 2, these a plurality of sweep signal chips 11 produce a plurality of sweep signals 19 continuously in a frame time, provide this sweep signal 19 to each horizontal scanning line 13 then successively, promptly, G1.1 to the first is capable, G1.256 to the 256 row, G2.1 to the 257 row, the rest may be inferred.By the activation oscillogram of these a plurality of data signal chips 12 as can be seen: sweep signal 19 duration of works, this data signal chip 12 is all in running order.Therefore when a horizontal scanning line 13 was provided sweep signal 19, these a plurality of data signal chips 12 provided a data signal to these many data lines 14, make the pixel 15 that is positioned on this horizontal scanning line 13 keep these data signals.Back one frame scan signal 19 offers before this horizontal scanning line 13, and the view data that is positioned at a plurality of pixels 15 demonstrations on this horizontal scanning line 13 remains unchanged.When the sweep signal 19 of back one frame offered this horizontal scanning line 13, these a plurality of data signal chips 12 provided back one frame data signal to these many data lines 14, make the pixel 15 that is positioned on this horizontal scanning line 13 be updated to back one frame data signal.
Because the viscous effect of liquid crystal causes the liquid crystal reverse speed slower, with a frame time 16.7ms is example, the liquid crystal molecule of pixel can not arrive needed GTG brightness under the driving of data signal voltage at once in a frame time, in addition, the image of the residual former frame picture of meeting shows in the human eye vision, the image that causes the former frame picture can influence back one frame picture shows, so the display panels of prior art has the smear phenomenon when showing dynamic menu.
[summary of the invention]
The object of the present invention is to provide a kind of initiative matrix liquid crystal display panel that when dynamic menu shows, does not have smear.
Another object of the present invention is to provide a kind of driving method of above-mentioned initiative matrix liquid crystal display panel.
The invention provides a kind of initiative matrix liquid crystal display panel, it comprises the fine scanning line that is parallel to each other, the multi-column data line that is parallel to each other and intersects vertically with the insulation of this sweep trace respectively, the a plurality of liquid crystal pixels that are positioned at multi-strip scanning line and many data line places of intersecting and are connected with sweep trace with the data line of this infall respectively, be used to produce and a plurality of sweep signal groups of comprising a data reading scan signal and a black plug sweep signal a plurality of sweep signal chips to this multi-strip scanning line are provided, the signal that is used to give information is given a plurality of data signal chips of these many data lines and is used to provide black frame insertion signals to make display panels show a plurality of black frame insertion signals chips of black attitude to these many data lines.
The invention provides a kind of driving method of above-mentioned initiative matrix liquid crystal display panel, comprise that this sweep signal chip produces this sweep signal group that comprises a data reading scan signal and a black plug sweep signal successively; When a horizontal scanning line was provided this data reading scan signal, this data signal chip was given information signal simultaneously to these many data lines, makes the pixel display image data that is positioned on this horizontal scanning line; When this horizontal scanning line is provided a black plug sweep signal, this black frame insertion signals chip provides a black frame insertion signals to these many data lines, make pixel show black attitude, wherein, the interval of data reading scan signal in this sweep signal group and black plug sweep signal is adjustable as 0.5 frame time length or 0.4 frame time length.
Compared to prior art, because display panels of the present invention comprises a plurality of black frame insertion signals chips, in a frame display frame, these a plurality of black frame insertion signals chips provide a black frame insertion signals make liquid crystal pixel be presented at next frame before change black attitude into, therefore between former frame picture and back one frame picture demonstration one black plug picture is arranged, so the former frame picture can not influence the demonstration of back one frame picture, it is all more clear to adopt this kind mode that dynamic menu is shown, the smear phenomenon that prior art can not occur, thus picture quality improved.
Compared to prior art, because the data reading scan signal in the driving method of initiative matrix liquid crystal display panel of the present invention in this sweep signal group and the interval of black plug sweep signal are adjustable as 0.5 frame time length or 0.4 frame time length, can accurately control picture display effect, providing more clearly, dynamic menu shows.
[description of drawings]
Fig. 1 is the synoptic diagram of the initiative matrix liquid crystal display panel of prior art.
Fig. 2 is the drive signal waveform figure of the driving method of initiative matrix liquid crystal display panel shown in Figure 1.
Fig. 3 is an initiative matrix liquid crystal display panel synoptic diagram of the present invention.
Fig. 4 is the drive signal waveform figure of the driving method of initiative matrix liquid crystal display panel shown in Figure 3.
[embodiment]
Please also refer to Fig. 3 and Fig. 4, Fig. 3 is an initiative matrix liquid crystal display panel synoptic diagram of the present invention.Fig. 4 is the drive signal waveform figure of the driving method of initiative matrix liquid crystal display panel shown in Figure 3.Wherein, this display panels 200 comprises that sweep trace 23, multiple row that multirow is parallel to each other are parallel to each other and the data line 24 that intersects vertically with these sweep trace 23 insulation respectively, a plurality of liquid crystal pixels 25, a plurality of sweep signal chip 21 that are positioned at multi-strip scanning line 23 and many data line 24 places of intersecting are used for generation and provide a plurality of sweep signal groups 29 to be used to provide black frame insertion signals to these many data lines 24 to this multi-strip scanning line 23, a plurality of data signal chip 22 signal that is used for giving information simultaneously to these many data lines 24 and a plurality of black frame insertion signals chip 28.Wherein, this sweep signal group 29 comprises a data reading scan signal 291 and a black plug sweep signal 292, and this data reading scan signal 291 and black plug sweep signal 292 are two adjacent pulse signals in the frame time.
" CLOCK " is the clock signal oscillogram among Fig. 4, " STV1 " is beginning pulse signal waveform figure, " G1.1-Gn.256 " is a plurality of sweep signal group 29 oscillograms, " S1.OE-Sk.OE " is the activation oscillogram of a plurality of data signal chips 22, and " B1.OE-Bk.OE " is the activation oscillogram of a plurality of black frame insertion signals chips 28.
These a plurality of sweep signal chips 21 produce a plurality of sweep signal groups 29 continuously in a frame time, provide this sweep signal group 29 to each horizontal scanning line 23, promptly then successively, G1.1 to the first is capable, G1.256 to the 256 row, G2.1 to the 257 row, the rest may be inferred.From the activation oscillogram of these a plurality of data signal chips 22 as can be seen: during these a plurality of data reading scan signals 291, this data signal chip 22 is all in running order.One horizontal scanning line 23 is provided during this data reading scan signal 291, these data signal chip 21 work, its signal of giving information is given this data line 24, make pixel 25 display image datas that are positioned on this horizontal scanning line 23, from the activation oscillogram of these a plurality of black frame insertion signals chips 28 as can be seen: during a plurality of black plug sweep signals 292, this black frame insertion signals chip 28 is all in running order.When one horizontal scanning line 23 is provided a black plug sweep signal 292, these black frame insertion signals chip 28 work, it provides a black frame insertion signals 292 to these many data lines 24, makes the pixel 25 that is positioned on this horizontal scanning line 23 show black attitude.That is, for 25: one interior liquid crystal pixel 25 display data signals under the selection of this data reading scan signal 291 of frame time of delegation's pixel, change black attitude then under the selection of this black plug sweep signal 292, next frame repeats this operation.
Usually, above-mentioned initiative matrix liquid crystal display panel 200 also comprises a clock circuit, is used for clocking.These a plurality of liquid crystal pixels 25 can also be connected with these many data lines 24 with this multi-strip scanning line 23 by on-off element such as thin film transistor (TFT).
In addition, these a plurality of sweep signal groups clock period at interval successively among the present invention, the duration of this data reading scan signal adds that the duration of black plug sweep signal is a clock period.Wherein, these a plurality of data reading scan signals are clock period at interval successively also, and phase non-overlapping copies in time.These a plurality of black plug sweep signals are clock period at interval successively also.The duration of this data reading scan signal can equal, is longer than or is shorter than the duration of this black plug sweep signal.Can also control the dutycycle of display time interval by regulating time interval of this data reading scan signal and this black plug sweep signal in this sweep signal group, for example: when the data reading scan signal in this sweep signal group and the interval of black plug sweep signal were adjusted to 0.5 frame time length, display time interval was 50% of a frame time; When the interval of data reading scan signal in this sweep signal group and black plug sweep signal was adjusted to 0.4 frame time length, display time interval was 40% of a frame time.
The data signal that this data signal chip 21 offers this data line 24 in the initiative matrix liquid crystal display panel of the present invention can be a kind of in 8 rank, 16 rank, 32 rank or 64 rank.
Initiative matrix liquid crystal display panel of the present invention is not limited to above-mentioned embodiment, and for example: the interval of the black plug sweep signal in the initiative matrix liquid crystal display panel of the present invention is adjustable as 0.6 frame time length or 0.3 frame time length.In liquid crystal panel size and pixel all more after a little while, the quantity of this black frame insertion signals chip, data signal chip and sweep signal chip also can have only one respectively, and how much concrete quantity of this black frame insertion signals chip also can deciding according to liquid crystal panel size and pixel.
Claims (10)
1. initiative matrix liquid crystal display panel, it comprises:
The fine scanning line that is parallel to each other;
The multi-column data line that is parallel to each other and intersects vertically with sweep trace insulation respectively;
Be positioned at multi-strip scanning line and many a plurality of liquid crystal pixels that data line intersects and locates, it is connected with sweep trace with the data line of this infall respectively;
Be used to produce and provide a plurality of sweep signal groups that comprise a data reading scan signal and a black plug sweep signal;
Be used to produce and provide a plurality of sweep signal groups that comprise a data reading scan signal and a black plug sweep signal to this multi-strip scanning line;
It is characterized in that: this display panels further comprises a plurality of black frame insertion signals chips that are connected with these many data lines, is used to provide black frame insertion signals to make display panels show black attitude.
2. initiative matrix liquid crystal display panel as claimed in claim 1 is characterized in that: these a plurality of liquid crystal pixels can be connected with data line by the sweep trace of on-off element and this infall.
3. initiative matrix liquid crystal display panel as claimed in claim 2 is characterized in that: this on-off element can be a thin film transistor (TFT).
4. initiative matrix liquid crystal display panel as claimed in claim 1 is characterized in that: further comprise a clock circuit, be used for clocking.
5. the driving method of initiative matrix liquid crystal display panel as claimed in claim 1, it comprises: this sweep signal chip produces the sweep signal group that comprises a data reading scan signal and a black plug sweep signal successively; This sweep signal chip provides this sweep signal group to each horizontal scanning line successively; When a horizontal scanning line was provided this data reading scan signal, this data signal chip was given information signal simultaneously to these many data lines, makes the pixel display image data that is positioned on this horizontal scanning line; When this horizontal scanning line is provided a black plug sweep signal, this black frame insertion signals chip provides a black frame insertion signals to these many data lines, make pixel show black attitude, wherein the interval of data reading scan signal in this sweep signal group and black plug sweep signal is adjustable as 0.5 frame time length or 0.4 frame time length.
6. the driving method of initiative matrix liquid crystal display panel as claimed in claim 5, it is characterized in that: these a plurality of sweep signal groups are clock period of interval successively, the duration of this data reading scan signal adds that the duration of black plug sweep signal is a clock period, these a plurality of data reading scan signals are clock period of interval successively, and phase non-overlapping copies in time, these a plurality of black plug sweep signals be clock period at interval successively.
7. the driving method of initiative matrix liquid crystal display panel as claimed in claim 5 is characterized in that: this data reading scan equals the black plug sweep signal duration signal duration.
8. the driving method of initiative matrix liquid crystal display panel as claimed in claim 5 is characterized in that: this data reading scan is longer than the black plug sweep signal duration signal duration.
9. the driving method of initiative matrix liquid crystal display panel as claimed in claim 5 is characterized in that: this data reading scan is shorter than the black plug sweep signal duration signal duration.
10. the driving method of initiative matrix liquid crystal display panel as claimed in claim 5 is characterized in that: this data signal can be a kind of in 8 rank, 16 rank, 32 rank and 64 rank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410091968 CN1797140A (en) | 2004-12-30 | 2004-12-30 | LCD faceplate of active matrix, and driving method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410091968 CN1797140A (en) | 2004-12-30 | 2004-12-30 | LCD faceplate of active matrix, and driving method |
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| CN1797140A true CN1797140A (en) | 2006-07-05 |
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| CN 200410091968 Pending CN1797140A (en) | 2004-12-30 | 2004-12-30 | LCD faceplate of active matrix, and driving method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101236717B (en) * | 2007-02-01 | 2010-09-15 | 明基电通股份有限公司 | Dynamic image data sequence generation method and dynamic image display apparatus |
| CN101256291B (en) * | 2007-02-28 | 2011-06-29 | 群康科技(深圳)有限公司 | Crystal display device and driving method thereof |
| CN102637403A (en) * | 2011-02-09 | 2012-08-15 | 精工爱普生株式会社 | Electrooptic device, method for controlling electrooptic device, and electronic apparatus |
| CN102682717A (en) * | 2012-03-23 | 2012-09-19 | 友达光电股份有限公司 | Driving method and driving circuit of display unit |
| CN104238224A (en) * | 2013-06-07 | 2014-12-24 | 元太科技工业股份有限公司 | Display panel and method for manufacturing the same |
| CN104867469A (en) * | 2015-06-08 | 2015-08-26 | 深圳市华星光电技术有限公司 | Display device capable of performing black frame insertion |
| CN105096878A (en) * | 2015-08-20 | 2015-11-25 | 深圳市华星光电技术有限公司 | Liquid crystal display driving device and liquid crystal display driving method |
-
2004
- 2004-12-30 CN CN 200410091968 patent/CN1797140A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101236717B (en) * | 2007-02-01 | 2010-09-15 | 明基电通股份有限公司 | Dynamic image data sequence generation method and dynamic image display apparatus |
| CN101256291B (en) * | 2007-02-28 | 2011-06-29 | 群康科技(深圳)有限公司 | Crystal display device and driving method thereof |
| CN102637403A (en) * | 2011-02-09 | 2012-08-15 | 精工爱普生株式会社 | Electrooptic device, method for controlling electrooptic device, and electronic apparatus |
| CN102682717A (en) * | 2012-03-23 | 2012-09-19 | 友达光电股份有限公司 | Driving method and driving circuit of display unit |
| CN102682717B (en) * | 2012-03-23 | 2015-10-07 | 友达光电股份有限公司 | Driving method and driving circuit of display unit |
| US9202426B2 (en) | 2012-03-23 | 2015-12-01 | Au Optronics Corp. | Display driving circuit and driving method of display unit |
| TWI587259B (en) * | 2012-03-23 | 2017-06-11 | 友達光電股份有限公司 | Driving method of a display unit and the driving circuit thereof |
| CN104238224A (en) * | 2013-06-07 | 2014-12-24 | 元太科技工业股份有限公司 | Display panel and method for manufacturing the same |
| US9542879B2 (en) | 2013-06-07 | 2017-01-10 | E Ink Holdings Inc. | Display panel |
| CN104867469A (en) * | 2015-06-08 | 2015-08-26 | 深圳市华星光电技术有限公司 | Display device capable of performing black frame insertion |
| CN105096878A (en) * | 2015-08-20 | 2015-11-25 | 深圳市华星光电技术有限公司 | Liquid crystal display driving device and liquid crystal display driving method |
| CN105096878B (en) * | 2015-08-20 | 2018-04-06 | 深圳市华星光电技术有限公司 | Driving device of liquid crystal display and method for driving liquid crystal display |
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