CN105225649A - A kind of pixel charging modes of display panels - Google Patents
A kind of pixel charging modes of display panels Download PDFInfo
- Publication number
- CN105225649A CN105225649A CN201510705452.4A CN201510705452A CN105225649A CN 105225649 A CN105225649 A CN 105225649A CN 201510705452 A CN201510705452 A CN 201510705452A CN 105225649 A CN105225649 A CN 105225649A
- Authority
- CN
- China
- Prior art keywords
- charging
- pixel
- time
- duration
- drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention provides a kind of pixel charging modes of display panels, each pixel cell is enclosed by a gate line and two data lines and is formed, this display panels adopts hG-2D type of drive: adjacent two gate lines are opened simultaneously, the signal of the pixel cell of each row is provided by two data lines simultaneously, on adjacent two gate lines, all pixel cells can charge simultaneously, described relative charging modes is: adjacent two gate lines are one group, one group of gate line opens twice, first time is precharge time, second time is the actual duration of charging, twice recurrent interval certain hour, the duration of charging defining each pixel cell is T, the actual duration of charging is t, T=+t precharge time, and described twice interpulse period is t.The present invention, under hG-2D drive pattern, by increasing precharge time, by changing precharge type of drive, avoiding undercharge while the duration of charging can be made to double or filling the generation of wrong electrical phenomena.
Description
Technical field
The present invention relates to the type of drive that in liquid crystal panel, hG-2D drives, particularly can make the raster data model mode that the duration of charging doubles.
Background technology
Along with large scale, high-res panel main flow increasingly, undercharge problem also becomes increasingly conspicuous.The method of solution undercharge problem conventional at present has the bilateral power of entering of Gate, precharge etc.
Fig. 1 is resolution, frame rate and the graph of a relation in duration of charging, and as shown in Figure 1, along with the increase of resolution or frame rate, the duration of charging is shorter and shorter, and undercharge problem also highlights thereupon.
Fig. 2 is 64.5 cun of liquid crystal panel schematic diagram, and as shown in Figure 2, the large size panel of high-res, adopts the bilateral power of the entering method of Gate to solve the problem of undercharge.
Fig. 3 is a kind of liquid crystal panel structure adopting the VA pattern of hG-2D type of drive and independent charge Compliance control, adopt pixel structure as shown in Figure 3 and precharge type of drive: in the VA multidomain dot structure of 1-gate2-data (1G-2D), article two, gate line is opened simultaneously, and the picture element signal of each row is provided by two data lines, wherein G is grid-ON signal line, and CS is that electric charge shares signal wire.Therefore, all pixel energies on two gate lines charge simultaneously, and often row pixel charging time doubles, and are equivalent to number of gates and reduce by half, and improve the charge rate of pixel further.Therefore this type of drive is called half-gate2-data (hG-2D), the type of drive shown in Fig. 3, and the type of drive in right figure is conventional row reversion precharge type of drive, at G
n/ G
n+1g is opened again after opening a period of time
n+2/ G
n+3, make G in advance
n+2/ G
n+3charge to certain voltage, G
n+2/ G
n+3again through charging to real screen voltage after a while.
As shown in fig. 1, the duration of charging after adopting hG-2D to drive under same frame rate doubles, and the UD resolution panel driven as adopted hG-2D is suitable with the FHD panel duration of charging not adopting hG-2D to drive, and efficiently solves the problem of charging ability deficiency.
Harsh picture view when Fig. 4 is hG-2D structure, picture shown in Fig. 4 is: a row pixel is successively by two, left and right positive and negative polarity data line D Interleaved control, odd-numbered line gate lines G controls the opening/closing of odd column data line, even number line gate lines G controls the opening/closing of even column data line, from input under upper black+, black ﹣, white+, white ﹣ cycle signal like this.
Be respectively shown in Fig. 5-Fig. 7 that double/tri-times/tetra-times of duration of charging are that relative 1-gate1-data (open by a gate line, the picture element signal of each row is provided by a data line, referred to as 1G1D type of drive) one times of duration of charging, wherein 1G1D mono-times of duration of charging t ' is defined as 1/ (grid number * frame rate).
The precharge time of Fig. 5 to Fig. 7 is that a relative pixel once opens total duration of charging T, for 1/3T and 1/2T precharge, is namely respectively and accounts for a pixel precharge time and open 1/3 and 1/2 of total duration of charging T.The data line signal of the employing in Fig. 5-7 is, odd column data line be black+, white+signal, so circulate; Even column data line is black ﹣, white ﹣ signal, so circulates, and wherein each signal opening time is the double-charge time.Arrange the 3rd row pixel (D1G3) and the 1st with the 1st to arrange the 5th row pixel (D1G5) and be charged as example, in Fig. 5, D1 is filled with white+signal to D1G3, black+signal is filled with next time again to D1G5, signal demand now in D1 from white+change into black+, signal pressure reduction is comparatively large, so Fig. 4 is harsh picture.Equally, the pixel of Fig. 6 is pixel precharge time of 1/3T, Fig. 7 precharge time is 1/2T, although although D1G3 and the D1G5 pixel of Fig. 6 and Fig. 7 has precharge, signal all need from white+change into black+, pressure reduction is the same very large.So although when adopting hG-2D type of drive as illustrated in figs. 5-7 to improve the problems referred to above, the duration of charging still falls short of, and still there will be the phenomenon of filling wrong electricity under harsh picture.
Moreover in order to pursue high aperture, further refinement gate line and data line live width, now charging problems will be more serious.
Summary of the invention
Object of the present invention by changing gate pre-charge type of drive, being avoided undercharge while the duration of charging can be made to double or being filled the generation of wrong electrical phenomena under hG-2D drive pattern.
The invention provides a kind of pixel charging modes of display panels, some gate lines are provided with in described display panels, some data lines and some pixel cells, each pixel cell is enclosed by a gate line and two data lines and is formed, this display panels adopts hG-2D type of drive: adjacent two gate lines are opened simultaneously, the signal of the pixel cell of each row is provided by two data lines simultaneously, on adjacent two gate lines, all pixel cells can charge simultaneously, described relative charging modes is: adjacent two gate lines open twice, first time is precharge time, second time is the actual duration of charging, twice recurrent interval certain hour, the duration of charging defining each pixel cell is T, the actual duration of charging is t, T=+t precharge time, and described twice interpulse period is t.
Wherein, described precharge time first time is 1/2t.
Wherein, the duration of charging that under definition 1G1D drive pattern, each pixel cell is opened is t ', wherein, and t=2t ', T=1/2t+t, so T=3t '.
Wherein, described precharge time first time is t.
Wherein, the duration of charging that under definition 1G1D drive pattern, each pixel cell is opened is t ', wherein, and t=2t ', T=t+t, so T=4t '.
Wherein, odd column data line D1, D3, D5 ... for black+, white+signal, so circulate; Even column data line D2, D4, D6 ... for black ﹣, white ﹣ signal, so circulate.
Wherein, the frequency under described hG-2D drive pattern is 240Hz.
Wherein, 1G1D type of drive is: one time a gate line is opened, and the picture element signal of each row is provided by a data line.
The present invention, under hG-2D drive pattern, by increasing precharge time, by changing gate pre-charge type of drive, avoiding undercharge while the duration of charging can be made to double or filling the generation of wrong electrical phenomena.
Accompanying drawing explanation
Fig. 1 is existing resolution, frame rate and the graph of a relation in duration of charging;
Fig. 2 is the schematic diagram of existing 64.5 cun of liquid crystal panels;
Fig. 3 is the VA panel construction of existing employing hG-2D type of drive and independent charge Compliance control;
Harsh picture view when Fig. 4 is existing hG-2D structure;
Fig. 5 is the waveform schematic diagram of the double-charge time of existing hG-2D type of drive;
Fig. 6 is the waveform schematic diagram in three times of duration of charging of existing employing hG-2D type of drive;
Fig. 7 is the waveform schematic diagram in four times of duration of charging of existing employing hG-2D type of drive;
Fig. 8 is the waveform schematic diagram that the present invention adopts three times of duration of charging of hG-2D type of drive;
Fig. 9 is the waveform schematic diagram that the present invention adopts four times of duration of charging of hG-2D type of drive.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
The present invention discloses a kind of pixel charging modes of display panels, some gate lines G are provided with in display panels, some data line D and some pixel cells, each pixel cell is enclosed by a gate line and two data lines and is formed, this display panels adopts hG-2D (half grid Double Data line: half-gate2-data) type of drive, adopt 240Hz frequency, hG-2D type of drive is: adjacent two gate lines are opened simultaneously, the signal of the pixel cell of each row is provided by two data lines simultaneously, on adjacent two gate lines, all pixel cells can charge simultaneously, and often row pixel charging time doubles, be equivalent to number of gates reduce by half, the charge rate of further raising pixel.
Data line signal is, odd column data line D1, D3, D5 ... for black+, white+signal, so circulate; Even column data line D2, D4, D6 ... for black ﹣, white ﹣ signal, so circulate, wherein each signal opening time is the double-charge time.
By by existing hG-2D drive pattern being: adjacent two gate lines are one group, it is precharge time that one group of gate line is opened at twice: the first, second time is the actual duration of charging, twice recurrent interval certain hour.
Wherein, defining the duration of charging that each pixel cell opens is T, and the actual duration of charging is t, wherein, t=2t ' (wherein t ' open for the next pixel of 1G1D drive pattern duration of charging), T=precharge time+the actual duration of charging.
Figure 8 shows that the first embodiment of present invention pixel charging modes: 1t (the i.e. double-charge time, the actual duration of charging) successively front: insert the precharge time of 1/2t and the shut-in time (time in twice recurrent interval) of 1t, carry out the actual duration of charging of 1t again, so under the hG-2D drive pattern of the present embodiment, the precharge time of the duration of charging T=1/2t that each pixel is opened and the actual duration of charging sum of 1t.
That is: T=1/2t+t, t=2/3T, t=2t ', so T=3t '
Compared with existing 1G1D, the duration of charging that each pixel of the present embodiment is opened is 3 times of the duration of charging that each pixel of existing 1G1D is opened.
That is, first adjacent two gate lines carry out the precharge time of 1/3T, then carry out the shut-in time of 2/3T, then carry out the 2/3T actual duration of charging, the voltage of data line within the duration of charging that pixel is opened be black+.
Gn+5 precharge period=the actual charge period (n >=0, integer) of 1/2Gn+1.
For D1G5 pixel, with in the 2/3T actual duration of charging in 1/3T precharge time of G5, data line voltage be black+, namely in D1G5 pixel charging process, pressure reduction is less, can avoid undercharge or fill the generation of wrong electrical phenomena.By that analogy, every pixel is all like this.
Figure 9 shows that the second embodiment of present invention pixel charging modes: by by existing hG-2D drive pattern being: 1t (the i.e. double-charge time, the actual duration of charging) successively front: insert the precharge time of 1t and the shut-in time of 1t, carry out the actual duration of charging of 1t again, wherein t=2t ' (wherein t ' open for pixel cell each under 1G1D drive pattern duration of charging), so under the hG-2D drive pattern of the present embodiment, the precharge time of the duration of charging T=1t that each pixel is opened and the actual duration of charging sum of 1t.
That is: T=1t+1t, t=1/2T, t=2t ', so T=4t '
Compared with existing 1G1D, the duration of charging that each pixel of the present embodiment is opened is 4 times of the duration of charging that each pixel of existing 1G1D is opened.
That is, first adjacent two gate lines carry out the precharge time of 1/2T, then carry out the shut-in time of 1/2T, then carry out the 1/2T actual duration of charging, the voltage of data line within the duration of charging that pixel is opened be black+.
Gn+5 precharge period=the actual charge period (n >=0, integer) of Gn+1
For G5D1 pixel, with in the 1/2T actual duration of charging in 1/2T precharge time of G5, data line voltage be black+, namely in G5D1 pixel charging process, pressure reduction is less, can avoid undercharge or fill the generation of wrong electrical phenomena.By that analogy, every pixel is all like this.
Claims (8)
1. the pixel charging modes of a display panels, some gate lines are provided with in described display panels, some data lines and some pixel cells, each pixel cell is enclosed by a gate line and two data lines and is formed, this display panels adopts hG-2D type of drive: adjacent two gate lines are opened simultaneously, the signal of the pixel cell of each row is provided by two data lines simultaneously, on adjacent two gate lines, all pixel cells can charge simultaneously, it is characterized in that, described relative charging modes is: adjacent two gate lines are one group, one group of gate line opens twice, first time is precharge time, second time is the actual duration of charging, twice recurrent interval certain hour, the duration of charging defining each pixel cell is T, the actual duration of charging is t, T=+t precharge time, and described twice interpulse period is t.
2. pixel charging modes according to claim 1, is characterized in that: described precharge time first time is 1/2t.
3. pixel charging modes according to claim 2, is characterized in that: the duration of charging that under definition 1G1D drive pattern, each pixel cell is opened is t ', wherein, and t=2t ', T=1/2t+t, so T=3t '.
4. pixel charging modes according to claim 1, is characterized in that: described precharge time first time is t.
5. pixel charging modes according to claim 4, is characterized in that: the duration of charging that under definition 1G1D drive pattern, each pixel cell is opened is t ', wherein, and t=2t ', T=t+t, so T=4t '.
6. the pixel charging modes according to claim 3 or 6, is characterized in that: 1G1D type of drive is: one time a gate line is opened, and the picture element signal of each row is provided by a data line.
7. pixel charging modes according to claim 1, is characterized in that: odd column data line D1, D3, D5 ... for black+, white+signal, so circulate; Even column data line D2, D4, D6 ... for black ﹣, white ﹣ signal, so circulate.
8. pixel charging modes according to claim 1, is characterized in that: the frequency under described hG-2D drive pattern is 240Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510705452.4A CN105225649A (en) | 2015-10-27 | 2015-10-27 | A kind of pixel charging modes of display panels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510705452.4A CN105225649A (en) | 2015-10-27 | 2015-10-27 | A kind of pixel charging modes of display panels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105225649A true CN105225649A (en) | 2016-01-06 |
Family
ID=54994560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510705452.4A Pending CN105225649A (en) | 2015-10-27 | 2015-10-27 | A kind of pixel charging modes of display panels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105225649A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107121862A (en) * | 2017-06-23 | 2017-09-01 | 深圳市华星光电技术有限公司 | Liquid crystal panel and its driving display methods |
| CN109377927A (en) * | 2018-11-05 | 2019-02-22 | Oppo（重庆）智能科技有限公司 | Driving method, driving circuit, display panel and storage medium |
| CN112885309A (en) * | 2021-04-16 | 2021-06-01 | 京东方科技集团股份有限公司 | Pixel charging method and device, display equipment and storage medium |
| US11636793B2 (en) | 2020-09-14 | 2023-04-25 | Beijing Boe Display Technology Co., Ltd. | Method of driving display, and display device |
| WO2024022190A1 (en) * | 2022-07-26 | 2024-02-01 | 京东方科技集团股份有限公司 | Display driving method, display substrate and display device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1488978A (en) * | 2002-07-26 | 2004-04-14 | 三星电子株式会社 | Liquidcrystal display with precharging configuration and producing method thereof |
| CN1567415A (en) * | 2003-06-27 | 2005-01-19 | 友达光电股份有限公司 | Pixel driving method of current driven active matrix organic light-emitting diode |
| CN101359143A (en) * | 2008-09-27 | 2009-02-04 | 上海广电光电子有限公司 | Liquid crystal display device and driving method thereof |
| CN102033368A (en) * | 2009-09-25 | 2011-04-27 | 北京京东方光电科技有限公司 | Thin film transistor liquid crystal display (TFT-LCD) array structure, driving device, driving method and liquid crystal display device |
| US20110141003A1 (en) * | 2009-12-11 | 2011-06-16 | Sunyoung Kim | Liquid crystal display |
| CN102455552A (en) * | 2010-10-19 | 2012-05-16 | 京东方科技集团股份有限公司 | Liquid crystal display device |
| CN203277386U (en) * | 2013-01-25 | 2013-11-06 | 京东方科技集团股份有限公司 | Organic light-emitting diode pixel structure and display apparatus |
| WO2013170591A1 (en) * | 2012-05-14 | 2013-11-21 | 京东方科技集团股份有限公司 | Method and device for driving liquid crystal display panel and liquid crystal display |
-
2015
- 2015-10-27 CN CN201510705452.4A patent/CN105225649A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1488978A (en) * | 2002-07-26 | 2004-04-14 | 三星电子株式会社 | Liquidcrystal display with precharging configuration and producing method thereof |
| CN1567415A (en) * | 2003-06-27 | 2005-01-19 | 友达光电股份有限公司 | Pixel driving method of current driven active matrix organic light-emitting diode |
| CN101359143A (en) * | 2008-09-27 | 2009-02-04 | 上海广电光电子有限公司 | Liquid crystal display device and driving method thereof |
| CN102033368A (en) * | 2009-09-25 | 2011-04-27 | 北京京东方光电科技有限公司 | Thin film transistor liquid crystal display (TFT-LCD) array structure, driving device, driving method and liquid crystal display device |
| US20110141003A1 (en) * | 2009-12-11 | 2011-06-16 | Sunyoung Kim | Liquid crystal display |
| CN102455552A (en) * | 2010-10-19 | 2012-05-16 | 京东方科技集团股份有限公司 | Liquid crystal display device |
| WO2013170591A1 (en) * | 2012-05-14 | 2013-11-21 | 京东方科技集团股份有限公司 | Method and device for driving liquid crystal display panel and liquid crystal display |
| CN203277386U (en) * | 2013-01-25 | 2013-11-06 | 京东方科技集团股份有限公司 | Organic light-emitting diode pixel structure and display apparatus |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107121862A (en) * | 2017-06-23 | 2017-09-01 | 深圳市华星光电技术有限公司 | Liquid crystal panel and its driving display methods |
| WO2018232808A1 (en) * | 2017-06-23 | 2018-12-27 | 深圳市华星光电技术有限公司 | Liquid crystal panel and method for driving display |
| CN107121862B (en) * | 2017-06-23 | 2020-04-10 | 深圳市华星光电技术有限公司 | Liquid crystal panel and driving display method thereof |
| CN109377927A (en) * | 2018-11-05 | 2019-02-22 | Oppo（重庆）智能科技有限公司 | Driving method, driving circuit, display panel and storage medium |
| CN109377927B (en) * | 2018-11-05 | 2022-03-01 | Oppo（重庆）智能科技有限公司 | Driving method, driving circuit, display panel and storage medium |
| US11636793B2 (en) | 2020-09-14 | 2023-04-25 | Beijing Boe Display Technology Co., Ltd. | Method of driving display, and display device |
| US11972717B2 (en) | 2020-09-14 | 2024-04-30 | Beijing Boe Display Technology Co., Ltd. | Method of driving display, and display device |
| US11990074B2 (en) | 2020-09-14 | 2024-05-21 | Beijing Boe Display Technology Co., Ltd. | Display driving method for increasing charging duration and display device |
| CN112885309A (en) * | 2021-04-16 | 2021-06-01 | 京东方科技集团股份有限公司 | Pixel charging method and device, display equipment and storage medium |
| WO2024022190A1 (en) * | 2022-07-26 | 2024-02-01 | 京东方科技集团股份有限公司 | Display driving method, display substrate and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103761944B (en) | Gate drive circuit, display device and drive method | |
| CN106683630B (en) | Pixel charging method and circuit | |
| CN105225649A (en) | A kind of pixel charging modes of display panels | |
| CN105469766B (en) | GOA circuit | |
| CN104751758B (en) | Can be with the display device of driven at low speed | |
| CN103985341B (en) | A kind of shift register cell, gate driver circuit and display device | |
| CN103413532B (en) | Pixel drive circuit, pixel drive method, array substrate and liquid display device | |
| CN105206237B (en) | GOA circuits applied to In Cell type touch-control display panels | |
| CN105206242B (en) | Drive circuit and its driving method, display panel | |
| CN104575419B (en) | Shift register and driving method thereof | |
| CN104317086A (en) | Method for driving liquid crystal display panel | |
| CN104916265B (en) | Liquid crystal display processing method, device and equipment | |
| CN100468510C (en) | Display device and driving device | |
| CN102467893B (en) | Liquid Crystal Display And Method For Driving | |
| CN103151005B (en) | Driving method of liquid crystal display | |
| CN104391411A (en) | LCD panel | |
| CN201266288Y (en) | Liquid crystal display device | |
| CN102778798B (en) | Liquid crystal display panel and display driving method | |
| CN107507597A (en) | Image display panel and grid drive circuit thereof | |
| CN103426415B (en) | The driving circuit of a kind of display panels and drive waveform method | |
| CN101359143A (en) | Liquid crystal display device and driving method thereof | |
| CN105489185A (en) | Driving device, display device and driving method | |
| CN110390903A (en) | Gate driving circuit and display device | |
| CN103474039B (en) | Grid line driving method, gate driver circuit and display device | |
| CN107492363A (en) | Driving device and driving method of display panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160106 |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160106 |