CN110136658A - A kind of both-end driving unit, method and liquid crystal display device - Google Patents
A kind of both-end driving unit, method and liquid crystal display device Download PDFInfo
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- CN110136658A CN110136658A CN201810132215.7A CN201810132215A CN110136658A CN 110136658 A CN110136658 A CN 110136658A CN 201810132215 A CN201810132215 A CN 201810132215A CN 110136658 A CN110136658 A CN 110136658A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of both-end driving units, applied to the display of picture element matrix, including the first data driver, the second data driver, scanner driver, sequence controller, data line, scan line；First data driver is used to load the first data-signal to the data line in first input end；Second data driver is used to load the second data-signal to the data line in the second input terminal；The scanner driver is for loading scanning signal to the scan line；Wherein, several data lines form breakpoint in first area, and the sequence controller controls first data driver or second data driver loads data-signal to the data line.Both-end driving unit of the invention avoids identical caused panel " split screen " phenomenon of data line open position, improves display effect and user experience.
Description
Technical field
The invention belongs to technical field of liquid crystal display, and in particular to a kind of both-end driving unit, method and liquid crystal display dress
It sets.
Background technique
Liquid crystal display, English abbreviation LCD, full name are Liquid Crystal Display, are to belong to plane to show
One kind of device.Screen for electronic equipments such as television set and computers is shown.The advantages of display screen is that power consumption is low, volume
It is small, radiation it is low.
As LCD panel size is increasing, resolution ratio is higher and higher, to guarantee pixel charging and Display panel image quality,
The driving of data line both-end is widely used, i.e., passes through two data drivers respectively from both ends pair at the both ends of liquid crystal display device
Panel sub-pixel charges, it is ensured that sub-pixel charging is complete and reduces the charging total time of a frame picture.
However, due to when charging to sub-pixel, the voltage of data line gradually successively decreases from both sides to centre, causes
Between the sub-pixel of position charging is led to not exclusively due to supply voltage deficiency, specifically, referring to Figure 1, Fig. 1 is existing driving side
Sub-pixel voltage variation diagram under formula, A point indicates under data driver A driving in figure, the sub-pixel voltage wave of first charging
Shape figure, A ' indicate that under data driver A ' driving, the sub-pixel voltage waveform diagram of the last one charging, B point is indicated in data
Under driver B driving, the sub-pixel voltage waveform diagram of first charging, B ' is indicated under data driver B ' driving, last
The sub-pixel voltage waveform diagram of a charging, wherein A ' and B ' is the sub-pixel that the last one is electrically charged, therefore voltage waveform compared with
Difference, charging is incomplete, however, data line design in both ends is different, and identical initial voltage is flowed to from A due to being both-end driving
A ' and B flow to B ' although linear distance be it is the same, the two path and data line width be it is discrepant, this results in A ' and B '
Sub-pixel charging voltage has biggish difference, the case where A ' waveform is better than B ' waveform occurs, reflects onto sub-pixel, is exactly A ' right
The sub-pixel luminence answered is bright in the corresponding sub-pixel of B ', and this species diversity makes user visually perceive significantly bright concealed wire effect
Fruit, namely " split screen " phenomenon, user experience are bad.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the present invention provides a kind of both-end driving unit, method and
Liquid crystal display device.The technical problem to be solved in the present invention is achieved through the following technical solutions:
The embodiment of the invention provides a kind of both-end driving units, applied to the display of picture element matrix, including the first data
Driver, the second data driver, scanner driver, sequence controller, data line, scan line；
First data driver is used to load the first data-signal to the data line in first input end；
Second data driver is used to load the second data-signal to the data line in the second input terminal；
The scanner driver is for loading scanning signal to the scan line；
Wherein, several data lines form breakpoint in first area, and the sequence controller controls first data
Driver or second data driver load data-signal to the data line.
In a specific embodiment, the sequence controller is also used to the position according to the breakpoint, controls described the
One data driver or second data driver load the first data-signal or the second data-signal to the data line.
In a specific embodiment, the first area includes several identical first units, each described first
Breakpoint is formed in unit.
In a specific embodiment, first unit is randomly distributed in the different location of the picture element matrix, and same
It only include a first unit on one data line.
In a specific embodiment, the picture element matrix includes m data line, n scan line, in every two consecutive numbers
There is a sub-pixel in the rectangular space being crossed to form according to line and every two adjacent scanning lines；
The width of the first area isArticle scan line and theBetween scan line, wherein n
For the item number of scan line, a, n, m are positive integer.
In a specific embodiment, the length of the first area is between the 1st data line and m data line
In range.
A kind of liquid crystal display device, including picture element matrix are also disclosed in a specific embodiment of the invention, further includes
Both-end driving unit as described in the present invention.
A kind of liquid crystal display device is also disclosed in a specific embodiment of the invention, a kind of both-end driving method is answered
Display for picture element matrix, comprising:
The first data-signal is loaded to the data line in first input end；
The second data-signal is loaded to the data line in the second input terminal；
Scanning signal is loaded to the scan line；
It loads first data-signal in first input end or loads second data-signal in the second input terminal and arrive
The data line；
Wherein, several data lines form the breakpoint in first area.
In a specific embodiment, the first area includes several identical first units, each described first
Breakpoint is formed in unit.
In a specific embodiment, the picture element matrix includes m data line, n scan line, in every two datas line
There is a sub-pixel in the rectangular space being crossed to form with every two scan lines；
The width of the first area is between n-th/2-a scan line and n-th/2+a scan line, wherein n is scanning
The item number of line, a, n, m are positive integer；
The length of the first area is between the 1st data line and m data line.
Compared with prior art, beneficial effects of the present invention:
Both-end driving unit of the invention is redesigned by the open position to data line, is generating concealed wire more
Serious region division first area, in first area, the position for disconnecting every data line be different from and as far as possible with
Machine distribution avoids identical caused panel " split screen " phenomenon of data line open position, improves display effect and user experience.
Detailed description of the invention
Fig. 1 is sub-pixel voltage variation diagram under existing driving method；
Fig. 2 is a kind of both-end driving uinit module schematic diagram provided in an embodiment of the present invention；
Fig. 3 is a kind of both-end driving method flow diagram provided in an embodiment of the present invention.
Specific embodiment
Further detailed description is done to the present invention combined with specific embodiments below, but embodiments of the present invention are not limited to
This.
Embodiment one
Fig. 2 is referred to, Fig. 2 is a kind of both-end driving panel module diagram provided in an embodiment of the present invention, is applied to picture
The display of prime matrix, the picture element matrix include multiple for showing the pixel of picture, including the first data driver 10, second
Data driver 20, scanner driver 30, sequence controller 40, data line 50, scan line 60；
First data driver 10 is used to load the first data-signal to the data line 50 in first input end；
Second data driver 20 is used to load the second data-signal to the data line 50 in the second input terminal；
The scanner driver 30 is for loading scanning signal to the scan line 60；
Wherein, several data lines 50 form breakpoint 80 in first area 70, and the sequence controller 40 controls described
First data driver 10 or second data driver 20 load data-signal to the data line 50.
In another embodiment, the sequence controller 40 is also used to the position according to the breakpoint 80, control
It makes first data driver 10 or second data driver 20 loads the first data-signal or the second data-signal arrives
The data line 50.
In both-end driving method, general there are two types of being implementation, one is each moment only to drive a scanning
Line loads scanning voltage, and scanning voltage timing is successively loaded on corresponding sub-pixel, and another kind is according to both-end driving method
It is specific, load scanning voltage respectively in the part that a data driver is driven, that is to say, that there are two synchronizations
Scanning voltage is loaded into corresponding sub-pixel, while also according to timing, in synchronization, there are two data for the data driver at both ends
On voltage-drop loading to corresponding sub-pixel.Certainly, specific driving method does not influence the implementation of the present invention program, as long as can be adapted to
The breakpoint that the present invention is arranged.
Existing panel design in, the sub-pixel numbers that two paths of data driver is driven be it is the same, i.e., one of them
The sub-pixel of data driver drive panel the upper, half of sub-pixel under another data driver drive panel, due to
Voltage signal can be lossy when transmitting step by step between sub-pixel, causes the sub-pixel of the position rearward of driving that cannot charge completely,
Electric discharge when brightness it is darker, both-end driving when, in the panel between two rows of sub-pixels driven respectively as two data drivers
The last one dynamic sub-pixel, intermediate region and both sides show that difference is more obvious when this leads to Display panel, in middle position
Place forms a horizontal concealed wire, influences user's viewing experience.
In both-end driving, it inevitably will appear and a data line is divided into two parts drives, it is two-part
Separation is used as breakpoint, and in traditional design, the position of breakpoint is in the midpoint of the data line, such as display panel is along number
3840 sub-pixels are shared according to line direction one, corresponding, breakpoint is just in 2/3840=1920 sub-pixel and 2/3840+1
Between=1921 sub-pixels, i.e., between 2/3840=1920 articles of scan line and the 2/3840+1=1921 articles scan line.
It is driven on one side of the breakpoint by the first data driver, another side is driven by the second data driver.If it is
Both-end is driven simultaneously, then signal of the sequence controller then according to the position of breakpoint, on the data line on Break point both sides
Input, is successively driven if it is both-end, then if according to timing, successively on-load voltage arrives sub-pixel, no matter using which kind of side
Formula, this inevitably results in the 1921st that the 1920th sub-pixel of the first data driver band load and the first data driver band carry
A sub-pixel is that the bright dark degree of most dark and the two is different, can intuitively feel that display panel is produced to user and " divide
Screen " phenomenon, hence it is evident that perceive the trace that upper and lower two parts have splicing.
First area of the present invention is the region that data line generates breakpoint, and the width in the region contains breakpoint and generates most
The position of distal end, length can be using whole scan lines as length, can also be using part of scanning line as length.
By taking a data tape carries 3840 sub-pixels as an example, the 1920th article of scan line will be shown with the 1921st article of scan line
Panel is divided into two parts symmetrical above and below, at this point, the present invention is according to actual needs, carries out to the breakpoint location on every data line
It is mobile, for example, the first data line top broken-point is arranged between the 1930th article of scan line and the 1931st article of scan line, Article 2 number
It is arranged between the 1927th article of scan line and the 1928th article of scan line according to line top broken-point, and so on, pass through the firstth area of setting
Domain, so that the position of every breakpoint is all in the first area, and irregular arrangement is presented in the position of breakpoint, so that each
The most dark point of sub-pixel is endless all in same a line on data line, therefore horizontal bright concealed wire phenomenon would not also occurs.
If the regularity of breakpoint distribution is too strong, in fact it could happen that the bright concealed wire phenomenon by lines of the rule, it is therefore preferable that
, random arrangement is preferably presented in breakpoint distribution, preferably to eliminate " split screen " phenomenon, for the layout of random distribution,
It can be obtained by auxiliary tools such as some random functions, random signal generators.From real effect on the whole from the point of view of, due to this
The concealed wire that the dim spot of original centralized displaying forms has been assigned to one so that breakpoint location is up and down by kind random arrangement
In scheduled display area, being equivalent to whole region averraged the defect of dim spot, therefore, if first area is bigger,
The pixel that averraged is more, more can reduce the reaction of defect, promotes whole display effect.
Above scheme according to the present invention is it is found that due to needing the arrangement to breakpoint to redistribute, and breakpoint determines
The sub-pixel numbers correspondence of the division position of one data line, the first data driver and the second data driver drive also can
It changes, therefore timing distribution of the sequence controller to two drivers can also change.For example, in a certain data line
In driving, when sub-pixel data of the sub-pixel numbers of the first data driver drive more than the driving of the second driver, timing
Controller is corresponded to and is adjusted, to adapt to the change of breakpoint location, equally previously according to the driving method of the data line
, also correspondence is adjusted in the driving of other data lines, when avoiding the occurrence of scan line unlatching, can be corresponded to correct data and be driven
Dynamic device, charges to sub-pixel.
Both-end driving unit of the invention is redesigned by the open position to data line, is generating concealed wire more
Serious region division first area, in first area, the position for disconnecting every data line be different from and as far as possible with
Machine distribution avoids identical caused panel " split screen " phenomenon of data line open position, improves display effect and user experience.
In a specific embodiment, the first area 70 includes several identical first units, each described the
Breakpoint is formed in Unit one.First unit is randomly distributed in the different location of the picture element matrix, and same data line 50
On only include a first unit.
For example, first area is divided into K identical units, the data line in each unit forms the disconnected of any arrangement
Point, K unit are arranged successively one complete first area of composition, by carrying out sub-unit layout to region, advantageously reduce
Panel process process complexity, improves efficiency.
In a specific embodiment, the picture element matrix includes m data line, n scan line, in every two consecutive numbers
There is a sub-pixel in the rectangular space being crossed to form according to line and every two adjacent scanning lines；
The width of the first area 70 isArticle scan line and theBetween scan line,
In, n is the item number of scan line, and a, n, m are positive integer.
In a specific embodiment, the length of the first area 70 is between the 1st data line and m data line
In the range of.
Such as the picture element matrix of one piece of panel includes 7680 data lines, 3840 scan lines, for a=20, in physics
Between 3840/2=1920 and 3840/2+1=1921 scan line, the width of first area may be provided at 1920- for heart position
Between 20=1900 to 1920+20=1940, in order to reach preferable display effect, the length of first area is from the of data line
One extends to the last item, which is all used as first area to realize the solution of the present invention.
Fig. 3 is referred to, Fig. 3 is a kind of both-end driving method flow diagram provided in an embodiment of the present invention, is applied to picture
The display of prime matrix, comprising:
The first data-signal is loaded to the data line in first input end；
The second data-signal is loaded to the data line in the second input terminal；
Scanning signal is loaded to the scan line；
It loads first data-signal in first input end or loads second data-signal in the second input terminal and arrive
The data line；
Wherein, several data lines form the breakpoint in first area.
In a specific embodiment, the first area includes several identical first units, each described first
Breakpoint is formed in unit.
In a specific embodiment, the picture element matrix includes m data line, n scan line, in every two consecutive numbers
There is a sub-pixel in the rectangular space being crossed to form according to line and every two adjacent scanning lines；
The width of the first area 70 isArticle scan line and theBetween scan line,
In, n is the item number of scan line, and a, n, m are positive integer, and the length of the first area 70 is in the 1st data line and the m articles number
Between line.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (10)
1. a kind of both-end driving unit, the display applied to picture element matrix, which is characterized in that including the first data driver
(10), the second data driver (20), scanner driver (30), sequence controller (40), data line (50), scan line (60)；
First data driver (10) is used to load the first data-signal to the data line (50) in first input end；
Second data driver (20) is used to load the second data-signal to the data line (50) in the second input terminal；
The scanner driver (30) is for loading scanning signal to the scan line (60)；
Wherein, several data lines (50) form breakpoint (80) in first area (70), sequence controller (40) control
First data driver (10) or second data driver (20) load data-signal to the data line (50).
2. both-end driving unit according to claim 1, which is characterized in that the sequence controller (40) is also used to basis
The position of the breakpoint (80) controls first data driver (10) or second data driver (20) load first
Data-signal or the second data-signal are to the data line (50).
3. both-end driving unit according to claim 1, which is characterized in that the first area (70) includes several identical
First unit (90), breakpoint is formed in each first unit (90).
4. both-end driving unit according to claim 3, which is characterized in that first unit is randomly distributed in the picture
The different location of prime matrix, and only include a first unit on same data line (50).
5. both-end driving unit according to claim 1, which is characterized in that the picture element matrix includes m data line, n
Scan line has a sub- picture in the rectangular space that every two adjacent data lines and every two adjacent scanning lines are crossed to form
Element；
The width of the first area (70) isArticle scan line and theBetween scan line, wherein n
For the item number of scan line, a, n, m are positive integer.
6. both-end driving unit according to claim 5, which is characterized in that the length of the first area (70) is the 1st
Between data line and m data line.
7. a kind of liquid crystal display device, including picture element matrix, which is characterized in that further include as described in claim any one of 1-6
Both-end driving unit.
8. a kind of both-end driving method, the display applied to picture element matrix characterized by comprising
The first data-signal is loaded to the data line in first input end；
The second data-signal is loaded to the data line in the second input terminal；
Scanning signal is loaded to the scan line；
First data-signal is loaded in first input end or loads second data-signal described in the second input terminal
Data line；
Wherein, several data lines form the breakpoint in first area.
9. both-end driving method according to claim 5, which is characterized in that the first area includes several identical
Unit one forms breakpoint in each first unit.
10. both-end driving method according to claim 5, which is characterized in that the picture element matrix includes m data line, n
Scan line has a sub-pixel in the rectangular space that every two datas line and every two scan lines are crossed to form；
The width of the first area is between n-th/2-a scan line and n-th/2+a scan line, wherein n is scan line
Item number, a, n, m are positive integer；
The length of the first area is between the 1st data line and m data line.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810132215.7A CN110136658A (en) | 2018-02-09 | 2018-02-09 | A kind of both-end driving unit, method and liquid crystal display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810132215.7A CN110136658A (en) | 2018-02-09 | 2018-02-09 | A kind of both-end driving unit, method and liquid crystal display device |
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| CN110136658A true CN110136658A (en) | 2019-08-16 |
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| CN201810132215.7A Pending CN110136658A (en) | 2018-02-09 | 2018-02-09 | A kind of both-end driving unit, method and liquid crystal display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022083347A1 (en) * | 2020-10-23 | 2022-04-28 | 京东方科技集团股份有限公司 | Array substrate and display apparatus |
| CN116453463A (en) * | 2023-04-27 | 2023-07-18 | 惠科股份有限公司 | Display panel and display terminal |
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| CN1675676A (en) * | 2002-08-02 | 2005-09-28 | 三星电子株式会社 | Liquid crystal display and driving method thereof |
| CN102097070A (en) * | 2009-12-11 | 2011-06-15 | 乐金显示有限公司 | Liquid crystal display |
| US20140055503A1 (en) * | 2012-08-21 | 2014-02-27 | Samsung Display Co., Ltd. | Display apparatus |
| CN106353908A (en) * | 2016-11-08 | 2017-01-25 | 深圳市华星光电技术有限公司 | Display panel and display device |
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| CN1675676A (en) * | 2002-08-02 | 2005-09-28 | 三星电子株式会社 | Liquid crystal display and driving method thereof |
| CN102097070A (en) * | 2009-12-11 | 2011-06-15 | 乐金显示有限公司 | Liquid crystal display |
| US20140055503A1 (en) * | 2012-08-21 | 2014-02-27 | Samsung Display Co., Ltd. | Display apparatus |
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Application publication date: 20190816 |