CN105355183B - Liquid crystal display driver system - Google Patents
Liquid crystal display driver system Download PDFInfo
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- CN105355183B CN105355183B CN201510916524.XA CN201510916524A CN105355183B CN 105355183 B CN105355183 B CN 105355183B CN 201510916524 A CN201510916524 A CN 201510916524A CN 105355183 B CN105355183 B CN 105355183B
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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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- Crystallography & Structural Chemistry (AREA)
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- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of liquid crystal display driver system, the liquid crystal display driver system includes time schedule controller and memory, time schedule controller is used to receive view data and reads default gray scale compensation value in memory, the time schedule controller includes resolution detecting circuit and the two dimensional image gray scale compensation circuit and 3-D view gray scale compensation circuit that are electrically connected with the resolution detecting circuit, resolution detecting circuit is used for the type for detecting described image data, if view data is two-dimensional image data, gray scale compensation processing is then carried out by two dimensional image gray scale compensation circuit；If view data is 3 d image data, gray scale compensation processing is carried out by 3-D view gray scale compensation circuit.The liquid crystal display driver system can make liquid crystal display panel have preferable brightness uniformity when showing 3-D view, and then improve the quality of the liquid crystal display panel.
Description
Technical field
The present invention relates to field of liquid crystal display, more particularly to a kind of liquid crystal display driver system.
Background technology
Liquid crystal display panel plays more and more important role in living now, and liquid crystal display panel need to be by multiple
Miscellaneous display driving system realizes its display function.Because the processing procedure of liquid crystal display panel is more complicated, it is more technologic not
Foot easily causes the display brightness for the liquid crystal display panel produced uneven, forms various moir patterns (Mura),
Influence the display effect of liquid crystal display panel.In order to lift the uniformity of the display brightness of liquid crystal display panel, generally use ash
The method that rank value complement is repaid, for example, in the peripheral regions of liquid crystal display panel, shot using high resolution camera in 0~255 GTG
The form of the moir patterns of several GTGs, such as respectively choose a GTG in low GTG, middle GTG and high gray region and shot,
And contrasted the brightness of taken moir patterns and the brightness of central area, calculate brightness and the center of peripheral regions
The difference of the brightness in region.According to the difference of the brightness of peripheral regions and the brightness of central area, to the region of moir patterns be present
Corresponding grey decision-making compensates, i.e.,：The region brighter than central area, reduces its grey decision-making, makes the region dimmed；Compare center
The dark region in region, improves its grey decision-making, the region is brightened.Compare so that the whole display surface of liquid crystal display panel reaches
Consistent brightness.
Existing grey decision-making compensation technique is developed only for the display of two dimensional image, for example, being 3840* for resolution ratio
2160 liquid crystal display driver system, the GTG that memory only stores corresponding to the summit in each 8*8 pixel regions upper left corner are mended
Data are repaid, i.e., store 481*271 gray scale compensation data altogether, are 3840*2160's when time schedule controller receives resolution ratio
After view data, by linear interpolation algorithm, the GTG that each pixel is calculated by 481*271 gray scale compensation data is mended
Repay data, and correspondingly per a line view data by the gray scale compensation data by rows, a line gray scale compensation data corresponding one
Row view data, i.e. gray scale compensation data correspond with view data, that is, share 2160 row gray scale compensation data.
In actual applications, when liquid crystal display panel shows the situation of 3-D view, due to the data volume of 3-D view
Excessively huge, the input and output signal of time schedule controller is no longer the view data that resolution ratio is 3840*2160, and is typically
Resolution ratio is 3840*540 view data.After every a line (totally 540 row) view data is transferred to data driver, scanning is driven
Dynamic device opens 4 scan lines simultaneously, and it is 3840* that the 3 d image data that most resolution ratio is 3840*540 at last, which is shown in resolution ratio,
On 2160 liquid crystal display panel.And in the case of two dimensional image is shown, show per picture corresponding to a line two-dimensional image data
The one-row pixels region of liquid crystal display panel is shown in, if however, according to the gray level compensation method that two dimensional image is shown to differentiating
The 3 d image data that rate is 3840*540 carries out gray scale compensation, then only 540 row gray scale compensation data are effective in memory, if
540 row gray scale compensation data are read in order, then can make the compensation model deformation to 3 d image data, so as to not reach expection
Compensation effect, it is difficult to Mura phenomenons are eliminated, so as to cause display brightness of the liquid crystal display panel when showing 3-D view uneven
It is even.
The content of the invention
The technical problems to be solved by the invention are, there is provided a kind of liquid crystal display driver system, the liquid crystal display are driven
Dynamic system can make liquid crystal display panel have preferable brightness uniformity when showing 3-D view, and then improve the liquid
The quality of LCD panel.
In order to solve the above-mentioned technical problem, the present invention uses following technical scheme：
The present invention provides a kind of liquid crystal display driver system, the liquid crystal display driver system include time schedule controller and with
The memory of time schedule controller electrical connection, gray scale compensation value is preset with the memory, the time schedule controller receives
View data and read default gray scale compensation value in the memory, the time schedule controller include resolution detecting circuit with
And the two dimensional image gray scale compensation circuit and 3-D view gray scale compensation circuit electrically connected with the resolution detecting circuit, it is described
Resolution detecting circuit receives described image data and judges the type of described image data, if described image data are X-Y schemes
As data, then the resolution detecting circuit exports the initial grey decision-making in described image data to the two dimensional image GTG
Compensation circuit, the two dimensional image gray scale compensation circuit obtain corresponding according to the initial grey decision-making and the gray scale compensation value
Correct grey decision-making；If described image data are 3 d image datas, the resolution detecting circuit is by described image data
Initial grey decision-making export to the 3-D view gray scale compensation circuit, the 3-D view gray scale compensation circuit according to it is described just
Beginning grey decision-making and the gray scale compensation value obtain corresponding amendment grey decision-making.
Wherein, the liquid crystal display driver system also includes liquid crystal display panel, and the liquid crystal display panel includes multiple
Pixel region, multiple pixel regions are in rectangular arrangement, preset a numerical tabular in the memory, the numerical tabular includes
The tactic gray scale compensation value of multirow, gray scale compensation value described in per a line correspond to pixel region described in a line.
Wherein, the gray scale compensation value in the numerical tabular includes prestore gray scale compensation value and computing gray scale compensation value, described
The gray scale compensation that prestores value is pre-stored within the memory, the gray scale compensation value that prestores include pixel region described in Nth row with
Gray scale compensation value corresponding to the pixel region of the intersection of pixel region described in Nth column, N=1+ (i-1) d, wherein, i
For the integer more than or equal to 1, d is a fixed value, and d is positive integer；The computing gray scale compensation value is by Nth row, N+d
The gray scale compensation value corresponding to any pixel point that the pixel region of row, Nth column and N+d row is surrounded, by relational expression
Calculate and obtain, wherein G is the computing gray scale compensation value, and x is any pixel point and picture described in Nth row and Nth column
The distance of the intersection in plain region in the row direction, y are intersecting for any pixel point and pixel region described in Nth row and Nth column
The distance of place in a column direction, A are Nth row and the gray scale compensation value that prestores of the intersection of pixel region described in Nth column, and B is N
Row arranges the gray scale compensation value that prestores of the intersection of the pixel region with N+d, and C is Nth column and pixel region described in N+d rows
Intersection the gray scale compensation value that prestores, D is that the GTG that prestores for the intersection that N+d rows and N+d arrange the pixel region is mended
Repay value.
Wherein, when described image data are two-dimensional image datas, the two dimensional image gray scale compensation circuit is in order from institute
To state and the gray scale compensation value is read in memory, gray scale compensation value described in line n corresponds to line n described image data, wherein, n
For the integer more than or equal to 1, the two dimensional image gray scale compensation circuit is according to gray scale compensation value described in line n and line n institute
State and correct grey decision-making described in the acquisition line n of the initial grey decision-making in view data.
Wherein, when described image data are 3 d image datas, the 3-D view gray scale compensation circuit is in order from institute
State and the gray scale compensation value is read in memory, and gray scale compensation value corresponds to 3-D view number described in line n described in 4n-3 rows
According to, wherein, n is greater than or equal to 1 integer, and the 3-D view gray scale compensation circuit is according to GTG described in the 4n-3 rows
Offset obtains with the initial grey decision-making in 3 d image data described in line n and corrects grey decision-making described in line n.
Wherein, when described image data are 3 d image datas, the 3-D view gray scale compensation circuit is in order from institute
State and the gray scale compensation value is read in memory, and gray scale compensation value corresponds to 3-D view number described in line n described in 4n-2 rows
According to, wherein, n is the integer more than or equal to 1, and the 3-D view gray scale compensation circuit is according to GTG described in the 4n-2 rows
Offset obtains with the initial grey decision-making in 3 d image data described in line n and corrects grey decision-making described in line n.
Wherein, when described image data are 3 d image datas, the 3-D view gray scale compensation circuit is in order from institute
State and the gray scale compensation value is read in memory, and gray scale compensation value corresponds to 3-D view number described in line n described in 4n-1 rows
According to, wherein, n is the integer more than or equal to 1, and the 3-D view gray scale compensation circuit is according to GTG described in the 4n-1 rows
Offset obtains with the initial grey decision-making in 3 d image data described in line n and corrects grey decision-making described in line n.
Wherein, when described image data are 3 d image datas, the 3-D view gray scale compensation circuit is in order from institute
State and the gray scale compensation value is read in memory, and gray scale compensation value corresponds to 3 d image data described in line n described in 4n rows,
Wherein n is the integer more than or equal to 1, and the 3-D view gray scale compensation circuit is according to gray scale compensation value described in the 4n rows
Obtained with the initial grey decision-making in 3 d image data described in line n and correct grey decision-making described in line n.
Wherein, the liquid crystal display driver system also includes data driver, the data driver and the sequential control
Device processed is electrically connected with, and the time schedule controller also includes D/A converting circuit, and the D/A converting circuit is by the amendment GTG
Value is converted to primary simulation voltage, and by the primary simulation voltage output to the data driver.
Wherein, the liquid crystal display driver system also include the gamma circuit that is electrically connected with the data driver and with institute
The scanner driver of time schedule controller electrical connection is stated, the time schedule controller is to the scanner driver output control signal, institute
Gamma circuit output calibration voltage is stated to the data driver, the amendment ash is obtained to correct the primary simulation voltage
The corresponding gamma electric voltage of rank value.
Compared with prior art, technical scheme at least has the advantages that：
The time schedule controller of the liquid crystal display driver system of the present invention includes resolution detecting circuit, two dimensional image GTG is mended
Circuit and 3-D view gray scale compensation circuit are repaid, the resolution detecting circuit is used to detect the view data from host computer system
Type, if described image data are two-dimensional image datas, the resolution detecting circuit is by the institute in described image data
State initial grey decision-making to export to the two dimensional image gray scale compensation circuit, the two dimensional image gray scale compensation circuit is according to described first
Beginning grey decision-making and the gray scale compensation value correct grey decision-making corresponding to obtaining, if described image data are 3 d image datas,
The resolution detecting circuit exports the initial grey decision-making to the 3-D view gray scale compensation circuit, the 3-D view
Gray scale compensation circuit obtains corresponding amendment grey decision-making according to the initial grey decision-making and the gray scale compensation value.I.e.：The present invention
In same time schedule controller simultaneously include two dimensional image gray scale compensation circuit and 3-D view gray scale compensation circuit so that when
Described image data are carried out targetedly by two dimensional image gray scale compensation circuit when sequence controller receives two-dimensional image data
Gray scale compensation processing, when time schedule controller receives 3 d image data by 3-D view gray scale compensation circuit to the figure
Handled as data carry out targetedly gray scale compensation, so that liquid crystal display panel is when showing two dimensional image and 3-D view
It can guarantee that the uniformity of display brightness.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the circuit diagram of liquid crystal display driver system provided in an embodiment of the present invention；
Fig. 2 is the structural representation of the pixel region of liquid crystal display panel provided in an embodiment of the present invention；And
Fig. 3 is the structural representation of the pixel region assembled unit of liquid crystal display panel provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all on the premise of creative work is not made
Other embodiments, belong to the scope of protection of the invention.
In addition, the explanation of following embodiment is with reference to additional diagram, the spy implemented to illustrate the present invention can be used to
Determine embodiment.The direction term being previously mentioned in the present invention, for example, " on ", " under ", "front", "rear", "left", "right", " interior ",
" outer ", " side " etc., only it is the direction with reference to annexed drawings, therefore, the direction term used is to more preferably, more clearly say
It is bright and understand the present invention, rather than instruction or infer the device of meaning or element and must have specific orientation, with specific side
Position construction and operation, therefore be not considered as limiting the invention.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or detachably connected, or integratedly be connected
Connect；Can mechanically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood with concrete condition
Body implication.
In addition, in the description of the invention, unless otherwise indicated, " multiple " are meant that two or more.If this
Occurring the term of " process " in specification, it refers not only to independent process, when can not clearly be distinguished with other processes, as long as
It can realize that the effect desired by the process is then also included within this term.In addition, the numerical value model represented in this specification with "~"
Enclose the scope for referring to that "~" front and rear numerical value recorded is included as minimum value and maximum.In the accompanying drawings, structure
Similar or identical unit is indicated by the same numeral.
Referring to Fig. 1, Fig. 1 is the circuit diagram of liquid crystal display driver system provided in an embodiment of the present invention.In this hair
In bright embodiment, what liquid crystal display driver system was electrically connected with including time schedule controller 100 and with the time schedule controller 100
Memory 200, wherein, the time schedule controller 100 receives view data, the memory from a host computer system (not shown)
Preset gray scale offset in 200.The time schedule controller 100 reads default gray scale compensation value in the memory 200, and root
Corresponding amendment grey decision-making is obtained according to the initial grey decision-making in the gray scale compensation value and described image data.It is preferred that
In embodiments of the invention, the memory 200 can be a flash storage, and it can muchly keep the gray scale compensation
Value.
In an embodiment of the present invention, the time schedule controller 100 includes resolution detecting circuit 110, and with it is described
The two dimensional image gray scale compensation circuit 120 and 3-D view gray scale compensation circuit 130 that resolution detecting circuit 110 is electrically connected with.
The resolution detecting circuit 110 is used for the type for detecting the view data from host computer system, that is, judges described image data
It is two-dimensional image data or 3 d image data.In another embodiment, the resolution detecting circuit 110 can also basis
The size of image resolution ratio judges that described image data are two-dimensional image data or 3 d image data.If described image data
It is two-dimensional image data, then the resolution detecting circuit 110 exports the initial grey decision-making in described image data to described
Two dimensional image gray scale compensation circuit 120, then the two dimensional image gray scale compensation circuit 120 is according to the initial grey decision-making and described
Gray scale compensation value obtains corresponding amendment grey decision-making；If described image data are 3 d image datas, the resolution detecting
Circuit 110 exports the initial grey decision-making to the 3-D view gray scale compensation circuit 130, then the 3-D view GTG is mended
Repay circuit 130 and obtain corresponding amendment grey decision-making according to the initial grey decision-making and the gray scale compensation value.
Specifically, the liquid crystal display driver system also includes liquid crystal display panel 600, and the liquid crystal display panel includes
Multiple pixel regions 610, as shown in Fig. 2 multiple pixel regions 610 are in rectangular arrangement, preset in the memory 200
One numerical tabular, the numerical tabular include the tactic gray scale compensation value of multirow, and gray scale compensation value described in per a line corresponds to a line
The pixel region 610, i.e., pixel region 610, GTG described in the 2nd row are mended described in corresponding 1st row of gray scale compensation value described in the 1st row
Pixel region 610 described in corresponding 2nd row of value is repaid, the rest may be inferred, and gray scale compensation value corresponds to pixel region described in line n described in line n
Domain 610, wherein, n is the integer more than or equal to 1.
In one embodiment, the gray scale compensation value in the 200 default numerical tabular of memory includes the GTG that prestores
Offset and computing gray scale compensation value, wherein, the gray scale compensation value that prestores is pre-stored within the memory.The ash that prestores
Rank offset is included corresponding to the pixel region of the intersection of pixel region described in pixel region described in Nth row and Nth column
Gray scale compensation value, N is the numerical value in arithmetic progression, i.e. N=1+ (i-1) d, wherein, i is integer more than or equal to 1, and d is
Tolerance, i.e. d are a fixed value, and d is positive integer.I.e.：The memory combines single using d*d pixel region as a pixel region
Member 611, the gray scale compensation value that prestores, and the gray scale compensation value pair that prestores are stored for each pixel region assembled unit 611
Should be in the pixel region of the top left corner apex of the pixel region assembled unit 611.That is,：Since the 1st row and the 1st row, every
Every d rows and d row, the gray scale compensation value that prestored described in one is set.For example, as i=1, N=1；As i=2, N=1+d；Work as i=
When 3, N=1+2d ..., by that analogy.
The computing gray scale compensation value is gray scale compensation corresponding to any pixel point in the pixel region assembled unit 611
Value.As shown in figure 3, the structure that Fig. 3 is the pixel region assembled unit 611 of liquid crystal display panel provided in an embodiment of the present invention is shown
It is intended to.Gray scale compensation value corresponding to any pixel point in the pixel region assembled unit 611, be by Nth row, N+d rows,
Gray scale compensation value corresponding to any pixel point that the pixel region 610 of Nth column and N+d row is surrounded, can be by relational expression
Calculate and obtain, wherein, G is the computing gray scale compensation value (any picture in i.e. described pixel region assembled unit 611
Gray scale compensation value corresponding to vegetarian refreshments), x is any pixel point and pixel region described in Nth row in the pixel region assembled unit 611
The distance of the intersection of pixel region in the row direction described in domain and Nth column, y are to appoint in the pixel region assembled unit 611
The distance of the intersection of pixel region in a column direction described in pixel region described in one pixel and Nth row and Nth column, A is N
The gray scale compensation value that prestores of the row pixel region and the pixel region of the intersection of pixel region described in Nth column
(the gray scale compensation value that prestores of the top left corner apex of the pixel region assembled unit 611 i.e. where any pixel point), B is Nth row
The pixel region and N+d arrange the gray scale compensation value that prestores of the pixel region of the intersection of the pixel region, C the
N arranges the gray scale compensation value that prestores of the pixel region of the intersection of pixel region described in the pixel region and N+d rows, D
The gray scale compensation value that prestores of the pixel region of the intersection of the pixel region is arranged for N+d rows and N+d.A, B, C and D
Corresponding position is referring to Fig. 3, its specific embodiment only of the invention, to the present invention and is not specifically limited.
For example, resolution ratio is 3840*2160 two-dimensional image data, the liquid crystal display that corresponding resolution ratio is 3840*2160
Panel, it is 8 by d values, then the memory 200 is unit with 8*8 pixel region 610, i.e., only stores each 8*8 pixel regions
The gray scale compensation value of the pixel region 610 in the upper left corner of domain assembled unit 611, i.e., the described corresponding each 8*8 pixel regions of memory 200
The pixel region 610 in the upper left corner of domain assembled unit 611 sets the gray scale compensation value that prestores, and stores 481*271 altogether and prestores
Gray scale compensation value.When time schedule controller 100 receives the two-dimensional image data that the resolution ratio from host computer system is 3840*2160
Afterwards, each pixel region is calculated by the 481*271 gray scale compensation values that prestore by linear interpolation algorithm in memory 200
610 gray scale compensation value, obtain correcting grey decision-making after carrying out computing with described image data, so as to ensure liquid crystal display panel
600 brightness uniformity.As shown in figure 3, in a certain 8*8 pixel regions any pixel point gray scale compensation value G, i.e. Nth row,
N+d rows, Nth column and N+d arrange gray scale compensation value corresponding to any pixel point that the pixel region 610 is surrounded, the pixel
The distance put with the top left corner apex of the 8*8 pixel regions assembled unit 611 where it on line direction and column direction is respectively x
And y.The gray scale compensation value G of the pixel and the 8*8 pixel regions assembled unit 611 where the pixel top left corner apex institute
The corresponding gray scale compensation value that prestores, and the top left corner apex of adjacent three 8*8 pixel regions assembled unit 611 correspond to respectively
Prestore gray scale compensation value B, C and D it is related, i.e.,
,
That is, the computing gray scale compensation value is equal to G.
In the present embodiment, if it is two-dimensional image data that the resolution detecting circuit 110, which detects described image data,
The resolution detecting circuit 110 exports the two-dimensional image data to the two dimensional image gray scale compensation circuit 120, described
Two dimensional image gray scale compensation circuit 120 reads the gray scale compensation value, ash described in line n from the memory 200 in order
Rank offset corresponds to line n described image data, wherein, n is integer more than or equal to 1, the two dimensional image gray scale compensation
Circuit 120 obtains the according to the initial grey decision-making in two-dimensional image data described in gray scale compensation value described in line n and line n
Grey decision-making is corrected described in n rows.For example, when the resolution detecting circuit 110 detects the view data of input timing controller
When being 3840*2160 two-dimensional image data for resolution ratio, the two dimensional image gray scale compensation circuit 120 is from the memory
The gray scale compensation value is read in 200, gray scale compensation value described in the 1st row is supplied to two-dimensional image data described in the 1st row, the 2nd row
The gray scale compensation value is supplied to two-dimensional image data described in the 2nd row, and gray scale compensation value described in the 3rd row is supplied to described in the 3rd row
Two-dimensional image data, the rest may be inferred, until gray scale compensation data described in the 2160th row are supplied into X-Y scheme described in the 2160th row
As data.So that the initial grey decision-making in two-dimensional image data described in per a line is compensated, so as to obtain 2160 row amendments
Grey decision-making, ensure the uniformity of the display brightness of the display panel.
If it is 3 d image data that the resolution detecting circuit 110, which detects described image data, the resolution ratio
Circuit for detecting 110 exports the 3 d image data to the 3-D view gray scale compensation circuit 130, the 3-D view ash
Rank compensation circuit 130 reads the gray scale compensation value, n-th+3 (n-1) row gray scale compensation value from the memory 200 in order
3 d image data described in corresponding line n, i.e., gray scale compensation value corresponds to 3 d image data described in line n described in 4n-3 rows,
Wherein, n is greater than or equal to 1 integer, and the 3-D view gray scale compensation circuit 130 is according to GTG described in the 4n-3 rows
Offset obtains with the initial grey decision-making in 3 d image data described in line n and corrects grey decision-making described in line n.For example,
When the view data that the resolution detecting circuit 110 detects input timing controller 100 is that resolution ratio is 3840*540
During 3 d image data, the 3-D view gray scale compensation circuit 130 reads the gray scale compensation from the memory 200
Value, gray scale compensation value described in the 1st row are supplied to 3 d image data described in the 1st row, and gray scale compensation value described in the 5th row is supplied to the
3 d image data described in 2 rows, gray scale compensation value described in the 9th row are supplied to 3 d image data described in the 3rd row, described in the 13rd row
Gray scale compensation value is supplied to 3 d image data described in the 4th row, and the rest may be inferred, until gray scale compensation value described in the 2157th row is carried
Supply 3 d image data described in the 540th row.So that the initial GTG in 3 d image data described in per a line is worth to benefit
Repay, so as to obtain 540 row amendment grey decision-makings, make the display brightness of the display panel uniform.
The driving process of liquid crystal display driver system in the present embodiment will be described below.
Still referring to Fig. 1, in the present embodiment, the liquid crystal display driver system also includes data driver 300, described
Data driver 300 is connected with the time schedule controller 100.The time schedule controller 100 also includes D/A converting circuit 140,
I.e. described time schedule controller 100 includes resolution detecting circuit 110, two dimensional image gray scale compensation circuit 120,3-D view GTG
Compensation circuit 130 and D/A converting circuit 140, wherein, the two dimensional image gray scale compensation circuit 120 and 3-D view GTG are mended
Repay circuit 130 and be electrically connected at the resolution detecting circuit 110 and the D/A converting circuit 140.The time schedule controller
After 100 receive the view data from host computer system, the resolution detecting circuit 110 of the time schedule controller 100 is to the figure
As data are detected, to judge that described image data are two-dimensional image data or 3 d image data.
If it is two-dimensional image data that the resolution detecting circuit 110, which detects described image data, the resolution ratio
Circuit for detecting 110 transmits the two-dimensional image data to the two dimensional image gray scale compensation circuit 120, the two dimensional image ash
Rank compensation circuit 120 reads the gray scale compensation value from the memory 200 in order, gray scale compensation value pair described in line n
Line n described image data are answered, wherein, n is integer more than or equal to 1, the foundation of two dimensional image gray scale compensation circuit 120
The line n gray scale compensation value obtains with the initial grey decision-making in the line n view data and corrects GTG described in line n
Value.The two dimensional image gray scale compensation circuit 120 exports the amendment grey decision-making to the D/A converting circuit 140.It is described
The amendment grey decision-making is converted to primary simulation voltage by D/A converting circuit 140, and is exported to the data driver 300.
If it is 3 d image data that the resolution detecting circuit 110, which detects described image data, the resolution ratio
The 3 d image data is transferred to the 3-D view gray scale compensation circuit 130, the 3-D view ash by circuit for detecting 110
Rank compensation circuit 130 reads the gray scale compensation value, gray scale compensation value pair described in the 1st row from the memory 200 in order
3 d image data described in the 1st row is answered, n-th+3 (n-1) row gray scale compensation value corresponds to 3 d image data described in line n, i.e., and
Gray scale compensation value corresponds to 3 d image data described in line n described in 4n-3 rows, wherein, n is the integer more than or equal to 1, described
3-D view gray scale compensation circuit 130 is according in 3 d image data described in gray scale compensation value described in 4n-3 rows and line n
The initial grey decision-making obtains corrects grey decision-making described in line n.The 3-D view gray scale compensation circuit 130 is grey by the amendment
Rank value is exported to the D/A converting circuit 140.The amendment grey decision-making is converted to introductory die by the D/A converting circuit 140
Intend voltage, and export to the data driver 300.
Still referring to Fig. 1, the liquid crystal display driver system also includes gamma circuit 400 and scanner driver 500.Institute
State time schedule controller 100 to be connected with the data driver 300 and the scanner driver 500 respectively, the time schedule controller
100 are used to export simulation initial voltage to the data driver 300, and to the output control signal of scanner driver 500.
The gamma circuit 400 is connected with the data driver 300, the output calibration voltage of gamma circuit 400 to the data
Driver 300, the gamma electric voltage corresponding to the amendment grey decision-making is obtained to correct the simulation initial voltage.The liquid crystal
Display panel 600 is connected with the data driver 300 and the scanner driver 500 respectively, the scanner driver 500
The turntable driving line of the liquid crystal display panel 600 is opened according to control signal, then the data driver 300 is grey by the amendment
Gamma voltage corresponding to rank value exports the turntable driving line being had already turned on into the liquid crystal display panel 600.Described image number
According to for two-dimensional image data when, the scanner driver 500 is to open a turntable driving per two-dimensional image data described in a line
Line, pixel region described in corresponding a line；When described image data are 3 d image data, the scanner driver 500 is every
3 d image data described in a line opens four turntable driving lines of the liquid crystal display panel 600, the corresponding liquid crystal display
Pixel region 610 described in four rows of panel 600.
The gamma voltage corresponding to the amendment grey decision-making is transported to the liquid crystal display by the data driver 300
The turntable driving line opened in panel 600, and drive the liquid crystal of the liquid crystal display panel 600 to overturn or make liquid crystal optically
Anisotropy, make the display of liquid crystal display panel 600 brightness corresponding with the amendment grey decision-making, so as to improve the liquid crystal
The brightness uniformity of display panel 600.
In the present embodiment, because time schedule controller includes resolution detecting circuit, two dimensional image gray scale compensation circuit and three
Tie up image gray-scale level compensation circuit, the resolution detecting circuit be used for detect the view data from host computer system whether X-Y scheme
As data or 3 d image data, if described image data are two-dimensional image datas, the resolution detecting circuit is by described in
The initial grey decision-making in view data is exported to the two dimensional image gray scale compensation circuit, the two dimensional image gray scale compensation
Circuit obtains the amendment grey decision-making according to the initial grey decision-making and the gray scale compensation value；If described image data are three-dimensional
View data, then the resolution detecting circuit the initial grey decision-making is exported to the 3-D view gray scale compensation circuit,
The 3-D view gray scale compensation circuit obtains the amendment grey decision-making according to the initial grey decision-making and the gray scale compensation value.
Therefore, had when time schedule controller receives two-dimensional image data by two dimensional image gray scale compensation circuit to described image data
Targetedly gray scale compensation is handled, when time schedule controller receives 3 d image data by 3-D view gray scale compensation circuit pair
Described image data carry out targetedly gray scale compensation and handled, so that no matter liquid crystal display panel is showing two dimensional image also
It is the uniformity that display brightness can be kept when showing 3-D view, improves the quality of the liquid crystal display panel.
In another embodiment of the present invention, the structure of the liquid crystal display driver system and running and Fig. 1 institutes
The structure and running of the liquid crystal display driver system described in embodiment shown are essentially identical, and difference is：The figure
When as data being 3 d image data, the 3-D view gray scale compensation circuit 130 is read from the memory 200 in order
The gray scale compensation value, (n+1)th+3 (n-1) the rows gray scale compensation value correspond to 3 d image data described in line n, i.e. 4n-2
The row gray scale compensation value correspond to 3 d image data described in line n, wherein, n is the integer more than or equal to 1, the three-dimensional
Image gray-scale level compensation circuit is according to described initial in 3 d image data described in gray scale compensation value described in 4n-2 rows and line n
Grey decision-making obtains and corrects grey decision-making described in line n.For example, when the resolution detecting circuit 110 detects input timing control
The view data of device 100 is resolution ratio when being 3840*540 3 d image data, the 3-D view gray scale compensation circuit 130
The gray scale compensation value is read from the memory 200, gray scale compensation value described in the 2nd row is supplied to graphics described in the 1st row
As data, gray scale compensation value described in the 6th row is supplied to 3 d image data described in the 2nd row, and gray scale compensation value described in the 10th row carries
3 d image data described in the 3rd row is supplied, gray scale compensation value described in the 14th row is supplied to 3 d image data described in the 4th row, according to
This analogizes, until gray scale compensation value described in the 2158th row is supplied into 3 d image data described in the 540th row.So that per a line
Initial grey decision-making in the 3 d image data is compensated, and so as to obtain 540 row amendment grey decision-makings, makes the display panel
Display brightness it is uniform.
In yet another embodiment of the present invention, the structure of the liquid crystal display driver system and running and Fig. 1 institutes
The structure and running of the liquid crystal display driver system described in embodiment shown are essentially identical, and difference is：The figure
When as data being 3 d image data, the 3-D view gray scale compensation circuit 130 is read from the memory 200 in order
The gray scale compensation value, the n-th+2+3 (n-1) rows gray scale compensation value correspond to 3 d image data described in line n, i.e. 4n-1
The row gray scale compensation value correspond to 3 d image data described in line n, wherein, n is the integer more than or equal to 1, the three-dimensional
Image gray-scale level compensation circuit is according to described initial in gray scale compensation value described in the 4n-1 rows and the line n view data
Grey decision-making obtains and corrects grey decision-making described in line n.For example, when the resolution detecting circuit 110 detects input timing control
The view data of device 100 is resolution ratio when being 3840*540 3 d image data, the 3-D view gray scale compensation circuit 130
The gray scale compensation value is read from the memory 200, gray scale compensation value described in the 3rd row is supplied to graphics described in the 1st row
As data, gray scale compensation value described in the 7th row is supplied to 3 d image data described in the 2nd row, and gray scale compensation value described in the 11st row carries
3 d image data described in the 3rd row is supplied, gray scale compensation value described in the 15th row is supplied to 3 d image data described in the 4th row, according to
This analogizes, until gray scale compensation value described in the 2159th row is supplied into 3 d image data described in the 540th row.So that per a line
Initial grey decision-making in the 3 d image data is compensated, and so as to obtain 540 row amendment grey decision-makings, makes the display panel
Display brightness it is uniform.
In yet another embodiment of the present invention, structure and running and Fig. 1 institutes of the liquid crystal display driver system
The structure and running of the liquid crystal display driver system described in embodiment shown are essentially identical, and difference is：The figure
When as data being 3 d image data, the 3-D view gray scale compensation circuit 130 is read from the memory 200 in order
The gray scale compensation value, the n-th+3+3 (n-1) rows gray scale compensation value correspond to 3 d image data described in line n, i.e. 4n rows
The gray scale compensation value corresponds to 3 d image data described in line n, wherein, n is integer more than or equal to 1, the graphics
Gray scale compensation value and the initial GTG in the line n view data as described in gray scale compensation circuit according to the 4n rows
Value obtains and corrects grey decision-making described in line n.For example, when the resolution detecting circuit 110 detects input timing controller 100
View data when for resolution ratio being 3840*540 3 d image data, the 3-D view gray scale compensation circuit 130 is from institute
State and the gray scale compensation value is read in memory 200, gray scale compensation value described in the 4th row is supplied to 3-D view number described in the 1st row
According to gray scale compensation value described in eighth row is supplied to 3 d image data described in the 2nd row, and gray scale compensation value described in the 12nd row is supplied to
3 d image data described in 3rd row, gray scale compensation value described in the 16th row are supplied to 3 d image data described in the 4th row, according to this class
Push away, until gray scale compensation value described in the 2160th row is supplied into 3 d image data described in the 540th row.So that described in per a line
Initial grey decision-making in 3 d image data is compensated, and so as to obtain 540 row amendment grey decision-makings, makes the aobvious of the display panel
Show brightness uniformity.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the feature for combining the embodiment or example description
It is contained at least one embodiment or example of the present invention.In this manual, the schematic representation of above-mentioned term is differed
Surely identical embodiment or example are referred to.Moreover, specific features, structure, material or the feature of description can be any one
Combined in an appropriate manner in individual or multiple embodiments or example.
Embodiments described above, the restriction to the technical scheme protection domain is not formed.It is any in above-mentioned implementation
Modifications, equivalent substitutions and improvements made within the spirit and principle of mode etc., should be included in the protection model of the technical scheme
Within enclosing.
Claims (9)
1. a kind of liquid crystal display driver system, including time schedule controller and the memory that is electrically connected with the time schedule controller, institute
State and gray scale compensation value is preset with memory, the time schedule controller receives view data and read default in the memory
Gray scale compensation value, it is characterised in that the time schedule controller is electric including resolution detecting circuit and with the resolution detecting
The two dimensional image gray scale compensation circuit and 3-D view gray scale compensation circuit of road electrical connection, the resolution detecting circuit receive institute
State view data and judge the type of described image data, if described image data are two-dimensional image datas, the resolution ratio
Circuit for detecting exports the initial grey decision-making in described image data to the two dimensional image gray scale compensation circuit, the X-Y scheme
As gray scale compensation circuit reads the gray scale compensation value from the memory in order, gray scale compensation value described in line n is corresponding
Line n described image data, the two dimensional image gray scale compensation circuit is according to described in gray scale compensation value described in line n and line n
Initial grey decision-making in view data obtains line n amendment grey decision-making, wherein, n is the integer more than or equal to 1；If the figure
As data are 3 d image datas, then the resolution detecting circuit exports the initial grey decision-making in described image data to institute
3-D view gray scale compensation circuit is stated, the 3-D view gray scale compensation circuit is mended according to the initial grey decision-making and the GTG
Repay value and obtain corresponding amendment grey decision-making.
2. liquid crystal display driver system as claimed in claim 1, it is characterised in that the liquid crystal display driver system also includes
Liquid crystal display panel, the liquid crystal display panel include multiple pixel regions, and multiple pixel regions are in rectangular arrangement, institute
State and a numerical tabular is preset in memory, the numerical tabular includes the tactic gray scale compensation value of multirow, GTG described in per a line
Offset corresponds to pixel region described in a line.
3. liquid crystal display driver system as claimed in claim 2, it is characterised in that the gray scale compensation value bag in the numerical tabular
Prestore gray scale compensation value and computing gray scale compensation value are included, the gray scale compensation value that prestores is pre-stored within the memory, described
The gray scale compensation that prestores value includes pixel region described in Nth row and the pixel region of the intersection of pixel region described in Nth column
Corresponding gray scale compensation value, N=1+ (i-1) d, wherein, i is the integer more than or equal to 1, and d is a fixed value, and d is just
Integer；The computing gray scale compensation value is surrounded by the pixel region of Nth row, N+d rows, Nth column and N+d row
Gray scale compensation value corresponding to any pixel point, by relational expression
<mrow>
<mi>G</mi>
<mo>=</mo>
<mfrac>
<mrow>
<mo>(</mo>
<mi>d</mi>
<mo>-</mo>
<mi>x</mi>
<mo>)</mo>
<mo>*</mo>
<mo>(</mo>
<mi>d</mi>
<mo>-</mo>
<mi>y</mi>
<mo>)</mo>
<mo>*</mo>
<mi>A</mi>
<mo>+</mo>
<mo>(</mo>
<mi>d</mi>
<mo>-</mo>
<mi>x</mi>
<mo>)</mo>
<mo>*</mo>
<mi>y</mi>
<mo>*</mo>
<mi>C</mi>
<mo>+</mo>
<mi>x</mi>
<mo>*</mo>
<mo>(</mo>
<mi>d</mi>
<mo>-</mo>
<mi>y</mi>
<mo>)</mo>
<mo>*</mo>
<mi>B</mi>
<mo>+</mo>
<mi>x</mi>
<mo>*</mo>
<mi>y</mi>
<mo>*</mo>
<mi>D</mi>
</mrow>
<msup>
<mi>d</mi>
<mn>2</mn>
</msup>
</mfrac>
</mrow>
Calculate and obtain, wherein G is the computing gray scale compensation value, and x is any pixel point and pixel region described in Nth row and Nth column
The distance of the intersection in domain in the row direction, y are that the intersection of any pixel point and pixel region described in Nth row and Nth column exists
Distance on column direction, A are the gray scale compensation value that prestores of the intersection of pixel region described in Nth row and Nth column, B be Nth row with
N+d arranges the gray scale compensation value that prestores of the intersection of the pixel region, and C is Nth column and the phase of pixel region described in N+d rows
The gray scale compensation value that prestores at friendship, D are the gray scale compensation value that prestores of the intersection of N+d rows and the N+d row pixel region.
4. liquid crystal display driver system as claimed in claim 2, it is characterised in that described image data are 3 d image datas
When, the 3-D view gray scale compensation circuit reads the gray scale compensation value, and 4n-3 rows from the memory in order
The gray scale compensation value corresponds to 3 d image data described in line n, wherein, n is greater than or equal to 1 integer, the graphics
Gray scale compensation value and the initial ash in 3 d image data described in line n as described in gray scale compensation circuit according to the 4n-3 rows
Rank value obtains and corrects grey decision-making described in line n.
5. liquid crystal display driver system as claimed in claim 2, it is characterised in that described image data are 3 d image datas
When, the 3-D view gray scale compensation circuit reads the gray scale compensation value, and 4n-2 rows from the memory in order
The gray scale compensation value corresponds to 3 d image data described in line n, wherein, n is integer more than or equal to 1, the graphics
Gray scale compensation value and the initial ash in 3 d image data described in line n as described in gray scale compensation circuit according to the 4n-2 rows
Rank value obtains and corrects grey decision-making described in line n.
6. liquid crystal display driver system as claimed in claim 2, it is characterised in that described image data are 3 d image datas
When, the 3-D view gray scale compensation circuit reads the gray scale compensation value, and 4n-1 rows from the memory in order
The gray scale compensation value corresponds to 3 d image data described in line n, wherein, n is integer more than or equal to 1, the graphics
Gray scale compensation value and the initial ash in 3 d image data described in line n as described in gray scale compensation circuit according to the 4n-1 rows
Rank value obtains and corrects grey decision-making described in line n.
7. liquid crystal display driver system as claimed in claim 2, it is characterised in that described image data are 3 d image datas
When, the 3-D view gray scale compensation circuit reads the gray scale compensation value, and 4n rows institute from the memory in order
State gray scale compensation value and correspond to 3 d image data described in line n, wherein n is the integer more than or equal to 1, the 3-D view ash
Rank compensation circuit obtains according to gray scale compensation value described in the 4n rows with the initial grey decision-making in 3 d image data described in line n
Obtain and correct grey decision-making described in line n.
8. the liquid crystal display driver system as described in any one of claim 1 to 7, it is characterised in that the liquid crystal driving
System also includes data driver, and the data driver is electrically connected with the time schedule controller, and the time schedule controller is also
Including D/A converting circuit, the amendment grey decision-making is converted to primary simulation voltage by the D/A converting circuit, and by described in
Primary simulation voltage output is to the data driver.
9. liquid crystal display driver system as claimed in claim 8, it is characterised in that the liquid crystal display driver system also includes
The gamma circuit electrically connected with the data driver and the scanner driver electrically connected with the time schedule controller, the sequential
Controller is to the scanner driver output control signal, the gamma circuit output calibration voltage to the data driver,
The gamma electric voltage corresponding to the amendment grey decision-making is obtained to correct the primary simulation voltage.
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| CN105741764B (en) * | 2016-03-31 | 2019-07-02 | 深圳市华星光电技术有限公司 | The method for eliminating OLED display panel Mura |
| CN106328079B (en) * | 2016-08-25 | 2019-02-26 | 深圳市华星光电技术有限公司 | Image brightness compensation method and compensating module |
| CN107945727B (en) * | 2017-11-23 | 2020-06-05 | 深圳市华星光电半导体显示技术有限公司 | Mura phenomenon compensation method and device |
| US10235971B1 (en) * | 2018-03-14 | 2019-03-19 | Solomon Systech (Shenzhen) Limited | System and method for enhancing display uniformity at display boundaries |
| US10553138B2 (en) * | 2018-04-18 | 2020-02-04 | Solomon Systech (Shenzhen) Limited | System and method of an adaptive driving compensation for enhancing display uniformity |
| CN110660369B (en) * | 2019-09-06 | 2022-05-20 | 北京集创北方科技股份有限公司 | Display driving method, source electrode driving circuit, driving chip and display device |
| CN112289274B (en) * | 2020-10-28 | 2022-11-25 | 青岛信芯微电子科技股份有限公司 | Display method and device |
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| KR101279659B1 (en) * | 2010-05-14 | 2013-06-27 | 엘지디스플레이 주식회사 | Stereoscopic image display and driving method thereof |
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| CN102419481A (en) * | 2010-09-28 | 2012-04-18 | 财团法人工业技术研究院 | Dual-mode image display device and image luminance adjusting method |
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