CN101369408B - LCD device and its driving method - Google Patents
LCD device and its driving method Download PDFInfo
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- CN101369408B CN101369408B CN2008102012031A CN200810201203A CN101369408B CN 101369408 B CN101369408 B CN 101369408B CN 2008102012031 A CN2008102012031 A CN 2008102012031A CN 200810201203 A CN200810201203 A CN 200810201203A CN 101369408 B CN101369408 B CN 101369408B
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000010408 film Substances 0.000 claims description 13
- 239000010409 thin film Substances 0.000 claims description 13
- 239000004973 liquid crystal related substance Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000000737 periodic effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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- Liquid Crystal Display Device Control (AREA)
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Abstract
The invention discloses an LCD panel and drive method thereof, the LCD panel comprises m row and n column of pixels, each row of pixel comprises a first scanning line and a second scanning line, each column of pixel comprises a data line, each pixel comprises a first TFT and a second TFT, in which, neighboring multi-row second scanning lines are connected to form k display area blocks, 2<=k<m/4, m, n and k are natural numbers. The LCD panel and the drive method provided by the invention are respectively provided with a drive signal and a common voltage for each display area block to implementthe area block inserting black and can improve dynamic ghost effectively.
Description
Technical field
The present invention relates to a kind of display panels and driving method thereof, particularly relate to a kind of display panels and driving method thereof that improves dynamic ghost.
Background technology
Liquid crystal display has become the main flow display device, and the LCD TV development is advanced by leaps and bounds, and LCD also has large development.Under the situation of LCD retention performance, for showing that dynamic picture can produce the phenomenon of dynamic fuzzy (motion blur).The technology of mainly improving at present the dynamic fuzzy phenomenon has black plug (BlackFrame Insert), Plug Grey (Gray Frame Insert), ME/MC (Motion Estimation/MotionCompensation), but these technology all must double vertical sweep frequency, promptly become 120Hz by original 60Hz.Every sweep trace time of opening can be reduced to originally 1/2 like this, and promptly the duration of charging of each pixel also becomes originally 1/2, and along with panel was big more originally, the time of charging is difficult to meet the demands, and causes the decline of display quality.
Chinese patent 200610087999.3 discloses a kind of vertical sweep frequency that do not need to improve, and realizes the method for black plug.As shown in Figure 1, in each pixel, increased by one second thin film transistor (TFT) (TFT) Tr2, its source electrode is connected to common electric voltage, its drain electrode is connected to the drain electrode of the first film transistor Tr 2, its grid all links to each other with all grids with delegation's pixel second thin film transistor (TFT), be connected to the sweep trace (G21, G2, G23......G2m, m are positive integer) of the second scanning chip 2 then.Open 1 couple of liquid crystal capacitance Clc of the first film transistor Tr at the first scanning chip 1 and charge, close then.After the first film transistor Tr 1 is closed a period of time, open the second thin film transistor (TFT) Tr2, the common electric voltage on the public pressure wire Com is charged into liquid crystal capacitance Clc, make that promptly the voltage at liquid crystal capacitance two ends is 0.Following at the common-black type display, the state that show this moment has reached the purpose of black plug for black.But owing to need to increase by the second scanning chip 2, the cost of increase is higher.
Summary of the invention
Technical matters to be solved by this invention provides a kind of display panels and driving method thereof, is not increasing vertical sweep frequency, does not increase under the situation of scanning chip, realizes black plug, improves the phenomenon of liquid crystal display device dynamic fuzzy.
The present invention solves the problems of the technologies described above the technical scheme that adopts to provide a kind of display panels and comprise:
A plurality of pixels, the capable n row of m are rectangular and are distributed on the display panels, each row pixel comprises first sweep trace and second sweep trace, each row pixel comprises a data line, each pixel comprises the first film transistor and second thin film transistor (TFT), wherein, the transistorized grid of the first film links to each other with first sweep trace, and source electrode links to each other with data line; The grid of second thin film transistor (TFT) links to each other with second sweep trace, and source electrode links to each other with public pressure wire; The drain electrode of the first film transistor, second thin film transistor (TFT) links to each other with pixel electrode; Second sweep trace of adjacent multirow links to each other and forms k demonstration block, 2≤k＜m/4, and m, n, k are natural number;
Scanning chip, for each the row pixel first sweep trace drive signal is provided;
Data chip is for the data line of each row pixel provides data-signal;
Generation circuit of scanning signals is for each shows that block provides drive signal;
Pcb board is for data chip provides control signal and data-signal, for the scanning chip provides control signal.
Above-mentioned display panels and driving method thereof, described generation circuit of scanning signals is arranged on the described pcb board.
The present invention is for solving the problems of the technologies described above the driving method that a kind of above-mentioned display panels also is provided, described driving method comprises the steps: a frame picture, first shows when block writes data, generation circuit of scanning signals is opened next and is shown that block charges into common electric voltage, circulation successively, last shows when block writes data that generation circuit of scanning signals is opened first and shown that block charges into common electric voltage.
The present invention contrasts prior art following beneficial effect: display panels of the present invention and driving method thereof increase a TFT in each pixel, and the viewing area is divided into k according to different rows shows block, each shows that block drives realization block black plug by generation circuit of scanning signals, improve dynamic ghost, improved display quality.
Description of drawings
Fig. 1 is an available liquid crystal display panel synoptic diagram.
Fig. 2 is a display panels synoptic diagram of the present invention.
Fig. 3 is a black plug sweep signal oscillogram among Fig. 2.
Fig. 4 is that a plurality of demonstration blocks of the present invention connect the driving synoptic diagram.
Fig. 5 is an actual effect synoptic diagram 1 of the present invention.
Fig. 6 is an actual effect synoptic diagram 2 of the present invention.
Fig. 7 is an actual effect synoptic diagram 3 of the present invention.
Among the figure:
1 first scanning chip, 2 second scanning chips, 3 data chips
4 scanning chip 5PCB plates, 6 generation circuit of scanning signals
13 the 3rd show that block 14 the 4th shows that block 15 the 5th shows block
16 the 6th show block Tr1 the first film transistor Tr 2 second thin film transistor (TFT)s
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Fig. 2 is a display panels synoptic diagram of the present invention.
See also Fig. 2, TFT panel of the present invention comprises the capable n row of m pixel, being rectangular is distributed on the display panels, each row pixel comprises the first sweep trace G1m and the second sweep trace G2m, each row pixel comprises a data line Dn, and each pixel comprises the first film transistor Tr 1 and the second thin film transistor (TFT) Tr2, wherein, the grid of the first film transistor Tr 1 links to each other with the first sweep trace G1m, and source electrode links to each other with data line Dn; The grid of the second thin film transistor (TFT) Tr2 links to each other with the second sweep trace G2m, and source electrode links to each other with public pressure wire; The drain electrode of the first film transistor Tr 1, the second thin film transistor (TFT) Tr2 links to each other with pixel electrode; The second sweep trace G2m of adjacent multirow link to each other to form k demonstration block, again by the array on the panel (Array) cabling S1, S2 ..., Sk links to each other with generation circuit of scanning signals 6.Wherein, show among the present invention that the number of block can be adjusted according to actual needs, show that the number of block is many more, the black plug effect is good more, but the array cabling S1, the S2 that need ..., Sk is also many more, generally gets 2≤k＜m/4, m, n, k are natural number.
Fig. 3 is a black plug sweep signal oscillogram among Fig. 2.
See also Fig. 3, to a frame picture, when first shows that block writes data, generation circuit of scanning signals is opened next and is shown that block charges into common electric voltage, circulation successively, last shows when block writes data that generation circuit of scanning signals is opened first and shown that block charges into common electric voltage.The rest may be inferred, last, and in the display frame of a frame, k demonstration block all realized the purpose of black plug.
Fig. 4 is that a plurality of demonstration blocks of the present invention connect the driving synoptic diagram.
See also Fig. 4, get k=6, promptly whole TFT panel 7 is divided into six along y direction and shows block, promptly first shows that block 11, second shows that block the 12, the 3rd shows that block the 13, the 4th shows that block the 14, the 5th shows that block 15 and the 6th shows block 16, as shown in Figure 4.For resolution is 1920 * 1080 TFT panel, and each shows that block has 180 scan signal lines to connect together, respectively by array cabling S1, S2 on the panel ..., S6 links to each other with generation circuit of scanning signals 6.Wherein, generation circuit of scanning signals 6 is arranged on pcb board 5 (printedcircuit board) plate.
Generation circuit of scanning signals 6 shows that for each block provides periodic drive signal, and its high voltage appearance is 23V, and low-voltage is-6V.When first shows that block 11 writes data-signal, array cabling S2 goes up output HIGH voltage, the transistor seconds of the second demonstration block 12 is opened, second shows that the liquid crystal capacitance at block 12 places charges into common electric voltage, be that pressure drop on the liquid crystal capacitance equals 0, second shows that block 12 is shown as black picture, and concrete display effect as shown in Figure 5.When second showed that block 12 begins to write data, array cabling S3 went up output HIGH voltage, and the 3rd shows that the liquid crystal capacitance at block 13 places charges into common electric voltage, and the 3rd shows that block 13 is shown as black picture, and concrete display effect as shown in Figure 6.The rest may be inferred, and when the 6th showed that block 16 begins to write data, array cabling S1 went up output HIGH voltage, and first shows that the liquid crystal capacitance at block 11 places charges into common electric voltage, and first shows that block 11 is shown as black picture.Each shows that block replaces black plug, and is last, and in the display frame of a frame, six demonstration blocks have all been realized the purpose of black plug.Specifically as shown in Figure 7, each demonstration block is driven by generation circuit of scanning signals and realizes the block black plug successively, has improved dynamic ghost, improves display quality.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.
Claims (3)
1. display panels comprises:
A plurality of pixels, the capable n row of m are rectangular and are distributed on the display panels, each row pixel comprises first sweep trace and second sweep trace, each row pixel comprises a data line, each pixel comprises the first film transistor and second thin film transistor (TFT), wherein, the transistorized grid of the first film links to each other with first sweep trace, and source electrode links to each other with data line; The grid of second thin film transistor (TFT) links to each other with second sweep trace, and source electrode links to each other with public pressure wire; The drain electrode of the first film transistor, second thin film transistor (TFT) links to each other with pixel electrode; Second sweep trace in the described display panels is divided into the k group and shows block to form k, and each shows that second sweep trace in the block is connected together, wherein, 2≤k＜m/4, m, n, k are natural number;
Scanning chip, for each the row pixel first sweep trace drive signal is provided;
Data chip is for the data line of each row pixel provides data-signal;
Generation circuit of scanning signals provides drive signal for each shows second sweep trace in the block;
Pcb board is for data chip provides control signal and data-signal, for the scanning chip provides control signal.
2. display panels according to claim 1 is characterized in that described generation circuit of scanning signals is arranged on the described pcb board.
3. the driving method of the described display panels of claim 1, it is characterized in that, described driving method comprises the steps: a frame picture, first shows when block writes data, generation circuit of scanning signals is opened next and is shown that block charges into common electric voltage, circulation successively, last shows when block writes data that generation circuit of scanning signals is opened first and shown that block charges into common electric voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102012031A CN101369408B (en) | 2008-10-15 | 2008-10-15 | LCD device and its driving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102012031A CN101369408B (en) | 2008-10-15 | 2008-10-15 | LCD device and its driving method |
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| Publication Number | Publication Date |
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| CN101369408A CN101369408A (en) | 2009-02-18 |
| CN101369408B true CN101369408B (en) | 2010-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102012031A Expired - Fee Related CN101369408B (en) | 2008-10-15 | 2008-10-15 | LCD device and its driving method |
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9105240B2 (en) * | 2009-05-09 | 2015-08-11 | Chen-Jean Chou | Structure of light emitting device array and drive method for display light source |
| CN102445796B (en) * | 2011-07-22 | 2014-03-26 | 深圳市华星光电技术有限公司 | Liquid crystal display device and black frame insertion method thereof |
| CN102385847B (en) * | 2011-10-25 | 2013-06-26 | 深圳市华星光电技术有限公司 | Liquid crystal display and driving method thereof |
| CN103676385B (en) * | 2013-12-27 | 2016-08-17 | 深圳市华星光电技术有限公司 | Dot structure |
| CN104867469B (en) * | 2015-06-08 | 2017-12-08 | 深圳市华星光电技术有限公司 | The display device of black plug can be carried out |
| 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 |
| CN105137675B (en) * | 2015-09-30 | 2018-01-12 | 深圳市华星光电技术有限公司 | A kind of array base palte and liquid crystal display panel |
| CN105700927B (en) * | 2016-01-15 | 2019-04-23 | 青岛海信移动通信技术股份有限公司 | Version upgrading method, terminal device and version server |
| CN108364608B (en) | 2018-05-25 | 2020-07-03 | 京东方科技集团股份有限公司 | OLED panel, driving method thereof and display device |
| KR102590013B1 (en) * | 2018-09-10 | 2023-10-16 | 엘지디스플레이 주식회사 | Display Device having the Black Image Inserting Function |
| CN110738973A (en) * | 2019-09-09 | 2020-01-31 | 福建华佳彩有限公司 | panel driving method |
| CN113066436A (en) * | 2021-03-26 | 2021-07-02 | 深圳市华星光电半导体显示技术有限公司 | Display panel, control method thereof and display device |
| CN117975906B (en) * | 2024-03-27 | 2024-07-19 | 惠科股份有限公司 | Display panel, display device and driving method of display panel |
| CN118155585B (en) * | 2024-05-10 | 2024-08-06 | 惠科股份有限公司 | Display panel |
| CN118335004A (en) * | 2024-06-12 | 2024-07-12 | 惠科股份有限公司 | Display control circuit, driving method thereof, display panel and display device |
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2008
- 2008-10-15 CN CN2008102012031A patent/CN101369408B/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
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| JP特开平5-224626A 1993.09.03 |
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| CN101369408A (en) | 2009-02-18 |
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Owner name: NANJING CEC PANDA LCD TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SVA (GROUP) CO., LTD. Effective date: 20110705 |
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Free format text: CORRECT: ADDRESS; FROM: 200233 3/F, NO. 757, YISHAN ROAD, XUHUI DISTRICT, SHANGHAI TO: 210038 NO. 9, HENGYI ROAD, NANJING ECONOMIC AND TECHNOLOGICAL DEVELOPMENT ZONE, NANJING CITY, JIANGSU PROVINCE |
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Effective date of registration: 20110705 Address after: 210038 Nanjing economic and Technological Development Zone, Jiangsu Province, Hengyi Road, No. 9, No. Patentee after: NANJING CEC PANDA LCD TECHNOLOGY Co.,Ltd. Address before: 200233, Shanghai, Yishan Road, No. 757, third floor, Xuhui District Patentee before: SVA OPTRONICS |
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