CN101592831B - Liquid crystal display (LCD) and driving method thereof - Google Patents
Liquid crystal display (LCD) and driving method thereof Download PDFInfo
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- CN101592831B CN101592831B CN2008100675247A CN200810067524A CN101592831B CN 101592831 B CN101592831 B CN 101592831B CN 2008100675247 A CN2008100675247 A CN 2008100675247A CN 200810067524 A CN200810067524 A CN 200810067524A CN 101592831 B CN101592831 B CN 101592831B
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Abstract
The invention provides a liquid crystal display (LCD) which comprises an LCD panel. The LCD panel comprises a plurality of scanning line groups, a plurality of data lines and a plurality of pixel electrodes, wherein each scanning line group comprises two adjacent scanning lines; the plurality of scanning lines are used for receiving a plurality of external scanning signals according to the predefined sequence; the plurality of scanning signals scan the plurality of scanning line groups in sequence and enable the two scanning lines of two adjacent scanning line groups to be scanned in a reverse sequence; the data lines are used for receiving a plurality of external gray scale voltage signals; the pixel electrodes are used for receiving the gray scale voltage; each data line corresponds to two pixel electrodes between the scanning line groups and is positioned between the two pixel electrodes; and the two pixel electrodes to which the data line corresponds respectively correspond to the two scanning lines of the scanning line groups. The invention also provides a driving method of the LCD.
Description
Technical field
The present invention relates to a kind of Liquid Crystal Display And Method For Driving.
Background technology
Because LCD (Liquid Crystal Display, it is less LCD) to have a volume, and advantage such as the lower and radiation of power consumption is little is so obtained widespread use.
Seeing also Fig. 1, is a kind of electrical block diagram of prior art LCD.This LCD 100 comprises scan driving circuit 110, a data drive circuit 120 and a display panels 130.
This display panels 130 comprises that many sweep traces that are parallel to each other 101, many are parallel to each other and and the vertically insulated crossing data line of this sweep trace 101 102, a plurality of thin film transistor (TFT) 150 and a plurality of pixel electrode 140.The a plurality of pixel regions that are arranged of many data lines of this multi-strip scanning line 101 and this 102 definition.A corresponding pixel electrode 140 of each pixel region and a thin film transistor (TFT) 150.This thin film transistor (TFT) 150 comprises that a grid (indicate) is connected to that this sweep trace 101, one source pole (indicating) are connected to this data line 102, a drain electrode (indicating) is connected to corresponding pixel electrode 140.
During these LCD 100 operate as normal, this scan drive circuit 110 order successively provides a plurality of sweep signals to this multi-strip scanning line 101.When this sweep signal is applied to this sweep trace 101, these sweep trace 101 corresponding a plurality of thin film transistor (TFT)s 150 conductings that connect.This data drive circuit 120 provides a plurality of gray scale voltage signals to be applied to respective pixel electrode 140 via the thin film transistor (TFT) 150 of corresponding conducting.Thereby these pixel electrode 140 corresponding pixel regions show the image of corresponding GTG.
Yet because each pixel region all needs a corresponding data line 102 corresponding drivings, this LCD 100 needs more data line 102 to drive these a plurality of pixel regions to cooperate.For example, if this display panels 130 is general XGA profile plate, then it has 1024 * 3 * 768 pixel regions, so need 1024 * 3=3072 bar data line and 768 sweep traces.And more data line 102 directly causes between these many data lines 102 apart from less, thereby increases the manufacturing process difficulty of this data drive circuit 120 and this display panels 130.In addition, owing on the panel more data line 102 is set, the aperture opening ratio of this display panels 130 is less.
Summary of the invention
In order to solve the more problem of bringing of data line of liquid crystal display, be necessary the LCD that provides a kind of data line less.
A kind of LCD, it comprises a display panels.This display panels comprises a plurality of scanline groups, many data lines and a plurality of pixel electrode.Each this scanline groups comprises two adjacent sweep traces.This multi-strip scanning line is used for receiving outside a plurality of sweep signals according to predefined procedure, and these a plurality of sweep signals scan these a plurality of scanline groups successively and make the reversed in order that the quilt of two sweep traces of two adjacent scanline groups scans.This data line is used for receiving outside a plurality of gray scale voltage signals.This pixel electrode is used for receiving this gray scale voltage signal.Two pixel electrodes of corresponding electrical connection between two sweep traces of each data line and each scanline groups.
A kind of liquid crystal display driving method, this LCD comprise a plurality of scanline groups, many data lines and a plurality of pixel electrode.Each scanline groups comprises two adjacent sweep traces; And two sweep traces of each scanline groups are two one first adjacent sweep traces and one second sweep trace, two pixel electrodes of corresponding electrical connection between two sweep traces of each data line and each scanline groups.This liquid crystal display driving method comprises provides the scanline groups of one first scan method in order to the scanning odd number; The scanline groups of one second scan method in order to the scanning even number is provided; Provide a plurality of sweep signals to scan this a plurality of scanline groups successively according to this first and second scan method.
Compared to prior art, each data line of above-mentioned LCD and its driving method is corresponding two pixel electrodes between scanline groups, thus the negligible amounts of data line.Therefore, the aperture opening ratio of the display panels of this less data line is bigger.And because data line quantity is less, the manufacturing process difficulty of this data driving circuit and this display panels is less.
Description of drawings
Fig. 1 is a kind of electrical block diagram of prior art LCD.
Fig. 2 is the electrical block diagram of the LCD of liquid crystal display driving method employing of the present invention.
Fig. 3 is the sweep signal sequential chart of liquid crystal display driving method first embodiment of the present invention.
Fig. 4 is the sweep signal sequential chart of liquid crystal display driving method second embodiment of the present invention.
Embodiment
Seeing also Fig. 2, is the electrical block diagram of LCD of the present invention.This LCD 200 comprises scan driving circuit 210, a data drive circuit 220 and a display panel 230.This scan drive circuit 210 is used to provide a plurality of sweep signals to this display panels 230.This data drive circuit 220 is used for when this display panels 230 is scanned, providing a plurality of gray scale voltage signals to this display panels 230.
This display panels 230 comprises that many sweep trace G1～G2n that are parallel to each other (n is a natural number), many are parallel to each other and and this sweep trace insulation the data line D1～Dm (m is a natural number), a plurality of thin film transistor (TFT) 250 and a plurality of pixel electrode 240 that intersect vertically.This multi-strip scanning line G1...G2m horizontal-extending also is connected to this scan drive circuit 210, and these many data line D1...Dn vertically extend and are connected to this data drive circuit 220.
These a plurality of thin film transistor (TFT)s 250 are arranged at this multi-strip scanning line G1～G2n and these many data line D1～Dm infalls respectively.Each thin film transistor (TFT) 250 comprises that a grid (not indicating) is connected to corresponding scanning line, one source pole (not indicating) is connected to corresponding data line and a drain electrode (not indicating) is connected to this pixel electrode 240.
These a plurality of pixel electrodes 240 are arranged between the sweep trace of sweep trace and back one adjacent even number of each odd number.Each pixel electrode 240 corresponding pixel region.
Between per two adjacent sweep traces, each data line connects two pixel electrodes 240 respectively via source electrode, the drain electrode of two thin film transistor (TFT)s 250, and this data line bit is between these two pixel electrodes 240.The grid of this this two thin film transistor (TFT)s 250 is connected respectively to this two adjacent sweep traces.
Seeing also Fig. 3, is the first embodiment sweep signal sequential chart of the driving method of LCD 200 shown in Figure 2.During these LCD 200 operate as normal:
T0～t1 period, this sweep trace G1 is applied in one scan signal g1.The pulse of this sweep signal g1 is applied to the corresponding grid that connects a plurality of thin film transistor (TFT)s 250 of this sweep trace G1, feasible these a plurality of thin film transistor (TFT) 250 conductings that are connected with this sweep trace G1.Thereby these many data line D1～Dm apply a plurality of gray scale voltage signals to corresponding pixel electrode 240 via these a plurality of thin film transistor (TFT)s 250 of the conducting that is connected with this sweep trace G2.
T1～t2 period, this sweep trace G2 is applied in one scan signal g2.The pulse of this sweep signal g2 is applied to the corresponding grid that connects a plurality of thin film transistor (TFT)s 250 of this sweep trace G2, feasible a plurality of thin film transistor (TFT)s 250 conductings that are connected with this sweep trace G2.Thereby these many data line D1～Dm apply a plurality of gray scale voltage signals to corresponding pixel electrode 240 via these a plurality of thin film transistor (TFT)s 250 of the conducting that is connected with this sweep trace G2.
T2～t3 period, this sweep trace G4 is applied in one scan signal g4.The pulse of this sweep signal g4 is applied to the corresponding grid that connects a plurality of thin film transistor (TFT)s 250 of this sweep trace G4, feasible a plurality of thin film transistor (TFT)s 250 conductings that are connected with this sweep trace G4.Thereby these many data line D1～Dm apply a plurality of gray scale voltage signals to corresponding pixel electrode 240 via these a plurality of thin film transistor (TFT)s 250 of the conducting that is connected with this sweep trace G4.
T3～t4 period, this sweep trace G3 is applied in one scan signal g3.The pulse of this sweep signal g3 is applied to the corresponding grid that connects a plurality of thin film transistor (TFT)s 250 of this sweep trace G3, feasible a plurality of thin film transistor (TFT)s 250 conductings that are connected with this sweep trace G3.Thereby these many data line D1～Dm apply a plurality of gray scale voltage signals to corresponding pixel electrode 240 via these a plurality of thin film transistor (TFT)s 250 of the conducting that is connected with this sweep trace G3.
After this, the driving sequence of sweep signal and t0～t4 is similar between the period, and promptly (order of 1≤i≤n-1) is scanned successively according to G2i-1 → G2i → G2i+2 → G2i+1.
Compared to prior art, each data line of this LCD 200 drives two pixel regions in the horizontal direction.When therefore being an XGA profile plate as if this display panels 201, only need 3072 ÷ 2=1536 bar data lines can reach 1024 * 3 * 768 resolution, these display panels 201 used data lines significantly reduce.Therefore, the aperture opening ratio of this display panels 201 is bigger.And because data line quantity is less, the manufacturing process difficulty of this data driving circuit and this display panels is less.In addition, can there be the problem that shows difference in the display effect of this LCD 200.
Seeing also Fig. 3, is the sweep signal sequential chart of LCD 2 driving methods second embodiment shown in Figure 1.During these LCD 2 operate as normal:
T0～t1 period, this sweep trace G2 is applied in one scan signal g2.The pulse of this sweep signal g2 is applied to the corresponding grid that connects a plurality of thin film transistor (TFT)s 250 of this sweep trace G2, feasible a plurality of thin film transistor (TFT)s 250 conductings that are connected with this sweep trace G2.Thereby these many data line D1～Dm apply a plurality of gray scale voltage signals to corresponding pixel electrode 240 via these a plurality of thin film transistor (TFT)s 250 of the conducting that is connected with this sweep trace G2.
T1～t2 period, this sweep trace G1 is applied in one scan signal g1.The pulse of this sweep signal g1 is applied to the corresponding grid that connects a plurality of thin film transistor (TFT)s 250 of this sweep trace G1, feasible these a plurality of thin film transistor (TFT) 250 conductings that are connected with this sweep trace G1.Thereby these many data line D1～Dm apply a plurality of gray scale voltage signals to corresponding pixel electrode 240 via these a plurality of thin film transistor (TFT)s 250 of the conducting that is connected with this sweep trace G2.
T2～t3 period, this sweep trace G3 is applied in one scan signal g3.The pulse of this sweep signal g3 is applied to the corresponding grid that connects a plurality of thin film transistor (TFT)s 250 of this sweep trace G3, feasible a plurality of thin film transistor (TFT)s 250 conductings that are connected with this sweep trace G3.Thereby these many data line D1～Dm apply a plurality of gray scale voltage signals to corresponding pixel electrode 240 via these a plurality of thin film transistor (TFT)s 250 of the conducting that is connected with this sweep trace G3.
T3～t4 period, this sweep trace G4 is applied in one scan signal g4.The pulse of this sweep signal g4 is applied to the corresponding grid that connects a plurality of thin film transistor (TFT)s 250 of this sweep trace G4, feasible a plurality of thin film transistor (TFT)s 250 conductings that are connected with this sweep trace G4.Thereby these many data line D1～Dm apply a plurality of gray scale voltage signals to corresponding pixel electrode 240 via these a plurality of thin film transistor (TFT)s 250 of the conducting that is connected with this sweep trace G4.
The driving sequence of sweep signal after this and t0～t4 is similar between the period, and promptly (order of 1≤i≤n-1) is scanned successively according to G2i → G2i-1 → G2i+1 → G2i+2.
In fact, be divided into one group, can obtain a plurality of scanline groups so if this multi-strip scanning line is begun per two sweep traces from G1.Wherein, each scanline groups comprises the sweep trace of an odd number and the sweep trace of an even number.So, according to above-mentioned sweep signal sequential chart, the reversed in order that the sweep trace of adjacent scanline groups is scanned.That is, if the order of the scanning of two sweep traces of preceding scanning line set be strange earlier back idol (sweep trace of scanning odd number, the sweep trace of back scanning even number) earlier, then the scanning sequency of two sweep traces of back scanning line set be earlier after the idol very.These a plurality of scanline groups are scanned successively, and have only a sweep trace to be scanned at any one time.Therefore, the scanning sequency of two sweep traces of the scanline groups of all odd numbers is identical, and the scanning sequency of two sweep traces of the scanline groups of all even numbers is identical and opposite with the scanline groups of odd number.
In addition, this LCD 200 also can comprise the sweep trace of the adjacent scanline groups that the part scanning sequency is identical.
Claims (9)
1. LCD, it comprises a display panels, it is characterized in that: this display panels comprises:
A plurality of scanline groups; Each this scanline groups comprises two adjacent sweep traces; This multi-strip scanning line is used for receiving outside a plurality of sweep signals according to predefined procedure, and these a plurality of sweep signals scan these a plurality of scanline groups successively and make the reversed in order that the quilt of two sweep traces of two adjacent scanline groups scans;
Many data lines, this data line are used for receiving outside a plurality of gray scale voltage signals; With
Pixel electrode between a plurality of two sweep traces that are arranged at each scanline groups, this pixel electrode is used for receiving this gray scale voltage signal, and two pixel electrodes between two sweep traces of each scanline groups are connected with same data line.
2. LCD as claimed in claim 1 is characterized in that: and the data line bit that two pixel electrodes between two sweep traces of each scanline groups connect is between these two pixel electrodes.
3. LCD as claimed in claim 1; It is characterized in that: further comprise a scan driving circuit and a data drive circuit; This scan drive circuit is used to provide this a plurality of sweep signals; This data drive circuit is used to provide this a plurality of gray scale voltage signals, and the corresponding pixel region of each pixel electrode, each data line drive the corresponding corresponding pixel region of these two pixel electrodes in the horizontal direction; This display panels further comprises a plurality of thin film transistor (TFT)s; These a plurality of thin film transistor (TFT)s are arranged at this multi-strip scanning line and these many data line infalls and corresponding respectively with these a plurality of pixel electrodes, and each thin film transistor (TFT) comprises that a grid is connected to this sweep trace, and one source pole is connected to this data line and a drain electrode is connected to corresponding pixel electrode.
4. LCD as claimed in claim 1; It is characterized in that: two sweep traces of each scanline groups are two one first adjacent sweep traces and one second sweep trace; First sweep trace of this scanline groups is scanned prior to its second sweep trace, and second sweep trace of back one adjacent scanline groups is scanned in second sweep trace of this scanline groups prior to its first sweep trace and back.
5. LCD as claimed in claim 1 is characterized in that: the scanning sequency of two sweep traces of the scanline groups of all odd numbers is identical, and the scanning sequency of two sweep traces of the scanline groups of all even numbers is identical and opposite with the scanline groups of odd number.
6. liquid crystal display driving method; This LCD comprises a plurality of scanline groups, many data lines and a plurality of pixel electrode; Each scanline groups comprises two sweep traces; And two sweep traces of each scanline groups are two one first adjacent sweep traces and one second sweep trace, and two pixel electrodes between two sweep traces of each scanline groups are connected with same data line, and this liquid crystal display driving method comprises:
Provide one first scan mode in order to scan first's scanline groups;
Provide one second scan mode in order to scan a second portion scanline groups, it is characterized in that: this first scan mode is different to the scanning sequency of two sweep traces of this scanline groups with this second scan mode.
7. liquid crystal display driving method as claimed in claim 6; It is characterized in that: this first's scanline groups is the scanline groups of odd number; This second portion scanline groups is the scanline groups of even number, and these a plurality of scanline groups are that the order according to odd-even alternation is scanned successively.
8. liquid crystal display driving method as claimed in claim 7 is characterized in that: this first scan mode is elder generation's this first sweep trace of scanning, this second sweep trace of back scanning, and this second scan mode is to scan this second sweep trace earlier, this first sweep trace of back scanning.
9. liquid crystal display driving method as claimed in claim 7 is characterized in that: this first scan mode is elder generation's this second sweep trace of scanning, this first sweep trace of back scanning, and this second scan mode is to scan this first sweep trace earlier, this second sweep trace of back scanning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100675247A CN101592831B (en) | 2008-05-28 | 2008-05-28 | Liquid crystal display (LCD) and driving method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100675247A CN101592831B (en) | 2008-05-28 | 2008-05-28 | Liquid crystal display (LCD) and driving method thereof |
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| Publication Number | Publication Date |
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| CN101592831A CN101592831A (en) | 2009-12-02 |
| CN101592831B true CN101592831B (en) | 2012-11-28 |
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| CN2008100675247A Expired - Fee Related CN101592831B (en) | 2008-05-28 | 2008-05-28 | Liquid crystal display (LCD) and driving method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI473057B (en) * | 2013-01-30 | 2015-02-11 | Au Optronics Corp | Pixel unit and pixel array |
| CN104851391B (en) * | 2015-05-20 | 2017-10-17 | 深圳市华星光电技术有限公司 | A kind of drive circuit |
| KR102454228B1 (en) * | 2016-04-29 | 2022-10-14 | 엘지전자 주식회사 | Multi-vision device |
| CN106406612B (en) * | 2016-09-14 | 2019-07-26 | 厦门天马微电子有限公司 | Array substrate, display panel and display device comprising it |
| TWI706192B (en) * | 2019-05-17 | 2020-10-01 | 友達光電股份有限公司 | Pixel array substrate |
| CN113377273B (en) * | 2021-06-24 | 2023-11-24 | 厦门天马微电子有限公司 | Touch display panel and touch display device |
| CN114690494A (en) * | 2022-03-22 | 2022-07-01 | 苏州华星光电技术有限公司 | Display panel and display terminal |
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| US5710571A (en) * | 1995-11-13 | 1998-01-20 | Industrial Technology Research Institute | Non-overlapped scanning for a liquid crystal display |
| US5867141A (en) * | 1995-03-30 | 1999-02-02 | Nec Corporation | Driving method for liquid crystal display of gate storage structure |
| CN1573459A (en) * | 2003-06-23 | 2005-02-02 | 三星电子株式会社 | Display driving device and method and liquid crystal display apparatus having the same |
| CN1808250A (en) * | 2004-12-20 | 2006-07-26 | 三星电子株式会社 | Thin film transistor array panel and display device |
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2008
- 2008-05-28 CN CN2008100675247A patent/CN101592831B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5867141A (en) * | 1995-03-30 | 1999-02-02 | Nec Corporation | Driving method for liquid crystal display of gate storage structure |
| US5710571A (en) * | 1995-11-13 | 1998-01-20 | Industrial Technology Research Institute | Non-overlapped scanning for a liquid crystal display |
| CN1573459A (en) * | 2003-06-23 | 2005-02-02 | 三星电子株式会社 | Display driving device and method and liquid crystal display apparatus having the same |
| CN1808250A (en) * | 2004-12-20 | 2006-07-26 | 三星电子株式会社 | Thin film transistor array panel and display device |
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Address after: 518109 Longhua, Shenzhen, town, Foxconn science and Technology Industrial Park E District, building 1, floor 4, Applicant after: Qunkang Technology (Shenzhen) Co., Ltd. Co-applicant after: Chimei Optoelectronics Co., Ltd. Address before: 518109 Longhua, Shenzhen, town, Foxconn science and Technology Industrial Park E District, building 1, floor 4, Applicant before: Qunkang Technology (Shenzhen) Co., Ltd. Co-applicant before: Innolux Display Group |
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Granted publication date: 20121128 Termination date: 20210528 |