CN1996459B - Liquid crystal display device and drive method therefor - Google Patents
Liquid crystal display device and drive method therefor Download PDFInfo
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- CN1996459B CN1996459B CN2006100513169A CN200610051316A CN1996459B CN 1996459 B CN1996459 B CN 1996459B CN 2006100513169 A CN2006100513169 A CN 2006100513169A CN 200610051316 A CN200610051316 A CN 200610051316A CN 1996459 B CN1996459 B CN 1996459B
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Abstract
A LCD comprises pixel matrix, grid driver, and phototropism module and time sequence controller. The pixel matrix comprises several display area. The grid driver coupling the pixel matrix for the driving the each displays area. Set under the pixel matrix, the phototropism module, it comprises several illuminating components. Each displaying area corresponding to a lighting component. The time sequence controller couples with the grid driver and the phototropism module. The time sequence controller grid drive crossly drives each display areas, controlling the start of the phototropism module and the corresponding illuminating component at the same time.
Description
Technical field
The invention relates to a kind of Liquid Crystal Display And Method For Driving, and particularly relevant for a kind of with interlace mode driving pixels viewing area and light the Liquid Crystal Display And Method For Driving of corresponding fluorescent tube.
Background technology
After general LCD started, the fluorescent tube of its backlight module was all lighted, and therefore, when liquid crystal panel shows dynamic menu, the animation blooming that liquid crystal rotates shade occurred through regular meeting, reduced the dynamic menu display quality.In order to solve the fuzzy problem of this display frame, novel LCD uses the sweep type backlight module, and controls its fluorescent tube and light in regular turn with liquid crystal drive.
Figure 1A is TV structure figure on the LCD of known use sweep type backlight module.Please with reference to Figure 1A, LCD 100 comprises picture element matrix 110, gate drivers 120, data driver 130 and backlight module 140.Picture element matrix 110 comprises viewing area 112, for example be four viewing areas, and each viewing area 112 comprises a plurality of pixel columns (not being shown among the figure).Backlight module 140 comprises cathode fluorescent tube (Cold Cathode Fluorescent Lamp, CCFL) 141 of corresponding each viewing area 112.Viewing area 112 corresponding CCFL 141 for example.
Gate drivers 120 drives the pixel column of each viewing area 112 in regular turn, and comes the display pixel image according to the pixel data of data driver 130.The CCFL 141 of sweep type backlight module 140 cooperates the driving of each viewing area 112 and lights.After all pixel columns of each viewing area 112 are driven; Corresponding CCFL 141 promptly lights to show required pixel image; And after all pixel columns of next viewing area 112 are driven; A last CCFL 141 closes and next corresponding CCFL 141 lights, to show ensuing pixel image.
Light for fear of adjacent C CFL 141 interferes with each other, and can the mountain type reflector plate 144 shown in the undaform reflector plate 142 shown in Figure 1B or Fig. 1 C be set between two adjacent C CFL 141 usually and be separated.Yet the separated mode in this use reflection section will cause display frame that the reflector plate shade is arranged, and the manufacturing cost of backlight module 140 is increased.
Summary of the invention
In view of this, the object of the invention is providing a kind of Liquid Crystal Display And Method For Driving exactly.With interlace mode driving pixels viewing area and light corresponding fluorescent tube, can avoid that light interferes with each other and produce the animation blooming between the adjacent lamps nest of tubes, improve the animation quality.And needn't use above-mentioned reflection section separated, effectively reduce the manufacturing cost of backlight module.
According to the object of the invention, a kind of LCD is proposed, comprise picture element matrix, gate drivers, backlight module and time schedule controller.Picture element matrix comprises a plurality of viewing areas.Gate drivers couples picture element matrix, is used to drive each viewing area.Backlight module is to be arranged at the picture element matrix below, and backlight module comprises a plurality of light-emitting components.The corresponding at least one light-emitting component in each viewing area.Time schedule controller couples gate drivers and backlight module.The time sequence controller grid driver drives each viewing area with interlace mode, and controls backlight module simultaneously and open corresponding light-emitting component.
According to the object of the invention, a kind of driving method of LCD is proposed.Its driving method comprises with each viewing area of interlace mode driving, and controls backlight module simultaneously and open corresponding light-emitting component.
For letting above-mentioned purpose of the present invention, characteristic and the advantage can be more obviously understandable, hereinafter is special lifts a preferred embodiment, and cooperates appended graphicly, elaborates as follows.
Description of drawings
Figure 1A illustrates convention and uses TV structure figure on the LCD of sweep type backlight module.
Figure 1B illustrates the structural representation of backlight module use undaform reflector plate among Figure 1A.
Fig. 1 C illustrates the structural representation of backlight module use mountain type reflector plate among Figure 1A.
Fig. 2 illustrates a kind of liquid crystal display device structure figure according to the present invention's one preferred embodiment.
Fig. 3 illustrates the liquid crystal display driving method process flow diagram of one preferred embodiment according to the present invention.
Fig. 4 illustrates and respectively organizes CCFL among Fig. 3 and light sequential schematic.
[main element label declaration]
100,200: LCD
110,210: picture element matrix
112,212: the viewing area
120,220: gate drivers
130,230: data driver
140,250: backlight module
141、254：CCFL
142: the undaform reflector plate
144: mountain type reflector plate
240: time schedule controller
252: phase inverter
Embodiment
Please with reference to Fig. 2, it illustrates a kind of liquid crystal display device structure figure according to the present invention's one preferred embodiment.LCD 200 comprises picture element matrix 210, gate drivers 220, data driver 230, time schedule controller 240 and backlight module 250.Picture element matrix 210 comprises five viewing areas 212.Each viewing area 212 also comprises a plurality of pixel columns (not being shown among the figure).Gate drivers 220 couples picture element matrix 210, is used to drive the pixel column of each viewing area 212, and according to the pixel data display pixel image of data driver 230 output.Backlight module 250 is to be arranged at picture element matrix 210 belows, and backlight module 250 CCFL 254 that comprises phase inverter 252 and couple phase inverter 252.Each viewing area 212 is corresponding one group of CCFL 254, and each group CCFL 254 comprises two tubes.In addition, time schedule controller 240 is the phase inverters 252 that couple gate drivers 220 and backlight module 250.
All light for fear of the CCFL 254 of backlight module 250 and to cause the animation blooming, the time schedule controller 240 control gate drivers 220 of present embodiment drive each viewing area 212 with interlace mode, and control backlight module 250 is lighted corresponding CCFL 254.Next five viewing areas 212 with Fig. 2 are numbered the first, second, third, fourth and the 5th viewing area 212 from top to bottom in regular turn, and corresponding CCFL 254 also from top to bottom is numbered first group, second group, the 3rd group, the 4th group and the 5th group of CCFL 254 in regular turn.
Please with reference to Fig. 3, it illustrates the liquid crystal display driving method process flow diagram of one preferred embodiment according to the present invention.At first; In step 300; By time schedule controller 240 control gate drivers 220 pixel column of first viewing area 212 in the driving pixels matrix 210 in regular turn; And after all pixel columns of first viewing area 212 are driven, light first group of corresponding CCFL 254 by the phase inverter 252 of time schedule controller 240 control backlight modules 250.Then; In step 310; By the mode of time schedule controller 240 with a viewing area, interval; Control gate driver 220 drives the pixel column of the 3rd viewing area 212 in regular turn, and after all pixel columns of the 3rd viewing area 212 were driven, control phase inverter 252 was lighted the 3rd group of corresponding CCFL 254.Wherein first group of CCFL 254 lies in and closes before the 3rd group of CCFL 254 lights.
Then, in step 320, drive the pixel column of the 5th viewing area 212 in regular turn by time schedule controller 240 control gate drivers 220, and after all pixel columns of the 5th viewing area 212 are driven, control phase inverter 252 and light the 5th group of corresponding CCFL 254.Wherein the 3rd group of CCFL 254 lies in and closes before the 5th group of CCFL 254 lights.Carry out step 330, drive the pixel column of second viewing area 212 in regular turn by time schedule controller 240 control gate drivers 220, and after all pixel columns of second viewing area 212 are driven, control phase inverter 252 and light second group of corresponding CCFL 254.Wherein the 5th group of CCFL 254 closes before second group of CCFL 254 lights.At last; In step 340, drive the pixel column of the 4th viewing area 212 in regular turn by time schedule controller 240 control gate drivers 220, and after all pixel columns of the 4th viewing area 212 are driven; Control phase inverter 252 is lighted the 4th group of corresponding CCFL254, and process ends.Wherein second group of CCFL 254 closes before the 4th group of CCFL 254 lights.
As shown in Figure 4, the lighting mode of CCFL 254 is the order according to first group, the 3rd group, the 5th group, second group and the 4th group CCFL 254 in the liquid crystal display driving method of present embodiment, interlocks with the mode of the one group of CCFL 254 in interval and lights.Because the two adjacent CCFL that lighted 254 are distances of the one group of CCFL 254 in interval; At the pixel column that drives next viewing area 212 simultaneously; The light that the CCFL 254 that light a corresponding last viewing area 212 sends is unlikely to have influence on 212 picture displayed in viewing area that driving and produces unnecessary animation blooming, therefore can use above-mentioned reflector plate and reaches good dynamic menu quality.
As stated; Though LCD of the present invention is to have five viewing areas and ten CCFL are that example is explained; Right LCD of the present invention also can be divided the viewing area of other number; And the CCFL number of corresponding each viewing area also can any other number, and the CCFL number of corresponding each viewing area also can be inequality.In addition, backlight module also can be to use other light-emitting component as light source, for example is light emitting diode (Light Emitting Diode, LED) array.So long as light-emitting component and viewing area are driven with the display pixel image with interlace mode, to avoid the animation blooming, neither disengaging technical scope of the present invention.
In addition; Though the present invention is that example is explained with the driving viewing area that interlock, viewing area at interval; Right LCD of the present invention is fitted the viewing area number number of being divided; Also can between the above viewing area of next but two drive the pixel column of viewing area, even each at interval viewing area number also can be inequality, drives the viewing area so long as can stagger; Avoid continuous drive adjacent display areas territory to cause fluorescent tube light to interact and produce the animation blooming, also do not break away from technical scope of the present invention.
The advantage of the Liquid Crystal Display And Method For Driving that the above embodiment of the present invention disclosed is each viewing area with interlace mode driving pixels matrix; And the control backlight module is lighted corresponding fluorescent tube; Can avoid driving the animation blooming that the mutual interference of fluorescent tube light phase is caused in the adjacent display areas territory, improve the quality of dynamic menu.Owing to need not use known undaform or mountain type reflector plate, more reduced the manufacturing cost of backlight module simultaneously.
In sum; Though the present invention discloses as above with a preferred embodiment; So it is not to be used to limit the present invention, and any those skilled in the art are not breaking away from the spirit and scope of the present invention; When can doing various changes and retouching, so protection scope of the present invention is as the criterion when looking appended the claim scope person of defining.
Claims (9)
1. LCD comprises:
Picture element matrix comprises a plurality of viewing areas;
Gate drivers couples this picture element matrix, is used for driving each those viewing area;
Backlight module is arranged at this picture element matrix below, and wherein this backlight module comprises a plurality of light-emitting components, and the corresponding at least one light-emitting component in each those viewing area; And
Time schedule controller; Couple this gate drivers and this backlight module; Wherein this gate drivers of this time schedule controller control drives each those viewing area avoiding the adjacent viewing area of continuous drive with interlace mode, and controls lighting and closing of light-emitting component corresponding with those viewing areas in this backlight module simultaneously.
2. LCD according to claim 1, wherein this gate drivers is a viewing area at least at interval in driving the next viewing area that is driven behind one of them viewing area.
3. LCD according to claim 1; Wherein this viewing area comprises a plurality of pixel columns; And this time schedule controller is controlled this backlight module and is opened this corresponding light-emitting component after all those pixel columns of each those viewing area of this gate driver drive.
4. LCD according to claim 1, wherein this light-emitting component is a cathode fluorescent tube.
5. LCD according to claim 1, wherein this light-emitting component is a light emitting diode matrix.
6. the driving method of a LCD, this LCD comprises picture element matrix and backlight module, and this picture element matrix comprises a plurality of viewing areas, and this backlight module comprises at least one light-emitting component of corresponding each those viewing area, and this driving method comprises:
Drive each those viewing area avoiding the adjacent viewing area of continuous drive with interlace mode, and control lighting and closing of light-emitting component corresponding in this backlight module simultaneously with those viewing areas.
7. driving method according to claim 6 also comprises with the mode of a viewing area at least at interval driving each those viewing area, and controls this backlight module simultaneously and open this corresponding light-emitting component.
8. driving method according to claim 6, wherein each those viewing area comprises a plurality of pixel columns, and this driving method also comprises after all those pixel columns that drive each those viewing area, controls this backlight module and opens this corresponding light-emitting component.
9. driving method according to claim 8 also comprises driving one of them viewing area and opening this corresponding light-emitting component; And those pixel columns that drive next viewing area, and before this light-emitting component of opening corresponding next viewing area, close this light-emitting component that should the viewing area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100513169A CN1996459B (en) | 2006-01-05 | 2006-01-05 | Liquid crystal display device and drive method therefor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100513169A CN1996459B (en) | 2006-01-05 | 2006-01-05 | Liquid crystal display device and drive method therefor |
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| Publication Number | Publication Date |
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| CN1996459A CN1996459A (en) | 2007-07-11 |
| CN1996459B true CN1996459B (en) | 2012-01-04 |
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| CN2006100513169A Expired - Fee Related CN1996459B (en) | 2006-01-05 | 2006-01-05 | Liquid crystal display device and drive method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101739958B (en) * | 2008-11-24 | 2013-08-07 | 奇美电子股份有限公司 | Device and method for multi-region dynamically backlight driving |
| CN109192150B (en) * | 2018-11-01 | 2021-08-24 | 京东方科技集团股份有限公司 | Backlight module driving method and driving structure and display device |
Citations (6)
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|---|---|---|---|---|
| US6239779B1 (en) * | 1998-03-06 | 2001-05-29 | Victor Company Of Japan, Ltd. | Active matrix type liquid crystal display apparatus used for a video display system |
| CN1536400A (en) * | 2003-04-08 | 2004-10-13 | ������������ʽ���� | Display device |
| CN1540617A (en) * | 2003-04-21 | 2004-10-27 | 三星电子株式会社 | Power source and LCD device and drive method thereof |
| CN1609941A (en) * | 2003-10-21 | 2005-04-27 | Lg.菲利浦Lcd株式会社 | Liquid crystal display device and driving method thereof |
| CN1704824A (en) * | 2004-06-03 | 2005-12-07 | 微驱科技股份有限公司 | Deinterlaced display device |
| CN1713261A (en) * | 2004-06-21 | 2005-12-28 | 钰瀚科技股份有限公司 | Method and device for removing image fuzzy overlap between frames |
-
2006
- 2006-01-05 CN CN2006100513169A patent/CN1996459B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6239779B1 (en) * | 1998-03-06 | 2001-05-29 | Victor Company Of Japan, Ltd. | Active matrix type liquid crystal display apparatus used for a video display system |
| CN1536400A (en) * | 2003-04-08 | 2004-10-13 | ������������ʽ���� | Display device |
| CN1540617A (en) * | 2003-04-21 | 2004-10-27 | 三星电子株式会社 | Power source and LCD device and drive method thereof |
| CN1609941A (en) * | 2003-10-21 | 2005-04-27 | Lg.菲利浦Lcd株式会社 | Liquid crystal display device and driving method thereof |
| CN1704824A (en) * | 2004-06-03 | 2005-12-07 | 微驱科技股份有限公司 | Deinterlaced display device |
| CN1713261A (en) * | 2004-06-21 | 2005-12-28 | 钰瀚科技股份有限公司 | Method and device for removing image fuzzy overlap between frames |
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| CN1996459A (en) | 2007-07-11 |
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Effective date of registration: 20111114 Address after: Miaoli County, Taiwan, China Applicant after: Chimei Optoelectronics Co., Ltd. Address before: Tainan County, Taiwan, China Applicant before: Chimei Optoelectronics Co., Ltd. |
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